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Sample records for malykh doz ioniziruyushchej

  1. Passive seismic tomography application for cave monitoring in DOZ underground mine PT. Freeport Indonesia

    NASA Astrophysics Data System (ADS)

    Nurhandoko, Bagus Endar B.; Wely, Woen; Setiadi, Herlan; Riyanto, Erwin

    2015-04-01

    It is already known that tomography has a great impact for analyzing and mapping unknown objects based on inversion, travel time as well as waveform inversion. Therefore, tomography has used in wide area, not only in medical but also in petroleum as well as mining. Recently, tomography method is being applied in several mining industries. A case study of tomography imaging has been carried out in DOZ ( Deep Ore Zone ) block caving mine, Tembagapura, Papua. Many researchers are undergoing to investigate the properties of DOZ cave not only outside but also inside which is unknown. Tomography takes a part for determining this objective.The sources are natural from the seismic events that caused by mining induced seismicity and rocks deformation activity, therefore it is called as passive seismic. These microseismic travel time data are processed by Simultaneous Iterative Reconstruction Technique (SIRT). The result of the inversion can be used for DOZ cave monitoring. These information must be used for identifying weak zone inside the cave. In addition, these results of tomography can be used to determine DOZ and cave information to support mine activity in PT. Freeport Indonesia.

  2. Passive seismic tomography application for cave monitoring in DOZ underground mine PT. Freeport Indonesia

    SciTech Connect

    Nurhandoko, Bagus Endar B.; Wely, Woen; Setiadi, Herlan; Riyanto, Erwin

    2015-04-16

    It is already known that tomography has a great impact for analyzing and mapping unknown objects based on inversion, travel time as well as waveform inversion. Therefore, tomography has used in wide area, not only in medical but also in petroleum as well as mining. Recently, tomography method is being applied in several mining industries. A case study of tomography imaging has been carried out in DOZ ( Deep Ore Zone ) block caving mine, Tembagapura, Papua. Many researchers are undergoing to investigate the properties of DOZ cave not only outside but also inside which is unknown. Tomography takes a part for determining this objective.The sources are natural from the seismic events that caused by mining induced seismicity and rocks deformation activity, therefore it is called as passive seismic. These microseismic travel time data are processed by Simultaneous Iterative Reconstruction Technique (SIRT). The result of the inversion can be used for DOZ cave monitoring. These information must be used for identifying weak zone inside the cave. In addition, these results of tomography can be used to determine DOZ and cave information to support mine activity in PT. Freeport Indonesia.

  3. Rapid Semi-Quantitative Surface Mapping of Airborne-Dispersed Chemicals Using Mass Spectrometry

    EPA Science Inventory

    Chemicals can be dispersed accidentally, deliberately, or by weather-related events. Rapid mapping of contaminant distributions is necessary to assess exposure risks and to plan remediation, when needed. Ten pulverized aspirin or NoDozTM tablets containing caffeine wer...

  4. Panafrican basement and Mesozoic gabbro in the Zagros orogenic belt in the Dorud-Azna region (NW Iran): Laser-ablation ICP-MS zircon ages and geochemistry

    NASA Astrophysics Data System (ADS)

    Shakerardakani, Farzaneh; Neubauer, Franz; Masoudi, Fariborz; Mehrabi, Behzad; Liu, Xiaoming; Dong, Yunpeng; Mohajjel, Mohammad; Monfaredi, Behzad; Friedl, Gertrude

    2015-04-01

    The Dorud-Azna region of the Sanandaj-Sirjan metamorphic zone (SSMZ) in NW Iran is part of the Zagros orogenic belt and exposes an amphibolite-grade metamorphic succession of mixed continental (e.g., the granitic Galeh-Doz orthogneiss) and oceanic or rift (e.g., various amphibolites) origin, which is intruded by the Darijune gabbro. Laser-ablation ICP-MS U-Pb zircon ages of 608 ± 18 Ma and 588 ± 41 Ma of the granitic Galeh-Doz orthogneiss indicate a Panafrican basement similar to that of the Yazd block of Central Iran. We therefore interpret this part of the SSMZ to represent a previously subducted part of the Panafrican basement of the Iranian microcontinent. Based on geochemistry, amphibolites and metagabbros from the Amphibolite unit representially potentially the cover on the Panafrican Galeh-Doz orthogneiss are interpreted to have their origin in a likely Upper Paleozoic to Mesozoic rift or E-MORB ophiolite succession. One of the metagabbros, here termed Dare-Hedavand metagabbro yield a 206Pb/238U mean age of 314.6 ± 3.7 Ma. Talc-bearing greenschists to epidote amphibolites of the Triassic June complex formed in a similar, but younger environment. Furthermore, the metamorphic complex is intruded by the Darijune gabbro, which yields a mean ICP-MS U-Pb zircon age of 170.2 ± 3.1 Ma. The final stage of likely Jurassic greenschist facies-grade metamorphism postdates the gabbro intrusion. We interpret the Darijune gabbro to have resulted from the initial subduction of Neotethyan oceanic lithosphere in a continental arc setting. The new data combined with data from literature indicate that the SSMZ represents a tectonic element of a mixed continental and oceanic origin, likely accreted to Central Iran during a Jurassic tectonic process. The new data also constrains thick-skinned nappe stacking within the Sanandaj-Sirjan zone.

  5. Effect of fortified complementary food supplementation on child growth in rural Bangladesh: a cluster-randomized trial

    PubMed Central

    Christian, Parul; Shaikh, Saijuddin; Shamim, Abu Ahmed; Mehra, Sucheta; Wu, Lee; Mitra, Maithilee; Ali, Hasmot; Merrill, Rebecca D; Choudhury, Nuzhat; Parveen, Monira; Fuli, Rachel D; Hossain, Md Iqbal; Islam, Md Munirul; Klemm, Rolf; Schulze, Kerry; Labrique, Alain; de Pee, Saskia; Ahmed, Tahmeed; West, Keith P

    2015-01-01

    Background: Growth faltering in the first 2 years of life is high in South Asia where prevalence of stunting is estimated at 40–50%. Although nutrition counselling has shown modest benefits, few intervention trials of food supplementation exist showing improvements in growth and prevention of stunting. Methods: A cluster-randomized controlled trial was conducted in rural Bangladesh to test the effect of two local, ready-to-use foods (chickpea and rice-lentil based) and a fortified blended food (wheat-soy-blend++, WSB++) compared with Plumpy’doz, all with nutrition counselling vs nutrition counselling alone (control) on outcomes of linear growth (length and length-for-age z-score, LAZ), stunting (LAZ < −2), weight-for-length z-score (WLZ) and wasting (WLZ < −2) in children 6–18 months of age. Children (n = 5536) were enrolled at 6 months of age and, in the food groups, provided with one of the allocated supplements daily for a year. Results: Growth deceleration occurred from 6 to 18 months of age but deceleration in LAZ was lower (by 0.02–0.04/month) in the Plumpy’doz (P = 0.02), rice-lentil (< 0.01), and chickpea (< 0.01) groups relative to control, whereas WLZ decline was lower only in Plumpy’doz and chickpea groups. WSB++ did not impact on these outcomes. The prevalence of stunting was 44% at 18 months in the control group, but lower by 5–6% (P ≤ 0.01) in those receiving Plumpy’doz and chickpea. Mean length and LAZ at 18 months were higher by 0.27–0.30 cm and 0.07–0.10 (all P < 0.05), respectively, in all four food groups relative to the control. Conclusions: In rural Bangladesh, small amounts of daily fortified complementary foods, provided for a year in addition to nutrition counselling, modestly increased linear growth and reduced stunting at 18 months of age. PMID:26275453

  6. Revealing the significance and polyphase tectonothermal evolution of a major metamorphic unit in an orogen: the central Sanandaj-Sirjan zone, Zagros Mts., Iran

    NASA Astrophysics Data System (ADS)

    Shakerardakani, Farzaneh; Neubauer, Franz; Genser, Johann; Liu, Xiaoming; Dong, Yunpeng; Monfaredi, Behzad; Benroider, Manfred; Finger, Fritz; Waitzinger, Michael

    2016-04-01

    The Dorud-Azna region in the central Sanandaj-Sirjan metamorphic belt plays a key role in promoting the tectonic evolution of Zagros orogen, within the frame of the Arabia-Eurasia collision zone. From footwall to hangingwall, structural data combined with the U-Pb zircon and extensive 40Ar-39Ar mineral dating survey demonstrate three metamorphosed tectonic units, which include: (1) The Triassic June complex is metamorphosed within greenschist facies conditions, overlain by (2) the amphibolite-grade metamorphic Galeh-Doz orthogneiss, which is intruded by mafic dykes, and (3) the Amphibolite-Metagabbro unit. To the east, these units were intruded by the Jurassic Darijune gabbro. We present U-Pb detrital zircon ages of a garnet-micaschist from the Amphibolite-Metagabbro unit, which yield six distinctive age groups, including a previously unrecognized Late Grenvillian age population at ~0.93 to 0.99 Ga. We speculate that this unique Late Grenvillian group coupled with biogeographic evidence suggests either relationship with the South China craton or to the "Gondwana superfan". The laser ablation ICP-MS U-Pb zircon ages of 608 ± 18 Ma and 588 ± 41 Ma of the granitic Galeh-Doz orthogneiss reveals a Panafrican basement same as known from the Yazd block of Central Iran. Geochemistry and Sr-Nd isotopes of alkaline and subalkaline mafic dykes within the Galeh-Doz orthogneiss show OIB-type to MORB-type and indicate involvement of both depleted and enriched sources for its genesis. The new 40Ar-39Ar amphibole age of ca. 322.2 ± 3.9 Ma from the alkaline mafic dyke implies Carboniferous cooling age after intrusion. The metagabbros (including the Dare-Hedavand metagabbro with a 206Pb/238U age of 314.6 ± 3.7 Ma) and amphibolites with E-MORB geochemical signature of the Amphibolite-Metagabbro unit represent an Upper Paleozoic rift. The geochemical composition of the Triassic greenschist facies metamorphosed June complex, implying formation in a same, but younger tectonic

  7. 10 rules for managing global innovation.

    PubMed

    Wilson, Keeley; Doz, Yves L

    2012-10-01

    More and more companies recognize that their dispersed, global operations are a treasure trove of ideas and capabilities for innovation. But it's proving harder than expected to unearth those ideas or exploit those capabilities. Part of the problem is that companies manage global innovation the same way they manage traditional, single-location projects. Single-location projects draw on a large reservoir of tacit knowledge, shared context, and trust that global projects lack. The management challenge, therefore, is to replicate the positive aspects of colocation while harnessing the opportunities of dispersion. In this article, Insead's Wilson and Doz draw on research into global strategy and innovation to present a set of guidelines for setting up and managing global innovation. They explore in detail the challenges that make global projects inherently different and show how these can be overcome by applying superior project management skills across teams, fostering a strong collaborative culture, and using a robust array of communications tools. PMID:23074868

  8. Mineralogical discrimination of the pleistocene loess/paleosol sections in Srijem and Baranja, Croatia

    NASA Astrophysics Data System (ADS)

    Galović, Lidija; Peh, Zoran

    2016-06-01

    Previous investigations of the mineralogical composition of loess sections (loess, loess-like sediments, paleosols, alluvial intercalations) in the Carpathian Basin have concluded that the Danube River is the dominant control on the loessitic parent material. These investigations also identify a significant role for the Danube's tributaries in creating local variations. The north-south alignment of these sections forms a transect from the central part of the Carpathian Basin to its southern edge. In this work, the mineral origin of loess sediments was identified by using the multivariate statistical method of discriminant function analysis. Two models were constructed based on the modal composition as the suite of predictor (independent) variables: one is using geographic location as the a priori grouping criterion (SECTION); another employing the difference between the sampling media (LITHOLOGY). Both of the examined discriminant models demonstrate the existence of the mixing zones. The Erdut section is a clear mixture of the mineralogies at the other studied locations, while loesses appear generally intermediate in mineralogy between alluvium and paleosol. The main rationale for the observed difference in modal composition between the Šarengrad and other analyzed sections is the proximity of the Šarengrad section to the Sava River floodplain and Dinaric Ophiolite Zone (DOZ), both important source areas for aeolian sediments in the southern edge of the Carpathian Basin that transport material from the Central Bosnian Mountains unit of DOZ. Chemically, the most resistant heavy minerals together with opaque minerals are exclusively associated with paleosols, being typical products of geochemical pedogenic processes.

  9. Tectonic history of the central Sanandaj-Sirjan zone, Iran: Potentially Permian to Mesozoic polymetamorphism and implications for tectonics of the Sanandaj-Sirjan zone

    NASA Astrophysics Data System (ADS)

    Shakerardakani, Farzaneh; Neubauer, Franz; Genser, Johann; Masoudi, Fariborz; Mehrabi, Behzad; Monfaredi, Behzad; Friedl, Gertrude

    2015-04-01

    The determination of metamorphic conditions and of its age is critical to the understanding of the mountain belt formation as metamorphism is an expression of subduction or plate collision. In this study, we report the metamorphic evolution, preliminary Ar-Ar mineral ages and structures from two amphibolite-grade metamorphic units of the Dorud-Azna region in the central part of Sanandaj-Sirjan metamorphic zone and discuss the tectonic implications. The Sanandaj-Sirjan metamorphic zone is nearly parallel to the Main Zagros Reverse Fault and is located above the Neotethyan ophiolitic suture. Structural studies and our previous U-Pb zircon dating work demonstrated that the area comprise three metamorphosed tectonic units, which are from footwall to hangingwall: (1) The Triassic June complex is metamorphosed within greenschist facies conditions, overlain by (2) the amphibolite-grade metamorphic Panafrican Galeh-Doz orthogneiss, which is intruded by some mafic dykes, and (3) the Amphibolite-Metagabbro unit with Carboniferous metagabbro bodies. To the East, the Darijune gabbro intruded within the Permian Kuh-e-June Marble and the mentioned two other metamorphic units. The granitic Galeh-Doz orthogneiss displays two different P-T conditions. The best average estimates for the magmatic mineral assemblage (plagioclase core + amphibole core + K-feldspar + quartz) range between 675 and 710 °C and 3.7 and 4.2 kbar, whilst the temperature of 530 and 625 °C and pressure of 0.7 to 2.8 kbar is consistent with the first metamorphic mineral assemblage. Ar-Ar amphibole ages from the Galeh-Doz orthogneiss give plateau-like steps between 260 and 270 Ma. We interpret this age as the cooling age after an amphibolite facies-grade metamorphism. An amphibole from relatively well preserved dyke within the Galeh-Doz orthogneiss gives staircase pattern with an age of 261 ± 3 Ma in the first step considered similarly as a metamorphic overprint in metamorphic rocks, whereas plateau-like steps

  10. Zircon geochronology and geochemistry of Dorud-Azna basement and gabbroic rocks, NW Iran: evidence of Panafrican basement and oceanic units in the Zagros orogenic belt

    NASA Astrophysics Data System (ADS)

    Shakerardakani, Farzaneh; Neubauer, Franz; Masoudi, Fariborz; Mehrabi, Behzad; Liu, Xiaomong; Dong, Yunpeng; Mohajjel, Mohammad; Monfaredi, Behzad; Friedl, Gertrude

    2014-05-01

    The Dorud-Azna basement, exposed in the Sanandaj-Sirjan metamorphic zone (SSMZ) in western Iran, is composed of both continental (granitic Galeh-Doz orthogneiss) and oceanic units (various amphibolites and metagabbros) that experienced a complex history of deformation and polyphase greenschist- to amphibolite-facies metamorphism. These units are intruded by the Darijune gabbro. The Sanandaj-Sirjan zone is part of Zagros orogenic belt. The SSMZ formed during continental collision between the African-Arabian continent and the Iranian microcontinent. A combined study of laser-ablation ICP-MS U-Pb zircon ages from granitic orthogneiss and gabbroic rocks and their geochemical characteristics as well as the geochemistry of various amphibolites and metagabbros of the Dorud-Azna basement provides new constraints on the crustal evolution of this part of SSMZ. The U-Pb zircon ages of 608±18 Ma and 588±41 Ma of the granitic Galeh-Doz orthogneiss indicate the presence of a Panafrican basement with Gondwanan affiliation in the central part of the SSMZ close to the Main Zagros thrust, which is similar to Central Iran and the Alborz Mountains. We conclude that this Panafrican basement in the Zagros belt is part of Iranian microcontinent, which was subducted and subsequently exhumed following subduction of the Paleotethys Ocean. Geochemically, undated amphibolites and metagabbros show sub-alkaline to alkaline basaltic compositions of tholeiitic affinity. These metamorphic rocks originated from a MORB mantle source and their age must be older than a first stage of metamorphism in the SSMZ at around 180 Ma. Therefore, these undated amphibolites and metagabbros are interpreted as the oceanic basement and to have its origin likely in an Upper Paleozoic to Mesozoic N-MORB ophiolite. Finally, in the eastern part of the Dorud-Azna region, the post-metamorphic Darijune gabbro emplaced within the metamorphic complex testified by a U-Pb zircon mean age of 170.2 ± 3.1 Ma. The

  11. Awareness and use of caffeine by athletes competing at the 2005 Ironman Triathlon World Championships.

    PubMed

    Desbrow, Ben; Leveritt, Michael

    2006-10-01

    This study assessed the knowledge, prevalence, and quantity of caffeine use by athletes competing at the 2005 Ironman Triathlon World Championships. Caffeine-related questionnaires were self-administered to 140 (105 male and 35 female, 40.3 +/- 10.7 y) athletes representing 16 countries. Fifty of these athletes further consented to immediate post-race blood samples for analysis of plasma caffeine and paraxanthine using high-performance liquid chromatography (HPLC). Seventy-two percent of 70 athletes correctly identified caffeine as being an unrestricted substance in triathlon. The majority of athletes [125 (89%)] were planning on using a caffeinated substance immediately prior to or throughout the race. Cola drinks (78%), caffeinated gels (42%), coffee (usually pre-race) (37%), energy drinks (13%), and NoDoz tablets (9%) were the most popular caffeinated choices. Mean +/- standard deviation (and range) post race plasma caffeine and paraxanthine levels were 22.3 +/- 20 micromol/L (1.7 to 98.4) and 9.4 +/- 6 micromol/L (1.8 to 28.9), respectively. Seven athletes (14%) finished with plasma caffeine levels > or = 40 micromol/L. Plasma values from elite athletes did not differ from age group competitors. Despite the prevalence of its consumption and the training experience of this athletic group, over one quarter of athletes remained either confused or uninformed about caffeine's legality. Levels of plasma caffeine taken immediately post race indicated that athletes typically finish with quantities of caffeine that have been shown to improve endurance performance (i.e., approximately 20 micromol/L or a dose of > or = 3 mg/kg body weight). PMID:17240785

  12. [On the 100th anniversary of the Gynecology-Obstetrical Clinic in Sarajevo].

    PubMed

    Simić, S

    1994-01-01

    In the second half of the 19th century the Viennese Gynecology-Obstetrics Clinics with professors Semmelweiss, Schauta, Wertheim created the synecology and obstetrics science in the scientific and professional world. Doz. Dr Otto Weiss was the first chief of the Gynecology and Obstetrics Department of the Regional Hospital (Landesspital) in Sarajevo. Direct and energetic in his manners, he introduced the Viennese clinics protocols in the diagnostic and therapeutic procedures. The well kept diseases histories are undoubtedly, of a high world level of the gynecological doctrine. Even now, in the library, one can find the well bound journals: Monatsschrift fur Geburtskunde, Archiv für Gynekologie (1869), American Journal of Obstetrics (1879). Dr Weiss had died in 1900, 15 chief doctors (primarius) applied for the job. All of them belonged to the clinics in Vienna, a fact speaking in favour of the attractiveness of the Department. In addition to the professional qualities the chief should master one of the Slavic languages. It was necessary, because, simultaneously, the midwives' school was organized to give a proper education, primarily to decrease mothers' mortality in Bosnia and Herzegovina. Later, the Department was headed by Dr Mikucki, Dr Bokonjić and Dr Bazala. The Gynecology Obstetrics Clinic was established in April, 1947, headed by Prof. Szabo. In April, 1960, the Gynecology Department was joined to the Clinic, had 320 beds. Afterwards, the Clinic was headed by Prof. Berić, Prof. Knezević, Prof. Simić and Prof. Idrizbegović. The Clinic with the Obstetrics (Secondary) School became a centre of staff education (various types)--Internship, specialization, postgraduate level, doctorship of the gynecological perinatal service of the Republic.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:7752706

  13. The dual-acting H3 receptor antagonist and AChE inhibitor UW-MD-71 dose-dependently enhances memory retrieval and reverses dizocilpine-induced memory impairment in rats.

    PubMed

    Khan, Nadia; Saad, Ali; Nurulain, Syed M; Darras, Fouad H; Decker, Michael; Sadek, Bassem

    2016-01-15

    Both the histamine H3 receptor (H3R) and acetylcholine esterase (AChE) are involved in the regulation of release and metabolism of acetylcholine and several other central neurotransmitters. Therefore, dual-active H3R antagonists and AChE inhibitors (AChEIs) have shown in several studies to hold promise to treat cognitive disorders like Alzheimer's disease (AD). The novel dual-acting H3R antagonist and AChEI 7-(3-(piperidin-1-yl)propoxy)-1,2,3,9-tetrahydropyrrolo[2,1-b]quinazoline (UW-MD-71) with excellent selectivity profiles over both the three other HRs as well as the AChE's isoenzyme butyrylcholinesterase (BChE) shows high and balanced in vitro affinities at both H3R and AChE with IC50 of 33.9nM and hH3R antagonism with Ki of 76.2nM, respectively. In the present study, the effects of UW-MD-71 (1.25-5mg/kg, i.p.) on acquisition, consolidation, and retrieval in a one-trial inhibitory avoidance task in male rats were investigated applying donepezil (DOZ) and pitolisant (PIT) as reference drugs. Furthermore, the effects of UW-MD-71 on memory deficits induced by the non-competitive N-methyl-d-aspartate (NMDA) antagonist dizocilpine (DIZ) were tested. Our results indicate that administration of UW-MD-71 before the test session dose-dependently increased performance and enhanced procognitive effect on retrieval. However neither pre- nor post-training acute systemic administration of UW-MD-71 facilitated acquisition or consolidation. More importantly, UW-MD-71 (2.5mg/kg, i.p.) ameliorated the DIZ-induced amnesic effects. Furthermore, the procognitive activity of UW-MD-71 in retrieval was completely reversed and partly abrogated in DIZ-induced amnesia when rats were pretreated with the centrally-acting H2R antagonist zolantidine (ZOL), but not with the CNS penetrant H1R antagonist pyrilamine (PYR). These results demonstrate the procognitive effects of UW-MD-71 in two in vivo memory models, and are to our knowledge the first demonstration in vivo that a potent dual