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Sample records for abu dhabi dubai

  1. The operation, products and promotion of waterpipe businesses in New York City, Abu Dhabi and Dubai.

    PubMed

    Joudrey, P J; Jasie, K A; Pykalo, L; Singer, S T; Woodin, M B; Sherman, S

    2016-04-01

    We evaluated the customers, operations, products and advertising of these businesses to explore the unique policy challenges created by the suppliers of waterpipes. We completed a cross-sectional survey consisting of structured site observations and in-person interviews of businesses in New York City, Abu Dhabi and Dubai identified using Google, Yelp, Timeout Dubai and Timeout Abu Dhabi and neighbourhood visits in 2014. Regular customers made up 59% of customers. Franchises or chains were 28% of businesses. Waterpipes made up 39% of sales with 87% of businesses offering food within their menu. Flavoured tobacco made up 94% of sales. Discounts were offered by 47% of businesses and 94% of businesses used advertising, often through social media. The market consists of largely independent businesses, with a large regular customer base, frequently offering diversified services beyond waterpipes. These businesses advertise using both traditional and social media. The economics of waterpipe businesses is very different from the economics of cigarettes, and unique regulatory strategies are needed to control this epidemic. PMID:27432405

  2. Abu Dhabi presses oil development program

    SciTech Connect

    Not Available

    1992-06-29

    This paper reports that Abu Dhabi Co. for Onshore Operations (ADCO), the biggest oil producer in the United Arab Emirates, reports 1991 was a successful year despite the Persian Gulf war. Meantime, Abu Dhabi's Zakum, the second largest oil field in the Persian Gulf, boosted production to more than 300,000 b/d, and officials said production will rise further when a platform complex is recommissioned in 1993.

  3. Horizontal drilling improves recovery in Abu Dhabi

    SciTech Connect

    Muhairy, A.A. ); Farid, E.A. )

    1993-09-13

    Both onshore and offshore Abu Dhabi, horizontal wells have increased productivity three to four times more than that from vertical and deviated wells in the same reservoirs. Horizontal drilling technology was first applied in Abu Dhabi in February 1988, and through March 1993, 48 wells have been horizontally drilled. During the 5 years of horizontal drilling, the experience gained by both operating company and service company personnel has contributed to a substantial improvement in drilling rate, and hence, a reduction in drilling costs. The improvements in drilling and completions resulted from the following: The horizontal drilling and completion operations were analyzed daily, and these follow-up analyses helped optimize the planning of subsequent wells. The bits and bottom hole assemblies were continuously analyzed for optimum selections. Steerable drilling assemblies were found very effective in the upper sections of the wells. The paper describes drilling activities onshore and offshore, completion design, and the outlook for future well drilling.

  4. 75 FR 66360 - Transportation and Energy Products and Services Trade Mission; Doha, Qatar, and Abu Dhabi and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-28

    ..., and Abu Dhabi and Dubai, U.A.E. I. Mission Description The United States Department of Commerce's... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE... key decision makers in the U.A.E. and Qatar, and form partnerships which will allow their companies...

  5. Documentation and Monitoring of Built Heritage in Abu Dhabi, Uae

    NASA Astrophysics Data System (ADS)

    Muhammad, S.

    2013-07-01

    The ancient oasis-city of Al Ain in Abu Dhabi Emirate still retains the most important and outstanding cultural heritage of United Arab Emirates (UAE). The larger area of Abu Dhabi Emirate comprised of archaeological sites, cultural landscapes and historic buildings dating back to 3rd millennium to the recent pre-oil era. Traditional materials like stone, earth and palm wood were used in combination with local construction methods. For the last seven years the newly formed Abu Dhabi Tourism & Culture Authority (TCA Abu Dhabi)1 has been actively involved in conservation of built heritage in Abu Dhabi Emirate with the help of its Conservation Section. Documentation prior to any conservation and restoration works is considered as a basic pre-requisite for understanding an historic building or site. It is a process which continues during the conservation of any monument and is the only accurate tool for recording information in order to understand the structure, ultimately leading to the management of cultural heritage. Application and use of tools, ranging from basic manual techniques to 3D laser scanning, based on the best practices and international guidelines the exercise will help in establishing a documentation lab with standard procedures, specifications and tools for the documentation and monitoring the built heritage of Abu Dhabi Emirate. This paper will discuss a range of case studies and will demonstrate how documentation and monitoring of the built heritage has augmented the various conservation initiatives on a variety of building types.

  6. UAE-Abu Dhabi: World Oil Report 1991

    SciTech Connect

    Not Available

    1991-08-01

    This paper reports that production expansion projects remain the focus in Abu Dhabi, with increased drilling operations underway both on and offshore. Only Abu Dhabi Co. for Onshore Operations (Adco) and Abu Dhabi Marine Operating Co. (Adma-Opco) provide any information about activity in the Emirate. Plans call for boosting productive capacity by 1 million bpd to near 3 million bpd. Present sustainable capacity is estimated at 1.8 million bpd by the CIA. This rate has been exceeded recently (it reached over 2 million bpd) to take advantage of higher prices in late 1990 and to make up for the shortfall due to loss of Iraqi and Kuwaiti exports. However, it does not appear higher rates can be sustained for a long period of time. By year-end 1992, sustainable output has been projected to reach 2.3 million bpd.

  7. A profile and approach to chronic disease in Abu Dhabi

    PubMed Central

    2012-01-01

    As a country, the United Arab Emirates has developed very rapidly from a developing country with a largely nomadic population, to a modern and wealthy country with a Western lifestyle. This economic progress has brought undoubted social benefits and opportunities for UAE citizens, including a high and increasing life expectancy. However, rapid modernization and urbanization have contributed to a significant problem with chronic diseases, particularly obesity-related cardiovascular risk. In response the Health Authority of Abu Dhabi has significantly strengthened its data systems to better assess the baseline and measure the impact of targeted interventions. The unique population-level Weqaya Programme for UAE Nationals living in Abu Dhabi has recruited more than 94% of adults into a screening programme for the rapid identification of those at risk and the deployment of targeted interventions to control that risk. This article describes the burden of non-communicable disease in Abu Dhabi, and the efforts made by the Health Authority of Abu Dhabi to tackle this burden including the development of a whole population cardiovascular screening programme changes to health policy, particularly in terms of lifestyle and behaviour change, and empowerment of the community to enable individuals to make healthier choices. In addition, recommendations have been made for global responsibility for tackling chronic disease. PMID:22738714

  8. The Abu Dhabi Cardiovascular Program: the continuation of Framingham.

    PubMed

    Hajat, Cother; Harrison, Oliver

    2010-01-01

    Sixty years on from its first publication, the Framingham study has made an historic impact in risk identification and prediction of cardiovascular disease (CVD) burden globally. The challenge for the 21st century is in finding practical and scalable methods for effective implementation of population-level interventions that are adaptable to low-, middle-, and high-income settings. Within its first 2 years, the Abu Dhabi Cardiovascular Program, "Weqaya," has delivered a Framingham Risk Score for almost every adult Emirati. This is complemented by a clear and progressive program including the health sector and societal approach to the delivery of interventions for CVD. The health sector response includes the use of clear, evidence-based standards of clinical care, customer-focused service innovation such as the use of mobile and wellness clinics, and attention to the patient experience, and improving compliance using a mixture of encourage, enable, and enforce mechanics. Components of the Abu Dhabi societal approach include "top-down" measures to align the civil sector response including use of policies and regulation, for example, for trade and urban planning. The "bottom-up" measures aim to empower individuals, groups, and populations. Key to the success of this approach lies in central coordination and routine monitoring and evaluation, incorporating the use of simple, shared metrics. The Abu Dhabi approach has created a solid platform for scalable intervention, and for "learning by doing," with impact being monitored at the level of individuals, groups and the whole population. The unique data architecture in Abu Dhabi will enable the first cardiovascular risk score to be developed for the region and the incorporation of novel, modifiable risk factors into the model. The last 2 years have seen huge progress in Abu Dhabi for CVD, but the coming 5 to 10 years promise to unearth real, large-scale solutions, building on the original Framingham model. Furthermore

  9. Coincident Observations of Surface Ozone and NMVOCs over Abu Dhabi

    NASA Astrophysics Data System (ADS)

    Abbasi, Naveed; Majeed, Tariq; Iqbal, Mazhar; Tarasick, David; Davies, Jonathan; Riemer, Daniel; Apel, Eric

    2016-07-01

    The vertical profiles of ozone are measured coincidently with non-methane volatile organic compounds (NMVOCs) at the meteorological site located at the Abu Dhabi international airport (latitude 24.45N; longitude 54.22E) during the years 2012 - 2014. Some of the profiles show elevated surface ozone >95 ppbv during the winter months (December, January and February). The ground-level NMVOCs obtained from the gas chromatography-flame ionization detection/mass spectrometry system also show elevated values of acetylene, ethane, propane, butane, pentane, benzene, and toluene. NMVOCs and ozone abundances in other seasons are much lower than the values in winter season. NMVOCs are emitted from an extensive number of sources in urban environments including fuel production, distribution, and consumption, and serve as precursor of ozone. Transport sources contribute a substantial portion of the NMVOC burden to the urban atmosphere in developed regions. Abu Dhabi is located at the edge of the Arabian Gulf and is highly affected by emissions from petrochemical industries in the neighboring Gulf region. The preliminary results indicate that wintertime enhancement in ozone is associated with large values of NMVOCs at Abu Dhabi. The domestic production of surface ozone is estimated from the combination of oxygen recombination and NMVOCs and compared with the data. It is estimated that about 40-50% of ozone in Abu Dhabi is transported from the neighbouring petrochemical industries. We will present ozone sounding and NMVOCs data and our model estimates of surface ozone, including a discussion on the high levels of the tropospheric ozone responsible for contaminating the air quality in the UAE. This work is supported by National Research Foundation, UAE.

  10. Designing Professional Development for Principals in a Context of Change: The Case of Abu Dhabi

    ERIC Educational Resources Information Center

    Blaik Hourani, Rida; Stringer, Patricia

    2015-01-01

    Schools in Abu Dhabi are going through a period of transformation and reform. The Abu Dhabi Education Council commenced a professional development plan for principals to enhance their capabilities to manage and initiate change in light of the reforms. This study was conducted to explore principals' perspectives on professional development…

  11. Geomorphological evolution of the dynamic Abu Dhabi coastline

    NASA Astrophysics Data System (ADS)

    Lokier, S. W.; Onuma, T.; Hamada, H.

    2012-04-01

    The Abu Dhabi coastline provides an ideal setting for studying sedimentation processes in an arid depositional environment directly analogous to that of many of the region's Mesozoic petroleum reservoirs. This coastline displays a low-angle ramp geometry with supratidal evaporite precipitation passing offshore, through a broad carbonate-evaporite intertidal setting with complex depositional facies geometries, into a subtidal carbonate depositional environment. The coast is locally protected from open marine conditions by a number of peninsulas and offshore shoals and islands associated with the east-west trending Great Pearl Bank. This offers an ideal setting for studying the effects of relative sea-level fluctuations on sedimentary systems and shoreline morphology. A late Holocene progradation rate of 0.75 m/yr has previously been established for the Abu Dhabi Sabkha system (Lokier and Steuber, 2008) however we conjecture that the system has now entered a broadly retrogradational phase. By applying current estimates of global sea level rise of 3.3 mm/yr derived from satellite altimetry and tide gauges (Cazenave and Nerem, 2004; Leuliette et al., 2004), we calculate present day marine transgression of the Abu Dhabi shoreline at a rate of 8.25 m/yr. This study utilised 7 years of fieldwork observations and satellite imagery to establish numerous lines of evidence for active retrogradation over an area of Abu Dhabi coastline lying between Al Dabb'iya in the east and Abu al Abyad in the west. The landward advance of spits and beach ridge systems was monitored at several locations with rates of retrogradation of up to 28 m per year being recorded in some instances. These are significantly greater than those predicted from sea-level rise and may indicate a local subsidence. The landward and seaward limits of microbial mat belts are strongly controlled by their location in the intertidal zone. The seaward side of the Recent microbial mat belt in the Abu Dhabi Sabkha is

  12. Wrench tectonics in Abu Dhabi, United Arab Emirates

    SciTech Connect

    Ibrahim, M.; Mohamed, A.S.

    1995-08-01

    Recent studies of the geodynamics and tectonic history of the Arabian plate throughout geologic time have revealed that Wrench forces played an important role in the structural generation and deformation of Petroleum basins and reservoirs of the United Arab Emirates. The tectonic analysis of Abu Dhabi revealed that basin facies evolution were controlled by wrench tectonics, examples are the Pre-Cambrian salt basin, the Permo-Triassic and Jurassic basins. In addition, several sedimentary patterns were strongly influenced by wrench tectonics, the Lower Cretaceous Shuaiba platform margin and associated reservoirs is a good example. Wrench faults, difficult to identify by conventional methods, were examined from a regional perspective and through careful observation and assessment of many factors. Subsurface structural mapping and geoseismic cross-sections supported by outcrop studies and geomorphological features revealed a network of strike slip faults in Abu Dhabi. Structural modelling of these wench forces including the use of strain ellipses was applied both on regional and local scales. This effort has helped in reinterpreting some structural settings, some oil fields were interpreted as En Echelon buckle folds associated with NE/SW dextral wrench faults. Several flower structures were interpreted along NW/SE sinistral wrench faults which have significant hydrocarbon potential. Synthetic and Antithetic strike slip faults and associated fracture systems have played a significant role in field development and reservoir management studies. Four field examples were discussed.

  13. Source of solutes to the coastal sabkha of Abu Dhabi

    USGS Publications Warehouse

    Wood, W.W.; Sanford, W.E.; Al Habshi, A.R.S.

    2002-01-01

    An ascending-brine model is proposed to address the observed isotope geochemistry, solute composition, and solute and water fluxes in the coastal sabkha of the Emirate of Abu Dhabi. Mass-balance measurements document that >95% of the solutes are derived from ascending continental brines; minor amounts are derived from rainfall and from groundwater entering from upgradient areas. Nearly 100% of the annual water loss is from evaporation and not lateral discharge. Direct rainfall on the sabkha and subsequent recharge to the underlying aquifer account for ~ 90% of the annual water input to the system; the remaining 10% comes from both lateral and ascending groundwater flow. Thus, the water and solutes in this system are from different sources. Solute concentrations of conservative (i.e., nonreactive) elements in the coastal, sabkha-covered aquifer are consistent with the fluid pore volumes of ascending brine calculated from hydrologic properties. Calcium to sulfate ratios and sulfur isotopes are consistent with this source of solute from the underlying Tertiary formations. Recharging rainwater dissolves halite and other soluble minerals on the surface, causing the solution to become more dense and sink to the bottom of the aquifer where it vertically mixes with less dense ascending brines. Solutes are returned to the surface by capillary forces and recycled or lost from the system by eolian or fluvial processes. Thus, the system becomes vertically mixed, consistent with the presence of tritium throughout the aquifer; but there is essentially no horizontal mixing of seawater with groundwater. The observed seawater solutes in the supratidal zone come from interstitial seawater trapped by the rapid progradation of the sediments into the Arabian Gulf and are not refluxed or laterally mixed. The ascending-brine model contrasts significantly with both the seawater-flooding and evaporative-pumping models previously proposed as a source of solutes to the coastal sabkha of the

  14. Migration of P-12 Education from Its Current State to One of High Quality: The Aspirations of Abu Dhabi

    ERIC Educational Resources Information Center

    Badri, Masood; Al Khaili, Mugheer

    2014-01-01

    Key system challenges identified by the Abu Dhabi Education Council provided the impetus for an aggressive strategic plan as necessary guidance and support for the development of the P-12 education system to contribute to advancing its positioning in the global knowledge economy. For the Abu Dhabi Education Council, the analysis served as a tool…

  15. Reflections on the Reggio Emilia Approach as Inspiration for Early Childhood Teacher Education in Abu Dhabi, UAE

    ERIC Educational Resources Information Center

    Baker, Fiona S.

    2015-01-01

    This article discusses a teacher educator's reflections on her participation in an international study group and visits to the infant-toddler and pre-schools of Reggio Emilia, Italy, as inspiration for early childhood teacher education in Abu Dhabi, UAE. The following five themes are reflected on, for teacher education in the context of Abu Dhabi:…

  16. Abu Dhabi's Masdar project: dazzling? or Just a mirage?

    SciTech Connect

    2009-06-15

    The Masdar project is to build a self-contained economic zone creating 70,000 jobs and eventually housing as many as 40,000 residents in the middle of the desert by 2016. The community, which is envisioned to house a science and technology park and housing, is designed to be carbon neutral and virtually waste-free. Two-thirds of the power is to come from a 10 MW solar farm, and nearly all water is to be recycled and reused. There will be virtually no waste, as all packaging and material are to be recycled, used for power generation or turned into compost. The car-free zone will be served by advanced personal rapid transit (PRT) vehicles that will zip residents around the 6.5-square-kilometer area. The problem with Masdar is not so much what goes inside it, but rather what is outside. Masdar is unlikely to change the image of Abu Dhabi as the most carbon-intensive place on earth.

  17. Inhibitors, cladded trees protect sour gas wells in Abu Dhabi

    SciTech Connect

    Morsi, K.M. )

    1994-06-13

    Continuous chemical inhibition has prevented corrosion downhole, and tests indicate that Inconel 625 cladding will protect the christmas trees on wells producing sour gas from the Thamama C reservoir. Metallic corrosion is a costly problem. Estimates indicate that corrosion costs the oil industry several billion dollars per year. In addition, oil companies spend over $100 million/year on corrosion inhibitors for combating downhole tubular and casing corrosion. Abu Dhabi National Oil Co. (Adnoc) has successfully completed wells in extremely harsh operating conditions with high temperatures, pressures, and high concentrations of H[sub 2]S, CO[sub 2], and brine. Such environments require special materials for downhole and surface equipment. The Thamama C reservoir, in an onshore gas field, produces gas containing H[sub 2]S and CO[sub 2] in the range of 0.7--8.0 mole % and 4.0--8.0 mole %, respectively. The Thamama C gas-gathering system comprises 19 wells connected to four trunk lines that transport produced gas and associated condensate to a central processing plant. The paper discusses material and inhibitor selection.

  18. Distribution of heavy metals in the coastal area of Abu Dhabi in the United Arab Emirates.

    PubMed

    Al Rashdi, Saeed; Arabi, Alya A; Howari, Fares M; Siad, Abdi

    2015-08-15

    Fifty-seven sediment samples were collected from Abu Dhabi coastal area, United Arab Emirates (UAE). The concentrations of heavy metals including antimony, arsenic, barium, cadmium, cobalt, copper, mercury, lead, molybdenum, nickel and zinc were obtained using Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) and X-ray fluorescence. Heavy metal contaminations in Abu Dhabi had increased since 2004. Nevertheless, the enrichment factors, geoaccumulation indices and the pollution load index of 0.3 showed no pollution with any of the measured metals except arsenic. PMID:26081249

  19. Temporal variability of air-pollutants over Abu Dhabi, UAE

    NASA Astrophysics Data System (ADS)

    Ghedira, H.; Ben Romdhane, H.; Beegum S, N.

    2013-12-01

    Air quality, the measure of the concentrations of gaseous pollutants and size or number of particulate matter, is one of the most important problems worldwide and has strong implications on human health, ecosystems, as well as regional and global climate. The levels of air pollutants such as sulphur dioxide (SO2), particulate matters (PM10, PM2.5), Ozone (O3), Nitrogen dioxide (NO2), Carbon monoxide (CO), etc. show an alarming increase in urban cities across the world and in many cases, the concentrations have grown well above the World Health Organization's guidelines for ambient air-quality standards. Here, we present the periodic fluctuations observed in the concentrations of air pollutants such as SO2, NO2, O3, CO, H2S, NMHC (Non methane Hydro Carbon) and VOC (volatile organic compounds) based on the measurements collected during the period 2008-2010 at Masdar City, Abu Dhabi (24.42oN, 54.61oE, 7m MSL). The measurements were carried out using an Air Quality Monitoring System (AQM60). All these pollutant species showed statistical periodic: diurnal, monthly, seasonal and annual variations. Diurnally, all the species, except ozone, depicted an afternoon low and nighttime/early morning high, attributed to the dynamics of the local atmospheric boundary layer. Whereas, an opposite pattern with daytime high and nighttime low was observed for O3, as the species is formed in the troposphere by catalytic photochemical reactions of NOx with CO, CH4 and other VOCs. Seasonally, the pollutants depicted higher values during summer and relatively lower values during winter, associated with changes in synoptic airmass types and/or removal processes. Concentrations of all the gaseous pollutants are within the National Ambient Air Quality Standards (NAAQS) throughout the year, whereas the PM10 often exceeded the limits, especially during dust storm episodes.

  20. Implementing a multifaceted intervention to decrease central line-associated bloodstream infections in SEHA (Abu Dhabi Health Services Company) intensive care units: the Abu Dhabi experience.

    PubMed

    Latif, Asad; Kelly, Bernadette; Edrees, Hanan; Kent, Paula S; Weaver, Sallie J; Jovanovic, Branislava; Attallah, Hadeel; de Grouchy, Kristin K; Al-Obaidli, Ali; Goeschel, Christine A; Berenholtz, Sean M

    2015-07-01

    OBJECTIVE To determine whether implementation of a multifaceted intervention would significantly reduce the incidence of central line-associated bloodstream infections. DESIGN Prospective cohort collaborative. SETTING AND PARTICIPANTS Intensive care units of the Abu Dhabi Health Services Company hospitals in the Emirate of Abu Dhabi. INTERVENTIONS A bundled intervention consisting of 3 components was implemented as part of the program. It consisted of a multifaceted approach that targeted clinician use of evidence-based infection prevention recommendations, tools that supported the identification of local barriers to these practices, and implementation ideas to help ensure patients received the practices. Comprehensive unit-based safety teams were created to improve safety culture and teamwork. Finally, the measurement and feedback of monthly infection rate data to safety teams, senior leaders, and staff in participating intensive care units was encouraged. The main outcome measure was the quarterly rate of central line-associated bloodstream infections. RESULTS Eighteen intensive care units from 7 hospitals in Abu Dhabi implemented the program and achieved an overall 38% reduction in their central line-associated bloodstream infection rate, adjusted at the hospital and unit level. The number of units with a quarterly central line-associated bloodstream infection rate of less than 1 infection per 1,000 catheter-days increased by almost 40% between the baseline and postintervention periods. CONCLUSION A significant reduction in the global morbidity and mortality associated with central line-associated bloodstream infections is possible across intensive care units in disparate settings using a multifaceted intervention. PMID:25871927

  1. Variation by Gender in Abu Dhabi High School Students' Interests in Physics

    ERIC Educational Resources Information Center

    Badri, Masood; Mazroui, Karima Al; Al Rashedi, Asma; Yang, Guang

    2016-01-01

    Abu Dhabi high school students' interest in physics in different contexts was investigated with a survey conducted in connection with the international project, The Relevance of Science Education (ROSE). The sample consisted of 2248 students in public and private schools. Means of most items that belong to the school physics context for both girls…

  2. School Improvements in Abu Dhabi, United Arab Emirates: Asking the "Expert Witnesses"

    ERIC Educational Resources Information Center

    Dickson, Martina

    2013-01-01

    Government schools in Abu Dhabi, as part of wide-scale educational reforms undertaken in the whole of the United Arab Emirates, have undergone massive school improvement developments over the past seven years. Over the course of these years, the reality of student life for those in government schools has been widely altered. This research explores…

  3. The Westernization of Arab Pedagogies: Abu Dhabi Attempts to Move towards a Knowledge Economy

    ERIC Educational Resources Information Center

    Chrystall, Steve

    2014-01-01

    As the oil reserves in the United Arab Emirates (UAE) are forecast to become depleted over the next 50 to 150 years, the emirate of Abu Dhabi has set a vision to develop a knowledge economy in order to develop alternative sources of revenue in areas such as tourism, alternative energy and innovative business enterprises. Reformation of its…

  4. Variation by Gender in Abu Dhabi High School Students' Interests in Physics

    NASA Astrophysics Data System (ADS)

    Badri, Masood; Mazroui, Karima Al; Al Rashedi, Asma; Yang, Guang

    2016-04-01

    Abu Dhabi high school students' interest in physics in different contexts was investigated with a survey conducted in connection with the international project, The Relevance of Science Education (ROSE). The sample consisted of 2248 students in public and private schools. Means of most items that belong to the school physics context for both girls and boys were below the score of (3.0). The most interesting topics for both genders were connected with fantasy items. The least interesting items (particularly for girls) were connected with artifacts and technological processes. Girls assigned the highest scores for "why we dream" and "life and death." Boys assigned the highest scores for "inventions and discoveries" and "life outside of earth." The main message of the study is that new curricular approaches and textbooks can be developed through combining technological and human contexts. The implications for curriculum development, teacher professional development programs, and other education strategies in Abu Dhabi are discussed in light of the ROSE survey.

  5. Transmission of Middle East Respiratory Syndrome Coronavirus Infections in Healthcare Settings, Abu Dhabi

    PubMed Central

    Nguyen, Duc; Aden, Bashir; Al Bandar, Zyad; Al Dhaheri, Wafa; Abu Elkheir, Kheir; Khudair, Ahmed; Al Mulla, Mariam; El Saleh, Feda; Imambaccus, Hala; Al Kaabi, Nawal; Sheikh, Farrukh Amin; Sasse, Jurgen; Turner, Andrew; Abdel Wareth, Laila; Weber, Stefan; Al Ameri, Asma; Abu Amer, Wesal; Alami, Negar N.; Bunga, Sudhir; Haynes, Lia M.; Hall, Aron J.; Kallen, Alexander J.; Kuhar, David; Pham, Huong; Pringle, Kimberly; Tong, Suxiang; Whitaker, Brett L.; Gerber, Susan I.; Al Hosani, Farida Ismail

    2016-01-01

    Middle East respiratory syndrome coronavirus (MERS-CoV) infections sharply increased in the Arabian Peninsula during spring 2014. In Abu Dhabi, United Arab Emirates, these infections occurred primarily among healthcare workers and patients. To identify and describe epidemiologic and clinical characteristics of persons with healthcare-associated infection, we reviewed laboratory-confirmed MERS-CoV cases reported to the Health Authority of Abu Dhabi during January 1, 2013–May 9, 2014. Of 65 case-patients identified with MERS-CoV infection, 27 (42%) had healthcare-associated cases. Epidemiologic and genetic sequencing findings suggest that 3 healthcare clusters of MERS-CoV infection occurred, including 1 that resulted in 20 infected persons in 1 hospital. MERS-CoV in healthcare settings spread predominantly before MERS-CoV infection was diagnosed, underscoring the importance of increasing awareness and infection control measures at first points of entry to healthcare facilities. PMID:26981708

  6. Abu Dhabi Basemap Update Using the LiDAR Mobile Mapping Technology

    NASA Astrophysics Data System (ADS)

    Alshaiba, Omar; Amparo Núñez-Andrés, M.; Lantada, Nieves

    2016-04-01

    Mobile LiDAR system provides a new technology which can be used to update geospatial information by direct and rapid data collection. This technology is faster than the traditional survey ways and has lower cost. Abu Dhabi Municipal System aims to update its geospatial system frequently as the government entities have invested heavily in GIS technology and geospatial data to meet the repaid growth in the infrastructure and construction projects in recent years. The Emirate of Abu Dhabi has witnessed a huge growth in infrastructure and construction projects in recent years. Therefore, it is necessary to develop and update its basemap system frequently to meet their own organizational needs. Currently, the traditional ways are used to update basemap system such as human surveyors, GPS receivers and controller (GPS assigned computer). Then the surveyed data are downloaded, edited and reviewed manually before it is merged to the basemap system. Traditional surveying ways may not be applicable in some conditions such as; bad weather, difficult topographic area and boundary area. This paper presents a proposed methodology which uses the Mobile LiDAR system to update basemap in Abu Dhabi by using daily transactions services. It aims to use and integrate the mobile LiDAR technology into the municipality's daily workflow such that it becomes the new standard cost efficiency operating procedure for updating the base-map in Abu Dhabi Municipal System. On another note, the paper will demonstrate the results of the innovated workflow for the base-map update using the mobile LiDAR point cloud and few processing algorithms.

  7. Epidemiology and referral patterns of patients with chronic kidney disease in the Emirate of Abu Dhabi.

    PubMed

    Richards, Nick; Hassan, Mohamed; Saleh, Abdul Karim; Dastoor, Hormazdiar; Bernieh, Bassam; Abouchacra, Samra; Al Jabri, Omar; Fleischmann, Alan; Richards, Marie; Marcelli, Daniele

    2015-09-01

    According to estimates, the dialysis prevalence in Abu Dhabi is around 370 per million population. The annual growth is 12-15% and the dialysis population is likely to double in the next five years. Most patients present to dialysis as an emergency and only 2.7% have an arteriovenous fistula at the first dialysis. The prevalence of chronic kidney disease (CKD) in the Emirate is undefined. A study of the epidemiology of CKD and referral patterns was undertaken. SEHA, the Abu Dhabi Health Service delivery company, has a unified computer system containing all measurements made in its laboratories. This study considered all serum creatinine measurements performed between 1 September 2011 and 31 October 2012 from outpatient departments or emergency rooms. The estimated glomerular filtration rate (eGRF) was calculated using the Modification of Diet in Renal Disease formula (the Schwartz formula was used for children). We identified 331,360 samples from 212,314 individuals. The mean serum creatinine was 61 ± 48 μmol/L in females (59 ± 43 μmol/L in Emiratis, 63 ± 54 μmol/L in expatriates) and 87 ± 69 μmol/L in males (80 ± 59 μmol/L in Emiratis, 92 ± 74 μmol/L in expatriates). Among Emiratis, 4.6% of males and 2.8% of females had an eGFR between CKD 3 and 5. Among expatriates, 4.2% of males and 3.2% of females had an eGFR between CKD 3 and 5. On average, eight months elapsed before a patient with CKD 3, and three months for a patient in CKD 5, to attend the nephrology clinic. This study has defined the prevalence of CKD within Abu Dhabi and demonstrated the need to improve identification and referral of CKD patients. Possible solutions include campaigns to increase public and physician awareness of CKD. PMID:26354587

  8. Detailed Study of Seismic Wave Attenuation in Carbonate Rocks: Application on Abu Dhabi Oil Fields

    NASA Astrophysics Data System (ADS)

    Bouchaala, F.; Ali, M. Y.; Matsushima, J.

    2015-12-01

    Seismic wave attenuation is a promising attribute for the petroleum exploration, thanks to its high sensitivity to physical properties of subsurface. It can be used to enhance the seismic imaging and improve the geophysical interpretation which is crucial for reservoir characterization. However getting an accurate attenuation profile is not an easy task, this is due to complex mechanism of this parameter, although that many studies were carried out to understand it. The degree of difficulty increases for the media composed of carbonate rocks, known to be highly heterogeneous and with complex lithology. That is why few attenuation studies were done successfully in carbonate rocks. The main objectives of this study are, Getting an accurate and high resolution attenuation profiles from several oil fields. The resolution is very important target for us, because many reservoirs in Abu Dhabi oil fields are tight.Separation between different modes of wave attenuation (scattering and intrinsic attenuations).Correlation between the attenuation profiles and other logs (Porosity, resistivity, oil saturation…), in order to establish a relationship which can be used to detect the reservoir properties from the attenuation profiles.Comparison of attenuation estimated from VSP and sonic waveforms. Provide spatial distribution of attenuation in Abu Dhabi oil fields.To reach these objectives we implemented a robust processing flow and new methodology to estimate the attenuation from the downgoing waves of the compressional VSP data and waveforms acquired from several wells drilled in Abu Dhabi. The subsurface geology of this area is primarily composed of carbonate rocks and it is known to be highly fractured which complicates more the situation, then we separated successfully the intrinsic attenuation from the scattering. The results show that the scattering is significant and cannot be ignored. We found also a very interesting correlation between the attenuation profiles and the

  9. Electromagnetic mapping of buried paleochannels in eastern Abu Dhabi Emirate, U.A.E.

    USGS Publications Warehouse

    Fitterman, D.V.; Menges, C.M.; Al Kamali, A.M.; Essa, Jama F.

    1991-01-01

    Transient electromagnetic soundings and terrain conductivity meter measurements were used to map paleochannel geometry in the Al Jaww Plain of eastern Abu Dhabi Emirate, U.A.E. as part of an integrated hydrogeologic study of the Quaternary alluvial aquifer system. Initial interpretation of the data without benefit of well log information was able to map the depth to a conductive clay layer of Tertiary age that forms the base of the aquifer. Comparison of the results with induction logs reveals that a resistive zone exists that was incorporated into the interpretation and its lateral extent mapped with the transient electromagnetic sounding data. ?? 1991.

  10. Descriptive epidemiology of injury cases: findings from a pilot injury surveillance system in Abu Dhabi.

    PubMed

    Rahman, M Hafizur; Allen, Katharine A; Hyder, Adnan A

    2016-06-01

    Considering the high burden of injuries, the Health Authority - Abu Dhabi developed a draft electronic and paper-based injury and poisoning notification system (IPNS) to generate better data on the nature and severity of injuries. The pilot testing and evaluation of IPNS was conducted with the specific objectives to (1) identify the characteristics of injury cases, (2) explore potential risk factors, (3) illustrate the nature and type of data, and (4) the working mechanism of data collection. Data were collected from selected hospitals on patient demographics, injury information and clinical assessment. Descriptive, bivariate and multivariate analyses were conducted. Of 4226 injury cases, nearly three-fourths were male, majority were non-UAE nationals, and the mean age was 21.9. Multivariate findings suggested that compared to UAE nationals, non-UAE nationals were 27% more likely to experience fatal, severe or moderate injuries (p = 0.01). Individuals with health insurance were 31% less likely to suffer a fatal, severe or moderate injury compared to those having no health insurance (p < 0.001). This is the first systematically standardised collection of injury data across three facilities in Abu Dhabi, and provides initial information on characteristics and injury risk factors that will help identify the need for evidence-based intervention for injury prevention and control. PMID:25262785

  11. Gis-Based Wind Farm Site Selection Model Offshore Abu Dhabi Emirate, Uae

    NASA Astrophysics Data System (ADS)

    Saleous, N.; Issa, S.; Mazrouei, J. Al

    2016-06-01

    The United Arab Emirates (UAE) government has declared the increased use of alternative energy a strategic goal and has invested in identifying and developing various sources of such energy. This study aimed at assessing the viability of establishing wind farms offshore the Emirate of Abu Dhabi, UAE and to identify favourable sites for such farms using Geographic Information Systems (GIS) procedures and algorithms. Based on previous studies and on local requirements, a set of suitability criteria was developed including ocean currents, reserved areas, seabed topography, and wind speed. GIS layers were created and a weighted overlay GIS model based on the above mentioned criteria was built to identify suitable sites for hosting a new offshore wind energy farm. Results showed that most of Abu Dhabi offshore areas were unsuitable, largely due to the presence of restricted zones (marine protected areas, oil extraction platforms and oil pipelines in particular). However, some suitable sites could be identified, especially around Delma Island and North of Jabal Barakah in the Western Region. The environmental impact of potential wind farm locations and associated cables on the marine ecology was examined to ensure minimal disturbance to marine life. Further research is needed to specify wind mills characteristics that suit the study area especially with the presence of heavy traffic due to many oil production and shipping activities in the Arabian Gulf most of the year.

  12. Tensions in Policy and Practice: Influences on Play in Abu Dhabi's New School Model KG Framework

    ERIC Educational Resources Information Center

    Baker, Fiona S.

    2014-01-01

    This article reports on three salient socio-cultural and systemic factors that are influential in play in Abu Dhabi Education Council's (ADEC's) kindergarten (KG) framework from the teacher perspective. Anecdotal evidence suggests that during ADEC's progressive educational reform, emphasis has reverted to academic performance…

  13. Critical Success Factors in the Curriculum Alignment Process: The Case of the College of Business at Abu Dhabi University

    ERIC Educational Resources Information Center

    Camba, Pitzel; Krotov, Vlad

    2015-01-01

    The main goals of this article are to (a) assist business schools in understanding the curriculum alignment process, and (b) uncover critical success factors in curriculum alignment. Based on a case study conducted at the College of Business at Abu Dhabi University, a detailed curriculum alignment process description is provided. The process…

  14. Economic risk and efficiency assessment of fisheries in Abu-Dhabi, United Arab Emirates (UAE): A stochastic approach

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The fishing industry in Abu-Dhabi, United Arab Emirates (UAE) plays an important role in diversifying food sources in order to enhance national food security. The fishing industry is facing increasing risk that may impact the sustainability (i.e., quantity and quality) of the fish caught and consume...

  15. Challenges Presented to Personal Theories, Beliefs and Practices of Play in Abu Dhabi Kindergartens: The English Medium Teacher Perspective

    ERIC Educational Resources Information Center

    Baker, Fiona S.

    2015-01-01

    Abu Dhabi Education Council's new school model recognizes the value of play, although anecdotal evidence suggests that there are challenges to play in the preschool context. This article reports on challenges from the English Medium teacher perspective. Findings show that challenges are related to: (a) children meeting teacher expectations…

  16. Paving the road for hydraulic fracturing in Paleozoic tight gas reservoirs in Abu Dhabi

    NASA Astrophysics Data System (ADS)

    Alzarouni, Asim

    This study contributes to the ongoing efforts of Abu Dhabi National Oil Company (ADNOC) to improve gas production and supply in view of increasing demand and diminishing conventional gas reservoirs in the region. The conditions of most gas reservoirs with potentially economical volumes of gas in Abu Dhabi are tight abrasive deep sand reservoirs at high temperature and pressures. Thus it inevitably tests the limit of both conventional thinking and technology. Accurate prediction of well performance is a major challenge that arises during planning phase. The primary aim is to determine technical feasibility for the implementation of the hydraulic fracture technology in a new area. The ultimate goal is to make economical production curves possible and pave the road to tap new resource of clean hydrocarbon energy source. The formation targeted in this study is characterized by quartzitic sandstone layers and variably colored shale and siltstones with thin layers of anhydrites. It dates back from late Permian to Carboniferous age. It forms rocks at the lower reservoir permeability ranging from 0.2 to less than 1 millidarcy (mD). When fractured, the expected well flow in Abu Dhabi offshore deep gas wells will be close to similar tight gas reservoir in the region. In other words, gas production can be described as transient initially with high rates and rapidly declining towards a pseudo-steady sustainable flow. The study results estimated fracturing gradient range from 0.85 psi/ft to 0.91 psi/ft. In other words, the technology can be implemented successfully to the expected rating without highly weighted brine. Hence, it would be a remarkable step to conduct the first hydraulic fracturing successfully in Abu Dhabi which can pave the road to tapping on a clean energy resource. The models predicted a remarkable conductivity enhancement and an increase of production between 3 to 4 times after fracturing. Moreover, a sustainable rate above 25 MMSCFD between 6 to 10 years is

  17. Oil Spill Detection and Monitoring of Abu Dhabi Coastal Zone Using KOMPSAT-5 SAR Imagery

    NASA Astrophysics Data System (ADS)

    Harahsheh, H. A.

    2016-06-01

    Abu Dhabi Government endorsed vision for its Maritime Strategy `A safe, secure and sustainable maritime domain for Abu Dhabi'. This research study share this vision using the concept of monitoring as tool for marine protection against any possible oil pollution. The best technology to detect and monitor oil pollution and in particularly oil spill is SAR imagery In this case study we chose KOMPSAT-5 SAR. KOMPSAT-5 carries X-band SAR for earth observation, and is capable of day-and-night imaging under all weather condition. It provides three operation modes: High Resolution Mode to provide 1 m resolution, Standard Mode to provide 3 m resolution and Wide Swath Mode to provide 20 m resolution with 100 km swath at 550 km altitude, with four modes of polarization. KOMPSAT-5 provides products for various applications; security and defense, mapping, and natural resource management, environmental monitoring, disaster monitoring and more. For our case study we chose to work with Wide Swath mode (WS) with Vertical polarization (VV) to cover a wide area of interest located to the north west of Abu Dhabi including some important islands like "Zirku Island", and areas with oil production activities. The results of data acquired on 4th May 2015 show some spot of oil spill with length estimated about 3 KM, and the daily satellite data acquisition over the period July 24 through July 31 shows serious and many oil spill events some are small, but many others are considered to be big with area size around 20 km2. In the context of oil spill pollution in the seas, we have to consider the development and increase of overseas transportation, which is an important factor for both social and economic sectors. The harmful effects of marine pollution are numerous, from the damage of marine life to the damage of the aquatic ecosystem as whole. As such, the need for oil slick detection is crucial, for the location of polluted areas and to evaluate slick drift to protect the coastline

  18. Visibility Modeling and Forecasting for Abu Dhabi using Time Series Analysis Method

    NASA Astrophysics Data System (ADS)

    Eibedingil, I. G.; Abula, B.; Afshari, A.; Temimi, M.

    2015-12-01

    Land-Atmosphere interactions-their strength, directionality and evolution-are one of the main sources of uncertainty in contemporary climate modeling. A particularly crucial role in sustaining and modulating land-atmosphere interaction is the one of aerosols and dusts. Aerosols are tiny particles suspended in the air ranging from a few nanometers to a few hundred micrometers in diameter. Furthermore, the amount of dust and fog in the atmosphere is an important measure of visibility, which is another dimension of land-atmosphere interactions. Visibility affects all form of traffic, aviation, land and sailing. Being able to predict the change of visibility in the air in advance enables relevant authorities to take necessary actions before the disaster falls. Time Series Analysis (TAS) method is an emerging technique for modeling and forecasting the behavior of land-atmosphere interactions, including visibility. This research assess the dynamics and evolution of visibility around Abu Dhabi International Airport (+24.4320 latitude, +54.6510 longitude, and 27m elevation) using mean daily visibility and mean daily wind speed. TAS has been first used to model and forecast the visibility, and then the Transfer Function Model has been applied, considering the wind speed as an exogenous variable. By considering the Akaike Information Criterion (AIC) and Mean Absolute Percentage Error (MAPE) as a statistical criteria, two forecasting models namely univarite time series model and transfer function model, were developed to forecast the visibility around Abu Dhabi International Airport for three weeks. Transfer function model improved the MAPE of the forecast significantly.

  19. Response to Emergence of Middle East Respiratory Syndrome Coronavirus, Abu Dhabi, United Arab Emirates, 2013–2014

    PubMed Central

    Al Hosani, Farida Ismail; Al Mulla, Mariam; Kim, Lindsay; Pham, Huong; Alami, Negar N.; Khudhair, Ahmed; Hall, Aron J.; Aden, Bashir; El Saleh, Feda; Al Dhaheri, Wafa; Al Bandar, Zyad; Bunga, Sudhir; Abou Elkheir, Kheir; Tao, Ying; Hunter, Jennifer C.; Nguyen, Duc; Turner, Andrew; Pradeep, Krishna; Sasse, Jurgen; Weber, Stefan; Tong, Suxiang; Whitaker, Brett L.; Haynes, Lia M.; Curns, Aaron; Gerber, Susan I.

    2016-01-01

    In January 2013, several months after Middle East respiratory syndrome coronavirus (MERS-CoV) was first identified in Saudi Arabia, Abu Dhabi, United Arab Emirates, began surveillance for MERS-CoV. We analyzed medical chart and laboratory data collected by the Health Authority–Abu Dhabi during January 2013–May 2014. Using real-time reverse transcription PCR, we tested respiratory tract samples for MERS-CoV and identified 65 case-patients. Of these patients, 23 (35%) were asymptomatic at the time of testing, and 4 (6%) showed positive test results for >3 weeks (1 had severe symptoms and 3 had mild symptoms). We also identified 6 clusters of MERS-CoV cases. This report highlights the potential for virus shedding by mildly ill and asymptomatic case-patients. These findings will be useful for MERS-CoV management and infection prevention strategies. PMID:27314227

  20. Response to Emergence of Middle East Respiratory Syndrome Coronavirus, Abu Dhabi, United Arab Emirates, 2013-2014.

    PubMed

    Al Hosani, Farida Ismail; Pringle, Kimberly; Al Mulla, Mariam; Kim, Lindsay; Pham, Huong; Alami, Negar N; Khudhair, Ahmed; Hall, Aron J; Aden, Bashir; El Saleh, Feda; Al Dhaheri, Wafa; Al Bandar, Zyad; Bunga, Sudhir; Abou Elkheir, Kheir; Tao, Ying; Hunter, Jennifer C; Nguyen, Duc; Turner, Andrew; Pradeep, Krishna; Sasse, Jurgen; Weber, Stefan; Tong, Suxiang; Whitaker, Brett L; Haynes, Lia M; Curns, Aaron; Gerber, Susan I

    2016-07-01

    In January 2013, several months after Middle East respiratory syndrome coronavirus (MERS-CoV) was first identified in Saudi Arabia, Abu Dhabi, United Arab Emirates, began surveillance for MERS-CoV. We analyzed medical chart and laboratory data collected by the Health Authority-Abu Dhabi during January 2013-May 2014. Using real-time reverse transcription PCR, we tested respiratory tract samples for MERS-CoV and identified 65 case-patients. Of these patients, 23 (35%) were asymptomatic at the time of testing, and 4 (6%) showed positive test results for >3 weeks (1 had severe symptoms and 3 had mild symptoms). We also identified 6 clusters of MERS-CoV cases. This report highlights the potential for virus shedding by mildly ill and asymptomatic case-patients. These findings will be useful for MERS-CoV management and infection prevention strategies. PMID:27314227

  1. A Review of the Water and Energy Sectors and the Use of a Nexus Approach in Abu Dhabi.

    PubMed

    Paul, Parneet; Al Tenaiji, Ameena Kulaib; Braimah, Nuhu

    2016-04-01

    Rapid population increase coupled with urbanization and industrialization has resulted in shortages of water in the Middle East. This situation is further exacerbated by global climate change due to greenhouse gas emissions. Recent research advocates that solutions to the global water security and scarcity crisis must involve water-energy nexus approaches. This means adopting policies and strategies that harmonize these inter-related sectors to minimize environmental impact while maximizing human benefit. In the case of Abu Dhabi, when designing and locating oil/gas refineries and associated power generation facilities, previous relevant decisions were based on simple economic and geographical grounds, such as nearness to oil rigs, pipelines, existing industries and port facilities, etc. The subsequent design and location of water abstraction and treatment works operated by the waste heat from these refining and/or power generation processes was catered for as an afterthought, meaning that there is now a mismatch between the water and energy supplies and demands. This review study was carried out to show how Abu Dhabi is trying now to integrate its water-energy sectors using a nexus approach so that future water/power infrastructure is designed optimally and operated in harmony, especially in regard to future demand. Based upon this review work, some recommendations are made for designers and policy makers alike to bolster the nexus approach that Abu Dhabi is pursuing. PMID:27023583

  2. A Review of the Water and Energy Sectors and the Use of a Nexus Approach in Abu Dhabi

    PubMed Central

    Paul, Parneet; Al Tenaiji, Ameena Kulaib; Braimah, Nuhu

    2016-01-01

    Rapid population increase coupled with urbanization and industrialization has resulted in shortages of water in the Middle East. This situation is further exacerbated by global climate change due to greenhouse gas emissions. Recent research advocates that solutions to the global water security and scarcity crisis must involve water–energy nexus approaches. This means adopting policies and strategies that harmonize these inter-related sectors to minimize environmental impact while maximizing human benefit. In the case of Abu Dhabi, when designing and locating oil/gas refineries and associated power generation facilities, previous relevant decisions were based on simple economic and geographical grounds, such as nearness to oil rigs, pipelines, existing industries and port facilities, etc. The subsequent design and location of water abstraction and treatment works operated by the waste heat from these refining and/or power generation processes was catered for as an afterthought, meaning that there is now a mismatch between the water and energy supplies and demands. This review study was carried out to show how Abu Dhabi is trying now to integrate its water–energy sectors using a nexus approach so that future water/power infrastructure is designed optimally and operated in harmony, especially in regard to future demand. Based upon this review work, some recommendations are made for designers and policy makers alike to bolster the nexus approach that Abu Dhabi is pursuing. PMID:27023583

  3. Recent benthic foraminifera and sedimentary facies distribution of the Abu Dhabi (United Arab Emirates) coastline

    NASA Astrophysics Data System (ADS)

    Fiorini, Flavia; Lokier, Stephen W.

    2014-05-01

    The distribution of benthic foraminifera and sedimentary facies from Recent coastline environments adjacent to the coastline of Abu Dhabi (UAE) was studied in detail with the aim to: 1) provide reliable analogs for understanding and interpreting the depositional environment of ancient shallow-marine sediments from the UAE; 2) assess any modifications in the distribution of benthic environments and sedimentary facies in an area affected by significant anthropogenic activities - particular construction and land reclamation. A total of 100 sea-floor sediment samples were collected in different shallow-marine sedimentary environments (nearshore shelf, beach-front, channels, ooid shoals, lagoon and mangals) close to the coastline of Abu Dhabi Island. Where possible, we revisited the sampling sites used in several studies conducted in the middle of last century (prior to any significant anthropogenic activities) to assess temporal changes in Recent benthic foraminifera and sedimentary facies distribution during the last 50 years. Five foraminiferal assemblages were recognized in the studied area. Species with a porcellaneous test mainly belonging to the genera Quinqueloculina, Triloculina, Spiroloculina, Sigmoilinita are common in all studied areas. Larger benthic foraminifera Peneroplis and Spirolina are particularly abundant in samples collected on seaweed. Hyaline foraminifera mostly belonging to the genera Elphidium, Ammonia, Bolivina and Rosalina are also common together with Miliolidae in the nearshore shelf and beach front. Agglutinated foraminifera (Clavulina, Textularia, Ammobaculites and Reophax) are present in low percentages. The species belonging to the genera Ammobaculites and Reophax are present only in the finest grain samples particularly in lagoons and mangal environments and have not been reported previously in the studied area. The majority of the ooid shoal sediments, the coarser sediments of the beach-front and samples collected in dredged channels

  4. Application of uphole data from petroleum seismic surveys to groundwater investigations, Abu Dhabi (United Arab Emirates)

    USGS Publications Warehouse

    Woodward, D.; Menges, C.M.

    1991-01-01

    Velocity data from uphole surveys were used to map the water table and the contact at the base dune sand/top alluvium as part of a joint National Drilling Company-United States Geological Survey Ground Water Research Project in the Emirate of Abu Dhabi. During 1981-1983, a reconnaissance seismic survey was conducted for petroleum exploration in the eastern region of Abu Dhabi. Approximately 2800 kilometers of seismic data, consisting of 92 lines, were acquired in the 2500 km2 concession area near Al Ain. Uphole surveys were conducted about 2 km apart along each seismic line, and were used to calculate weathering corrections required to further process in the seismic data. Approximately 1300 uphole surveys were completed in the concession area between March 1981 and June 1983. Reinterpretation of the velocity profiles derived from the uphole surveys provided data for determining the following subsurface layers, listed in descending order: (1) a surficial, unconsolidated weathering layer with a velocity from 300 to 450 m/s; (2) surficial dune sand, from 750 to 900 m/s; (3) unsaturated, unconsolidated alluvium, from 1000 to 1300 m/s; and (4) saturated, unconsolidated alluvium, from 1900 to 2200 m/s. Two interfaces-the water table and the base dune sand/top alluvium - were identified and mapped from boundaries between these velocity layers. Although the regional water table can fluctuate naturally as much as 3 m per year in this area and the water-table determinations from the uphole data span a 27-month period, an extremely consistent and interpretable water-table map was derived from the uphole data throughout the entire concession area. In the northern part of the area, unconfined groundwater moves northward and northwestward toward the Arabian Gulf; and in the central and southern parts of the area, groundwater moves westward away from the Oman Mountains. In the extreme southern area east of Jabal Hafit, groundwater moves southward into Oman. The map of the base

  5. Adolescents’ perception of substance use and factors influencing its use: a qualitative study in Abu Dhabi

    PubMed Central

    Al Ozaibi, Naseeba; Elarabi, Hisham; El-Kashef, Ahmed; Wanigaratne, Shamil; Almarzouqi, Amna; Alhosani, Ayesha; Al Ghaferi, Hamad

    2015-01-01

    Summary Objective The objective of this article is to gain a deeper understanding of the attitudes and perceptions of adolescents in the United Arab Emirates regarding substance and to identify factors that, in their view, may influence the risk of substance use and suggest possible interventions. Design This was a qualitative study that used a focus group approach. Setting The study was carried out in Abu Dhabi, United Arab Emirates. Participants Male and female teenagers aged 13-18 years residing in the emirate of Abu Dhabi. Main outcome measures Adolescents’ awareness of substance use, patterns of use and associated harm; Adolescents' perceptions about the factors associated with substance use. Results Six focus groups were carried out, and a total of 41 adolescents (20 males and 21 females) participated. Data analysis identified three main themes: (1) adolescents’ awareness of substance use and associated harm; (2) gender role and image and (3) perceived factors affecting substance use among adolescents. Knowledge of substances and related consequences of use varied between groups but was compatible with participants’ age and school years. Factors that participants believed influenced substance use were classified into: (1) parent–adolescent relationship, (2) peer pressure, (3) substance accessibility, (4) religiosity and (5) others. Many factors were believed to increase the risk of substance use among adolescents such as peer pressure, inadequate knowledge of the harmful consequences of drug use, family-related factors (e.g. low monitoring and poor parent–adolescents relationship), affordability and availability of substances, boredom and affluence. On the other hand, religiosity was as a shield against substance use, especially alcohol. Other identified protective factors included carrying out schools- and communities-based educational campaigns, enhancing social workers’ ability to raise awareness and detect early signs of addiction and

  6. Optimization of a solar powered absorption cycle under Abu Dhabi's weather conditions

    SciTech Connect

    Al-Alili, A.; Hwang, Y.; Radermacher, R.; Kubo, I.

    2010-12-15

    In order for the solar absorption air conditioners to become a real alternative to the conventional vapour compression systems, their performance has to be improved and their total cost has to be reduced. A solar powered absorption cycle is modeled using the Transient System Simulation (TRNSYS) program and Typical Meteorological Year 2 data of Abu Dhabi. It uses evacuated tube collectors to drive a 10 kW ammonia-water absorption chiller. Firstly, the system performance and its total cost are optimized separately using single objective optimization algorithms. The design variables considered are: the collector slope, the collector mass flow rate, the collector area and the storage tank volume. The single objective optimization results show that MATLAB global optimization methods agree with the TRNSYS optimizer. Secondly, MATLAB is used to solve a multi-objective optimization problem to improve the system's performance and cost, simultaneously. The optimum designs are presented using Pareto curve and show the potential improvements of the baseline system. (author)

  7. Sequence stratigraphy of the Hith/Upper Arab formations offshore Abu Dhabi, U.A.E.

    SciTech Connect

    Azer, S.R.; Peebles, R.G.

    1995-11-01

    The Kimmeridgian Upper Arab zones A, B, and C, are prolific hydrocarbon bearing reservoirs in central and western Offshore Abu Dhabi (OAD). They were deposited in an arid climate which dominated the Arabian peninsula during Late Jurassic times. The Berriasian to Tithonian Hith Formation which overlies the Arab reservoirs constitute the cap rock, which just to the east of central OAD gradually pinches out and forms a N-S feather edge. The Hith and Upper Arab zones A, B, and C form 450 to over 600 feet of massive to interbedded anhydrites with varying proportions of limestones and dolomites in central and western OAD. The Arab Formation in OAD is a major regressive unit which was deposited on a broad carbonate platform and prograded eastwards into an open marine shelf environment. The objectives of this paper are to develop a sequence stratigraphic framework, emphasizing cyclicity, facies architecture and diagenesis. Core and well log data geared with various inorganic geochemical analyses from four wells are used to constrain the current uncertainties in age dating and integrate the diagenetic signatures in the patterns of relative sea level change which considerably control the formation of those parasequences. This effort will help in better understanding and possible prediction of porosity in such prospective reservoirs.

  8. Chronostratigraphy and hydrocarbon habitat associated with the Jurassic carbonates of Abu Dhabi, United Arab Emirates

    SciTech Connect

    Alsharahan, A.S.; Whittle, G.L.

    1995-08-01

    Deposition of Jurassic epeiric shelf carbonates and evaporates were controlled by epeirogenic movement and sea level fluctuations which formed an excellent combination of source rocks, reservoirs and seats in Abu Dhabi. At the end of the Triassic, a relative drop in sea level, caused by eustatic sea level lowering in conjunction with minor tectonic uplift, resulted in non-deposition or erosion. In the Toarcian, deposition of carbonates and terrigenous, clastics produced the Marrat Formation. In the mid-Aalenian, a drop in sea level eroded much of the Marrat and some of the Triassic in offshore U.A.E. The deposition of the Hamlah Formation followed, under neritic, well-oxygenated conditions. The Middle Jurassic was characterized by widespread, normal marine shelf carbonates which formed the cyclic Izhara and Araej formations (reservoirs). In the Upper Jurassic, the carbonate shelf became differentiated into a broad shelf with a kerogen-rich intrashelf basin, formed in response to a eustatic rise coupled with epeirogenic downwarping and marine flooding. The intrashelf basin fill of muddy carbonate sediments constitutes the Diyab Formation and its onshore equivalent, the Dukhan Formation (source rocks). In the late Upper Jurassic, the climate became more arid and cyclic deposition of carbonates and evaporates prevailed, forming alternating peritidal anhydrite, dolomite and limestone in the Arab Formation (reservoir). Arid conditions continued into the Tithonian, fostering the extensive anhydrite of the Hith Formation (seal) in a sabkha/lagoonal setting on the shallow peritidal platform, the final regressive supratidal stage of this major depositional cycle.

  9. Hydrology of the coastal sabkhas of Abu Dhabi, United Arab Emirates

    USGS Publications Warehouse

    Sanford, Ward E.; Wood, Warren W.

    2001-01-01

    Water fluxes were estimated and a water budget developed for the land surface and a surficial 10-m-deep section of the coastal sabkhas that extend from the city of Abu Dhabi, United Arab Emirates, west to the border with Saudi Arabia. The fluxes were estimated on the basis of water levels and hydraulic conductivities measured in wells and evaporation rates measured with a humidity chamber. In contrast with conceptual models proposed in earlier studies, groundwater inflow is estimated to be small, whereas the largest components of the water budget are recharge from rainfall and evaporation from the water table. Estimates within a rectilinear volume of sabkha, defined as 1 m wide by 10 km long by 10 m deep, indicate that about 1 m3/year of water enters and exits by lateral groundwater flow; 40–50 m3/year enters by upward leakage; and 640 m3/year enters by recharge from rainfall. Based on the water and solute fluxes estimated for the upward leakage into the sabkha, 7–8 pore volumes of brine have entered the sabkha from below since the time the sabkha became saturated (7,000 years ago) as a result of the last global sea-level rise.

  10. Late Quaternary paleodune deposits in Abu Dhabi Emirate, UAF: Paleoclimatic implications

    SciTech Connect

    Brouwers, E.M.; Bown, T.M. ); Hadley, D.G. )

    1993-04-01

    Remnants of late Quaternary paleodunes are exposed near the coast of the Arabian Gulf and in large inland playas and interdunal areas in central and western Abu Dhabi Emirate over a distance of >45 km normal to the coast. Paleodunes occur south of Madinat Zayed (lat. 23[degree]35 N), which marks the northern limit of a modern dune field that grades into the mega-dune sand sea of the ar Rub al Khali, Saudi Arabia. Coastal paleodunes are composed of weakly cemented millolid foraminifers, ooids, and rounded biogenic grains, whereas inland and southward the paleodunes show a progressive increase in the proportion of eolian quartz sand. The paleodunes exhibit large-scale trough foresets in remnant exposures 0.5 to 10 m thick, indicating paleowind directions from 65[degree] to 184[degree] (dominantly southeast transport). Scattered paleoplaya remnants provide paleodune scale. Paleoplaya deposits form buttes 30--50 m high. If coeval with the Paleodunes, large-scale paleodune fields are implied (100+ m high), comparable to star dunes and sand mountains at the northwestern edge of the ar Rub al Khali. Based on U-Th isotopic analyses, the carbonate paleodune sands are >160ka and probably >250ka. The carbonate source was a shallow, nearly dry Arabian Gulf at a time when large areas were exposed during a low sea-level stand. Paleowind direction indicates that Pleistocene prevailing winds were northwesterly, the direction of the dominant (winter shamal) wind today. The geographic extend and implied magnitude of the paleodunes suggest large-scale eolian transport of carbonate sand during the Pleistocene disiccation, and admixed quartz sand identifies a youthful stage of contemporaneous evolution of the ar Rub al Khali. Wave-eroded paleodunes probably floor much of the present-day Gulf and extend beneath the modern dunes and sand mountains.

  11. Implementation of improved underbalanced drilling in AbuDhabi onshore field

    NASA Astrophysics Data System (ADS)

    Alhammadi, Adel Mohammed

    Abu Dhabi Company for Onshore Oil Operations (ADCO) is considering Underbalanced Drilling (UBD) as a means to develop lower permeability units in its fields. In addition to productivity and recovery gains, ADCO also expects reservoir characterization benefits from UBD. Reservoir screening studies were carried out on all of ADCO's reservoirs to determine their applicability for UBD. The primary business benefits of UBD were determined to be reservoir characterization, damage Mitigation, and rate of Penetration "ROP" Improvement. Apart from the primary benefits, some of the secondary benefits of UBD that were identified beforehand included rig performance. Since it's a trial wells, the challenge was to drill these wells safely, efficiently and of course meeting well objectives. Many operators worldwide drill these well in underbalanced mode but complete it overbalanced. In our case the plan was to drill and complete these wells in underbalanced condition. But we had to challenge most operators and come up with special and unique casing hanger design to ensure well control barriers exists while fishing the control line of the Downhole Deployment Valve "DDV". After intensive studies and planning, the hanger was designed as per our recommendations and found to be effective equipment that optimized the operational time and the cost as well. This report will provide better understanding of UBD technique in general and shade on the special designed casing hanger compared to conventional or what's most used worldwide. Even thought there were some issues while running the casing hanger prior drilling but managed to capture the learning's from each well and re-modified the hanger and come up with better deign for the future wells. Finally, the new design perform a good performance of saving the operation time and assisting the project to be done in a safe and an easy way without a major impact on the well cost. This design helped to drill and complete these wells safely with

  12. Cigarette, Water-pipe, and Medwakh Smoking Prevalence Among Applicants to Abu Dhabi's Pre-marital Screening Program, 2011

    PubMed Central

    Aden, Bashir; Karrar, Sara; Shafey, Omar; Al Hosni, Farida

    2013-01-01

    Background: This study assesses self-reported tobacco use prevalence (cigarette, water-pipe, and medwakh) among applicants to Abu Dhabi's Premarital Screening program during 2011. Methods: Premarital Screening data reported to the Health Authority – Abu Dhabi from April to December 2011 were utilized to estimate tobacco use prevalence among applicants. Smoking prevalence was examined by nationality, age group and gender. Results: Overall, 24.7% of Premarital Screening Program applicants were current smokers; 11.5% smoked cigarettes, 5.9% smoked medwakh (hand-held pipe), 4.8% smoked water-pipe and 2.5% smoked a combination (more than one type). Men (19.2%) were more likely than women (3.5%) to be current cigarette smokers. Women were much less likely to smoke medwakh (0.1%) than men (11.5%), with male UAE Nationals having the highest medwakh smoking prevalence (16.1%). The overall prevalence of water-pipe smoking was 6.8% among men and 2.8% for women with the highest water-pipe smoking prevalence (10.2%) among Arab expatriate men. Conclusions: Variations in tobacco use prevalence among Premarital Screening Program applicants reflect preferences for different modes of tobacco consumption by nationality, age group and gender. Enforcement of tobacco control laws, including implementation of clean indoor air laws and tobacco tax increases, and targeted health education programs are required to reduce tobacco consumption and concomitant tobacco-related morbidity and mortality. PMID:24404364

  13. Naming babies “Baby-of” at birth: A project to encourage earlier naming of infants in Abu Dhabi

    PubMed Central

    Santos, Rodney Jay; Palacios, Luena; Amuan, Rommel

    2015-01-01

    In 2013, Sweihan Healthcare Center, one of several government clinics in Abu Dhabi, catered to 19,349 patients or an average of 52 patients in a day. During the weekdays, close to 80 patients are seen per day, a relatively huge number for a small town clinic. In 2011, the clinic only saw 16,816 patients, which amounts to a 15% increase in two years. Circumstances called for a search for gaps in the system in order to ease the workflow of a steadily increasing patient influx. The focus was mainly on patient identification due to a considerable number of patients having the same name. Data extraction was simplified by the advent of electronic medical records and, as the names of the patients were filtered, one name stood out: “Baby of”. The goal of this project was to track the patients using the name “Baby of”, and change their names in their respective medical records and thus be able to comply with the International Patient Safety Goals (IPSG) of both Joint Commission International [1] and the Health Authority of Abu Dhabi [2]. PMID:26734312

  14. Hydrology of the coastal sabkhas of Abu Dhabi, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Sanford, Ward; Wood, Warren

    2001-05-01

    Water fluxes were estimated and a water budget developed for the land surface and a surficial 10-m-deep section of the coastal sabkhas that extend from the city of Abu Dhabi, United Arab Emirates, west to the border with Saudi Arabia. The fluxes were estimated on the basis of water levels and hydraulic conductivities measured in wells and evaporation rates measured with a humidity chamber. In contrast with conceptual models proposed in earlier studies, groundwater inflow is estimated to be small, whereas the largest components of the water budget are recharge from rainfall and evaporation from the water table. Estimates within a rectilinear volume of sabkha, defined as 1 m wide by 10 km long by 10 m deep, indicate that about 1 m3/year of water enters and exits by lateral groundwater flow; 40-50 m3/year enters by upward leakage; and 640 m3/year enters by recharge from rainfall. Based on the water and solute fluxes estimated for the upward leakage into the sabkha, 7-8 pore volumes of brine have entered the sabkha from below since the time the sabkha became saturated (7,000 years ago) as a result of the last global sea-level rise. Résumé. Les flux d'eau ont été estimés et le bilan hydrique a été réalisé pour la surface et les dix premiers mètres sous la surface de sebkhas littorales qui s'étendent à partir de la ville d'Abou Dhabi (Émirats Arabes Unis) à l'ouest de la frontière avec l'Arabie Saoudite. Les flux ont été estimés à partir des niveaux piézométriques et des conductivités hydrauliques mesurés dans les puits et à partir de mesures d'évaporation au moyen de capteurs d'humidité. En opposition avec les modèles conceptuels proposés dans les premières études, on estime que les apports par les eaux souterraines sont faibles, alors que les termes du bilan hydrique les plus importants sont la recharge par la pluie et l'évaporation à partir de la nappe. Les estimations dans un parallélépipède rectangle de sebkha, d'1 m de large, de

  15. Hydrology of the coastal sabkhas of Abu Dhabi, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Sanford, Ward; Wood, Warren

    2001-05-01

    Water fluxes were estimated and a water budget developed for the land surface and a surficial 10-m-deep section of the coastal sabkhas that extend from the city of Abu Dhabi, United Arab Emirates, west to the border with Saudi Arabia. The fluxes were estimated on the basis of water levels and hydraulic conductivities measured in wells and evaporation rates measured with a humidity chamber. In contrast with conceptual models proposed in earlier studies, groundwater inflow is estimated to be small, whereas the largest components of the water budget are recharge from rainfall and evaporation from the water table. Estimates within a rectilinear volume of sabkha, defined as 1 m wide by 10 km long by 10 m deep, indicate that about 1 m3/year of water enters and exits by lateral groundwater flow; 40-50 m3/year enters by upward leakage; and 640 m3/year enters by recharge from rainfall. Based on the water and solute fluxes estimated for the upward leakage into the sabkha, 7-8 pore volumes of brine have entered the sabkha from below since the time the sabkha became saturated (7,000 years ago) as a result of the last global sea-level rise. Résumé. Les flux d'eau ont été estimés et le bilan hydrique a été réalisé pour la surface et les dix premiers mètres sous la surface de sebkhas littorales qui s'étendent à partir de la ville d'Abou Dhabi (Émirats Arabes Unis) à l'ouest de la frontière avec l'Arabie Saoudite. Les flux ont été estimés à partir des niveaux piézométriques et des conductivités hydrauliques mesurés dans les puits et à partir de mesures d'évaporation au moyen de capteurs d'humidité. En opposition avec les modèles conceptuels proposés dans les premières études, on estime que les apports par les eaux souterraines sont faibles, alors que les termes du bilan hydrique les plus importants sont la recharge par la pluie et l'évaporation à partir de la nappe. Les estimations dans un parallélépipède rectangle de sebkha, d'1 m de large, de

  16. Variability of Surface pollutants and aerosol concentration over Abu Dhabi, UAE - sources, transport and current levels

    NASA Astrophysics Data System (ADS)

    Phanikumar, Devulapalli V.; Basha, Ghouse; Ouarda, Taha B. M. J.

    2015-04-01

    In the view of recent economic, industrial, and rapid development, Abu Dhabi (24.4oN; 54.4oE; 27m msl) has become one of the most populated regions in the world despite of extreme heat, frequent dust storms, and with distinctive topography. The major sources of air pollution are from the dust and sand storms, greenhouse gas emissions, and to some extent from industrial pollution. In order to realize the accurate and comprehensive understanding of air quality and plausible sources over this region, we have made a detailed analysis of three years simultaneous measurements during 2011-13 of pollutants such as O3, SO2, NO2, CO, and PM10 concentrations. Diurnal variation of meteorological parameters such as temperature and wind speed/relative humidity clearly shows daytime maximum/minimum in summer followed by pre-monsoon, post-monsoon and winter. The prevailing winds over this region are mostly from northwesterly direction (Shamal wind). Diurnal wind pattern showed a clear contrast with the majority of the wind pattern during nighttime and early morning is from the westerly/northwesterly and daytime is from southwesterly/southeasterly directions. The diurnal pattern of O3 shows minimum during 08 LT and increases thereafter reaching maximum at 17 LT and decreases during nighttime. However, the diurnal pattern of SO2 and NO2 show a peak at ~ 08 LT and dip at ~ 14 LT during all the seasons with some variability in each season. On the other hand, the diurnal pattern of CO shows a peculiar picture of elevated levels during daytime peaking at ~ 10 LT (prominent in summer and post-monsoon) followed by a sharp decrease and minimum is ~14 LT. PM10 concentration has an early morning peak at ~ 02 LT and then decreases to a minimum value at ~11 LT and again increases in the afternoon hours (maximum at ~17 LT) depicting a forenoon-afternoon asymmetry. Monthly variation of PM10 shows maximum in pre-monsoon season and minimum in winter. Our observations show the diurnal pattern of

  17. Recent benthic foraminifera and sedimentary facies from mangrove swamps and channels of Abu Dhabi (United Arab Emirates)

    NASA Astrophysics Data System (ADS)

    Fiorini, Flavia; Odeh, Weaam A. S. Al; Lokier, Stephen W.; Paul, Andreas

    2016-04-01

    Zonation of Recent mangrove environments can be defined using benthic foraminifera, however, little is known about foraminifera from mangrove environments of the Arabian Gulf. The objective of this study is to produce a detailed micropaleontological and sedimentological analysis to identify foraminiferal associations in several coastline environments (mangrove swamps and channels) located on the eastern side of Abu Dhabi Island (UAE). Detailed sediment sampling collection in mangal environments of Eastern Abu Dhabi was carried out to assess the distribution of living and dead benthic foraminifera in different sedimentary facies in the mangal and in the surrounding area comprising natural environments of the upper and lower intertidal area (mud flats and channels) and areas modified by anthropogenic activities (dredged channels). The fine-grain sediments collected near mangrove (Avicenna marina) roots presented a high abundance of living and dead foraminifera tests. The assemblages in these samples show very low diversity and are almost entirely constituted of small-sized opportunistic species belonging to the genera Ammonia and Elphidium. In particular: • Samples collected on the mud flat and in ponds at the margin of the channel show a foraminiferal assemblage characterised by abundant foraminifera belonging to the genera Ammonia, Elphidium, Triloculina, Quinqueloculina, Peneroplis and Spirolina. • Samples collected in the lower (wet) intertidal area close to Avicenna marina roots, presented a low-diversity assemblage mostly comprising opportunistic foraminifera of the genera Ammonia and Elphidium along with rare miliolidae. • Samples from the upper intertidal area (dry) close to Avicenna marina roots, produced an assemblage exclusively composed of small-sized opportunistic Ammonia and Elphidium, together with abundant specimens belonging to the genera Trochammina. Throchammina specimens have not been previously recorded from Recent sedimentary samples of

  18. A contemporary look at the sedimentary system of the coastal sabkha of Abu Dhabi (UAE): Primary deposition vs. early diagenesis

    NASA Astrophysics Data System (ADS)

    Paul, Andreas; Wang, Jiayi; Court, Wesley; Lokier, Stephen

    2016-04-01

    More than half a century ago, the Abu Dhabi coastline was subject to intensive research efforts by institutions from all over the world. This activity was mostly related to the onset of oil exploration in the region and the hypothesis that the modern Abu Dhabi Sabkha provides a direct analogue to the ancient deposits of the hydrocarbon-bearing Arab Formation. While research initially concentrated on a characterisation of the bulk depositional system, focus has recently shifted to answer more specific questions such as the role of microbial mats in the formation of dolomite. Through this shift to a smaller scale, the remainder of the sabkha, including its microbial mats, was neglected and little further activity was undertaken to characterise the coastal sabkha using modern, state-of-the-art, research tools and methods. This paper will not attempt to reinvent the wheel with respect to the work of the early researchers; we will instead present an updated model of the sedimentary system of the coastal sabkha of Abu Dhabi. This model will focus on establishing the relationship and controlling factors between primary deposits of the carbonate ramp system and secondary early diagenetic precipitates. Initial results show that primary deposits of the UAE's carbonate ramp are equivalent to carbonate mudstones, packstones, grainstones, and occasional rudstones with a packstone matrix, that form above a Holocene to Recent hardground. These deposits occur mostly in a subtidal to lower intertidal setting, landward of which they are gradually being covered by a green cyanobacterial layer that binds the primarily unconsolidated sediment. Further landward, in the middle and upper intertidal zones, these cyanobacterial layers grade into more complex microbial mat layers of potentially highly diverse bacterial and algal faunal composition. Microbial mat layers in the upper intertidal and the lower supratidal zones are increasingly interspersed with gypsum crystals and white

  19. Atmospheric bromine flux from the coastal Abu Dhabi sabkhat: A ground-water mass-balance investigation

    USGS Publications Warehouse

    Wood, W.W.; Sanford, W.E.

    2007-01-01

    A solute mass-balance study of ground water of the 3000 km2 coastal sabkhat (salt flats) of the Emirate of Abu Dhabi, United Arab Emirates, documents an annual bromide loss of approximately 255 metric tons (0.0032 Gmoles), or 85 kg/km2. This value is an order of magnitude greater than previously published direct measurements from the atmosphere over an evaporative environment of a salar in Bolivia. Laboratory evidence, consistent with published reports, suggests that this loss is by vapor transport to the atmosphere. If this bromine flux to the atmosphere is representative of the total earth area of active salt flats then it is a significant, and generally under recognized, input to the global atmospheric bromide flux.

  20. Observations of the atmospheric boundary layer height over Abu Dhabi, United Arab Emirates: Investigating boundary layer climatology in arid regions

    NASA Astrophysics Data System (ADS)

    Marzooqi, Mohamed Al; Basha, Ghouse; Ouarda, Taha B. M. J.; Armstrong, Peter; Molini, Annalisa

    2014-05-01

    Strong sensible heat fluxes and deep turbulent mixing - together with marked dustiness and a low substrate water content - represent a characteristic signature in the boundary layer over hot deserts, resulting in "thicker" mixing layers and peculiar optical properties. Beside these main features however, desert ABLs present extremely complex local structures that have been scarcely addressed in the literature, and whose understanding is essential in modeling processes such as the transport of dust and pollutants, and turbulent fluxes of momentum, heat and water vapor in hyper-arid regions. In this study, we analyze a continuous record of observations of the atmospheric boundary layer (ABL) height from a single lens LiDAR ceilometer operated at Masdar Institute Field Station (24.4oN, 54.6o E, Abu Dhabi, United Arab Emirates), starting March 2013. We compare different methods for the estimation of the ABL height from Ceilometer data such as, classic variance-, gradient-, log gradient- and second derivation-methods as well as recently developed techniques such as the Bayesian Method and Wavelet covariance transform. Our goal is to select the most suited technique for describing the climatology of the ABL in desert environments. Comparison of our results with radiosonde observations collected at the nearby airport of Abu Dhabi indicate that the WCT and the Bayesian method are the most suitable tools to accurately identify the ABL height in all weather conditions. These two methods are used for the definition of diurnal and seasonal climatologies of the boundary layer conditional to different atmospheric stability classes.

  1. Changes in Soil Chemistry and Agricultural Return Flow in an Integrated Seawater Agriculture System (ISAS) Demonstration in Abu Dhabi

    NASA Astrophysics Data System (ADS)

    Ning, Q.; Matiin, W. A.; Ahmad, F.

    2012-12-01

    Growing halophytes using Integrated Seawater Agriculture Systems (ISAS) offers a sustainable solution for the generation of biomass feedstock for carbon neutral biofuels - halophytes do not enter the foodchain and they do not compete with food-crops for natural resources. A field demonstration of ISAS in the coastal regions of Abu Dhabi, UAE, scheduled to start in 2013, will likely face a number of region-specific challenges not encountered in past demonstrations of ISAS at coastal locations in Mexico and Eritrea. The arid climate, unique soil chemistry (evaporite deposits, especially gypsum), and hypersaline coastal hydrogeology of Abu Dhabi will affect long-term halophyte agricultural productivity when Arabian Gulf seawater is applied to coastal soils as part of ISAS. Therefore, the changes in irrigation return flow quality and soil chemistry must be monitored closely over time to establish transient salt and water balances in order to assess the sustainability of ISAS in the region. As an initial phase of the ISAS demonstration project, numerical modeling of different seawater loadings onto coastal soils was conducted to estimate the chemical characteristics of soil and the irrigation return flow over time. These modeling results will be validated with field monitoring data upon completion of one year of ISAS operation. The results from this study could be used to (i) determine the optimal saline water loading that the soils at the ISAS site can tolerate, (ii) potential for sodicity of the soil with saline water application, (iii) impacts of land application of saline water on underlying coastal groundwater, and (iv) develop strategies to control soil water activities in favor of halophyte agricultural productivity.

  2. Structure, Aboveground Biomass, and Soil Characterization of Avicennia marina in Eastern Mangrove Lagoon National Park, Abu Dhabi

    NASA Astrophysics Data System (ADS)

    Alsumaiti, Tareefa Saad Sultan

    Mangrove forests are national treasures of the United Arab Emirates (UAE) and other arid countries with limited forested areas. Mangroves form a crucial part of the coastal ecosystem and provide numerous benefits to society, economy, and especially the environment. Mangrove trees, specifically Avicennia marina, are studied in their native habitat in order to characterize their population structure, aboveground biomass, and soil properties. This study focused on Eastern Mangrove Lagoon National Park in Abu Dhabi, which was the first mangrove protected area to be designated in UAE. In situ measurements were collected to estimate Avicennia marina status, mortality rate (%), height (m), crown spread (m), stem number, diameter at breast height (cm), basal area (m), and aboveground biomass (t ha-1 ). Small-footprint aerial light detection and ranging (LIDAR) data acquired by UAE were processed to characterize mangrove canopy height and aboveground biomass density. This included extraction of LIDAR-derived height percentile statistics, segmentation of the forest into structurally homogenous units, and development of regression relationships between in situ reference and remote sensing data using a machine learning approach. An in situ soil survey was conducted to examine the soils' physical and chemical properties, fertility status, and organic matter. The data of soil survey were used to create soil maps to evaluate key characteristics of soils, and their influence on Avicennia marina in Eastern Mangrove Lagoon National Park. The results of this study provide new insights into Avicennia marina canopy population, structure, aboveground biomass, and soil properties in Abu Dhabi, as data in such arid environments is lacking. This valuable information can help in managing and preserving this unique ecosystem.

  3. A GIS-BASED MULTI-CRITERIA EVALUATION SYSTEM FOR SELECTION OF LANDFILL SITES: a case study from Abu Dhabi, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Issa, S. M.; Shehhi, B. Al

    2012-07-01

    Landfill sites receive 92% of total annual solid waste produced by municipalities in the emirate of Abu Dhabi. In this study, candidate sites for an appropriate landfill location for the Abu Dhabi municipal area are determined by integrating geographic information systems (GIS) and multi-criteria evaluation (MCE) analysis. To identify appropriate landfill sites, eight input map layers including proximity to urban areas, proximity to wells and water table depth, geology and topography, proximity to touristic and archeological sites, distance from roads network, distance from drainage networks, and land slope are used in constraint mapping. A final map was generated which identified potential areas showing suitability for the location of the landfill site. Results revealed that 30% of the study area was identified as highly suitable, 25% as suitable, and 45% as unsuitable. The selection of the final landfill site, however, requires further field research.

  4. Utilizations and Perceptions of Emergency Medical Services by Patients with ST-Segments Elevation Acute Myocardial Infarction in Abu Dhabi: A Multicenter Study

    PubMed Central

    Callachan, Edward Lance; Alsheikh-Ali, Alawi A.; Nair, Satish Chandrasekhar; Bruijns, Stevan; Wallis, Lee A.

    2016-01-01

    Background: Data on the use of emergency medical services (EMS) by patients with cardiac conditions in the Gulf region are scarce, and prior studies have suggested underutilization. Patient perception and knowledge of EMS care is critical to proper utilization of such services. Objectives: To estimate utilization, knowledge, and perceptions of EMS among patients with ST-elevation myocardial infarction (STEMI) in the Emirate of Abu Dhabi. Methods: We conducted a multicenter prospective study of consecutive patients admitted with STEMI in four government-operated hospitals in Abu Dhabi. Semi-structured interviews were conducted with patients to assess the rationale for choosing their prehospital mode of transport and their knowledge of EMS services. Results: Of 587 patients with STEMI (age 51 ± 11 years, male 95%), only 15% presented through EMS, and the remainder came via private transport. Over half of the participants (55%) stated that they did not know the telephone number for EMS. The most common reasons stated for not using EMS were that private transport was quicker (40%) or easier (11%). A small percentage of participants (7%) did not use EMS because they did not think their symptoms were cardiac-related or warranted an EMS call. Stated reasons for not using EMS did not significantly differ by age, gender, or primary language of the patients. Conclusions: EMS care for STEMI is grossly underutilized in Abu Dhabi. Patient knowledge and perceptions may contribute to underutilization, and public education efforts are needed to raise their perception and knowledge of EMS. PMID:27512532

  5. Contributions to a shallow aquifer study by reprocessed seismic sections from petroleum exploration surveys, eastern Abu Dhabi, United Arab Emirates

    USGS Publications Warehouse

    Woodward, D.

    1994-01-01

    The US Geological Survey, in cooperation with the National Drilling Company of Abu Dhabi, is conducting a 4-year study of the fresh and slightly saline groundwater resources of the eastern Abu Dhabi Emirate. Most of this water occurs in a shallow aquifer, generally less than 150 m deep, in the Al Ain area. A critical part of the Al Ain area coincides with a former petroleum concession area where about 2780 km of vibroseis data were collected along 94 seismic lines during 1981-1983. Field methods, acquistion parameters, and section processing were originally designed to enhance reflections expected at depths ranging from 5000 to 6000 m, and subsurface features directly associated with the shallow aquifer system were deleted from the original seismic sections. The original field tapes from the vibroseis survey were reprocessed in an attempt to extract shallow subsurface information (depths less than 550 m) for investigating the shallow aquifer. A unique sequence of reproccessing parameters was established after reviewing the results from many experimental tests. Many enhancements to the resolution of shallow seismic reflections resulted from: (1) application of a 20-Hz, low-cut filter; (2) recomputation of static corrections to a datum nearer the land surface; (3) intensive velocity analyses; and (4) near-trace muting analyses. The number, resolution, and lateral continuity of shallow reflections were greatly enhanced on the reprocessed sections, as was the delineation of shallow, major faults. Reflections on a synthetic seismogram, created from a borehole drilled to a depth of 786 m on seismic line IQS-11, matcheddprecisely with shallow reflections on the reprocessed section. The 33 reprocessed sections were instrumental in preparing a map showing the major structural features that affect the shallow aquifer system. Analysis of the map provides a better understanding of the effect of these shallow features on the regional occurrence, movement, and quality of

  6. Impact of stylolitization on diagenesis of a Lower Cretaceous carbonate reservoir from a giant oilfield, Abu Dhabi, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Paganoni, Matteo; Al Harthi, Amena; Morad, Daniel; Morad, Sadoon; Ceriani, Andrea; Mansurbeg, Howri; Al Suwaidi, Aisha; Al-Aasm, Ihsan S.; Ehrenberg, Stephen N.; Sirat, Manhal

    2016-04-01

    Bed-parallel stylolites are a widespread diagenetic feature in Lower Cretaceous limestone reservoirs, Abu Dhabi, United Arab Emirates (UAE). Diagenetic calcite, dolomite, kaolin and small amounts of pyrite, fluorite, anhydrite and sphalerite occur along and in the vicinity of the stylolites. Petrographic observations, negative δ18OVPDB, fluid inclusion microthermometry, and enrichment in 87Sr suggest that these cements have precipitated from hot basinal brines, which migrated along the stylolites and genetically related microfractures (tension gashes). Fluid migration was presumably related to lateral tectonic compression events related to the foreland basin formation. The low solubility of Al3 + in formation waters suggests that kaolin precipitation was linked to derivation of organic acids during organic matter maturation, probably in siliciclastic source rocks. The mass released from stylolitization was presumably re-precipitated as macro- and microcrystalline calcite cement in the host limestones. The flanks of the oilfield (water zone) display more frequent presence and higher amplitude of stylolites, lower porosity and permeability, higher homogenization temperatures and more radiogenic composition of carbonates compared to the crest (oil zone). This indicates that oil emplacement retards diagenesis. This study demonstrates that stylolitization plays a crucial role in fluid flow and diagenesis of carbonate reservoirs during basin evolution.

  7. Infant Feeding Practices of Emirati Women in the Rapidly Developing City of Abu Dhabi, United Arab Emirates

    PubMed Central

    Gardner, Hazel; Green, Katherine; Gardner, Andrew

    2015-01-01

    Rapid economic and cultural transition in the United Arab Emirates (UAE) has been accompanied by new challenges to public health; most notably a rapid rise in chronic disease. Breastfeeding is known to improve health outcomes in adulthood, is associated with reduced risk of developing chronic disease, and is therefore an important public health issue for this rapidly increasing population. Factors associated with infant feeding practices were examined in a cohort of 125 Emirati women and their infants, with data collected at birth and 3, 6 and 15 months postpartum by questionnaires and interviews. Participants were recruited in the Corniche Hospital, the main maternity hospital in the city of Abu Dhabi. Factors affecting the duration of breastfeeding and the introduction of complementary foods were investigated using univariate and multivariate statistics. Recommended infant feeding practices, such as exclusive breastfeeding for the first six months of life and timely introduction of appropriate complementary foods, were poorly adhered to. Factors implicated in early cessation of breastfeeding included: time to first breastfeed, mother’s education level, employment status and early introduction of complementary foods. PMID:26404348

  8. Early guenon from the late Miocene Baynunah Formation, Abu Dhabi, with implications for cercopithecoid biogeography and evolution.

    PubMed

    Gilbert, Christopher C; Bibi, Faysal; Hill, Andrew; Beech, Mark J

    2014-07-15

    A newly discovered fossil monkey (AUH 1321) from the Baynunah Formation, Emirate of Abu Dhabi, United Arab Emirates, is important in a number of distinct ways. At ∼ 6.5-8.0 Ma, it represents the earliest known member of the primate subfamily Cercopithecinae found outside of Africa, and it may also be the earliest cercopithecine in the fossil record. In addition, the fossil appears to represent the earliest member of the cercopithecine tribe Cercopithecini (guenons) to be found anywhere, adding between 2 and 3.5 million y (∼ 50-70%) to the previous first-appearance datum of the crown guenon clade. It is the only guenon--fossil or extant--known outside the continent of Africa, and it is only the second fossil monkey specimen so far found in the whole of Arabia. This discovery suggests that identifiable crown guenons extend back into the Miocene epoch, thereby refuting hypotheses that they are a recent radiation first appearing in the Pliocene or Pleistocene. Finally, the new monkey is a member of a unique fauna that had dispersed from Africa and southern Asia into Arabia by this time, suggesting that the Arabian Peninsula was a potential filter for cross-continental faunal exchange. Thus, the presence of early cercopithecines on the Arabian Peninsula during the late Miocene reinforces the probability of a cercopithecoid dispersal route out of Africa through southwest Asia before Messinian dispersal routes over the Mediterranean Basin or Straits of Gibraltar. PMID:24982136

  9. Early guenon from the late Miocene Baynunah Formation, Abu Dhabi, with implications for cercopithecoid biogeography and evolution

    PubMed Central

    Gilbert, Christopher C.; Bibi, Faysal; Hill, Andrew; Beech, Mark J.

    2014-01-01

    A newly discovered fossil monkey (AUH 1321) from the Baynunah Formation, Emirate of Abu Dhabi, United Arab Emirates, is important in a number of distinct ways. At ∼6.5–8.0 Ma, it represents the earliest known member of the primate subfamily Cercopithecinae found outside of Africa, and it may also be the earliest cercopithecine in the fossil record. In addition, the fossil appears to represent the earliest member of the cercopithecine tribe Cercopithecini (guenons) to be found anywhere, adding between 2 and 3.5 million y (∼50–70%) to the previous first-appearance datum of the crown guenon clade. It is the only guenon—fossil or extant—known outside the continent of Africa, and it is only the second fossil monkey specimen so far found in the whole of Arabia. This discovery suggests that identifiable crown guenons extend back into the Miocene epoch, thereby refuting hypotheses that they are a recent radiation first appearing in the Pliocene or Pleistocene. Finally, the new monkey is a member of a unique fauna that had dispersed from Africa and southern Asia into Arabia by this time, suggesting that the Arabian Peninsula was a potential filter for cross-continental faunal exchange. Thus, the presence of early cercopithecines on the Arabian Peninsula during the late Miocene reinforces the probability of a cercopithecoid dispersal route out of Africa through southwest Asia before Messinian dispersal routes over the Mediterranean Basin or Straits of Gibraltar. PMID:24982136

  10. Infant Feeding Practices of Emirati Women in the Rapidly Developing City of Abu Dhabi, United Arab Emirates.

    PubMed

    Gardner, Hazel; Green, Katherine; Gardner, Andrew

    2015-09-01

    Rapid economic and cultural transition in the United Arab Emirates (UAE) has been accompanied by new challenges to public health; most notably a rapid rise in chronic disease. Breastfeeding is known to improve health outcomes in adulthood, is associated with reduced risk of developing chronic disease, and is therefore an important public health issue for this rapidly increasing population. Factors associated with infant feeding practices were examined in a cohort of 125 Emirati women and their infants, with data collected at birth and 3, 6 and 15 months postpartum by questionnaires and interviews. Participants were recruited in the Corniche Hospital, the main maternity hospital in the city of Abu Dhabi. Factors affecting the duration of breastfeeding and the introduction of complementary foods were investigated using univariate and multivariate statistics. Recommended infant feeding practices, such as exclusive breastfeeding for the first six months of life and timely introduction of appropriate complementary foods, were poorly adhered to. Factors implicated in early cessation of breastfeeding included: time to first breastfeed, mother's education level, employment status and early introduction of complementary foods. PMID:26404348

  11. Estimation of seismic attenuation in carbonate rocks using three different methods: Application on VSP data from Abu Dhabi oilfield

    NASA Astrophysics Data System (ADS)

    Bouchaala, F.; Ali, M. Y.; Matsushima, J.

    2016-06-01

    In this study a relationship between the seismic wavelength and the scale of heterogeneity in the propagating medium has been examined. The relationship estimates the size of heterogeneity that significantly affects the wave propagation at a specific frequency, and enables a decrease in the calculation time of wave scattering estimation. The relationship was applied in analyzing synthetic and Vertical Seismic Profiling (VSP) data obtained from an onshore oilfield in the Emirate of Abu Dhabi, United Arab Emirates. Prior to estimation of the attenuation, a robust processing workflow was applied to both synthetic and recorded data to increase the Signal-to-Noise Ratio (SNR). Two conventional methods of spectral ratio and centroid frequency shift methods were applied to estimate the attenuation from the extracted seismic waveforms in addition to a new method based on seismic interferometry. The attenuation profiles derived from the three approaches demonstrated similar variation, however the interferometry method resulted in greater depth resolution, differences in attenuation magnitude. Furthermore, the attenuation profiles revealed significant contribution of scattering on seismic wave attenuation. The results obtained from the seismic interferometry method revealed estimated scattering attenuation ranges from 0 to 0.1 and estimated intrinsic attenuation can reach 0.2. The subsurface of the studied zones is known to be highly porous and permeable, which suggest that the mechanism of the intrinsic attenuation is probably the interactions between pore fluids and solids.

  12. Perceptions and Attitudes towards Medical Research in the United Arab Emirates: Results from the Abu Dhabi Cohort Study (ADCS) Focus Group Discussions

    PubMed Central

    El Obaid, Yusra; Al Hamiz, Aisha; Abdulle, Abdishakur; Hayes, Richard B.; Sherman, Scott; Ali, Raghib

    2016-01-01

    Background In developing medical research, particularly in regions where medical research is largely unfamiliar, it is important to understand public perceptions and attitudes towards medical research. In preparation for starting the first cohort study in the United Arab Emirates, the Abu Dhabi Cohort Study (ADCS), we sought to understand how we could improve the quality of the research process for participants and increase public trust and awareness of research. Methods We conducted six focus groups (FG), consisting of Emirati men and women aged above 18 years to resemble the target population for the ADCS. Sampling was purposive and convenient. Data collection was an iterative process until saturation was reached with no new themes identified. Text from each FG was analyzed separately by identifying emerging issues and organizing related concepts into categories or themes. A coding tree was developed, consisting of the main concepts, themes, subthemes and corresponding quotes. Both themes and main ideas were identified using inductive analysis. Results Forty-two participants enrolled at 3 academic centers (New York University Abu Dhabi, UAE University, Zayed University) and the Abu Dhabi blood bank. Focus group participants described lack of awareness of research as a challenge to participation in clinical research studies. Altruism, personal relevance of the research, and the use of role models were commonly identified motivators. Participants were generally satisfied with the informed consent process for the ADCS, but would be disappointed if not provided test results or study outcomes. Fear of a breach in confidentiality was a frequently expressed concern. Conclusions Participants join research studies for varied, complex reasons, notably altruism and personal relevance. Based on these insights, we propose specific actions to enhance participant recruitment, retention and satisfaction in the ADCS. We identified opportunities to improve the research experience

  13. Antibiotic susceptibility profile of Aeromonas spp. isolates from food in Abu Dhabi, United Arab Emirates.

    PubMed

    Awan, Mohammad Bashir; Maqbool, Ahmed; Bari, Abdul; Krovacek, Karel

    2009-01-01

    A total of 57 Aeromonas isolates from food samples such as fresh and frozen chicken, game birds, pasteurized milk, baby food, bakery products, fruit and vegetables, fish, and water from Abu Dahbi, UAE were investigated for antibiotic susceptibility profile. Most strains were resistant to penicillins (ticarcillin, mezlocillin, oxacillin, piperacillin), sulfamethoxazole, trimethoprim and macrolides (erythromycin, vancomycin, clindamycin) but sensitive to tetracycline, chloramphenicol, nitrofurantoin, aminoglycosides (amikacin, gentamicin, tobramycin), cephalosporins (cefuroxime, ceftrioxone, cefazolin, cephalexin, cephalothin, cefoxitin, cefotaxime), quinolone (ciprofloxacin), colistin sulphate and SXT (trimethoprim-sulfamethoxazole). On the other hand, many antibiotics showed excellent inhibitory activity (>75% strains were sensitive to them) against all the strains tested. These include cefuroxime, ceftrioxone, ciprofloxacin, colistin, amikacin, gentamicin, tetracycline, chloramphenicol, nitrofurantoin, cefotaxime and tobramycin. In conclusion, the results show a detailed pattern of sensitivity of the various Aeromonas spp. isolates to a variety of antibiotics and provide useful information in the context of selective isolation and phenotypic identification of the aeromonads from food. PMID:19382665

  14. Aerosol Direct Radiative Forcing and Forcing Efficiencies at Surface from the shortwave Irradiance Measurements in Abu Dhabi, UAE

    NASA Astrophysics Data System (ADS)

    Beegum S, N.; Ben Romdhane, H.; Ghedira, H.

    2013-12-01

    Atmospheric aerosols are known to affect the radiation balance of the Earth-Atmospheric system directly by scattering and absorbing the solar and terrestrial radiation, and indirectly by affecting the lifetime and albedo of the clouds. Continuous and simultaneous measurements of short wave global irradiance in combination with synchronous spectral aerosol optical depth (AOD) measurements (from 340 nm to 1640 nm in 8 channels), for a period of 1 year from June 2012 to May 2013, were used for the determination of the surface direct aerosol radiative forcing and forcing efficiencies under cloud free conditions in Abu Dhabi (24.42°N, 54.61o E, 7m MSL), a coastal location in United Arab Emirates (UAE) in the Arabian Peninsula. The Rotating Shadow band Pyranometer (RSP, LI-COR) was used for the irradiance measurements (in the spectral region 400-1100 nm), whereas the AOD measurements were carried out using CIMEL Sunphotometer (CE 318-2, under AERONET program). The differential method, which is neither sensitive to calibration uncertainties nor model assumptions, has been employed for estimating forcing efficiencies from the changes in the measured fluxes. The forcing efficiency, which quantifies the net change in irradiance per unit change in AOD, is an appropriate parameter for the characterization of the aerosol radiative effects even if the microphysical and optical properties of the aerosols are not completely understood. The corresponding forcing values were estimated from the forcing efficiencies. The estimated radiative forcing and forcing efficiencies exhibited strong monthly variations. The forcing efficiencies (absolute magnitudes) were highest during March, and showed continuous decrease thereafter to reach the lowest value during September. In contrast, the forcing followed a slightly different pattern of variability, with the highest solar dimming during April ( -60 W m-2) and the minimum during February ( -20 W m-2). The results indicate that the aerosol

  15. "That's Not the Way I Was Taught Science at School!" How Preservice Primary Teachers in Abu Dhabi, United Arab Emirates Are Affected by Their Own Schooling Experiences

    ERIC Educational Resources Information Center

    Dickson, M.; Kadbey, H.

    2014-01-01

    Government schools in Abu Dhabi, as part of widescale educational reforms undertaken in the whole of the United Arab Emirates (UAE), have undergone significant change since 2007 across cycles and across subjects including science. Science had been taught historically in the UAE using fairly traditional "chalk and talk", teacher-centered…

  16. Understanding Intrabasinal Organic Carbon Records: A New Carbon Isotope Record for the Early Cretaceous Abu Dhabi, UAE

    NASA Astrophysics Data System (ADS)

    Al-Suwaidi, A. H.

    2014-12-01

    The Aptian-Albian (~125-100 Ma, Early Cretaceous) is considered to be an interval of elevated greenhouse gases, intensified hydrologic cycle, limited polar ice, and elevated high latitude temperatures, with evidence for Oceanic Anoxic Events (OAE) as recorded by organic matter and carbonate δ13C perturbations in both the marine and continental realm (Jenkyns et al., 2004; Poulsen, 2004; Robinson & Hesselbo, 2004 and Ufnar et al., 2004). In this study four cores from Aptian­-Albian marine sediments from a single offshore basin in Abu Dhabi, UAE were examined petrographically and samples were collected to generate a high resolution organic carbon δ13C chemostratigraphic profile. The cores represent sediments from the Early Cretaceous upper most Thamama and lowermost Wasia Group and represent interbedded shale and limestone units from the Arabian Shelf. Three of the cores, cores A­-C, show a 3‰ negative excursion in δ13Corg with values of -28‰ occurring with a concurrent increase in organic carbon, likely indicative of Aptian OAE 1a. These cores also show a transition from more oxic to euxinic waters as recorded in the pyrite framboid mean diameter. The remaining core, D, shows relatively isotopically light average δ13Corg values of -26‰, with an intervening positive isotope excursion and values of -23‰, and may represent a different event either earlier or later in the sequence, but due to limited biostratigraphic data could not easily be correlated using C-Isotopes alone with the other three cores. The four cores come from different localities within a single basin and highlight issues pertaining to correlating cores across a single basin for the same time interval, as well as variability in organic matter burial and oxygenation within a single basin, and may provide a useful case study specifically related to separating regional signals from global carbon isotope signals for the Aptian-Albian, and understanding how ancient Mesozoic basins are affected

  17. Converting the organic fraction of solid waste from the city of Abu Dhabi to valuable products via dark fermentation--Economic and energy assessment.

    PubMed

    Bonk, Fabian; Bastidas-Oyanedel, Juan-Rodrigo; Schmidt, Jens Ejbye

    2015-06-01

    Landfilling the organic fraction of municipal solid waste (OFMSW) leads to greenhouse gas emissions and loss of valuable resources. Sustainable and cost efficient solutions need to be developed to solve this problem. This study evaluates the feasibility of using dark fermentation (DF) to convert the OFMSW to volatile fatty acids (VFAs), fertilizer and H2. The VFAs in the DF effluent can be used directly as substrate for subsequent bioprocesses or purified from the effluent for industrial use. DF of the OFMSW in Abu Dhabi will be economically sustainable once VFA purification can be accomplished on large scale for less than 15USD/m(3)(effluent). With a VFA minimum selling price of 330 USD/tCOD, DF provides a competitive carbon source to sugar. Furthermore, DF is likely to use less energy than conventional processes that produce VFAs, fertilizer and H2. This makes DF of OFMSW a promising waste treatment technology and biorefinery platform. PMID:25840736

  18. Lithology, mineral assemblages and microbial fingerprints of the evaporite-carbonate sediments of the coastal sabkha of Abu Dhabi and their extraterrestrial implications

    NASA Astrophysics Data System (ADS)

    Sadooni, Fadhil N.; Howari, Fares; Edwards, Howell G. M.; El-Saiy, Ayman

    2010-07-01

    Deep-core and surface samples collected from the coastal sabkha of Abu Dhabi were subjected to a multi-proxy study, including petrographic, geochemical and spectroscopic analyses. The sediments studied are composed of biochemical carbonate-evaporite mineral suites, such as calcite, dolomite, aragonite and gypsum, as well as clastic minerals, such as quartz, feldspar and serpentine. These sediments were also strongly influenced by microbial activities as reflected by the presence of cyanobacterial mats, boring, gas bubble structures, pustular and other macro and micro textures. A combination of marine, fluvial, aeolian, and groundwater processes shaped the geomorphology of the area and led to the formation of such mineral suites, as well as their microbial contents. Data collected from Mars indicate that its surface regolith contains sandstone composed of siliciclastic basaltic debris, as well as carbonate (e.g. magnesite) and evaporite (e.g. jarosite and relics of gypsum) mineral assemblages. Additional data suggest the presence of geomorphic features, characteristic of an arid climate, such as sand dunes and desert varnish. The hydrological model for the Late Noachian-Hesperian period of the plant proposed the existence of a surficial layer containing endolithic and stromatolitic cyanobacterial lamina. The combination of the coastal sabkha of Abu Dhabi with its carbonate-evaporite mineral suites, the neighbouring sand dune fields of the Empty Quarter Desert and the basaltic sediments resulted from weathering the ophiolitic Northern Oman Mountains to form a candidate terrestrial geologic province that may explain the mineral association of Mars and its potential biosignatures. The lithological features and the mineral association of the sabkha can be recognized by the present day detection equipment used on Mars, and even if their biosignatures are degraded, their existence may be inferred from these features.

  19. Converting the organic fraction of solid waste from the city of Abu Dhabi to valuable products via dark fermentation – Economic and energy assessment

    SciTech Connect

    Bonk, Fabian Bastidas-Oyanedel, Juan-Rodrigo Schmidt, Jens Ejbye

    2015-06-15

    Graphical abstract: Display Omitted - Highlights: • The cost and energy demand for dark fermentation using OFMSW were established. • Dark fermentation using OFMSW can produce a carbon source for bioprocesses of about 330 USD/t{sub COD}. • A maximum purification cost of VFAs from dark fermentation using OFMSW was established to 15 USD/m{sup 3}. • Replacing fossil fuel based products by dark fermentation will probably lead to net energy savings. - Abstract: Landfilling the organic fraction of municipal solid waste (OFMSW) leads to greenhouse gas emissions and loss of valuable resources. Sustainable and cost efficient solutions need to be developed to solve this problem. This study evaluates the feasibility of using dark fermentation (DF) to convert the OFMSW to volatile fatty acids (VFAs), fertilizer and H{sub 2}. The VFAs in the DF effluent can be used directly as substrate for subsequent bioprocesses or purified from the effluent for industrial use. DF of the OFMSW in Abu Dhabi will be economically sustainable once VFA purification can be accomplished on large scale for less than 15 USD/m{sup 3}{sub effluent}. With a VFA minimum selling price of 330 USD/t{sub COD}, DF provides a competitive carbon source to sugar. Furthermore, DF is likely to use less energy than conventional processes that produce VFAs, fertilizer and H{sub 2}. This makes DF of OFMSW a promising waste treatment technology and biorefinery platform.

  20. Topographic control of mat-surface structures evolution: Examples from modern evaporitic carbonate (Abu Dhabi) and evaporitic siliciclastic (Tunisia) tidal flats.

    NASA Astrophysics Data System (ADS)

    Hafid Bouougri, El; Porada, Hubertus

    2010-05-01

    In terms of optimal light utilization, mat surfaces ideally are flat. In nature, however, flat mat surfaces are observed rarely or in restricted patches only. Rather they are shaped by a variety of linear and subcircular to irregular protrusions at various scales, including overgrown upturned crack margins, bulges (‘petees'), domes (‘blisters' and ‘pustules'), reticulate networks with tufts and pinnacles etc. These features are so characteristic that ‘mat types' have been established according to their prevalence, e.g., film, flat, smooth, crinkle, blister, tufted, cinder, mammilate, pustular and polygonal mats (Kendall and Skipwith, 1969; Logan et al., 1974). Responsible for the development of such mat surface features are environmental (physical and chemical) factors and, in reaction, the opportunistic growth behaviour of the participating bacterial taxa. Theoretically, a ‘juvenile' mat may be assumed as being flat, evolving into various forms with typical surface morphologies according to environmental impacts and respective bacterial reactions. Observations in the Abu Dhabi evaporitic carbonate tidal flats and Tunisian evaporitic siliciclastic tidal flats demonstrate that topography plays a fundamental role, both on the large scale of the tidal flat and on the small scale of mat surface morphology. It controls, together with related factors like, e.g., frequency of tidal flooding; duration of water cover; frequency and duration of subaerial exposure, the spatial distribution and the temporal evolution of mat surface structures. On the tidal flat scale, topographic differences result a priori from its seaward gradient and may arise additionally from physical processes which may modify the substrate surface and produce in the intertidal and lower supratidal zones narrow creeks and shallow depressions meandering perpendicular to the slope. Within a wide tidal flat without local topographic changes in the tidal zones, mat surface structures display a

  1. Prevalence of Undiagnosed Diabetes and Quality of Care in Diabetic Patients Followed at Primary and Tertiary Clinics in Abu Dhabi, United Arab Emirates

    PubMed Central

    Saadi, Hussein; Al-Kaabi, Jumaa; Benbarka, Mahmoud; Khalili, Ali; Almahmeed, Wael; Nagelkerke, Nicolaas; Abdel-Wareth, Laila; Al Essa, Awad; Yasin, Javed; Al-Dabbagh, Bayan; Kazam, Elsadig

    2010-01-01

    AIMS: To investigate the prevalence of undiagnosed type 2 diabetes (T2D) at primary health care (PHC) clinics, and to assess the quality of care of diabetic patients followed at a tertiary hospital diabetes center in Abu Dhabi, United Arab Emirates (UAE). METHODS: Between May 2009 and October 2010, adult patients attending two PHC clinics, and adult diabetic patients attending the diabetes center, were invited to participate in the study. After overnight fast, participants returned for interview and laboratory tests. Undiagnosed T2D was defined by FPG ≥ 7.0 mmol/l or HbA1c ≥ 6.5%. Quality of care was assessed by reported care practices and achievement of internationally recognized targets. RESULTS: Out of 239 patients at PHC clinics without history of T2D, 14.6% had undiagnosed T2D, and 31% had increased risk of diabetes (FPG 5.6-7.0 mmol/l or HbA1c 5.7-6.5%). The independent predictors of undiagnosed T2D were age (adjusted OR per year 1.07, 95% CI 1.04-1.11, p < 0.001) and BMI ≥ 25 (adjusted OR 4.2, 95% CI 0.91-19.7, p = 0.033). Amongst all 275 diagnosed T2D patients, including those attending PHC clinics and those followed at the diabetes center, it was found that 40.1% followed dietary recommendations, 12% reported visiting a diabetes educator, 28.2% walked for exercise, and 13.5% attained recognized targets of HbA1c < 7%, blood pressure < 130/80 mmHg, and LDL cholesterol < 2.6 mmol/l. CONCLUSIONS: Almost half of the adult patients attending PHC clinics had undiagnosed T2D, or increased diabetes risk. Care practices, and achievement of treatment targets, were suboptimal. PMID:21713317

  2. Petrophysical analysis of geophysical logs of the National Drilling Company-U.S. Geological Survey ground-water research project for Abu Dhabi Emirate, United Arab Emirates

    USGS Publications Warehouse

    Jorgensen, Donald G.; Petricola, Mario

    1994-01-01

    A program of borehole-geophysical logging was implemented to supply geologic and geohydrologic information for a regional ground-water investigation of Abu Dhabi Emirate. Analysis of geophysical logs was essential to provide information on geohydrologic properties because drill cuttings were not always adequate to define lithologic boundaries. The standard suite of logs obtained at most project test holes consisted of caliper, spontaneous potential, gamma ray, dual induction, microresistivity, compensated neutron, compensated density, and compensated sonic. Ophiolitic detritus from the nearby Oman Mountains has unusual petrophysical properties that complicated the interpretation of geophysical logs. The density of coarse ophiolitic detritus is typically greater than 3.0 grams per cubic centimeter, porosity values are large, often exceeding 45 percent, and the clay fraction included unusual clays, such as lizardite. Neither the spontaneous-potential log nor the natural gamma-ray log were useable clay indicators. Because intrinsic permeability is a function of clay content, additional research in determining clay content was critical. A research program of geophysical logging was conducted to determine the petrophysical properties of the shallow subsurface formations. The logging included spectral-gamma and thermal-decay-time logs. These logs, along with the standard geophysical logs, were correlated to mineralogy and whole-rock chemistry as determined from sidewall cores. Thus, interpretation of lithology and fluids was accomplished. Permeability and specific yield were calculated from geophysical-log data and correlated to results from an aquifer test. On the basis of results from the research logging, a method of lithologic and water-resistivity interpretation was developed for the test holes at which the standard suite of logs were obtained. In addition, a computer program was developed to assist in the analysis of log data. Geohydrologic properties were

  3. Improved characterization of local seismicity using the Dubai Seismic Network, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Al Khatibi, Eman; Abou Elenean, K. M.; Megahed, A. S.; El-Hussain, I.

    2014-08-01

    In April 2006, Dubai Municipality established a broadband seismological network in Dubai Emirate, United Arab Emirates (UAE). This network was the first seismic network in UAE and consists of four remote seismic stations to observe local and regional seismic activity that may have an effect on Dubai Emirate and the surrounding areas. The network exchanges real-time data with the National Center of Meteorology and Seismology in Abu Dhabi, the Earthquake Monitoring Center in Oman and imports in real-time data from few Global Seismic Network stations, which increases the aperture of the network. In April 2012, Dubai Municipality installed an additional five free-field strong motion stations inside the urban area to estimate and publish real-time ShakeMaps for public and decision makers. Although the local seismic activity from April 2006 to June 2013 reflects low seismic activity with the Emirate, it indicates active tectonics in the relatively aseismic northern Oman Mountains region. A few inland clusters of micro-to-small earthquakes have been identified with the new network. A clear cluster of small-to-moderate earthquakes took place in the eastern part of UAE to the east of Masafi, while two clusters of micro-to-small earthquakes took place at Wadi Nazwa and northern Huwaylat. Focal mechanisms of few well recorded earthquakes in this region indicate normal faulting, generally trending NE in parallel to the transition shear zone between the collision at Zagros and the subduction at the Makran zone.

  4. Biotically constrained palaeoenvironmental conditions of a mid-Holocene intertidal lagoon on the southern shore of the Arabian Gulf: evidence associated with a whale skeleton at Musaffah, Abu Dhabi, UAE

    NASA Astrophysics Data System (ADS)

    Stewart, J. R.; Aspinall, S.; Beech, M.; Fenberg, P.; Hellyer, P.; Larkin, N.; Lokier, S. W.; Marx, F. G.; Meyer, M.; Miller, R.; Rainbow, P. S.; Taylor, J. D.; Whittaker, J. E.; Al-Mehsin, K.; Strohmenger, C. J.

    2011-12-01

    Whale remains (a left and right mandible, scapula, humerus and fragmentary radius and ulna as well as parts of the cranium and rostrum) belonging to a probable humpback whale ( Megaptera cf. novaeangliae) were found in the well-described sabkha sequence exposed in the Musaffah Industrial Channel, Abu Dhabi, United Arab Emirates. More precisely, the whale remains were found in a series of sediments representing a range of lagoonal facies. The sediments surrounding the whale bones were age-dated at approximately 5200 14C yrs BP and are therefore interpreted to correspond to the previously documented late Flandrian sea-level peak, preceding a fall in sea-level which culminated in the supratidal sabkha overprint of the carbonates. Associated with the whale remains is an assemblage of molluscs, foraminifera and ostracods. Together with the inferred presence of sea grass and algae, these facies are interpreted to indicate a very shallow subtidal to intertidal lagoonal environment. Cirripede remains found associated with the skeleton were identified as those of the whale barnacle Coronula diadema and hence had their origins with the whale. Significantly, the low species diversity of microfossils suggests that higher salinities existed in the mid-Holocene lagoon than are present in modern counterparts. This is here inferred to be related to the onset of continental aridity in Arabia during the mid-Holocene.

  5. Oil and gas developments in Middle East in 1981

    SciTech Connect

    Hemer, D.O; Mason, J.F.; Hatch, G.C.

    1982-11-01

    Petroleum production in Middle East countries during 1981 totaled 5,741,096,000 bbl, or an average rate of 15,729,030 BOPD, down 14.9% from 1980. Increases were in Oman, Dubai, and Turkey. Significant decreases occurred in Iraq, Iran, Kuwait, Divided Neutral Zone, Qatar, and Abu Dhabi. New discoveries were made in Oman, Saudi Arabia, and Abu Dhabi.

  6. Dubai gas lift automation

    SciTech Connect

    Coltharp, E.D.; Khokhar, M.

    1984-09-01

    Dubai Petroleum Company has recently installed a computer gas lift surveillance and gas lift gas injection control system in the Fateh and S.W. Fateh Fields located in the southern part of the Arabian Gulf. This system is the fourth generation of the computer control system installed in California in 1971 by Conoco, Inc. This paper describes the advantages and problems in this system to monitor and control the gas lift operation of 116 wells through 30 intelligent remote terminal units (RTU). In addition, this system monitors the condition of critical operational

  7. Dubai: where oil makes the difference

    SciTech Connect

    Waghorn, R.

    1985-01-01

    A mutually beneficial partnership between Conoco and the Sheikhdom of Dubai has continued to grow since oil was discovered in 1966. The Ruling Family has coupled economic development with liberalism, stressing diversification of industry and trade. Strategically located on the Arabian Gulf, Dubai serves as a major port of entry to the Arabian peninsula. Petroleum activity includes the world's largest man-made port, support operations and computerized warehousing for four offshore fields. Dubai has used its oil revenues to modernize. An international workforce represents 28 nationalities. 1 figure.

  8. Oil and gas developments in Middle East in 1982

    SciTech Connect

    Hemer, D.O.; Hatch, G.C.

    1983-10-01

    Petroleum production in Middle East countries during 1982 totaled 4,499,464,000 bbl (an average rate of 12,162,915 BOPD), down 21.5% from 1981. Increases were in Iraq, Iran, and Oman. Significant decreases occurred in Kuwait, Divided Neutral Zone, Saudi Arabia, Qatar, and Abu Dhabi. New discoveries were reported in Oman, Syria, Abu Dhabi, Dubai, Iran, and Saudi Arabia.

  9. Psychiatric Services in Dubai (A Short Descriptive Report)

    ERIC Educational Resources Information Center

    Al Mualla, Saoud

    2011-01-01

    The paper gives an account of psychiatric services in Dubai (U.A.E). It describes the unique demographic constitution of Dubai and its complex health system. It also discusses the reasons behind the primitiveness of psychiatry in comparison to other medical specialties and services, especially considering the wealth of Dubai. The paper then goes…

  10. Constraints and Subsequent Limitations to Parental Involvement in Primary Schools in Abu Dhabi: Stakeholders' Perspectives

    ERIC Educational Resources Information Center

    Hourani, Rida Blaik; Stringer, Patricia; Baker, Fiona

    2012-01-01

    The United Arab Emirates (UAE) is developing its public schools by initiating reform agendas for school improvement. High on the list of reforms is the call to increase parental involvement in schools. For this reform to work successfully, it is important to identify and examine the constraints and subsequent limitations that exist. Seven primary…

  11. Middle East Respiratory Syndrome Coronavirus during Pregnancy, Abu Dhabi, United Arab Emirates, 2013

    PubMed Central

    El Masry, Karim Medhat; Ravi, Mini; Sayed, Falak

    2016-01-01

    As of June 19, 2015, the World Health Organization had received 1,338 notifications of laboratory-confirmed infection with Middle East respiratory syndrome coronavirus (MERS-CoV). Little is known about the course of or treatment for MERS-CoV in pregnant women. We report a fatal case of MERS-CoV in a pregnant woman administered combination ribavirin–peginterferon-α therapy. PMID:26890613

  12. Vitamin D deficiency and sun avoidance among university students at Abu Dhabi, United Arab Emirates

    PubMed Central

    Al Anouti, Fatme; Thomas, Justin; Abdel-Wareth, Laila; Rajah, Jaishen; Grant, William B

    2011-01-01

    This study offers evidence that vitamin D deficiency could be a major public health burden among young Emirati adults, mostly because of sun deprivation in a sun-blessed country. This study included a random sample of 138 females and 70 males tested for serum 25-hydroxyvitamin D [25(OH)D] status. To further evaluate the predictors of vitamin D status in this population, the study examined diet, obesity and sun exposure. In summer, the mean serum 25(OH)D concentration for females was 20.9 ± 14.9 nmol/L, whereas that for males was 27.3 ± 15.7 nmol/L. Females scored significantly higher than males on the sun avoidance inventory (SAI), indicating that females avoid sun exposure to a greater extent than males, possibly explaining the lower vitamin D status. A significant negative correlation also existed between SAI and vitamin D status (Pearson's r = −0.33; p < 0.01), but no significant association was evident between vitamin D status and body mass index (Pearson's r = 0.03; p = 0.33) or low dietary intake of vitamin D-fortified foods (Pearson's r = 0.08; p = 0.13). The mean serum 25(OH)D concentration for females tested in winter was 31.3 ± 12.3 nmol/L while in the summer, it was 20.9 ± 14.9 nmol/L. This difference was statistically significant, suggesting that seasonal variation plays an important role in vitamin D status in the United Arab Emirates. Fortification of foods and drinks with vitamin D, supplementation and sensible sun exposure are important steps toward minimizing vitamin D deficiency. PMID:22259650

  13. A New Landscape: Opportunities and Pitfalls for Universities Expanding in the Persian Gulf

    ERIC Educational Resources Information Center

    DiConsiglio, John

    2009-01-01

    Dozens of universities--primarily from the United States, United Kingdom, and Australia--are eyeing the Gulf region as a largely untapped reservoir of academic potential and economic opportunity. During the last few years, UAE states like Dubai, Abu Dhabi, Qatar, and Ras al Khaymah have spent billions to entice top universities. And many colleges…

  14. English as a Medium of Instruction in the Gulf: When Students and Teachers Speak

    ERIC Educational Resources Information Center

    Belhiah, Hassan; Elhami, Maha

    2015-01-01

    This study explores the effectiveness of English as a medium of instruction (EMI) in the Arabian/Persian Gulf, with special focus on the situation in the United Arab Emirates. The study, undertaken at six universities located in major cities of Abu Dhabi, Dubai, Al Ain, Sharjah, Ajman, and Ras Al Khaimah, examines students' and teachers'…

  15. An Academic Building Boom Transforms the Persian Gulf

    ERIC Educational Resources Information Center

    Krieger, Zvika

    2008-01-01

    As the small states that line the Arabian Peninsula spend billions of petrodollars picking up luxury hotels, satellite television stations, first-class airlines, and high-tech weaponry, three of the emirates (Dubai, Abu Dhabi, and Qatar) are engaged in a high-stakes game of one-upmanship involving universities, American universities in particular.…

  16. Academic Building Boom Transforms the Persian Gulf

    ERIC Educational Resources Information Center

    Krieger, Zvika

    2008-01-01

    As the small states that line the Arabian Peninsula spend their billions of petrodollars picking up luxury hotels, first-class airlines, and high-tech weaponry, three of the emirates--Dubai, Abu Dhabi, and Qatar--have been engaged in a high-stakes game of one-upmanship involving universities, American universities in particular. Recent reports…

  17. Statistical Analysis of Refractivity in UAE

    NASA Astrophysics Data System (ADS)

    Al-Ansari, Kifah; Al-Mal, Abdulhadi Abu; Kamel, Rami

    2007-07-01

    This paper presents the results of the refractivity statistics in the UAE (United Arab Emirates) for a period of 14 years (1990-2003). Six sites have been considered using meteorological surface data (Abu Dhabi, Dubai, Sharjah, Al-Ain, Ras Al-Kaimah, and Al-Fujairah). Upper air (radiosonde) data were available at one site only, Abu Dhabi airport, which has been considered for the refractivity gradient statistics. Monthly and yearly averages are obtained for the two parameters, refractivity and refractivity gradient. Cumulative distributions are also provided.

  18. Evidence from the national health account: the case of Dubai

    PubMed Central

    Hamidi, Samer

    2014-01-01

    Introduction National health accounts (NHAs) provide useful information to aid in understanding the health care financing system. This article aims to present a profile of health system financing in Dubai using data from the NHA. We also aim to compare the provider structure of financing schemes in Dubai with those of the State of Qatar and selected Organization for Economic Cooperation and Development (OECD) countries. Methods The author analyzed secondary data published in NHAs for Dubai and Qatar, and data collected by the OECD countries and publicly available from the Statistical Office of the European Union (Eurostat), for 25 OECD countries for comparative analysis. All health financing measures used are as defined in the international System of Health Accounts (SHA). Results In Dubai, only 33% of current health expenditure (CHE) is funded by the government. However, the public sector is the main source of health funding in Qatar and most OECD countries, with an average of 79% and 72%, respectively. Households in Dubai spent about 22% of CHE, equivalent to an average US$187 per capita, ranking the highest among Gulf Cooperation Council (GCC) countries, and compared with 20% of CHE across OECD countries. Hospitals in Dubai accounted for 48% of CHE, which is much higher than Qatar (40%) and the OECD average (36%). Conclusion The Dubai health care financing system differs substantially from that in OECD countries, as it is more private oriented. The findings point to several potential opportunities for growth and improvement. Policy areas that may be addressed using the information presented in this article are broad and include the following: shift from hospital care to ambulatory and day care, sustainability of health finance, shift the cost of health care to the private sector, introduce cost-containment measures, revise payment systems for health providers, and produce subnational accounts for non-communicable diseases. More investment in the translation of

  19. Middle East: Iran isn't missed much

    SciTech Connect

    Not Available

    1980-08-15

    A concerted effort to further develop productive capacity is evident in most Middle Eastern Countries, through exploration, field development, and secondary recovery. Saudi Arabia, Iraq, and Abu Dhabi all plan expanded petroleum industry programs in 1980. Oil production in Saudi Arabia through the first one-half of 1980 averaged 9.5 million bpd, and the Saudis are proceeding with the large-scale associated gas utilization and industrialization program. Iraq's near-term interest is in development of the Majnoon Discovery. Abu Dhabi is continuing efforts to complete development of a giant offshore field and finalize an onshore/offshore associated gas utilization facility. Only Iran and Kuwait are expected to be relatively inactive in petroleum programs during the remainder of 1980. Individual country reports are presented for Saudi Arabia, Iraq, Abu Dhabi, Dubai, Iran, Kuwait, the Divided Neutral Zone, Qatar, Oman, Bahrain, Syria, Turkey, Israel, Jordan, South Yemen, and Yemen Arab Republic.

  20. Lived Experiences of Female Undergraduate Students, at a Nursing College in Abu Dhabi, about Nursing as a Profession

    ERIC Educational Resources Information Center

    Hantash, Dania Abu; Van Belkum, Corrien

    2016-01-01

    Aim: To explore the lived experiences of female undergraduate nursing students about nursing as a profession and the circumstances that have influenced their experience. Introduction: Nursing as a profession is a relatively new practice, and thus in the developmental stage, in the UAE. The number of national students (Emirati) who enrol in the…

  1. Crimes of obedience: "groupthink" at abu ghraib.

    PubMed

    Post, Jerrold M; Panis, Lara K

    2011-01-01

    Clear evidence of authorization at the highest levels belies administration statements to the effect that the torture at Abu Ghraib was an aberration and simply unauthorized actions by rogue soldiers. The administration reflected a "group mind," demonstrating many qualities of "groupthink." Whatever was necessary, including torture and violation of the Geneva accords, the system in effect authorized, because of the perceived danger to the system and the desperate requirement to get the information out of "them" by whatever means necessary, information that could save lives. The sanctioned violence demonstrated the qualities identified by Kelman and Hamilton (1989) in their study of the Mylai massacre as characteristic of sanctioned massacres: authorization, routinization, and dehumanization. It would seem that officials and participants exhibited all of these characteristics in the decision to conduct extreme interrogation on the "unlawful combatants" imprisoned at Abu Ghraib. PMID:21244200

  2. Tectonic evolution of Abu Gharadig basin

    SciTech Connect

    Meshref, W.M.; Beleity, A.E.H.; Hammouda, H.; Kamel, M.

    1988-08-01

    The Abu Gharadig basin, northwestern desert of Egypt, is considered the most petroliferous basin in the Western Desert as far as hydrocarbon production and potential. The basin is believed to be growing and developing throughout geologic time. Aeromagnteic data and subsurface information, derived from a set of isopach maps from wells including complete sections only, revealed that the Abu Gharadig basin was subjected to different tectonic events that resulted in different tectonic trends. These trends include (1) north-south to north-northwest-south-southeast of Precambrian age, (2) east-west (Y-trends) of Paleozoic to Jurassic age, (3) west-northwest (R-trends) of Late Jurassic to Early Cretaceous, and (4) east-northeast (P-trends) of Late Cretaceous to Eocene age. The previously mentioned tectonic trends can be explained by a convergent wrench model that affected northern Egypt.

  3. Application of queuing model in Dubai's busiest megaplex

    NASA Astrophysics Data System (ADS)

    Bhagchandani, Maneesha; Bajpai, Priti

    2013-09-01

    This paper provides a study and analysis of the extremely busy booking counters at the Megaplex in Dubai using the queuing model and simulation. Dubai is an emirate in UAE with a multicultural population. Majority of the population in Dubai is foreign born. Cinema is one of the major forms of entertainment. There are more than 13 megaplexes each with a number of screens ranging from 3 to 22. They screen movies in English, Arabic, Hindi and other languages. It has been observed that during the weekends megaplexes attract a large number of crowd resulting in long queues at the booking counters. One of the busiest megaplex was selected for the study. Queuing theory satisfies the model when tested in real time situation. The concepts of arrival rate, service rate, utilization rate, waiting time in the system, average number of people in the queue, using Little's Theorem and M/M/s queuing model along with simulation software have been used to suggest an empirical solution. The aim of the paper is twofold-To assess the present situation at the Megaplex and give recommendations to optimize the use of booking counters.

  4. Petroleum developments in Middle East countries in 1979

    SciTech Connect

    Hemer, D.O.; Mason, J.F.; Hatch, G.C.

    1980-11-01

    Petroleum production in Middle East countries in 1979 totaled 7,779,619,000 bbl at an average rate of 21,314,024 b/d, up 0.4% from 1978. Principal increases were in Iraq, Kuwait, Divided Neutral Zone, and Saudi Arabia. Significant new discoveries were made in Saudi Arabia, Oman, and Abu Dhabi. New areas were explored in Oman, Syria, offshore South Yemen, Dubai, and Qatar.

  5. Middle East: Output expansions boost drilling

    SciTech Connect

    1996-08-01

    Iraqi exports may return to the market in limited fashion, but none of the region`s producers seems particularly concerned. They believe that global oil demand is rising fast enough to justify their additions to productive capacity. The paper discusses exploration, drilling and development, and production in Saudi Arabia, Kuwait, the Neutral Zone, Abu Dhabi, Dubai, Oman, Iran, Iraq, Yemen, Qatar, Syria, Turkey, and Sharjah. The paper also briefly mentions activities in Bahrain, Israel, Jordan, and Ras al Khaimah.

  6. Somebody better find some rigs

    SciTech Connect

    1997-08-01

    The paper discusses the outlook for the gas and oil industries of the Middle East. Field development projects abound, as the larger exporting nations pursue ambitious policies of production expansion. However, their plans may be hampered by the growing worldwide shortage of rigs. Separate evaluations are given for Saudi Arabia, Kuwait, Neutral Zone, Abu Dhabi, Iran, Iraq, Qatar, Yemen, Syria, Dubai, Turkey, Sharjah, and briefly for Bahrain, Israel, Jordan, UAE-Ajman, and UAE-Ras al-Khaimah.

  7. Effect of Population Growths on Water Resources in Dubai Emirate, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Al-Nuaimi, Hind S.; Murad, Ahmed A.

    The Emirate of Dubai is situated to the north of the United Arab Emirates on the Arabian Gulf. Due to its political stability and strong economy, people are continuing to immigrate to Dubai and this will enhance the stress on water resources. Therefore, demands for water will increase significantly in Dubai. The scarcity of water resources in Dubai is evident. The total production of water in the Dubai has increased to 61,478 million gallons in 2004. About 58,808 million gallons has been produced from the desalination plants in 2004. The production of freshwater from the main aquifers is about 2763 and 2655 million gallons for the years 2003 and 2004, respectively. The reduction of groundwater in 2004 may be ascribed to the low amount of rainfall and to the decreasing capacity of the aquifers. Treated wastewater is another source for water whose quantity was increased from 72 m3 to about 107 m3 in 2000 and 2004, respectively. The increase in water production in Dubai to meet the demand corresponds to population growth and this might be attributed to the political stability and strong economy. Moreover, major problems related to the water resources have appeared and affected the availability of freshwater in Dubai. These problems include: lowering water level and groundwater deterioration. This paper is aimed to assess the impacts of population growth on water resources in Dubai.

  8. 77 FR 5291 - The Designation of Monir Chouka, also Known as Mounir Chouka, Also Known as Abu Adam, Also Known...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... Germany, also Known as Abu Adam aus Deutschland, as a Specially Designated Global Terrorist Pursuant to... Monir Chouka, also known as Mounir Chouka, also known as Abu Adam from Germany, also known as Abu...

  9. Earthshots: Satellite images of environmental change – Dubai, United Arab Emirates

    USGS Publications Warehouse

    Adamson, Thomas

    2016-01-01

    In the first image of this series, desert fills much of the image. As Dubai expands, roads, buildings, and irrigated fields spread out over the desert. But the most prominent project in Dubai, and an impressive engineering feat, is the artificial islands built off its coast. The islands were built from sand dredged from the sea floor. Rock breakwaters protect them from erosion. These Landsat images show the rapid and impressive development of these islands.

  10. New cathodic protection system design for dubai platforms

    SciTech Connect

    Evans, S.

    1985-03-01

    New sacrificial anode protection criteria that were developed and tested by the Dubai Petroleum Company (DPC) have resulted in a 40 percent decrease in anode weight as compared to that required by conventionally accepted design. Derivation of the criteria are based on an analyses of extensive field results of potential surveys of seven DPC platforms that had conventional sacrificial anode protection systems. It was found that an initial platform current density of 310 + or - 20 milliampers per square meter of area exposed to seawater, resulted in polarization of the platform to -1 volt with respect to the silversilver chloride reference electrode. As a consequence of this high initial polarization, the electric current requirement for protection is significantly reduced. The new criteria were used in the design of Platform ''JJ'' which was installed in September 1982. Field results that include periodic potential surveys of Platform ''JJ'' will be presented and discussed.

  11. Satellite Telemetry Analyzer Tool for DubaiSat-1

    NASA Astrophysics Data System (ADS)

    Al Hammadi, Omran; Amin, Amel; Al Rais, Adnan; Alloghani, Majid

    2013-08-01

    LEO Satellite telemetry is transmitted to the ground station once it passes over it. This telemetry contains readings of different parameters of various subsystems within the spacecraft. These readings must be analyzed on daily basis to assure the satellite health. Detection of any anomaly occurred or a prediction of possible future problem is a time-consuming task and requires a lot of manpower resources. Satellite operators and engineers need a system that visualizes these massive amounts of readings and automatically detects any anomaly occurred. The Ground Systems Development of EIAST has developed a system that analyzes the received telemetry from DubaiSat-1. It searches for already archived telemetry and stores it into the system database. The end-user interface enhances the telemetry visualization by plotting different parameters of a subsystem during different satellite operation modes. It also clearly notifies the operators of the satellite if any value exceeds its maximum level or drops down to its minimum value.

  12. Assessment of contaminants in Dubai coastal region, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Al-Darwish, H. A.; Abd El-Gawad, E. A.; Mohammed, F. H.; Lotfy, M. M.

    2005-12-01

    Coastal uses and other human activities have inevitably impinged on the Gulf environment; therefore, these regions require continuous monitoring. The investigated area covered the maximum fragments of Dubai coastal region in the Arabian Gulf. The determination of major oxides and trace metal concentrations in Dubai sediments revealed three heavily and moderately contaminated regions. One is in the far northeastern part at Al-Hamriya Sts 1 3 and contaminated by Fe, Cu, Pb, and Zn; the second is in the mid-northeastern part at Dry Docks and contaminated by Cu, Ni, Pb, and Zn; and finally, the third is in the near southwestern part at Dubal and contaminated by Fe, Mg, Cr, Ni, and Zn. Al-Hamriya St 3 represented the highest values of Cu, Pb, and Zn, whereas Dubal exhibited the maximum values of Fe, Mg, Ba, Cr, Mn, Ni, and V. The anthropogenic discharge and natural deposits are the main sources of contamination. In general, all trace and major elements showed the minimal levels at Jebel Ali Sanctuary (Sts 11, 12, 13) except for Sr and Ca, which showed their maximum values. The highest concentrations of Ca and Sr are mainly attributed to carbonate gravel sands and sands, which cover most stations. Each of V and Ni showed negative correlation with TPH, which may be indicated that the source of oil contamination in the region is not related to crude oil but mostly attributable to anthropogenic sources. The significant positive correlation, which was found between trace metals and TOC indicates that organic matter plays an important role in the accumulation of trace metals in case of Cu, Zn, and Pb.

  13. Health services financing and delivery: analysis of policy options for Dubai, United Arab Emirates

    PubMed Central

    Hamidi, Samer

    2015-01-01

    Introduction A national health account (NHA) provides a systematic approach to mapping the flow of health sector funds within a specified health system over a defined time period. This article attempts to present a profile of health system financing in Dubai, United Arab Emirates using data from NHAs, and to compare the functional structures of financing schemes in Dubai with schemes in Qatar and selected member countries of the Organization for Economic Cooperation and Development (OECD). Methods The author analyzed secondary data published in NHAs of Dubai and Qatar and data collected by the OECD countries and publicly available from Eurostat (Statistical Office of the European Union) of 25 OECD countries for comparative analysis. All health financing indicators used were as defined in the international System of Health Accounts (SHA). Results In Dubai, spending on inpatient care was the highest-costing component, with 30% of current health expenditures (CHE). Spending on outpatient care was the second highest-costing component and accounted for about 23% of the CHE. Household spending accounted for about 22% of CHE (equivalent to US$187 per capita), compared to an average of 20% of CHE of OECD countries. Dubai spent 0.02% of CHE on long-term care, compared to an average of 11% of CHE of OECD countries. Dubai spent about 6% of CHE on prevention and public health services, compared to an average of 3.2% of CHE of OECD countries. Conclusion The findings point to potential opportunities for growth and improvement in several health policy issues in Dubai, including increasing focus and funding of preventive services; shifting from inpatient care to day surgery, outpatient, and home-based services and strengthening long-term care; and introducing cost-containment measures for pharmaceuticals. More investment in the translation of NHA data into policy is suggested for future researchers. PMID:25750545

  14. Jebel Hafit and the Al Ain oases (Eastern Abu Dhabi, United Arab Emirates): an integrative approach of a cultural landscape through the scope of geodiversity

    NASA Astrophysics Data System (ADS)

    Giusti, Christian; Louchet, André; Beuzen-Waller, Tara; Ragala, Rachid; Pavlopoulos, Kosmas; Fouache, Éric; Cohen, Marianne; Desruelles, Stéphane; Gramond, Delphine

    2015-04-01

    As it can be seen on satellite images, geological, and geomorphological maps, the Jebel Hafit and its foothills are a rare example of landforms developed at the transition between a compressive area in the east, i.e. the Northern Oman Mountains, and a stable cratonic platform in the west, i.e. the Arabic Platform which, from a structural point of view, represents the foreland of the previous folded domain. The mountains of Jebel Hafit formed in response to two main orogenic events in Late Cretaceous (obduction of Semail Ophiolite and associated rocks) and in the Late Eocene to Miocene (formation of foreland folds). Concerning the environment, landforms of the Jebel Hafit appears today under extreme arid climatic conditions. But, as it is evidenced by the density and variety of archaeological remains that have led to the inscription of the sites on the World Heritage List, the situation was different yesterday. It is well known that desert have changed through time, so present conditions may not necessarily be those that have moulded desert surface. This is particularly clear when we travel back by the thought from present to a more or less distant period in the past. It is therefore legitimate to study the biophysical remnants of paleo-environments, which accompany the development of human settlements and the increasing impact of societies on the environment. A particular challenge will be to discriminate clearly the effect of the active present-day climatic-driven processes (such as thermal fatigue weathering, salt weathering, wind corrasion, sporadic flooding…) and those of prehistoric times, which requires a geoarchaeological and paleoenvironmental approach of the Holocene as a whole and also before (Late Pleistocene). An important point not to be forgotten is that severe rainstorms happen on the area only at a highly variable temporal scale, especially hurricanes coming from the Indian Ocean and that may travel west of the Oman Mountains. At the level of human settlements and occupation, it is possible to characterize a threefold transition: first, the former transition between the pre-Islamic prehistoric societies and the development of Muslim societies; second, the more recent transition between the traditional historical society (farmers) and the contemporary society, characterized by the growth of urbanization, the creation of modern transport infrastructure and the concomitant growth of tourist flows; third, the current transition between the yesterday and tomorrow Al Ain City, due to the transformation of a local town centred on national economics all along the second half of the twentieth century, into an international town more open to the wider world with the management of a possible increased 20 % of tourist flow because of the inscription of Cultural Sites of Al Ain on the UNESCO's World Heritage List. It is not possible to completely ignore the fact that the Jebel Hafit and its foothills are partly crossed by an international boundary. In case of political tensions, this may cause some difficulties for the management of this territory, with contradictory requirements between security, tourism, traditional land use, and scientific research.

  15. Literacy and You in a Digital Age. ICEM-CIME 2009 Conference (Abu Dhabi, United Arab Emirates, October 6-8, 2009)

    ERIC Educational Resources Information Center

    McTaggart, Alex, Comp.

    2009-01-01

    International Council for Educational Media-Conseil International des Medias Educatifs (ICEM-CIME) brings together experts from the fields of education, media, IT, and educational media production. Since its formation in 1950, the organization has witnessed and contributed to educational media in an international forum. The 2009 ICEM conference…

  16. TEND 2000: Proceedings of the Technological Education and National Development Conference, "Crossroads of the New Millennium" (2nd, April 8-10, 2000, Abu Dhabi, United Arab Emirates).

    ERIC Educational Resources Information Center

    Higher Colleges of Technology, Abu Dhabi (United Arab Emirates).

    This document contains a total of 57 welcoming speeches, theme addresses, seminar and workshop papers, and poster sessions that were presented at a conference on technological education and national development. The papers explore the ways technology and technological advances have both necessitated and enabled changes in the way education is…

  17. TEND 97: Conference on Technological Education and National Development Report of Proceedings (1st, April 6-8, 1997, Abu Dhabi, United Arab Emirates).

    ERIC Educational Resources Information Center

    1997

    This document contains 39 papers and 13 poster presentations from a conference on technological education and national development. The following are among the papers included: "The Future of Technological Education and Vocational Education: UNESCO's (United Nations Educational Scientific and Cultural Organization's) Perspective" (Adnan Badran);…

  18. 75 FR 2921 - In the Matter of the Designation of Said Ali al-Shihri, Also Known as Abu-Sayyaf, Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-19

    ... Matter of the Designation of Said Ali al-Shihri, Also Known as Abu-Sayyaf, Also Known as Abu-Sufyan al-Azidi, Also Known as Abu-Sayyaf al-Shihri, Also Known as Abu Sufian Kadhdhaab Matrook, Also Known as Sa'id Ali Jabir al-Khathim al-Shihri, Also Known as Salad, Also Known as Abu Salah Abu Sufyan,...

  19. Unveiling Third Space: A Case Study of International Educators in Dubai, United Arab Emirates

    ERIC Educational Resources Information Center

    Saudelli, Mary Gene

    2012-01-01

    This article highlights one aspect of a case study of international educators at Dubai Women's College (DWC), United Arab Emirates (UAE). It examines perceptions of international educators in third space teaching female Emirati, higher-education students in the UAE. Drawing on third space theory (Bhabha, 1994), this study explored the nature of…

  20. Human Resource Development through Vocational Education in the United Arab Emirates: The Case of Dubai Polytechnic.

    ERIC Educational Resources Information Center

    Wilkins, Stephen

    2002-01-01

    Data from Dubai Polytechnic and United Arab Emirates government sources indicate that postsecondary private-sector vocational education plays a significant role in the government policy of increasing the proportion of native workers in the labor force. However, private colleges and universities have been hindered by political and economic…

  1. Employment of Young Adults with Disabilities in Dubai--A Case Study

    ERIC Educational Resources Information Center

    Alborno, Nadera; Gaad, Eman

    2012-01-01

    The authors investigated the implementation of the United Arab Emirates Federal Law regarding the employment of people with disabilities. They used a case study evaluation of an employment program initiated by a private national landscaping company in Dubai providing training and employment opportunities for young adults with varied physical and…

  2. Dubai, Aiming to Be an Academic Hub, Strikes a Deal with Michigan State

    ERIC Educational Resources Information Center

    Krieger, Zvika

    2007-01-01

    Dubai has long competed with its wealthy Persian Gulf neighbors to become a regional hub of higher education. Yet its Knowledge Village, a collection of nearly 20 foreign-university campuses and local educational institutes, has been overshadowed by Qatar's Education City, which is home to the branch campuses of a number of high-profile American…

  3. "Selective Cosmopolitans": Tutors' and Students' Experience of Offshore Higher Education in Dubai

    ERIC Educational Resources Information Center

    Kadiwal, Laila; Rind, Irfan A.

    2013-01-01

    As the offshore mobility of higher education has increased in recent times, the question of how it interacts with the recipient cultures has become ever more significant. Using ethnographic methods, this empirical study examined the adaptation of the UK teacher education model--the Postgraduate Certificate in Education--to the context of Dubai.…

  4. E-Learning in Higher Education--Opportunities & Challenges for Dubai

    ERIC Educational Resources Information Center

    Gokah, Theophilus K.; Gupta, Namrata; Ndiweni, Esinath

    2015-01-01

    E-Learning is becoming a popular delivery method across various universities and colleges in Dubai as the region is experiencing a rapid growth of e-Learning in higher education. Adequate infrastructure, changes in demographic profile, globalization, government initiatives, outsourcing and increasing demand for IT knowledge based jobs are the…

  5. 77 FR 5291 - The Designation of Yassin Chouka, Also Known as Yasin Chouka, Also Known as Abu Ibrahim, Also...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... Ibraheem the German, also Known as Abu Ibrahim al Almani, as a Specially Designated Global Terrorist... Ibraheem the German, also known as Abu Ibrahim al Almani, committed, or poses a significant risk...

  6. Cal/Val activities for DubaiSat-2 performance assessment

    NASA Astrophysics Data System (ADS)

    Bushahab, A.; Al-Mansoori, S.; Al-Suwaidi, K.; Al Matroushi, Hessa; Al-Tunaiji, E.; Al Shamsi, Meera

    2014-10-01

    Emirates Institution for Advanced Science and Technology (EIAST) was established by the Dubai Government in 2006. After three years of working together with Satrec Initiative (South Korea), EIAST was able to launch DubaiSat-1 on the 29th of July 2009. Building on the success of DubaiSat-1 and the roll out of the knowledge transfer program, UAE engineers were involved in almost 70% of the total build and design of DubaiSat-2. Targeting the commercial market, DubaiSat-2 was launched on the 21st of November 2013 for capturing 1-meter resolution images. The 1st Cal/Val phase was the most critical phase in the satellite life-time, where most of the initial measurements took place. This phase extended over the period of 25/11/2013 till 12/12/2013. Moreover, this phase included most of the relative calibration tasks, color balancing and band matching. 2nd Cal/Val phase included most of the debugging and the pointing accuracy calibration tests. This phase extended over the period of 11/02/2014 till 09/03/2014. This phase emphasized on the calibration of the pointing accuracy. The 3rd Cal/Val phase included fine tuning for the Gyro system to further increase the stability of the satellite and thus improve the pointing accuracy. Moreover, new techniques were implemented to the Pan-Sharpening and to the MTF compensation procedures to enhance the final product. This phase extended over the period of 04/05/2014 till 21/05/2014.

  7. Who Got to Decide on Nadia Abu El-Haj's Tenure?

    ERIC Educational Resources Information Center

    Rabinowitz, Dan; Shamir, Ronen

    2008-01-01

    The tension surrounding Barnard College's determination of whether to grant tenure to anthropologist Nadia Abu El-Haj was resolved this fall. Barnard reached a positive decision. The affair, however, leaves a number of important issues open. At the center of this controversy stands Abu El-Haj's first book, "Facts on the Ground: Archaeological…

  8. Introduction of an Emergency Response Plan for flood loading of Sultan Abu Bakar Dam in Malaysia

    NASA Astrophysics Data System (ADS)

    Said, N. F. Md; Sidek, L. M.; Basri, H.; Muda, R. S.; Razad, A. Z. Abdul

    2016-03-01

    Sultan Abu Bakar Dam Emergency Response Plan (ERP) is designed to assist employees for identifying, monitoring, responding and mitigation dam safety emergencies. This paper is outlined to identification of an organization chart, responsibility for emergency management team and triggering level in Sultan Abu Bakar Dam ERP. ERP is a plan that guides responsibilities for proper operation of Sultan Abu Bakar Dam in respond to emergency incidents affecting the dam. Based on this study four major responsibilities are needed for Abu Bakar Dam owing to protect any probable risk for downstream which they can be Incident Commander, Deputy Incident Commander, On-Scene Commander, Civil Engineer. In conclusion, having organization charts based on ERP studies can be helpful for decreasing the probable risks in any projects such as Abu Bakar Dam and it is a way to identify and suspected and actual dam safety emergencies.

  9. 78 FR 40545 - Designation of Abd Al-Ra'Ouf Abu Zaid Mohamed Hamza, also known as Abdul Rauf Abuzaid, also known...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-05

    ... Designation of Abd Al-Ra'Ouf Abu Zaid Mohamed Hamza, also known as Abdul Rauf Abuzaid, also known as Abdel... Mohamed Hamza, also known as Abdul Rauf Abuzaid, also known as Abdel Raouf Abu Zayid Hamza, also known as... Abu Zaid Mohamed, also known as Abd-al-Ra'uf Abu Zayd Muhammad Hamza, also known as Abdul Raouf...

  10. Performance evaluation of supervised change detection tool on DubaiSat-2 multispectral and pansharp images

    NASA Astrophysics Data System (ADS)

    Almatroushi, Hessa R.

    2014-10-01

    Supervised Change Detection Tool (SCDT) is an in-house developed tool in Emirates Institution for Advanced Science and Technology (EIAST). The developed tool is based on Algebra Change Detection algorithm and multi-class Support Vector Machine classifier and is capable of highlighting the areas of change, describing them, and discarding any falsedetections that result from shadow. Further, it can collect the analysis results, which include the change of class an area went through and the overall change percentage of each class defined, in a Microsoft Word document automatically. This paper evaluates the performance of the SCDT, which was initially developed for DubaiSat-1 multispectral images, on DubaiSat-2 multispectral and pansharp images. Moreover, it compares its performance opposed to Change Detection Analysis (i.e. Post-Classification) in ENVI.

  11. Oil and gas developments in Middle East in 1985

    SciTech Connect

    Hemer, D.O.; Gohrbandt, K.H.A.

    1986-10-01

    Petroleum production in Middle East countries during 1985 totaled 3,837,580,000 bbl (an average rate of 10,513,917 BOPD), down 2.2% from the revised 1984 total of 3,924,034,000 bbl. Iran, Iraq, Dubai, Oman, and Syria had significant increases; Kuwait, Kuwait-Saudi Arabia Divided Neutral Zone, Saudi Arabia, and Qatar had significant decreases. New fields went on production in Iraq, Abu Dhabi, Oman, and Syria. In North Yemen, the first ever oil production in that country was nearing the start-up stage at year end. 9 figures, 9 tables.

  12. The deubiquitinating enzyme DUBAI stabilizes DIAP1 to suppress Drosophila apoptosis

    PubMed Central

    Yang, C-S; Sinenko, S A; Thomenius, M J; Robeson, A C; Freel, C D; Horn, S R; Kornbluth, S

    2014-01-01

    Deubiquitinating enzymes (DUBs) counteract ubiquitin ligases to modulate the ubiquitination and stability of target signaling molecules. In Drosophila, the ubiquitin–proteasome system has a key role in the regulation of apoptosis, most notably, by controlling the abundance of the central apoptotic regulator DIAP1. Although the mechanism underlying DIAP1 ubiquitination has been extensively studied, the precise role of DUB(s) in controlling DIAP1 activity has not been fully investigated. Here we report the identification of a DIAP1-directed DUB using two complementary approaches. First, a panel of putative Drosophila DUBs was expressed in S2 cells to determine whether DIAP1 could be stabilized, despite treatment with death-inducing stimuli that would induce DIAP1 degradation. In addition, RNAi fly lines were used to detect modifiers of DIAP1 antagonist-induced cell death in the developing eye. Together, these approaches identified a previously uncharacterized protein encoded by CG8830, which we named DeUBiquitinating-Apoptotic-Inhibitor (DUBAI), as a novel DUB capable of preserving DIAP1 to dampen Drosophila apoptosis. DUBAI interacts with DIAP1 in S2 cells, and the putative active site of its DUB domain (C367) is required to rescue DIAP1 levels following apoptotic stimuli. DUBAI, therefore, represents a novel locus of apoptotic regulation in Drosophila, antagonizing cell death signals that would otherwise result in DIAP1 degradation. PMID:24362437

  13. Petroleum maturation modelling, Abu Gabra Sharaf area, Muglad Basin, Sudan

    NASA Astrophysics Data System (ADS)

    Mohamed, Abdalla Y.; Pearson, Michael J.; Ashcroft, William A.; Whiteman, A. J.

    2002-08-01

    Structural and maturation studies in the northwest of the Muglad Basin, Sudan showed a thick sedimentary section up to 9000 m in the deep sub-basins and an average of about 6000 m in the Sharaf-Abu Gabra Ridge. The isopach map of the Lower Cretaceous Abu Gabra-Sharaf formations, which contain source rocks, showed a thickness of sedimentary section between 2000 and 5000 m. The burial history showed high subsidence rates during the first rifting phase with relatively low subsidence rates during the following two phases in this part of the basin. Significant erosion of the sedimentary section occurred in the ridge area during Miocene and Cenomanian-Albian times. The geothermal gradients in the modelled wells range between 18 and 27.5 °C/km corresponding to the relatively wide range of present day heat flow of between 37 and 63 mW/m 2, averaging 50 mW/m 2. Heat flow history curves consistent with vitrinite reflectance data were adopted with elevated high heat flow (75 mW/m 2) during the first rifting phase followed by minor peaks (average 60 mW/m 2) during the second and the third rifting phases. Application of a kinetic vitrinite maturation model resulted in a present day oil window between 2000 and 4500 m. The source rock of the Abu Gabra (AG) and Sharaf (SH) formations, which has an average total organic carbon of 1.0% and hydrogen index (HI) of 280, was modelled for hydrocarbon generation. The section was divided into four layers; AG-1 (Albian), AG-2 (Aptian), SH-1 (Barremian) and SH-2 (Neocomian). Conditions for hydrocarbon generation are present throughout the Sharaf formation and in AG-2. The generation model suggests an average generation amount of 4 mgHC/g rock in the lower three modelled layers with a timing range between 120 Ma and the present. Total calculated oil volume is about 370 US billion bbls and the expected volume expelled and migrated (40%) is 150 US billion bbls. The total gas expelled and migrated (90%) is 1600 US trillion cu ft. Retention of

  14. Perception of community pharmacists toward their current professional role in the healthcare system of Dubai, United Arab Emirates

    PubMed Central

    Rayes, Ibrahim Khalid; Hassali, Mohamed Azmi; Abduelkarem, Abduelmula R.

    2014-01-01

    The new paradigm to pharmacy profession has changed the focus of pharmacists from product-centered to patient-oriented. This change has brought new set of beliefs and assumptions on the way services should be delivered to pharmacy clients. The main aim of this study was to explore the perception of community pharmacists on their current professional role in Dubai. Key findings show that community pharmacists are more directed toward business than patients. They almost dispense all categories of medicines over-the-counter without the need of prescriptions. However, a new trend of pharmacists in Dubai is to provide enhanced pharmacy services such as consultation to patients upon request. PMID:26106271

  15. Perception of community pharmacists toward their current professional role in the healthcare system of Dubai, United Arab Emirates.

    PubMed

    Rayes, Ibrahim Khalid; Hassali, Mohamed Azmi; Abduelkarem, Abduelmula R

    2015-07-01

    The new paradigm to pharmacy profession has changed the focus of pharmacists from product-centered to patient-oriented. This change has brought new set of beliefs and assumptions on the way services should be delivered to pharmacy clients. The main aim of this study was to explore the perception of community pharmacists on their current professional role in Dubai. Key findings show that community pharmacists are more directed toward business than patients. They almost dispense all categories of medicines over-the-counter without the need of prescriptions. However, a new trend of pharmacists in Dubai is to provide enhanced pharmacy services such as consultation to patients upon request. PMID:26106271

  16. The Cretaceous glauconitic sandstones of Abu Tartur, Egypt

    NASA Astrophysics Data System (ADS)

    Pestitschek, Brigitte; Gier, Susanne; Essa, Mahmoud; Kurzweil, Johannes

    2010-05-01

    The Abu Tartur mine is located in the Western Desert of Egypt, 50 km west of El Kharga City. Geologically, the Abu Tartur plateau is built by a sequence of Upper Cretaceous (Campanian - Maastrichtian) phosphorites, black shales and glauconitic sandstones. The phosphate deposits are of great economic importance and have been mined since their discovery in 1967. Outcrop sections were measured, sampled, sedimentologically characterized and described. One specific glaucony layer was investigated mineralogically and chemically in detail and compared to a subsurface sample from the mine. Two depositional regimes can be interpreted based on sedimentary architecture and structures: 1) a deeper-water hemipelagic environment, where phosphorites and organic carbon-rich shales were deposited and 2) a shallower, prograding higher energy shelf environment with glauconies. From a sequence stratigraphic perspective 1) was deposited during the transgressive systems tract and the early highstand while 2) was deposited during the remaining highstand and a lowstand prograding wedge (Glenn & Arthur, 1990). Petrographic and SEM investigations show that the glaucony grains are of authochtonous origin. XRF, EMPA and thin-section analyses show that the glaucony grains from the outcrop differ significantly in their chemical composition, morphology and color from the grains of the mine sample. The fresh glauconies are enriched in Fe2O3 and K2O compared to the surface samples. XRD analyses of the clay fraction of the six outcrop samples and the mine sample show that the grains consist of illite(glauconite)/smectite mixed-layers, with more illite layers (80 %) in the mine sample. The charge distribution diagram muscovite-pyrophyllite-celadonite shows a clear trend from smectitic glaucony to illitic glaucony, the mine sample plots exactly in the field for glauconites. All these features indicate that the surface samples are strongly altered by weathering and that glauconite progressively

  17. Seismic design factors for RC special moment resisting frames in Dubai, UAE

    NASA Astrophysics Data System (ADS)

    Alhamaydeh, Mohammad; Abdullah, Sulayman; Hamid, Ahmed; Mustapha, Abdilwahhab

    2011-12-01

    This study investigates the seismic design factors for three reinforced concrete (RC) framed buildings with 4, 16 and 32-stories in Dubai, UAE utilizing nonlinear analysis. The buildings are designed according to the response spectrum procedure defined in the 2009 International Building Code (IBC'09). Two ensembles of ground motion records with 10% and 2% probability of exceedance in 50 years (10/50 and 2/50, respectively) are used. The nonlinear dynamic responses to the earthquake records are computed using IDARC-2D. Key seismic design parameters are evaluated; namely, response modification factor ( R), deflection amplification factor ( C d), system overstrength factor ( Ω o), and response modification factor for ductility ( R d ) in addition to inelastic interstory drift. The evaluated seismic design factors are found to significantly depend on the considered ground motion (10/50 versus 2/50). Consequently, resolution to the controversy of Dubai seismicity is urged. The seismic design factors for the 2/50 records show an increase over their counterparts for the 10/50 records in the range of 200%-400%, except for the Ω o factor, which shows a mere 30% increase. Based on the observed trends, perioddependent R and C d factors are recommended if consistent collapse probability (or collapse prevention performance) in moment frames with varying heights is to be expected.

  18. QUANTITATIVE ASSESSMENT OF SOME PREVENTIVE HEALTH SERVICES PROVIDED FOR ADOLESCENT INDIVIDUALS IN DUBAI.

    PubMed

    Khansaheb, Hamda; Hussein, Ayman; Hamidi, Samer; Brown, David; Younis, Mustafa Z

    2016-01-01

    The United Arab Emirate (UAE) of Dubai, faces significant adolescent health problems. In 2009, evidence based clinical guidelines were developed for primary health care professionals in Dubai to help reduce adolescent health problems. This research study explores adolescents' self-reports about health education services received between 2008 and 2010. The sample consisted of 730 public high school students in grades 10 through 12 between the ages of 15 and 19. 357 (48.9%) of the sample were males and 373 (51.1%) were female. The major language spoken in the home was Arabic (77.4%). All students completed a 27-item survey in Arabic that was adapted from the Young Adult Health Care Survey (YAHCS). The YAHCS is a 56-item research instrument traditionally administered in English and Spanish. The sample reported they had received little or no health education from their health care providers. 94.2% reported receiving no information about using a helmet for bicycle and motorbike safety; 88.2% reported receiving no information about drug use; and 81.9% reported that they received no information about smoking. The instrument also explored the health education material students received within the last 12 months. 65.5% of the sample reported seeing and/or hearing safety tips; 84.9% reported hearing and/or seeing health information about healthy diet, physical activity and exercise; and 79.2% reported seeing and/or hearing information about the risks of smoking and substance abuse. PMID:27483976

  19. Complete Genome Sequence of Influenza Virus H9N2 Associated with a Fatal Outbreak among Chickens in Dubai.

    PubMed

    Lau, Siu-Ying; Joseph, Sunitha; Chan, Kwok-Hung; Chen, Honglin; Patteril, Nissy Annie Gerogy; Elizabeth, Shyna K; Muhammed, Rubeena; Baskar, Vijay; Lau, Susanna K P; Kinne, Joerg; Wernery, Ulrich; Woo, Patrick C Y

    2016-01-01

    We report the complete genome sequence of influenza virus H9N2 associated with a fatal outbreak among chickens in Dubai. All segments are clustered with avian H9N2 viruses circulating in the Middle East but distinct from those in southeast Asia. It is not a reassortant virus or transmitted from other regions. PMID:27540055

  20. Complete Genome Sequence of Influenza Virus H9N2 Associated with a Fatal Outbreak among Chickens in Dubai

    PubMed Central

    Lau, Siu-Ying; Joseph, Sunitha; Chan, Kwok-Hung; Chen, Honglin; Patteril, Nissy Annie Gerogy; Elizabeth, Shyna K.; Muhammed, Rubeena; Baskar, Vijay; Lau, Susanna K. P.; Kinne, Joerg

    2016-01-01

    We report the complete genome sequence of influenza virus H9N2 associated with a fatal outbreak among chickens in Dubai. All segments are clustered with avian H9N2 viruses circulating in the Middle East but distinct from those in southeast Asia. It is not a reassortant virus or transmitted from other regions. PMID:27540055

  1. Primary Mainstream Teachers' Attitudes towards Inclusion of Students with Special Educational Needs in the Private Sector: A Perspective from Dubai

    ERIC Educational Resources Information Center

    Gaad, Eman; Khan, Lavina

    2007-01-01

    One of the main challenges facing primary mainstream teachers in Dubai in the United Arab Emirates (UAE) stems from the current educational movement towards inclusion. It is an international phenomenon, a process that emphasizes providing special education services to students with special educational needs within the regular classrooms. The…

  2. 77 FR 38127 - The Designation of Abubakar Shekau, Also Known as Abu Mohammed Abubakar bin Mohammed, Also Known...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-26

    ... Designation of Abubakar Shekau, Also Known as Abu Mohammed Abubakar bin Mohammed, Also Known as Shekau, Also Known as Abu Muhammed Abubakar Bi Muhammed, Also Known as Shehu, Also Known as Shayku, as a Specially Designated Global Terrorist Pursuant to Section 1(b) of Executive Order 13224, as Amended Acting under...

  3. Prospect evaluation of BED 3 and Sitra oilfields, Abu Gharadig Basin, North Western Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Salem, Ibrahim; Ghazala, Hosni; El Diasty, Waleed

    2015-12-01

    The occurrence of hydrocarbons is closely linked to the elements of petroleum system history of the BED 3 and Sitra 8 oilfields, which has created multiple reservoir and seal combinations. BED 3 Field and Sitra concessions occupy the northwestern part of the Abu Gharadig Basin and extends between latitudes 29°45‧ and 30°05‧N and longitudes 27°30‧ and 28°10‧E. The comprehensive integration of the geo-related data and the interpretation of the well logging, geochemical, seismic data in time domain and depth and sealing mechanisms explain the occurrence of hydrocarbons in some certain reservoirs during cretaceous age and other reservoirs in the same fields don't have any hydrocarbon accumulation. Detailed seismic data interpretation was performed for the target units of BED 3 and Sitra 8 oilfields in time domain and converted to depth domain. Sitra 8 Field is a three-way dip closure bounded by NW-SE faults while BED 3 field is represented by a WNW-ESE trending horst dipping to the east. The Albian-Cenomanian Kharita Formation has a high energy shallow marine shelf environment and considered as the main pay zone in the BED 3 oilfield. On the other hand, Kharita sands are dry in the Sitra 8 Field. Also, the shallow marine shale, sandstone, limestone and dolomite interbeds of the Abu Roash G Member are another hydrocarbon bearing reservoir in the Sitra 8 Field. Sealing mechanisms were applied to explain why certain reservoirs have hydrocarbon and others don't. Allan's juxtaposition diagram for the main faults in the study area shows that Kharita sands in BED 3 area have excellent juxtaposition as Kharita juxtapose to upper Bahariya and intra Bahariya, which consist of shale and limestone. Abu Roash G sands in BED 3 area have bad juxtaposition as the Abu Roash G juxtapose to Abu Roash C sand (sand juxtaposed sand). Allan's diagram shows that the Abu Roash G reservoir (main target) in Sitra 8 is juxtaposing Abu Roash D which is composed of limestone and shale

  4. The Neoproterozoic Abu Dahr ophiolite, South Eastern Desert, Egypt: petrological characteristics and tectonomagmatic evolution

    NASA Astrophysics Data System (ADS)

    Gahlan, Hisham A.; Azer, Mokhles K.; Khalil, Ahmed E. S.

    2015-10-01

    The Neoproterozoic Abu Dahr ophiolite, South Eastern Desert, Egypt, is one of the best preserved and least dismembered ophiolite successions in the Arabian-Nubian Shield. It contains a Penrose-type ophiolite sequence from mantle section below mafic crust upward to oceanic sedimentary cover overlying mafic volcanics, although the original magmatic (stratigraphic) contact between the mantle and crustal sections is disrupted by tectonism. The Abu Dahr ophiolite is metamorphosed under greenschist facies conditions, and low-temperature alteration is widespread. Petrography reveals that: (i) the mantle is homogenous, serpentinized, and dominated by harzburgite and less abundant dunite; (ii) the cumulate ultramafics are represented by wehrlite and pyroxenite; and (iii) the crustal section is represented by metagabbros, meta-anorthosites and metabasalts. The Abu Dahr serpentinized peridotites show high Mg# (0.92-0.93), with enrichment of Ni, Cr and Co, and depletion of Al2O3 and CaO, and nearly flat and unfractionated REE chondrite-normalized pattern. Major and trace element characteristics of the Abu Dahr metagabbro and metabasalt (crustal section) indicate a tholeiitic to calc-alkaline affinity. Units of the crustal section have low-Nb and Zr concentrations, low Dy/Yb and relatively elevated La/Yb ratios, high U/Yb and Th/Yb ratios, and LREE enriched chondrite-normalized pattern. All of the Abu Dahr ophiolite units have trace-element signatures characterized by enrichment of LILE over HFSE. Rare and trace element patterns indicate a genetic link between the Abu Dahr mantle, cumulate ultramafics, and crust. Chromian spinel has survived metamorphism and is used as a petrogenetic indicator in the Abu Dahr serpentinized peridotites. The spinel is homogeneous with a limited composition, and shows high-Cr# (>0.6) combined with low-TiO2 character (mostly <0.1 wt.%). The Abu Dahr ophiolite is interpreted as a fragment of depleted oceanic lithosphere that experienced high degrees

  5. Iron deficiency anemia in Dubai Medical College for Girls: a preliminary study.

    PubMed

    Ayoub, A I

    1995-01-01

    Iron deficiency anemia is still one of the major public health problems all over the world. Particularly in developing countries the complete ecological picture is not well established. All students in the first and second academic years of Dubai Medical College for Girls were included in the present study. The mean Hb was 12.83 +/- 1.49 and that for serum iron was 13.73 micromol/L +/- 4.79. Anemia was detected among 24.62% of the group among which Arab Gulf Nationalities constituted 31.25%. Egyptians showed the highest prevalence of anemia (50%). The study showed a significant effect of chronic blood loss whether menstrual or from any other cause upon the Hb level. Also living in the hostel away from parents and families was reflected upon their diet habits and had a significant reflection upon the prevalence of anemia among the studied group. PMID:17214209

  6. Pressure buildup in gas-lift oil wells, Falah Field, offshore Dubai

    SciTech Connect

    Jain, A.; Ayoub, J.A.

    1983-03-01

    Extensive pressure build-up testing was carried out in the gas lift wells of the Falah Field located offshore Dubai. These tests were aimed at gathering reservoir information for input to a three dimensional reservoir simulation model. Pressure testing was carried out using conventional Amerada bombs, downhole memory recorders, and continuous monitoring with a GRC gauge using an electric line unit. Log-log plots of pressure change vs time displayed two different periods of wellbore storage in some wells due to the mechanisms that occurred following shutin. The data was analysed using type curve matching techniques. The radial flow was observed only in two wells. Other wells showed dominance of wellbore storage in spite of long shut-in periods of up to three weeks. The paper presents the results of build-up testing in three wells. The build-up shapes show marked differences due to changes in wellbore conditions.

  7. Site specific probabilistic seismic hazard analysis at Dubai Creek on the west coast of UAE

    NASA Astrophysics Data System (ADS)

    Shama, Ayman A.

    2011-03-01

    A probabilistic seismic hazard analysis (PSHA) was conducted to establish the hazard spectra for a site located at Dubai Creek on the west coast of the United Arab Emirates (UAE). The PSHA considered all the seismogenic sources that affect the site, including plate boundaries such as the Makran subduction zone, the Zagros fold-thrust region and the transition fault system between them; and local crustal faults in UAE. PSHA indicated that local faults dominate the hazard. The peak ground acceleration (PGA) for the 475-year return period spectrum is 0.17 g and 0.33 g for the 2,475-year return period spectrum. The hazard spectra are then employed to establish rock ground motions using the spectral matching technique.

  8. Effects of crude Dubai oil on Salmo gairdneri Rich. and Carassius auratus L

    SciTech Connect

    Ramusino, M.C.; Dellavedova, P.; Zanzottera, D.

    1984-03-01

    In 1980, owing to the bursting of an oil pipeline, about 663 tons of crude Dubai oil poured into the river Po, the largest Italian river (northern Italy). The aim of this work was to try and identify, by way of laboratory tests, the lethal concentrations and subsequently calculate the concentration threshold value, below which mortality does not occur (safety dose). In planning and carrying out the experiments the methodological problems encountered were many, arising from the nature of the toxicants and the lack of bibliographical references about pollution by hydrocarbons of a river ecosystem. The focal point of the problem is precisely the absence of a working method for tests with hydrocarbons. This makes the preparation of test solutions and the exposure of the animals to the toxic important for the validity of the entire work.

  9. Sport practice among private secondary-school students in Dubai in 2004.

    PubMed

    Wasfi, A S; El-Sherbiny, A A M; Gurashi, E; Al Sayegh, F U

    2008-01-01

    A study was made of sport practice and of knowledge, attitude and practice towards sport among 1475 private secondary-school students in Dubai, United Arab Emirates (UAE) in 2004. UAE students practised sport more than non-UAE students (33.9% versus 18.7% had good levels of activity) but there was no significant difference in positive attitudes towards sport practice (87.1% and 86.2% respectively). A good level of sport (vigorous exercise > or = 3 times per week for 20 min) was higher among males (26.0%) than females (14.7%). There was a significant association between overweight and obesity as well as tobacco smoking and low levels of sport practice. Health education intervention is needed to improve sport practice among young people. PMID:18720635

  10. Prickly business: abundance of sea urchins on breakwaters and coral reefs in Dubai.

    PubMed

    Bauman, Andrew G; Dunshea, Glenn; Feary, David A; Hoey, Andrew S

    2016-04-30

    Echinometra mathaei is a common echinoid on tropical reefs and where abundant plays an important role in the control of algal communities. Despite high prevalence of E. mathaei on southern Persian/Arabian Gulf reefs, their abundance and distribution is poorly known. Spatial and temporal patterns in population abundance were examined at 12 sites between breakwater and natural reef habitats in Dubai (UAE) every 3 months from 2008 to 2010. Within the breakwater habitat, densities were greatest at shallow wave-exposed sites, and reduced with both decreasing wave-exposure and increasing depth. Interestingly, E. mathaei were significantly more abundant on exposed breakwaters than natural reef sites, presumably due to differences in habitat structure and benthic cover. Population abundances differed seasonally, with peak abundances during summer (July-September) and lower abundances in winter (December-February). Seasonal fluctuations are likely the result of peak annual recruitment pulses coupled with increased fish predation from summer to winter. PMID:26563547

  11. Characteristics of atheromatous renovascular disease in Dubai: a single-center experience.

    PubMed

    Jebur, Wael Lateef; Abdulla, Khalid; Tomaraei, Sohrab

    2013-09-01

    To determine the characteristics of atherosclerotic renal artery stenosis (ARAS) in a cohort of patients who attended the Nephrology Department of NMC Specialty Hospital in Dubai from 2006 through 2010, including their clinical and investigational features and their response to various remedial modalities, we studied 20 patients with a diagnosis of ARAS based on magnetic resonance angiography. Three (15%) patients developed acute renal failure (ARF) after the initiation of angiotensin converting enzyme inhibitors or angiotensin II receptor blockers and 13 (65%) patients presented with chronic kidney disease (CKD) of either ischemic nephropathy or nephroangiosclerosis etiology. Four (20%) patients presented with resistant arterial hypertension (RAH). Plasma renin activity was elevated in all the patients. Fifteen (75%) patients were diabetics. We conclude that CKD was the main presentation of ARAS followed by RAH and ARF in our study. Diabetes Mellitus was the main risk factor for ARAS found in our study. PMID:24029285

  12. Assessment of organic pollutants in the offshore sediments of Dubai, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Darwish, H. A. Al; El-Gawad, E. A. Abd; Mohammed, F. H.; Lotfy, M. M.

    2005-08-01

    Fifteen stations (st) were selected along Dubai coastal region to delineate the distribution and the source of total petroleum hydrocarbon (TPH), total organic carbon (TOC), total Kjeldhal nitrogen (TKN), polycyclic aromatic hydrocarbon (PAHs) and polychlorinated biphenyls. The concentrations of TPH fluctuated between 2 μg g -1 and 48018 μg g -1 and the values of TOC were in the range of 0.16-5.9 wt%, while TPAHs ranged from 0.09 μg g -1 to 161.72 μg g -1. On the other hand, TPCBs showed values between 0.8 μg kg-1 and 93.3 μg kg-1 and TKN values varied from 218 μg g-1 to 2457 μg g -1. Distribution of oil and organic compounds in Dubai sediments are safe compared with previous studies except for limited areas at the northeastern offshore. These readings are probably due to: (1) presence of commercial or industrial ports, dry docks and fishing harbours and (2) population centers mainly concentrated at the northern part of the study area. Results indicate that TOC can be used as indicator of oil pollution only in heavily oiled sediments. The highest values of TOC, TPH, TPAHs and TPCBs corresponded to the stations covered with fine sand, due to adsorption properties and larger surface area. The evaporation of low boiling point compounds from surface layers led to enrichment of sediments with the thick residual. Al-Hamriya St 3 exhibited the highest values of TPH, TOC, TPAHs and TPCBs and the second highest value of TKN.

  13. Cognitive Styles in Students of Chemistry in SBS-ABU Zaria, Nigeria.

    ERIC Educational Resources Information Center

    Shuaibu, M. J.; Ogunsola, M. F.

    1983-01-01

    Cognitive preferences of chemistry students (N=156) in School of Basic Studies (SBS) at Ahmadu Bello University (ABU) were investigated. Results indicate that the four preferences (recall, principles, application, questioning) appear to be unrelated to sex and location of previous school for these Nigerian subjects. (JN)

  14. Post-Gulf-War nutrients and microbial assessments for coastal waters of Dubai, Sharjah, and Ajman Emirates (UAE)

    SciTech Connect

    Hassan, E.S.; Banat, I.M.; Abu-Hilal, A.H.

    1995-05-01

    Post-Gulf-War water pollution at the shores and in the creeks of Dubai, Sharjah, and Ajman in the UAE was assessed through monitoring selected chemical nutrients and microbial communities. The levels detected were generally similar to previous pre-war records. Dubai Creek had occasional high nutrient levels with some fluctuations and wide spatial and temporal variations, suggesting the presence of anthropogenic sources of pollution, creating these conditions, near the sampling sites. Sharjah and Ajman Creek had much lower nutrient levels. The microbial counts in the three creeks had distinct patterns, peaking in spring and summer and diminishing during winter. Total and faecal coliform counts fluctuated depending on the presence of nearby recreation and commercial areas; however, they were at no time consistently high. The predominant genera of microbial communities were determined, and it was generally concluded that there were no significant nutrient or microbial pollution problems in the creeks.

  15. Perception of community pharmacists towards the barriers to enhanced pharmacy services in the healthcare system of Dubai: a quantitative approach

    PubMed Central

    Rayes, Ibrahim K.; Hassali, Mohamed A.; Abduelkarem, Abduelmula R.

    2014-01-01

    Background: In many developing countries, pharmacists are facing many challenges while they try to enhance the quality of services provided to patients approaching community pharmacies. Objective: To explore perception of community pharmacists in Dubai regarding the obstacles to enhanced pharmacy services using a part of the results from a nation-wide quantitative survey. Methods: A questionnaire was distributed to 281 full-time licensed community pharmacists in Dubai. The questionnaire had 5 inter-linked sections: demographic information, information about the pharmacy, interaction with physicians, pharmacists’ current professional role, and barriers to enhanced pharmacy services. Results: About half of the respondents (45.4%, n=90) agreed that pharmacy clients under-estimate them and 52.5% (n=104) felt the same by physicians. About 47.5% (n=94) of the respondents felt that they are legally unprotected against profession’s malpractice. Moreover, 64.7% (n=128) stated that pharmacy practice in Dubai turned to be business-focused. In addition, 76.8% (n=252) found that one of the major barriers to enhanced pharmacy services is the high business running cost. Pharmacists screened tried to prove that they are not one of the barriers to optimized pharmacy services as 62.7% (n=124) disagreed that they lack appropriate knowledge needed to serve community and 67.7% (n=134) gave the same response when asked whether pharmacy staff lack confidence when treating consumers or not. Conclusions: Although being well established within the community, pharmacists in Dubai negatively perceived their own professional role. They stated that there are number of barriers which hinder optimized delivery of pharmacy services like under-estimation by pharmacy clients and other healthcare professionals, pressure to make sales, and high running cost. PMID:26131039

  16. High resolution sequence stratigraphic analysis of the Late Miocene Abu Madi Formation, Northern Nile Delta Basin

    NASA Astrophysics Data System (ADS)

    Sarhan, Mohammad Abdelfattah

    2015-12-01

    Abu Madi Formation represents the Upper Miocene Messinian age in the Nile Delta basin. It consists mainly of sandstones and shale intercalations and because of its richness in hydrocarbon, it has been subdivided by the petroleum companies into Level-I, Level-II and Level-III, respectively according to the increase in the sandstone to the shale ratio. The Miocene cycle in the northern subsurface section of the Nile Delta encompasses three main formations namely from the base; Sidi Salim formation, Qawasim Formation and Abu Madi Formation at the top. The high resolution sequence stratigraphic analysis, using gamma ray responses, has been done for the Late Miocene formation in the northern part of the Nile delta subsurface section. For this purpose, the gamma-ray logs of ten deep wells, arranged in four cross-sections trending in almost north-south direction throughout the northern region of the Nile Delta, were analyzed. The analysis has revealed that the interpreted 4th order depositional cycles within Abu Madi Formation display great variations in both number and gamma ray responses in each investigated well, and cannot be traced laterally, even in the nearest well. These variations in the interpreted 4th order depositional sequences could be attributed to the presence of normal faults buried in the inter-area laying between the investigated wells. This finding matches with the conclusion of that Abu Madi Formation represents a part of the Upper Miocene Nile Delta syn-rift megasequence, developed during the Upper Miocene rift phase of the Red Sea - Gulf of Suez province in Egypt. Accordingly, in the sequence stratigraphic approach, the depositional history of Abu Madi Formation was strongly overprinted by the tectonic controls rather than the relative sea-level changes which are assumed to be of a secondary influence. Regarding the hydrocarbon aspects of the Abu Madi Formation, the present work recommends to direct the drilling efforts into the stratigraphic traps

  17. Pressure buildup in gas-lift oil wells, Falah Field, offshore Dubai

    SciTech Connect

    Jain, A.; Ayoub, J.A.

    1984-03-01

    Extensive pressure buildup testing was carried out in the gas-lift wells of the Falah Field offshore Dubai. These tests were to gather reservoir information for use in a three-dimensional (3D) reservoir simulation model. Pressure testing was carried out with conventional Amerada bombs, downhole memory recorders, and continuous monitoring by means of an electric line unit with a Geophysical Research Co. (GRC) gauge. We also attempted to use a downhole shut-in tool with surface pressure readout. Log-log plots of pressure change vs. time displayed two different periods of wellbore storage in some wells as a result of a mechanism that occurred following shutin. This type of behavior has not been reported in the literature and leads to a very complicated interpretation of the test data. The data were analyzed by type-curve matching techniques to identify the interpretation model. Radial flow was observed in only two wells. Other wells showed dominance of wellbore storage in spite of long shut-in-periods as long as three weeks.

  18. Depositional, diagenetic, thermal, and maturation histories of Cretaceous Mishrif Formation, Fateh Field, Dubai

    SciTech Connect

    Videtich, P.E.; McLimans, R.K.; Watson, H.K.S.; Nagy, R.M.

    1988-10-01

    Rudist reef associated limestones comprising the Cretaceous Mishrif Formation are the major reservoirs in Fateh field, a giant oil field in offshore Dubai. In this study, Mishrif cores from four wells on the western flank of the field were examined to gain insights into the depositional, diagenetic, thermal, and maturation histories of the Mishrif Formation in this area. The wells lowest on the west flank contain relatively deep-water, lower fore-reef facies bounded by two erosional unconformities. The upper unconformity marks the Laffan-Mishrif contact and extends over Fateh field throughout the region. In Fateh field, the lower intra-Mishrif unconformity has been identified only on the western flank, but is probably present in other locations low on the Fateh structure. The identification of the lower unconformity indicates two cycles of Mishrif sedimentation. The cycles are related to deep-seated salt movement and epeiric sea level changes. Fluid inclusion data, maturation calculations, and burial history modeling indicate that the timing of cementation by blocky calcite spar and oil migration were approximately synchronous and occurred during the Oligocene to Miocene. 16 figures, 2 tables.

  19. Coral reproduction in the world's warmest reefs: southern Persian Gulf (Dubai, United Arab Emirates)

    NASA Astrophysics Data System (ADS)

    Bauman, A. G.; Baird, A. H.; Cavalcante, G. H.

    2011-06-01

    Despite extensive research on coral reproduction from numerous geographic locations, there remains limited knowledge within the Persian Gulf. Given that corals in the Persian Gulf exist in one of the most stressful environments for reef corals, with annual variations in sea surface temperature (SST) of 12°C and maximum summer mean SSTs of 36°C, understanding coral reproductive biology in the Gulf may provide clues as to how corals may cope with global warming. In this study, we examined six locally common coral species on two shallow reef sites in Dubai, United Arab Emirates (UAE), in 2008 and 2009 to investigate the patterns of reproduction, in particular the timing and synchrony of spawning. In total, 71% colonies in April 2008 and 63% colonies in April 2009 contained mature oocytes. However, the presence of mature gametes in May indicated that spawning was potentially split between April and May in all species. These results demonstrate that coral reproduction patterns within this region are highly seasonal and that multi-species spawning synchrony is highly probable. Acropora downingi, Cyphastrea microphthalma and Platygyra daedalea were all hermaphroditic broadcast spawners with a single annual gametogenic cycle. Furthermore, fecundity and mature oocyte sizes were comparable to those in other regions. We conclude that the reproductive biology of corals in the southern Persian Gulf is similar to other regions, indicating that these species have adapted to the extreme environmental conditions in the southern Persian Gulf.

  20. Diagenetic controls on reservoir heterogeneity in Cretaceous Mishrif Formation in Zeta-1 well, offshore Dubai

    SciTech Connect

    Videtich, P.E.; McLimans, R.K.; Frank, H.J.

    1989-03-01

    The Zeta-1 well tested a thickened lens of the Cretaceous Mishrif Formation located east of Fateh field in offshore Dubai, United Arab Emirates. Initial petrographic study of Mishrif core showed it to be a homogeneous, mollusk-rudist packstone that apparently underwent similar diagenesis throughout. However, geochemical analyses of the ore identified a horizon where sharp changes in the elemental and stable carbon isotope compositions occur. The authors interpret those changes to be due to a discontinuity that divides the packstone into upper and lower units. There is a marked change in porosity coincident with the discontinuity from 13% in the lower unit to 24% in the upper unit. Evidence for oil migration at Zeta-1 is retained in the form of oil fluid inclusions trapped within calcite cements. However, oil inclusions are found only in cements near or above the discontinuity. This suggests that oil migration was confined to the upper packstone, whereas cementation continued unrestricted in the lower packstone, resulting in diminished porosity. The lack of an updip seal is the apparent reason why commercial quantities of oil did not accumulate at Zeta-1. Geothermometry studies of fluid inclusions entrapped in late blocky calcite spar that occludes much of the porosity indicate that the cement originated at depth from a high-density brine, consistent with the above scenario. Thus, the heterogeneity in the reservoir rock is related to early diagenesis, controlled in part by the discontinuity, deep burial cementation, and migration of oil.

  1. Semi-supervised classification tool for DubaiSat-2 multispectral imagery

    NASA Astrophysics Data System (ADS)

    Al-Mansoori, Saeed

    2015-10-01

    This paper addresses a semi-supervised classification tool based on a pixel-based approach of the multi-spectral satellite imagery. There are not many studies demonstrating such algorithm for the multispectral images, especially when the image consists of 4 bands (Red, Green, Blue and Near Infrared) as in DubaiSat-2 satellite images. The proposed approach utilizes both unsupervised and supervised classification schemes sequentially to identify four classes in the image, namely, water bodies, vegetation, land (developed and undeveloped areas) and paved areas (i.e. roads). The unsupervised classification concept is applied to identify two classes; water bodies and vegetation, based on a well-known index that uses the distinct wavelengths of visible and near-infrared sunlight that is absorbed and reflected by the plants to identify the classes; this index parameter is called "Normalized Difference Vegetation Index (NDVI)". Afterward, the supervised classification is performed by selecting training homogenous samples for roads and land areas. Here, a precise selection of training samples plays a vital role in the classification accuracy. Post classification is finally performed to enhance the classification accuracy, where the classified image is sieved, clumped and filtered before producing final output. Overall, the supervised classification approach produced higher accuracy than the unsupervised method. This paper shows some current preliminary research results which point out the effectiveness of the proposed technique in a virtual perspective.

  2. "Where Is the Love?": The Ethics of Empathy in Abu Ghraib

    ERIC Educational Resources Information Center

    Sturgeon, Elizabeth M.

    2007-01-01

    Abu Ghraib. The name conjures horrifying images of abuse, torture, and man's inhumanity to man. In one photograph, a pyramid of naked detainees huddles outside a jail cell; in another, a soldier holds the end of a dog leash which is attached at the neck to a prostrate prisoner; in another, a soldier gives the thumbs-up sign in front of a line of…

  3. Paleomagnetism of Abu Aggag and Sabaya Formations at Kalabsha, South Western Desert of Egypt.

    NASA Astrophysics Data System (ADS)

    Mostafa, Reem; Khashaba, Ahmed; El-Hemaly, Ibrahim; Takla, Emad; Abdel Aal, Mohamed; Odah, Hatem

    2015-04-01

    Two profiles have been sampled from the Nubia Sandstone at Aswan, south Western Desert: The 1st profile has been taken from Abu Aggag Formation and the 2nd one was from Sabaya Formation (23.25 oN, 32.75 oE). 136 oriented cores (from 9 sites) have been sampled. Abu Aggag Formation is of Late Cretaceous (Turonian) and Sabaya Formation is of Early Cretaceous (Albian-Cenomanian). The studied rocks are subjected to rock magnetic measurements as well as demagnetization treatment. It has been found that hematite is the main magnetic mineral in both formations. Four profile sections (normal polarity) from Abu Aggag Formation, yielded a magnetic component with D = 352.7°, I = 36.6° with 95 = 5.2° and the corresponding pole lies at lat. = 82.8 °N and long. = 283.1 °E. Five profile sections (normal polarity) from Sabaya Formation, yielded a magnetic component with D = 348.6°, I = 33.3° with 95 = 5.8° and the corresponding pole lies at lat. = 78.3 °N and long. = 280.4 °E. The obtained paleopole for the two formations lies at lat. = 80.5 °N and long. = 281.7 °E. The obtaind components are considered primary and the corresponding paleopole reflects the age of Nubia Sandstone when compared with the previously obtained Cretaceous poles for Egypt.

  4. Chromium biogeochemical cycle in Abu Kir Bay, east of Alexandria, Egypt

    NASA Astrophysics Data System (ADS)

    Aboul Dahab, O.

    1989-10-01

    Abu Kir Bay, east of Alexandria, is affected by two main point sources of pollution, namely Tabia Pumping Station and Lake Edku Outlet. Chromium was measured in the Bay effluents, sea water, marine organisms of different trophic levels, and sediments. Chromium concentration and mass emission from TPS (242 μg l -1 and 436 kg d -1) to the Bay are very high compared to those of Lake Edku Outlet (33 μg l -1 and 116 kg d -1). Average Cr concentrations in the Bay coastal waters during the period of study, were 0·120 μg l -1, 0·775 μg l -1 and 1·185 μg l -1, respectively, for Cr(III), Cr(VI), and particulate pphase. The surface distribution of Cr in the coastal waters showed the impact of Tabia Pumping Station on the Bay. On the basis of sediment concentrations of Cr in Abu Kir Bay, two 'hot spots' of the element were identified. The area around Tabia Pumping Station outfall (> 300 μg g -1 dw) and another one in the immediate vincinity of Lake Outlet (> 200 μg g -1 dw). Chromium concentrations in Abu Kir Bay organisms increased in the following order: mixed plankton (68 μg kg -1) > Sardina pilchardus (80 μg kg -1) ⩾ Mugil capito (82 μg kg -1) > Mullus barbatus (111 μ kg -1) > Solea solea (123 μg kg -1) > Penaeus kerathurus (168 μg kg -1 > Donax trunculus (209 μ kg -1) > Neptunus pelagicus (369 μg kg -1) > Ulva species (1867 μg kg -1) > Enteromorpha species (3345 μg kg -1). The sequence is consistent for organisms from both west and east Abu Kir Bay, regardless of the significantly low Cr concentrations of the latter. The study showed that algae and crabs play a critical role in the biological transport of Cr and can be considered the best accumulators of the element. From the total amount of Cr flux to the Bay, 552 kg d -1, flushing of the Bay to the open sea removes 262 kg d -1, and sedimentation within the Bay is 242 kg d -1. Finally, an input/output box model for Cr in Abu Kir Bay was constructed to help in understanding its biogeochemical cycle.

  5. An outbreak of low pathogenic avian influenza in a mixed-species aviculture unit in Dubai in 2005.

    PubMed

    Kent, Jo; Bailey, Tom; Silvanose, Christu-Das; McKeown, Sean; Wernery, Ulrich; Kinne, Joerg; Manvell, Ruth

    2006-09-01

    This case describes an outbreak of low pathogenic hemagglutinin 9 neuraminidase 2 avian influenza virus (AIV) in two white-bellied bustards (Eupodotis senegalensis), one stone curlew (Burhinus oedicnemius), and a blacksmith plover (Antibyx armatus) in a private zoologic collection in Dubai, United Arab Emirates. The four birds showed signs of respiratory disease, and all died as a result of disease or euthanasia. Attention has been paid to the diagnostic process and common differential diagnosis for upper respiratory tract disease in bustards, curlews, and plovers. To the knowledge of the authors, AIV has not been previously described in these species. PMID:16931369

  6. The role of the hospital in the changing landscape of UAE health care: a focus on Dubai.

    PubMed

    Sharif, Amer Ahmad; Blair, Iain

    2011-01-01

    In the UAF, health services have developed greatly in the past 40 years and there have been enormous improvements in population health. The hospital sector is growing strongly with private sector investment. However the current and future health needs of the population are complex and may not be properly served by the continued expansion of hospital capacity. In this paper, using the Emirate of Dubai as a case study, we examine the changes that have taken place in health services and attempt to predict their optimum configuration and capacity in the future taking into account population structure and growth and levels of morbidity and service use. PMID:22235721

  7. Obligation towards medical errors disclosure at a tertiary care hospital in Dubai, UAE

    PubMed Central

    Zaghloul, Ashraf Ahmad; Rahman, Syed Azizur; Abou El-Enein, Nagwa Younes

    2016-01-01

    OBJECTIVE: The study aimed to identify healthcare providers’ obligation towards medical errors disclosure as well as to study the association between the severity of the medical error and the intention to disclose the error to the patients and their families. DESIGN: A cross-sectional study design was followed to identify the magnitude of disclosure among healthcare providers in different departments at a randomly selected tertiary care hospital in Dubai. SETTING AND PARTICIPANTS: The total sample size accounted for 106 respondents. Data were collected using a questionnaire composed of two sections namely; demographic variables of the respondents and a section which included variables relevant to medical error disclosure. RESULTS: Statistical analysis yielded significant association between the obligation to disclose medical errors with male healthcare providers (X2 = 5.1), and being a physician (X2 = 19.3). Obligation towards medical errors disclosure was significantly associated with those healthcare providers who had not committed any medical errors during the past year (X2 = 9.8), and any type of medical error regardless the cause, extent of harm (X2 = 8.7). Variables included in the binary logistic regression model were; status (Exp β (Physician) = 0.39, 95% CI 0.16–0.97), gender (Exp β (Male) = 4.81, 95% CI 1.84–12.54), and medical errors during the last year (Exp β (None) = 2.11, 95% CI 0.6–2.3). CONCLUSION: Education and training of physicians about disclosure conversations needs to start as early as medical school. Like the training in other competencies required of physicians, education in communicating about medical errors could help reduce physicians’ apprehension and make them more comfortable with disclosure conversations. PMID:27567766

  8. The impact of Merowe Dam on Simulium hamedense vector of onchocerciasis in Abu Hamed focus - Northern Sudan

    PubMed Central

    2014-01-01

    Background Abu Hamed, the northernmost onchocerciasis focus in the world, is located along the River Nile banks in the Nubian Desert. Hydroelectric dams can alter activity of black flies and may provide breeding sites for black fly. Merowe Dam, the largest hydropower project in Africa, was built west of Abu Hamed focus in 2009. The impact of the Dam on onchocerciasis and its black fly vectors in Abu Hamed focus was measured in this study. Findings Entomological surveys for aquatic stages and adult Simulium hamedense were conducted before and after the inception of Merowe Dam in 2007/2008 and 2010/2011. There was no black fly breeding or adult activity in the previously known breeding sites upstream of the Merowe Dam with the western most breeding site found in AlSarsaf village near the center of the focus. No adult or aquatic stages of black flies were found downstream of the Dam. Conclusions The artificial lake of the Dam flooded all the breeding sites in the western region of the focus and no aquatic stages and/or adult black fly activity were established in the study area upstream of the Dam. The Dam seems to have positive impact on onchocerciasis and its black fly vectors in Abu Hamed focus. These outcomes of the Merowe Dam might have contributed to the recently declared interruption of onchocerciasis transmission in Abu Hamed focus. Continuous entomological surveys are needed to monitor presence of black fly vectors and its impact on the disease. PMID:24708741

  9. 78 FR 29200 - In the Matter of the Designation of Abu Muhammad al-Jawlani Also Known as al-Fatih Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE In the Matter of the Designation of Abu Muhammad al-Jawlani Also Known as al-Fatih Also Known as Abu Muhammad al-Golani as a Specially Designated Global Terrorist Pursuant to Section 1(b) of Executive Order 13224,...

  10. Impact of Coastline-intensive Anthropogenic Activities on the Atmosphere from Moderate Resolution Imaging Spectroradiometer (MODIS) Data in Dubai (2001-2014)

    NASA Astrophysics Data System (ADS)

    Elhacham, Emily; Alpert, Pinhas

    2016-04-01

    This study illustrates the potential impact of large or the largest anthropogenic surface activities on the future of Earth's near-surface climate due to constructions performed in Dubai within just about 14 years. Dubai massive constructions in the outstanding form of both artificial islands and coastal urbanization areas during 2001-2014 are rated in among the top global growth-rates. While earlier studies in the Dubai area focused mainly either on the sea or the land impacts, here, we examine the atmospheric dynamic effects in an extended area including both land and sea. Temperature increases along with albedo decreases were observed in most recently urbanized areas, while the opposite occurred over the big artificial islands, all based on MODIS data. Temperature changes in both land and sea are associated through the coastal breezes also with humidity and wind speed changes that are analyzed against several meteorological stations. Surface observations show humidity increases in all stations, while the wind speed changes seem to follow the temperature gradient variations, particularly in Dubai.

  11. Habitat of oil in Abu Gharadig and Faiyum basins, Western Desert, Egypt

    SciTech Connect

    Awad, G.M.

    1984-05-01

    The Abu Gharadig and Faiyum basins are areas which have some of the greatest hydrocarbon potential in the Western Desert of Egypt. Several extensive cycles of marine transgression and regression occurred in these territories through geologic time. The depositional cycles combined with at least 3 tectonic cycles--the Hercynian orogeny at the end of the Paleozoic, from Late Jurassic to early Tertiary, and from Late Cretaceous to middle Tertiary--resulted in a highly deformed, thick sedimentary sequence. This organic-rich Jurassic-Upper Cretaceous-lower Tertiary sequence in large areas of these basins was subjected to enough heat and depth to generate hydrocarbons. It is evident from recent discoveries that these source rocks generated large amounts of highquality oil and gas. Exploration efforts should be concentrated on deep structures close to the main depocenters and inside or very close to the 150/sup 0/F geothermal contour. Contemporaneous structures on the northern rims of the basins should have high potential, resulting from migration of hydrocarbons from the south across major faults. The Jurassic in the northeastern part of the Abu Gharadig basin may provide good hydrocarbon potential. The lower Tertiary sequence present in the troughs also may have large amounts of oil entrapped in situ or resulting in shortdistance migration to the northern structures or to the Late Cretaceous-early Tertiary Syrian arc traps.

  12. Habitat of oil in Abu Gharadig and Faiyum basins, Western Desert, Egypt

    SciTech Connect

    Awad, G.M.

    1984-05-01

    The Abu Gharadig and Faiyum basins are areas which have some of the greatest hydrocarbon potential in the Western Desert of Egypt. Several extensive cycles of marine transgression and regression occurred in these territories through geologic time. The depositional cycles combined with at least 3 tectonic cycles - (1) the Hercynian orogeny at the end of the Paleozoic, (2) from Late Jurassic to early Tertiary, and (3) from Late Cretaceous to middle Tertiary - resulted in a highly deformed, thick sedimentary sequence. This organic-rich Jurassic-Upper Cretaceous-lower Tertiary sequence in large areas of these basins was subjected to enough heat and depth to generate hydrocarbons. The Abu Gharadig and Faiyum basins are separated structurally by a major ridge. Both basins are bounded on the north by another major ridge associated with Cretaceous and Tertiary faulting. A major platform with tin sedimentary cover forms the southern boundary. The hydrocarbon potential exists in cyclic sequences of sandstone, shale, and carbonate, having moderate porosities and permeabilities. An important hydrologic phenomenon prevails in major parts of the basins; fresh water has flushed the early Cenomanian and older reservoirs. Exploration efforts should be concentrated on deep structures close to the main depocenters and inside or very close to the main depocenter and inside or very close to the 150/sup 0/F (65/sup 0/C) geothermal contour.

  13. Object-based change detection: dimension of damage in residential areas of Abu Suruj, Sudan

    NASA Astrophysics Data System (ADS)

    Demharter, Timo; Michel, Ulrich; Ehlers, Manfred; Reinartz, Peter

    2011-11-01

    Given the importance of Change Detection, especially in the field of crisis management, this paper discusses the advantage of object-based Change Detection. This project and the used methods give an opportunity to coordinate relief actions strategically. The principal objective of this project was to develop an algorithm which allows to detect rapidly damaged and destroyed buildings in the area of Abu Suruj. This Sudanese village is located in West-Darfur and has become the victim of civil war. The software eCognition Developer was used to per-form an object-based Change Detection on two panchromatic Quickbird 2 images from two different time slots. The first image shows the area before, the second image shows the area after the massacres in this region. Seeking a classification for the huts of the Sudanese town Abu Suruj was reached by first segmenting the huts and then classifying them on the basis of geo-metrical and brightness-related values. The huts were classified as "new", "destroyed" and "preserved" with the help of a automated algorithm. Finally the results were presented in the form of a map which displays the different conditions of the huts. The accuracy of the project is validated by an accuracy assessment resulting in an Overall Classification Accuracy of 90.50 percent. These change detection results allow aid organizations to provide quick and efficient help where it is needed the most.

  14. Middle East: Slow year on the Gulf

    SciTech Connect

    Not Available

    1986-08-01

    This article surveys the petroleum outlook in the Middle East area. Observations include: Saudi Arabia's money crunch continues to keep the lid on exploration, production work; Abu Dhabi has also curtailed operations because of low oil prices, reduced budgets; Followup drilling has been disappointing around recent gas strikes in Sharjah, Dubai; Oman's aggressive EandP program will result in a 30% drilling increase this year; Kuwait isn't slowing down its development of light oil either; the goal is 40 new wells; Iran and Iraq are still boosting export capacities despite attacks on oil facilities; North Yemen's Alief field is a major find. Numerous structures remain to be drilled; Syria, Bahrain have development projects underway. Turkey is attracting U.S. majors.

  15. United Arab Emirates expansion curtailed but production still exceeds quota

    SciTech Connect

    Vielvoye, R.

    1987-08-24

    This article reports that oil and gas activity in the United Arab Emirates has been hit be declining exploration, curtailed development schedules, and the shutdown of production facilities. But despite a mothballing program, production is still running way ahead of the quota set by OPEC for the UAE. According to OPEC's schedule, first half 1987 production should not have exceeded 902,000 b/d. And the increased quotas for the second half of the year would permit output to average 948,000 b/d. But production averaged 1.2 million b/d during the first half of the year, and there is no sign of a significant reduction. Rising output when most other OPEC members are attempting to discipline themselves stems from the failure of Abu Dhabi and Dubai to agree on how the quota should be split. Details are provided on the regions of production activity.

  16. 78 FR 62002 - In the Matter of the Designation of Muhammad Jamal, Also Known as Abu Ahmed, Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE In the Matter of the Designation of Muhammad Jamal, Also Known as Abu Ahmed, Also Known as Muhammad Jamal al-Kashef, as a Specially Designated Global Terrorist Pursuant to Section 1(b) of Executive Order 13224,...

  17. Design and analysis of algorithms for enhancing the quality and the resolution of Dubai Sat-1 images

    NASA Astrophysics Data System (ADS)

    Al-Mansoori, Saeed

    2011-11-01

    DubaiSat-1 (DS1) captures multispectral images with 5-meter resolution using three visible bands red (420 to 510 nm), green (510 to 580 nm), blue (600 to 720 nm) and one near-IR band (760 to 890 nm). It also has a panchromatic channel with 2.5-meter resolution (420 to 720 nm). [1] Under certain conditions, degradation in quality might occur over DS1 captured images. The aim of this project is to enhance the quality of the image in terms of resolution, sharpness and color quality. It is well known that the enhancement procedure is a very difficult task due to the significant noise increase resulted from any sharpening action. Moreover, sometimes the color of the captured images might become saturated, thus some areas will be given false coloring (i.e., some colors will be presented as gray instead of their original colors).

  18. The Prevalence and the Determinants of Musculoskeletal Diseases in Emiratis Attending Primary Health Care Clinics in Dubai

    PubMed Central

    Al Saleh, Jamal; Sayed, Manal EL; Monsef, Nahed; Darwish, Ebtihal

    2016-01-01

    Objectives To estimate the prevalence of rheumatic diseases in the Emiratis attending primary health care (PHC) clinics in Dubai. The secondary objective was to study the relationship between age, gender, and body mass index (BMI) and rheumatic diseases in the general population.  Methods The Prevalence of Rheumatic Diseases and Osteoporosis (PRO) in Dubai study was a cross-sectional study, which randomly enrolled Emiratis’ aged between 18–85 years old who attended one of 13 PHC clinics between 2 January 2009 and 31 December 2009. Demographic and health data for all participants was obtained via a questionnaire. Participants that indicated positive answers had their responses validated by a rheumatologist and underwent a thorough locomotor examination.  Results The study included 3,985 participants with a mean age of 42.1±15.8 years. The majority (77.4%) were female. Lower back pain was the most prevalent problem in our study population (32.9%). Knee osteoarthritis (OA) was the most common form of arthritis seen in our cohort (25.8%). Overall, the prevalence of inflammatory arthritis was 3.1%. Age and BMI were associated with increased risk of knee OA and lower back pain.  Conclusions Rheumatic diseases are quite common in Emirati patients attending PHC clinics. Lower back pain and knee OA were the most common musculoskeletal diseases seen in our cohort. There is a need for more population-based studies in the Middle East to have a better understanding of the epidemiology of rheumatic diseases in this region. PMID:27168922

  19. Sequence stratigraphic controls on reservoir characterization and architecture: case study of the Messinian Abu Madi incised-valley fill, Egypt

    NASA Astrophysics Data System (ADS)

    Abdel-Fattah, Mohamed I.; Slatt, Roger M.

    2013-12-01

    Understanding sequence stratigraphy architecture in the incised-valley is a crucial step to understanding the effect of relative sea level changes on reservoir characterization and architecture. This paper presents a sequence stratigraphic framework of the incised-valley strata within the late Messinian Abu Madi Formation based on seismic and borehole data. Analysis of sand-body distribution reveals that fluvial channel sandstones in the Abu Madi Formation in the Baltim Fields, offshore Nile Delta, Egypt, are not randomly distributed but are predictable in their spatial and stratigraphic position. Elucidation of the distribution of sandstones in the Abu Madi incised-valley fill within a sequence stratigraphic framework allows a better understanding of their characterization and architecture during burial. Strata of the Abu Madi Formation are interpreted to comprise two sequences, which are the most complex stratigraphically; their deposits comprise a complex incised valley fill. The lower sequence (SQ1) consists of a thick incised valley-fill of a Lowstand Systems Tract (LST1)) overlain by a Transgressive Systems Tract (TST1) and Highstand Systems Tract (HST1). The upper sequence (SQ2) contains channel-fill and is interpreted as a LST2 which has a thin sandstone channel deposits. Above this, channel-fill sandstone and related strata with tidal influence delineates the base of TST2, which is overlain by a HST2. Gas reservoirs of the Abu Madi Formation (present-day depth ˜3552 m), the Baltim Fields, Egypt, consist of fluvial lowstand systems tract (LST) sandstones deposited in an incised valley. LST sandstones have a wide range of porosity (15 to 28%) and permeability (1 to 5080mD), which reflect both depositional facies and diagenetic controls. This work demonstrates the value of constraining and evaluating the impact of sequence stratigraphic distribution on reservoir characterization and architecture in incised-valley deposits, and thus has an important impact on

  20. Professional Development: Perceptions of Benefits for Principals

    ERIC Educational Resources Information Center

    Blaik Hourani, Rida; Stringer, Patricia

    2015-01-01

    Schools in Abu Dhabi are going through change and reform. Abu Dhabi Education Council (ADEC) has initiated professional development for principals to facilitate change and school improvement. This paper explores principals' perception on the benefits of professional development received in light of managing school change and reforms.…

  1. Technology Readiness of School Teachers: An Empirical Study of Measurement and Segmentation

    ERIC Educational Resources Information Center

    Badri, Masood; Al Rashedi, Asma; Yang, Guang; Mohaidat, Jihad; Al Hammadi, Arif

    2014-01-01

    The Technology Readiness Index (TRI) developed by Parasuraman (2000) was adapted to measure the technology readiness of public school teachers in Abu Dhabi, United Arab Emirates. The study aims at better understanding the factors (mostly demographics) that affect such readiness levels. In addition, Abu Dhabi teachers are segmented into five main…

  2. The establishment of the United Arab Emirates

    SciTech Connect

    Taryam, A.O.

    1987-01-01

    The United Arab Emirates were established in response to the British decision to withdraw from the Gulf by 1971. This decision, announced in 1968, had left the rulers of the emirates perplexed and alarmed. After decades of mutual suspicion and rivalry, fostered by British imperial dominance, the emirates were now obliged to seek security in federal union. Early in 1968 came the bilateral agreement for union between Abu Dhabi and Dubai. Then followed three years of prolonged negotiations between nine emirates, Bahrain, Qatar, Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah and Fujairah to establish a union of nine emirates. Constitutional wrangles as to what form the union would take and hard bargaining as to who would get what position or who would give up which claim, prevailed throughout the negotiations. Behrain was beset by Iranian claims and had no mind to enter into any agreement before this problem was solved. Qatar did not want to enter any agreement that did not ensure it a dominant position. Eventually Bahrain and Qatar dropped out of the talks and declared themselves independent states in 1971. The other seven emirates entered into serious negotiations that ended, also in 1971, with the formation of a federal state to be called the United Arab Emirates. This book chronicles this process which led to the establishment of the UAE and explains the circumstances which brought it about. It also examines the record of the first fifteen years of the federation and concludes that despite serious problems it has been broadly successful.

  3. Oligocene lacustrine tuff facies, Abu Treifeya, Cairo-Suez Road, Egypt

    NASA Astrophysics Data System (ADS)

    Abdel-Motelib, Ali; Kabesh, Mona; El Manawi, Abdel Hamid; Said, Amir

    2015-02-01

    Field investigations in the Abu Treifeya area, Cairo-Suez District, revealed the presence of Oligocene lacustrine volcaniclastic deposits of lacustrine sequences associated with an Oligocene rift regime. The present study represents a new record of lacustrine zeolite deposits associated with saponite clay minerals contained within reworked clastic vitric tuffs. The different lithofacies associations of these clastic sequences are identified and described: volcaniclastic sedimentary facies represent episodic volcaniclastic reworking, redistribution and redeposition in a lacustrine environment and these deposits are subdivided into proximal and medial facies. Zeolite and smectite minerals are mainly found as authigenic crystals formed in vugs or crusts due to the reaction of volcanic glasses with saline-alkaline water or as alteration products of feldspars. The presence of abundant smectite (saponite) may be attributed to a warm climate, with alternating humid and dry conditions characterised by the existence of kaolinite. Reddish iron-rich paleosols record periods of non-deposition intercalated with the volcaniclastic tuff sequence.

  4. 78 FR 6172 - In the Matter of the Designation of Ahmed Abdullah Saleh al-Khazmari al-Zahrani Also Known as Abu...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-29

    ...-Saudi Also Known as Ahmed Abdullah S al-Zahrani Also Known as Ahmad Abdullah Salih Al- Zahrani Also... Abdullah Saleh al-Khazmari, also known as Abu Maryam al-Saudi; also known as Ahmed Abdullah S...

  5. Electric fabric of Cretaceous clastic rocks in Abu Gharadig basin, Western Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Nabawy, Bassem S.; ElHariri, Tarek Y. M.

    2008-09-01

    Measuring the petrophysical properties of sedimentary rocks in three-dimensions (3-D) has a high priority for interpretation of their physical behaviour. The present work attempts to study the 3-D electric behaviour of the Upper Cretaceous sandstones and clayey sandstones in the Abu Gharadig basin, Egypt. These rocks belong to the Betty, Bahariya, and Abu Roash Formations. The apparent electrical resistivity ( Ro) was measured in three perpendicular directions, one normal to the bedding plane along Z-axis, and the other two directions parallel to the bedding plane and normal to each other, along X-axis and Y-axis. The electrical resistivity ( Ro) was also studied at three NaCl-saline concentrations of Rw = 0.53, 0.13, and 0.07 Ω m in ambient conditions, using A-C bridge at 1 kHz. It is proposed that, processing and matching the electric data in 3-D as ellipsoids instead of in 2-D, has led to the electric fabric concept. It is a combination of electric foliation ( F) and electric lineation ( L). Statistical analyses of measured electrical resistivity reveal that the electric fabric at the second brine concentration should be taken into consideration to avoid the effect of clay content. The electric lineation and foliation of the studied sandstones and clayey sandstones at the second concentration are mostly small (1.1-1.5) to moderate (1.5-2.5), with few sandstone samples having high (2.5-5.0) to very high foliation (5.0-7.5), whereas the electric anisotropy values for these samples are small to moderate (1.1-2.5). This fabric is contributed mainly from their electric foliation, indicating some load pressure compaction that led to small to moderate anisotropic grains and flow paths/network pore spaces.

  6. Origin and characteristics of brackish groundwater in Abu Madi coastal area, Northern Nile Delta, Egypt

    NASA Astrophysics Data System (ADS)

    Salem, Zenhom E.; Al Temamy, A. M.; Salah, Mohamed K.; Kassab, M.

    2016-09-01

    Hydrogeochemical and geoelectrical resistivity investigations were carried out to assess the origin and characteristics of a brackish groundwater in Abu Madi coastal area. Twenty six surface water, shallow and deep groundwater samples were collected and analyzed for various ionic concentrations as well as oxygen and hydrogen stable isotopic contents. In addition, a total of 20 vertical electrical sounding sites were conducted to investigate layers' thicknesses, resistivities, and to detect the water-bearing layers. Then, 2-D Electrical Resistivity Tomography (ERT) along two profiles in the study area was conducted to get information about the surface water effect on recharge. The stable isotopic composition and the chloride concentrations strongly suggest that the deep groundwater in Abu Madi area is dominated by inland freshwater with a minor seawater component. This groundwater was recharged during the first and the third Holocene humid climatic cycles where the sea surface was about 125 and 25 m below the current sea level, respectively. The brackish nature and higher piezometric surface of the groundwater, as well as the occurrence of vertical low-salinity seawater zone in front of the study area, support the possibility of submarine groundwater discharge. The geoelectrical resistivity surveying, on the other hand, revealed a number of geoelectrical groundwater-bearing layers. The main water-bearing layer in the study area is represented by the sixth geoelectrical layer, which has relatively high resistivity and a considerable thickness being consistent with the hydrogeochemical observations. ERT results point to the presence of shallow water-bearing layers recharged from the surface water drains with low resistivity and surface rain water of moderate resistivity. Results from the hydrogeochemical analyses and the different hydrogeological data are consistent with the high resistivity values of this geoelectrical layer. However, the overall high specific

  7. Hydrogeochemical analysis and evaluation of groundwater in the reclaimed small basin of Abu Mina, Egypt

    NASA Astrophysics Data System (ADS)

    Salem, Zenhom E.; Atwia, Mohamed G.; El-Horiny, Mohamed M.

    2015-12-01

    Agricultural reclamation activities during the last few decades in the Western Nile Delta have led to great changes in the groundwater levels and quality. In Egypt, changing the desert land into agricultural land has been done using transferred Nile water (through irrigation canal systems) or/and groundwater. This research investigates the hydrogeochemical changes accompanying the reclamation processes in the small basin of Abu Mina, which is part of the Western Nile Delta region. In summer 2008, 23 groundwater samples were collected and groundwater levels were measured in 40 observation wells. Comparing the groundwater data of the pre-reclamation (1974) and the post-reclamation (2008) periods, groundwater seems to have been subjected to many changes: rise in water level, modification of the flow system, improvement of water quality, and addition of new salts through dissolution processes. Generally, Abu Mina basin is subdivided into two areas, recharge and discharge. The dissolution and mixing were recognized in the recharge areas, while the groundwater of the discharge region carries the signature of the diluted pre-reclamation groundwater. The salts of soil and aquifer deposits play an important role in the salt content of the post and pre-reclamation groundwater. NaCl was the predominant water type in the pre-reclamation groundwater, while CaSO4, NaCl and MgSO4 are the common chemical facies in the post-reclamation groundwater. The post-reclamation groundwater mostly indicates mixing between the pre-reclamation groundwater and the infiltrated freshwater with addition of some ions due to interaction with soil and sediments.

  8. Impact of coastline-intensive anthropogenic activities on the atmosphere from moderate resolution imaging spectroradiometer (MODIS) data in Dubai (2001-2014)

    NASA Astrophysics Data System (ADS)

    Elhacham, Emily; Alpert, Pinhas

    2016-03-01

    This paper illustrates the potential impact of large or the largest anthropogenic surface activities on the future of Earth's near-surface climate due to constructions performed in Dubai within just about 14 years. Dubai's massive constructions in the outstanding form of both artificial islands and coastal urbanization areas during 2001-2014 are rated among the top global growth rates. While earlier studies in the Dubai area focused mainly either on the sea or the land impacts, here, we examine the atmospheric dynamic effects in an extended area including both land and sea. Temperature increases along with albedo decreases were observed in most recently urbanized areas, while the opposite occurred over the big artificial islands, all based on moderate resolution imaging spectroradiometer data. Temperature changes in both land and sea are also associated through the coastal breezes with humidity and wind speed changes that are analyzed against several meteorological stations. Surface observations show humidity increases in all stations, while the wind speed changes are varying between the different stations.

  9. AbuO, a TolC-Like Outer Membrane Protein of Acinetobacter baumannii, Is Involved in Antimicrobial and Oxidative Stress Resistance

    PubMed Central

    Srinivasan, Vijaya Bharathi; Vaidyanathan, Vasanth

    2014-01-01

    Although Acinetobacter baumannii is well accepted as a nosocomial pathogen, only a few of the outer membrane proteins (OMPs) have been functionally characterized. In this study, we demonstrate the biological functions of AbuO, a homolog of TolC from Escherichia coli. Inactivation of abuO led to increased sensitivity to high osmolarity and oxidative stress challenge. The ΔabuO mutant displayed increased susceptibility to antibiotics, such as amikacin, carbenicillin, ceftriaxone, meropenem, streptomycin, and tigecycline, and hospital-based disinfectants, such as benzalkonium chloride and chlorhexidine. The reverse transcription (RT)-PCR analysis indicated increased expression of efflux pumps (resistance nodulation cell division [RND] efflux pump acrD, 8-fold; SMR-type emrE homolog, 12-fold; and major facilitator superfamily [MFS]-type ampG homolog, 2.7-fold) and two-component response regulators (baeR, 4.67-fold; ompR, 10.43-fold) in the ΔabuO mutant together with downregulation of rstA (4.22-fold) and the pilin chaperone (9-fold). The isogenic mutant displayed lower virulence in a nematode model (P < 0.01). Experimental evidence for the binding of MerR-type transcriptional regulator SoxR to radiolabeled abuO promoter suggests regulation of abuO by SoxR in A. baumannii. PMID:25512405

  10. AbuO, a TolC-like outer membrane protein of Acinetobacter baumannii, is involved in antimicrobial and oxidative stress resistance.

    PubMed

    Srinivasan, Vijaya Bharathi; Vaidyanathan, Vasanth; Rajamohan, Govindan

    2015-02-01

    Although Acinetobacter baumannii is well accepted as a nosocomial pathogen, only a few of the outer membrane proteins (OMPs) have been functionally characterized. In this study, we demonstrate the biological functions of AbuO, a homolog of TolC from Escherichia coli. Inactivation of abuO led to increased sensitivity to high osmolarity and oxidative stress challenge. The ΔabuO mutant displayed increased susceptibility to antibiotics, such as amikacin, carbenicillin, ceftriaxone, meropenem, streptomycin, and tigecycline, and hospital-based disinfectants, such as benzalkonium chloride and chlorhexidine. The reverse transcription (RT)-PCR analysis indicated increased expression of efflux pumps (resistance nodulation cell division [RND] efflux pump acrD, 8-fold; SMR-type emrE homolog, 12-fold; and major facilitator superfamily [MFS]-type ampG homolog, 2.7-fold) and two-component response regulators (baeR, 4.67-fold; ompR, 10.43-fold) in the ΔabuO mutant together with downregulation of rstA (4.22-fold) and the pilin chaperone (9-fold). The isogenic mutant displayed lower virulence in a nematode model (P<0.01). Experimental evidence for the binding of MerR-type transcriptional regulator SoxR to radiolabeled abuO promoter suggests regulation of abuO by SoxR in A. baumannii. PMID:25512405

  11. Optical/NIR Observations of HBL 1ES 1959+625 from Mt Abu IR Observatory(MIRO), India

    NASA Astrophysics Data System (ADS)

    Baliyan, K. S.; Chandra, Sunil; Kaur, Navpreet; Ganesh, S.; Sameer; Srivastava, M.; Bisht, V.; Jatin; Kumar, Rathna

    2016-05-01

    We report the optical/NIR follow up observations of HBL 1ES 1959+650 (3FGL J2000.0+6509) at redshift (z) = 0.047 (Schachter et al. 1993, ApJ, 412, 541), using 1.2 m telescope at Mount Abu InrfaRed Observatory (MIRO), India after the alert from FACT collaboration (private communication) about TeV activity in this source.

  12. Molecular epidemiology of canine picornavirus in Hong Kong and Dubai and proposal of a novel genus in Picornaviridae.

    PubMed

    Woo, Patrick C Y; Lau, Susanna K P; Choi, Garnet K Y; Huang, Yi; Sivakumar, Saritha; Tsoi, Hoi-Wah; Yip, Cyril C Y; Jose, Shanty V; Bai, Ru; Wong, Emily Y M; Joseph, Marina; Li, Tong; Wernery, Ulrich; Yuen, Kwok-Yung

    2016-07-01

    Previously, we reported the discovery of a novel canine picornavirus (CanPV) in the fecal sample of a dog. In this molecular epidemiology study, CanPV was detected in 15 (1.11%) of 1347 canine fecal samples from Hong Kong and one (0.76%) of 131 canine fecal samples from Dubai, with viral loads 1.06×10(3) to 6.64×10(6) copies/ml. Complete genome sequencing and phylogenetic analysis showed that CanPV was clustered with feline picornavirus (FePV), bat picornavirus (BatPV) 1 to 3, Ia io picornavirus 1 (IaioPV1) and bovine picornavirus (BoPV), and this cluster was most closely related to the genera Enterovirus and Sapelovirus. The Ka/Ks ratios of all the coding regions were <0.1. According to the definition of the Picornavirus Study Group of ICTV, CanPV, FePV, BatPV 1 to 3, IaioPV1 and BoPV should constitute a novel genus in Picornaviridae. BEAST analysis showed that this genus diverged from its most closely related genus, Sapelovirus, about 49 years ago. PMID:27051044

  13. Development and use of a 3D simulator in evaluating reservoir development options: Fateh Mishrif, offshore Dubai

    SciTech Connect

    Crick, J.; Singh, S.P.

    1985-01-01

    Fateh Mishrif, one of the largest reservoir offshore Dubai, is a thick carbonate reefal development of which the centre has been completely eroded. During the past fifteen years production has been through natural depletion, peripheral water injection and gas lift. This paper describes the construction of a 3D reservoir model for the Fateh Mishrif reservoir and its application in evaluating further reservoir developments plans. Significant reservoir factors which influence fluid flow are a field wide tar-mat, faulting and the central pinch out. The initial fluids in place description is affected by two oil-water contacts across the field. The model simulates these features accurately. The prediction of future oil rates is based on an efficient gas lift optimization technique on a well by well basis which also provides a forecast of future gas lift requirements for the reservoir. The constraints on total available gas for gas lift and water injection rates, both field wide or regionally, can be modelled adequately. The model has been used for evaluating the expansion of the existing waterflood and future infill drilling potential. An important result of this study has been that the history matching phase has highlighted the need for further data gathering in specific parts of the reservoir.

  14. Genesis of the Abu Marawat gold deposit, central Eastern Desert of Egypt

    NASA Astrophysics Data System (ADS)

    Zoheir, Basem A.; Akawy, Ahmed

    2010-06-01

    Gold mineralisation at the Abu Marawat mine, central Eastern Desert of Egypt, is related to a system of massive and sheared, milky quartz veins cutting a sequence of Neoproterozoic island arc metavolcanic/volcaniclastic rocks and related banded iron formation (BIF). Sulphide-bearing quartz veins and related hydrothermal breccia bodies display a range of textures including sheared, boudinaged and recrystallised quartz, open space filling and microbreccia. These variable textures imply a complex history of crack-seal mechanism characterising the relation between mineral deposition and a major N-S-trending shear zone, during a late brittle-ductile deformation event which affected the area at about 550 Ma. Gold-base metal mineralisation is associated with brecciation and fracturing of the iron ore bands, close to silicified shears and related quartz veins. The auriferous quartz lodes are characterised by the occurrence of visible pyrite-chalcopyrite ± pyrrhotite ± sphalerite ± galena mineralisation. Gold is refractory in pyrite and chalcopyrite, but rare visible gold/electrum and telluride specks were observed in a few samples. Hydrothermal alteration includes pervasive silicification, pyritisation, sericitisation, carbonatisation confined to a delicate set of veins and altered shears, and a more widespread propylitic alteration assemblage (quartz + chlorite + pyrite + calcite ± epidote). Fluid inclusion petrography and microthermometric studies suggest heterogeneous trapping of a low-salinity (1.4-6.7 wt.% eq. NaCl) aqueous solution and a carbonic fluid. Evidence for fluid immiscibility during ore formation includes variable liquid/vapour ratios in inclusions along individual trails and bulk inclusion homogenisation into liquid and occasionally to vapour at comparable temperatures. The trapping conditions of intragranular aqueous-carbonic inclusions approximate 264-378 °C at 700-1300 bar. Similar temperature estimates have been obtained from Al

  15. Geochemistry and microprobe investigations of Abu Tartur REE-bearing phosphorite, Western Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Awadalla, Gamal S.

    2010-07-01

    Phosphorites in Egypt occur in the Eastern Desert, the Nile Valley and the Western Desert at Abu Tartur area and present in Duwi Formation as a part of the Middle Eastern to North African phosphogenic province of Late Cretaceous to Paleogene age (Campanian-Maastrichtian). The Maghrabi-Liffiya phosphorite sector is considered as the most important phosphorite deposits in the Abu Tartur area due to its large reserve thickness and high-grade of lower phosphorite bed beside high content of REE. Back scattered electron (BSE) images show framboidal pyrite filling the pores of the phosphatic grains, suggesting diagenetic reducing conditions during phosphorites formation. Electron Probe Micro Analyzer (EPMA) chemical mapping was conducted to examine the variation and distributions of selected elements (P, F, La, Fe, Yb, Si, Ce, W, Eu, S, Ca, Y and Er) within the shark teeth, coprolites and bone fragments. In the teeth W, S, Fe are concentrated along the axis of the teeth, the bone fragments show high concentration of W, Yb, Er and Eu, whereas coprolites are nearly homogenous in composition contains S, Er with some Si as micro-inclusions. Fluorapatite is considered as main phosphate mineral whereas pyrite occurs as pore-filling within the phosphatic grains and cement materials. Maghrabi-Liffiya samples show a wide range in the P 2O 5 content, between 19.8 wt.% and 29.8 wt.% with an average of 24.6 wt.% and shows low U content ranging from 15 ppm to 34 ppm with an average of 22 ppm. The total REE content in nine samples representing the Maghrabi-Liffiya ranges from 519 to 1139 ppm with an average of about 879 ppm. The calculation of LREE (La-Gd) show indeed a marked enrichment relative to the HREE (Tb-Lu) where LREE/HREE ratio attains 8.4 indicating a strong fractionation between the LREE and HREE. Chondrite-normalized REE patterns of the studied phosphorite samples show a negative Eu anomaly.

  16. Interruption of Onchocerca volvulus transmission in the Abu Hamed focus, Sudan.

    PubMed

    Higazi, Tarig B; Zarroug, Isam M A; Mohamed, Hanan A; Elmubark, Wigdan A; Deran, Tong Chor M; Aziz, Nabil; Katabarwa, Moses; Hassan, Hassan K; Unnasch, Thomas R; Mackenzie, Charles D; Richards, Frank; Hashim, Kamal

    2013-07-01

    Abu Hamed, Sudan, the northernmost location of onchocerciasis in the world, began community-directed treatment with ivermectin (CDTI) in 1998, with annual treatments enhanced to semiannual in 2007. We assessed the status of the parasite transmission in 2011 entomologically, parasitologically, and serologically. O-150 pool screening showed no parasite DNA in 17,537 black flies collected in 2011 (95% confidence interval upper limit [95% CI UL] = 0.023). Skin microfilariae, nodules, and signs of skin disease were absent in 536 individuals in seven local communities. Similarly, no evidence of Onchocerca volvulus Ov16 antibodies was found in 6,756 school children ≤ 10 years (95% CI UL = 0.03%). Because this assessment of the focus meets the 2001 World Health Organization (WHO) criteria for interrupted transmission, treatment was halted in 2012, and a post-treatment surveillance period was initiated in anticipation of declaration of disease elimination in this area. We provide the first evidence in East Africa that long-term CDTI alone can interrupt transmission of onchocerciasis. PMID:23690554

  17. Multifunction Instrument Tree (MIT) Neutron and Gamma Probe Acceptance for Beneficial Use (ABU)

    SciTech Connect

    CANNON, N.S.

    1999-08-08

    The multifunction instrument tree (MIT) probe program has been developed to modify existing Liquid Observation Well (LOW) neutron and gamma probes for use in the validation shafts of the two MITs installed in Tank 241-SY-101. One of the program objectives is that the modified MIT probes be completely compatible with the existing LOW van instrumentation and procedures. The major program objective is to produce neutron and gamma scans from Tank 241-SY-101 that would assist in evaluating waste feature structure and elevation. The MIT probe program is described in greater detail in the engineering task plan (HNF-3322). In accordance with the engineering task plan, a test plan (HNF-3595) was written, reduced diameter (allowing insertion into the MIT validation tube) neutron and gamma probes were acquired, an acceptance and operational test procedure (HNF-3838) was written, acceptance and operational testing of the MIT probes was performed, and a report of these test results (HNF-4369) has been issued. A number of neutron and gamma probe scans have been obtained from the Tank 241-SY-101 MITs, starting on February 8, 1999, in cooperation with Operations. Now that the MIT probes are fully demonstrated, this document transfers ownership of these probes to Operations, utilizing the final acceptance for beneficial use (ABU) form that follows in Section 3.0.

  18. Strong motion simulation at Abu Zenima city, Gulf of Suez, Egypt

    NASA Astrophysics Data System (ADS)

    Khalil, Amin Esmail

    2013-06-01

    Earthquake hazard assessments are an important task for the design of earthquake resistant structures and insurance industry. Such assessments get more importance when the site of interest is located near an active earthquake zone. Such situation is present for the location of Abu Zenima city. The city is characterized by the presence of industrial and Maritime platform in addition to other Oil production facilities. These industrial facilities motivated the present work. The simulated earthquake ground motion time histories are conducted using stochastic technique. The magnitude used for simulation is obtained using both probabilistic and deterministic approaches. An analysis using both approaches shows that moderate earthquakes in the vicinity of the site could have the largest effects on the area. Thus an earthquake of magnitude 4.5 at a distance of 21 km is chosen as design earthquake. The simulated ground motions are presented in terms of acceleration, velocity, and displacement time histories. In addition the response spectra are also presented that may be used for engineering purposes.

  19. Intrinsic and scattering attenuation in the crust of the Abu Dabbab area in the eastern desert of Egypt

    NASA Astrophysics Data System (ADS)

    Abdel-Fattah, Ali K.; Morsy, M.; El-Hady, Sh.; Kim, K. Y.; Sami, M.

    2008-05-01

    Fifty-five microearthquakes recorded by a digital-temporary seismic network in the Abu Dabbab area in the Eastern Desert of Egypt were used to estimate the direct S-wave ( Qβ), coda ( Qc), intrinsic ( Qi), and scattering quality factors ( Qs). Sato's [Sato H., 1977] single-scattering assumption was used to fit the amplitude envelopes of the coda at seven central frequency bands (1.5, 3, 6, 9, 12, 18, and 24 Hz), obtaining a Qc varying with frequency as generally observed in tectonically active areas. Lapse time dependence was also studied for the area, with the coda waves analyzed at window lengths ranging from 10 to 40 s starting from the onset of the S-wave arrival. The direct S-wave Qβ was estimated using the coda normalization method [Aki, K., 1980a]. The frequency dependence of Q was investigated for the direct S-waves and coda waves. Results show a low quality factor and a high frequency parameter, indicating that the upper lithosphere of the Abu Dabbab area is seismically active and heterogeneous. Using the independent estimates of Qc and Qβ, the intrinsic quality factor Qi was separated from the scattering quality factor. The results suggest that intrinsic dissipation plays a predominant role with respect to scattering phenomena in the area; the obtained Q values seem closer to those reported by analyzing volcano-tectonic earthquakes. This finding reflects that the cause of Abu Dabbab earthquake swarms might be igneous activity where the magma is ascending through joints or serpentinized joints that are dewatering.

  20. Antioxidant activity and mineral composition of three Mediterranean common seaweeds from Abu-Qir Bay, Egypt.

    PubMed

    Khairy, Hanan M; El-Sheikh, Mohamed A

    2015-09-01

    Antioxidant activity and mineral composition were evaluated seasonally from spring to autumn 2010 in the three common seaweeds Ulva lactuca Linnaeus (Chlorophyta), Jania rubens (Linnaeus) J.V. Lamouroux and Pterocladia capillacea (S.G. Gmelin) Bornet (Rhodophyta). The antioxidant activity was measured with β-carotene, total phenol content and DPPH (2,2-diphenyl-1-picrylhydrazyl). Seaweeds were collected from the rocky site near Boughaz El-Maadya Abu-Qir Bay of Alexandria, Egypt. The results showed maximum increase of β-carotene in P. capillacea during summer. A significant increase in total phenolic content at P ⩽ 0.05 was found in the red alga (J. rubens) during summer. Also, U. lactuca showed the maximum antioxidant scavenging activity especially during summer. Minerals in all investigated samples were higher than those in conventional edible vegetables. Na/K ratio ranged between 0.78 and 2.4 mg/100 g, which is a favorable value. All trace metals exceeded the recommended doses by Reference Nutrient Intake (RNI). During summer season, it was found that Cu = 2.02 ± 0.13 and Cr = 0.46 ± 0.14 mg/100 g in U. lactuca and Fe had a suitable concentration (18.37 ± 0.5 mg/100 g) in P. capillacea. The studied species were rich in carotenoids, phenolic compounds, DPPH free radicals and minerals, therefore, they can be used as potential source of health food in human diets and may be of use to food industry. PMID:26288568

  1. Antioxidant activity and mineral composition of three Mediterranean common seaweeds from Abu-Qir Bay, Egypt

    PubMed Central

    Khairy, Hanan M.; El-Sheikh, Mohamed A.

    2015-01-01

    Antioxidant activity and mineral composition were evaluated seasonally from spring to autumn 2010 in the three common seaweeds Ulva lactuca Linnaeus (Chlorophyta), Jania rubens (Linnaeus) J.V. Lamouroux and Pterocladia capillacea (S.G. Gmelin) Bornet (Rhodophyta). The antioxidant activity was measured with β-carotene, total phenol content and DPPH (2,2-diphenyl-1-picrylhydrazyl). Seaweeds were collected from the rocky site near Boughaz El-Maadya Abu-Qir Bay of Alexandria, Egypt. The results showed maximum increase of β-carotene in P. capillacea during summer. A significant increase in total phenolic content at P ⩽ 0.05 was found in the red alga (J. rubens) during summer. Also, U. lactuca showed the maximum antioxidant scavenging activity especially during summer. Minerals in all investigated samples were higher than those in conventional edible vegetables. Na/K ratio ranged between 0.78 and 2.4 mg/100 g, which is a favorable value. All trace metals exceeded the recommended doses by Reference Nutrient Intake (RNI). During summer season, it was found that Cu = 2.02 ± 0.13 and Cr = 0.46 ± 0.14 mg/100 g in U. lactuca and Fe had a suitable concentration (18.37 ± 0.5 mg/100 g) in P. capillacea. The studied species were rich in carotenoids, phenolic compounds, DPPH free radicals and minerals, therefore, they can be used as potential source of health food in human diets and may be of use to food industry. PMID:26288568

  2. Impact of lateral force-resisting system and design/construction practices on seismic performance and cost of tall buildings in Dubai, UAE

    NASA Astrophysics Data System (ADS)

    AlHamaydeh, Mohammad; Galal, Khaled; Yehia, Sherif

    2013-09-01

    The local design and construction practices in the United Arab Emirates (UAE), together with Dubai's unique rate of development, warrant special attention to the selection of Lateral Force-Resisting Systems (LFRS). This research proposes four different feasible solutions for the selection of the LFRS for tall buildings and quantifies the impact of these selections on seismic performance and cost. The systems considered are: Steel Special Moment-Resisting Frame (SMRF), Concrete SMRF, Steel Dual System (SMRF with Special Steel Plates Shear Wall, SPSW), and Concrete Dual System (SMRF with Special Concrete Shear Wall, SCSW). The LFRS selection is driven by seismic setup as well as the adopted design and construction practices in Dubai. It is found that the concrete design alternatives are consistently less expensive than their steel counterparts. The steel dual system is expected to have the least damage based on its relatively lesser interstory drifts. However, this preferred performance comes at a higher initial construction cost. Conversely, the steel SMRF system is expected to have the most damage and associated repair cost due to its excessive flexibility. The two concrete alternatives are expected to have relatively moderate damage and repair costs in addition to their lesser initial construction cost.

  3. Development of a surveillance scheme for equine influenza in the UK and characterisation of viruses isolated in Europe, Dubai and the USA from 2010-2012.

    PubMed

    Woodward, Alana L; Rash, Adam S; Blinman, Donna; Bowman, Samantha; Chambers, Thomas M; Daly, Janet M; Damiani, Armando; Joseph, Sunitha; Lewis, Nicola; McCauley, John W; Medcalf, Liz; Mumford, Jenny; Newton, J Richard; Tiwari, Ashish; Bryant, Neil A; Elton, Debra M

    2014-03-14

    Equine influenza viruses are a major cause of respiratory disease in horses worldwide and undergo antigenic drift. Several outbreaks of equine influenza occurred worldwide during 2010-2012, including in vaccinated animals, highlighting the importance of surveillance and virus characterisation. Virus isolates were characterised from more than 20 outbreaks over a 3-year period, including strains from the UK, Dubai, Germany and the USA. The haemagglutinin-1 (HA1) sequence of all isolates was determined and compared with OIE-recommended vaccine strains. Viruses from Florida clades 1 and 2 showed continued divergence from each other compared with 2009 isolates. The antigenic inter-relationships among viruses were determined using a haemagglutination-inhibition (HI) assay with ferret antisera and visualised using antigenic cartography. All European isolates belonged to Florida clade 2, all those from the USA belonged to Florida clade 1. Two subpopulations of clade 2 viruses were isolated, with either substitution A144V or I179V. Isolates from Dubai, obtained from horses shipped from Uruguay, belonged to Florida clade 1 and were similar to viruses isolated in the USA the previous year. The neuraminidase (NA) sequence of representative strains from 2007 and 2009 to 2012 was also determined and compared with that of earlier isolates dating back to 1963. Multiple changes were observed at the amino acid level and clear distinctions could be made between viruses belonging to Florida clade 1 and clade 2. PMID:24480583

  4. Depositional environments and sequence architecture of the Raha and Abu Qada formations (Cenomanian-Turonian), west central Sinai, Egypt

    NASA Astrophysics Data System (ADS)

    Anan, Tarek I.; El-Shahat, Adam; Genedi, Adel; Grammer, Michael

    2013-06-01

    Cenomanian-Turonian deposits are important reservoirs for many oil fields in the Western Desert and the Gulf of Suez region of Egypt. Study of the Raha and Abu Qada formations (Cenomanian-Turonian), from five dip-oriented outcrop locations in west central Sinai; indicates deposition of a mixed siliciclastic-carbonate system on a ramp setting. The inner ramp facies (bivalve and benthonic foraminiferal wackestone) grades northward to the mid ramp facies (echinoderm calcisphere packstone, and oyster floatstone), and outer ramp facies (planktonic foraminiferal wackestone and calcisphere wackestone). The two studied formations comprise one second-order depositional sequence (duration of approximately 10 Million years). This large scale sequence includes four third-order depositional sequences, three of which are observed in the Raha Formation, with the other one recorded in the Abu Qada Formation. Because west central Sinai was tectonically stable during the Cenomanian and Turonian, the main factor controlling the lateral and vertical distribution of facies tracts is likely due to changes in the relative sea level. The Cenomanian-Turonian boundary event is known as the largest oceanic anoxic event during the Cretaceous. This global event has been documented in three of the studied sections. The recorded δ13C excursions range from +3.04‰ to +5.24‰. These high positive excursions in δ13C are associated with highly negative values of δ18O (values range from -6.01‰ to -1.38‰).

  5. Delineation of the subsurface structures and basement surface of the Abu-Rodaym area, Southwestern Sinai, using ground magnetic data

    NASA Astrophysics Data System (ADS)

    Aboelkhair, Hatem; Rabei, Mostafa

    2013-07-01

    The present study deals with the analysis of data from a ground magnetic survey that was conducted in the Abu-Rodaym area of the Southwestern Sinai Peninsula, Egypt. This survey was carried out to delineate the subsurface structural framework, and to identify the thickness of the sedimentary basin of the study area. Locating these structures, and determining the localities of maximum sedimentary thicknesses that consist mainly of sandstone, serves as a preliminary process in exploring the confined aquifer beneath the surface of the Abu-Rodaym area. This will greatly benefit Bedouins who suffer greatly from a lack of water in the driest region in the country. The processing, analysis, and interpretation, of the total intensity magnetic data shows that there are three sets of faults striking mainly in the N-S, NW-SE, and NE-SW, directions. The depth to the basement surface was found to fluctuate from about 45 m, to more than 100 m, beneath the ground surface. It was also found that the variations in magnetic observations were produced by the striking structures that are mainly responsible for the variations in thicknesses of the sedimentary rocks in the area.

  6. A phylogenetically distinct Middle East respiratory syndrome coronavirus detected in a dromedary calf from a closed dairy herd in Dubai with rising seroprevalence with age

    PubMed Central

    Wernery, Ulrich; Rasoul, IHassab El; Wong, Emily YM; Joseph, Marina; Chen, Yixin; Jose, Shanty; Tsang, Alan KL; Patteril, Nissy Annie Georgy; Chen, Honglin; Elizabeth, Shyna K; Yuen, Kwok-Yung; Joseph, Sunitha; Xia, Ningshao; Wernery, Renate; Lau, Susanna KP; Woo, Patrick CY

    2015-01-01

    Middle East respiratory syndrome coronavirus (MERS-CoV) was detected by monoclonal antibody-based nucleocapsid protein-capture enzyme-linked immunosorbent assay (ELISA), RNA detection, and viral culture from the nasal sample of a 1-month-old dromedary calf in Dubai with sudden death. Whole genome phylogeny showed that this MERS-CoV strain did not cluster with the other MERS-CoV strains from Dubai that we reported recently. Instead, it formed a unique branch more closely related to other MERS-CoV strains from patients in Qatar and Hafr-Al-Batin in Saudi Arabia, as well as the MERS-CoV strains from patients in the recent Korean outbreak, in which the index patient acquired the infection during travel in the eastern part of the Arabian Peninsula. Non-synonymous mutations, resulting in 11 unique amino acid differences, were observed between the MERS-CoV genome from the present study and all the other available MERS-CoV genomes. Among these 11 unique amino acid differences, four were found in ORF1ab, three were found in the S1 domain of the spike protein, and one each was found in the proteins encoded by ORF4b, ORF5, envelope gene, and ORF8. MERS-CoV detection for all other 254 dromedaries in this closed dairy herd was negative by nucleocapsid protein-capture ELISA and RNA detection. MERS-CoV IgG sero-positivity gradually increased in dromedary calves with increasing age, with positivity rates of 75% at zero to three months, 79% at four months, 89% at five to six months, and 90% at seven to twelve months. The development of a rapid antigen detection kit for instantaneous diagnosis is warranted. PMID:26632876

  7. Gravity study of the Central African Rift system: A model of continental disruption 1. The Ngaoundere and Abu Gabra Rifts

    NASA Astrophysics Data System (ADS)

    Browne, S. E.; Fairhead, J. D.

    1983-05-01

    A regional compilation of published and unpublished gravity data for Central Africa is presented and reveals the presence of a major rift system, called here, the Central African Rift System. It is proposed that the junction area between the Ngaoundere and Abu Gabra rift arms in Western Sudan forms an incipient intraplate, triple-junction with the as yet unfractured, but domally uplifted and volcanically active, Darfur swell. It is only the Darfur swell that shows any similarities to the uplift and rift history of East Africa. The other two rifts arms are considered to be structurally similar to the early stages of passive margin development and thus reflect more closely the initial processes of continental fragmentation than the structures associated with rifting in East Africa.

  8. Burials from Wadi Mudayfa'at and Wadi Abu Khasharif, Southern Jordan - Results of a Survey and Salvage Excavations

    NASA Astrophysics Data System (ADS)

    Salameen, Zeyad al; Falahat, Hani

    This paper presents the preliminary results of a survey and excavation conducted in 2006 on small cemeteries at Wadi Mudayfa'at and Wadi Abu Khasharif, which are located c. 30 km southeast of the village of al-Hussayniah on the Desert Highway in southern Jordan. In total five graves were excavated. Preservation was excellent including human and other organic materials (hair, leather, textiles). Preliminary scientific dating points to the period between the second and fourth centuries AD. The research questions discussed are: - the date, the relationship between the cemeteries and surrounding sites, the significance of this area, the identity of the groups buried, the burial techniques and practices adopted and what influenced them and the funerary gifts included with the dead.

  9. Preliminary crustal deformation model deduced from GPS and earthquakes’ data at Abu-Dabbab area, Eastern Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Mohamed, Abdel-Monem S.; Hosny, A.; Abou-Aly, N.; Saleh, M.; Rayan, A.

    2013-06-01

    A local geodetic network consisting of eleven benchmarks has been established to study the recent crustal deformation in the Abu-Dabbab area. Seven campaigns of GPS measurements have been collected started from October 2008 and ended in March 2012. The collected data were processed using Bernese version 5.0, and the result values were adjusted to get the more accurate positions of the GPS stations. The magnitudes of horizontal displacements are variable from one epoch to another and in the range of 1-3 (±0.2) mm/yr. Due to the differences in rates of the horizontal displacement; the area is divided into two main blocks. The first one, moves to the east direction of about 3 mm/yr, while the second block, moves to the SW direction of about 6 mm/yr. According to the strain fields that were calculated for the different epochs of measurement, the main force is compression force and is taken the NW-SE to NWW-SEE direction. This force could be because of local and regional tectonic processes affecting on the study area. The maximum values of compression stress are found in the southern central and western part of study area. Estimated accumulation of this strain energy may be considered as an indicator of the possibility of earthquake occurrence. From the seismic tomography study, the 3D Vp and Vp/Vs crustal models indicate high Vp/Vs values forms an elongated anomaly, in the central part of the study area, that extends from a depth of 12 km to about 1-2 km of depth is obtained. By using this crustal model in relocations all seismicity informed that most of the seismicity strongly tend to occur in a cluster manner exactly above the southern part of the study area. Based on the conducted source mechanism study, it is noticed that shallow earthquakes are associated by a high CLVD ratio (up to 40%). Furthermore, initiation of a high level seismic activity, without a large seismic main shock is observed in the Abu-Dabbab area. The distribution of micro-earthquakes tends to

  10. Seismicity, arrival time delays of the seismic phases and slowness characteristics study in Abu Dabbab area, Egypt

    NASA Astrophysics Data System (ADS)

    Sami, Mahmoud; Hassoup, Awad; Hosny, Ahmed; Mohamed, Gadelkarem A.

    2013-12-01

    The temporal variations of seismicity from the Abu Dabbab area, 25 km west of the Red Sea coast, are collected from the Egyptian national seismic network (ENSN), which has magnified the detection capability in that area to ML < 1 earthquakes. These data show a sequence of the micro earthquake swarm during 2003-2011. This area has experienced larger shocks up to M = 6 during the 20th century and its seismicity is concentrated in a narrow spatial volume. We analyze the digital waveform data of about 1000 seismograms, recorded by portable network of 10 vertical component seismographs that are employed in a temporary survey experiment in the Abu Dabbab area in 2004, and the results indicate: firstly, there are similar waveform seismograms, which are classified into three groups. In each group a master event is identified. Then, the arrival time delays of the P and S phases (Δtp and Δts, respectively) are measured between the master event and its slave events. Δtp and Δts range between -0.01 and 0.02 s, respectively. These values are used to relocate the studied events. Secondly, the slowness vector (Δs) in 3-dimensional pattern, which is estimated using the genetic algorithms, is found Δsx = 0.0153, Δsy = 0.00093 and Δsz = 0.2086 s/km in the three spatial coordinates (X, Y and Z), respectively. These analyses demonstrate the inhomogeneities within the upper crust of the study area. Also, Δs shows little dependence of lateral distances and reasonably high slowness along the depth extent, which is consistent with the seismic velocity structure variations.

  11. 3D Crustal Structure and 3D-b-value in AbuDabbab Seismogenic Source, Northern Red Sea.

    NASA Astrophysics Data System (ADS)

    Al-Arifi, Nassir; El Kherpy, Sami; Koulakov, Ivan

    2014-05-01

    Abu Dabbab seismogenic source region is of unique seismic activity located on the Egyptian Red Sea coast. It's known as earthquake Cannons where the earthquakes are accompanied by a sound of distinct rumbling similar to the sound of a distant quarry blast which is heard by humans for several generations. Seismic activity of Abu Dabbab becomes very well determined after establishing of the Egyptian National Seismic Network 1997. Joint earthquake tomography inversion of local and regional data has been performed in order to image the crustal heterogeneity and the origin of the cannons earthquakes. Most previous studies suggested that this activity is of magmatic origin. We found the seismicity forms an arc shaped cluster that surrounds an aseismic block. This aseismic block has high velocities and a low Vp/Vs ratio. The origin of this seismic activity is probably due an active fault below the non-deformed block of Precambrian Igneous rock reaching a depth of ~10 km. Spatial mapping of the frequency magnitude distribution of the earthquakes and 3D-b-value indicate a strong variation moreover high b-value (1.4) at depth downward the rigid block. The Combined interpretation of the seismic imaging and 3D b-value in addition to the seismological and the geophysical observations revealed the tectonic origin of the earthquake activity in this area which is related strongly to the evolution of the crust in the Red Sea and its tectonic activity. KEYWARD:Three dimensional Crustal Structure - Seismic activity -Three-D b-value- Red Sea tectonics- Tectonic activity

  12. Solostamenides paucitesticulatus n. sp. (Monogenoidea: Mazocraeidea: Microcotylidae) from the freshwater mullet Liza abu (Heckel) (Mugiliformes: Mugilidae) from Atatürk Reservoir on the Euphrates River in southern Turkey.

    PubMed

    Kritsky, Delane C; Öktener, Ahmet

    2015-06-01

    Solostamenides paucitesticulatus n. sp. (Monogenoidea: Microcotylidae) from the gills of the abu mullet Liza abu (Heckel) in Atatürk Reservoir in southern Turkey is described. Among other features, the new species is easily distinguished from its three congeners, Solostamenides mugilis (Vogt, 1879), Solostamenides pseudomugilis (Hargis, 1956) and Solostamenides polyorchis Zhang & Yang, 2001, by having fewer hooks on the male copulatory organ (11 to 14), testes (5 to 9), and haptoral clamps (31 to 47). PMID:25962461

  13. Outbreaks of highly pathogenic avian influenza H5N1 clade 2.3.2.1c in hunting falcons and kept wild birds in Dubai implicate intercontinental virus spread.

    PubMed

    Naguib, Mahmoud M; Kinne, Jörg; Chen, Honglin; Chan, Kwok-Hung; Joseph, Sunitha; Wong, Po-Chun; Woo, Patrick C Y; Wernery, Renate; Beer, Martin; Wernery, Ulrich; Harder, Timm C

    2015-11-01

    Highly pathogenic avian influenza viruses (HPAIVs) of subtype H5N1 have continued to perpetuate with divergent genetic variants in poultry within Asia since 2003. Further dissemination of Asian-derived H5 HPAIVs to Europe, Africa and, most recently, to the North American continent has occurred. We report an outbreak of HPAIV H5N1 among falcons kept for hunting and other wild bird species bred as falcon prey in Dubai, United Arab Emirates, during the autumn of 2014. The causative agent was identified as avian influenza virus subtype H5N1, clade 2.3.2.1c, by genetic and phylogenetic analyses. High mortality in infected birds was in accordance with systemic pathomorphological and histological alterations in affected falcons. Genetic analysis showed the HPAIV H5N1 of clade 2.3.2.1c is a reassortant in which the PB2 segment was derived from an Asian-origin H9N2 virus lineage. The Dubai H5N1 viruses were closely related to contemporary H5N1 HPAIVs from Nigeria, Burkina-Faso, Romania and Bulgaria. Median-joining network analysis of 2.3.2.1c viruses revealed that the Dubai outbreak was an episode of a westward spread of these viruses on a larger scale from unidentified Asian sources. The incursion into Dubai, possibly via infected captive hunting falcons returning from hunting trips to central Asian countries, preceded outbreaks in Nigeria and other West African countries. The alarmingly enhanced geographical mobility of clade 2.3.2.1.c and clade 2.3.4.4 viruses may represent another wave of transcontinental dissemination of Asian-origin HPAIV H5 viruses, such as the outbreak at Qinghai Lake caused by clade 2.2 (‘Qinghai’ lineage) in 2005. PMID:26350163

  14. Hydrocarbon potential evaluation of the source rocks from the Abu Gabra Formation in the Sufyan Sag, Muglad Basin, Sudan

    NASA Astrophysics Data System (ADS)

    Qiao, Jinqi; Liu, Luofu; An, Fuli; Xiao, Fei; Wang, Ying; Wu, Kangjun; Zhao, Yuanyuan

    2016-06-01

    The Sufyan Sag is one of the low-exploration areas in the Muglad Basin (Sudan), and hydrocarbon potential evaluation of source rocks is the basis for its further exploration. The Abu Gabra Formation consisting of three members (AG3, AG2 and AG1 from bottom to top) was thought to be the main source rock formation, but detailed studies on its petroleum geology and geochemical characteristics are still insufficient. Through systematic analysis on distribution, organic matter abundance, organic matter type, organic matter maturity and characteristics of hydrocarbon generation and expulsion of the source rocks from the Abu Gabra Formation, the main source rock members were determined and the petroleum resource extent was estimated in the study area. The results show that dark mudstones are the thickest in the AG2 member while the thinnest in the AG1 member, and the thickness of the AG3 dark mudstone is not small either. The AG3 member have developed good-excellent source rock mainly with Type I kerogen. In the Southern Sub-sag, the AG3 source rock began to generate hydrocarbons in the middle period of Bentiu. In the early period of Darfur, it reached the hydrocarbon generation and expulsion peak. It is in late mature stage currently. The AG2 member developed good-excellent source rock mainly with Types II1 and I kerogen, and has lower organic matter abundance than the AG3 member. In the Southern Sub-sag, the AG2 source rock began to generate hydrocarbons in the late period of Bentiu. In the late period of Darfur, it reached the peak of hydrocarbon generation and its expulsion. It is in middle mature stage currently. The AG1 member developed fair-good source rock mainly with Types II and III kerogen. Throughout the geological evolution history, the AG1 source rock has no effective hydrocarbon generation or expulsion processes. Combined with basin modeling results, we have concluded that the AG3 and AG2 members are the main source rock layers and the Southern Sub-sag is

  15. Application of digital soil mapping in traditional soil survey - an approach used for the production of the national soil map of the United Arab

    NASA Astrophysics Data System (ADS)

    Abdelfattah, M. A.; Pain, C.

    2012-04-01

    Digital soil maps are essential part of the soil assessment framework which supports soil-related decisions and policy-making and therefore it is of crucial importance that they are of known quality. Digital soil mapping is perhaps the next great advancement in soil survey information. Traditional soil survey has always struggled with the collection of data. The amount of soil data and information required to justify the mapping product, how to interpolate date to similar areas, and how to incorporate older data are all challenges that need further exploration. The present study used digital soil mapping to develop a generalized national soil map of the United Arab Emirates with available recent traditional soil survey of Abu Dhabi Emirate (2006-2009) and Northern Emirates (2010-2012), together with limited data from Dubai Emirate, an important part of the country. The map was developed by joining, generalizing, and correlating the information contained in the Soil Survey of Abu Dhabi Emirate, the Soil map of Dubai with limited data, and the Soil Survey of the Northern Emirates. Because the soil surveys were completed at different times and with different standards and procedures, the original map lines and soil classifications had to be modified in order to integrate the three original maps and legends into this single national level map. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) version 2 was used to guide line placement of the map units. It was especially helpful for the Torripsamments units which are separated based on local landscape relief characteristics. A generalized soil map of the United Arab Emirates is produced, which consists of fifteen map units, twelve are named for the soil great group that dominants each unit. Three are named "Rock outcrop", "Mountains", or "Miscellaneous units". Statistical details are also presented. Soil great groups are appropriate taxa to use for soil

  16. A measure of community health needs and actions in a rural area of Iraq. The Abu-al-Khasib experience.

    PubMed

    Joseph, G; Sugathan, T N; Ramankutty, P; Alkafajei, A M; Antony, R; George, A; Habib, O S; Yacoub, A A; Mahmood, D A; Ajeel, N A

    1982-01-01

    A longitudinal enquiry was carried out among randomly selected households in four villages in Abu-al-Khasib district of Iraq, to study health needs as perceived by the community and actions people take when the need arises. Almost three-quarters of the spells of sickness as perceived by the community were among mothers and children. Most of the morbidity was found to be within the scope of preventive services at the local health centre level. Health centre services were underutilised. Only half of the spells of sickness were reported to the local health centres for medical care; a reason for this phenomenon is the emerging preference for care at the hands of clinical specialists. The action the community takes when a health need arises depends on their perception and this is determined by rapid social and educational development. The need to increase demand for normal care, especially that of mother and child, is stressed; this care may be strengthened through introduction of a domiciliary component. PMID:7179469

  17. Organic tracers in sediments from the coastal zone of Ras Abu el-Darag, Gulf of Suez

    NASA Astrophysics Data System (ADS)

    Rushdi, Ahmed I.; Kassim, Tarek A. T. A.; Simoneit, Bernd R. T.

    2009-10-01

    Sediment samples from the coastal zone of the Gulf of Suez contain a variety of organic compounds from anthropogenic and natural sources. A total of 12 surface samples of bottom sediments were collected with an Ekman grab sampler along an off-shore transect south of Ras Abu el-Darag. The samples were extracted with a mixture of dichloromethane and methanol (3:1 v/v) after drying and sieving through 250 μm mesh. The extracts were derivatized and analyzed by gas chromatography-mass spectrometry in order to characterize the chemical composition and sources of the organic components. Marine with minor terrestrial biota were the major natural sources of organic tracers and included n-alkanoic acids, sterols and saccharides (5.7-76.7%). Anthropogenic sources, from petroleum related activities, detergent usage for spill cleaning and littering, are indicated by the presence of n-alkanes with carbon preference index ≤1.0, hopanes, steranes, unresolved complex mixture of branched and cyclic hydrocarbons, alkyl nitriles, alkamides and plasticizers. Their total relative concentrations ranged from 23.3 to 97.3% of the total extracts. Petroleum residues from natural seepage may also be part of these hydrocarbons. The levels of anthropogenic inputs decrease from about 94% in coastal zone sediments to about 20% in sediments from the reef front.

  18. Total dissolved and total particulate copper in Abu-Kir bay a coastal Mediterranean basin under stress

    NASA Astrophysics Data System (ADS)

    Saad, M. A. H.; Badr, N. B.

    2003-05-01

    Abu-Kir Bay, a shallow semicircular basin east of Alexandria, has an area of 360 km^2, an average depth of 12 m and a volume of 4.32 km^3. It receives Nile water. brackish lakewater and highly polluted industrial waters. Vertical water samples were collected seasonally from the bay for studying the distribution of total dissolved copper (TDCu), total suspended matter (TSM) and total particulate copper (TPCu). The depth differences of TDCu values were associated with variations in salinities between the water layers. The increase in TDCu content at low salinity in the mixed zone is due to local anthropogenic input from Lake Edku. The stepwise regression model shows that pH was the main factor controlling the TDCu variations, especially at Tabia Sector (TS). Copper was transported mainly to the bay in particulate form, following the considerable input of TSM. During friction of the in-and outflowing water layers with different salinities at the Maadia Sector (MS), a complicated adsorption/desorption behavior of TSM could be expressed as a result of changes in pH, ionic Srength and solution composition. The enrichment of TpCu near the outfalls decreased gradually seaward. A significant positive correlation existed between TPCu and TSM in the surfixe layer of TS.

  19. Hybrid DWT-DCT-Hash function based digital image watermarking for copyright protection and content authentication of DubaiSat-2 images

    NASA Astrophysics Data System (ADS)

    Al-Mansoori, Saeed; Kunhu, Alavi

    2014-10-01

    This paper presents a new technique for copyright protection and content authentication of satellite images. The novelty in the presented approach consists in designing a hybrid Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT) and hash function based digital image watermarking. In this study, two watermarks are embedded in the cover image called robust copyright watermark and fragile authentication watermark. The robust watermark is embedded in hybrid frequency and wavelet domain by applying DWT and DCT respectively. Such two steps embedding allows the proposed approach to provide better imperceptibility in harmony with the human visual system and offers higher robustness against signal processing attacks. Subsequently, the fragile watermark is embedded in a spatial domain using the hash function approach. The proposed hybrid watermarking technique has been tested on DubaiSat-2 images with 1 meter resolution. The experimental results show that the proposed method is robust against JPEG compression, rotation and resizing attacks. In addition, the multi-watermarked image has a good transparency and the fragile watermark is sensitive to any tampering.

  20. Two new hemoglobin variants: Hb Aix-Les-Bains [β5(A2)Pro→Leu; HBB:c.17 C>T] and Hb Dubai [α122(H5)His→Leu (α2); HBA2:c.368 A>T].

    PubMed

    Joly, Philippe; Garcia, Caroline; Lacan, Philippe; Couprie, Nicole; Francina, Alain

    2011-01-01

    We report two new hemoglobin (Hb) variants; one causing an impairment of the N-terminal glycation of the β-globin chain and the other a hematological phenotype of α-thalassemia (α-thal). The first variant is Hb Aix-les-Bains [β5(A2)Pro→Leu] and the second Hb Dubai [α122(H5)His→Leu (α2)]. These two new Hb variants were detected by chromatographic and electrophoretic methods and characterized by molecular studies. Hb Dubai gives an α-thalassemic phenotype and should be routinely detected for preventing severe Hb H disease in couples at-risk for α-thal. PMID:21417572

  1. Organic geochemical characteristics of the Lower Cretaceous Abu Gabra Formation in the Great Moga oilfield, Muglad Basin, Sudan: Implications for depositional environment and oil-generation potential

    NASA Astrophysics Data System (ADS)

    Makeen, Yousif M.; Abdullah, Wan Hasiah; Hakimi, Mohammed Hail; Elhassan, Osman M. A.

    2015-03-01

    Organic-rich sediments within the Abu Gabra Formation from three wells in the Great Moga oilfield were analyzed using organic geochemistry and organic petrology. The analyzed samples generally contain more than 2.0 wt.% TOC and have a very good to excellent hydrocarbon generative potential. This is supported by high bitumen extract and hydrocarbon (HCs) yields with values exceeding 4000 and 2000 ppm, respectively. The Abu Gabra also have moderate to high hydrogen index (HI) values of 287-865 mg HC/g TOC and large amounts of amorphous organic matter and alginite, consistent with oil-prone Types I and Type II kerogen. Vitrinite reflectance (0.59-0.72) %Ro and pyrolysis Tmax (430-438 °C) indicate an early oil window stage. This is supported by bitumen/TOC ratios (0.04-0.09) and biomarker thermal maturity parameters with equilibrium C32 homohopane 22S/(22S + 22R) ratios (0.50-58), moretane/hopane (0.11-018) and C29ββ/(ββ + αα) (0.53-0.73) and 20S/(20S + 20R) ratios (0.26-0.48). The biomarkers are characterized by a dominance of low to medium molecular weight n-alkane compounds with significant waxy alkanes (n-C25-n-C34), moderately high Pr/Ph ratios (1.17-2.51), high abundance of C27 regular steranes, high C27/C29 regular sterane ratios, the presence of tricyclic terpanes and relatively low sterane/hopane ratios. These data indicate that the organic-rich sediments of the Abu Gabra Formation contain a mixture of aquatic (algal and bacterial) and terrigenous organic matter, deposited in a lacustrine environment and preserved under suboxic conditions.

  2. Impact of soil and groundwater corrosion on the Hierakonpolis Temple Town archaeological site, Wadi Abu Sufian, Idfu, Egypt.

    PubMed

    El-Shishtawy, A M; Atwia, M G; El-Gohary, A; Parizek, R R

    2013-06-01

    Hierakonpolis, Greek for City of the Hawk, nearly 25 km NW of Idfu (Egypt), is an important and extensive archaeological discovery covering a large area. Its richness in archaeological artifacts makes it a valuable site. It has a valid claim to be the first nation state, as indicated by the Palette of Narmer discovered in its main mound. Geological and hydrogeological investigations at the Hierakonpolis Temple Town site documented nearly a 4.0-m water table rise from as early as 1892 to the present. In addition to the rising water levels, the increase of both subsoil water salinity and humidity threatens and damages fragile carvings and paintings within tombs in Kingdom Hill, the foundation stability of the site, and the known and still to be discovered artifact that recent pottery finds dates at least 4,000 BCE. Representative rock and soil samples obtained from drilled cores in the study area were chosen for conducting detailed grain size and X-ray analysis, light and heavy mineral occurrences, distribution of moisture and total organic matter, and scanning electron microscopy investigations. Mineralogical analysis of clays indicated that the soil samples are composed of smectite/illite mixed layers with varying proportions of smectite to illite. Kaolinite is the second dominant clay constituent, besides occasional chlorite. Swelling of the clay portion of the soil, due to the presence of capillary groundwater, in contact with buried mudbrick walls expands and causes severe damage to important exposed and buried mudbrick structures, including the massive ancient "fort" believed to date from the Second Dynasty (from 2,890 to 2,686 BC). The "fort" is 1.0 km south of the Temple Town mounds near to confluence of Wadi Abu Sufian. Groundwater samples from the shallow aquifer close by the intersection of Wadi Abu Sufian and the Nile flood plain were analyzed for chemical composition and stable isotope ratios. The groundwater in the upper zone (subsoil water) within fine

  3. Effect of cyclone Nilofar on mesospheric wave dynamics as inferred from optical nightglow observations from Mount Abu, India

    NASA Astrophysics Data System (ADS)

    Singh, Ravindra P.; Pallamraju, Duggirala

    2016-06-01

    Mesospheric nightglow intensities at three emissions (O2(0-1), OH(6-2) bands, and Na(589.3 nm)) from a low-latitude location, Gurushikhar, Mount Abu (24.6°N, 72.8°E), in India, showed similar wave features on 26 October 2014 with a common periodicity of around 4 h. A convective activity due to the cyclone Nilofar, which had developed in the Arabian Sea during 25-31 October 2014, was found to be the source as this too showed a gravity wave period coherent with that of the mesospheric emissions on the 26th. The periodicities at the source region were obtained using outgoing longwave radiation fluxes (derived from Kalpana-1 satellite) which were used as a tracer of tropospheric activity. Cyclone Nilofar had two centers located at a distance of 1103 and 1665 km from the observational station. From the phase offset in time between residuals of O2 and OH emission intensities and the observed common periodicity the vertical phase speed and wavelength have been found to be 1.13 ms-1 and 16.47 km. From the wavelet analyses it is seen that the travel time of the wave from the convection region to O2 emission height was around 8.1 h. From these observations the horizontal phase speed and wavelength of the wave in the mesosphere were calculated to be 37.8 ms-1 and 553 km. These results thus provide not only unambiguous evidence on the vertical coupling of atmospheres engendered by the tropical cyclone Nilofar but also the characteristics of waves that exist during such cyclonic events.

  4. OPTICAL POLARIMETRY OF THE BLAZAR CGRaBS J0211+1051 FROM MOUNT ABU INFRARED OBSERVATORY

    SciTech Connect

    Chandra, Sunil; Baliyan, Kiran S.; Ganesh, Shashikiran; Joshi, Umesh C.

    2012-02-10

    We report the detection of high polarization in the first detailed optical linear polarization measurements on the BL Lac object CGRaBS J0211+1051, which flared in {gamma}-rays on 2011 January 23 as reported by Fermi. The observations were made during 2011 January 30-February 3 using a photo-polarimeter mounted at the 1.2 m telescope of Mount Abu Infrared Observatory. CGRaBS J0211+1051 was detected to have a {approx}21.05% {+-} 0.41% degree of polarization (DP) with a steady position angle (P.A.) at 43 Degree-Sign on 2011 January 30. During January 31 and February 1, while polarization shows some variation, the P.A. remained steady through the night. Several polarization flashes occurred during February 2 and 3 resulting in changes in the DP by more than 4% at short timescales ({approx}17-45 minutes). The intra-night variability shown by the source appears to be related to the turbulence in the relativistic jet. A mild wavelength dependence of polarization is not ruled out during the nights of February 2 and 3. The source exhibited significant inter-night variations in the DP (changing by about 2%-9%) and P.A. (changing by 2 Degree-Sign -22 Degree-Sign ) during the five nights of observations. A sudden change in the P.A. accompanied by a rise in the DP could be indicative of the fresh injection of plasma in the jet. The detection of a high and variable DP suggests that the source is a low-energy peaked blazar.

  5. The stinging Apidae and Vespidae (Hymenoptera: Apocrita) in Iranian islands, Qeshm, Abu-Musa, Great Tunb and Lesser Tunb on the Persian Gulf

    PubMed Central

    Khoobdel, Mehdi; Tavassoli, Maryam; Salari, Mehdi; Firozi, Fateme

    2014-01-01

    Objective To study the stinging flying Hymenoptera (Apidae and Vespidae) fauna in four Iranian Islands, Qeshm, Greater Tunb, Lesser Tunb and Abu-Musa on the Persian Gulf. Methods The flies were captured by used of Malaise trap, fly trap, bottle trap and insect net-hashing from March 2011 to July 2012. Results In this study, 11 species of stinging Hymenoptera were reported for the first time in Persian Gulf region. Conclusions Some of this species such as Vespa orientalis and Polistes olivaceus are more common in the Persian Gulf islands and can cause clinical problem to islands resident and travelers. PMID:25183092

  6. The application of petrophysics to resolve fluid flow units and reservoir quality in the Upper Cretaceous Formations: Abu Sennan oil field, Egypt

    NASA Astrophysics Data System (ADS)

    Lala, Amir Maher Sayed; El-sayed, Nahla Abd El-Aziz

    2015-02-01

    Petrophysical flow unit concept can be used to resolve some of the key challenges faced in the characterization of hydrocarbon reservoirs. The present study deals with petrophysical evaluation of some physical properties of the Upper Cretaceous rock samples obtained from the Abu-Roash and the Bahariya Formations at southwest of Sennan oil field in the Western Desert of Egypt. The aim of this study was achieved through carrying out some petrophysical measurements of porosity, bulk density, permeability, mean hydraulic radius (Rh), irreducible water saturation, and radius of pore throat at mercury saturation of 35% in order to determine reservoir characteristics. In this study, the relationships obtained between the measured petrophysical properties such as porosity, permeability and pore throat flow unit types were established for 53 sandstone core samples obtained from two different stratigraphic units. Flow zone indicator (FZI) has been calculated to quantify the flow character of the Abu-Roash and Bahariya reservoir rocks based on empirically derived equations of robust correlation coefficients. The correlations among porosity, permeability, bulk density, mean hydraulic radius and pore throat flow properties reflect the most important reservoir behavior characteristics. The calculated multiple regression models indicate close correlation among petrophysical properties and Rh and R35%. The obtained models are able to predict Rh and R35% by using porosity and permeability, to map reservoir performance and predict the location of stratigraphic traps.

  7. 3-D seismology in the Arabian Gulf

    SciTech Connect

    Al-Husseini, M.; Chimblo, R.

    1995-08-01

    Since 1977 when Aramco and GSI (Geophysical Services International) pioneered the first 3-D seismic survey in the Arabian Gulf, under the guidance of Aramco`s Chief Geophysicist John Hoke, 3-D seismology has been effectively used to map many complex subsurface geological phenomena. By the mid-1990s extensive 3-D surveys were acquired in Abu Dhabi, Oman, Qatar and Saudi Arabia. Also in the mid-1990`s Bahrain, Kuwait and Dubai were preparing to record surveys over their fields. On the structural side 3-D has refined seismic maps, focused faults and fractures systems, as well as outlined the distribution of facies, porosity and fluid saturation. In field development, 3D has not only reduced drilling costs significantly, but has also improved the understanding of fluid behavior in the reservoir. In Oman, Petroleum Development Oman (PDO) has now acquired the first Gulf 4-D seismic survey (time-lapse 3D survey) over the Yibal Field. The 4-D survey will allow PDO to directly monitor water encroachment in the highly-faulted Cretaceous Shu`aiba reservoir. In exploration, 3-D seismology has resolved complex prospects with structural and stratigraphic complications and reduced the risk in the selection of drilling locations. The many case studies from Saudi Arabia, Oman, Qatar and the United Arab Emirates, which are reviewed in this paper, attest to the effectiveness of 3D seismology in exploration and producing, in clastics and carbonates reservoirs, and in the Mesozoic and Paleozoic.

  8. Variation in the size structure of corals is related to environmental extremes in the Persian Gulf.

    PubMed

    Bauman, Andrew G; Pratchett, Morgan S; Baird, Andrew H; Riegl, Bernhard; Heron, Scott F; Feary, David A

    2013-03-01

    The size structure of coral populations is the culmination of key demographic events, including recruitment, mortality and growth, thereby providing important insights to recent ecological dynamics. Importantly, the size structure of corals reflects both intrinsic (inherent life-history characteristics) and extrinsic (enhanced mortality due to chronic or acute disturbances) forcing on local populations, enabling post-hoc assessment of spatial and taxonomic differences in susceptibility to disturbance. This study examined the size structure of four locally abundant corals (Acropora downingi, Favia pallida, Platygyra daedalea, and massive Porites spp.) in two regions of the Persian Gulf: the southern Gulf (Dubai and Abu Dhabi) and eastern Gulf (western Musandam). Significant and consistent differences were apparent in mean colony sizes and size-distributions between regions. All corals in the southern Gulf were significantly smaller, and their size structure positively skewed and relatively more leptokurtic (i.e., peaky) compared to corals in the eastern Gulf. Sea surface temperatures, salinity, and the recent frequency of mass bleaching are all higher, in the southern Gulf, suggesting higher mortality rates and/or slower growth in these populations. Differences in size structure between locations were more pronounced than differences between species at each location, suggesting that extreme differences in environmental conditions and disturbance events have a greater influence on population dynamics in the Gulf than inherent differences in their life-history characteristics. PMID:23245870

  9. Mapping of Coral Reef Environment in the Arabian Gulf Using Multispectral Remote Sensing

    NASA Astrophysics Data System (ADS)

    Ben-Romdhane, H.; Marpu, P. R.; Ghedira, H.; Ouarda, T. B. M. J.

    2016-06-01

    Coral reefs of the Arabian Gulf are subject to several pressures, thus requiring conservation actions. Well-designed conservation plans involve efficient mapping and monitoring systems. Satellite remote sensing is a cost-effective tool for seafloor mapping at large scales. Multispectral remote sensing of coastal habitats, like those of the Arabian Gulf, presents a special challenge due to their complexity and heterogeneity. The present study evaluates the potential of multispectral sensor DubaiSat-2 in mapping benthic communities of United Arab Emirates. We propose to use a spectral-spatial method that includes multilevel segmentation, nonlinear feature analysis and ensemble learning methods. Support Vector Machine (SVM) is used for comparison of classification performances. Comparative data were derived from the habitat maps published by the Environment Agency-Abu Dhabi. The spectral-spatial method produced 96.41% mapping accuracy. SVM classification is assessed to be 94.17% accurate. The adaptation of these methods can help achieving well-designed coastal management plans in the region.

  10. Analysis of Urban Expansion of the Resort City of Al Ain Using Remote Sensing and GIS

    NASA Astrophysics Data System (ADS)

    Issa, S.; Al Shuwaihi, A.

    2009-12-01

    The urban growth of AL Ain city has been investigated using remote sensing data for three different dates, 1972, 1990 and 2000. We used three Landsat images together with socio-economic data in a post-classification analysis to map the spatial dynamics of land use/cover changes and identify the urbanization process in Al Ain resort city, United Arab Emirates. Land use/cover statistics, extracted from Landsat Multi-spectral Scanner (MSS). Thematic Mapper (TM) and Enhanced Thematic Mapper plus (ETM +) images for 1972. 1990 and 2000 respectively, revealed that the built-up area has expanded by about 170.53km2. The city was found to have a tendency for major expansion in four different directions: along the Abu Dhabi highway, along Dubai highway, Myziad direction and Hafeet recreational area. Expansion in any direction was found to be governed by the availability of road network, suitability for construction, utilities, economic activities, geographical constraints, and legal factors (boundary with Sultanate of Oman). The road network in particular has influenced the spatial patterns and structure of urban development, so that the expansion of the built-up areas has assumed an accretive as well as linear growth along the major roads. The research concludes that the development is based on conservation of agricultural areas (oases) and reclamation of the desert for farming and agricultural activities. The integration of remote sensing and GIS was found to be effective in monitoring LULC changes and providing valuable information necessary for planning and research.

  11. Assimilation of SCIAMACHY total column CO observations: Global and regional analysis of data impact

    NASA Astrophysics Data System (ADS)

    Tangborn, Andrew; Stajner, Ivanka; Buchwitz, Michael; Khlystova, Iryna; Pawson, Steven; Burrows, John; Hudman, Rynda; Nedelec, Philippe

    2009-04-01

    Carbon monoxide (CO) total column observations from the Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) on board Envisat-1 are assimilated into the Global Modeling and Assimilation Office constituent assimilation system for the period 1 April to 20 December 2004. The impact of the assimilation on CO distribution is evaluated using independent surface flask observations from the National Oceanic and Atmospheric Administration (NOAA)/ESRL global cooperative air sampling network and Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) in situ CO profiles. Assimilation of SCIAMACHY data improves agreement of CO assimilation with both of these data sets on both global and regional scales compared to the free-running model. Regional comparisons with MOZAIC profiles made in western Europe, the northeastern United States, and the Arabian Peninsula show improvements at all three locations in the free troposphere and into the boundary layer over Arabia and the northeastern United States. Comparisons with NOAA Earth System Research Laboratory data improve at about two thirds of the surface observation sites. The systematic model errors related to the uncertainty of CO surface sources and the chemistry of CO losses are investigated through experiments with increased surface CO emissions over the Arabian Peninsula and/or globally reduced hydroxyl radical (OH) concentrations. Both model changes decrease mean CO errors at all altitudes in comparison to MOZAIC data over Dubai and Abu Dhabi. In contrast, errors in the assimilated CO are reduced by the increased emissions for pressures ≥800 hPa and by the reduced OH for pressures ≤600 hPa. Our analysis suggests that CO emissions over Dubai in 2004 are more than double those in the 1998 emissions inventory.

  12. 3D Depositional Model in a Complex Incised Valley Fill: An Example from the Late Messinian Abu Madi Formation, Nile Delta Basin, Egypt

    NASA Astrophysics Data System (ADS)

    Nasr El-Deen Badawy, A. M. E. S.

    2015-12-01

    The study area lies in the Central Marine Delta, which is located in the Baltim offshore concession, about 25 kms from the shoreline and 40 kms North Abu Madi-El Qara fields. The current study is aiming to give a comprehensive combined and conjugated study between well data and seismic survey interpretations. The former includes well logging data, acquired results of actual drilling and biostratigraphic study, to give an integrated picture for the considered area in a true attempt to visualize the geological and geophysical data given from both wells and seismic reflection surveys, and hence introduce an updated sequence stratigraphic framework for the Messinian sequence at the offshore Nile Delta area. The 3D geological model, based on all the available well data (faunal contents, litho-facies, log signatures…...etc.) and the seismic expressions (facies and geometry), has been constructed for the study area. This model shows that, the study area was changed from shelf (considered as erosional), to delta channels and then directed to the north. It changed to delta front mouth bars on the shoreface and affected by the main Rosetta fault to collect deposits as sand bars in the southern part on the downthrown side of the fault. Most deposits on this face were highstand system tracts. This deduced from the sequence stratigraphy study. The area was then sloped to the north, as shelf slope with the deposition of slumps, which was formed during erosions and mass flows. Some mud diapers also formed upon this slope. After dropping the sea level with the activity of some syn-sedimentary faults, some channels with sediment supply started their activities to dig their ways to the north.

  13. Magmatic and solid state structures of the Abu Ziran pluton: Deciphering transition from thrusting to extension in the Eastern Desert of Egypt

    NASA Astrophysics Data System (ADS)

    Fritz, Harald; Loizenbauer, Jürgen; Wallbrecher, Eckart

    2014-11-01

    The 606 Ma old Abu Ziran granite of the Eastern Desert of Egypt intruded the southern margin of the Meatiq dome in a sinistral shear extensional setting. Its emplacement was enabled by a system of NW-trending sinistral shears, related Riedel shears and N-S extensional shear zones and faults. Magmatic flow was east-directed and controlled by Riedel shears that progressively rotated to an orientation favourable for extension. Strain markers that document magmatic flow show eastward decreasing strain together with strain increase from pluton centre to margins. This is explained by Newtonian flow between non-parallel plates and differences in flow velocities across the pluton. Solid state fabrics including shear fabrics, orientation of late magmatic dykes and quartz tension gashes, together with quartz C-axes distributions, document southward extensional shear within the solidified pluton and adjacent host rocks. Extensional shear is correlated with exhumation of the Meatiq dome coeval and soon after pluton solidification (585 Ma). Pressure temperature evolutionary paths, derived from fluid inclusions, show a clockwise path with exhumation by isothermal decompression in the Meatiq dome. By contrast, the overlying volcanosedimentary nappes experienced an anti-clockwise path released by temperature rise due to pluton emplacement followed by isobaric cooling. Quartz fabrics indicate high-temperature coaxial N-S flow in the northern Meatiq dome and lower-temperature, non-coaxial southward flow within the overlaying superficial nappe. This is explained by the exhumation process itself that progressively localised into simple shear domains when rocks approached higher crustal levels. Late extension at ca. 580 Ma was pure shear dominated and resulted in reversal of shear, now dextral, in the western Meatiq shear zone.

  14. Facies dimensions within carbonate reservoirs - guidelines from satellite images of modern analogs

    SciTech Connect

    Harris, P.M.; Kowalik, W.S.

    1995-08-01

    Modern analogs illustrate the distribution of carbonate facies within an overall depositional setting and can be an integral part of a subsurface geologic model in indicating the dimensions, trend, and interrelationships of facies that might be related to reservoir and non-reservoir distribution. Satellite images from several modern carbonate areas depict the geologic characteristics that can be expected in ancient shallow-water settings. Isolated carbonate platforms- the Bahamas, Caicos Platform in the British West Indies, Chinchorro Bank offshore of Yucatan, and portions of the Belize area; Ramp-style shelf-to-basin transitions - Abu Dhabi and northern Yucatan; Rimmed shelf margins - South Florida, portions of Belize, and the Great Barrier Reef of Australia; Broad, deep shelf lagoons - the Great Barrier Reef and Belize; Reef variability - South Florida, the Bahamas, Caicos, Northern Yucatan, and Abu Dhabi; Shallow lagoon/tidal flat settings - South Florida, the Bahamas, Caicos, Northern Yucatan, Shark Bay in Western Australia, Abu Dhabi; Mixed carbonate and siliciclastic depostion - South Florida, Belize, the Great Barrier Reef, Shark Bay and Abu Dhabi. The geologic framework as illustrated by these areas is important at the development scale where lateral variation of porosity and permeability, i.e. reservoir quality, is commonly tied to facies changes and facies dimensions are required as input to reservoir models. The geologic framework is essential at the exploration scale for reservoir facies prediction and stratigraphic play concepts which are related directly to depositional facies patterns.

  15. Shock: South Korea wins Battle of nuclear titans

    SciTech Connect

    2010-03-15

    A South Korean consortium won the contract to build and operate four nuclear power plants in Abu Dhabi valued at $20.4 billion. The deal was significant since it is the first major nuclear contract of its kind awarded in the rapidly growing Persian Gulf region, and signals the rise of Korea as an exporter of nuclear know-how.

  16. The Relationship between English Language Proficiency, Academic Achievement and Self-Esteem of Non-Native-English-Speaking Students

    ERIC Educational Resources Information Center

    Dev, Smitha; Qiqieh, Sura

    2016-01-01

    The present study aims to find out the relationship between English Language proficiency, self-esteem, and academic achievement of the students in Abu Dhabi University (ADU). The variables were analyzed using "t" test, chi-squire and Pearson's product moment correlation. In addition, Self-rating scale, Self-esteem inventory and Language…

  17. Teaching across the Great Divide

    ERIC Educational Resources Information Center

    O'Neill, K. Kathleen

    2010-01-01

    In this article, the author illustrates the significant role that communication plays in the success of team-teaching where her co-teacher is nearly 12,000 miles and two continents away. The author teaches business communication to female undergraduates in the College of Business Sciences at Zayed University, Abu Dhabi, United Arab Emirates, while…

  18. The Culture of Witnessing: War Correspondents Rewriting the History of the Iraq War

    ERIC Educational Resources Information Center

    Mellor, Noha

    2012-01-01

    Building on Zelizer's framework of analyzing journalism and memory, this article aims to analyze Arab journalists' narratives of the Iraq War. Through scrutinizing four selected narratives, published by four pan-Arab journalists from three different transnational satellite channels (Abu Dhabi TV, Al Jazeera and Al Manar), I aim to show how their…

  19. The Social Cognitive Model of Job Satisfaction among Teachers: Testing and Validation

    ERIC Educational Resources Information Center

    Badri, Masood A.; Mohaidat, Jihad; Ferrandino, Vincent; El Mourad, Tarek

    2013-01-01

    The study empirically tests an integrative model of work satisfaction (0280, 0140, 0300 and 0255) in a sample of 5,022 teachers in Abu Dhabi in the United Arab Emirates. The study provided more support for the Lent and Brown (2006) model. Results revealed that this model was a strong fit for the data and accounted for 82% of the variance in work…

  20. Pedagogy and Culture: An Educational Initiative in Supporting UAE Nursing Graduates Prepare for a High-Stakes Nurse Licensing Examination

    ERIC Educational Resources Information Center

    Brownie, Sharon M.; Williams, Ged; Barnewall, Kate; Bishaw, Suzanne; Cooper, Jennifer L.; Robb, Walter; Younis, Neima; Kuzemski, Dawn

    2015-01-01

    Graduates of an Abu Dhabi transnational nursing degree struggled with the mandatory national licensing examination. Poor pass rates undermine graduate career futures and impact on the workforce capacity building contributions of the partnering transnational educational providers. This paper describes how the design and delivery of an intensive…

  1. Scholars, Spies, and Global Studies

    ERIC Educational Resources Information Center

    Dirks, Nicholas B.

    2012-01-01

    No one doubts that globalization is one of the most important trends of today. As American universities expand their global footprint with branch campuses in Singapore, Abu Dhabi, and elsewhere, many faculty are concerned about oppressive governance, human-rights violations, and lack of academic freedom abroad. Meanwhile administrators grapple…

  2. "The Fruits of Intellectual Labor": International Student Views of Intellectual Property

    ERIC Educational Resources Information Center

    Datig, Ilka; Russell, Beth

    2015-01-01

    In this paper, we report on the results of a study conducted at New York University Abu Dhabi in the fall of 2013. Our goal in the study was to gain a global college student perspective on issues related to intellectual property, including copyright and plagiarism. We found that, contrary to popular opinion, most of our students have a solid…

  3. Home-School Relationships: A School Management Perspective

    ERIC Educational Resources Information Center

    Stringer, Patricia; Hourani, Rida Blaik

    2013-01-01

    Abu Dhabi, United Arab Emirates (UAE) is in the process of initiating major education reform designed to improve schools. Parental involvement in support of student learning ranks high on the reform agenda. This study explores managerial aspects of implementing home-school relationships in seven primary Public Private Partnership (PPP) schools in…

  4. Biogeochemistry of aragonite mud and oolites.

    NASA Technical Reports Server (NTRS)

    Mitterer, R. M.

    1972-01-01

    Amino acids were determined on an analyzer similar to that described by Hare (1969) in carbonate mud samples from locations in the Bahamas, Bermuda, Persian Gulf, and Florida Bay, and in oolites from the Gulf of Suez, the Abu Dhabi coast, the Bahamas, and Baffin Bay, Texas. A histogram, tables, and chromatograms of the results are given.

  5. Participative Decision-Making and Job Satisfaction for Teachers in the UAE

    ERIC Educational Resources Information Center

    Al Nuaimi, Samira; Chowdhury, Hossan; Eleftheriou, Konstantinos; Katsioloudes, Marios I.

    2015-01-01

    Purpose: Knowledge of teachers' participative decision making (PDM) and job satisfaction (JS) is important, as teachers comprise most of a school's staff. The purpose of this paper is to examine the effect of teacher gender, nationality and school type on teachers' PDM and JS in Abu Dhabi's schools and to determine whether there any significant…

  6. A New Model for American Colleges Abroad: Quiet Partner

    ERIC Educational Resources Information Center

    Mills, Andrew

    2009-01-01

    For the past two years, a steady stream of visitors from the Massachusetts Institute of Technology (MIT) has made the roughly 7,000-mile trek from Cambridge to Abu Dhabi to help build what aspires to be the first graduate-level research university devoted entirely to fostering renewable, clean, and sustainable sources of energy. Set to open this…

  7. Transformation of Roles and Responsibilities of Principals in Times of Change

    ERIC Educational Resources Information Center

    Stringer, Patricia; Hourani, Rida Blaik

    2016-01-01

    Schools in Abu Dhabi are going through transformation and reform. The New School Model (2010) introduced changes to the curriculum and teaching and learning methodologies. In line with these changes, recently introduced "Principal Professional Standards" and "Performance Evaluation" documents have conceptualized new roles and…

  8. Petroleum resources of the Middle East. Foreign Energy Supply Assessment Program Series

    SciTech Connect

    Not Available

    1983-05-01

    This report contains an analysis of known and ultimately recoverable crude oil and natural gas resources in the following Persian Gulf states: The Kingdom of Saudi Arabia, The State of Kuwait, The Islamic Republic of Iran, The Republic of Iraq, The United Arab Emirates: Sheidkom of Abu Dhabi, Sheikdom of Dubai, and Sheikdom of Sharjah, The Divided Neutral Zone (administered jointly by Saudi Arabia and Kuwait), The State of Qatar, The Sultanate of Oman, and the State of Bahrain. The rates that oil resources will likely be available to world markets are also covered in this report. A comprehensive analysis was made of the ultimately recoverable oil in 150 fields. This included all of the giant fields (63) and, with a few minor exceptions, all of the producing non-giant fields (46). It also included 41 non-producing fields. Analysis indicated that 547 billion barrels of ultimately recoverable oil was found in these fields. This would include 87 billion barrels of oil which will require advanced recovery techniques if the oil is to be extracted from the reservoirs. Excluding the 128 billion barrels of the known recoverable oil produced through 1981, the known recoverable oil remaining at year-end 1981 was about 419 billion barrels. If the average production during the 1990's remained the same as in the 1980's, the known resource base at the end of the 20th century would be reduced to 249 billion barrels or about a 29 year supply. Therefore, by the year 2000, over one-half of the total known oil resource base would be depleted, and production levels would of necessity decline as it would be difficult for the known fields to maintain an aggregate production level of 8.46 billion barrels per year. (DMC)

  9. Fine Mode Aerosol over the United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Ross, K. E.; Piketh, S. J.; Reid, J. S.; Reid, E. A.

    2005-12-01

    The aerosol loading of the atmosphere over the Arabian Gulf region is extremely diverse and is composed not only of dust, but also of pollution that is derived largely from oil-related activities. Fine mode pollution particles are most efficient at scattering incoming solar radiation and have the potential to act as cloud condensation nuclei (CCN), and may therefore have implications for climate change. The smaller aerosols may also pose a health hazard if present in high concentrations. The United Arab Emirates Unified Aerosol Experiment (UAE2) was designed to investigate aerosol and meteorological characteristics over the region using ground-based, aircraft and satellite measurements, and was conducted in August and September 2004. Aerosol chemical composition has been obtained from filters that were collected at the site of the Mobile Atmospheric Aerosol and Radiation Characterization Observatory (MAARCO) on the coast of the UAE between Abu Dhabi and Dubai. Filter samples were also collected on an airborne platform in order to assess how aerosol chemical composition varies across the region and throughout the depth of the boundary layer. Results of the analysis of the PM2.5 coastal samples show that ammonium sulphate is the most prevalent constituent of the fine mode aerosol in the region (>50% of the mass), followed by organic matter, alumino-silicates, calcium carbonate and black carbon. Source apportionment indicates that most of the fine aerosol mass is derived from fossil fuel combustion, while mineral dust and local vehicle emissions also contribute to the fine aerosol loading. The organic carbon-to-total carbon ratio of the aerosol is 0.65, which is typical of fossil fuel combustion. The dominance of sulphates means that the fine mode aerosol in the region is probably responsible for a negative radiative forcing, and that the polluting emissions significantly elevate the concentration of CCN.

  10. Assessing the attenuating effects of water vapor and airborne dust on solar energy resources in arid environments

    NASA Astrophysics Data System (ADS)

    Alsharif, I.; Ghedira, H.

    2012-12-01

    Solar power is one of the main forms of renewable energy on the planet, global interest in this form of energy is increasing with time and many projects around the world are ongoing to harvest solar energy, therefore an accurate assessment of solar potential is necessary. The accuracy of solar resource assessment reduces the risk associated with constructing large scale solar power plants in areas with poor solar irradiance. Interest in electricity from solar power plants is rapidly increasing in the Middle East. In the United Arab Emirates a target of 7% electricity production from renewable energy sources by the year 2020 has been set in Abu Dhabi. A 100MW CSP plant, Shams-1, will be operational by the end of 2012, which is to be followed by Shams-2 and Shams-3 plants. In Dubai a target of 5% electricity production from solar energy is set by 2030, work is undergoing in the Mohammed bin Rashid Al Maktoum Solar Park which should produce 10 MW by the end of 2013 and 1 GW by 2030. Thus location specific analysis of solar resources should be performed for candidate sites in the UAE. For a more accurate assessment, a special attention has to be given to the environmental and climatological conditions of the region. Water particles and other atmospheric aerosols can have a significant effect on the solar irradiance reaching the ground surface. Assessment of these effects over the UAE and their effect on solar resources has not been investigated thoroughly. Undertaking this assessment will help refine the exiting solar assessment models, and possible predictions of solar losses in dusty and humid conditions. Using the SEVIRI instrument on board the MSG satellite and NASA's AERONET to acquire the water vapor content in the atmosphere, and monitoring the time matched solar irradiance measurements will enable the analysis of the effects of water vapor in the atmosphere on the solar energy output.

  11. Prevalence and triggers of allergic rhinitis in the United Arab Emirates

    PubMed Central

    2014-01-01

    Background and objectives Allergic rhinitis is a morbid condition that is frequently overlooked by patients and physicians. This type of atopy has not been adequately investigated in the United Arab Emirates. Methods This cross-sectional, population-based observational study was conducted in the seven Emirates (Abu Dhabi, Dubai, Sharjah, Ajman, Umm Al-Quwain, Ras Al-Khaimah, and Fujairah). It used the European Community Respiratory Health Survey (ECRHS II) to screen for allergic rhinitis in people living in this region. Results Symptoms of allergic rhinitis were present in 85 (7%) of the 1,229 study population. Only 33 (39%) patients received treatment. Seventy-six (89%) patients had asthma. Thirty-seven (44%) patients were poly-sensitized. Symptoms were aggravated by dust (59%), grass/pollens (44%) and proximity to animals (21%). Winter was the peak season (37%), followed by spring (30%), autumn (18%) and summer (15%). Grass/pollen allergies were clustered in the winter, spring and summer (p ≤ 0.001). Dust was non-seasonal (p ≥ 0.121) and animal allergy was worse in the winter (p = 0.024) and spring (p = 0.044). Spring symptoms were less common in people living in the inner city (p = 0.003). Conclusions At least 7% of the studied population had allergic rhinitis. Most (71%) of these patients had environmental triggers and remained untreated. Allergic rhinitis awareness and measures to control allergens and dust are needed. The impact of preventing allergic rhinitis on other common atopies in the region deserves future studies. PMID:25097721

  12. Volcano-sedimentary characteristics in the Abu Treifiya Basin, Cairo-Suez District, Egypt: Example of dynamics and fluidization over sedimentary and volcaniclastic beds by emplacement of syn-volcanic basaltic rocks

    NASA Astrophysics Data System (ADS)

    Khalaf, E. A.; Abdel Motelib, A.; Hammed, M. S.; El Manawi, A. H.

    2015-12-01

    This paper describes the Neogene lava-sediment mingling from the Abu Treifiya Basin, Cairo-Suez district, Egypt. The lava-sediment interactions as peperites have been identified for the first time at the study area and can be used as paleoenvironmental indicators. The identification of peperite reflects contemporaneous time relationship between volcanism and sedimentation and this finding is of primary importance to address the evolutional reconstruction of the Abu Treifiya Basin. Characterization of the facies architecture and textural framework of peperites was carried out through detailed description and interpretation of their outcrops. The peperites and sedimentary rocks are up to 350 m thick and form a distinct stratigraphic framework of diverse lithology that is widespread over several kilometers at the study area. Lateral and vertical facies of the peperites vary from sediment intercalated with the extrusive/intrusive basaltic rocks forming peperitic breccias to lava-sediment contacts at a large to small scales, respectively. Peperites encompass five main facies types ascribed to: (i) carbonate sediments-hosted fluidal and blocky peperites, (ii) lava flow-hosted blocky peperites, (iii) volcaniclastics-hosted fluidal and blocky peperites, (iv) sandstone/siltstone rocks-hosted blocky peperites, and (iv) debris-flows-hosted blocky peperites. Soft sediment deformation structures, vesiculated sediments, sediments filled-vesicles, and fractures in lava flows indicate that lava flows mingled with unconsolidated wet sediments. All the peperites in this study could be described as blocky or fluidal, but mixtures of different clast shapes occur regardless of the host sediment. The presence of fluidal and blocky juvenile clasts elucidates different eruptive styles, reflecting a ductile and brittle fragmentation. The gradual variation from fluidal to blocky peperite texture, producing the vertical grading is affected by influencing factors, e.g., the viscosity, magma

  13. Atmospheric soundings from Mount Abu

    NASA Astrophysics Data System (ADS)

    Sharma, Som; Sinha, H. S. S.

    2005-06-01

    An atmospheric science laboratory was set up at Gurushikhar, in the campus of PRL's Infrared observatory, in 1994. A variety of scientific instruments were housed in the atmospheric science laboratory to explore the Earth's ionosphere and neutral atmosphere. A powerful Nd-YAG laser based Lidar, a multi-wavelength all sky imaging system, Day-night-airglow photometer/spectrometer and a proton precession magnetometer are in operation along with a surface ozone sampler, a carbon mono-oxide analyzer and a UV radiometer (measures solar ultraviolet irradiance between 280 and 320 nm). This article highlights the neutral density and temperature measurements by the lidar as well as Atmospheric/Ionospheric parameters derived by other instruments.

  14. Mineral chemistry and geochemistry of the Late Neoproterozoic Gabal Abu Diab granitoids, Central Eastern Dessert, Egypt: Implications for the origin of rare metal post-orogenic A-type granites

    NASA Astrophysics Data System (ADS)

    Sami, Mabrouk; Ntaflos, Theodoros; Farahat, Esam S.; Ahmed, Awaad F.; Mohamed, Haroun A.

    2015-04-01

    The Neoproterozoic Gabal Abu Diab pluton is a part of the Arabian Nubian shield (ANS) continental crust and located in the Central Eastern Desert (CED) of Egypt. It constitutes multiphase granitic pluton intruded into granodiorite and metagabbro-diorite rocks with sharp and nonreactive contacts. Based on field observations, colors, structural variations and petrographic investigations, this granitic outcrop consists of an inner core of two-mica granite (TMG) followed outward by garnet bearing muscovite granite (GBMG) and albite granite (AG). Petrographical study indicated that medium to coarse-grained TMG is dominated by K-feldspar (Or88-98), quartz, plagioclase (albite, An0-7), muscovite and biotite with hypidiomorphic texture. With exception the appearance of garnet and the disappearance of biotite the GBMG resembles the TGM, while AG is leucocratic without any mafic mineral. The main accessories are zircon, Nb and Ta-bearing rutile, columbite, ilmenorutile, ilmenite, magnetite and apatite. This mineralogical similarity and the existence of columbite group minerals (CGM) in all granitoids, indicates a cogenetic relationship. Microprobe analyses reveal that, besides the CGM, rutile and ilmenite are the main repository phases for Nb-Ta-Ti. Columbite-(Mn) exists as individual subhedral crystals (up to 100μm in size) or intimate intergrowth with Nb-bearing rutile and/or ilmenite. The CGM are represented mostly by columbite-(Mn) with Ta/(Ta+Nb) and Mn/(Mn+Fe) ratio ranging from 0.02-0.08 and 0.4-0.9, respectively suggesting extreme degree of magmatic fractionation. Rutile contains significant amounts of Ta (up to 4 wt.% Ta2O5) and Nb (up to 22 wt.% Nb2O5). Biotites are phlogopite-annite in composition (Ann47-60Phlog40-53,on average) and are enriched with AlIV that characterize peraluminous granites. Garnets contain 60-69 mol.% spessartine and 28-36 mol.% almandine where, the ratio of spessartine and almandine together exceeds 95 mole percent, similar to garnet occur

  15. Current status of coral reefs in the United Arab Emirates: Distribution, extent, and community structure with implications for management.

    PubMed

    Grizzle, Raymond E; Ward, Krystin M; AlShihi, Rashid M S; Burt, John A

    2016-04-30

    Coral reefs of the United Arab Emirates were once extensive, but have declined dramatically in recent decades. Marine management and policy have been hampered by outdated and inaccurate habitat maps and habitat quality information. We combined existing recent datasets with our newly mapped coral habitats to provide a current assessment of nation-wide extent, and performed quantitative surveys of communities at 23 sites to assess coral cover and composition. Over 132 km(2) of coral habitat was mapped, averaging 28.6 ± 3.8% live coral cover at surveyed sites. In the Arabian Gulf low cover, low richness Porites dominated communities characterized western Abu Dhabi, while reefs northeast of Abu Dhabi city generally contained higher richness and cover, and were dominated by merulinids (formerly faviids). Distinct communities occur in the Sea of Oman, where cover and richness were low. We provide management recommendations to enhance conservation of vulnerable coral reefs in the UAE. PMID:26476864

  16. An integrated water resources management strategy for Al-Ain City, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Mohamed, M. M.

    2014-09-01

    Al-Ain is the second largest city in the Emirate of Abu Dhabi and the third in the UAE. Currently, desalination plants are the only source of drinking water in the city with an average daily supply of 170 MIG. Recently, Abu Dhabi Urban Planning Council (UPC) released Al-Ain 2030 Plan. Projects suggested in this plan, over and above the expected natural population growth, will certainly put additional stress on the water resources in the city. Therefore, Al-Ain city seems to be in urgent need for an integrated water resources management strategy towards achieving sustainable development. This strategy will contain three main components; namely, a Water Demand Forecasting Model (WDFM), a Water Budget Model (WBM), and a Water Resources Optimization Model (WROM). The main aim of this paper is to present the WBM that estimates all inflows and outflows to assess water resources sustainability in the city.

  17. Middle East

    SciTech Connect

    Hemer, D.O.; Mason, J.F.; Hatch, G.C.

    1981-10-01

    Petroleum production in Middle East countries during 1980 totaled 6,747,719,000 bbl or an average rate of 18,436,390,000 bbl/d, down 13.9% from 1979. Increases were in Saudi Arabia and Syria. Significant decreases occurred in Iraq, Iran, Kuwait, and Turkey. New discoveries were made in Abu Dhabi, Iran, Saudi Arabia, Sharjah, and Oman. New areas were explored in Bahrain, Oman, Syria, and Yemen. 9 figures, 16 tables.

  18. Number Sense-Based Strategies Used by High-Achieving Sixth Grade Students Who Experienced Reform Textbooks

    ERIC Educational Resources Information Center

    Alsawaie, Othman N.

    2012-01-01

    The purpose of this study was to explore strategies used by high-achieving 6th grade students in the United Arab Emirates (UAE) to solve basic arithmetic problems involving number sense. The sample for the study consisted of 15 high-achieving boys and 15 high-achieving girls in grade 6 from 2 schools in the Emirate of Abu Dhabi, UAE. Data for the…

  19. One Corner at a Time: Collaborating for Educational Change in the UAE

    ERIC Educational Resources Information Center

    Sowa, Patience A.; De La Vega, Esperanza

    2008-01-01

    Education has been one of the highest priorities in the United Arab Emirates (UAE) since it became a country in 1971 under the leadership of the late Sheikh Zayed Bin Sultan Al Nahyan. In 1962, when oil production started in Abu Dhabi, the country had just 20 schools for less than 4,000 students, most of them boys. The discovery of oil became the…

  20. Crude Dubai oil toxicity on some fresh-water invertebrates

    SciTech Connect

    Ramusino, M.C.; Zanzottera, D.

    1986-01-01

    Six hundred and sixty-three tons of crude oil were accidentally spilled by a bursting pipeline into the Po River in April, 1980. Toxicity tests were carried out to determine if behavioral changes occurred in fish exposed to the oil. The purpose of the present study is to evaluate the effects of the oil on a common invertebrate species in the Po River, so as to obtain a more comprehensive picture of the possible damage caused to the river ecosystem.

  1. Graduate Education Is the Dubai of Higher Learning

    ERIC Educational Resources Information Center

    Adamson, Morgan

    2010-01-01

    Mark C. Taylor's op-ed in the "New York Times," "End the University as We Know It," struck a nerve among both faculty and graduate students, as shown by the numerous blog posts and letters to the editor it inspired. Taylor, chair of the religion department at Columbia University, spoke directly to their deepest insecurities by describing graduate…

  2. Oil and gas developments in Middle East in 1986

    SciTech Connect

    Hemer, D.O.; Gohrbandt, K.H.A.

    1987-10-01

    Petroleum production in Middle East countries during 1986 totaled 4,493,973,000 bbl (an average rate of 12,312,254 BOPD), up 22.3% from the revised 1985 total of 3,673,729,000 bbl. Iraq, Kuwait, Saudi Arabia, Abu Dhabi, and Oman had significant increased; Iran was the only Middle East country with a significant decrease. New fields went on production in Oman and Yemen Arab Republic, and significant discoveries were reported in Iraq, Yemen Arab Republic, Oman, and Syria. However, exploration was generally down in most countries. Exploration and production operations continued to be affected by war in Iraq and Iran. 8 figures, 7 tables.

  3. Human factors and risk assessment

    SciTech Connect

    Al-Minhali, A.

    1996-11-01

    A case study was presented in the 1994 Abu Dhabi International Exhibition and Conference (ADIPEC, 94) which discussed the importance of investigating human factors in the design of a high integrity protection system (HIPS) to be installed on an offshore high pressure gas platform, (SPE reference ADSPE 80). This paper will follow up on the design changes, installation and operation of the HIPS with emphasis on practical implications as a result of improper integration of human factors in the system reliability and risk assessment studies.

  4. Probabilistic Seismic Hazard assessment for Sultanate of Oman

    NASA Astrophysics Data System (ADS)

    El Hussain, I. W.; Deif, A.; El-Hady, S.; Toksoz, M. N.; Al-Jabri, K.; Al-Hashmi, S.; Al-Toubi, K. I.; Al-Shijbi, Y.; Al-Saifi, M.

    2010-12-01

    Seismic hazard assessment for Oman is conducted utilizing probabilistic approach. Probabilistic Seismic Hazard Assessment (PSHA) has been performed within a logic tree framework. An earthquake catalogue for Oman was compiled and declustered to include only independent earthquakes. The declustered catalogue was used to define seismotectonic source model with 26 source zones that characterize earthquakes in the tectonic environments in and around Oman. The recurrence parameters for all the seismogenic zones are determined using the doubly bounded exponential distribution except the seismogenic zones of Makran subduction zone which were modeled using the characteristic distribution. The maximum earthquakes on known faults were determined geologically and the remaining zones were determined statistically from the compiled catalogue. Horizontal ground accelerations in terms of geometric mean were calculated using ground-motion prediction relationships that were developed from seismic data obtained from the shallow active environment, stable craton environment, and from subduction earthquakes. In this analysis, we have used alternative seismotectonic source models, maximum magnitude, and attenuation models and weighted them to account for the epistemic uncertainty. The application of this methodology leads to the definition of 5% damped seismic hazard maps at rock sites for 72, 475, and 2475 year return periods for spectral accelerations at periods of 0.0 (corresponding to peak ground acceleration), 0.1, 0.2, 0.3, 1.0 and 2.0 sec. Mean and 84th percentile acceleration contour maps were represented. The results also were displayed as uniform hazard spectra for rock sites in the cities of Khasab, Diba, Sohar, Muscat, Nizwa, Sur, and Salalah in Oman and the cities of Abu Dhabi and Dubai in UAE. The PGA across Oman ranges from 20 cm/sec2 in the Mid-West and 115 cm/sec2 at the northern part for 475 years return period and between 40 cm/sec2 and 180 cm/sec2 for 2475 years

  5. Prevalence of High Blood Pressure, Heart Disease, Thalassemia, Sickle-Cell Anemia, and Iron-Deficiency Anemia among the UAE Adolescent Population

    PubMed Central

    Barakat-Haddad, Caroline

    2013-01-01

    This study examined the prevalence of high blood pressure, heart disease, and medical diagnoses in relation to blood disorders, among 6,329 adolescent students (age 15 to 18 years) who reside in the United Arab Emirates (UAE). Findings indicated that the overall prevalence of high blood pressure and heart disease was 1.8% and 1.3%, respectively. Overall, the prevalence for thalassemia, sickle-cell anemia, and iron-deficiency anemia was 0.9%, 1.6%, and 5%, respectively. Bivariate analysis revealed statistically significant differences in the prevalence of high blood pressure among the local and expatriate adolescent population in the Emirate of Sharjah. Similarly, statistically significant differences in the prevalence of iron-deficiency anemia were observed among the local and expatriate population in Abu Dhabi city, the western region of Abu Dhabi, and Al-Ain. Multivariate analysis revealed the following significant predictors of high blood pressure: residing in proximity to industry, nonconventional substance abuse, and age when smoking or exposure to smoking began. Ethnicity was a significant predictor of heart disease, thalassemia, sickle-cell anemia, and iron-deficiency anemia. In addition, predictors of thalassemia included gender (female) and participating in physical activity. Participants diagnosed with sickle-cell anemia and iron-deficiency anemia were more likely to experience different physical activities. PMID:23606864

  6. Yunus, Abu'l-Hasan ibn (950-1009)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomer, born in Egypt, calculated trigonometric functions for use in astronomy and wrote an astronomical handbook, al-Zij al-Hakimi al-kabir, the Great Tables of Caliph al-Hakim, which contained observations made by Yunus, including 30 lunar eclipses used by SIMON NEWCOMB in his lunar theory. Yunus was also an astrologer, predicting the date of his own death in seven days' time. He made prepa...

  7. al-Sufi, Abu al-Rahman (903-86)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Persian astronomer, published works on astronomical instruments. Revised PTOLEMY's star catalog as the Book of the Constellations of the Fixed Stars, with improved magnitudes, stars named by reference to constellation figures (much copied, for example by ALFONSO X as Libros del Saber de Astronomìa), and nebulae, including the Andromeda Galaxy (M31). However, the work was not entirely original sin...

  8. Thabit Ibn Qurra, Abu'l-Hasan (836-901)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomer, born in Harran, Mesopotamia (now Turkey), became court astronomer in Baghdad, translated Greek works on mathematics and wrote on astronomy, including Concerning the Motion of the Eighth Sphere, on the apparent motions of the stars, analysed the movements of Sun and Moon and wrote treatises on sun-dials. Some of his books were translated into Latin by Gherard of Cremona and distributed...

  9. Potassium/lime muds reduce drilling costs through troublesome Dubai shales

    SciTech Connect

    Tipton, J.; Gaudin, D.

    1986-06-16

    Shale problems in the Arabian Gulf, offshore U.A.E., occur in two troublesome formations. The main problems occur in the 9 7/8-in. interval through the Aruma shales. Significant reductions in cost have been achieved by substituting water-based, potassium, lime, modified-deflocculant-polymer systems (called KLM muds) for oil-based systems in directional wells of less than 45/sup 0/. Additionally, laboratory tests have shown KLM muds to be equally inhibitive in comparison to KCI systems at significantly lower potassium concentrations. Excellent well stabilization has been maintained with the KLM systems, drilling near-gauge holes at improved penetration rates. This article presents a chronological development of inhibitive systems, clay chemistry, and laboratory research. It then gives field performance data from the five wells. The key technical points are that calcium and potassium work together synergistically, and that cheaper calcium can do much of the inhibition.

  10. Development of the ICT Sector and Urban Competitiveness: The Case of Dubai

    ERIC Educational Resources Information Center

    Keivani, Ramin; Parsa, Ali; Younis, Bassem

    2003-01-01

    The one common thread in all studies of globalization is the role of information and communications technologies (ICTs) in facilitating the advanced producer service, production, innovation, and knowledge function that have come to characterize the urban condition at the heart of this process. ICTs provide the instantaneous and real-time…

  11. From Teacher Dependence to Learner Independence: Case Study from the Dubai Women's College.

    ERIC Educational Resources Information Center

    Hawker, Laila

    The process of shifting from the educational practice paradigm of the traditional teacher-dependent classroom to an independent learning environment requires transformation of attitudes, beliefs, and actions of students and teachers alike through understanding and acquisition and application of fundamental learning principles, skills, and…

  12. Are artificial reefs surrogates of natural habitats for corals and fish in Dubai, United Arab Emirates?

    NASA Astrophysics Data System (ADS)

    Burt, J.; Bartholomew, A.; Usseglio, P.; Bauman, A.; Sale, P. F.

    2009-09-01

    Artificial reefs are often promoted as mitigating human impacts in coastal ecosystems and enhancing fisheries; however, evidence supporting their benefits is equivocal. Such structures must be compared with natural reefs in order to assess their performance, but past comparisons typically examined artificial structures that were too small, or were immature, relative to the natural reefs. We compared coral and fish communities on two large (>400,000 m3) and mature (>25 year) artificial reefs with six natural coral patches. Coral cover was higher on artificial reefs (50%) than in natural habitats (31%), but natural coral patches contained higher species richness (29 vs. 20) and coral diversity ( H' = 2.3 vs. 1.8). Multivariate analyses indicated strong differences between coral communities in natural and artificial habitats. Fish communities were sampled seasonally for 1 year. Multivariate fish communities differed significantly among habitat types in the summer and fall, but converged in the winter and spring. Univariate analysis indicated that species richness and abundance were stable throughout the year on natural coral patches but increased significantly in the summer on artificial reefs compared with the winter and spring, explaining the multivariate changes in community structure. The increased summer abundance on artificial reefs was mainly due to adult immigration. Piscivores were much more abundant in the fall than in the winter or spring on artificial reefs, but had low and stable abundance throughout the year in natural habitats. It is likely that the decreased winter and spring abundance of fish on the artificial reefs resulted from both predation and emigration. These results indicate that large artificial reefs can support diverse and abundant coral and fish communities. However, these communities differ structurally and functionally from those in natural habitats, and they should not be considered as replacements for natural coral and fish communities.

  13. Acute Middle East Respiratory Syndrome Coronavirus Infection in Livestock Dromedaries, Dubai, 2014

    PubMed Central

    Corman, Victor M.; Wong, Emily Y.M.; Tsang, Alan K.L.; Muth, Doreen; Lau, Susanna K. P.; Khazanehdari, Kamal; Zirkel, Florian; Ali, Mansoor; Nagy, Peter; Juhasz, Jutka; Wernery, Renate; Joseph, Sunitha; Syriac, Ginu; Elizabeth, Shyna K.; Patteril, Nissy Annie Georgy; Woo, Patrick C. Y.; Drosten, Christian

    2015-01-01

    Camels carry Middle East respiratory syndrome coronavirus, but little is known about infection age or prevalence. We studied >800 dromedaries of all ages and 15 mother–calf pairs. This syndrome constitutes an acute, epidemic, and time-limited infection in camels <4 years of age, particularly calves. Delayed social separation of calves might reduce human infection risk. PMID:25989145

  14. Dubai 3d Textuerd Mesh Using High Quality Resolution Vertical/oblique Aerial Imagery

    NASA Astrophysics Data System (ADS)

    Tayeb Madani, Adib; Ziad Ahmad, Abdullateef; Christoph, Lueken; Hammadi, Zamzam; Manal Abdullah Sabeal, Manal Abdullah x.

    2016-06-01

    Providing high quality 3D data with reasonable quality and cost were always essential, affording the core data and foundation for developing an information-based decision-making tool of urban environments with the capability of providing decision makers, stakeholders, professionals, and public users with 3D views and 3D analysis tools of spatial information that enables real-world views. Helps and assist in improving users' orientation and also increase their efficiency in performing their tasks related to city planning, Inspection, infrastructures, roads, and cadastre management. In this paper, the capability of multi-view Vexcel UltraCam Osprey camera images is examined to provide a 3D model of building façades using an efficient image-based modeling workflow adopted by commercial software's. The main steps of this work include: Specification, point cloud generation, and 3D modeling. After improving the initial values of interior and exterior parameters at first step, an efficient image matching technique such as Semi Global Matching (SGM) is applied on the images to generate point cloud. Then, a mesh model of points is calculated using and refined to obtain an accurate model of buildings. Finally, a texture is assigned to mesh in order to create a realistic 3D model. The resulting model has provided enough LoD2 details of the building based on visual assessment. The objective of this paper is neither comparing nor promoting a specific technique over the other and does not mean to promote a sensor-based system over another systems or mechanism presented in existing or previous paper. The idea is to share experience.

  15. Integrated Use Of MERIS And Other EO Data For Water Quality And Red Tide Monitoring Along United Arab Emirates Coasts

    NASA Astrophysics Data System (ADS)

    Ceriola, G.; Avgikou, V.; Manunta, P.

    2013-12-01

    Coastal zones host a large percentage of global population and economical and productive activities and are in need of a constant monitoring. The C-wams project is focused at implementing a suite EO services targeting two growing sectors: Waste Water Treatment and Desalination plants. The coast of the United Arab Emirates (UAE) hosts some of the largest desalination plants in the world and their operation can affect and be affected by the status of the WQ near the coast: the local phenomenon known as Red Tide caused increasing damages in the last 4 years. Some actors are involved in this respect in the Persian gulf, among them the Environment Agency of Abu Dhabi (EAD). In UAE an historical study-case is being performed aimed at identifying Red Tide events using MERIS images, integrating them with other medium and higher resolution data. The present work describes its scenario and the preliminary results obtained.

  16. Phonon Quasi-Particles and Anharmonic Free Energy in Complex Systems

    NASA Astrophysics Data System (ADS)

    Zhang, Dong-Bo; Sun, Tao; Wentzcovitch, Renata

    2014-03-01

    We use a hybrid strategy to obtain anharmonic frequency shifts and lifetimes of phonon quasi-particles from first principles molecular dynamics simulations in modest size supercells. This approach is effective irrespective of crystal structure complexity and facilitates calculation of full anharmonic phonon dispersions, as long as phonon quasi-particles are well defined. We validate this approach to obtaining anharmonic effects with calculations in MgSiO3-perovskite, the major Earth forming mineral phase. First, we reproduce irregular temperature induced frequency shifts of well characterized Raman modes. Second, we combine the phonon gas model (PGM) with quasi-particle frequencies and reproduce free energies obtained using a direct approach such as thermodynamic integration. Using thoroughly sampled quasi-particle dispersions with the PGM we then obtain first-principles anharmonic free energy in the thermodynamic limit (N --> ∞) . Research supported by Abu Dhabi-Minnesota Institute for Research Excellence (ADMIRE) and NSF grant EAR-1047629.

  17. Worldwide offshore effort at record level--will it continue

    SciTech Connect

    King, R.E.

    1982-07-01

    Worldwide offshore exxloration levels reached new highs during the past year. A large gas find was made off northern Norway at 72/sup 0/N lat. Oil was discovered off Abu Dhabi in the Persian Gulf, and off South Yemen and southeastern India. North Sea activity slowed because of increased taxes. Off the U.S., new frontier zones were leased, at water depths up to 7,000 feet. A large oil discovery was made off southern California. The Chinese continental shelf was opened for bidding. The world oil surplus and lower crude prices have resulted in budget trimming for offshore development and there will probably be a decline in overall exploration expenditures in 1982-1983.

  18. 75 FR 2920 - In the Matter of the Designation of Nasir al-Wahishi, Also Known as Abu Basir, Also Known as Abu...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-19

    ... might have a constitutional presence in the United States would render ineffectual the blocking and... have a constitutional presence in the United States, because to do so would render ineffectual...

  19. Abu Zenima synthetic zeolite for removing iron and manganese from Assiut governorate groundwater, Egypt

    NASA Astrophysics Data System (ADS)

    Farrag, Abd El Hay Ali; Abdel Moghny, Th.; Mohamed, Atef Mohamed Gad; Saleem, Saleem Sayed; Fathy, Mahmoud

    2016-06-01

    Groundwater in Upper Egypt especially in Assiut Governorate is considered the second source of fresh water and used for drinking, agriculture, domestic and industrial purposes. Unfortunately, it is characterized by high concentrations of iron and manganese ions. The study aimed at synthesizing zeolite-4A from kaolinite for removing the excess iron and manganese ions from Assiut Governorate groundwater wells. Therefor, the kaolinite was hydrothermally treated through the metakaolinization and zeolitization processes to produce crystalline zeolite-4A. The chemical composition of crystalline zeolite-4A and its morphology were then characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Then the column experiments were conducted to study the performance of crystalline salt-4A as ion exchange and investigate their operating parameters and regeneration conditions. Thomas and Yoon-Nelson models were applied to predict adsorption capacity and the time required for 50 % breakthrough curves. The effects of initial concentrations of 600 and 1000 mg L-1 for Fe2+ and Mn2+, feed flow rate of 10-30 ml/min, and height range of 0.4-1.5 cm on the breakthrough behavior of the adsorption system were determined. The obtained results indicated that the synthesized zeolite-A4 can remove iron and manganese ions from groundwater to the permissible limit according to the standards drinking water law.

  20. 75 FR 26316 - In the Matter of the Designation of Qasim al-Rimi, Also Known as Qasim Yahya Mahda `abd al-Rimi...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-11

    ...-Remi, Also Known as Qasim al-Rami, Also Known as Abu Harayrah, Also Known as Abu Hurayrah al-San'ai...-Raymi, also known as Qasim al-Rami, also known as Abu Harayrah, also known as Abu Hurayrah...

  1. Role of EPS in dolomite biomineralization by coastal sabkha microbial isolates

    NASA Astrophysics Data System (ADS)

    Ahmad, F.; Matiin, W. A.; Mansoor, B.; Yousef, L. F.

    2012-12-01

    Dolomite, CaMg(CO3)2, is an ancient form of carbonate constituting a wide variety of geologic formations. Despite its abundant deposits in geologic record, a longstanding mystery termed 'the Dolomite Problem' surrounds the formation of this mineral under present-day Earth conditions. Attempts to precipitate dolomite abiotically out of supersaturated solutions, and at ambient temperatures were not successful, particularly due to the kinetic barrier of strong ion pairs formed by calcium and magnesium with sulfate. The coastal sabkhas of western Abu Dhabi, alongside locations like Lagoa Vermelha, Brejo de Espinho, the Coorong, and Qinghai Lake were reported to exhibit modern dolomite formation, driven by the activity of sedimentary microbes well-adapted to these highly evaporative, hypersaline and sulfur-rich environments. Our study investigated one group of microbes, the sulfate-reducing bacteria (SRB) hypothesized to overcome the kinetic barrier through cation-sulfate pair dissociation and subsequent sulfate reduction into sulfide. While previous studies have successfully precipitated dolomite at ambient temperatures when incubated with SRB, the exact mechanism remains unclear. To address this, the biofilm aspect of natural SRB growth was explored within the setting of a dolomitizing culture. The study sought to investigate the potential role of exopolymeric substances (EPS) in promoting favorable conditions for dolomite biomineralization. SRB isolated from a coastal sabkha (western Abu Dhabi) were cultured and their EPS was extracted for characterization studies. To investigate the influence of EPS on dolomite biomineralization, sabkha SRB were cultured on dynamic hypersaline medium in the presence of varying EPS concentrations. Periodic chemical analysis of the growth medium, and HVSEM-EDS studies of the generated biofilm and biominerals suggest possible EPS influence on the microbial cultures and biomineralization process. Direct imaging of emerging Ca

  2. Two-way multi-band optical/IR transmission measurements in the Persian Gulf coastal region

    NASA Astrophysics Data System (ADS)

    de Jong, Arie N.; Fritz, Peter J.

    2005-10-01

    The atmospheric conditions in the Persian Gulf region are significantly different from other places in the world. The particle size distribution may vary daily and during the day. The aerosols can contribute to the amount of rainfall over land, important for the nations around the Gulf. In 2004 NASNGSFC and NRL (Naval Research Laboratory) introduced a proposal to improve the modelling of aerosol transport for the Persian Gulf area. The proposal included a measurement campaign in the UAE (United Arabian Emirates), held in the summer/fall of 2004, sponsored by the DWRS (Department of Water Resources Studies) in Abu Dhabi: UAEz (Unified Aerosol Experiment in the UAE). In this campaign NASA installed a number of multi-spectral sun-photometers at various locations in the UAE (http://aeronet.gsfc.nasa.gov). NRL installed ground based and airborne particle samplers. In addition, TNO (the Netherlands) installed its multi-band opticaUIR transmissometer, in order to collect horizontal, path-integrated transmission data. This device provides additional information on the scattering behaviour of the aerosols compared to the other instruments, which either integrate scattering over the full vertical path (the NASA sun-photometers, providing the Aerosol Optical Depth (AOD)) or sample the particles in-situ (the NRL particle samplers, providing size distribution and composition). This paper deals with our transmission measurement set-up, which was located in a coastal area near Abu Dhabi. This location allowed the investigation of the local variability of the atmospheric conditions: from desert dust to pollution, such as fossil fuel and biomass burning, depending on the wind direction. For logistic reasons a set-up was chosen with a retro-reflector. This choice implies consequences for the calibration procedure and measurement accuracy, which are discussed in detail. Also the effects of path-inhomogeneity and scintillation for such a two-way set-up are considered. Results are

  3. 76 FR 12318 - Action Affecting Export Privileges; Mahan Airways, Gatewick LLC; Pejman Mahmood Kosarayanifard...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-07

    ... Mahmood Kosarayanifard and Mahmoud Amini; Order Renewing Order Temporarily Denying Export Privileges and... Kosarian Fard, P.O. Box 52404, Dubai, United Arab Emirates; Mahmoud Amini G 22 Dubai Airport Free Zone, P.O..., P.O. Box 52404, Dubai, United Arab Emirates; and Mahmoud Amini, G 22 Dubai Airport Free Zone,...

  4. International Commission on Radiological Protection Committee 1: Current Status and Future Directions

    SciTech Connect

    Morgan, William F.

    2015-05-19

    The International Commission on Radiological Protection (ICRP), Committee 1 (C1) considers the risk of induction of cancer and heritable disease (stochastic effects) together with the underlying mechanisms of radiation action. C1 also considers the risks, severity, and mechanisms of induction of tissue/organ damage and developmental defects (deterministic effects). The committee was significantly revamped in 2013 and last met in Abu Dhabi in October of 2013. C1 evaluated progress on two ongoing Task Groups (TG’s); TG 64 “Cancer Risk from Alpha Emitters” and TG 75 “Stem Cell Radiobiology”. Following approval from the Main Commission (MC), C1 established two new TG’s; TG 91 “Radiation Risk Inference at Low Dose and Low Dose Rate Exposure for Radiological Protection Purposes”, and TG 92 “Terminology and Definitions”. Here I will present a synopsis of the current status of C1 and outline the tasks C1 may undertake in the future.

  5. Eolian transport of geogenic hexavalent chromium to ground water

    USGS Publications Warehouse

    Wood, W.W.; Clark, D.; Imes, J.L.; Councell, T.B.

    2010-01-01

    A conceptual model of eolian transport is proposed to address the widely distributed, high concentrations of hexavalent chromium (Cr+6) observed in ground water in the Emirate of Abu Dhabi, United Arab Emirates. Concentrations (30 to more than 1000 μg/L Cr+6) extend over thousands of square kilometers of ground water systems. It is hypothesized that the Cr is derived from weathering of chromium-rich pyroxenes and olivines present in ophiolite sequence of the adjacent Oman (Hajar) Mountains. Cr+3 in the minerals is oxidized to Cr+6 by reduction of manganese and is subsequently sorbed on iron and manganese oxide coatings of particles. When the surfaces of these particles are abraded in this arid environment, they release fine, micrometer-sized, coated particles that are easily transported over large distances by wind and subsequently deposited on the surface. During ground water recharge events, the readily soluble Cr+6 is mobilized by rain water and transported by advective flow into the underlying aquifer. Chromium analyses of ground water, rain, dust, and surface (soil) deposits are consistent with this model, as are electron probe analyses of clasts derived from the eroding Oman ophiolite sequence. Ground water recharge flux is proposed to exercise some control over Cr+6 concentration in the aquifer.

  6. Successful field evaluation of the efficiency of a gas gravity drainage process by applying recent developments in Sponge coring technique in a major oil field

    SciTech Connect

    Durandeau, M.; El-Emam, M.; Anis, A.H.; Fanti, G.

    1995-11-01

    This paper describes the application and integration of new technologies and recent developments in Sponge coring and presents the methodology used to carry out successfully the various phases of well designed Sponge coring project, including the coring phase, the on-site measurements and the full evaluation of the Sponge core samples. A field case is presented where a Sponge coring project was accomplished to obtain accurate fluids distribution and evaluate the gas gravity drainage efficiency in one of the Arab D sub-reservoirs of a major oil field offshore Abu Dhabi. A Sponge coring technology team was created to optimize the methodology used during Sponge coring an minimize the uncertainties which persisted on some of the previous operations. The effectiveness of the technique is discussed, with comparison to open hole logs and SCAL data. Realistic petrophysical parameters were obtained from non-invaded, native-state core samples. The effective oil saturation obtained from the Sponge core analysis results showed that the gravity segregation mechanism has been very active and efficient to recover the oil in the reservoir.

  7. Prioritizing environmental health risks in the UAE.

    PubMed

    Willis, Henry H; Gibson, Jacqueline MacDonald; Shih, Regina A; Geschwind, Sandra; Olmstead, Sarah; Hu, Jianhui; Curtright, Aimee E; Cecchine, Gary; Moore, Melinda

    2010-12-01

    This article presents the results of a comparative environmental risk-ranking exercise that was conducted in the United Arab Emirates (UAE) to inform a strategic planning process led by the Environment Agency-Abu Dhabi (EAD). It represents the first national-level application of a deliberative method for comparative risk ranking first published in this journal. The deliberative method involves a five-stage process that includes quantitative risk assessment by experts and deliberations by groups of stakeholders. The project reported in this article considered 14 categories of environmental risks to health identified through discussions with EAD staff: ambient and indoor air pollution; drinking water contamination; coastal water pollution; soil and groundwater contamination; contamination of fruits, vegetables, and seafood; ambient noise; stratospheric ozone depletion; electromagnetic fields from power lines; health impacts from climate change; and exposure to hazardous substances in industrial, construction, and agricultural work environments. Results from workshops involving 73 stakeholders who met in five separate groups to rank these risks individually and collaboratively indicated strong consensus that outdoor and indoor air pollution are the highest priorities in the UAE. Each of the five groups rated these as being among the highest risks. All groups rated soil and groundwater contamination as being among the lowest risks. In surveys administered after the ranking exercises, participants indicated that the results of the process represented their concerns and approved of using the ranking results to inform policy decisions. The results ultimately shaped a strategic plan that is now being implemented. PMID:20723144

  8. Dealing with the Problem of Cybercrime

    NASA Astrophysics Data System (ADS)

    Alkaabi, Ali; Mohay, George; McCullagh, Adrian; Chantler, Nicholas

    Lack of a universally accepted and comprehensive taxonomy of cybercrime seriously impedes international efforts to accurately identify, report and monitor cybercrime trends. There is, not surprisingly, a corresponding disconnect internationally on the cybercrime legislation front, a much more serious problem and one which the International Telecommunication Union (ITU) says requires 'the urgent attention of all nations'. Yet, and despite the existence of the Council of Europe Convention on Cybercrime, a proposal for a global cybercrime treaty was rejected by the United Nations (UN) as recently as April 2010. This paper presents a refined and comprehensive taxonomy of cybercrime and demonstrates its utility for widespread use. It analyses how the USA, the UK, Australia and the UAE align with the CoE Convention and finds that more needs to be done to achieve conformance. We conclude with an analysis of the approaches used in Australia, in Queensland, and in the UAE, in Abu Dhabi, to fight cybercrime and identify a number of shared problems.

  9. Digital Rock Physics: Mechanical Properties of Carbonate Core Plug at Different Resolutions

    NASA Astrophysics Data System (ADS)

    Jouini, M. S.; Faisal, T. F.; Islam, A.; Chevalier, S.; Jouiad, M.; Sassi, M.

    2014-12-01

    Digital Rock Physics (DRP) is a novel technology that could be used to generate accurate, fast and cost effective special core analysis (SCAL) properties to support reservoir characterization and simulation tools. For this work, Micro-CT images at different resolutions have been used to run simulations to determine elastic properties like bulk, shear, Young's Modulus and Poisson's ratio of a dry carbonate core plug from Abu Dhabi reservoirs. Pre processing and segmentation of raw images is performed in FEI 3D visualization and analysis tool Avizo. Carbonates are characterized by a very complex pore-space structure and so a high degree of heterogeneity. Abaqus that is based on Finite Element Method is used to run 2D and 3D elastic simulations. Results will be compared by simulating the same core-plug in an alternative segmentation and FEM modeling environment used previously by Jouini & Vega et al. 2012 [1]. Acoustic wave propagation experiments at different confining pressures are performed in the laboratory Triaxial machine to determine the dynamic Young's modulus and Poisson's ratio for the same core plug. Expeirmental results are compared with numerical results. [1] Jouini, M.S. and Vega, S. 2012. Simulation of carbonate rocks elastic properties using 3D X-Ray computed tomography images based on Discrete Element Method and Finite Element Method. 46th US Rock Mechanics / Geomechanics Symposium, Chicago, Il, USA, 24-27 June 2012.

  10. Improving venous thromboembolism risk assessment compliance using the electronic tool in admitted medical patients

    PubMed Central

    Taha, Haytham; Raji, Salama J.; Ellahham, Samer; Bashir, Nihal; Al hanaee, Manar; Boharoon, Hessa; AlFalahi, May

    2015-01-01

    Sheikh Khalifa Medical City (SKMC) in Abu Dhabi is the main tertiary care referral hospital in the United Arab Emirates (UAE) with 560 bed capacity that is fully occupied most of the time. SKMC senior management has made a commitment to make quality and patient safety a top priority. Venous thromboembolism (VTE) risk assessment has been identified as a critical patient safety measure and key performance indicator. The electronic VTE risk assessment form a computerized decision support tool was introduced to improve adherence with deep venous thrombosis (DVT) prophylaxis recommendations. A multidisciplinary task force team was formed and led this quality improvement project. The purpose of this publication is to indicate the quality improvement interventions implemented to enhance compliance with VTE risk assessment and the outcomes of those interventions. We chose to conduct the pilot study in General Medicine as it is the busiest department in the hospital. The study period was from April 2014 till August 2015.The lessons learned were disseminated throughout the hospital. Our aim was to improve VTE risk assessment compliance by using the electronic form in order to ensure patient safety and reduce preventable harm. VTE risk assessment compliance improved in general medicine from 4% to 98%, and overall SKMC compliance from 21% to above 90%. PMID:26734399

  11. Aliphatic and aromatic hydrocarbons in marine biota and coastal sediments from the Gulf and the Gulf of Oman.

    PubMed

    Tolosa, Imma; de Mora, Stephen J; Fowler, Scott W; Villeneuve, Jean-Pierre; Bartocci, Jean; Cattini, Chantal

    2005-12-01

    The composition and spatial distribution of aliphatic and polycyclic aromatic hydrocarbons (PAHs) were investigated in biota and coastal sediments from four countries surrounding the Gulf (Bahrain, Qatar, United Arab Emirates and Oman). The levels of total petroleum hydrocarbons (TPH), aliphatic unresolved mixture and PAHs in sediments and biota were relatively low compared to world-wide locations reported to be chronically contaminated by oil. Only in the case of the sediments collected near the BAPCO oil refinery in Bahrain, having concentrations of 779 microg g(-1) total petroleum hydrocarbon equivalents and 6.6 microg g(-1) Sigma PAHs, can they be categorized as chronically contaminated. Some evidence of oil contamination was also apparent in sediments and bivalves around Akkah Head and Abu Dhabi in the UAE, and near Mirbat in Oman. Contaminant patterns in sediments and biota indicated that the PAHs were mainly from fossil sources, with the exception of the high PAH concentrations in sediments near the BAPCO refinery that contained substantial concentrations of carcinogenic PAH combustion products. PMID:16038948

  12. A compact muon tracking system for didactic and outreach activities

    NASA Astrophysics Data System (ADS)

    Antolini, R.; Candela, A.; Conicella, V.; De Deo, M.; D` Incecco, M.; Sablone, D.; Arneodo, F.; Benabderrahmane, M. L.; Di Giovanni, A.; Pazos Clemens, L.; Franchi, G.; d`Inzeo, M.

    2016-07-01

    We present a cosmic ray telescope based on the use of plastic scintillator bars coupled to ASD-RGB1S-M Advansid Silicon Photomultipliers (SiPM) through wavelength shifter fibers. The system is comprised of 200 electronic channels organized into 10 couples of orthogonal planes allowing the 3D reconstruction of crossing muons. Two monolithic PCB boards have been designed to bias, readout all the SiPMs enclosed in the system, to monitor the working parameters and to remotely connect the detector. To make easier the display of muon tracks to non-expert users, two LED matrices, triggered by particle interactions, have been implemented. To improve the usability of the muon telescope, a controller board unit permits to select different levels of trigger and allows data acquisition for refined analyses for the more proficient user. A first prototype, funded by INFN and deployed in collaboration with NYUAD, is operating at the Toledo Metro station of Naples, while two further detectors will be developed and installed in Abu Dhabi in the next few months.

  13. Tropospheric Enhancement of Ozone over the UAE

    NASA Astrophysics Data System (ADS)

    Abbasi, Naveed Ali; Majeed, Tariq; Iqbal, Mazhar; Kaminski, Jacek; Struzewska, Joanna; Durka, Pawel; Tarasick, David; Davies, Jonathan

    2015-04-01

    We use the Global Environmental Multiscale - Air Quality (GEM-AQ) model to interpret the vertical profiles of ozone acquired with ozone sounding experiments at the meteorological site located at the Abu Dhabi airport. The purpose of this study is to gain insight into the chemical and dynamical structures in the atmosphere of this unique subtropical location (latitude 24.45N; longitude 54.22E). Ozone observations for years 2012 - 2013 reveal elevated ozone abundances in the range from 70 ppbv to 120 ppbv near 500-400 hPa during summer. The ozone abundances in other seasons are much lower than these values. The preliminary results indicate that summertime enhancement in ozone is associated with the Arabian anticyclones centered over the Zagros Mountains in Iran and the Asir and Hijaz Mountain ranges in Saudi Arabia, and is consistent with TES observations of deuterated water. The model also shows considerable seasonal variation in the tropospheric ozone which is transported from the stratosphere by dynamical processes. The domestic production of ozone in the middle troposphere is estimated and compared GEM-AQ model. It is estimated that about 40-50% of ozone in the UAE is transported from the neighbouring petrochemical industries in the Gulf region. We will present ozone sounding data and GEM-AQ results including a discussion on the high levels of the tropospheric ozone responsible for contaminating the air quality in the UAE. This work is supported by National Research Foundation, UAE.

  14. Construction of a naturally occurring radioactive material project in the BeAAT hazardous waste facilities.

    PubMed

    Abuahmad, H

    2015-06-01

    This paper does not necessarily reflect the views of the International Commission on Radiological Protection. Naturally occurring radioactive material (NORM) is produced during exploration and production operations of subsidiaries of the Abu Dhabi National Oil Company (ADNOC) in the United Arab Emirates, and accumulates in drilling tubulars, plant equipment, and components. These NORM hazardous wastes need to be managed in such a way that they do not damage human health and the environment. The primary radionuclides of concern in the oil and gas industries are radium-226 and radium-228. These radioisotopes are the decay products of uranium and thorium isotopes that are present in subsurface formations from which hydrocarbons are produced. While uranium and thorium are largely immobile, radium is slightly more soluble and may become mobilised in the fluid phases of the formation (International Association of Oil & Gas Producers, 2008). In order to treat and dispose of NORM waste products safely, ADNOC's subsidiary 'TAKREER' is developing a new facility, on behalf of all ADNOC subsidiaries, within the existing Central Environmental Protection Facilities (BeAAT) in Ruwais city. The NORM plant is envisaged to treat, handle, and dispose of NORM waste in the forms of scale, sludge, and contaminated equipment. The NORM treatment facility will cover activities such as decontamination, volume reduction, NORM handling, and concrete immobilisation of NORM waste into packages for designated landfilling. PMID:25816275

  15. Can AERONET data be used to accurately model the monochromatic beam and circumsolar irradiances under cloud-free conditions in desert environment?

    NASA Astrophysics Data System (ADS)

    Eissa, Y.; Blanc, P.; Wald, L.; Ghedira, H.

    2015-07-01

    Routine measurements of the beam irradiance at normal incidence (DNI) include the irradiance originating from within the extent of the solar disc only (DNIS) whose angular extent is 0.266° ± 1.7 %, and that from a larger circumsolar region, called the circumsolar normal irradiance (CSNI). This study investigates if the spectral aerosol optical properties of the AERONET stations are sufficient for an accurate modelling of the monochromatic DNIS and CSNI under cloud-free conditions in a desert environment. The data from an AERONET station in Abu Dhabi, United Arab Emirates, and a collocated Sun and Aureole Measurement (SAM) instrument which offers reference measurements of the monochromatic profile of solar radiance, were exploited. Using the AERONET data both the radiative transfer models libRadtran and SMARTS offer an accurate estimate of the monochromatic DNIS, with a relative root mean square error (RMSE) of 5 %, a relative bias of +1 % and acoefficient of determination greater than 0.97. After testing two configurations in SMARTS and three in libRadtran for modelling the monochromatic CSNI, libRadtran exhibits the most accurate results when the AERONET aerosol phase function is presented as a Two Term Henyey-Greenstein phase function. In this case libRadtran exhibited a relative RMSE and a bias of respectively 22 and -19 % and a coefficient of determination of 0.89. The results are promising and pave the way towards reporting the contribution of the broadband circumsolar irradiance to standard DNI measurements.

  16. Improving venous thromboembolism risk assessment compliance using the electronic tool in admitted medical patients.

    PubMed

    Taha, Haytham; Raji, Salama J; Ellahham, Samer; Bashir, Nihal; Al Hanaee, Manar; Boharoon, Hessa; AlFalahi, May

    2015-01-01

    Sheikh Khalifa Medical City (SKMC) in Abu Dhabi is the main tertiary care referral hospital in the United Arab Emirates (UAE) with 560 bed capacity that is fully occupied most of the time. SKMC senior management has made a commitment to make quality and patient safety a top priority. Venous thromboembolism (VTE) risk assessment has been identified as a critical patient safety measure and key performance indicator. The electronic VTE risk assessment form a computerized decision support tool was introduced to improve adherence with deep venous thrombosis (DVT) prophylaxis recommendations. A multidisciplinary task force team was formed and led this quality improvement project. The purpose of this publication is to indicate the quality improvement interventions implemented to enhance compliance with VTE risk assessment and the outcomes of those interventions. We chose to conduct the pilot study in General Medicine as it is the busiest department in the hospital. The study period was from April 2014 till August 2015.The lessons learned were disseminated throughout the hospital. Our aim was to improve VTE risk assessment compliance by using the electronic form in order to ensure patient safety and reduce preventable harm. VTE risk assessment compliance improved in general medicine from 4% to 98%, and overall SKMC compliance from 21% to above 90%. PMID:26734399

  17. Effect of sand and moisture on molten salt properties for open direct absorption solar receiver/storage system

    NASA Astrophysics Data System (ADS)

    AlQaydi, M. S.; Delclos, T.; AlMheiri, S.; McKrell, T.; Calvet, N.

    2016-05-01

    Solar Salt (60 wt. % sodium nitrate, 40 wt. % potassium nitrate) is one candidate salt mixture for the CSPonD Demo project (Concentrated Solar Power On Demand Demonstration), ongoing collaboration between Masdar Institute and MIT. One prototype is under preparation at the Masdar Institute Solar Platform in Abu Dhabi. In this new concept, the salt will be used as an open direct absorption solar receiver integrated with a storage system so that the effects of dust/sand and moisture on the thermophysical properties have to be investigated. Thermal Gravimetric Analysis (TGA) was used to study the thermal stability and mass loss, while a Differential Scanning Calorimeter (DSC) was used to study the thermal properties and heat capacity of the salt mixture with and without sand. Considering the worst case scenario, the maximum mass loss rate at 550 °C, and in a fully open configuration, was measured to be 0.29 % per hour, around 2.34 per day of use (8 h of operation). The effect of sand was the same under nitrogen gas environment and air with moisture, which resulted in decreasing the melting temperature of the salts mixture and increasing its freezing temperature. The thermal properties remained stable even after 3 temperature cycles with impurities. Finally, the salt heat capacity increased due to the addition of 2 wt. % of sand.

  18. Computer-based, Jeopardy™-like game in general chemistry for engineering majors

    NASA Astrophysics Data System (ADS)

    Ling, S. S.; Saffre, F.; Kadadha, M.; Gater, D. L.; Isakovic, A. F.

    2013-03-01

    We report on the design of Jeopardy™-like computer game for enhancement of learning of general chemistry for engineering majors. While we examine several parameters of student achievement and attitude, our primary concern is addressing the motivation of students, which tends to be low in a traditionally run chemistry lectures. The effect of the game-playing is tested by comparing paper-based game quiz, which constitutes a control group, and computer-based game quiz, constituting a treatment group. Computer-based game quizzes are Java™-based applications that students run once a week in the second part of the last lecture of the week. Overall effectiveness of the semester-long program is measured through pretest-postest conceptual testing of general chemistry. The objective of this research is to determine to what extent this ``gamification'' of the course delivery and course evaluation processes may be beneficial to the undergraduates' learning of science in general, and chemistry in particular. We present data addressing gender-specific difference in performance, as well as background (pre-college) level of general science and chemistry preparation. We outline the plan how to extend such approach to general physics courses and to modern science driven electives, and we offer live, in-lectures examples of our computer gaming experience. We acknowledge support from Khalifa University, Abu Dhabi

  19. Local bleaching thresholds established by remote sensing techniques vary among reefs with deviating bleaching patterns during the 2012 event in the Arabian/Persian Gulf.

    PubMed

    Shuail, Dawood; Wiedenmann, Jörg; D'Angelo, Cecilia; Baird, Andrew H; Pratchett, Morgan S; Riegl, Bernhard; Burt, John A; Petrov, Peter; Amos, Carl

    2016-04-30

    A severe bleaching event affected coral communities off the coast of Abu Dhabi, UAE in August/September, 2012. In Saadiyat and Ras Ghanada reefs ~40% of the corals showed signs of bleaching. In contrast, only 15% of the corals were affected on Delma reef. Bleaching threshold temperatures for these sites were established using remotely sensed sea surface temperature (SST) data recorded by MODIS-Aqua. The calculated threshold temperatures varied between locations (34.48 °C, 34.55 °C, 35.05 °C), resulting in site-specific deviations in the numbers of days during which these thresholds were exceeded. Hence, the less severe bleaching of Delma reef might be explained by the lower relative heat stress experienced by this coral community. However, the dominance of Porites spp. that is associated with the long-term exposure of Delma reef to elevated temperatures, as well as the more pristine setting may have additionally contributed to the higher coral bleaching threshold for this site. PMID:26971815

  20. Assessing the potential of Landsat 8 OLI for retrieving salinity in the hypersaline Arabian Gulf

    NASA Astrophysics Data System (ADS)

    Zhao, Jun; Temimi, Marouane

    2016-04-01

    The Arabian Gulf, located in an arid region in the Middle East, has high salinity that can exceed 43 practical salinity units (psu) due to its special conditions, such as high evaporation, low precipitation, and desalination discharge. In this study, a regional algorithm was developed to retrieve salinity using in situ measurements conducted between June 2013 and November 2014 along the western coast of Abu Dhabi, United Arab Emirates (UAE). A multivariate linear regression model using the visible bands of Operational Land Imager (OLI) was proposed and indicated good performance with a determination coefficient (R2) of 0.7. The algorithm was then applied to an OLI scene, which revealed the spatial distribution of salinity over the study area. The findings are favorable for better interpretation of the complex water mass exchange between the Arabian Gulf and the Sea of Oman through the Strait of Hormuz, validating salinity from numerical models, studying the effects of anthropogenic activities and climate change on ecosystem in the hypersaline Arabian Gulf, etc.

  1. Paleogeography and depositional environments of the Lower Cretaceous Thamama Group, Arabian Gulf

    SciTech Connect

    Nairn, A.E.M.; Alsharhan, A.S.

    1985-01-01

    In the Arabian Gulf it is possible to trace the lithological variations in the Lower Cretaceous (Berriasian to Aptian) Thamama Group outward from the type area in Abu Dhabi-Qatar using the wealth of available sub-surface data. It is apparent that the stratigraphic complexities found in correlations of the Lower Cretaceous are only in small part related to depositional problems; rather, to a considerable extent, they reflect the history of geological exploration. The basic paleogeographic situation from littoral conditions against the Precambrian Shield into carbonate ramp sediments to the east, and their relative migration across the Arabian Platform, can be summarized in a number of cartoons. Two principal cycles can be defined, the younger beginning in the Barremian with an extensive clastic wedge. The principal source of sediment lay to the west and northwest. Sandstones are only common in the littoral zone; over much of the shelf, even argillaceous material is relatively uncommon. Of great economic importance was the development of biohermal algae and rudists which accumulated along the margins of an intracratonic basin late in the second cycle. Following deep weathering and resubmergence, these became important hydrocarbon reservoirs (e.g., Bu Hasa field). Arguments can be derived for smaller biohermal accumulations within the intracratonic basin being due to halokinetic activity.

  2. Neutral monosaccharides from a hypersaline tropical environment: Applications to the characterization of modern and ancient ecosystems

    NASA Astrophysics Data System (ADS)

    Moers, M. E. C.; Larter, S. R.

    1993-07-01

    Surficial and buried sediment samples from a hypersaline lagoon-sabkha system (Abu Dhabi, United Arab Emirates) were analysed for carbohydrates (as neutral monosaccharides) to distinguish and characterise various types of recent and ancient tropical ecosystems on a molecular level. The samples consisted of surficial and buried microbial mats, lagoonal sediments containing seagrass ( Halodule uninervis), and mangrove ( Avicennia marina) paleosoils and handpicked mangrove leaves, ranging in age from contemporary to ca. 6000 yr Bp. Analysis of quantitative neutral monosaccharide data by multivariate techniques shows that various groups can be distinguished: intact vascular plant material (mangrove leaf) contains high amounts of arabinose and glucose and hardly any partially methylated monosaccharides, whereas microbial mats in general and lagoonal seagrass sediments show high contributions of fucose, ribose, mannose, galactose and partially methylated monosaccharides. Moreover, surficial microbial mats consisting of filamentous cyanobacteria ( Microcoleus chtonoplastes, Lyngbya aestuarii) can be distinguished from other mats and sediments containing coccoid cyanobacteria ( Entophysalis major) and/or fermenting, sulphate reducing, and methanogenic bacteria on the basis of high contributions of specific groups of partially methylated monosaccharides and other "minor" saccharides. The neutral monosaccharides present in mangrove paleosoils are for a substantial part derived from microorganisms.

  3. Neutral monosaccharides from a hypersaline tropical environment: Applications to the characterization of modern and ancient ecosystems

    SciTech Connect

    Moers, M.E.C.; Larter, S.R. )

    1993-07-01

    Surficial and buried sediment samples from a hypersaline lagoon-sabkha system (Abu Dhabi, United Arab Emirates) were analyzed for carbohydrates (as neutral monosaccharides) to distinguish and characterize various types of recent and ancient tropical ecosystems on a molecular level. The samples consisted of surficial and buried microbial mats, lagoonal sediments containing seagrass (Halodule uninervis), and mangrove (Avicennia marine) paleosoils and handpicked mangrove leaves, ranging in age from contemporary to ca. 6000 yr BP. Analysis of quantitative neutral monosaccharide data by multivariate techniques shows that various groups can be distinguished: intact vascular plant material (mangrove leaf) contains high amounts of arabinose and glucose and hardly any partially methylated monosaccharides, whereas microbial mats in general and lagoonal seagrass sediments show high contributions of fucose, ribose, mannose, galactose, and partially methylated monosaccharides. Moreover, surficial microbial mats consisting of filamentous cyanobacteria (Microcoleus chtonoplastes, Lyngbya aestuarii) can be distinguished from other mats and sediments containing coccoid cyanobacteria (Entophysalis major) and/or fermenting, sulphate reducing, and methanogenic bacteria on the basis of high contributions of specific groups of partially methylated monosaccharides and other [open quotes]minor[close quotes] saccharides. The neutral monosaccharides present in mangrove paleosoils are for a substantial part derived from microorganisms. 22 refs., 4 figs., 4 tabs.

  4. A Field Guide to Pandemic, Epidemic and Sporadic Clones of Methicillin-Resistant Staphylococcus aureus

    PubMed Central

    Monecke, Stefan; Coombs, Geoffrey; Shore, Anna C.; Coleman, David C.; Akpaka, Patrick; Borg, Michael; Chow, Henry; Ip, Margaret; Jatzwauk, Lutz; Jonas, Daniel; Kadlec, Kristina; Kearns, Angela; Laurent, Frederic; O'Brien, Frances G.; Pearson, Julie; Ruppelt, Antje; Schwarz, Stefan; Scicluna, Elizabeth; Slickers, Peter; Tan, Hui-Leen; Weber, Stefan; Ehricht, Ralf

    2011-01-01

    In recent years, methicillin-resistant Staphylococcus aureus (MRSA) have become a truly global challenge. In addition to the long-known healthcare-associated clones, novel strains have also emerged outside of the hospital settings, in the community as well as in livestock. The emergence and spread of virulent clones expressing Panton-Valentine leukocidin (PVL) is an additional cause for concern. In order to provide an overview of pandemic, epidemic and sporadic strains, more than 3,000 clinical and veterinary isolates of MRSA mainly from Germany, the United Kingdom, Ireland, France, Malta, Abu Dhabi, Hong Kong, Australia, Trinidad & Tobago as well as some reference strains from the United States have been genotyped by DNA microarray analysis. This technique allowed the assignment of the MRSA isolates to 34 distinct lineages which can be clearly defined based on non-mobile genes. The results were in accordance with data from multilocus sequence typing. More than 100 different strains were distinguished based on affiliation to these lineages, SCCmec type and the presence or absence of PVL. These strains are described here mainly with regard to clinically relevant antimicrobial resistance- and virulence-associated markers, but also in relation to epidemiology and geographic distribution. The findings of the study show a high level of biodiversity among MRSA, especially among strains harbouring SCCmec IV and V elements. The data also indicate a high rate of genetic recombination in MRSA involving SCC elements, bacteriophages or other mobile genetic elements and large-scale chromosomal replacements. PMID:21494333

  5. The Ecology of Al-Samaliah Island, U.A.E.

    NASA Astrophysics Data System (ADS)

    Zahran, M. A.; Al-Ansari, F. M.

    1999-08-01

    Al-Samaliah Island is one of the inshore islands of U.A.E. located at about 12 km north-east of Abu Dhabi in the Arabian Gulf. It has a flat undulating surface with neither sand dunes nor rocky hills. Its sandy soil is generally salt-affected with variable percentages of salts. The vegetation of Al-Samaliah Island is essentially halophytic and may be categorized as: seagrasses, mangal and littoral saltmarsh types. The main species include: Cymodocea ciliata, Halophila spp. and Halodula univervis (seagrasses), some algae, Avicennia marina (mangrove), Arthrocnemum macrostachyum, Seidlitzia rosmarinus, and Suaeda vermiculata (salt marsh). Other halophytes commonly present are: Anabasis setifera, Halocnemum strobilaeum, Halopeplis perfoliata, Salsola imbricata and Zygophyllum gatarense in addition to two annuals: Schangenia aegyptiaca and Zygophyllum simplex. Phoenix dactylifera is cultivated in local areas covered with sandy sheets. Between the date palm trees there is a thin growth of Cyperus conglomeratus. Some plant species have been analysed chemically to determine their main constituents. The relationships between the environmental factors and the plant life of the islands are discussed.

  6. First description of autumn migration of Sooty Falcon Falco concolor from the United Arab Emirates to Madagascar using satellite telemetry

    USGS Publications Warehouse

    Javed, Salim; Douglas, David C.; Khan, Shahid Noor; Nazeer Shah, Junid; Ali Al Hammadi, Abdullah

    2012-01-01

    The movement and migration pattern of the 'Near Threatened' Sooty Falcon Falco concolor is poorly known. Sooty Falcons breed on the islands of the Arabian Gulf after arriving from their non-breeding areas that are mainly in Madagascar. In the first satellite tracking of the species we fitted a 9.5 g Argos solar powered transmitter on an adult breeding Sooty Falcon off the western coast of Abu Dhabi in the United Arab Emirates. The bird successfully undertook autumn migration to Madagascar, a known wintering area for the species. We document the Sooty Falcon's autumn migration route and stop-over sites. The adult Sooty Falcon initiated its migration at night and with tailwinds, and travelled mainly during daytime hours for 13 days over an inland route of more than 5,656 km. The three stop-over sites in East Africa were characterised by moderate to sparse shrub cover associated with potential sources of water. We discuss the migration pattern of the tracked bird in relation to importance of non-breeding areas for Sooty Falcons and recent declines in numbers in their breeding range.

  7. Acinetobacter baumannii in Localised Cutaneous Mycobacteriosis in Falcons.

    PubMed

    Muller, Margit Gabriele; George, Ancy Rajeev; Walochnik, Julia

    2010-01-01

    Between May 2007 and April 2009, 29 falcons with identically localized, yellowish discolored cutaneous lesions in the thigh and lateral body wall region were presented at Abu Dhabi Falcon Hospital. Out of 18 falcons integrated in this study, 16 tested positive to Mycobacterium. avium complex. The 2 negative falcons tested positive in the Mycobacterium genus PCR. Moreover, 1 falcon tested positive to M. avium. paratuberculosis in tissue samples by PCR. In all cases, blood and fecal samples tested negative. In the acid-fast stain, all samples showed the for mycobacteriosis typical rods. Moreover, in 13 samples Acinetobacter baumannii was detected by PCR and proven by DNA sequencing. Clinical features included highly elevated WBCs, heterophilia, lymphocytopenia, monocytosis, severe anemia and weight loss. A. baumannii, a gram-negative bacillus with the ability to integrate foreign DNA, has emerged as one of the major multidrug resistant bacteria. In veterinary medicine, it has so far been detected in dogs, cats, horses and wild birds. To the authors' knowledge, this is the first report of an A. baumannii infection in falcons and of a veterinary Mycobacterium-Acinetobacter coinfection. PMID:20871867

  8. The Gulf Nuclear Energy Infrastructure Institute : an integrated approach to safety, security and safeguards.

    SciTech Connect

    Beeley, Phillip A.; Boyle, David R.; Williams, Adam David; Mohagheghi, Amir Hossein

    2010-04-01

    Sandia National Laboratories (SNL) and the Nuclear Security Science and Policy Institute (NSSPI) at Texas A&M University are working with Middle East regional partners to set up a nuclear energy safety, safeguards, and security educational institute in the Gulf region. SNL and NSSPI, partnered with the Khalifa University of Science, Technology, and Research (KUSTAR), with suppot from its key nuclear stakeholders, the Emirates Nuclear Energy Corporation (ENEC), and the Federal Authority for Nuclear Regulation (FANR), plan to jointly establish the institute in Abu Dhabi. The Gulf Nuclear Energy Infrastructure Institute (GNEII) will be a KUSTAR-associated, credit-granting regional education program providing both classroom instruction and hands-on experience. The ultimate objective is for GNEII to be autonomous - regionally funded and staffed with personnel capable of teaching all GNEII courses five years after its inauguration. This is a strategic effort to indigenize a responsible nuclear energy culture - a culture shaped by an integrated understanding of nuclear safety, safeguards and security - in regional nuclear energy programs. GNEII also promotes international interests in developing a nuclear energy security and safety culture, increases collaboration between the nuclear energy security and safety communities, and helps to enhance global standards for nuclear energy technology in the Middle East.

  9. The Gulf Nuclear Energy Infrastructure Institute : an integrated approach to safety, security & safeguards.

    SciTech Connect

    Williams, Adam David

    2010-04-01

    Sandia National Laboratories (SNL) and the Nuclear Security Science and Policy Institute (NSSPI) at Texas A&M University are working with Middle East regional partners to set up a nuclear energy safety, safeguards, and security educational institute in the Gulf region. SNL and NSSPI, partnered with the Khalifa University of Science, Technology, and Research (KUSTAR), with suppot from its key nuclear stakeholders, the Emirates Nuclear Energy Corporation (ENEC), and the Federal Authority for Nuclear Regulation (FANR), plan to jointly establish the institute in Abu Dhabi. The Gulf Nuclear Energy Infrastructure Institute (GNEII) will be a KUSTAR-associated, credit-granting regional education program providing both classroom instruction and hands-on experience. The ultimate objective is for GNEII to be autonomous - regionally funded and staffed with personnel capable of teaching all GNEII courses five years after its inauguration. This is a strategic effort to indigenize a responsible nuclear energy culture - a culture shaped by an integrated understanding of nuclear safety, safeguards and security - in regional nuclear energy programs. GNEII also promotes international interests in developing a nuclear energy security and safety culture, increases collaboration between the nuclear energy security and safety communities, and helps to enhance global standards for nuclear energy technology in the Middle East.

  10. Vitamin D deficiency among healthy adolescents in Al Ain, United Arab Emirates

    PubMed Central

    2013-01-01

    Background Although vitamin D deficiency has been studied in various adult populations, there are few data on the prevalence of this nutritional deficiency among healthy adolescents in the United Arab Emirates (UAE). This study was conducted to determine the prevalence of vitamin D deficiency and to examine its correlates in adolescents aged 15 to 18 years. Methods This was a cross-sectional study in urban schools. Healthy adolescents (N=315) from a sample of 8 schools were randomly selected from the 142 schools in Al Ain, Abu Dhabi Emirate. Outcomes measured included serum concentrations of 25-hydroxy vitamin D (25OHD), plasma lipids, blood sugar, blood pressure and anthropometric data, nutrition and lifestyle variables. Results Fourty-one participants (19.7%) were vitamin D deficient (serum 25OHD level ≤15 ng/mL [≤37.5 nmol/L]. Using a cutoff level of 25(OH) D of ≤20 ng/ml [≤50 nmol/l] 143 participants (45.4%) were vitamin D insufficient. Overall 65.1% of study participants were either vitamin D deficient or insufficient. The prevalence of vitamin D deficiency varied between boys (10%) and girls (28%). In a final multivariate model, serum 25(OH) D concentrations were inversely correlated with female gender, consumption of fast food per week, and body mass index and positively correlated with physical activity scores after adjustment for age. Conclusions Vitamin D deficiency and insufficiency were highly prevalent in adolescents, and more common in girls. PMID:23311702

  11. Ibn Rushd, Abu'l Waleed Muhammad Ibn Ahmad Ibn Muhammad [known as Averroes] (1128-98)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Islamic philosopher, lawyer, physician and astronomer, born in Cordoba, Spain, became physician to the Caliph of Morocco. Ibn Rushd's controversial views on philosophy—he was the greatest Islamic proponent of ARISTOTLE—led to the burning of his books and banishment by the Caliph. He wrote numerous books (87 survive) dealing with philosophy, logic, medicine, jurisprudence and astronomy, which ...

  12. Assessment of the Consistency among Precipitation Products over Arid Regions

    NASA Astrophysics Data System (ADS)

    Ghebreyesus, Dawit; Temimi, Marouane

    2016-04-01

    This study addresses the analysis of the consistency among global precipitation products over arid regions. First, precipitation products were examined against in situ observations from the UAE network. Then, the consistency among the different products was assessed regionally over the Arabian Peninsula and the Sahara Desert. Four distinct independently-derived precipitation products, namely, Global Precipitation Climate Center (GPCC), Willmott-Matsuura 2001 (WM), Tropical Rainfall Measurement Mission (TRMM), and CPC Morphing (CMORPH) were examined. Over the UAE, in situ monthly observations from 6 stations over a time period of 11 years, from 2000 to 2010 inclusive, were used. The correlation with in situ observations, Root Mean Square Error (RMSE), and Relative Bias (rBIAS) were calculated to evaluate the precipitation products. The lowest areal averaged RMSE over all stations, ranging from 3.82mm to 9.98mm, was obtained with the GPCC indicating a higher agreement with in situ observations. The average RMSE of GPCC over the country was 6.18mm. However, the highest areal averaged RMSE, ranging from 9.44 to 19.52mm, was obtained with the WM product with average of 13.57mm. The results showed an overestimation of the observed rainfall values across all products with overall average of 42%. CMORPH product was found to be the most inconsistent products spatially across the UAE with rBIAS ranging from -47% in Al Ain to 372% in Dubai. The correlation with in situ observations was found to be higher with GPCC product ranging from 0.8450 to 0.9494. TRMM was second with an average of 0.8413, ranging from 0.7098 to 0.9248. Furthermore, Mean Relative Difference (MRD) was calculated to investigate the precision among the precipitation products. CMORPH was found to be inconsistent spatially being the lowest estimator for four stations (Adu Dhabi, Al Ain, Sharjah, Ras Al Khaimah) whereas being the highest estimator for the rest two stations (Dubai and Fujairah). Generally, the

  13. Individual and Collaborative Technology-Mediated Learning Using Question & Answer Online Discussion Forums--Perceptions of Public Health Learners in Dubai, UAE

    ERIC Educational Resources Information Center

    Awofeso, Niyi; Hassan, Moustafa; Hamidi, Samer

    2016-01-01

    This case study provides evidence-based suggestions for the use of Question and Answer discussion forums for improving quality and assessment of online learning. General online discussion forums are accessible at any time to all subscribers, making it possible for some learners to update, concur with or paraphrase discussions posted earlier by…

  14. 78 FR 8130 - Application for Final Commitment for a Long-Term Loan or Financial Guarantee in Excess of $100...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-05

    ....-manufactured cargo aircraft to Dubai, the United Arab Emirates. Brief non-proprietary description of the...: Principal Supplier: The Boeing Company. Obligor: Dubai Aerospace Enterprise. Guarantor(s): N/A....

  15. 76 FR 6168 - Self-Regulatory Organizations; The NASDAQ Stock Market LLC; NASDAQ OMX PHLX LLC; NASDAQ OMX BX...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-03

    ..., 2009), 74 FR 22191 (May 12, 2009)(SR-NASDAQ-2009-039). Prior to the closing of the Stock Repurchase and... (approximately $497 million in aggregate) from Borse Dubai Limited (``Borse Dubai'') (the ``Stock Repurchase... NASDAQ OMX common stock from Borse Dubai (``Nomura Purchase''). The Stock Repurchase and Nomura...

  16. 77 FR 52025 - Application for Final Commitment for a Long-term Loan or Financial Guarantee in Excess of $100...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-28

    ... the transaction: To support the export of commercial aircraft to Dubai. Brief non-proprietary description of the anticipated use of the items being exported: Aircraft to be exported to Dubai for use in...: Principal Supplier: The Boeing Company Obligor: Dubai Aviation Corporation trading as flydubai...

  17. 76 FR 41757 - Mahan Airways, et al.; Modification of Temporary Denial Order To Add Zarand Aviation as a Denied...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-15

    ...: \\1\\ The February 25, 2011 Order was published in the Federal Register on March 7, 2011. See 76 FR... 52404, Dubai, United Arab Emirates; Mahmoud Amini, G#22 Dubai Airport Free Zone, P.O. Box 393754, Dubai... Mahmoud Amini, as I find that modification of the Temporary Denial Order (``TDO'') is necessary in...

  18. Role Assessment of GIS Analysis and its Reliability while Ranking Urban Sustainability Using Scenarios Specific to Regional Climate, Community and Culture

    NASA Astrophysics Data System (ADS)

    Salmi, H. Al; Abdulmuttalib, H. M.

    2012-07-01

    Urban Sustainability expresses the level of conservation of a city while living a town or consuming its urban resources, but the measurement of urban sustainability depends on what are considered important indicators of conservation besides the permitted levels of consumption in accordance with adopted criteria. This criterion should have common factors that are shared for all the members tested or cities to be evaluated as in this particular case for Abu Dhabi, but also have specific factors that are related to the geographic place, community and culture, that is the measures of urban sustainability specific to a middle east climate, community and culture where GIS Vector and Raster analysis have a role or add a value in urban sustainability measurements or grading are considered herein. Scenarios were tested using various GIS data types to replicate urban history (ten years period), current status and expected future of Abu Dhabi City setting factors to climate, community needs and culture. The useful Vector or Raster GIS data sets that are related to every scenario where selected and analysed in the sense of how and how much it can benefit the urban sustainability ranking in quantity and quality tests, this besides assessing the suitable data nature, type and format, the important topology rules to be considered, the useful attributes to be added, the relationships which should be maintained between data types of a geo- database, and specify its usage in a specific scenario test, then setting weights to each and every data type representing some elements of a phenomenon related to urban suitability factor. The results of assessing the role of GIS analysis provided data collection specifications such as the measures of accuracy reliable to a certain type of GIS functional analysis used in an urban sustainability ranking scenario tests. This paper reflects the prior results of the research that is conducted to test the multidiscipline evaluation of urban

  19. Structure and Optical Properties of the Atmospheric Boundary Layer over Dusty Hot Deserts

    NASA Astrophysics Data System (ADS)

    Chalermthai, B.; Al Marzooqi, M.; Basha, G.; Ouarda, T.; Armstrong, P.; Molini, A.

    2014-12-01

    Strong sensible heat fluxes and deep turbulent mixing - together with marked dustiness and a low substrate water content - represent a characteristic signature of the atmospheric boundary layer (ABL) over hot deserts, resulting in "thicker" mixing layers and peculiar optical properties. Beside these main common features however, desert boundary layers present extremely complex local structures that have been scarcely addressed in the literature, and whose understanding is essential in modeling processes such as transport and deposition of dust and pollutants, local wind fields, turbulent fluxes and their impacts on the sustainable development, human health and solar energy harvesting in these regions. In this study, we explore the potential of the joint usage of Lidar Ceilometer backscattering profiles and sun-photometer optical depth retrievals to quantitatively determine the vertical aerosol profile over dusty hot desert regions. Toward this goal, we analyze a continuous record of observations of the atmospheric boundary layer height from a single lens LiDAR ceilometer operated at Masdar Institute Field Station (24.4425N 54.6163E, Abu Dhabi, United Arab Emirates), starting March 2013, and the concurrent measurements of aerosol optical depth derived independently from the Masdar Institute AERONET sun-photometer. The main features of the desert ABL are obtained from the ceilometer range corrected backscattering profiles through bi-dimensional clustering technique we developed as a modification of the recently proposed single-profile clustering method, and therefore "directly" and "indirectly" calibrated to obtain a full diurnal cycle climatology of the aerosol optical depth and aerosol profiles. The challenges and the advantages of applying a similar methodology to the monitoring of aerosols and dust over hyper-arid regions are also discussed, together with the issues related to the sensitivity of commercial ceilometers to changes in the solar background.

  20. Environmental Risks to Public Health in the United Arab Emirates: A Quantitative Assessment and Strategic Plan

    PubMed Central

    Farah, Zeinab S.

    2012-01-01

    Background: Environmental risks to health in the United Arab Emirates (UAE) have shifted rapidly from infectious to noninfectious diseases as the nation has developed at an unprecedented rate. In response to public concerns over newly emerging environmental risks, the Environment Agency–Abu Dhabi commissioned a multidisciplinary environmental health strategic planning project. Objectives: In order to develop the environmental health strategic plan, we sought to quantify the illnesses and premature deaths in the UAE attributable to 14 environmental pollutant categories, prioritize these 14 risk factors, and identify interventions. Methods: We estimated the disease burden imposed by each risk factor using an attributable fraction approach, and we prioritized the risks using an empirically tested stakeholder engagement process. We then engaged government personnel, scientists, and other stakeholders to identify interventions. Results: The UAE’s environmental disease burden is low by global standards. Ambient air pollution is the leading contributor to premature mortality [~ 650 annual deaths; 95% confidence interval (CI): 140, 1,400]. Risk factors leading to > 10,000 annual health care facility visits included occupational exposures, indoor air pollution, drinking water contamination, seafood contamination, and ambient air pollution. Among the 14 risks considered, on average, outdoor air pollution was ranked by the stakeholders as the highest priority (mean rank, 1.4; interquartile range, 1–2) and indoor air pollution as the second-highest priority (mean rank 3.3; interquartile range, 2–4). The resulting strategic plan identified 216 potential interventions for reducing environmental risks to health. Conclusions: The strategic planning exercise described here provides a framework for systematically deciding how to invest public funds to maximize expected returns in environmental health, where returns are measured in terms of reductions in a population

  1. Gas souring by thermochemical sulfate reduction at 140{degrees}C

    SciTech Connect

    Worden, R.H.; Smalley, P.C.; Oxtoby, N.H.

    1995-06-01

    Natural gas in the Permian-Triassic Khuff Formation of Abu Dhabi contains variable amounts of H{sub 2}S. Gas souring occurred through thermochemical sulfate reduction of anhydrite by hydrocarbon gases. Sour gas is observed only in reservoirs hotter than a critical reaction temperature: 140{degrees}C. Petrographic examination of core from a wide depth range showed that the anhydrite reactant has been replaced by calcite reaction product only in samples deeper than 4300 m. Gas composition data show that only reservoirs deeper than 4300 m contain large quantities of H{sub 2}S (i.e., >10%). At present-day geothermal gradients, 4300 m is equivalent to 140{degrees}C. Fluid inclusion analysis of calcite reaction product has shown that calcite growth only became significant at temperatures greater than 140{degrees}C. Thus, three independent indicators all show that 140{degrees}C is the critical temperature above which gas souring by thermochemical sulfate reduction begins. The previously suggested lower temperature thresholds for other sour gas provinces (80-130{degrees}C) derive from gas composition data that may not allow adequately either for the reservoir temperature history or for the migration of gas generated at higher temperatures into present traps. Conversely, published proposals for higher threshold temperature (180-200{degrees}C) derive from short duration experimental data that are not easily extrapolated to geologically realistic temperatures and time scales. Therefore, the temperature of 140{degrees}C derived from our study of the Khuff Formation may be the best estimate of temperature required for in-situ thermochemical sulfate reduction to produce the high H{sub 2}S concentrations encountered in deep carbonate gas reservoirs.

  2. Application of δ13c Values Recorded in Neoproterozoic Marine Dolomite As a Marker for Global Correlations: Significance of Major δ13c Variations for the Carbon Cycle Based on Studies of Modern Dolomite Precipitating Environments

    NASA Astrophysics Data System (ADS)

    McKenzie, J. A.; Bontognali, T. R. R.; Bahniuk, A.; Vasconcelos, C.

    2014-12-01

    Since the early Paleozoic, the average bulk δ13C value of marine carbonates has remained relatively positive varying between 0 and +4‰ with distinctive positive excursions that are associated with global changes in the carbon cycle. Unlike the Phanerozoic δ13C data for marine limestones, a major δ13C excursion has been recorded in a globally deposited Neoproterozoic marine dolomite formation, known as the cap dolostone. This excursion with δ13C values ranging systematically between -3 and -5‰ represents a global chronstratigraphic marker used to correlate the end of the major Marinoan glaciation at 636 Ma1. Does this excursion signify a primary seawater value and how might it be interpreted as a primary carbon cycle signal, considering the widespread distribution of the cap dolostone? Studies of modern dolomite precipitating environments, such as supratidal sabkhas of Abu Dhabi, U.A.E. and Qatar and coastal hypersaline lagoons of Rio de Janiero State, Brazil, indicate that microbial activity or the biological products, thereof, influence or mediate mineral formation. The precipitating solutions are sourced from normal seawater, which has experienced variable stages of concentration through evaporative processes. Comparison of δ13C values of sabkha dolomite with that formed in the hypersaline lagoons reveals that the former are always rather positive (approx. +2 to +7 ‰), whereas the latter are always negative (approx. -5‰ to -11‰). During very early diagenesis, the original δ13C value of the initial precipitate is not necessarily retained, indicating that synsedimentary processes can alter the carbon signal prior to burial and later diagenesis. However, the potential for very early lithification of microbial dolomite promotes the preservation of original δ13C values, which, thus, can be useful for evaluation of the ancient carbon cycle. 1Halverson, G.P. et al., 2005. Toward a Neoproterozoic composite carbon-isotope record, GSA Bulletin, v. 117, p

  3. The Cleveland Clinic: a distinctive model of American medicine

    PubMed Central

    2014-01-01

    The Cleveland Clinic is a large healthcare system based in Cleveland, Ohio (USA) with an extensive American (throughout Northeast Ohio; Weston, Florida; and Las Vegas, Nevada) and global presence (in Abu Dhabi, UAE; and with training alumni in >70 countries). Cleveland Clinic was founded in 1921 as a distinctive medical model with a tripartite mission of “better care of the sick, investigation of their problems, and more teaching of those who serve” which has been vibrantly maintained. Distinctive aspects of the Clinic include its being a closed staff, salaried, group practice which is physician-led and which features 1-year faculty appointments and a vigorous annual review process for all physicians and leaders. Regarding its tripartite mission, the Clinic has demonstrated longstanding clinical excellence, e.g., with consistent ranking as first in cardiovascular care in U.S. News and World Report and top-10 rankings in at least 12 other specialties. A longstanding tradition of research has contributed landmark discoveries, including performance of the first coronary revascularization procedure, the first intra-coronary angiogram, the world’s third face transplant, ongoing development of a breast cancer vaccine, etc. Regarding education, the Clinic serves many educational audiences excellently through its Education Institute. These audiences include medical students, graduate medical trainees, faculty physicians, nurses, and allied health providers (both within the Cleveland Clinic and from other institutions worldwide), and patients. The Education Institute also includes the Cleveland Clinic Academy, which offers training in leadership competencies to physicians, nurses, and healthcare administrators both within the Cleveland Clinic and to visitors from abroad (through the Executive Visitors Program and the Samson Global Leadership Academy for Healthcare Executives). The latter program is an intensive 2-week residential leadership development course for

  4. Factors affecting the motivation of healthcare professionals providing care to Emiratis with type 2 diabetes

    PubMed Central

    Alhyas, Layla; Nielsen, Jessica D Jones; Dawoud, Dalia; Majeed, Azeem

    2013-01-01

    Objective We aimed to identify facilitators of and barriers to healthcare professionals' motivation in a diabetes centre in the United Arab Emirates (UAE). Design A qualitative research approach was employed using semistructured interviews to assess perception of and attitudes regarding healthcare professionals' motivation in providing good quality diabetes care. Setting A diabetes centre located in Abu-Dhabi, UAE. Participants Healthcare professionals including specialist physicians, dieticians, podiatrists, health educators and nurses were recruited through purposive sampling. Main outcome measures After data collection, the audiotaped interviews were transcribed verbatim and subjected to content analysis. Results Nine semistructured interviews were conducted with healthcare professionals of various professional backgrounds. Important facilitators and barriers related to patient, professional, organization and cultural factors were identified. Barriers that related to heavy workload, disjointed care, lack of patient compliance and awareness, and cultural beliefs and attitudes about diabetes were common. Key facilitators included the patient's role in achieving therapeutic outcomes as well as compliance, cooperation and communication. Conclusion This qualitative study provides some unique insights about factors affecting healthcare professionals' motivation in providing good quality care. To improve the motivation of healthcare professionals in the management of diabetes and therefore the quality of diabetes care, several steps are needed. Importantly, the role of primary care should be reinforced and strengthened regarding the management of type 2 diabetes mellitus, privacy of the consultation time should be highly protected and regulated, and awareness of the Emirate culture and its impact on health should be disseminated to the healthcare professionals providing care to Emirates with diabetes. Also, greater emphasis should be placed on educating Emiratis with

  5. New interpretation of vertically aligned gypsum fabrics: Implications for gypsum depositional environments and diagenesis

    SciTech Connect

    Rosen, M.R. ); Warren, J.K. )

    1990-05-01

    Gypsum and anhydrite fabrics in trenches and deep 500-m cores from Bristol Dry Lake, California, exhibit a vertical alignment of crystals similar to the fabric seen in bottom-nucleated brine pond gypsum. However, geochemical and sedimentologic evidence indicates that the gypsum formed in Bristol Dry Lake precipitated as a diagenetic displacive mineral within the sediment where groundwater saturated with respect to gypsum recharges around the playa margin (groundwater seepage gypsum). Evidence for displacive growth of gypsum comes from (1) the geometry of the deposit, (2) stable isotopic data and the water chemistry of the brine, and (3) inclusions of matrix that follow twin planes and completely surround crystals as they grow. Because the fabrics and textures of this diagenetic gypsum formed by groundwater in playa settings are similar to those of primary gypsum formed in a brine pond, it is necessary to refine the criteria for the distinction between subaerial, groundwater, and subaqueous gypsum. When compared to the features observed in a Holocene subaqueous gypsum deposit (Marion Lake, Australia) and a Holocene subaerial deposit (Abu Dhabi sabkha), the following criteria can be used to distinguish between the three different types of gypsum deposits: (1) amount of matrix, (2) geometry of the deposit, (3) gypsum crystal size and orientation, (4) distribution of matrix and fluid inclusions within individual crystals, and (5) fabric of the matrix around the gypsum. Distinguishing between subaqueous and groundwater gypsum may be difficult. However, sufficient mesoscale differences exist such that, in most cases, the different gypsum types can be resolved from core slabs and thin sections. These criteria may be applied in ancient examples even after gypsum has been converted to anhydrite.

  6. Can AERONET data be used to accurately model the monochromatic beam and circumsolar irradiances under cloud-free conditions in desert environment?

    NASA Astrophysics Data System (ADS)

    Eissa, Y.; Blanc, P.; Wald, L.; Ghedira, H.

    2015-12-01

    Routine measurements of the beam irradiance at normal incidence include the irradiance originating from within the extent of the solar disc only (DNIS), whose angular extent is 0.266° ± 1.7 %, and from a larger circumsolar region, called the circumsolar normal irradiance (CSNI). This study investigates whether the spectral aerosol optical properties of the AERONET stations are sufficient for an accurate modelling of the monochromatic DNIS and CSNI under cloud-free conditions in a desert environment. The data from an AERONET station in Abu Dhabi, United Arab Emirates, and the collocated Sun and Aureole Measurement instrument which offers reference measurements of the monochromatic profile of solar radiance were exploited. Using the AERONET data both the radiative transfer models libRadtran and SMARTS offer an accurate estimate of the monochromatic DNIS, with a relative root mean square error (RMSE) of 6 % and a coefficient of determination greater than 0.96. The observed relative bias obtained with libRadtran is +2 %, while that obtained with SMARTS is -1 %. After testing two configurations in SMARTS and three in libRadtran for modelling the monochromatic CSNI, libRadtran exhibits the most accurate results when the AERONET aerosol phase function is presented as a two-term Henyey-Greenstein phase function. In this case libRadtran exhibited a relative RMSE and a bias of respectively 27 and -24 % and a coefficient of determination of 0.882. Therefore, AERONET data may very well be used to model the monochromatic DNIS and the monochromatic CSNI. The results are promising and pave the way towards reporting the contribution of the broadband circumsolar irradiance to standard measurements of the beam irradiance.

  7. Assessing the benefits of the integration of location information in e-Government

    NASA Astrophysics Data System (ADS)

    Vandenbroucke, D.; Vancauwenberghe, G.; Crompvoets, J.

    2014-12-01

    Over the past years more and more geospatial data have been made readily accessible for different user communities as part of government efforts to set-up Spatial Data Infrastructures. As a result users from different sectors can search, find and bind spatial information and combine it with their own data resources and applications. However, too often, spatial data applications and services remain organised as separate silos, not well integrated in the business processes they are supposed to support. The European Union Location Framework (EULF), as part of the Interoperability Solutions for European Public Administrations (ISA) Programme of the EU (EC-DG DIGIT), aims to improve the integration of location information in e-Government processes through a better policy and strategy alignment, and through the improved legal, organisational, semantic and technical interoperability of data and systems. The EULF seeks to enhance interactions between Governments, Businesses and Citizens with location information and location enabled services and to make them part of the more generic ICT infrastructures of public administrations. One of the challenges that arise in this context is to describe, estimate or measure the benefits and added value of this integration of location information in e-Government. In the context of the EULF several existing approaches to assess the benefits of spatially enabled services and applications in e-Government have been studied. Two examples will be presented, one from Denmark, the other from Abu Dhabi. Both served as input to the approach developed for the EULF. A concrete case to estimate benefits at service and process level will be given with the aim to respond questions such as "which indicators can be used and how to measure them", "how can process owners collect the necessary information", "how to solve the benefits attribute question" and "how to extrapolate findings from one level of analysis to another"?

  8. Accurate Estimation of the Fine Layering Effect on the Wave Propagation in the Carbonate Rocks

    NASA Astrophysics Data System (ADS)

    Bouchaala, F.; Ali, M. Y.

    2014-12-01

    The attenuation caused to the seismic wave during its propagation can be mainly divided into two parts, the scattering and the intrinsic attenuation. The scattering is an elastic redistribution of the energy due to the medium heterogeneities. However the intrinsic attenuation is an inelastic phenomenon, mainly due to the fluid-grain friction during the wave passage. The intrinsic attenuation is directly related to the physical characteristics of the medium, so this parameter is very can be used for media characterization and fluid detection, which is beneficial for the oil and gas industry. The intrinsic attenuation is estimated by subtracting the scattering from the total attenuation, therefore the accuracy of the intrinsic attenuation is directly dependent on the accuracy of the total attenuation and the scattering. The total attenuation can be estimated from the recorded waves, by using in-situ methods as the spectral ratio and frequency shift methods. The scattering is estimated by assuming the heterogeneities as a succession of stacked layers, each layer is characterized by a single density and velocity. The accuracy of the scattering is strongly dependent on the layer thicknesses, especially in the case of the media composed of carbonate rocks, such media are known for their strong heterogeneity. Previous studies gave some assumptions for the choice of the layer thickness, but they showed some limitations especially in the case of carbonate rocks. In this study we established a relationship between the layer thicknesses and the frequency of the propagation, after certain mathematical development of the Generalized O'Doherty-Anstey formula. We validated this relationship through some synthetic tests and real data provided from a VSP carried out over an onshore oilfield in the emirate of Abu Dhabi in the United Arab Emirates, primarily composed of carbonate rocks. The results showed the utility of our relationship for an accurate estimation of the scattering

  9. Addiction Science: A Rationale and Tools for a Public Health Response to Drug Abuse

    PubMed Central

    Rawson, Richard A.; Rieckmann, Traci; Gust, Steven W.

    2014-01-01

    New scientific knowledge and effective, evidence-based interventions have provided health leaders and policymakers a remarkable paradigm to guide the development of addiction treatment services around the world. The definition of addiction as a brain disease, validated screening and assessment tools, medication-assisted treatment, and effective behavioral treatments have served as vehicles for both the United States and other countries to guide the transformation of their substance abuse treatment systems. Seeking to expand international research and infrastructure, the National Institute on Drug Abuse (NIDA)'s International Program has engaged international investigators and institutions in addiction research to promote dissemination of addiction science globally. This paper presents three mixed-methods case studies to exemplify the use of advancements in evidence-based practice in addiction treatment as guides and tools for the creation or further development of treatment systems in three countries, Vietnam, Lebanon, and Abu Dhabi. Results indicate that a framework of evidence-based medicine and empirical science creates a necessary platform from which objective conversations about addictions may begin. Other facilitative factors that help create treatment programs internationally include: a receptive and supportive government, support from international donors and technical experts, networking and interest from other international organizations, and often a synergistic and concerted effort by multiple entities and partners. Despite substantial differences in the circumstances that generated these initiatives and the varying scope of the services, common themes across these efforts have been the implementation of science-based approaches to systems transformation and support for a public health approach to addressing drug abuse and addiction. PMID:26752803

  10. Experimental and Computational Study of Multiphase Flow Hydrodynamics in 2D Trickle Bed Reactors

    NASA Astrophysics Data System (ADS)

    Nadeem, H.; Ben Salem, I.; Kurnia, J. C.; Rabbani, S.; Shamim, T.; Sassi, M.

    2014-12-01

    Trickle bed reactors are largely used in the refining processes. Co-current heavy oil and hydrogen gas flow downward on catalytic particle bed. Fine particles in the heavy oil and/or soot formed by the exothermic catalytic reactions deposit on the bed and clog the flow channels. This work is funded by the refining company of Abu Dhabi and aims at mitigating pressure buildup due to fine deposition in the TBR. In this work, we focus on meso-scale experimental and computational investigations of the interplay between flow regimes and the various parameters that affect them. A 2D experimental apparatus has been built to investigate the flow regimes with an average pore diameter close to the values encountered in trickle beds. A parametric study is done for the development of flow regimes and the transition between them when the geometry and arrangement of the particles within the porous medium are varied. Liquid and gas flow velocities have also been varied to capture the different flow regimes. Real time images of the multiphase flow are captured using a high speed camera, which were then used to characterize the transition between the different flow regimes. A diffused light source was used behind the 2D Trickle Bed Reactor to enhance visualizations. Experimental data shows very good agreement with the published literature. The computational study focuses on the hydrodynamics of multiphase flow and to identify the flow regime developed inside TBRs using the ANSYS Fluent Software package. Multiphase flow inside TBRs is investigated using the "discrete particle" approach together with Volume of Fluid (VoF) multiphase flow modeling. The effect of the bed particle diameter, spacing, and arrangement are presented that may be used to provide guidelines for designing trickle bed reactors.

  11. Depositional setting of the Upper Jurassic Hith Anhydrite of the Arabian Gulf: An analog to holocene evaporites of the United Arab Emirates and Lake MacLeod of Western Australia

    SciTech Connect

    Alsharhan, A.S. ); Kendall, C.G.St.C. )

    1994-07-01

    The Upper Jurassic Hith Anhydrite is a major hydrocarbon seal in the Arabian Gulf region. Outcrops, core samples from the subsurface, and the literature indicate that the Hith Formation is composed mainly of anhydrite. In most locations where a section of the Hith Formation has been measured, this unit contains less than 20% carbonate much of which is in the form of thin laminations. This lack of carbonate, locally thick layers of salt, and the predominance of anhydrite favor a playa for the setting in which this sediment was accumulated. In fact, much of the Hith has the sedimentary characteristics of the Holocene Lake MacLeod playa of Western Australia, which is dominated by layers of gypsum and halite (what little carbonate that occurs is found in layers at the base of the section). Locally the Hith appears to have accumulated in a sabkha setting, particularly toward central Abu Dhabi where it pinches out into shallow-water, and peritidal carbonate. This sabkha setting is indicated by the interbedded relationship of the Hith anhydrites with these carbonates and the local predominance of horizontally flattened nodules and enterolithic layers of anhydrite. These latter features match some of the characteristic fabrics found in the Holocene coastal sabkhas of the United Arab Emirates. As with the local occurrences in the Hith, the Holocene sabkhas are dominated by carbonates and are divisible into a series of lateral facies belts. These are also expressed as equivalent vertical layers. Traced from seaward to landward, or from the base of the vertical sequence upward, these facies are characterized by (1) algal mat, (2) a layer of a gypsum crystal mush (3) active anhydrite replacement of gypsum (4) anhydrite with no gypsum mush, and (5) recycled eolianite and storm-washover sediments.

  12. Generation of isotopically and compositionally distinct water during thermochemical sulfate reduction (TSR) in carbonate reservoirs: Triassic Feixianguan Formation, Sichuan Basin, China

    NASA Astrophysics Data System (ADS)

    Jiang, Lei; Worden, Richard H.; Cai, Chunfang

    2015-09-01

    Thermochemical sulfate reduction (TSR), the reaction of petroleum with anhydrite in reservoirs resulting in the growth of calcite and the accumulation of H2S, has been documented in the Feixianguan Formation dolomite reservoir in the Sichuan Basin, China. Fluid inclusion salinity and homogenization temperature data have shown that TSR results in a decrease in salinity from a pre-TSR value of 25 wt.% down to 5 wt.% as a result of water created as a byproduct of progressive TSR. We have studied the isotopic character of the water that resulted from TSR in the Feixianguan Formation by analyzing the oxygen isotopes of TSR calcite and determining the oxygen isotopes of the water in equilibrium with the TSR calcite at the temperatures determined by aqueous fluid inclusion analysis. We have compared these TSR-waters to water that would have been in equilibrium with the bulk rock, also at the temperatures determined by aqueous fluid inclusion analysis. We have found that the TSR-waters are relatively depleted in oxygen isotopes (by up to 8‰ compared to what would be expected at equilibrium between the bulk rock and water) since this type of water was specifically derived from anhydrite. The generation of relatively large volumes of low salinity, low δ18O water associated with advanced TSR in the Feixianguan Formation has also been reported in the Permian Khuff Formation in Abu Dhabi and from sour Devonian fields in the Western Canada Basin. This suggests that TSR-derived water may be a common phenomenon, the effects of which on mesogenetic secondary porosity and reservoir quality have previously been underappreciated.

  13. Distinguishing seawater from geologic brine in saline coastal groundwater using radium-226; an example from the Sabkha of the UAE

    USGS Publications Warehouse

    Kraemer, Thomas F.; Wood, Warren W.; Sanford, Ward E.

    2014-01-01

    Sabkhat (Salt flats) are common geographic features of low-lying marine coastal areas that develop under hyper-arid climatic conditions. They are characterized by the presence of highly concentrated saline solutions and evaporitic minerals, and have been cited in the geologic literature as present-day representations of hyper-arid regional paleohydrogeology, paleoclimatology, coastal processes, and sedimentation in the geologic record. It is therefore important that a correct understanding of the origin and development of these features be achieved. Knowledge of the source of solutes is an important first step in understanding these features. Historically, two theories have been advanced as to the main source of solutes in sabkha brines: an early concept entailing seawater as the obvious source, and a more recent and dynamic theory involving ascending geologic brine forced upward into the base of the sabkha by a regional hydraulic gradient in the underlying formations. Ra-226 could uniquely distinguish between these sources under certain circumstances, as it is typically present at elevated activity of hundreds to thousands of Bq/m3 (Becquerels per cubic meter) in subsurface formation brines; at exceedingly low activities in open ocean and coastal water; and not significantly supplied to water from recently formed marine sedimentary framework material. The coastal marine sabkha of the Emirate of Abu Dhabi was used to test this hypothesis. The distribution of Ra-226 in 70 samples of sabkha brine (mean: 700 Bq/m3), 7 samples of underlying deeper formation brine (mean: 3416 Bq/m3), the estimated value of seawater (< 16 Bq/m3) and an estimate of supply from sabkha sedimentary framework grains (<~6 Bq/m3) provide the first direct evidence that ascending geologic brine contributes significantly to the solutes of this sabkha system.

  14. Escherichia coli Isolates Causing Asymptomatic Bacteriuria in Catheterized and Noncatheterized Individuals Possess Similar Virulence Properties ▿

    PubMed Central

    Watts, Rebecca E.; Hancock, Viktoria; Ong, Cheryl-Lynn Y.; Vejborg, Rebecca Munk; Mabbett, Amanda N.; Totsika, Makrina; Looke, David F.; Nimmo, Graeme R.; Klemm, Per; Schembri, Mark A.

    2010-01-01

    Urinary tract infections (UTIs) are among the most common infectious diseases of humans, with Escherichia coli being responsible for >80% of all cases. Asymptomatic bacteriuria (ABU) occurs when bacteria colonize the urinary tract without causing clinical symptoms and can affect both catheterized patients (catheter-associated ABU [CA-ABU]) and noncatheterized patients. Here, we compared the virulence properties of a collection of ABU and CA-ABU nosocomial E. coli isolates in terms of antibiotic resistance, phylogenetic grouping, specific UTI-associated virulence genes, hemagglutination characteristics, and biofilm formation. CA-ABU isolates were similar to ABU isolates with regard to the majority of these characteristics; exceptions were that CA-ABU isolates had a higher prevalence of the polysaccharide capsule marker genes kpsMT II and kpsMT K1, while more ABU strains were capable of mannose-resistant hemagglutination. To examine biofilm growth in detail, we performed a global gene expression analysis with two CA-ABU strains that formed a strong biofilm and that possessed a limited adhesin repertoire. The gene expression profile of the CA-ABU strains during biofilm growth showed considerable overlap with that previously described for the prototype ABU E. coli strain, 83972. This is the first global gene expression analysis of E. coli CA-ABU strains. Overall, our data suggest that nosocomial ABU and CA-ABU E. coli isolates possess similar virulence profiles. PMID:20444967

  15. 76 FR 58853 - In the Matter of the Designation of Muhammad Hisham Muhammad Isma'il Abu Ghazala, Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-22

    ... might have a constitutional presence in the United States would render ineffectual the blocking and... have a constitutional presence in the United States, because to do so would render ] ineffectual...

  16. 77 FR 38126 - In the Matter of the Designation of Abubakar Adam Kambar, Also Known as Abu Yasir, Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-26

    ... the Order who might have a constitutional presence in the United States would render ineffectual the... determination who might have a constitutional presence in the United States, because to do so would...

  17. 76 FR 73760 - In the Matter of the Designation of Ibrahim Suleiman Hamad al-Hablain, Also Known as Abu Jabal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... ``prior notice to persons determined to be subject to the Order who might have a constitutional presence... provided to any person subject to this determination who might have a constitutional presence in the...

  18. Geology and evaluation of tungsten anomalies, Buhairan-Abu Khurg area, southeastern part of the Uyaijah ring structure, Kingdom of Saudi Arabia

    USGS Publications Warehouse

    Dodge, F.C.W.

    1973-01-01

    Previous geochemical exploration has indicated areas in the Precambrian Al Uyaijah ring structure for further investigation. This report encompasses the results of geologic and geochemical investigations made in a 40 square kilometer area located on the southeast perimeter of the ring structure, an area where previous geochemical exploration revealed anomalous tungsten and molybdenum values. Igneous rocks exposed in the area include batholithic plutonic rocks, intrusive rocks of the ring dike, hypabyssal dike rocks, and late epithermal quartz veins; remnants of metamorphosed, prebatholithic rocks are also exposed. About two-thirds of the area is covered with a veneer of surficial debris. Structural patterns of the area are dominated by the ring structure. The principal mineralization consists of powellite and scheelite in high-temperature, quartz-rich veinlets and pods and in contact metamorphic rocks. Although the areas of metallization account for the previously discovered sediment geochemical anomalies, mineralization is sparse, and no currently valuable mineral deposits are known or thought to be present in the area.

  19. 78 FR 24463 - In the Matter of the Review of the Designation of the Abu Sayyaf Group (ASG) (and Other Aliases...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-25

    ... Terrorist Organization Pursuant to Section 219 of the Immigration and Nationality Act, as Amended Based upon... for the 2008 designation of the aforementioned organization as a Foreign Terrorist Organization have... determine that the designation of the aforementioned organization as a Foreign Terrorist...

  20. Khayyam [al-Khayyam], Omar [Abu ol-Fath ebn-Ebrahim `Omar ol-Khayyami of Nishapur] (c. 1044-c. 1123)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Poet, mathematician, astronomer, born in Nishapur, Persia (now Iran), to a family of Arabic tent makers (a translation of his name), an outstanding mathematician and astronomer. The Saljuq Sultan, Malikshah Jalal al-Din, appointed him to the observatory at Ray around 1074 to determine the solar calendar, as an aid to tax collection. Khayyam developed a calendar called Al-Tarikh-al-Jalali, which h...

  1. Distribution of living larger benthic foraminifera in littoral environments of the United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Fiorini, Flavia; Lokier, Stephen W.

    2015-04-01

    The distribution of larger benthic foraminifera in Recent littoral environment of the United Arab Emirates (Abu Dhabi and Western regions) was investigated with the aim of understanding the response of those foraminifera to an increase in water salinity. For this purpose, 100 sediment samples from nearshore shelf, beach-front, channel, lagoon, and intertidal environment were collected. Sampling was undertaken at a water depth shallower than 15 m in water with a temperature of 22 to 35˚C, a salinity ranging from 40 to 60‰ and a pH of 8. Samples were stained with rose Bengal at the moment of sample collection in order to identify living specimens. The most abundant epiphytic larger benthic foraminifera in the studied area were Peneroplis pertusus and P. planatus with less common Spirolina areatina, S. aciculate and Sorites marginalis. The living specimens of the above mentioned species with normal test growing were particularly abundant in the nearshore shelf and lagoonal samples collected on seaweed. Dead specimens were concentrated in the coarser sediments of the beach-front, probably transported from nearby environments. Shallow coastal ponds are located in the upper intertidal zone and have a maximum salinity of 60‰ and contain abundant detached seagrass. Samples collected from these ponds possess a living foraminifera assemblage dominated by Peneroplis pertusus and P. planatus. High percentages (up to 50% of the stained assemblage) of Peneroplis presented abnormality in test growth, such as the presence of multiple apertures with reduced size, deformation in the general shape of the test, irregular suture lines and abnormal coiling. The high percentage of abnormal tests reflects natural environmental stress mainly caused by high and variable salinity. The unique presence of living epiphytic species, suggests that epiphytic foraminifera may be transported into the pond together with seagrass and continued to live in the pond. This hypothesis is supported by

  2. The impact of hospital accreditation on clinical documentation compliance: a life cycle explanation using interrupted time series analysis

    PubMed Central

    Devkaran, Subashnie; O'Farrell, Patrick N

    2014-01-01

    Objective To evaluate whether accredited hospitals maintain quality and patient safety standards over the accreditation cycle by testing a life cycle explanation of accreditation on quality measures. Four distinct phases of the accreditation life cycle were defined based on the Joint Commission International process. Predictions concerning the time series trend of compliance during each phase were specified and tested. Design Interrupted time series (ITS) regression analysis of 23 quality and accreditation compliance measures. Setting A 150-bed multispecialty hospital in Abu Dhabi, UAE. Participants Each month (over 48 months) a simple random sample of 24% of patient records was audited, resulting in 276 000 observations collected from 12 000 patient records, drawn from a population of 50 000. Intervention(s) The impact of hospital accreditation on the 23 quality measures was observed for 48 months, 1 year preaccreditation (2009) and 3-year postaccreditation (2010–2012). Main outcome measure(s) The Life Cycle Model was evaluated by aggregating the data for 23 quality measures to produce a composite score (YC) and fitting an ITS regression equation to the unweighted monthly mean of the series. Results The four phases of the life cycle are as follows: the initiation phase, the presurvey phase, the postaccreditation slump phase and the stagnation phase. The Life Cycle Model explains 87% of the variation in quality compliance measures (R2=0.87). The ITS model not only contains three significant variables (β1, β2 and β3) (p≤0.001), but also the size of the coefficients indicates that the effects of these variables are substantial (β1=2.19, β2=−3.95 (95% CI −6.39 to −1.51) and β3=−2.16 (95% CI −2.52 to −1.80). Conclusions Although there was a reduction in compliance immediately after the accreditation survey, the lack of subsequent fading in quality performance should be a reassurance to researchers, managers, clinicians and accreditors

  3. Exploring biotic vs. abiotic controls on syngenetic carbonate and clay mineral precipitation

    NASA Astrophysics Data System (ADS)

    Nascimento, Gabriela S.; McKenzie, Judith A.; Martinez Ruiz, Francisca; Bontognali, Tomaso R. R.; Vasconcelos, Crisogono

    2016-04-01

    A possible syngenetic relationship between carbonate and clay mineral precipitation has been reported for sedimentary rocks deposited in both lacustrine and marine sedimentary environments throughout the geological record. In particular, the mineral dolomite is often found associated with Mg-rich clays, such as stevensite. It is notable that this carbonate/clay association has been recorded in numerous samples taken from modern dolomite precipitating environments; for example, the Coorong lakes, South Australia, coastal sabkhas, Abu Dhabi, UAE and coastal hypersaline lagoons (Lagoa Vermelha and Brejo do Espinho) east of Rio de Janeiro, Brazil. An HRTEM study of samples from these three locations indicates a possible physical/chemical association between the Ca-dolomite and Mg-rich clays, demonstrating a probable co-precipitation. To test this hypothesis, we have conducted a series of biotic and abiotic laboratory experiments. If this syngenesis actually occurs in nature, what, if any, are the biogeochemical processes controlling these precipitation reactions? Our experiments were designed to determine the extent of the biotic versus abiotic component influencing the mineral precipitation and, in the case of a biotic influence, to understand the mechanism through which microorganisms might mediate the formation of clay minerals. The experiments were carried out in the Geomicrobiology Laboratory of ETH Zürich using cultures of living microbes and artificial organic compounds that simulate functional groups present in natural biofilms formed under both aerobic and anaerobic conditions. In addition, pure inorganic experiments were designed to understand possible physico-chemical conditions for diagenetic processes that could induce dissolution of Mg-carbonates and precipitation of Mg-rich clays. Our results show a remarkable biotic influence during the formation of clay minerals. Specifically, extracellular polymeric substances (EPS), released by microbes in their

  4. Mangroves and Sediments - It's not all about mud!

    NASA Astrophysics Data System (ADS)

    Lokier, Stephen; Paul, Andreas; Fiorini, Flavia

    2016-04-01

    Mangals occur both as natural mangals and as plantations along the Arabian Gulf coastline of the United Arab Emirates (UAE). Over recent years there has been a significant campaign to extend the area of the mangrove forests, a project that has resulted in significant dredging activity in tandem with the planting of mangrove samplings. The philosophy for this operation has been in order to increase coastal protection from erosion and as a bid to somewhat offset the UAE's carbon footprint. This project, along with significant coastal infrastructure development, has, regrettably, reduced the number of mangal settings that may be considered as pristine. With this in mind, we have undertaken an extensive sampling campaign in order to fully characterise the sediments associated within the depositional sub-environments of mangal systems. Satellite imagery and ground-based reconnaissance were employed to identify a natural mangal area to the East of Abu Dhabi Island. Within this area, a transect was established across a naturally-occurring mangal channel system. Along-transect sampling stations were selected in order to reflect the range of environmental conditions, both in terms of energy and in relation to the degree of tidal exposure. At each station an array of environmental parameters were monitored. These included, but were not limited to, temperature, salinity, current velocity and turbidity. The surface sediment at each sample station was regularly sampled and returned to the laboratory where it was subjected to a range of analysis including grain size and modal analysis, identification of biota and measurement of total organic content. The results of this study allow us to develop a mangal sediment facies map that accurately establishes the relationships between sediments, depositional setting and environmental parameters. These results can be employed to inform the interpretation of ancient successions deposited under similar conditions. Further, the findings of

  5. Gulf money in Kerala: coping with the problems of plenty.

    PubMed

    Kurian, R; Thakore, D

    businessman in Abu Dhabi since 1965, emigrants will invest in an industry only if they are convinced of the viability of the project, have a say in its management, and if there is reservation of jobs in the enterprise for their competent dependants. Thus far, the money mobilized into industry seems to be only a tiny proportion of the remittances. A major avenue of investment for the emigrants is real estate and, consequently, the prices of land have registered a marked increase. Even the service sector -- taxis and travel agencies -- have received a sizable boost because of the inflow of Gulf money into the state. According to G. Narayana Pillai, culturally and socially the new found wealth will not bring about any substantial social improvement. PMID:12265616

  6. VITAMIN B6 (PYRIDOXINE HYDROCHLORIDE) TOXICOSIS IN FALCONS.

    PubMed

    Samour, Jaime; Perlman, Janine; Kinne, Jörg; Baskar, Vijay; Wernery, Ulrich; Dorrestein, Gerry

    2016-06-01

    This manuscript reports three independent accidental cases of vitamin (Vit) B6 toxicosis in gyrfalcons (Falco rusticolus) and peregrine falcons (Falco peregrinus) and a toxicology study that was conducted to characterize the clinical responses of gyrfalcons and gyrfalcon × peregrine falcons to a range of single intramuscular (IM) and oral (PO) doses of Vit B6. Both lethal and nonlethal doses were determined. Twelve female gyrfalcons died following IM injection of 1 ml of a vitamin B preparation. Within 30 min of injection, the birds passed pistachio green-colored urates and progressed to vomiting, anorexia, cessation of normal activity, ptosis, collapse, and death, occurring 24-36 hr post injections. Three individuals vomited frothy, partially digested blood and had clonic spasms and convulsions. Postmortem and histopathology revealed multifocal severe hepatic necrosis, splenic lymphoid tissue depletion and hemorrhages with arterial necrosis, and acute renal tubular necrosis. Following administration of a different, oral, mineral-vitamin supplement, a total of 21 peregrine falcons in two separate European facilities died suddenly. Histology of the liver showed diffuse congestion and multifocal coagulative necrosis with mild infiltration of heterophils. The particular nutritional supplement, used by both breeders, was analyzed and found to contain 5-9.7% Vit B6. Other randomly selected lots of the product contained 0.007-0.27% Vit B6. According to the product label, Vit B6 should have been present at 0.004%. To confirm the hypothesis that Vit B6 was responsible for the deaths of the falcons in Abu Dhabi, Vit B6 (British Pharmacopoeia [BP] grade) in powder form was diluted in water for injection and administered IM to four groups of falcons. Groups of four gyrfalcon × peregrine hybrid falcons or gyrfalcons (or both) were given a single IM dose of 5, 10, 15, or 20 mg/kg of Vit B6 or received an oral dose of 25, 50, or 75 mg of Vit B6. Only birds in the lowest

  7. Sustainable Electricity and Water for Europe, Middle East and North Africa

    NASA Astrophysics Data System (ADS)

    Müller-Steinhagen, H.; Trieb, F.

    2009-04-01

    Sufficient supply of energy and water are among the key requirements for a sustainable development of nations. Both depend strongly on energy carriers such as oil, gas, coal and uranium which have limited availability and a negative impact on the environment during their use. Within the framework of a series of detailed studies, conventional and renewable energy sources available for electricity production and desalination in Europe, North Africa and the Middle East (EU-MENA) have been analysed. Scenarios have been developed for a sustainable electricity supply based on increased plant and user efficiency, and an accelerated introduction of renewable energy sources. Even if all potential exclusion criteria are applied and only those technologies are considered which will become economically competitive within the next decades, a potential has been identified which exceeds the present electricity demand by orders of magnitude. Solar energy is, in this context, the by far largest resource which will most economically be exploited in centralised solar thermal power plants. In combination with heat storage, these power plants can provide bulk and peak electricity, and can be combined with thermal or reverse osmosis desalination plants. At present, solar thermal power plants with a total capacity exceeding 10 GW are in operation or under construction in Abu Dhabi, Algeria, Egypt, Iran, Israel, Italy, Morocco, Spain and the USA. Ultimately, the increasing electricity demand of EU-MENA can only be secured in conjunction with the required climate and resource protection targets, if all renewable energy sources are exploited where appropriate, and conversion and user efficiency are increased. To utilise the enormous energy resources of the Mediterranean countries, high voltage direct current power lines will have to be built, linking the most abundant and economic resources with the load centres in the North. With electricity losses below 10% over a distance of 3000 km

  8. Black Swan Tropical Cyclones

    NASA Astrophysics Data System (ADS)

    Emanuel, K.; Lin, N.

    2012-12-01

    spectrum of characteristics in our synthetic database, although no large surge has been recorded historically as only one moderate storm passed by the area. Tampa black swans are identified as those that move northward parallel to the west Florida coast with high intensities and resonant with the Florida-shelf edge waves to generate extreme surges up to 10 m in Tampa Bay. The Arabian Sea area has sea surface temperatures warm enough to support the development of severe TCs, but TC development has been limited by low humidity and high wind shear, and only one recorded TC (super cyclonic storm Gonu in 2007) moved close to the Persian Gulf, making landfall in Oman and Iran. Our analysis shows that black swan TCs can originate within the Persian Gulf and make landfall with high intensities in populous places; extreme surges over 9 m for Abu Dubai and Doha and over 7 m for Dubai are possible. Darwin experienced immense devastation from Cyclone Tracy of 1974, but the damage was mainly due to the strong winds (the surge was only about 1.6 m). Our analysis includes extremely intense black swan TCs that make landfall just south of Darwin, generating surges above 10 m; these results may prompt the city to reconsider its TC risk. We are currently analyzing the join probability of the extreme wind and surge of these black swan TCs to more clearly assess their full damage potentials.

  9. A Serious Game for Traffic Accident Investigators

    ERIC Educational Resources Information Center

    Binsubaih, Ahmed; Maddock, Steve; Romano, Daniela

    2006-01-01

    In Dubai, traffic accidents kill one person every 37 hours and injure one person every 3 hours. Novice traffic accident investigators in the Dubai police force are expected to "learn by doing" in this intense environment. Currently, they use no alternative to the real world in order to practice. This paper argues for the use of an alternative…

  10. Ibn Battuta Mall: Edutaining the World?

    ERIC Educational Resources Information Center

    Lee, Chae Ho

    2010-01-01

    Nakheel, a Dubai World Company has created the world's largest themed mall based on the narrative of Ibn Battuta, a 14th century Muslim explorer whose world travels are well documented. The Ibn Battuta Mall is located in the city of Dubai in the United Arab Emirates and utilizes a communication strategy called edutainment: a neologistic…

  11. 76 FR 7236 - Self-Regulatory Organizations; Stock Clearing Corporation of Philadelphia; Boston Stock Exchange...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-09

    ... Release No. 59858 (May 4, 2009), 74 FR 22191 (May 12, 2009) (SR-NASDAQ-2009-039). Prior to the closing of... share, for $21.82 per share (approximately $497 million in aggregate) from Borse Dubai Limited (``Borse Dubai'') (``Stock Repurchase''). Also on December 16, 2010, Nomura International plc (``Nomura'')...

  12. 78 FR 9359 - Order Renewing Order Temporarily Denying Export Privileges and Making That Temporary Denial of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-08

    ... Kosarayanifard, a/k/a Kosarian Fard, P.O. Box 52404, Dubai, United Arab Emirates; Mahmoud Amini, G 22 Dubai... Aviation, Gatewick LLC, Pejman Mahmood Kosarayanifard, Mahmoud Amini, Kerman Aviation, Sirjanco Trading LLC..., 2011 TDO renewal, Gatwick LLC, Mahmoud Amini, and Pejman Mahmood Kasarayanifard (``Kosarian...

  13. 77 FR 22756 - Modification of Temporary Denial Order Making Temporary Denial of Export Privileges Applicable to...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-17

    ... Renewal Order was published in the Federal Register on February 23, 2012. See 77 FR 10719. Mahan Air.... Box 52404, Dubai, United Arab Emirates. Mahmoud Amini, G 22 Dubai Airport Free Zone, P.O. Box 393754... Privileges of Mahan Airways, Zarand Aviation, Gatewick LLC, Pejman Mahmood Kosarayanifard, Mahmoud...

  14. 77 FR 48960 - Order Renewing Order Temporarily Denying Export Privileges

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-15

    ... FR 54198. I. Procedural History On March 17, 2008, Darryl W. Jackson, the then-Assistant Secretary of...; Mahmoud Amini, G 22 Dubai Airport Free Zone, P.O. Box 393754, Dubai, United Arab Emirates; and P.O. Box..., Zarand Aviation, Gatewick LLC, Pejman Mahmood Kosarayanifard, Mahmoud Amini, Kerman Aviation,...

  15. 78 FR 48138 - Notice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-07

    .... 78 FR 9359 (Feb. 8, 2013). The TDO previously had been renewed on September 17, 2008, March 16, 2009..., 2011. 77 FR 64,427 (October 18, 2011). The February 4, 2013 Order laid out further evidence of... Kosarian Fard, P.O. Box 52404, Dubai, United Arab Emirates; Mahmoud Amini, G 22 Dubai Airport Free Zone,...

  16. Role Assessment of GIS Analysis and its Reliability while Ranking Urban Sustainability Using Scenarios Specific to Regional Climate, Community and Culture

    NASA Astrophysics Data System (ADS)

    Salmi, H. Al; Abdulmuttalib, H. M.

    2012-07-01

    Urban Sustainability expresses the level of conservation of a city while living a town or consuming its urban resources, but the measurement of urban sustainability depends on what are considered important indicators of conservation besides the permitted levels of consumption in accordance with adopted criteria. This criterion should have common factors that are shared for all the members tested or cities to be evaluated as in this particular case for Abu Dhabi, but also have specific factors that are related to the geographic place, community and culture, that is the measures of urban sustainability specific to a middle east climate, community and culture where GIS Vector and Raster analysis have a role or add a value in urban sustainability measurements or grading are considered herein. Scenarios were tested using various GIS data types to replicate urban history (ten years period), current status and expected future of Abu Dhabi City setting factors to climate, community needs and culture. The useful Vector or Raster GIS data sets that are related to every scenario where selected and analysed in the sense of how and how much it can benefit the urban sustainability ranking in quantity and quality tests, this besides assessing the suitable data nature, type and format, the important topology rules to be considered, the useful attributes to be added, the relationships which should be maintained between data types of a geo- database, and specify its usage in a specific scenario test, then setting weights to each and every data type representing some elements of a phenomenon related to urban suitability factor. The results of assessing the role of GIS analysis provided data collection specifications such as the measures of accuracy reliable to a certain type of GIS functional analysis used in an urban sustainability ranking scenario tests. This paper reflects the prior results of the research that is conducted to test the multidiscipline evaluation of urban

  17. Investigation of molluscicidal activity of certain Sudanese plants used in folk-medicine. II. Molluscicidal activity of the different morphological organs of Gnidia kraussiana Meisn "abu gotna" family Thymelaeaceae.

    PubMed

    El Kheir, Y M; El Tohami, M S

    1979-01-01

    The molluscicidal activity of Gnidia kraussiana Meisn leaf, stem and root was studied. Each morphological part was extracted with cold and boiling water, different organic solvent and successively with organic solvents of increasing polarity. Throughout it was found that the extracts of the root were the most potent followed by the stem. Boiling water extracts were more potent than cold water extracts, while in case of extraction with different organic solvents, the petroleum ether extracts of the root and stem were the most potent, while for the leaf, the ethanolic extract was the most potent. On successive extraction, the petroleum ether extracts of all organs were the most potent. Saponification of the petroleum ether extract of the root was carried out and the activity of the different fractions were tested. Different extract fractions were obtained from the 80 per cent ethanolic percolate of the root. Some of the physical properties and the phytochemical screening of the successive extractives of the three organs were studied. PMID:529348

  18. 75 FR 62141 - In the Matter of Certain Energy Drink Products; Notice of Issuance of a Corrected General...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-07

    ..., Austria, and Red Bull North America, Inc. of Santa Monica, California (collectively, ``Red Bull''). 74 FR...; Wheeler Trading, Inc. of Miramar, Florida; Avalon International General Trading, LLC of Dubai, United...

  19. Obituary: John Louis Perdrix (1926-2005)

    NASA Astrophysics Data System (ADS)

    Orchiston, W.

    2005-12-01

    On 27 June 2005 the Journal of Astronomical History and Heritage lost its founder and Australia lost one of its leading historians of astronomy when John Louis Perdrix died in Dubai after a brief battle with cancer.

  20. UAE-Dubia: World Oil Report 1991

    SciTech Connect

    Not Available

    1991-08-01

    This paper reports that Dubai is continuing to produce at a capacity level of 400,000+ bpd of crude and condensate. Although Dubai Petroleum Co. (DPC) has announced a reduction in expenditures for 1991, the cut is due to fewer construction projects and is not expected to affect basic drilling and production operations. All of DPC's production is from offshore giants Fateh and Southwest Fateh fields (both with reserves in excess of 500 million bbl), plus smaller Fala and Rashid fields. Dubai Natural Gas Co. also operates several gas wells on one of DPC's platforms. Onshore, Dubai Exploration Onshore Ltd. acquired a concession late in 1989 which calls for three wells to be drilled over three years. One 14,000 ft wildcat was spudded last year and is presumed dry. Also onshore, Arco produces gas and condensate from Margham field. Early last year, Arco purchased BP's 1/3 share in the Margham concession to become the sole interest owner.

  1. Television News in a North-South Perspective. Reports-Documents-Recommendations of the International Broadcast News Workshop (3rd, Jakarta, Indonesia, February 23-25, 1981). Mass Media Manual. Revised Edition.

    ERIC Educational Resources Information Center

    Keune, Reinhard, Ed.

    The papers, speeches, summaries, statements, and reference material in this report deal with issues facing broadcasters throughout the world. Topics addressed by members of the Asia-Pacific Broadcasting Union (ABU) reflect recent trends in the international flow of information, satellite tariff reduction, and training schemes in the ABU region.…

  2. Asymptomatic Bacteriuria in Clinical Urological Practice: Preoperative Control of Bacteriuria and Management of Recurrent UTI.

    PubMed

    Cai, Tommaso; Mazzoli, Sandra; Lanzafame, Paolo; Caciagli, Patrizio; Malossini, Gianni; Nesi, Gabriella; Wagenlehner, Florian M E; Köves, Bela; Pickard, Robert; Grabe, Magnus; Bjerklund Johansen, Truls E; Bartoletti, Riccardo

    2016-01-01

    Asymptomatic bacteriuria (ABU) is a common clinical condition that often leads to unnecessary antimicrobial use. The reduction of antibiotic overuse for ABU is consequently an important issue for antimicrobial stewardship and to reduce the emergence of multidrug resistant strains. There are two issues in everyday urological practice that require special attention: the role of ABU in pre-operative prophylaxis and in women affected by recurrent urinary tract infections (rUTIs). Nowadays, this is the time to think over our practice and change our way of thinking. Here, we aimed to summarize the current literature knowledge in terms of ABU management in patients undergoing urological surgery and in patients with rUTIs. In the last years, the approach to patient with ABU has changed totally. Prior to all surgical procedures that do not enter the urinary tract, ABU is generally not considered as a risk factor, and screening and treatment are not considered necessary. On the other hand, in the case of all procedures entering the urinary tract, ABU should be treated in line with the results of a urine culture obtained before the procedure. In patients affected by rUTIs, ABU can even have a protective role in preventing symptomatic recurrence, particularly when Enterococcus faecalis (E. faecalis) has been isolated. PMID:26742080

  3. Asymptomatic Bacteriuria in Clinical Urological Practice: Preoperative Control of Bacteriuria and Management of Recurrent UTI

    PubMed Central

    Cai, Tommaso; Mazzoli, Sandra; Lanzafame, Paolo; Caciagli, Patrizio; Malossini, Gianni; Nesi, Gabriella; Wagenlehner, Florian M. E.; Köves, Bela; Pickard, Robert; Grabe, Magnus; Bjerklund Johansen, Truls E.; Bartoletti, Riccardo

    2016-01-01

    Asymptomatic bacteriuria (ABU) is a common clinical condition that often leads to unnecessary antimicrobial use. The reduction of antibiotic overuse for ABU is consequently an important issue for antimicrobial stewardship and to reduce the emergence of multidrug resistant strains. There are two issues in everyday urological practice that require special attention: the role of ABU in pre-operative prophylaxis and in women affected by recurrent urinary tract infections (rUTIs). Nowadays, this is the time to think over our practice and change our way of thinking. Here, we aimed to summarize the current literature knowledge in terms of ABU management in patients undergoing urological surgery and in patients with rUTIs. In the last years, the approach to patient with ABU has changed totally. Prior to all surgical procedures that do not enter the urinary tract, ABU is generally not considered as a risk factor, and screening and treatment are not considered necessary. On the other hand, in the case of all procedures entering the urinary tract, ABU should be treated in line with the results of a urine culture obtained before the procedure. In patients affected by rUTIs, ABU can even have a protective role in preventing symptomatic recurrence, particularly when Enterococcus faecalis (E. faecalis) has been isolated. PMID:26742080

  4. Multidisciplinary research of geothermal modeling

    NASA Astrophysics Data System (ADS)

    -Ing. Ulvi Arslan, Univ., ., Dr. _., Prof.; Heiko Huber, Dipl.-Ing.

    2010-05-01

    application on geothermal systems. The history of this multidisciplinary research of geothermal modeling performed by German universities is shown in this paper. Outstanding geothermal research programs of German universities and state aided organizations (BGR, LBEG, GGA) are pointed out. Actual geothermal modeling programs based on the Finite-Element-Method or the Finite-Differences-Method as well as analytical programs are introduced. National and international geothermal projects supported by German universities and state aided organizations are described. Examples of supervised shallow and deep geothermal systems are given. Actually the Technical University Darmstadt is performing a research program supported by a national organization, the Ministry of Economics and Technology (BMWi). Main aim of this research program titled experimental investigation for the verification of a Finite-Element-Multiphase-Model is to analyze the subsoil as a three-phases-model with separated consideration of conduction, convection and advection and their subsequent interaction. The latest developments of numerical projects as well as the actual state of the before mentioned research program are pointed out in the paper. REFERENCES Quick, H., Arslan, U., Meißner, S., Michael, J. 2007. Deep foundations and geothermal energy - a multi-purpose solution, IFHS: 8. International conference on multi-purpose high-rise towers and tall buildings, Abu Dhabi, 2007 Arslan, U. and Huber, H. 2008. Application of geothermal energy. University of Istanbul, Yapistanbul No. 3 / 2008, Turkey, 2008 Quick, Q., Michael, J., Arslan, U., Huber, H. 2010. History of International Geothermal Power Plants and Geothermal Projects in Germany, Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Arslan, U., Huber, H. 2010. Education of Geothermal Sciences in Germany as part of an application orientated research, Proceedings European Civil Engineering Education and Training (EUCEET III) Special

  5. Terrestrial Real-Time Volcano Monitoring

    NASA Astrophysics Data System (ADS)

    Franke, M.

    2013-12-01

    well as, system hardening backup centers. Moreover, Antelope, as typical middleware, allows the scientist and software developer to focus on the specific purpose of their application by providing well defined input/output interfaces. This will spur the development of original and inventive real-time processing schemes in the realm of volcano monitoring. Whatever the underlying data and information engine is, it is only as good as the frontend. Such a frontend has to accommodate the dual purpose of putting data and information in a form that is conducive for scientist and the emergency responder. Current projects in Italy and Abu Dhabi with multiple display centers gave us insights into how difficult it is to develop a multipurpose situation room. Currently, we are experimenting with sophisticated emergency management software that ties strong-motion measurement, structural behavior, and loss estimation to a situation-driven response plan. Although different in content and timeline, this can be adapted for developing volcano eruptions. A final word on remote sensing data, e.g. infrared imaging from an airplane: If the data can be streamed, there is a way to time tag them and include them in the broader real-time process. At least, batch processing should be considered in order to improve the overall information status pre- or post-event.

  6. Drilling the Mediterranean Messinian Evaporites to Answer Key Questions Related to Massive Microbial Dolomite Formation under Hypersaline Alkaline Conditions

    NASA Astrophysics Data System (ADS)

    McKenzie, Judith A.; Bontognali, Tomaso R. R.; Vasconcelos, Crisogono

    2014-05-01

    dolomite precipitation has been studied extensively in rare modern environments, such as the arid coastal sabkhas of Abu Dhabi, UAE and the hypersaline coastal lagoons in Brazil. However, extrapolation of these studies of relatively limited aerial extent to interpret larger-scale, ancient dolomite formation of putative evaporitic origin remains elusive. Such ancient micritic dolomite formations with associated micro-porosity represent extremely valuable hydrocarbon reservoirs. Therefore, a comprehensive investigation of a relatively recent micritic dolomite deposit that has not experienced extensive burial depths and diagenesis is essential to extend our understanding of these important reservoir systems. Based on the limited data obtained during drilling at DSDP Site 374: Messina Abyssal Plain, the dolomitic mudstones of the uppermost Messinian evaporite complex represent an ideal candidate for such an extensive study in a "natural laboratory". Thus, to increase our understanding of the biogeochemical processes associated with ancient massive dolomite formation, we propose to document the scientific objectives to support a major new drilling campaign to study the sub-seafloor Messinian evaporite complex in the deep Mediterranean basins, using greatly enhanced drilling technology that is currently available within the new International Ocean Discovery Program (IODP). Hsü, K., Montadert, L. et al., 1978. Initial Reports of the Deep Sea Drilling Project, Volume 42, Part 1: Washington (U.S. Government Printing Office).

  7. Reconstructing conditions during dolomite formation on a Carnian coastal sabkha/alluvial plain using 87Sr/86Sr isotopes - Travenanzes Formation, northern Italy

    NASA Astrophysics Data System (ADS)

    Rieder, Maximilian; Wegner, Wencke; Horschinegg, Monika; Preto, Nereo; Breda, Anna; Klötzli, Urs; Peckmann, Jörn; Meister, Patrick

    2016-04-01

    The study of large amounts of dolomite that formed in the Triassic Tethyan realm is hampered by late diagenetic or hydrothermal overprint. These dolomites are difficult to link to past environmental and early diagenetic conditions, and their correlation to models for dolomite formation in modern environments is problematic. Preto et al. (2015) suggested, based on evidence from nano-scale structure analysis by transmission electron microscopy and petrographic observations, that dolomites in the Carnian Travenanzes Formation of the Southern Alps (Dolomites area) represent a preserved primary phase. The Travenanzes Formation was deposited in an extended alluvial plain or coastal sabkha environment subject to a semi-arid climate. Beds and nodules of nearly stoichiometric dolomite are embedded in large amounts of clay, which shielded early formed dolomite from diagenetic fluids. This finding of penecontemporaneous dolomite provides an ideal model case for reconstructing past environmental conditions at the time of dolomite precipitation. While Preto et al. (2015) argued that dolomite formation was mediated by extracellular polymeric substances produced by sulphate-reducing bacteria, it remains unclear whether precipitation occurred from evaporating seawater or mainly from brine derived from evaporating continental groundwater. Both cases exist in modern environments of dolomite formation. In the coastal sabkhas of Abu Dhabi and Qatar, dolomite precipitates from concentrated brine derived from seawater, either through seepage and reflux or through evaporative pumping (the sabkha model). In the coastal ephemeral lakes of the Coorong Lagoon system (South Australia) dolomite precipitation occurs from evaporating groundwater. The goal of this study is to distinguish marine from continental influence during formation of Carnian dolomite using 87Sr/86Sr isotope ratios. Sr isotopes could reveal different origins of ionic solutions for dolomite precipitation, which is not

  8. Stable isotope studies and the hydrological regime of sabkhas in southern Kuwait, Arabian Gulf

    NASA Astrophysics Data System (ADS)

    Robinson, Brian W.; Gunatilaka, Ana

    1991-09-01

    evaporated seawater. The δ18 O and δD values of the residual brine increase to about +6‰ and +23‰, respectively, when they reverse and are arrested at the halite precipitation point. Only a minor amount of mixing between these two evaporated waters could take place. Isotopic analyses of sulphur and oxygen in dissolved sulphate of sabkha waters and precipitated mineral sulphate confirm a minor contribution of seawater sulphate ( δ 34S = +19 ± 2‰ ; δ 18O = + 11‰ ) in the tidal areas, but show that the bulk of the marine sabkha water sulphate ( δ 34S = + 14 ± 2‰ ; δ18O + 14 ± 1%.) and coexisting sulphate minerals is dominantly of continental origin. At Al-Khiran, Gulf of Sirte (Libya) and in Abu Dhabi (United Arab Emirates), δ34S values of sabkha sulphate decrease to +14‰ on the landward side: close to the values between + 13 and + 16‰ for continental sabkhas and continental getch (gypsum). This pervasive homogeneous sulphate source may be recycled particulate sulphate distributed by major dust storms. These results have important implications in evaporite sedimentology.

  9. Radioactivity in the Kuwait marine environment--Baseline measurements and review.

    PubMed

    Uddin, S; Aba, A; Fowler, S W; Behbehani, M; Ismaeel, A; Al-Shammari, H; Alboloushi, A; Mietelski, J W; Al-Ghadban, A; Al-Ghunaim, A; Khabbaz, A; Alboloushi, O

    2015-11-30

    The Arabian Gulf region is moving towards a nuclear energy option with the first nuclear power plant now operational in Bushehr, Iran, and others soon to be constructed in Abu Dhabi and Saudi Arabia. Radiological safety is becoming a prime concern in the region. This study compiles available data and presents recent radionuclide data for the northern Gulf waters, considered as pre-nuclear which will be a valuable dataset for future monitoring work in this region. Radionuclide monitoring in the marine environment is a matter of prime concern for Kuwait, and an assessment of the potential impact of radionuclides requires the establishment and regular updating of baseline levels of artificial and natural radionuclides in various environmental compartments. Here we present baseline measurements for (210)Po, (210)Pb, (137)Cs, (90)Sr, and (3)H in Kuwait waters. The seawater concentration of (3)H, (210)Po, (210)Pb, (137)Cs, and (90)Sr vary between 130-146, 0.48-0.68, 0.75-0.89, 1.25-1.38 and 0.57-0.78 mBq L(-1), respectively. The (40)K concentration in seawater varies between 8.9-9.3 Bq L(-1). The concentration of (40)K, total (210)Pb, (137)Cs, (90)Sr, (226)Ra, (228)Ra, (238)U, (235)U, (234)U, (239+240)Pu and (238)Pu were determined in sediments and range, respectively, between 353-445, 23.6-44.3, 1.0-3.1, 4.8-5.29, 17.3-20.5, 15-16.4, 28.7-31.4, 1.26-1.30, 29.7-30.0, 0.045-0.21 and 0.028-0.03 Bq kg(-1) dry weight. Since, radionuclides are concentrated in marine biota, a large number of marine biota samples covering several trophic levels, from microalgae to sharks, were analyzed. The whole fish concentration of (40)K, (226)Ra, (224)Ra, (228)Ra, (137)Cs, (210)Po and (90)Sr range between 230-447, 0.7-7.3, <0.5-6.6, <0.5-15.80, <0.17, 0.88-4.26 and 1.86-5.34 Bq kg(-1) dry weight, respectively. (210)Po was found to be highly concentrated in several marine organisms with the highest (210)Po concentration found in Marica marmorata (193.5-215.6 Bq kg(-1) dry weight). (210)Po in

  10. Bacterial Suppression of RNA Polymerase II-Dependent Host Gene Expression.

    PubMed

    Ambite, Ines; Lutay, Nataliya; Stork, Christoph; Dobrindt, Ulrich; Wullt, Björn; Svanborg, Catharina

    2016-01-01

    Asymptomatic bacteriuria (ABU) is a bacterial carrier state in the urinary tract that resembles commensalism at other mucosal sites. ABU strains often lack the virulence factors that characterize uropathogenic Escherichia coli (E. coli) strains and therefore elicit weak innate immune responses in the urinary tract. In addition, ABU strains are active modifiers of the host environment, which they influence by suppressing RNA polymerase II (Pol II)-dependent host gene expression. In patients inoculated with the ABU strain E. coli 83972, gene expression was markedly reduced after 24 h (>60% of all regulated genes). Specific repressors and activators of Pol II-dependent transcription were modified, and Pol II Serine 2 phosphorylation was significantly inhibited, indicating reduced activity of the polymerase. This active inhibition included disease-associated innate immune response pathways, defined by TLR4, IRF-3 and IRF-7, suggesting that ABU strains persist in human hosts by active suppression of the antibacterial defense. In a search for the mechanism of inhibition, we compared the whole genome sequences of E. coli 83972 and the uropathogenic strain E. coli CFT073. In addition to the known loss of virulence genes, we observed that the ABU strain has acquired several phages and identified the lytic Prophage 3 as a candidate Pol II inhibitor. Intact phage particles were released by ABU during in vitro growth in human urine. To address if Prophage 3 affects Pol II activity, we constructed a Prophage 3 negative deletion mutant in E. coli 83972 and compared the effect on Pol II phosphorylation between the mutant and the E. coli 83972 wild type (WT) strains. No difference was detected, suggesting that the Pol II inhibitor is not encoded by the phage. The review summarizes the evidence that the ABU strain E. coli 83972 modifies host gene expression by inhibition of Pol II phosphorylation, and discusses the ability of ABU strains to actively create an environment that

  11. 75 FR 26846 - Unblocking of Three Specially Designated Nationals Pursuant to Executive Order 13224

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-12

    ...''; a.k.a. ``ABU SAAD''; a.k.a. ``FREEDOM FIGHTER''); DOB 17 Feb 1971; POB Madiun, East Java, Indonesia..., East Java province, Indonesian; nationality Indonesia (individual) . SAMUDRA, Imam (a.k.a....

  12. 78 FR 10000 - Unblocking of Five (5) Individuals as Specially Designated Global Terrorists Pursuant to...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-12

    .... DARWISH, Sulayman Khalid (a.k.a. ``ABU AL-GHADIYA''), Syria; DOB 1976; alt. DOB circa 1974; POB Outside Damascus, Syria; nationality Syria; Passport 3936712 (Syria); alt. Passport 11012 (Syria)...

  13. Acceptance for Beneficial Use Pumping Instrumentation and Control Skid L

    SciTech Connect

    KOCH, M.R.

    1999-11-17

    This is a final Acceptance for Beneficial Use (ABU) for Pumping and Instrumentation Control (PIC) skid ''L''. PIC skid ''L'' is ready for pumping tank U-105. All the testing and documentation has been completed as required on the ABU checklist. This ABU covers only the readiness of the PIC skid ''L''. Other U-farm preparations including dilution tank fabrication, portable exhauster readiness, leak detection, valve pit preparation, and the Operation Control Station readiness are not part of this ABU. PIC skid ''L'' is a new skid fabricated and tested at Site Fabrication Services. The skid controls the jet pump and monitors various instruments associated with the pumping operation. This monitoring includes leak detection along the waste transfer route and flammable gases in the pump pit.

  14. Active mirror alignment control system for the MACE telescope

    NASA Astrophysics Data System (ADS)

    Kulgod, S. V.; Pious, Lizy; Chadda, V. K.; Kaul, S. R.; Yadav, K. K.; Koul, R.

    2002-03-01

    The conceptual design of an active mirror contol system for the MACE telescope, being set up by the Bhabha Atomic Research Centre at Mt. Abu, is described. Preliminary results obtained from recent laboratory trials are also described.

  15. 77 FR 67055 - Application for a Presidential Permit To Operate and Maintain Pipeline Facilities (Line 39) on...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-08

    ... States and Canada. Line 39 was previously owned by Polysar Hydrocarbons Inc. (``Polysar'') and permitted... Dhabi, United Arab Emirates. Line 39 was initially constructed and owned by Polysar Hydrocarbons Inc.... and Polysar changed its name to Novacor Hydrocarbons Inc. (``Novacor''). Novacor then changed its...

  16. Water resources in the next millennium

    NASA Astrophysics Data System (ADS)

    Wood, Warren

    As pressures from an exponentially increasing population and economic expectations rise against a finite water resource, how do we address management? This was the main focus of the Dubai International Conference on Water Resources and Integrated Management in the Third Millennium in Dubai, United Arab Emirates, 2-6 February 2002. The invited forum attracted an eclectic mix of international thinkers from five continents. Presentations and discussions on hydrology policy/property rights, and management strategies focused mainly on problems of water supply, irrigation, and/or ecosystems.

  17. Distinguishing asymptomatic bacteriuria from urinary tract infection in the elderly - the use of urine levels of heparin-binding protein and interleukin-6.

    PubMed

    Kjölvmark, Charlott; Tschernij, Emilia; Öberg, Jonas; Påhlman, Lisa I; Linder, Adam; Åkesson, Per

    2016-06-01

    Asymptomatic bacteriuria (ABU) is highly prevalent among elderly patients. It can be difficult to distinguish ABU from symptomatic urinary tract infection (UTI) in this population, which leads to unnecessary antibiotic treatment. Urinary heparin-binding protein (U-HBP) and urinary interleukin-6 (U-IL-6) have previously been studied as diagnostic markers for UTI. In this study, biomarkers were measured in the urine of 134 nursing home residents. The prevalence of ABU in this population, excluding patients with urinary catheter, was 32.8%. Levels of U-HBP and IL-6 were significantly lower among residents with ABU when compared to 49 patients with verified UTI. When previously defined cut-off limits were used, U-HBP had a high negative predictive value for UTI (93%), however, the specificity for differentiating patients with UTI and ABU was low. Discriminatory values were better for U-IL-6 with a sensitivity of 80% and specificity of 82% for the differentiation between the subgroup of pyelonephritis and ABU. PMID:27039283

  18. "Index for Inclusion": A Framework for School Review in the United Arab Emirates

    ERIC Educational Resources Information Center

    Alborno, Nadera Emran; Gaad, Eman

    2014-01-01

    This study uses the "Index for Inclusion", developed by Booth and Ainscow, as a framework for investigating inclusive provision in the United Arab Emirates (UAE), introduced through the "School for All" initiative. The study, by Nadera Emran Alborno of the American University in Dubai and Eman Gaad of the British University in…

  19. 78 FR 76282 - Secretarial Infrastructure Business Development Mission to the United Arab Emirates, the Kingdom...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-17

    ... network and a nuclear energy industry. Dubai continues to expand its role as the major regional trade hub... industry trade associations and other multiplier groups, and publicity at industry meetings, symposia... networking events offering further opportunities to speak with local business and industry...

  20. 78 FR 76818 - Secretarial Infrastructure Business Development Mission to the United Arab Emirates, the Kingdom...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-19

    ... network and a nuclear energy industry. Dubai continues to expand its role as the major regional trade hub... mail, broadcast fax, notices by industry trade associations and other multiplier groups, and publicity at industry meetings, symposia, conferences, and trade shows. Recruitment will begin immediately...

  1. Implementing Vertical and Horizontal Engineering Students' Integration and Assessment of Consequence Academic Achievement

    ERIC Educational Resources Information Center

    Al-Zubaidy, Sarim; Abdulaziz, Nidhal; Dashtpour, Reza

    2012-01-01

    Recent scholarship references indicate that integration of the student body can result in an enhanced learning experience for students and also greater satisfaction. This paper reports the results of a case study whereby mechanical engineering students studying at a newly established branch campus in Dubai of a British university were exposed to…

  2. Lost Leaders: Women in the Global Academy

    ERIC Educational Resources Information Center

    Morley, Louise

    2014-01-01

    Drawing on data gathered from British Council seminars in Hong Kong, Tokyo and Dubai on "Absent Talent: Women in Research and Academic Leadership" (2012-2013), this paper discusses academic women's experiences and explanations for women's under-representation as knowledge leaders and producers in the global academy.…

  3. "Beneath the Veil There Is a Woman ... like All Other Women": Women and Transformative Learning in the Visual Arts in a Cross-Cultural Context

    ERIC Educational Resources Information Center

    Prince, Geraldine

    2010-01-01

    This paper contextualizes and analyzes a study of an ongoing series of visual arts workshops for women, commissioned from the Centre for Continuing Studies, Edinburgh College of Art, by clients in Dubai. The focus of workshops was on women from the Gulf taking "leadership" courses in Dundee, but they were also vehicles for Gulf women to engage in…

  4. The Role of Leadership in Engaging Parents in United Arab Emirate Schools

    ERIC Educational Resources Information Center

    Al-Taneiji, Shaikah

    2013-01-01

    The aim of this study is to explore the practices used by school leaders (principals, vice principals and social workers) to encourage parental involvement in UAE schools, and the differences in these practices based on their gender, school level and job position. A questionnaire was distributed to teachers in schools in Dubai, Sharjah, Fujairah…

  5. Author Shares a Message of Acceptance with Young Readers: Encouraging Cultural Understanding Author Prue Mason's "Camel Rider"

    ERIC Educational Resources Information Center

    Curriculum Review, 2007

    2007-01-01

    This article presents an interview with Prue Mason about her book "Camel Rider." Prue Mason has written articles for a children's magazine in Dubai, United Arab Emirates, and for "The School Magazine" in Australia. Mason also serves as the science and technology editor for an Australian children's magazine. She discusses what prompted her to write…

  6. Shifting Sands in the United Arab Emirates: Effecting Conceptual Change for Creativity in Early Childhood Teacher Education

    ERIC Educational Resources Information Center

    Baker, Fiona S.

    2013-01-01

    This study examines the effectiveness of a four-stage conceptual change approach to creativity development in teacher education in the Emirate of Dubai, the United Arab Emirates. The participants were 32 student teachers studying at undergraduate level at an all-female university. The study examined participant preconceptions of creativity and how…

  7. Complexity in Quality Assurance in a Rapidly Growing Free Economic Environment: A UAE Case Study

    ERIC Educational Resources Information Center

    Rawazik, Wessen; Carroll, Martin

    2009-01-01

    The Knowledge and Human Development Authority in Dubai has developed an innovative system of quality assurance designed to ensure that the appropriate international standards are being maintained through this cross-border method of delivery. This paper describes and provides the strategic rationale for this new model of "validation" and sets it in…

  8. The Secret of Success for a Branch Campus? It's All in the Marketing

    ERIC Educational Resources Information Center

    Lipka, Sara

    2012-01-01

    When the global financial crisis hit Dubai, many of the Indian expatriate families whose children went to university there sent them back home. But while sons were leaving, daughters were staying. How better to attract the attention of female prospective students than with a young Bollywood actor? Ranbir Kapoor visited University of Wollongong in…

  9. Meeting Diverse Learner Needs with Blended Learning

    ERIC Educational Resources Information Center

    Owen, Hazel

    2010-01-01

    This article describes a 40-week Computer, Research Skills, and Projects (CRSP) blended learning course designed and implemented at Dubai Men's College. The learning employed a design using socio-constructivist principles in the blended approach to cater to the learning preferences of students. (Contains 2 figures and 1 footnote.)

  10. Natural Burkholderia mallei Infection in Dromedary, Bahrain

    PubMed Central

    Wernery, Ulrich; Wernery, Renate; Joseph, Marina; Al-Salloom, Fajer; Johnson, Bobby; Kinne, Joerg; Jose, Shanti; Jose, Sherry; Tappendorf, Britta; Hornstra, Heidie

    2011-01-01

    We confirm a natural infection of dromedaries with glanders. Multilocus variable number tandem repeat analysis of a Burkholderia mallei strain isolated from a diseased dromedary in Bahrain revealed close genetic proximity to strain Dubai 7, which caused an outbreak of glanders in horses in the United Arab Emirates in 2004. PMID:21762586

  11. New Hepatitis E Virus Genotype in Camels, the Middle East

    PubMed Central

    Lau, Susanna K.P.; Teng, Jade L.L.; Tsang, Alan K. L.; Joseph, Marina; Wong, Emily Y.M.; Tang, Ying; Sivakumar, Saritha; Xie, Jun; Bai, Ru; Wernery, Renate; Wernery, Ulrich; Yuen, Kwok-Yung

    2014-01-01

    In a molecular epidemiology study of hepatitis E virus (HEV) in dromedaries in Dubai, United Arab Emirates, HEV was detected in fecal samples from 3 camels. Complete genome sequencing of 2 strains showed >20% overall nucleotide difference to known HEVs. Comparative genomic and phylogenetic analyses revealed a previously unrecognized HEV genotype. PMID:24856611

  12. 77 FR 10719 - Order Renewing Order Temporarily Denying Export Privileges

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... published in the Federal Register on August 31, 2011. See 76 FR 54198. I. Procedural History On March 17... Mahmood Kosarayanifard, a/k/a Kosarian Fard, P.O. Box 52404, Dubai, United Arab Emirates; Mahmoud Amini, G... Aviation, Gatewick LLC, Pejman Mahmood Kosarayanifard, Mahmoud Amini, Kerman Aviation, Sirjanco Trading...

  13. A Futile Search for Values and Pedagogy? A Discursive Analysis of the Marketing Messages of Branch-Campuses in Higher Education Hubs

    ERIC Educational Resources Information Center

    Karram, Grace

    2014-01-01

    Higher education has become a key strategy for the economic development of certain city-states that are positioning themselves as higher education hubs, recruiting both students and foreign providers. This article presents the findings of a research study that examined the online messages of foreign branch-campuses in education hubs (Dubai, Hong…

  14. 77 FR 54946 - Additional Designations of Individuals Pursuant to Executive Order 13581

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-06

    .... ``KAKHA RUSTAVSKIY''), 8 Rukavishnikov Street, Mariinskiy Posad, Chuvash Republic, Russia; DOB 8 Feb 1972... C06-T06, Apartment 603, Dubai 32900, United Arab Emirates; DOB 3 Feb 1966; POB Raditshevo, Russia; nationality Russia (individual) . Dated: June 6, 2012. Adam J. Szubin, Director, Office of Foreign...

  15. Behaviour Support Training for Parents of Children with Autism Spectrum Disorder

    ERIC Educational Resources Information Center

    Gaad, Eman; Thabet, Rawy A.

    2016-01-01

    Al Jalila Foundation (AJF) is a philanthropic organization based in Dubai. The organization sponsored a training programme in 2013 to support parents of children with various disabilities to cope with the behavioural and emotional challenges that are related to the child's disability. The course lasts for 6 weeks and is delivered across the United…

  16. Sources and potential application of waste heat utilization at a gas processing facility

    NASA Astrophysics Data System (ADS)

    Alshehhi, Alyas Ali

    Waste heat recovery (WHR) has the potential to significantly improve the efficiency of oil and gas plants, chemical and other processing facilities, and reduce their environmental impact. In this Thesis a comprehensive energy audit at Abu Dhabi Gas Industries Ltd. (GASCO) ASAB gas processing facilities is undertaken to identify sources of waste heat and evaluate their potential for on-site recovery. Two plants are considered, namely ASAB0 and ASAB1. Waste heat evaluation criteria include waste heat grade (i.e., temperature), rate, accessibility (i.e., proximity) to potential on-site waste heat recovery applications, and potential impact of recovery on installation performance and safety. The operating parameters of key waste heat source producing equipment are compiled, as well as characteristics of the waste heat streams. In addition, potential waste heat recovery applications and strategies are proposed, focusing on utilities, i.e., enhancement of process cooling/heating, electrical/mechanical power generation, and steam production. The sources of waste heat identified at ASAB facilities consist of gas turbine and gas generator exhaust gases, flared gases, excess propane cooling capacity, excess process steam, process gas air-cooler heat dissipation, furnace exhaust gases and steam turbine outlet steam. Of the above waste heat sources, exhaust gases from five gas turbines and one gas generator at ASAB0 plant, as well as from four gas turbines at ASAB1 plant, were found to meet the rate (i.e., > 1 MW), grade (i.e., > 180°C), accessibility (i.e., < 50 m from potential on-site WHR applications) and minimal impact criteria on the performance and safety of existing installations, for potential waste heat recovery. The total amount of waste heat meeting these criteria were estimated at 256 MW and 289 MW at ASAB0 and ASAB1 plants, respectively, both of which are substantial. Of the 289 MW waste generated at ASAB1, approximately 173 MW are recovered by waste heat

  17. PREFACE: International Conference on the Use of X-ray (and related) Techniques in Arts and Cultural Heritage (XTACH 11)

    NASA Astrophysics Data System (ADS)

    Hamdan, Nasser; El-Khatib, Sami

    2012-07-01

    ), Raman measurements, as well as other sample preparation techniques. The training course concluded with a series of presentations of the results by the participants, attended by the NXFL team and experts from the IAEA. This training course was organized as part of the activities of the IAEA technical cooperation RAS1011 Project: Using Ion Beam Analysis and Complementary Nuclear Techniques for Material Characterization in ARASIA State Parties. The course was attended by participants from Iraq, Jordan, Lebanon, Qatar, Syria, the United Arab Emirates and Yemen. We would like to thank the conference sponsors: Tashkeel, Sharjah Museums, and Sharjah Department of Culture and Information (Directorate on Antiquities). We would also like to thank our invited speakers, the international advisory committee, the referees and the participants. It has been a pleasure working with them all. Organizing Committee Nasser Hamdan AUS, NXFL Members Pia Anderson AUS Hussain Al-Awadhi UoS & NXFL Sami El Khatib AUS Attaelmanan Gaffar UoS & NXFL Johannes Giesen AUS Sabah Jasim Directory of Antiquities Sharjah Najeh Jisrawi UoS & NXFL Adil Tamimi AUS International Advisory Committee Zaki Aslan ATHAR, ICCROM, Italy Mark Beech Abu Dhabi Culture & Heritage, UAE Rene Van Grieken University of Antwerp, Belgium Gene Hall Rutgers, The State University of N.J. Peter Jackson Office of the Ruler of Sharjah Andreas Karydas IAEA Laboratories, Seiberdorf, Austria Giacinto Porco The Italian Association of Non-Destructive Testing, Italy Mohammad Roumie (CNRS) Lebanese Atomic Energy, Commission, Lebanon Acknowledgments The organizers gratefuly acknowledge the support received from the College of Arts and Sciences and the Provosts office at the American University of Sharjah. The support of the Physics Section, Division of Physical and Chemical Sciences at the IAEA is greatly appreciated. We would like to give special thanks to Dr Francoise Muelhauser from the IAEA. We would like also to thank the conference

  18. Early Observations on Facial Palsy.

    PubMed

    Pearce, J M S

    2015-01-01

    Before Charles Bell's eponymous account of facial palsy, physicians of the Graeco-Roman era had chronicled the condition. The later neglected accounts of the Persian physicians Abu al-Hasan Ali ibn Sahl Rabban al-Tabari and Abu Bakr Muhammad ibn Zakarīya Rāzi ("Rhazes") and Avicenna in the first millennium are presented here as major descriptive works preceding the later description by Stalpart van der Wiel in the seventeenth century and those of Friedreich and Bell at the end of the eighteenth and the beginning of the nineteenth centuries. PMID:25513852

  19. Effects of airborne dust collected from Kuwait on human erythrocytes

    SciTech Connect

    Siddiqui, S.M.; Khan, S.A.; Ahmad, S.; Beg, M.U.

    1992-01-01

    Air borne dust as deposited on air conditioner's filter was collected from most polluted regions of Kuwait and for comparison also from Dubai. Kuwait dust samples were found to contain high concentrations of Ni, Mn and Pb and a number of organic compounds different from the oil samples collected from the oil pool in the oil fields. Toxicity evaluation against human erythrocytes showed strong hemolytic nature of the dust. Treatment of erythrocytes with the dust exhibited peroxidative damage of the membrane. The dust collected from Dubai was innocuous. The present data suggest that erythrocyte damaging potential of the dust can be used as a marker of toxicity and provide information about the dissipation of toxic factors from airborne dust with time. 15 refs., 2 figs., 3 tabs.

  20. Iran plans huge private sector MTBE plant

    SciTech Connect

    Alperowicz, N.

    1992-01-15

    An export-oriented 1-million m.t./year methyl tert-butyl ether (MTBE) plant is planned as one of Iran`s private sector investment projects. State-owned National Petrochemical Co (NPC; Tehran) and the Dubai-based Iranian businessman Abdul Wahab Galadari have signed a letter of intent allowing Galadari to develop the venture. Colt Engineering (Calgary, AL) is assisting Galadari with costs, planning and technology selection for the estimated $300-million plus venture. An important meeting with NPC is scheduled end of this month, says Galadari, and a financial package should be put together by end of March or April. The facility will most likely be wholly-owned by the Galadari family, roughly 50% by members resident in Iran and the remainder by the Dubai-based concern A.W. Galadari Sons. NPC says it may take a token shareholding in the venture.

  1. A 44-year-old woman with metabolic acidosis, high anion gap, and delayed neurologic deterioration.

    PubMed

    Vakil, Abhay; Upadhyay, Hinesh; Sherani, Khalid; Cervellione, Kelly; Trepeta, Scott; Patel, Mahendra C

    2015-01-01

    A 44-year-old woman was brought to the ED from John F. Kennedy International Airport. The patient was returning with her son from a 3-month visit to Bangladesh. Her journey started with a 4-h flight from Dhaka, Bangladesh to Dubai, United Arab Emirates. She consumed 240 mL of whiskey during the flight. This was followed by a 14-h flight from Dubai to New York. According to the patient's son, she did not consume any alcohol during the second flight. The patient was in her usual state of health with normal mentation throughout her journey. Upon landing, she started complaining of shortness of breath. After disembarking, she was witnessed to have seizure-like activity with involuntary passage of urine, following which she collapsed. The patient was intubated by emergency medical services in the field. PMID:25560868

  2. Serum protein electrophoresis by using high-resolution agarose gel in clinically healthy and Aspergillus species-infected falcons.

    PubMed

    Kummrow, Maya; Silvanose, Christudas; Di Somma, Antonio; Bailey, Thomas A; Vorbrüggen, Susanne

    2012-12-01

    Serum protein electrophoresis has gained importance in avian medicine during the past decade. Interpretation of electrophoretic patterns should be based on species-specific reference intervals and the electrophoresis gel system. In this study, serum protein electrophoresis by using high-resolution agarose gels was performed on blood samples collected from 105 falcons, including peregrine falcons (Falco peregrinus), gyrfalcons (Falco rusticolus), saker falcons (Falco cherrug), red-naped shaheens (Falco pelegrinoides babylonicus), and hybrid falcons, that were submitted to the Dubai Falcon Hospital (Dubai, United Arab Emirates) between 2003 and 2006. Reference values were established in clinically healthy birds and compared with values from falcons infected with Aspergillus species (n = 32). Falcons with confirmed aspergillosis showed significantly lower prealbumin values, which is a novel finding. Prealbumin has been documented in many avian species, but further investigation is required to illuminate the diagnostic significance of this negative acute-phase protein. PMID:23409432

  3. South Korea Builds a Global University, with Help from the U.S.

    ERIC Educational Resources Information Center

    McNeill, David

    2009-01-01

    Built on 1,500 acres of land reclaimed from the Yellow Sea off Incheon, about 35 miles from South Korea's capital, New Songdo City is billed as the largest private real-estate development in history. It is Korea's answer to Shanghai and Dubai. Estimates put the cost of the Songdo project, which is barely five years old, at up to $60-billion. The…

  4. Physicochemical properties and biodegradability of crude oil

    SciTech Connect

    Sugiura, Keiji; Ishihara, Masami; Shimauchi, Toshitsugu; Harayama, Shigeaki

    1997-01-01

    The biodegradation of four different crude oil samples, namely, Arabian light, Dubai, Maya, and Shengli, by acinetobacter sp. T4 and by a microbial consortium called SM8 was examined. SM8 exhibited higher activity than Acinetobacter for the biodegradation of all four crude oil samples. The degree of biodegradation of crude oil components differed according to the crude oil, the saturated fraction being more susceptible to biodegradation than the aromatic fraction in all the crude oil samples. The extent of biodegradation by acinetobacter and SM8 was found to be in the order of Arabian light > Dubai > Maya = Shengli; the crude oil samples with higher APl gravity being more susceptible to biodegradation. Saturated compounds of smaller molecular weight were preferentially degraded by both cultures. Acinetobacter could not degrade polycyclic aromatic compounds in the crude oil samples such as (alkyl)naphthalenes, (alky)phenanthrenes, (alkyl)fluorenes, and (alkyl)dibenzothiophenes. However, this strain was capable of degrading more than 10% of the molecules in the aromatic fraction of Arabian light crude oil. An NMR analysis demonstrated that the alkyl side chain of some aromatic molecules was degraded by this organism. In contrast, SM8 degraded the polycyclic aromatic compounds in the crude oil samples, the extent of degradation being in the order of Maya > Shengli > Arabian light > Dubai. 17 refs., 4 figs., 4 tabs.

  5. Nutrient intake of infants and toddlers in the United Arab Emirates: the Feeding Infants and Toddlers Study.

    PubMed

    Abdulrazzaq, Y M; Nagelkerke, N; Abdulla, S; Belhaj, G

    2016-05-01

    This descriptive study evaluated the nutrient adequacy of the diet of infants (aged 6-11.9 months) and toddlers (aged 12-24 months) in the United Arab Emirates. A random sample of 1000 infants and toddlers was recruited from 2 cities (Al Ain and Dubai) from March 2011 to February 2012 and their usual nutrient intake was determined using 24-hour recall. In all, 54.2% of infants and 25.2% of toddlers were breastfeeding. Mean energy intake of infant girls in Al Ain and Dubai was 747 (SD 189) kcal and 773 (SD 215) kcal respectively and 810.5 (SD 232.2) kcal and 821.9 (SD 262) kcal for boys. In toddlers, mean energy intake for girls in Al Ain and Dubai was 1032.8 (SD 252) kcal and 1013 (SD 339.1) kcal respectively and 1057.2 (SD 201.8) kcal and 1030.3 (SD 341.7) kcal for boys. Iron intake was low in both groups. Mean body mass index and body weight and height were similar to World Health Organization figures but significant numbers of infants and toddlers of both sexes were over- or underweight. Although mean energy and macronutrient intakes were comparable to the RDA, significant numbers were over- or underfed. PMID:27553395

  6. Torture and the War on Terror

    ERIC Educational Resources Information Center

    O'Brien, Ed

    2004-01-01

    In this article, the author examines another dimension of human rights--the problem of torture. He looks at U.S. commitments to international conventions prohibiting torture in light of the abuses at Abu Ghraib prison in Iraq. He shows how a position adopted by the Bush administration that these international conventions did not apply to the war…

  7. Television for Very Young Children and Their Parents.

    ERIC Educational Resources Information Center

    1976

    This summary of the reports and papers presented at a seminar organized by the ABU in collaboration with the Prix Jeunesse Foundation and with the assistance of UNESCO includes reports on television programming for very young children in Europe, Japan, Australia, Bangladesh, Hong Kong, Indonesia, Iran, Korea, New Zealand, Pakistan, Singapore,…

  8. A new model of slab tear of the subducting Philippine Sea Plate associated with Kyushu-Palau Ridge subduction

    NASA Astrophysics Data System (ADS)

    Cao, Lingmin; Wang, Zhi; Wu, Shiguo; Gao, Xiang

    2014-12-01

    We suggest that the Kyushu-Palau Ridge (KPR) plays a key role in the subduction process of the Philippine Sea Plate (PSP) and the origin of the Abu volcano in the southwestern Japan. The 3-D P-wave velocity structure was imaged to approximately 300 km beneath the Abu volcano using a large number of P-wave arrivals from local earthquakes and teleseismic events. Our results indicate that a high-velocity anomaly beneath the Abu volcano is associated with the subducting PSP; however, the anomaly is not continuous, being interrupted apparently by a low-velocity anomaly zone extending northwestwards from 80 km to great depth. The PSP appears to be tearing and then forms a 'slab window' corresponding to KPR subduction at ca. 2 Ma. The low-velocity anomaly may indicate hot upper mantle material rising through the slab window and causing partial melting both of the lower crust of the overriding plate and the oceanic crust of the subducted KPR. A new model is presented for slab tearing of the PSP associated with the subduction of the buoyant, wide and thick KPR and directional change in the motion of the plate, contributing to better understanding of the Abu volcanism.

  9. 78 FR 79078 - Designation of 2 individuals Pursuant to Executive Order 13224 of September 23, 2001, “Blocking...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ... AYED''; a.k.a. ``ABU AYID''), Yemen; DOB 04 Aug 1972; POB al-Zahir, al-Bayda', Yemen; Passport 03902409 (Yemen) issued 13 Jun 2010 expires 13 Jun 2016; alt. Passport 01772281 (Yemen); Personal ID Card 1987853 (Yemen) (individual) . 2. AL-NU'AYMI, 'Abd al-Rahman bin 'Umayr (a.k.a. AL NAIMEH, Abdelrahman Imer...

  10. 75 FR 54697 - Unblocking of Thirteen Specially Designated Nationals Pursuant to Executive Order 13224

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-08

    ... HONEY CENTER), Sanaa, Yemen . AL-KADR, Ahmad Sa'id (a.k.a. AL-KANADI, Abu Abd Al-Rahman); DOB 01 Mar..., Al- Hasabah, Sanaa, Yemen; By the Shrine Next to the Gas Station, Jamal Street, Ta'iz, Yemen; Al-'Arudh Square, Khur Maksar, Aden, Yemen; Al- Nasr Street, Doha, Qatar . AWEYS, Dahir Ubeidullahi,...

  11. The abundance and activation of mTORC1 regulators in skeletal muscle of neonatal pigs are modulated by insulin, amino acids, and age

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Previously we demonstrated that the insulin (INS) and amino acid (AA) -induced activation of the mammalian target of rapamycin complex 1 (mTORC1) is developmentally regulated in neonatal pigs. This study aimed to determine the effects of the post-prandial rise in INS and AA on the activation and abu...

  12. Abundances of apple maggot, Rhagoletis pomonella, across different areas in central Washington, with special reference to black-fruited hawthorns

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The apple maggot fly, Rhagoletis pomonella (Walsh), has infested native black-fruited hawthorn (mostly Crataegus douglasii Lindl.) in central Washington since at least 2003, but little is known about the fly’s ecology in hawthorns there. The main objective here was to determine adult and larval abu...

  13. Unsupervised linear unmixing of hyperspectral image for crop yield estimation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Multispectral and hyperspectral imagery are often used for estimating crop yield. This paper describes an unsupervised unmixing scheme of hyperspectral images to estimate crop yield. From the hyperspectral images, the endmembers and their abundance maps are computed by unsupervised unmixing. The abu...

  14. Case Studies for Management Development in Bangladesh. Third Book. Prepared for the World Bank/Bangladesh Management Education and Training Project.

    ERIC Educational Resources Information Center

    McLean, Gary N.

    This document contains 10 case studies of management situations in Bangladesh, which are intended to foster classroom discussion and thereby advance management development in that country. Two to four discussion questions follow each case study. Three case studies on the subject of pay and compensation were prepared by Abu Hossain Siddique; the…

  15. Near-infrared observations of blue transient ASASSN-14jv

    NASA Astrophysics Data System (ADS)

    Joshi, Vishal; Srivastava, Mudit; Ashok, N. M.; Banerjee, D. P. K.; V. Venkataraman, V.

    2014-11-01

    We report the near-infrared observations of the bright transient ASASSN-14jv obtained on 2014 Nov. 10.83 UT with the 1.2-m telescope at Mt.Abu Infrared Observatory using the Near-Infrared Imager/Spectrometer with a 256x256 NICMOS3 array.

  16. "The Beauty of America": Nationalism, Education, and the War on Terror

    ERIC Educational Resources Information Center

    Abu El-Haj, Thea Renda

    2010-01-01

    In this article, Thea Renda Abu El-Haj draws on qualitative research conducted with Palestinian American high school students to explore school as a key site for nation building. By focusing on their teachers' talk and practice, she examines how U.S. nationalism and national identities are produced through everyday racialized and gendered…

  17. Outrages Against Personal Dignity: Rationalizing Abuse and Torture in the War on Terror

    ERIC Educational Resources Information Center

    Gregory Hooks; Clayton Mosher

    2005-01-01

    The outrage over revelations of torture and abuse at Abu Ghraib prison has faded from public discourse, but a number of questions remain unanswered. This paper criticizes official rationalizations offered for the abuse. We make the case that these abuses are systemic, resulting from dehumanization of the enemy and the long reliance on and…

  18. Enhancing English Language Planning Strategy Using a WebQuest Model

    ERIC Educational Resources Information Center

    Al-Sayed, Rania Kamal Muhammad; Abdel-Haq, Eman Muhammad; El-Deeb, Mervat Abou-Bakr; Ali, Mahsoub Abdel-Sadeq

    2016-01-01

    The present study aimed at developing English language planning strategy of second year distinguished governmental language preparatory school pupils using the a WebQuest model. Fifty participants from second year at Hassan Abu-Bakr Distinguished Governmental Language School at Al-Qanater Al-Khairia (Qalubia Governorate) were randomly assigned…

  19. Fostering the Memoir Writing Skills as a Creative Non-Fiction Genre Using a WebQuest Model

    ERIC Educational Resources Information Center

    Al-Sayed, Rania Kamal Muhammad; Abdel-Haq, Eman Muhammad; El-Deeb, Mervat Abou-Bakr; Ali, Mahsoub Abdel-Sadeq

    2016-01-01

    The present study aimed at developing the memoir writing skills as a creative non-fiction genre of second year distinguished governmental language preparatory school pupils using the a WebQuest model. Fifty participants from second year at Hassan Abu-Bakr Distinguished Governmental Language School at Al-Qanater Al-Khairia(Qalubia Governorate) were…

  20. Acceptance for Beneficial Use Pumping Instrumentation and Control Skid M

    SciTech Connect

    KOCH, M.R.

    2000-01-24

    This document is a Final Acceptance for Beneficial Use (ABU) for the readiness of Pumping Instrumentation and Control (PIC) skid ''M''. All the testing and documentation for PIC skid ''M'' is completed and the skid is ready for use in the field for pumping of tank U-102.

  1. Temperature and air velocity effects on ethanol emission from corn silage

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Volatile organic compounds (VOCs) from agricultural sources are believed to be an important contributor to tropospheric ozone in some areas. Recent research suggests that silage is a major source of these VOCs, but only limited data exist on VOC emission from silage. Ethanol is normally the most abu...

  2. Finnish Secondary School Students' Interreligious Sensitivity

    ERIC Educational Resources Information Center

    Holm, Kristiina; Nokelainen, Petri; Tirri, Kirsi

    2014-01-01

    The aim of this study was to assess the self-evaluations of Finnish secondary school students' (N?=?549) interreligious sensitivity. The data were collected from 12-16-year-old young people with a 15-item Interreligious Sensitivity Scale Questionnaire (IRRSSQ). The IRRSSQ is based on Abu-Nimer's Developmental Model of Interreligious…

  3. Radioactivity and distribution of U and Th in some granitic masses, Wadi El-Saqia Area, Central Eastern Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Abdel-Monem, A. A.; Hussein, H. A.; Abdel-Kader, Z. M.; Abu Zied, H. T.; Ammar, S. E.

    1996-05-01

    Radioactivity measurements and U and Th content determinations were carried out on 3 small granitic plutons, Gabal Abu Aqarib, Gabal El-Himeiyer and Gabal Um Zarabit, in the Central Eastern Desert. The Abu Aqarib and Um Zarabit alkali feldspar granites are elenogated bodies intruded into the Dokhan Volcanics, whereas El-Himeiyir is intruded into an ophiolitic melange section. Compared to the average content of U and Th of world granites, El-Himeiyir alkali feldspar granites show normal content of both U and Th. On the other hand, Abu Aqarib alkali feldspar granite shows some enrichments in both U and Th, whereas Um Zarabit granite shows enrichments in U contents only. The two discovered anomalous radioactive sites show 154 ppm U, and 256 ppm Th contents for Gabal Abu Aqarib site, and 24 ppm U, and 107 ppm Th contents for El-Himeiyir one. The two sites are associated with NE-trending shear zones and exhibit hydrothermal alteration features such a hematitization and silicification. The high radioactivity is ascribed to unusual accumulations of zircon and/or apatite; however, some of the enriched U may be of epigenetic origin.

  4. Moral Education, Habituation, and Divine Assistance in View of Ghazali

    ERIC Educational Resources Information Center

    Attaran, Mohammad

    2015-01-01

    This article describes the concept of moral education and its foundation according to Abu Hamid Ghazali as one of the most influential scholars in the world of Islam. Ghazali equates moral education with habituation. Causality holds a prominent place in philosophical foundations of his theory of moral education. Even though Ghazali recommends…

  5. 77 FR 5291 - The Designation of Mevlut Kar, Also Known as Mivlut Kar, Also Known as Mavlut Kar, Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... Designation of Mevlut Kar, Also Known as Mivlut Kar, Also Known as Mavlut Kar, Also Known as Mawlud Kar, Also Known as Meluvet Kar, Also Known as Mevlut Zikara, Also Known as Abdullah the Turk, Also Known as Mulfit Kar Iiyas Al Ubayda, Also Known as Abu Obeidah Al Turki, as a Specially Designated Global...

  6. 76 FR 62494 - Designation of Ibrahim `Awwad Ibrahim `Ali al-Badri, Also Known as Dr. Ibrahim `Awwad Ibrahim...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-07

    ... Designation of Ibrahim `Awwad Ibrahim `Ali al-Badri, Also Known as Dr. Ibrahim `Awwad Ibrahim `Ali al-Badri, Also Known as Ibrahim `Awad Ibrahim al-Badri al-Samarrai, Also Known as Ibrahim Awwad Ibrahim al-Samarra'I, Also Known as Dr. Ibrahim Awwad Ibrahim al-Samarra'I, Also Known as Abu Du'a, Also Known as...

  7. 77 FR 38126 - The Designation of Khalid al-Barnawi, Also Known as Khalid Barnawi, Also Known as Khaled al...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-26

    ... Designation of Khalid al-Barnawi, Also Known as Khalid Barnawi, Also Known as Khaled al-Barnawi, Also Known as Khaled el- Barnaoui, Also Known as Mohammed Usman, Also Known as Abu Hafsat, as a Specially Designated Global Terrorist Pursuant to Section 1(b) of Executive Order 13224, as Amended Acting under the...

  8. Unit Circles and Inverse Trigonometric Functions

    ERIC Educational Resources Information Center

    Barrera, Azael

    2014-01-01

    Historical accounts of trigonometry refer to the works of many Indian and Arab astronomers on the origin of the trigonometric functions as we know them now, in particular Abu al-Wafa (ca. 980 CE), who determined and named all known trigonometric functions from segments constructed on a regular circle and later on a unit circle (Moussa 2011;…

  9. Asymtomatic Bacteriuria as a Model to Study the Coevolution of Hosts and Bacteria

    PubMed Central

    Dobrindt, Ulrich; Wullt, Björn; Svanborg, Catharina

    2016-01-01

    During asymptomatic bacteriuria (ABU), bacteria colonize the urinary tract for extended periods of time without causing symptoms of urinary tract infection. Previous studies indicate that many Escherichia coli (E. coli) strains that cause ABU have evolved from uropathogenic E. coli (UPEC) by reductive evolution and loss of the ability to express functional virulence factors. For instance, the prototype ABU strain 83972 has a smaller genome than UPEC strains with deletions or point mutations in several virulence genes. To understand the mechanisms of bacterial adaptation and to find out whether the bacteria adapt in a host-specific manner, we compared the complete genome sequences of consecutive reisolates of ABU strain 83972 from different inoculated individuals and compared them with the genome of the parent strain. Reisolates from different hosts exhibited individual patterns of genomic alterations. Non-synonymous SNPs predominantly occurred in coding regions and often affected the amino acid sequence of proteins with global or pleiotropic regulatory function. These gene products are involved in different bacterial stress protection strategies, and metabolic and signaling pathways. Our data indicate that adaptation of E. coli 83972 to prolonged growth in the urinary tract involves responses to specific growth conditions and stresses present in the individual hosts. Accordingly, modulation of gene expression required for survival and growth under stress conditions seems to be most critical for long-term growth of E. coli 83972 in the urinary tract. PMID:26891332

  10. Proceedings of the Annual Linguistics Conference (2nd, Irbid, Jordan, April 1983).

    ERIC Educational Resources Information Center

    Owens, Jonathan, Comp.; Abu-Salim, Issam, Comp.

    A collection of conference papers includes: "More on Arabic Vowel Harmony: A Metrical-Suprasegmental Approach" (Issam Abu-Salim); "The Phonological Assimilation of Borrowing" (Saleh Suleiman); "On Getting a Head: A Problem in Dependency Grammar" (Jonathan Owens); "Negation in Jordanian Arabic: A Developmental Study" (Oglah Smadi); "Problems in…

  11. Off the Radar: The Problem of Distance-Learning in "Integrated" Degrees

    ERIC Educational Resources Information Center

    Mir, Monir Zaman; Rahaman, Abu Shiraz

    2007-01-01

    Just about everyone suspects that the rush to enrol distance-learning students in on-campus degrees tends to disadvantage them. Monir Mir and Abu Shiraz Rahaman set out to test this intuition, using accounting students as their guinea-pigs. (Contains 6 figures and 5 tables.)

  12. The conformational properties of α,β-dehydroamino acids with a C-terminal ester group.

    PubMed

    Siodłak, Dawid; Grondys, Justyna; Broda, Małgorzata A

    2011-10-01

    α,β-Dehydroamino acid esters occur in nature. To investigate their conformational properties, a systematic theoretical analysis was performed on the model molecules Ac-ΔXaa-OMe [ΔXaa = ΔAla, (E)-ΔAbu, (Z)-ΔAbu, ΔVal] at the B3LYP/6-311+ + G(d,p) level in the gas phase as well as in chloroform and water solutions with the self-consistent reaction field-polarisable continuum model method. The Fourier transform IR spectra in CCl(4) and CHCl(3) have been analysed as well as the analogous solid state conformations drawn from The Cambridge Structural Database. The ΔAla residue has a considerable tendency to adopt planar conformations C5 (ϕ, ψ ≈ - 180°, 180°) and β2 (ϕ, ψ ≈ - 180°, 0°), regardless of the environment. The ΔVal residue prefers the conformation β2 (ϕ, ψ ≈ - 120°, 0°) in a low polar environment, but the conformations α (ϕ, ψ ≈ - 55°, 35°) and β (ϕ, ψ ≈ - 55°, 145°) when the polarity increases. The ΔAbu residues reveal intermediate properties, but their conformational dispositions depend on configuration of the side chain of residue: (E)-ΔAbu is similar to ΔAla, whereas (Z)-ΔAbu to ΔVal. Results indicate that the low-energy conformation β2 is the characteristic feature of dehydroamino acid esters. The studied molecules constitute conformational patterns for dehydroamino acid esters with various side chain substituents in either or both Z and E positions. PMID:21805538

  13. The DUBAISAT-2/DEIMOS-2 constellation: public-private cooperation between Emirates and Spain

    NASA Astrophysics Data System (ADS)

    Pirondini, Fabrizio; Al Marri, Salem

    2014-10-01

    The Emirates Institution for Advanced Science and Technology (EIAST) was established by the Dubai Government in 2006 with the goal of promoting a culture of advanced scientific research and technology innovation in Dubai and the UAE, and enhancing technology innovation and scientific skills among UAE nationals. EIAST launched in November 2013 the DubaiSat-2, its second Earth Observation satellite, and the first to provide VHR multispectral imagery. The satellite has successfully completed its in-orbit commissioning and it is now fully operational. ELECNOR DEIMOS is a private Spanish company, part of the Elecnor industrial group, which owns and operates DEIMOS-1, the first Spanish Earth Observation satellite, launched in 2009. ELECNOR DEIMOS launched in June 2014 its second satellite, DEIMOS-2, a VHR, agile satellite capable of providing 4-bands multispectral imagery. The whole end-to-end DEIMOS- 2 system has been designed to provide a cost-effective and highly responsive service to cope with the increasing need of fast access to VHR imagery. The two satellites, with a mass of 300 kg each, were developed in cooperation with Satrec-I (South Korea), and are based on the SpaceEye-1 platform. The two satellites have an identical payload, and produce 75- cm resolution pan-sharpened imagery across a 12-km swath. Together, they have a combined collection capacity of more than 300,000 sqkm per day. EIAST and ELECNOR DEIMOS have set up a unique, trans-national public-private partnership to operate the two satellites as a constellation, jointly commercialize the imagery of both satellites, and interchange technical and operational information to increase the efficiency of both systems. The operations of the constellation are based on four ground stations: Al Khawaneej (Dubai), Puertollano (Spain), Kiruna (Sweden) and Inuvik (Canada), which assure at least a contact per orbit with each satellite. The constellation functionalities of the ground segment were developed by EIAST

  14. Checklists of Parasites of Farm Fishes of Babylon Province, Iraq.

    PubMed

    Mhaisen, Furhan T; Al-Rubaie, Abdul-Razzak L

    2016-01-01

    Literature reviews of all references concerning the parasitic fauna of fishes in fish farms of Babylon province, middle of Iraq, showed that a total of 92 valid parasite species are so far known from the common carp (Cyprinus carpio), the grass carp (Ctenopharyngodon idella), and the silver carp (Hypophthalmichthys molitrix) as well as from three freshwater fish species (Carassius auratus, Liza abu, and Heteropneustes fossilis) which were found in some fish farms of the same province. The parasitic fauna included one mastigophoran, three apicomplexans, 13 ciliophorans, five myxozoans, five trematodes, 45 monogeneans, five cestodes, three nematodes, two acanthocephalans, nine arthropods, and one mollusc. The common carp was found to harbour 81 species of parasites, the grass carp 30 species, the silver carp 28 species, L. abu 13 species, C. auratus one species, and H. fossilis one species. A host-parasite list for each fish species was also provided. PMID:27559480

  15. Ligophorus spp. (Monogenoidea: Dactylogyridae) parasitizing mullets (Teleostei: Mugiliformes: Mugilidae) occurring in the fresh and brackish waters of the Shatt Al-Arab River and Estuary in southern Iraq, with the description of Ligophorus sagmarius sp. n. from the greenback mullet Chelon subviridis (Valenciennes).

    PubMed

    Kritsky, Delane C; Khamees, Najim R; Ali, Atheer H

    2013-12-01

    The gills of three of five species of mullets (Teleostei: Mugiliformes: Mugilidae) collected from the brackish and fresh waters of southern Iraq were infected with species of Ligophorus (Monogenoidea: Dactylogyridae) as follows: greenback mullet Chelon subviridis (Valenciennes) infected with Ligophorus lebedevi Dmitrieva, Gerasev, Gibson, Pronkina and Galli, 2012, Ligophorus bantingensis Soo and Lim, 2012, Ligophorus sagmarius n. sp., and Ligophorus fluviatilis (Bychowsky, 1949) Dmitrieva, Gerasev, Gibson, Pronkina, and Galli, 2012; Klunzinger’s mullet Liza klunzingeri (Day) with L. bantingensis, L. fluviatilis, and an apparently undescribed species of Ligophorus; and abu mullet Liza abu (Heckel) with L. bantingensis and L. fluviatilis. The keeled mullet Liza carinata (Valenciennes) and Speigler’s mullet Valamugil speigleri (Bleeker) were uninfected. L. sagmarius n. sp. is described, and L. lebedevi and L. bantingensis are redescribed. Available specimens of L. fluviatilis and the undescribed species of Ligophorus from Klunzinger’s mullet were insufficient for description. PMID:24022128

  16. Lunar occultations in the infrared: Evolution from single element detectors to sub-arrays

    NASA Astrophysics Data System (ADS)

    Chandrasekhar, T.

    Lunar Occultations is an elegant high angular resolution technique capable of reaching one dimensional resolutions of a few milliarc seconds on a large number of sources in the celestial path of the moon. At PRL we have been pursuing this method for nearly two decades at the 1.2m telescope of Mt Abu Observatory mainly in the near IR K band with a few excursions into the L band. Many of the resolved sources are late type M Giants, AGB variables (SRVs and Miras) and carbon stars. Apart from effective temperatures, the presence, extent and sometimes the structure of the circumstellar material could be inferred from high S/N occultation light curves. The IR instrumentation for observing lunar occultations has progressed from single element InSb based fast photometers to using area of interest sub-arrays of the NICMOS camera at Mt Abu. Details of sub-array mode and some recent science highlights are presented.

  17. The Occurrence and Characteristics of Low Latitude Ultra-Low Frequency Waves in Egypt

    NASA Astrophysics Data System (ADS)

    Arafa-Hamed, T.; Ghamry, E.; Lethy, A.

    2015-12-01

    We have examined the ULF wave activities in the Egyptian observatories (Misallat and Abu Simbel) using high resolution geomagnetic field data. The fluctuations detected at Misallat (L = 1.23) and Abu Simbel (L = 1.07) ground magnetometers data during last three years have been investigated in the range of 1-100 mHz (Pi2, Pc3, Pc4 and Pc5 micropulsations). A typical Pc3-4 pulsation contains a field line resonance and an upstream wave contribution. We focused on night-time events (1800-0600 local time) which show all the characteristics of Pi2 pulsations. This study suggests that low-latitude Pi2 pulsations detected at the two Egyptian observatories caused by plasmaspheric cavity mode resonance.

  18. Acceptance for Beneficial Use Pumping Instrumentation and Control Skid N

    SciTech Connect

    KOCH, M.R.

    2000-03-13

    This is a final Acceptance for Beneficial Use (ABU) for Pumping and Instrumentation Control (PIC) skid ''N''. PIC skid ''N'' is ready for pumping tank U-109. All the testing and documentation has been completed as required on the AE3U checklist. This AE3U covers only the readiness of the PIC skid ''N''. Other U-farm preparations including dilution tank fabrication, portable exhauster readiness, leak detection, valve pit preparation, and the Operation Control Station readiness are not part of this ABU. PIC skid ''N'' is a new skid fabricated and tested at Site Fabrication Services. The skid controls the jet pump and monitors various instruments associated with the pumping operation. This monitoring includes leak detection along the waste transfer route and flammable gases in the pump pit. This Acceptance for Beneficial Use documents that Pumping Instrumentation and Control (PIC) skid ''N'' is ready for field use. This document does not cover the field installation or operational testing.

  19. Checklists of Parasites of Farm Fishes of Babylon Province, Iraq

    PubMed Central

    Al-Rubaie, Abdul-Razzak L.

    2016-01-01

    Literature reviews of all references concerning the parasitic fauna of fishes in fish farms of Babylon province, middle of Iraq, showed that a total of 92 valid parasite species are so far known from the common carp (Cyprinus carpio), the grass carp (Ctenopharyngodon idella), and the silver carp (Hypophthalmichthys molitrix) as well as from three freshwater fish species (Carassius auratus, Liza abu, and Heteropneustes fossilis) which were found in some fish farms of the same province. The parasitic fauna included one mastigophoran, three apicomplexans, 13 ciliophorans, five myxozoans, five trematodes, 45 monogeneans, five cestodes, three nematodes, two acanthocephalans, nine arthropods, and one mollusc. The common carp was found to harbour 81 species of parasites, the grass carp 30 species, the silver carp 28 species, L. abu 13 species, C. auratus one species, and H. fossilis one species. A host-parasite list for each fish species was also provided. PMID:27559480

  20. Miocene platform-margin reefs, Gulf of Suez, Egypt

    SciTech Connect

    James, N.P.; Rosen, B.; Coniglio, M.

    1988-02-01

    Jebel Abu Shaar is a completely dolomitized carbonate platform atop a crystalline basement horst on the western side of the Gulf of Suez. Margins of the platform, where not removed by synsedimentary faulting, are formed by well-developed coral reefs. The massive reef carbonates consistently illustrate two stages of growth: a basal paucispecific unit of branching coral bafflestone, mostly Stylophora and a thicker upper unit of diverse coral framestone, dominated by faviids. A deep-water, slope-parallel biostrome of ahermatypic corals, dominated by Dendrophyllia and containing numerous Balanophyllia and Madracis, is present 10 km north of Abu Shaar. Corals are well cemented by numerous rinds of marine cement which is overlain by geopetal internal sediment containing planktonic foraminifers and pteropods.

  1. Dynamically-expressed prion-like proteins form a cuticle in the pharynx of Caenorhabditis elegans

    PubMed Central

    George-Raizen, Julia B.; Shockley, Keith R.; Trojanowski, Nicholas F.; Lamb, Annesia L.; Raizen, David M.

    2014-01-01

    ABSTRACT In molting animals, a cuticular extracellular matrix forms the first barrier to infection and other environmental insults. In the nematode Caenorhabditis elegans there are two types of cuticle: a well-studied collagenous cuticle lines the body, and a poorly-understood chitinous cuticle lines the pharynx. In the posterior end of the pharynx is the grinder, a tooth-like cuticular specialization that crushes food prior to transport to the intestine for digestion. We here show that the grinder increases in size only during the molt. To gain molecular insight into the structure of the grinder and pharyngeal cuticle, we performed a microarray analysis to identify mRNAs increased during the molt. We found strong transcriptional induction during the molt of 12 of 15 previously identified abu genes encoding Prion-like (P) glutamine (Q) and asparagine (N) rich PQN proteins, as well as 15 additional genes encoding closely related PQN proteins. abu/pqn genes, which we name the abu/pqn paralog group (APPG) genes, were expressed in pharyngeal cells and the proteins encoded by two APPG genes we tested localized to the pharyngeal cuticle. Deleting the APPG gene abu-14 caused abnormal pharyngeal cuticular structures and knocking down other APPG genes resulted in abnormal cuticular function. We propose that APPG proteins promote the assembly and function of a unique cuticular structure. The strong developmental regulation of the APPG genes raises the possibility that such genes would be identified in transcriptional profiling experiments in which the animals' developmental stage is not precisely staged. PMID:25361578

  2. Tycho Brahe, Abū Macshar, and the comet beyond Venus (ninth century A.D.)

    NASA Astrophysics Data System (ADS)

    Neuhäuser, Ralph; Kunitzsch, Paul; Mugrauer, Markus; Luge, Daniela; van Gent, Rob

    2016-05-01

    From his observations of the A.D. 1572 super-nova and the A.D. 1577 comet, Tycho Brahe concluded that such transient celestial objects are outside the Earth's atmosphere, and he quoted the 9th century A.D. Persian astrologer and astronomer Abu Mashar: Dixit Albumasar, Cometa supra Venerem visus fuit, i.e. that he had reported much earlier that comets were seen beyond Venus. However, even from a more detailed Latin translation, the observations and logic behind Abu Mashar's conclusion were not understandable. We present here the original Arabic text (MS Ankara, Saib 199) together with our translation and interpretation: Abu Mashar reported that he had observed Venus in (or projected onto) the tail of a comet and concluded that the comet was behind Venus, because he had observed the extinction of Venus due to the cometary tail to be negligible (light of Venus was unimpaired). He then concluded that the comet would be located behind Venus. He also mentioned that others had observed Jupiter and Saturn in cometary tails, so that those comets would even be located beyond those two outer planets - in the sphere of the stars. The dates of the observed close conjunctions were not mentioned; using known orbital elements for a few comets, we found a few close conjunctions between comets and planets from A.D. 770 to 868, but we cannot be sure regarding which conjunctions were reported. While the argument of Abu Mashar is not correct (as cometary tails are optically thin), parts of the conclusion - namely that comets are outside the Earth atmosphere and beyond the moon - is correct. This may have helped Tycho Brahe to come to his revolutionary conclusion.

  3. Oil and gas developments in Middle East in 1984

    SciTech Connect

    Hemer, D.O.; Lyle, J.H.

    1985-10-01

    Petroleum production in Middle East countries during 1984 totaled 4,088,853,000 bbl (an average rate of 11,144,407 BOPD), down less than 1.0% from the revised total of 4,112,116,000 bbl produced in 1983. Iraq, Kuwait, Qatar, and Oman had significant increases; Iran and Dubai had significant decreases. Jordan produced oil, although a minor amount, for the first time ever, and new production facilities were in the planning stage in Syria, North Yemen, and Oman, which will bring new fields on stream when completed.

  4. Oil and gas developments in Middle East in 1984

    SciTech Connect

    Hemer, D.O.; Lyle, J.H.

    1985-10-01

    Petroleum production in Middle East countries during 1984 totaled 4,088,853,000 bbl (an average rate of 11,144,407 BOPD), down less than 1.0% from the revised total of 4,112,116,000 bbl produced in 1983. Iraq, Kuwait, Qatar, and Oman had significant increases; Iran and Dubai had significant decreases. Jordan produced oil, although a minor amount, for the first time ever, and new production facilities were in the planning stage in Syria, North Yemen, and Oman, which will bring new fields on stream when completed. 4 figures, 9 tables.

  5. Jebel Ali Hotel PV lighting systems

    SciTech Connect

    Ellis, M.

    1984-05-01

    A large stand-alone PV lighting project was installed in June 1983 at the Jebel Ali Hotel in Dubai, United Arab Emirates. A high mast lighting system provides illumination for a 130 meter diameter traffic roundabout. The high mast system is powered by a 15 kilowatt peak array of Mobil Solar ribbon PV modules. Along the 700 meter access road leading to the hotel entrance, twenty-one PV powered streetlights provide low-level lighting. Each streetlight consists of a 20 watt fluorescent tube powered by two 35 Wp modules. Operation of both systems is completely automatic. Design, installation, and operating experience to date are reviewed.

  6. Liquefaction hazard potential in north eastern united arab emirates

    NASA Astrophysics Data System (ADS)

    Al-Homoud, A.

    2003-04-01

    The United Arab Emirates is adjacent to the Iranian plateau characterized by very high density of active and recent faults. The Iranian plateau is one of the seismically active areas of the world and frequently suffers destructive and catastrophic earthquakes that cause heavy loss of human life and widespread damage. Therefore seismic risk in the North Eastern UAE (Sharjah and Dubai) is due to the neighboring very active Iranian seismotectonic province. As almost all foundation soils in the UAE are cohesionless material, which is clearly identified as recent fill deposits in major industrial and residential areas, and given the rapid on-shore infrastructure developments in the North Eastern UAE, and due to the lack of geo-hazards maps, it is considered vital to develop liquefaction hazard maps for these areas. The earthquake risk was brought to the attention of the public and the government upon the recent March 11, 2002 earthquake of magnitude 5.1 on Richter Scale that struck the northern emirates and caused slight damages. Initial seismic hazard assessment studies showed that Design Horizontal Peak Ground Accelerations (PGA) in Sharjah and Dubai with 90% probabilities of non-exceedence in 50 years is around 200 cm/sec^2. This study is concerned with the development of liquefaction hazard maps in North Eastern Emirates UAE Cities of Sharjah and Dubai. Liquefaction hazard potential for various soil deposits in these cities is evaluated for different Peak Ground Acceleation Values. Data from thorough geotechnical studies were evaluated. This include boreholes drilling (with SPT tests) and shear strength for representative sand samples taken from several boreholes and at different depths. Liquefaction hazard potential is evaluated at representative sites in the city of Dubai and Sharjah using the state of the art liquefaction potential evaluation methods (e.g. Seed's cyclic stress ratio approach). Results indicate clearly that the coastal areas have a high potential

  7. Natural radioactivity levels and radiation hazard indices in granite from Aswan to Wadi El-Allaqi southeastern desert, Egypt.

    PubMed

    El-Taher, A; Uosif, M A M; Orabi, A A

    2007-01-01

    Studies on radiation level and radionuclide distribution in granite from Aswan to Wadi El-Allaqi area that is located in southeastern desert of Egypt were undertaken. The samples collected from five locations: Gabal El Mesala, Umm Hibal, Abu Herigle, Abu Marw and Deneibit El Quleib. The purpose of this study is to provide a baseline map of radioactivity background levels in the investigated area environment, and this study will be used as reference information to assess any changes in the radioactive background level due to geological processes. The highest average values of 226Ra and 232Th concentrations (24.00 and 31.28 Bq kg(-1), respectively) were observed at Abu Herigle region, whereas the highest average value of 40K concentration, 589.95 Bq kg(-1), was detected in Umm Hibal. The absorbed dose rate in air was found to be in the range between 5.40 and 45.11 nGy h(-1), and radium equivalent activity concentration was found in the range between 29.57 and 71.85 Bq kg(-1). Also the representative external hazard index values for the corresponding samples were also estimated and given. PMID:17569689

  8. 1st paleomagnetic investigation of Nubia Sandstone at Kalabsha, south Western Desert of Egypt

    NASA Astrophysics Data System (ADS)

    Mostafa, R.; Khashaba, A.; El-Hemaly, I. A.; Takla, E. M.; Abdel Aal, E.; Odah, H.

    2016-06-01

    Two profiles have been sampled from the Nubia Sandstone at Aswan, south Western Desert: the 1st profile has been taken from Abu Aggag Formation and the 2nd one was from Sabaya Formation (23.25 °N, 32.75 °E). 136 oriented cores (from 9 sites) have been sampled. Abu Aggag Formation is of Late Cretaceous (Turonian) and Sabaya Formation is of early Cretaceous (Albian-Cenomanian). The studied rocks are subjected to rock magnetic measurements as well as demagnetization treatment. It has been found that hematite is the main magnetic mineral in both formations. Four profile sections from Abu Aggag Formation, yielded a magnetic component with D = 352.7°, I = 36.6° with α95 = 5.2° and the corresponding pole lies at Lat. = 82.8 °N and Long. = 283.1 °E. Five profile sections from Sabaya Formation, yielded a magnetic component with D = 348.6°, I = 33.3° with α95 = 5.8° and the corresponding pole lies at Lat. = 78.3 °N and Long. = 280.4 °E. The obtained paleopole for the two formations lies at Lat. = 80.5 °N and Long. = 281.7 °E. The obtaind magnetic components are considered primary and the corresponding paleopole reflects the age of Nubia Sandstone when compared with the previously obtained Cretaceous poles for Egypt.

  9. Gyrodactylus aff. mugili Zhukov, 1970 (Monogenoidea: Gyrodactylidae) from the gills of mullets (Mugiliformes: Mugilidae) collected from the inland waters of southern Iraq, with an evalutation of previous records of Gyrodactylus spp. on mullets in Iraq.

    PubMed

    Kritsky, Delane C; Ali, Atheer H; Khamees, Najim R

    2013-11-01

    Gyrodactylus aff. mugili Zhukov, 1970 (Monogenoidea: Gyrodactylidae) is recorded and described from the gill lamellae of 11 of 35 greenback mullet, Chelon subviridis (Valenciennes) (minimum prevalence 31%), from the brackish waters of the Shatt Al-Arab Estuary in southern Iraq. The gyrodactylid was also found on the gill lamellae of one of eight Speigler's mullet, Valamugil speigleri (Bleeker), from the brackish waters of the Shatt Al-Basrah Canal (minimum prevalence 13%). Fifteen Klunzinger's mullet, Liza klunzingeri (Day), and 13 keeled mullet, Liza carinata (Valenciennes), collected and examined from southern Iraqi waters, were apparently uninfected. The gyrodactylids from the greenback mullet and Speigler's mullet were considered to have affinity to G. mugili Zhukov, 1970, and along with G. mugili may represent members of a species complex occurring on mullets in the Indo-Pacific Region. A single damaged gyrodactylid from the external surfaces of the abu mullet, Liza abu (Heckel), was insufficient for species identification. Previously identified species of Gyrodactylus recorded on L. abu in Iraq by various authors were considered possible misidentifications or accidental infections. PMID:24471286

  10. Deliberate Establishment of Asymptomatic Bacteriuria-A Novel Strategy to Prevent Recurrent UTI.

    PubMed

    Wullt, Björn; Svanborg, Catharina

    2016-01-01

    We have established a novel strategy to reduce the risk for recurrent urinary tract infection (UTI), where rapidly increasing antibiotic resistance poses a major threat. Epidemiologic studies have demonstrated that asymptomatic bacteriuria (ABU) protects the host against symptomatic infections with more virulent strains. To mimic this protective effect, we deliberately establish ABU in UTI-prone patients, who are refractory to conventional therapy. The patients are inoculated with Escherichia coli (E. coli) 83972, now widely used as a prototype ABU strain. Therapeutic efficacy has been demonstrated in a placebo-controlled trial, supporting the feasibility of using E. coli 83972 as a tool to prevent recurrent UTI and, potentially, to outcompete antibiotic-resistant strains from the human urinary tract. In addition, the human inoculation protocol offers unique opportunities to study host-parasite interaction in vivo in the human urinary tract. Here, we review the clinical evidence for protection using this approach as well as some molecular insights into the pathogenesis of UTI that have been gained during these studies. PMID:27483325

  11. Unusual folding propensity of an unsubstituted β,γ-hybrid model peptide: importance of the C-H⋅⋅⋅O intramolecular hydrogen bond.

    PubMed

    Venugopalan, Paloth; Kishore, Raghuvansh

    2013-07-22

    The single-crystal X-ray diffraction analysis of a β,γ-hybrid model peptide Boc-β-Ala-γ-Abu-NH2 revealed the existence of four crystallographically independent molecules (A, B, C and D conformers) in the asymmetric unit. The analysis revealed that unusual β-turn-like folded structures predominate, wherein the conformational space of non-proteinogenic β-Ala and γ-Abu residues are restricted to gauche-gauche-skew and skew-gauche-trans-skew orientations, respectively. Interestingly, the U-shaped conformers are seemingly stabilised by an effective unconventional C-H⋅⋅⋅O intramolecular hydrogen bond, encompassing a non-covalent 14-membered ring-motif. Taking into account the signs of torsion angles, these conformers could be grouped into two distinct categories, A/B and C/D, establishing the incidence of non-superimposable stereogeometrical features across a non-chiral one-component peptide model system, that is, "mirror-image-like" relationships. The natural occurrence of β-Ala and γ-Abu entities in various pharmacologically important molecules, coupled with their biocompatibilities, highlight how the non-functionalised β,γ-hybrid segment may offer unique advantages for introducing and/or manipulating a wide spectrum of biologically relevant hydrogen bonded secondary structural mimics in short synthetic peptides. PMID:23775881

  12. Morningside Pi2 Pulsation Observed in Space and on the Ground

    NASA Astrophysics Data System (ADS)

    Ghamry, Essam

    2015-12-01

    In this study, we examined a morningside Pi2 pulsation, with a non-substorm signature, that occurred in very quiet geomagnetic conditions (Kp = 0) at 05:38 UT on December 8, 2012, using data obtained by Van Allen Probes A and B (VAP-A and VAP-B, respectively) and at a ground station. Using 1 sec resolution vector magnetic field data, we measured the X-component of the pulsation from the Abu Simbel ground station (L = 1.07, LT = UT +2 hr, where LT represents local time) in Egypt. At the time of the Pi2 event, Abu Simbel and VAP-A (L = 3.3) were in the morning sector (07:38 LT and 07:59 MLT, respectively, where MLT represents magnetic local time), and VAP-B was in the postmidnight sector (04:18 MLT and L = 5.7). VAP-A and VAP-B observed oscillations in the compressional magnetic field component (Bz), which were in close agreement with the X-component measurements of the Pi2 pulsation that were made at Abu Simbel. The oscillations observed by the satellites and on the ground were in phase. Thus, we concluded that the observed morningside Pi2 pulsation was caused by the cavity resonance mode rather than by ionospheric current systems.

  13. Peptidyl α-Ketoamides with Nucleobases, Methylpiperazine, and Dimethylaminoalkyl Substituents as Calpain Inhibitors

    PubMed Central

    Ovat, Asli; Li, Zhao Zhao; Hampton, Christina Y.; Asress, Seneshaw A.; Fernández, Facundo M.; Glass, Jonathan D.; Powers, James C.

    2010-01-01

    A series of peptidyl α-ketoamides with the general structure Cbz-L-Leu-D,L-AA-CONH-R were synthesized and evaluated as inhibitors for the cysteine proteases calpain I, calpain II and cathepsin B. Nucleobases, methylpiperazine and dimethylaminoalkyl groups were incorporated into the primed region of the inhibitors to generate compounds that potentially cross the blood-brain barrier. Two of these compounds (Cbz-Leu-D,L-Abu-CONH-(CH2)3-adenin-9-yl and Cbz-Leu-D,L-Abu-CONH-(CH2)3-(4-methylpiperazin-1-yl) have been shown to have useful concentrations in the brain in animals. The best inhibitor for calpain I was Cbz-Leu-D,L-Abu-CONH-(CH2)3-2-methoxyadenin-9-yl (Ki = 23 nM) and the best inhibitor for calpain II was Cbz-Leu-D,L-Phe-CONH-(CH2)3-adenin-9-yl (Ki = 68 nM). Based on the crystal structure obtained with heterocyclic peptidyl α-ketoamides, we have improved inhibitor potency by introducing a small hydrophobic group on the adenine ring. These inhibitors have good potential to be used in the treatment of neurodegenerative diseases. PMID:20690647

  14. The effect of additional etching and curing mechanism of composite resin on the dentin bond strength

    PubMed Central

    Lee, In-Su; Son, Sung-Ae; Hur, Bock; Kwon, Yong-Hoon

    2013-01-01

    PURPOSE The aim of this study was to evaluate the effects of additional acid etching and curing mechanism (light-curing or self-curing) of a composite resin on the dentin bond strength and compatibility of one-step self-etching adhesives. MATERIALS AND METHODS Sixteen human permanent molars were randomly divided into eight groups according to the adhesives used (All-Bond Universal: ABU, Clearfil S3 Bond: CS3), additional acid etching (additional acid etching performed: EO, no additional acid etching performed: EX), and composite resins (Filtek Z-250: Z250, Clearfil FII New Bond: CFNB). Group 1: ABU-EO-Z250, Group 2: ABU-EO-CFNB, Group 3: ABU-EX-Z250, Group 4: ABU-EX-CFNB, Group 5: CS3-EO-Z250, Group 6: CS3-EO-CFNB, Group 7: CS3-EX-Z250, Group 8: CS3-EX-CFNB. After bonding procedures, composite resins were built up on dentin surfaces. After 24-hour water storage, the teeth were sectioned to make 10 specimens for each group. The microtensile bond strength test was performed using a microtensile testing machine. The failure mode of the fractured specimens was examined by means of an optical microscope at ×20 magnification. The data was analyzed using a one-way ANOVA and Scheffe's post-hoc test (α=.05). RESULTS Additional etching groups showed significantly higher values than the no additional etching group when using All-Bond Universal. The light-cured composite resin groups showed significantly higher values than the self-cured composite resin groups in the Clearfil S3 Bond. CONCLUSION The additional acid etching is beneficial for the dentin bond strength when using low acidic one-step self-etch adhesives, and low acidic one-step self-etch adhesives are compatible with self-cured composite resin. The acidity of the one-step self-etch adhesives is an influencing factor in terms of the dentin bonding strength and incompatibility with a self-cured composite resin. PMID:24353889

  15. Integrated next-generation sequencing of 16S rDNA and metaproteomics differentiate the healthy urine microbiome from asymptomatic bacteriuria in neuropathic bladder associated with spinal cord injury

    PubMed Central

    2012-01-01

    Background Clinical dogma is that healthy urine is sterile and the presence of bacteria with an inflammatory response is indicative of urinary tract infection (UTI). Asymptomatic bacteriuria (ABU) represents the state in which bacteria are present but the inflammatory response is negligible. Differentiating ABU from UTI is diagnostically challenging, but critical because overtreatment of ABU can perpetuate antimicrobial resistance while undertreatment of UTI can result in increased morbidity and mortality. In this study, we describe key characteristics of the healthy and ABU urine microbiomes utilizing 16S rRNA gene (16S rDNA) sequencing and metaproteomics, with the future goal of utilizing this information to personalize the treatment of UTI based on key individual characteristics. Methods A cross-sectional study of 26 healthy controls and 27 healthy subjects at risk for ABU due to spinal cord injury-related neuropathic bladder (NB) was conducted. Of the 27 subjects with NB, 8 voided normally, 8 utilized intermittent catheterization, and 11 utilized indwelling Foley urethral catheterization for bladder drainage. Urine was obtained by clean catch in voiders, or directly from the catheter in subjects utilizing catheters. Urinalysis, urine culture and 16S rDNA sequencing were performed on all samples, with metaproteomic analysis performed on a subsample. Results A total of 589454 quality-filtered 16S rDNA sequence reads were processed through a NextGen 16S rDNA analysis pipeline. Urine microbiomes differ by normal bladder function vs. NB, gender, type of bladder catheter utilized, and duration of NB. The top ten bacterial taxa showing the most relative abundance and change among samples were Lactobacillales, Enterobacteriales, Actinomycetales, Bacillales, Clostridiales, Bacteroidales, Burkholderiales, Pseudomonadales, Bifidobacteriales and Coriobacteriales. Metaproteomics confirmed the 16S rDNA results, and functional human protein-pathogen interactions were noted in

  16. A Controlled Quasi-Experimental Study of an Educational Intervention to Reduce the Unnecessary Use of Antimicrobials For Asymptomatic Bacteriuria

    PubMed Central

    Irfan, Neal; Brooks, Annie; Mithoowani, Siraj; Celetti, Steve J.; Main, Cheryl; Mertz, Dominik

    2015-01-01

    Background Asymptomatic bacteriuria (ABU) should only be treated in cases of pregnancy or in-patients undergoing urologic procedures; however, unnecessary treatment of ABU is common in clinical practice. Objective To identify risk factors for unnecessary treatment and to assess the impact of an educational intervention focused on these risk factors on treatment of ABU. Design Quasi-experimental study with a control group. Setting Two tertiary teaching adult care hospitals. Participants Consecutive patients with positive urine cultures between January 30th and April 17th, 2012 (baseline) and January 30th and April 30th, 2013 (intervention). Intervention In January 2013, a multifaceted educational intervention based on risk factors identified during the baseline period was provided to medical residents (monthly) on one clinical teaching unit (CTU) at one hospital site, with the CTU of the other hospital serving as the control. Results During the baseline period, 160/341 (46.9%) positive urine cultures were obtained from asymptomatic patients at the two hospitals, and 94/160 (58.8%) were inappropriately treated with antibiotics. Risk factors for inappropriate use included: female gender (OR 2.1, 95% CI 1.1-4.3), absence of a catheter (OR 2.5, 1.2-5), bacteriuria versus candiduria (OR 10.6, 3.8-29.4), pyuria (OR 2.0, 1.1-3.8), and positive nitrites (OR 2.2, 1.1-4.5). In 2013, only 2/24 (8%) of ABU patients were inappropriately treated on the intervention CTU as compared to 14/29 (52%) on the control CTU (OR 0.10; 95% CI 0.02-0.49). A reduction was also observed as compared to baseline on the intervention CTU (OR 0.1, 0.02-0.7) with no significant change noted on the control CTU (OR 0.47, 0.13-1.7). Conclusions A multifaceted educational intervention geared towards medical residents with a focus on identified risk factors for inappropriate management of ABU was effective in reducing unnecessary antibiotic use. PMID:26182348

  17. Atmospheric abundances of primary and secondary carbonaceous species at two high-altitude sites in India: Sources and temporal variability

    NASA Astrophysics Data System (ADS)

    Ram, Kirpa; Sarin, M. M.; Hegde, P.

    Based on the time-series analyses of bulk-aerosol samples, we report on the large-scale temporal variability in the atmospheric abundances of elemental carbon (EC) and organic carbon (OC) at two high-altitude sites, Manora Peak (1950 m asl in north India) and Mt. Abu (1680 m asl in western India). The total suspended particulate (TSP) mass concentration in the ambient atmosphere also exhibits large seasonal variability at both the sites; varying from 13.4 to 432.3 μg m -3 at Mt. Abu and 12.7 to 271.7 μg m -3 at Manora Peak. The relatively high abundance of TSP, occurring during Apr-Jun, is associated with enhanced contribution from mineral dust. Both, OC and EC abundances at Manora Peak are nearly 2-3 times higher than those at Mt. Abu; the minimum concentrations occurring during the high-dust season (Apr-Jun) and monsoon season (Jul-Aug) and maximum in winter months (Dec-Mar). At Mt. Abu, annual-average abundances of OC (range: 0.9-12.3 μg m -3; Av = 3.7 μg m -3) and EC (range: 0.06-2.3 μg m -3; Av = 0.5 μg m -3) account for about 10 and 2% of the TSP, respectively. In contrast, annual-average concentrations of OC and EC at Manora Peak are 8.7 μg m -3 (range: 2.0-22.3 μg m -3) and 1.1 μg m -3 (range: 0.14-2.7 μg m -3), respectively; and account for about 14 and 2% of the TSP. The OC/EC ratios at the two sites (Manora Peak, range: 4.8-14.9 and Mt. Abu, range: 3.0-11.5) are significantly higher compared to those reported in the literature (2.0-3.0) for the urban regions. The high OC/EC ratios and low EC concentrations are attributed to relative dominance of organic carbon derived from biomass burning (crop waste). The average contribution of total carbonaceous aerosols (TCA; TCA = 1.6 × OC + EC) to TSP is ˜24% at Manora Peak and that at Mt. Abu is only 15%. The relatively high contribution of TCA, at Manora Peak, is influenced by the regional emission sources in north India. The contribution of secondary organic carbon (SOC) to OC, calculated based on

  18. Discrete cosine transform and hash functions toward implementing a (robust-fragile) watermarking scheme

    NASA Astrophysics Data System (ADS)

    Al-Mansoori, Saeed; Kunhu, Alavi

    2013-10-01

    This paper proposes a blind multi-watermarking scheme based on designing two back-to-back encoders. The first encoder is implemented to embed a robust watermark into remote sensing imagery by applying a Discrete Cosine Transform (DCT) approach. Such watermark is used in many applications to protect the copyright of the image. However, the second encoder embeds a fragile watermark using `SHA-1' hash function. The purpose behind embedding a fragile watermark is to prove the authenticity of the image (i.e. tamper-proof). Thus, the proposed technique was developed as a result of new challenges with piracy of remote sensing imagery ownership. This led researchers to look for different means to secure the ownership of satellite imagery and prevent the illegal use of these resources. Therefore, Emirates Institution for Advanced Science and Technology (EIAST) proposed utilizing existing data security concept by embedding a digital signature, "watermark", into DubaiSat-1 satellite imagery. In this study, DubaiSat-1 images with 2.5 meter resolution are used as a cover and a colored EIAST logo is used as a watermark. In order to evaluate the robustness of the proposed technique, a couple of attacks are applied such as JPEG compression, rotation and synchronization attacks. Furthermore, tampering attacks are applied to prove image authenticity.

  19. An efficient watermarking technique for satellite images using discrete cosine transform

    NASA Astrophysics Data System (ADS)

    AL-Mansoori, Saeed

    2012-10-01

    Due to the significant progress in science and technology, the digital world became an interesting topic for many studies. "Data Security" is one of the main concepts related to the digital world especially in the field of remote sensing. Therefore, to deal with this matter the "Watermarking" concept was introduced. The idea of digital image watermarking is to embed the information within a signal (i.e. image, video, etc.), which cannot be easily extracted by a third party. This will generate a copyright protection and authentication for the owner(s). Emirates Institution for Advanced Science and Technology (EIAST) as an owner provides satellite images captured by DubaiSat-1 satellite to customers. The aim of this study is to implement a robust algorithm to hide EIAST logo within any delivered image in order to increase the data security and protect the ownership of DubaiSat-1 images. In addition, it is necessary to provide a high quality images to the end-user; nevertheless, adding any information (logo) to these images will affect its quality. Therefore, the model will be designed to keep the observable difference between the watermarked and original image at minimum. Moreover, the watermark should be difficult to remove or alter without the degradation of the host image. This study will be based on Discrete Cosine Transform (DCT) to provide an excellent and highly robust protection in cases such as noise addition, cropping, rotation and JPEG compression attacks.

  20. Fog Prediction for Road Traffic Safety in a Coastal Desert Region: Improvement of Nowcasting Skills by the Machine-Learning Approach

    NASA Astrophysics Data System (ADS)

    Bartoková, Ivana; Bott, Andreas; Bartok, Juraj; Gera, Martin

    2015-12-01

    A new model for nowcasting fog events in the coastal desert area of Dubai is presented, based on a machine-learning algorithm—decision-tree induction. In the investigated region high frequency observations from automatic weather stations were utilized as a database for the analysis of useful patterns. The induced decision trees yield for the first six forecasting hours increased prediction skill when compared to the coupled Weather Research and Forecasting (WRF) model and the PAFOG fog model (Bartok et al., Boundary-Layer Meteorol 145:485-506, 2012). The decision tree results were further improved by integrating the output of the coupled numerical fog forecasting models in the training database of the decision tree. With this treatment, the statistical quality measures, i.e. the probability of detection, the false alarm ratio, and the Gilbert's skill score, achieved values of 0.88, 0.19, and 0.69, respectively. From these results we conclude that the best fog forecast in the Dubai region is obtained by applying for the first six forecast hours the newly-developed machine-learning algorithm, while for forecast times exceeding 6 h the coupled numerical models are the best choice.

  1. Measurement of absorbed doses from X-ray baggage examinations to tooth enamel by means of ESR and glass dosimetry.

    PubMed

    Zhumadilov, Kassym; Stepanenko, Valeriy; Ivannikov, Alexander; Zhumadilov, Zhaxybay; Zharlyganova, Dinara; Toyoda, Shin; Tanaka, Kenichi; Endo, Satoru; Hoshi, Masaharu

    2008-11-01

    The contribution of radiation from X-ray baggage scans at airports on dose formation in tooth samples was investigated by electron spin resonance (ESR) dosimetry and by glass dosimetry. This was considered important, because tooth samples from population around the Semipalatinsk Nuclear Test Site (SNTS), Kazakhstan, had been transported in the past to Hiroshima University for retrospective dose assessment of these residents. Enamel samples and glass dosimeters were therefore examined at check-in time at Kansai airport (Osaka, Japan), Dubai airport (Dubai, United Arab Emirates) and Domodedovo airport (Moscow, Russia). These airports are on the route from Kazakhstan to Japan. Three different potential locations of the samples were investigated: in pocket (without X-ray scans), in a small bag (with four X-ray scans) and in large luggage (with two X-ray scans). The doses obtained by glass and ESR dosimetry methods were cross-compared. As expected, doses from X-ray examinations measured by glass dosimetry were in the microGy range, well below the ESR detection limit and also below the doses measured in enamel samples from residents of the SNTS. PMID:18648837

  2. Source parameters of March 10 and September 13, 2007, United Arab Emirates earthquakes

    NASA Astrophysics Data System (ADS)

    Al Marzooqi, Y.; Abou Elenean, K. M.; Megahed, A. S.; El-Hussain, I.; Rodgers, A. J.; Al Khatibi, E.

    2008-11-01

    On March 10 and September 13, 2007 two earthquakes with moment magnitudes 3.66 and 3.94, respectively, occurred in the eastern part of the United Arab Emirates (UAE). The two events were widely felt in the northern Emirates and Oman and were accompanied by a few aftershocks. Ground motions from these events were well recorded by the broadband stations of Dubai (UAE) and Oman seismological networks and provide an excellent opportunity to study the tectonic process and present day stress field acting in this area. In this study, we report the focal mechanisms of the two main shocks by two methods: first motion polarities and regional waveform moment tensor inversion. Our results indicate nearly pure normal faulting mechanisms with a slight strike slip component. We associated the fault plane trending NNE-SSW with a suggested fault along the extension of the faults bounded Bani Hamid area. The seismicity distribution between two earthquake sequences reveals a noticeable gap that may be a site of a future event. The source parameters (seismic moment, moment magnitude, fault radius, stress drop and displacement across the fault) were also estimated from displacement spectra. The moment magnitudes were very consistent with waveform inversion. The recent deployment of seismic networks in Dubai and Oman reveals tectonic activity in the northern Oman Mountains that was previously unknown. Continued observation and analysis will allow for characterization of seismicity and assessment of seismic hazard in the region.

  3. Grey swan tropical cyclones

    NASA Astrophysics Data System (ADS)

    Lin, Ning; Emanuel, Kerry

    2016-01-01

    We define `grey swan’ tropical cyclones as high-impact storms that would not be predicted based on history but may be foreseeable using physical knowledge together with historical data. Here we apply a climatological-hydrodynamic method to estimate grey swan tropical cyclone storm surge threat for three highly vulnerable coastal regions. We identify a potentially large risk in the Persian Gulf, where tropical cyclones have never been recorded, and larger-than-expected threats in Cairns, Australia, and Tampa, Florida. Grey swan tropical cyclones striking Tampa, Cairns and Dubai can generate storm surges of about 6 m, 5.7 m and 4 m, respectively, with estimated annual exceedance probabilities of about 1/10,000. With climate change, these probabilities can increase significantly over the twenty-first century (to 1/3,100-1/1,100 in the middle and 1/2,500-1/700 towards the end of the century for Tampa). Worse grey swan tropical cyclones, inducing surges exceeding 11 m in Tampa and 7 m in Dubai, are also revealed with non-negligible probabilities, especially towards the end of the century.

  4. Scarabaeus cristatus (Coleoptera: Scarabaeidae) as intermediate host of Physocephalus dromedarii (Nematoda: Spirocercidae)-a contribution to the epidemiology of camel physocephalidosis.

    PubMed

    Schuster, Rolf K; Sivakumar, Saritha; Ismail, Akhmad A; Baumann, Maximilian P O

    2016-03-01

    In UAE, camel Physocephalus dromedarii was diagnosed for the first time in 2011 in dromedaries from a farm that previously had imported animals from foreign countries. The large scarab beetle, Scarabaeus cristatus, was found to be the major intermediate host for this parasite in Dubai. A total of 638 specimens of S. cristatus were collected and examined for the presence of third-stage larvae of nematode larvae at two sites in the Dubai Emirate (Emirates Industry for Camel Milk and Products and horse endurance training track) within a distance of 15 km. Third-stage larvae of P. dromedarii were detected in 94 and 97 % of beetles collected from the territory of the camel milk farm and the endurance training track, respectively. In addition to third-stage larvae, 264 beetles contained second-stage larvae. Only four beetles were infected with other than P. dromedarii larvae. The average larval burden in beetles from camel milk farm was significantly higher compared to those in beetles collected from the other site (1538 vs. 697). Comparison of larval burdens in juvenile and adult beetles collected at the camel milk farm showed a significantly higher intensity in adult specimens (501 vs. 1734) while in beetles found on the horse endurance track, larval burdens were comparable (548 vs. 858). The results suggest that S. cristatus become infected at the camel milk farm, and in search for other sources of food, they fly to places where they were found feeding on feces of other animals. PMID:26621282

  5. Seasonal Variation in Biting Rates of Simulium damnosum sensu lato, Vector of Onchocerca volvulus, in Two Sudanese Foci

    PubMed Central

    Zarroug, Isam M. A.; Hashim, Kamal; Elaagip, Arwa H.; Samy, Abdallah M.; Frah, Ehab A.; ElMubarak, Wigdan A.; Mohamed, Hanan A.; Deran, Tong Chor M.; Aziz, Nabil; Higazi, Tarig B.

    2016-01-01

    Background The abundance of onchocerciasis vectors affects the epidemiology of disease in Sudan, therefore, studies of vector dynamics are crucial for onchocerciasis control/elimination programs. This study aims to compare the relative abundance, monthly biting-rates (MBR) and hourly-based distribution of onchocerciasis vectors in Abu-Hamed and Galabat foci. These seasonally-based factors can be used to structure vector control efforts to reduce fly-biting rates as a component of onchocerciasis elimination programs. Methods A cross-sectional study was conducted in four endemic villages in Abu-Hamed and Galabat foci during two non-consecutive years (2007–2008 and 2009–2010). Both adults and aquatic stages of the potential onchocerciasis vector Simulium damnosum sensu lato were collected following standard procedures during wet and dry seasons. Adult flies were collected using human landing capture for 5 days/month. The data was recorded on handheld data collection sheets to calculate the relative abundance, MBR, and hourly-based distribution associated with climatic factors. The data analysis was carried out using ANOVA and Spearman rank correlation tests. Results Data on vector surveillance revealed higher relative abundance of S. damnosum s.l. in Abu- Hamed (39,934 flies) than Galabat (8,202 flies). In Abu-Hamed, vector populations increased in January-April then declined in June-July until they disappeared in August-October. Highest black fly density and MBR were found in March 2007 (N = 9,444, MBR = 58,552.8 bites/person/month), and March 2010 (N = 2,603, MBR = 16,138.6 bites/person/month) while none of flies were collected in August-October (MBR = 0 bites/person/month). In Galabat, vectors increased in September-December, then decreased in February-June. The highest vector density and MBR were recorded in September 2007 (N = 1,138, MBR = 6,828 bites/person/month) and September 2010 (N = 1,163, MBR = 6,978 bites/person/month), whereas, none appeared in

  6. Probing Host-Selective Phytotoxicity: Synthesis and Biological Activity of Phomalide, Isophomalide, and Dihydrophomalide.

    PubMed

    Ward, Dale E.; Vázquez, Alfredo; Pedras, M. Soledade C.

    1999-03-01

    The cyclic depsipeptide phomalide [cyclo(Val-(E)-Aba-Hpp-Hmp-(R)-Leu); Aba = 2-amino-2-butenoic acid, Hpp = (2S)-2-hydroxy-3-phenylpropanoic acid, Hmp = (2S)-2-hydroxy-4-methylpentanoic acid] is the host-selective phytotoxin produced by the fungus [Leptosphaeria maculans (Desm.) Ces. et de Not., asexual stage Phoma lingam (Tode ex Fr.) Desm.] which causes blackleg disease (a devastating disease of several economically important brassica crops). Efficient total syntheses of phomalide, its (Z)-isomer isophomalide, and the two dihydro analogues [(R)-dihydrophomalide and (S)-dihydrophomalide] are described. A [2 + 3] fragment coupling of Cbz-Val-(Z)-Aba with Hpp-Hmp-D-Leu-OBn followed by deprotection and cyclization gave isophomalide which was diastereoselectively isomerized to phomalide by conjugate addition of PhSeH followed by elimination of the corresponding selenoxide. The dihydro analogues were prepared similarly using Cbz-Val-(R)-Abu or Cbz-Val-(S)-Abu (Abu = 2-aminobutanoic acid) in place of Cbz-Val-(Z)-Aba. Biological evaluations of phomalide, isophomalide, and the dihydrophomalides revealed that only phomalide (10(-)(5) M) caused necrotic, chlorotic, and reddish lesions on canola (Brassica napus and Brassica rapa; susceptible to blackleg) leaves whereas no damage was observed on brown mustard (Brassica juncea; resistant to blackleg) or white mustard (Sinapis alba; resistant to blackleg) leaves, even at significantly higher concentrations (10(-)(4) M). Thus, both the presence and configuration of the double bond is crucial for selective phytotoxicity. This is the first reported synthesis of an (E)-Aba-containing natural product, and importantly, the (Z) --> (E) isomerization approach should be applicable to other (depsi)peptide targets thereby allowing investigation of the effect of the double-bond configuration on various properties. PMID:11674233

  7. Molecular Analysis of Asymptomatic Bacteriuria Escherichia coli Strain VR50 Reveals Adaptation to the Urinary Tract by Gene Acquisition

    PubMed Central

    Ben Zakour, Nouri L.; Totsika, Makrina; Forde, Brian M.; Watts, Rebecca E.; Mabbett, Amanda N.; Szubert, Jan M.; Sarkar, Sohinee; Phan, Minh-Duy; Peters, Kate M.; Petty, Nicola K.; Alikhan, Nabil-Fareed; Sullivan, Mitchell J.; Gawthorne, Jayde A.; Stanton-Cook, Mitchell; Nhu, Nguyen Thi Khanh; Chong, Teik Min; Yin, Wai-Fong; Chan, Kok-Gan; Hancock, Viktoria; Ussery, David W.; Ulett, Glen C.

    2015-01-01

    Urinary tract infections (UTIs) are among the most common infectious diseases of humans, with Escherichia coli responsible for >80% of all cases. One extreme of UTI is asymptomatic bacteriuria (ABU), which occurs as an asymptomatic carrier state that resembles commensalism. To understand the evolution and molecular mechanisms that underpin ABU, the genome of the ABU E. coli strain VR50 was sequenced. Analysis of the complete genome indicated that it most resembles E. coli K-12, with the addition of a 94-kb genomic island (GI-VR50-pheV), eight prophages, and multiple plasmids. GI-VR50-pheV has a mosaic structure and contains genes encoding a number of UTI-associated virulence factors, namely, Afa (afimbrial adhesin), two autotransporter proteins (Ag43 and Sat), and aerobactin. We demonstrated that the presence of this island in VR50 confers its ability to colonize the murine bladder, as a VR50 mutant with GI-VR50-pheV deleted was attenuated in a mouse model of UTI in vivo. We established that Afa is the island-encoded factor responsible for this phenotype using two independent deletion (Afa operon and AfaE adhesin) mutants. E. coli VR50afa and VR50afaE displayed significantly decreased ability to adhere to human bladder epithelial cells. In the mouse model of UTI, VR50afa and VR50afaE displayed reduced bladder colonization compared to wild-type VR50, similar to the colonization level of the GI-VR50-pheV mutant. Our study suggests that E. coli VR50 is a commensal-like strain that has acquired fitness factors that facilitate colonization of the human bladder. PMID:25667270

  8. Wood remains from the Late Triassic (Carnian) of Jordan and their paleoenvironmental implications

    NASA Astrophysics Data System (ADS)

    Abu Hamad, Abdalla M. B.; Jasper, André; Uhl, Dieter

    2014-07-01

    During field work in the Triassic of Jordan fossil wood remains have been discovered at five horizons (S-1AR-S-5AR) of the Late Triassic (Carnian) Abu Ruweis Formation in NW Jordan. In most horizons wood remains are too badly preserved to allow for a detailed xylotomic investigation. Only two horizons provided material which exhibited anatomical details: (1) in horizon S-1AR we found rare and rather small fragments of woody charcoal exhibiting cellular details (representing the first macroscopic evidence of paleo-wildfires from the Late Triassic of the Middle East), and (2) in horizon S-5AR surfaces of partly compressed (gagatized) and partly permineralized wood fragments exhibited anatomical details that could be investigated by means of scanning electron microscopy. All wood remains that allow for a detailed investigation show features typical of gymnosperms, but at the moment nothing can be said about a more specific taxonomic affinity of most of the woods, although wood from horizon S-5AR exhibits characteristics of protopinoid wood. Our data provide evidence that gymnospermous woody vegetation cover has existed in the source areas of the sediments deposited in the Abu Ruweis Formation in Jordan and that this woody vegetation occasionally experienced wildfires. This, together with lithological data, provides evidence for a seasonally dry (maybe even arid) climate during deposition of the Abu Ruweis Formation. On a larger scale our findings contribute to the very scarce current knowledge about Late Triassic wildfires on the entire continent Gondwana, from where so far only three records of macro-charcoals, as undisputed evidence of paleo-wildfires, have been published from this period.

  9. Molecular Analysis of Asymptomatic Bacteriuria Escherichia coli Strain VR50 Reveals Adaptation to the Urinary Tract by Gene Acquisition

    DOE PAGESBeta

    Beatson, Scott A.; Ben Zakour, Nouri L.; Totsika, Makrina; Forde, Brian M.; Watts, Rebecca E.; Mabbett, Amanda N.; Szubert, Jan M.; Sarkar, Sohinee; Phan, Minh-Duy; Peters, Kate M.; et al

    2015-05-01

    Urinary tract infections (UTIs) are among the most common infectious diseases of humans, with Escherichia coli for >80% of all cases. One extreme of UTI is asymptomatic bacteriuria (ABU), which occurs as an asymptomatic carrier state that resembles commensalism. Here, to understand the evolution and molecular mechanisms that underpin ABU, the genome of the ABU E. coli strain VR50 was sequenced. Analysis of the complete genome indicated that it most resembles E. coli K-12, with the addition of a 94-kb genomic island (GI-VR50-pheV), eight prophages, and multiple plasmids. GI-VR50-pheV has a mosaic structure and contains genes encoding a number ofmore » UTI-associated virulence factors, namely, Afa (afimbrial adhesin), two autotransporter proteins (Ag43 and Sat), and aerobactin. We demonstrated that the presence of this island in VR50 confers its ability to colonize the murine bladder, as a VR50 mutant with GI-VR50-pheV deleted was attenuated in a mouse model of UTI in vivo. We established that Afa is the island-encoded factor responsible for this phenotype using two independent deletion (Afa operon and AfaE adhesin) mutants. E. coli VR50afa and VR50afaE displayed significantly decreased ability to adhere to human bladder epithelial cells. In the mouse model of UTI, VR50afa and VR50afaE displayed reduced bladder colonization compared to wild-type VR50, similar to the colonization level of the GI-VR50-pheV mutant. In conlusion, our study suggests that E. coli VR50 is a commensal-like strain that has acquired fitness factors that facilitate colonization of the human bladder.« less

  10. Petrophysical and magnetic pore network anisotropy of some cretaceous sandstone from Tushka Basin, Egypt

    NASA Astrophysics Data System (ADS)

    Nabawy, Bassem S.; Rochette, Pierre; Géraud, Yves

    2009-04-01

    Pore magnetic fabric is a well-established technique for the determination of pore elongation and preferred directions for migration of the interstitial fluids. This study further exemplify this technique on a set of the Nubia sandstones through a comparison with the pore anisotropy obtained from measuring permeability in three orthogonal directions in a gaz permeameter. The Nubia sandstones are represented in Tushka area (South Egypt) by quartz arenite of large porosity (29-40 per cent) which was measured on thin sections parallel and perpendicular to the bedding plane and petrophysically by helium pycnometry and ferrofluid injection at 1 bar pressure. Petrographically, there is a detectable difference between the porosity values in the bedding plane and in the perpendicular direction indicating inhomogeneity in the pore space network distribution. The petrophysical studies indicate large porosity and permeability values with some differences between the helium and ferrofluid porosity due to presence of micro pore spaces not accessible for the ferrofluid molecules having relatively high diameters and injected at low pressure. An overall agreement is observed between the permeability anisotropy and the magnetic grain and pore fabrics (magnetic anisotropy measured before and after ferrofluid injection). The three fabrics are mainly dominated by a bedding parallel foliation. In a few cases maximum permeability appears to be perpendicular to bedding. Within the bedding plane, maximum pore elongation direction from ferrofluid injection is NNW for Adindan and Kesieba formations and NW for Abu Simbil Formation. The maximum pore elongation direction for Abu Ballas samples showed a direction fluctuating around the E-W direction, the main fault trends in Tushka area. The pore fabric of Abu Ballas formation seems therefore to be structurally controlled, while it would be originated from palaeocurrent directions in the other formations.

  11. Paleozoic and Mesozoic stratigraphy and oil potential of Western Desert

    SciTech Connect

    Khalil, N.A.; Young, D.; Nairn, A.E.M.

    1983-03-01

    The depocenter of the Paleozoic basin in western Egypt lies in the northwestern part of the Western Desert. The depositional axis of the basin, where thicknesses in excess of 2800 m (9200 ft) have been recorded, has a northwesterly trend to the vicinity of the Siwa Oasis. A less well-defined shallower basin with a northerly trend lies to the southwest. Farther east, a possible Paleozoic basin lies in the Abu Gharadig area where 1300 m (4265 ft) of sediments were drilled. Following the deposition of the Paleozoic section, there was a marked hiatus; the time of Hercynian movements for Permian and Triassic beds is absent. Uplift and the presence of volcanics dated in Permian-Carboniferous time are indicative of Hercynian tectonic activity. Further tectonic uplift accompanied by faulting and marine regression is dated from late Kimmeridgian time to the beginning of the Cretaceous, when transgression began once again. The dominant feature, new in the Western Desert, was the development of an east-west extensional basin, the Abu Gharadig basin, in Cretaceous time. The trough became less distinctive in Cenozoic times when a further trough, the Tiba basin, developed north of the ridge. Production from the northern Western Desert until recently has been disappointing. Exploration results from the Paleozoic Section have yielded little, but the existence of a marine section suggests that the area northeast of Siwa still has potential. The thick deeply buried Jurassic marine sequence in the Western Desert may be the source for at least part of the production from Cretaceous horizons in the Abu Ghradig, Alamein, and Razzak oil and gas fields.

  12. Investigations of the middle atmospheric thermal structure and oscillations over sub-tropical regions in the Northern and Southern Hemispheres

    NASA Astrophysics Data System (ADS)

    Sharma, Som; Kumar, Prashant; Jethva, Chintan; Vaishnav, Rajesh; Bencherif, Hassan

    2016-08-01

    The temperature retrieved from the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) onboard Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) satellite during January 2002 to September 2015 are used in this study to delineate the differences of middle atmospheric thermal structure in the Northern Hemisphere (NH) and Southern Hemisphere (SH). Two stations namely Mt. Abu (24.59°N, 72.70°E) in NH and Reunion Island (21.11°S, 55.53°E) in SH are chosen over sub-tropical regions. Temperature climatology from SABER observations suggests that stratopause is warmer, and upper mesosphere is cooler in NH as compared to SH. Three atmospheric models are used to understand the monthly thermal structure differences for different altitudes. Moreover, semi-annual, annual and quasi-biennial oscillations are studied using Lomb Scargle Periodogram and Wavelet transform techniques. Over NH, summer and winter season are warmer (~4 K) and cooler (~3 K) respectively in stratosphere as compared to SH. It is important to note here that Mt. Abu temperature is warmer (~9 K) than Reunion Island in winter but in summer season Mt. Abu temperature is cooler in upper mesosphere and above mesosphere NH shows warming. Results show that annual oscillations are dominated in both hemisphere as compared to semi-annual and quasi-biennial oscillations. In upper mesosphere, strength of annual oscillations is substantial in NH, while semi-annual oscillations are stronger in SH. Wavelet analyses found that annual oscillations are significant in NH near mesopause, while semi-annual oscillations are strengthening in SH.

  13. The negative effect of environmental geological conditions of some geo-archaeological sites of North Coast and Alexandria

    NASA Astrophysics Data System (ADS)

    Ibrahim, Hani; Kamh, Gamal

    2005-12-01

    Three geo-archaeological sites at the North Coast and Alexandria, namely, the Alexandria wall (El Shalalat Park site), Abu Soir temple, and Marina excavations, were investigated to determine the negative impact of a salty environmental condition. The monuments suffer from rock decay of different rates. The geo-archaeological sites were built mainly from oolitic limestone blocks (i.e., the Alexandria wall at the El Shalalat Park site and Abu Soir temple) or excavated on them (i.e., Marina excavations). Field inspection and a lab analysis were carried out to understand the weathering mechanism. Salt weathering criteria such as disintegration, pitting, scaling, exfoliation, and honeycomb are observed on the Alexandria wall and upper parts of the Abu Soir temple, while dangerous cracks are detected on the Marina excavation tombs. The petrographic study of the oolitic limestone samples shows that they consist mainly of oolities and drusy sparite as a cement (oolitic grainstone). Some oolities have quartz grains as nuclei. Hydrochemical analysis shows that the total dissolved salts of extracted solutions of the North Coast quarry samples range from 539 to 686 ppm and dramatically increase (i.e., ten times) for extracted solutions from monument samples, ranging from 5395 to 6880 ppm. The dominant cation is sodium while the dominant anion is chlorine. Acid insoluble residue analysis shows that the carbonate content ranges from 89.2% to 96.4% for fresh samples from quarries and from 9.2% to 94.8% for weathered monument samples. The weight loss of the quarry oolitic limestone samples range from 30.7% to 32.7% and its physical and mechanical properties become worse after being subjected to 15 cycles of a durability simulation soundness test (using a sodium sulphate solution). Our main recommendations are to use suitable grouting for binding the cracks, high durability reconstruction rocks, and suitable cleaning methods to remove salts from the monuments.

  14. Molecular Analysis of Asymptomatic Bacteriuria Escherichia coli Strain VR50 Reveals Adaptation to the Urinary Tract by Gene Acquisition

    SciTech Connect

    Beatson, Scott A.; Ben Zakour, Nouri L.; Totsika, Makrina; Forde, Brian M.; Watts, Rebecca E.; Mabbett, Amanda N.; Szubert, Jan M.; Sarkar, Sohinee; Phan, Minh-Duy; Peters, Kate M.; Petty, Nicola K.; Alikhan, Nabil-Fareed; Sullivan, Mitchell J.; Gawthorne, Jayde A.; Stanton-Cook, Mitchell; Nhu, Nguyen Thi Khanh; Chong, Teik Min; Yin, Wai-Fong; Chan, Kok-Gan; Hancock, Viktoria; Ussery, David W.; Ulett, Glen C.; Schembri, Mark A

    2015-05-01

    Urinary tract infections (UTIs) are among the most common infectious diseases of humans, with Escherichia coli for >80% of all cases. One extreme of UTI is asymptomatic bacteriuria (ABU), which occurs as an asymptomatic carrier state that resembles commensalism. Here, to understand the evolution and molecular mechanisms that underpin ABU, the genome of the ABU E. coli strain VR50 was sequenced. Analysis of the complete genome indicated that it most resembles E. coli K-12, with the addition of a 94-kb genomic island (GI-VR50-pheV), eight prophages, and multiple plasmids. GI-VR50-pheV has a mosaic structure and contains genes encoding a number of UTI-associated virulence factors, namely, Afa (afimbrial adhesin), two autotransporter proteins (Ag43 and Sat), and aerobactin. We demonstrated that the presence of this island in VR50 confers its ability to colonize the murine bladder, as a VR50 mutant with GI-VR50-pheV deleted was attenuated in a mouse model of UTI in vivo. We established that Afa is the island-encoded factor responsible for this phenotype using two independent deletion (Afa operon and AfaE adhesin) mutants. E. coli VR50afa and VR50afaE displayed significantly decreased ability to adhere to human bladder epithelial cells. In the mouse model of UTI, VR50afa and VR50afaE displayed reduced bladder colonization compared to wild-type VR50, similar to the colonization level of the GI-VR50-pheV mutant. In conlusion, our study suggests that E. coli VR50 is a commensal-like strain that has acquired fitness factors that facilitate colonization of the human bladder.

  15. Molecular analysis of asymptomatic bacteriuria Escherichia coli strain VR50 reveals adaptation to the urinary tract by gene acquisition.

    PubMed

    Beatson, Scott A; Ben Zakour, Nouri L; Totsika, Makrina; Forde, Brian M; Watts, Rebecca E; Mabbett, Amanda N; Szubert, Jan M; Sarkar, Sohinee; Phan, Minh-Duy; Peters, Kate M; Petty, Nicola K; Alikhan, Nabil-Fareed; Sullivan, Mitchell J; Gawthorne, Jayde A; Stanton-Cook, Mitchell; Nhu, Nguyen Thi Khanh; Chong, Teik Min; Yin, Wai-Fong; Chan, Kok-Gan; Hancock, Viktoria; Ussery, David W; Ulett, Glen C; Schembri, Mark A

    2015-05-01

    Urinary tract infections (UTIs) are among the most common infectious diseases of humans, with Escherichia coli responsible for >80% of all cases. One extreme of UTI is asymptomatic bacteriuria (ABU), which occurs as an asymptomatic carrier state that resembles commensalism. To understand the evolution and molecular mechanisms that underpin ABU, the genome of the ABU E. coli strain VR50 was sequenced. Analysis of the complete genome indicated that it most resembles E. coli K-12, with the addition of a 94-kb genomic island (GI-VR50-pheV), eight prophages, and multiple plasmids. GI-VR50-pheV has a mosaic structure and contains genes encoding a number of UTI-associated virulence factors, namely, Afa (afimbrial adhesin), two autotransporter proteins (Ag43 and Sat), and aerobactin. We demonstrated that the presence of this island in VR50 confers its ability to colonize the murine bladder, as a VR50 mutant with GI-VR50-pheV deleted was attenuated in a mouse model of UTI in vivo. We established that Afa is the island-encoded factor responsible for this phenotype using two independent deletion (Afa operon and AfaE adhesin) mutants. E. coli VR50afa and VR50afaE displayed significantly decreased ability to adhere to human bladder epithelial cells. In the mouse model of UTI, VR50afa and VR50afaE displayed reduced bladder colonization compared to wild-type VR50, similar to the colonization level of the GI-VR50-pheV mutant. Our study suggests that E. coli VR50 is a commensal-like strain that has acquired fitness factors that facilitate colonization of the human bladder. PMID:25667270

  16. Discovery and Characterization of Human-Urine Utilization by Asymptomatic-Bacteriuria-Causing Streptococcus agalactiae

    PubMed Central

    Ipe, Deepak S.; Ben Zakour, Nouri L.; Sullivan, Matthew J.; Beatson, Scott A.; Ulett, Kimberly B.; Benjamin, William H.; Davies, Mark R.; Dando, Samantha J.; King, Nathan P.; Cripps, Allan W.; Dougan, Gordon

    2015-01-01

    Streptococcus agalactiae causes both symptomatic cystitis and asymptomatic bacteriuria (ABU); however, growth characteristics of S. agalactiae in human urine have not previously been reported. Here, we describe a phenotype of robust growth in human urine observed in ABU-causing S. agalactiae (ABSA) that was not seen among uropathogenic S. agalactiae (UPSA) strains isolated from patients with acute cystitis. In direct competition assays using pooled human urine inoculated with equal numbers of a prototype ABSA strain, designated ABSA 1014, and any one of several UPSA strains, measurement of the percentage of each strain recovered over time showed a markedly superior fitness of ABSA 1014 for urine growth. Comparative phenotype profiling of ABSA 1014 and UPSA strain 807, isolated from a patient with acute cystitis, using metabolic arrays of >2,500 substrates and conditions revealed unique and specific l-malic acid catabolism in ABSA 1014 that was absent in UPSA 807. Whole-genome sequencing also revealed divergence in malic enzyme-encoding genes between the strains predicted to impact the activity of the malate metabolic pathway. Comparative growth assays in urine comparing wild-type ABSA and gene-deficient mutants that were functionally inactivated for the malic enzyme metabolic pathway by targeted disruption of the maeE or maeK gene in ABSA demonstrated attenuated growth of the mutants in normal human urine as well as synthetic human urine containing malic acid. We conclude that some S. agalactiae strains can grow in human urine, and this relates in part to malic acid metabolism, which may affect the persistence or progression of S. agalactiae ABU. PMID:26553467

  17. Resistance and virulence potential of uropathogenic Escherichia coli strains isolated from patients hospitalized in urology departments: a French prospective multicentre study.

    PubMed

    Lavigne, Jean-Philippe; Bruyère, Franck; Bernard, Louis; Combescure, Christophe; Ronco, Esthel; Lanotte, Philippe; Coloby, Patrick; Thibault, Michel; Cariou, Gérard; Desplaces, Nicole; Costa, Pierre; Sotto, Albert

    2016-06-01

    We characterized antibiotic resistance and virulence of uropathogenic Escherichia coli (UPEC) strains isolated from urinary tract infections (UTIs) in patients hospitalized in urology departments. A prospective multicentre study was initiated from March 2009 and lasted until February 2010 in French urology units. All patients with asymptomatic bacteriuria (ABU), acute cystitis, acute pyelonephritis or acute prostatitis in whom UPEC was detected were included. Antimicrobial resistance and virulence factors were compared among the different groups. To identify independent associations between virulence markers and the risk of UTI, we used a multivariate logistic regression. We included 210 patients (mean age: 65.8 years; 106 female). Episode of UTI was community acquired in 72.4 %. ABU was diagnosed in 67 cases (31.9 %), cystitis in 52 cases (24.7 %), pyelonephritis in 35 cases (16.7 %) and prostatitis in 56 cases (26.7 %). ABU was more frequent in patients with a urinary catheter (76.1 vs 23.9 %, P<0.001). The resistance rate was 7.6 and 24.8 % for cefotaxime and ciprofloxacin, respectively. UPEC isolated from infections belonged more frequently to phylotypes B2 and D (P =0.07). The papG allele II and papA, papC, papE, kpsMTII and iutA genes were significantly more frequent in infecting strains (P<0.05). In multivariate analysis, strains susceptible to ciprofloxacin were significantly associated with papG allele II (P=0.007), kpsMTK1 (P<0.001) and hlyA (P<0.001) compared with the ciprofloxacin-resistant strains. To the best of our knowledge, this is the first study evaluating the antibiotic resistance and virulence features of UPEC isolated from patients hospitalized in urology departments. High resistance rates were observed, notably for ciprofloxacin, highlighting the importance of a reinforced surveillance in this setting. PMID:26953145

  18. Title Requested

    NASA Astrophysics Data System (ADS)

    Limaye, S. S.; Prabhu, T.; Bhatt, B. C.; Anandrao, B. G.; Emerson, G.; Young, E. F.

    2004-11-01

    In order to obtain a better dataset for tracking features in near infrared images of Venus, coordinated observations were made from two telescopes in India - the 1m Mt. Abu telescope at Gurushikhar (Location: 24o 39' 8.8" North Latitude, 72o 46' 47.47", 1680 m above MSL, NICMOS III camera, 0.5 arcsec/pixel) and the 2m Optical-Infrared Himalayan Chandra Telescope at Hanle, Ladakh (32o 35' 46" North Latitude and 78o 57' 51" East Longitude, 4500 m above MSL, NIR Camera, 0.21 arcsec/pixel) during 4-10 May 2004 and 6 -10 July 2004 when similar observations were also made from IRTF (Young et al., 2004) and Nordic Optical Telescope (Warell et al., 2004) as well as APO and AAT. Images were obtained at 2.29 micron wavelength using the filters available at the telescopes and show considerable variability from day to day in the atmospheric features. Yet there is enough retention of structural features that suggest a lifetime of 7 days indicating one complete rotation as observed from HCT data taken in May 2004. These features are believed to originate at 52 km level above the Venus surface and the motions are consistent with a rotation rate of 63 m/s at the equator. When combined with those from NOT, IRTF, APO and AAT these observations will yield better information about the circulation at 52 km altitude than has been possible from previous observations. We acknowledge the support and hospitality extended to us to obtain these observations by the staff of Mt. Abu and the Chandra telescopes, in particular Rajesh Shat and Jinesh Jain. Mt. Abu Telescope is operated by Physical Research Laboratory (Ahmedabad, India) and the Chandra Telescope is operated by Center for Research and Education in Science and Technology, Indian Institute of Astrophysics (Bangalore, India). Both are supported by the Indian Space Research Organization

  19. Degradation, receptor binding, insulin secreting and antihyperglycaemic actions of palmitate-derivatised native and Ala8-substituted GLP-1 analogues.

    PubMed

    Green, Brian D; Gault, Victor A; Mooney, Mark H; Irwin, Nigel; Harriott, Patrick; Greer, Brett; Bailey, Cliff J; O'Harte, Finbarr P M; Flatt, Peter R

    2004-02-01

    The hormone glucagon-like peptide-1(7-36)amide (GLP-1) is released in response to ingested nutrients and acts to promote glucose-dependent insulin secretion ensuring efficient postprandial glucose homeostasis. Unfortunately, the beneficial actions of GLP-1 which give this hormone many of the desirable properties of an antidiabetic drug are short lived due to degradation by dipeptidyl-peptidase IV (DPP IV) and rapid clearance by renal filtration. In this study we have attempted to extend GLP-1 action through the attachment of palmitoyl moieties to the epsilon-amino group in the side chain of the Lys26 residue and to combine this modification with substitutions of the Ala8 residue, namely Val or amino-butyric acid (Abu). In contrast to native GLP-1, which was rapidly degraded, [Lys(pal)26]GLP-1, [Abu8, Lys(pal)26]GLP-1 and [Val8 Lys(pal)26]GLP-1 all exhibited profound stability during 12 h incubations with DPP IV and human plasma. Receptor binding affinity and the ability to increase cyclic AMP in the clonal beta-cell line BRIN-BD11 were decreased by 86- to 167-fold and 15- to 62-fold, respectively compared with native GLP-1. However, insulin secretory potency tested using BRIN-BD11 cells was similar, or in the case of [Val8,Lys(pal)26]GLP-1 enhanced. Furthermore, when administered in vivo together with glucose to diabetic (ob/ob) mice, [Lys(pal)26]GLP-1, [Abu8,Lys(pal)26]GLP-1 and [Val8,Lys(pal)26]GLP-1 did not demonstrate acute glucose-lowering or insulinotropic activity as observed with native GLP-1. These studies support the potential usefulness of fatty acid linked analogues of GLP-1 but indicate the importance of chain length for peptide kinetics and bioavailability. PMID:15101559

  20. Recent observed climate change over the Arabian Peninsula

    NASA Astrophysics Data System (ADS)

    Alsarmi, Said; Washington, Richard

    2011-06-01

    We have examined trends in temperature and precipitation parameters for the Arabian Peninsula (AP) during the last 2 to 3 decades. The data set has been carefully quality controlled and checked for homogeneity. Although of low density (21 stations) and relatively short time period, a clear picture of climate change in the region has emerged. The general pattern of the AP mean annual temperature trend is one of warming, with 14 of 21 stations show statistically significant warming at 0.05 level and most at 0.001 level and only one (Seeb) showing statistically significant cooling. The highest statistically significant mean annual warming trends are found in Oman (Sur = 1.03°C decade-1) and Emirates (Dubai = 0.81°C decade-1). The season of maximum warming in mean temperature is March to April. The highest monthly mean temperature trend in the AP occurs in Sur in May (1.47°C decade-1). There is a broad statistically significant increase in mean annual maximum temperature in AP in 12 out of 21 stations, with the highest trends in central and eastern/southeastern AP. Only SW AP and the Gulf of Oman do not show warming. The highest monthly maximum temperature trend in the AP occurs in Bahrain in March (2.27°C decade-1). The second highest significant warming trends are reported in Doha in February (1.54°C decade-1). For minimum temperature, 16 out of 21 stations show statistically significant warming trends, with the highest annual trends observed in the Emirates (Dubai = 1.24°C decade-1), northwest Oman (Sohar = 1.17°C decade-1) and Qatar (Doha = 1.13°C decade-1). The highest monthly minimum temperature warming rate occurred in October. Both Dubai and Kuwait reported the highest significant rate of 2.00°C decade-1. The general mean annual diurnal temperature range trend is negative in the AP, with six out of 21 stations show statistically significant negative trends while three stations show statistically significant positive trends. Trends in mean annual

  1. Currents, Water Budget and Turn-Over Time Within A Man-Made Coastal Mega-Structure: Palm Jumeirah, Southern Arabian Gulf, United Arab Emirates

    NASA Astrophysics Data System (ADS)

    Cavalcante, G.; Kjerfve, B.

    2009-05-01

    Large-scale land reclamation projects along the coastline of Dubai, United Arab Emirates (UAE), are set to expand from 45 km of natural shoreline to more than 1,500 km by 2010. The increasing scale of coastal development in Dubai has large-scale effects on water movement throughout the project area. Palm Jumeirah is the oldest, most well-developed of several man-made coastal mega-constructions in Dubai. This construction project started 6 years ago, has an overall surface area of 7.9 km2 and a footprint of 23 km2, and is connected to the coast via a 5-km long spine from the mainland to the crescent tip. We made time series observations of hydrographic properties and currents within the Palm Jumeirah Lagoon (PJL) during 29 days in April/May 2008 to examine the current flows, water budget, salt transport, and turn-over time. The currents and water flow within the PJL were quite variable, with stronger currents, greater material transports, lower water temperatures, and slightly lower salinities in areas close to the entrances where flushing is ample. Due to the shallow water depths, we found only weak vertical stratification during a tidal cycle. The lagoon system is comprised of 18 blind channels surrounded by a semi-circular open channel, which in turn is linked to the coastal waters by 4 gaps (one each on the East and West sides and two at the base of the development) in the rocky breakwater that surrounds the development. We found substantial differences in water discharge between the east and west gaps, with high discharge on average exiting the east gap and extremely low water discharge exiting the west gap. Our results indicate that the PJL is flushed unequally between the east and west sides with residence times of 1.2 and 42 days for the east and west sides of the development, respectively. Previous studies of water residence time using the DELFT3D hydrodynamics simulation modeling software did not capture this difference accurately, estimating residence

  2. A note on "an erroneous formula in use for estimating radon exhalation rates from samples using sealed can technique".

    PubMed

    Mayya, Y S; Sahoo, B K

    2016-05-01

    In this note, we point out a serious fallacy in a formula that has appeared in literature for calculating the (222)Rn exhalation rates using the Solid-State Nuclear Track Detector (SSNTD) based sealed can technique. It is shown that this formula underestimates true exhalation rates by a factor of more than 10(6). Several publications have used this formula instead of the well-known Abu-Jarad formula and have reported unrealistically low (µBq/m(2)/d) surface exhalation rates for normal materials. PMID:26896680

  3. Infrared observations of nova V5588 Sagittarii

    NASA Astrophysics Data System (ADS)

    Banerjee, D. P. K.; Ashok, N. M.

    2011-05-01

    We report near-IR 1.08 to 2.3 micron spectroscopy of the nova V5588 Sgr using the NICMOS3 imager/spectrograph and the 1.2m Mount Abu telescope of the Physical Research Laboratory. The spectra were taken on 26 April and 4 May 2011, after the large second rebrightening of the nova reported on 25.11 April (Munari et al., CBET 2707) when it reached V = 11.7, a brightness level comparable to that of the primary maximum of V = 11.2 reached on 7 April 2011.

  4. Te-norm in phosphogypsum characterization and treatment

    SciTech Connect

    El-Reefy, S.A.; AttaAllah, M.F.; Hilal, M.A.; EL Afifi, E.M.

    2007-07-01

    The present work is directed to the characterization of the phosphogypsum (PG) solid waste which accompanying the production of phosphoric acid by the wet process in Abu Zaabal company for fertilizers and chemicals production in Egypt. Samples from PG were characterized radiometrically using both {gamma}- and {alpha}- spectrometric analysis and the different naturally occurring radionuclides present were identified. The main activity concentrations of such radionuclides were determined and the data obtained showed that this waste contains an enhanced level of some radionuclides especially Ra-226. Treatment investigations were experimented to reduce the enhanced activity level of Ra-226, which was found to exceed that permitted by the international regulations. (authors)

  5. Egypt's petrogas plans gas for Cairo homes

    SciTech Connect

    Sharman, R.B.

    1981-12-01

    The first phase of Egypt's program to ultimately convert 640,000 LPG users to natural gas will cover four Cairo suburbs, supply about 160,000 customers, modify some 300,000 appliances, and switch two power plants to gas firing. The Abu el Gharadig field 155 miles west of the city will supply the gas via a new 38-mile transmission line. Most of the new distribution system will use polyethylene pipe. BGC's international Consultancy Service is helping Egypt's Petrogas plan and supervise the ambitious project.

  6. [El Kitāb al-Jawāss de Abū l-'Alā' Zuhr: materials for study].

    PubMed

    Alvarez Millán, C

    1994-01-01

    The present work offers an objective image of the personality and work of Abu l-'Alā' Zuhr (m. 525/1131), an author of significant medical studies of a scientific character, and collector of an extensive work on medical rituals based on spells and charms he never brought himself to put in practice but that have unfairly branded his personality with a negative tinge. Together with a preliminary study of the genre in which this work may be classified, we are also presenting the overall characteristics of Kitab al-Jawass and a listing of the epigraphs of all its contents. PMID:11640386

  7. A cluster of cutaneous leishmaniasis associated with human smuggling.

    PubMed

    Cannella, Anthony P; Nguyen, Bichchau M; Piggott, Caroline D; Lee, Robert A; Vinetz, Joseph M; Mehta, Sanjay R

    2011-06-01

    Cutaneous leishmaniasis (CL) is rarely seen in the United States, and the social and geographic context of the infection can be a key to its diagnosis and management. Four Somali and one Ethiopian, in U.S. Border Patrol custody, came to the United States by the same human trafficking route: Djibouti to Dubai to Moscow to Havana to Quito; and then by ground by Columbia/Panama to the United States-Mexico border where they were detained. Although traveling at different times, all five patients simultaneously presented to our institution with chronic ulcerative skin lesions at different sites and stages of evolution. Culture of biopsy specimens grew Leishmania panamensis. Soon thereafter, three individuals from East Africa traveling the identical route presented with L. panamensis CL to physicians in Tacoma, WA. We document here the association of a human trafficking route and new world CL. Clinicians and public health officials should be aware of this emerging infectious disease risk. PMID:21633017

  8. The story of DB4GeO - A service-based geo-database architecture to support multi-dimensional data analysis and visualization

    NASA Astrophysics Data System (ADS)

    Breunig, Martin; Kuper, Paul V.; Butwilowski, Edgar; Thomsen, Andreas; Jahn, Markus; Dittrich, André; Al-Doori, Mulhim; Golovko, Darya; Menninghaus, Mathias

    2016-07-01

    Multi-dimensional data analysis and visualization need efficient data handling to archive original data, to reproduce results on large data sets, and to retrieve space and time partitions just in time. This article tells the story of more than twenty years research resulting in the development of DB4GeO, a web service-based geo-database architecture for geo-objects to support the data handling of 3D/4D geo-applications. Starting from the roots and lessons learned, the concepts and implementation of DB4GeO are described in detail. Furthermore, experiences and extensions to DB4GeO are presented. Finally, conclusions and an outlook on further research also considering 3D/4D geo-applications for DB4GeO in the context of Dubai 2020 are given.

  9. Another slow year

    SciTech Connect

    Not Available

    1987-08-01

    This article is a review of the petroleum activity in the Middle East. The article is accompanied by a detailed color map showing the activity in the area. Highlights of the article include the fact that Saudi Arabia's drilling and development activity has sunk to its lowest level in many years. The article also points out that discoveries are increasing production in North and South Yemen as well as in Syria. The article also highlights the fact that Qatar is beginning work on its massive North gas field in the Gulf. Also attention is paid to the effects of the Iranian and Iraq war on each other's oil and gas activities. The article also mentions the drilling activity of Dubai and Oman.

  10. Mubarek gas pipeline tribute to team effort

    SciTech Connect

    Reggio, R.; Haun, R.

    1993-09-01

    This paper reviews the engineering and design work along with the installation procedures for a Persian Gulf natural gas pipeline. OPMI Ltd., a joint venture of Offshore Pipelines, Inc., Houston, and Maritime Industrial Services Co., Ltd., United Arab Emirates (UAE), successfully completed this 57.4 mile, 16-inch gas export pipeline for Consolidated Transmissions Inc. The pipeline begins at a platform in the Mubarek field offshore Sharjah, UAE, and runs to a beach termination at the Dugas treatment plant, Jebel Ali, Dubai. The paper describes the site preparation required for installation of the pipeline along with the specific design of the pipeline itself to deal with corrosion, welding processes, condensate dropout, and temperature gradients.

  11. Saudis map $450 million gulf spill cleanup

    SciTech Connect

    Not Available

    1991-11-18

    This paper reports on Saudi Arabia which has earmarked about $450 million to clean up Persian Gulf beaches polluted by history's worst oil spills, created during the Persian Gulf crisis. Details of the proposed cleanup measures were outlined by Saudi environmental officials at a seminar on the environment in Dubai, OPEC News Agency reported. The seminar was sponsored by the Gulf Area Oil Companies Mutual Aid Organization, an environmental cooperative agency set up by Persian Gulf governments. Meantime, a Saudi government report has outlined early efforts designed to contain the massive oil spills that hit the Saudi coast before oil could contaminate water intakes at the huge desalination plants serving Riyadh and cooling water facilities at Al Jubail.

  12. Verification of ECMWF, GFS and WRF forecast in coastal desert region of Middle East

    NASA Astrophysics Data System (ADS)

    Nechaj, Pavol; Bartoková, Ivana

    2014-05-01

    Forecast skill of different models over Middle East region is presented. ECMWF has 12.5 km resolution, while WRF with 16 km and nested 5 km grid is initialized by GFS. The comparison encompasses first half of year 2012 and 48-72 hours forecasts, which are evaluated by standard scores Bias, Mean Absolute Error (MAE) and Root Mean Square Error (RMSE). In Dubai Emirate, the temperature RMSE of ECMWF is higher by 1.5 deg. C on average. As far as the desert terrain is flat and the station is 100km form the coast, the reason is not straightforward result of better resolution. More precise capturing of the diurnal variation especially the sea breeze phenomenon seems of higher importance. 9 other stations were examined.

  13. Megastructures: Heating/cooling/saving energy

    SciTech Connect

    Stein, H.L.

    1982-11-01

    Examined are methods to reduce the energy costs of modifying outdoor air brought into an office building's HVAC system. Minimizing the amount of outdoor air brought into the building or, as an alternative, using an economizer cycle is discussed. Cautions that care must be taken when specifying a VAV (variable air-volume) system to ensure that adequate airflow, air changes and fresh air are supplied at low-load conditions. Describes water-to-water heat pumps that can reject heat from the building's interior to a cooling tower, use it to help warm domestic water, or transfer it to perimeter circuits when it is needed. Suggests that high heat-load office equipment (e.g. computers) should have their own separate cooling systems. Gives the Tower of the Dubai International Trade Center (Arabian Gulf) as an example of air conditioning systems.

  14. Development and testing of new offshore cathodic protection criteria

    SciTech Connect

    Evans, S.

    1986-05-01

    New sacrificial anode protection criteria developed and tested by Dubai Petroleum Co. (DPC) resulted in a 40% decrease in anode weight as compared to that required by conventionally accepted design. Derivation of the criteria is based on an analysis of extensive field results of potential surveys of seven DPC platforms that had conventional sacrificial anode protection systems. It was found that an initial platform current density of 29+.2 x 10/sup -3/A/sq ft (310+.20mA/m/sup 2/) of area exposed to seawater resulted in polarization of the platform to -1 V with respect to the silver/silver-chloride reference electrode. As a consequence of this initial polarization, the electric current requirement for protection is reduced significantly. The new criteria were used in the design of Platform JJ, which was installed in September 1982. Field results that include periodic potential surveys of Platform JJ are presented and discussed.

  15. Implementing vertical and horizontal engineering students' integration and assessment of consequence academic achievement

    NASA Astrophysics Data System (ADS)

    Al-Zubaidy, Sarim; Abdulaziz, Nidhal; Dashtpour, Reza

    2012-08-01

    Recent scholarship references indicate that integration of the student body can result in an enhanced learning experience for students and also greater satisfaction. This paper reports the results of a case study whereby mechanical engineering students studying at a newly established branch campus in Dubai of a British university were exposed to vertical and horizontal integration. Different activities have been embedded to ensure that students integrated and worked together with their peers and colleagues at different levels. The implemented processes and practices led to improved academic achievements, which were better than those of a similar cohort of students where no effort had been made to integrate. The analysis revealed that cooperative learning and the degree of academic support provided by teachers are positively and directly correlated with academic as well as the students' own sense of personal achievement. The results are discussed in light of previous research and with reference to the cultural context of the study.

  16. Genomics into Healthcare: The 5th Pan Arab Human Genetics Conference and 2013 Golden Helix Symposium

    PubMed Central

    Fortina, Paolo; AlKhaja, Najib; Al Ali, Mahmoud Taleb; Hamzeh, Abdul Rezzak; Nair, Pratibha; Innocenti, Federico; Patrinos, George P.; Kricka, Larry J.

    2014-01-01

    The joint 5th Pan Arab Human Genetics conference and 2013 Golden Helix Symposium, “Genomics into Healthcare” was coorganized by the Center for Arab Genomic Studies (http://www.cags.org.ae) in collaboration with the Golden Helix Foundation (http://www.goldenhelix.org) in Dubai, United Arab Emirates from 17 to 19 November, 2013. The meeting was attended by over 900 participants, doctors and biomedical students from over 50 countries and was organized into a series of nine themed sessions that covered cancer genomics and epigenetics, genomic and epigenetic studies, genomics of blood and metabolic disorders, cytogenetic diagnosis and molecular profiling, next-generation sequencing, consanguinity and hereditary diseases, clinical genomics, clinical applications of pharmacogenomics, and genomics in public health. PMID:24526565

  17. Ensuring IT service continuity in the face of increasing threats.

    PubMed

    Nair, Vishwanath

    2014-01-01

    How is IT service continuity related to business continuity management? Is it just a glorified disaster recovery procedure? Will IT service continuity help increase the assurance of IT services from the business owner to the customer? This paper is an attempt at answering these and many such questions. It is presented as a case study of IT service continuity management implementation at Emirates Group IT, Dubai. It takes the reader through the need for the process as felt by the business, through the learning acquired during implementation, to the practices deployed for managing the process on an ongoing basis. It provides a detailed view of the kind of pitfalls that could be encountered during implementation of the IT service continuity management process in a large-scale enterprise. PMID:24854729

  18. Health warning labelling practices on narghile (shisha, hookah) waterpipe tobacco products and related accessories

    PubMed Central

    Khalil, Joanna

    2010-01-01

    Background Waterpipe tobacco smoking prevalence is increasing around the globe despite current evidence that smoke emissions are toxic and contain carcinogenic compounds. Objective To evaluate current health warning labelling practices on waterpipe tobacco products and related accessories. Methods All waterpipe tobacco products, as well as waterpipe accessories, were purchased from Lebanon and a convenience sample was obtained from Dubai (United Arab Emirates), Palestine, Syria, Jordan, Bahrain, Canada, Germany and South Africa. Findings Of the total number of waterpipe tobacco products collected from Lebanon, the majority had textual health warning labels covering on average only 3.5% of total surface area of the package. Misleading descriptors were commonplace on waterpipe tobacco packages and related accessories. Conclusions There are no WHO FCTC compliant waterpipe-specific health warning labels on waterpipe tobacco products and related accessories. Introducing health warnings on waterpipe tobacco products and accessories will probably have worldwide public health benefits. PMID:20501497

  19. Assessment of organic pollutants in coastal sediments, UAE

    NASA Astrophysics Data System (ADS)

    Abdel Gawad, Esam A.; Al Azab, Mohamed; Lotfy, M. M.

    2008-05-01

    Twenty-five stations were selected along the UAE coastal region to delineate the distribution and to determine the source of total petroleum hydrocarbon (TPH), total organic carbon (TOC), total Kjeldhal nitrogen (TKN), polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). The concentrations of TPH ranged between 46 and 223 mg/kg and the level of TOC was in the range from 0.044 to 17.8 wt%, while TPAHs occupied the range of 5-102.2 μg/kg. On the other hand, TPCBs showed values between 60 and 205 μg/kg and TKN ranged from 104 to 1,073 mg/kg. The present study shows that the distribution of organic compounds in UAE sediments were within safe limits comparing with previous studies. The present study revealed that TOC can be used as an indicator of oil pollution in heavily oiled sediments. The highest values of TOC, TPH, TPAHs and TPCBs related to the stations covered in fine sand due to adsorption properties and the large surface areas of the grains. The evaporation of low-boiling point compounds from surface layers leads to the enrichment of sediments with a thick residual. Al Sharjah-1 exhibited the highest values of TPH and TOC at Ras Al-Khaima-5, Umm Al-Quwen-1 and Dubai-1, while the highest values of TPAHs were at KhorFakkan-9, the highest value of TPCBs was at Ajman-2, and the highest values of TKN were at KhorFakkan-1, KhorFakkan-6 and Dubai-1.

  20. Cross well seismic reservoir characterization

    SciTech Connect

    Sheline, H.E.

    1995-08-01

    A striking example of how Cross Well Seismic reflection data can help characterize a reservoir, has resulted from an ongoing Multi-Discipline study of the carbonate Mishrif reservoir offshore Dubai, U.A.E. Because the study objectives include a more detailed description of intra reservoir structure and layering, Dubai Petroleum Company (DPC) analyzed the feasibility of Cross Well Seismic (CWS) and decided to acquire two surveys between three wells 337 to 523 feet apart. DPC has concluded that CWS can be cost effectively acquired offshore, in a Carbonate reservoir; as well as processed and interpreted. However, generally it is not often easy to acquire cross well seismic when and where it will be most useful. A CWS survey can provide multiple images such as a velocity Tomogram, P-wave reflections, and S-wave reflections. To date, Tomograms and P-wave reflections have been produced, and the reflection data has proven to be the most useful for reservoir characterization. Cross Well Seismic Reflection data have provided a level of vertical seismic reflection resolution of around 2 feet, which is more than 10 times better than surface seismic data (2D or 3D). The increase in vertical resolution has provided important detailed information about the reservoir, it`s continuity/heterogeneity; it`s detailed structure, stratigraphy and layering; and definition of any faults with more than 2 feet of offset. The CWS has shown detailed intra Mishrif reflectors. These reflectors have verified or changed detailed correlations between well bores, and show significant intra Mishrif thinning. These reflectors imply time stratigraphic layering which is consistent with tracer study results and regional sequence stratigraphy. This new data will be used to improve the reservoir model description.