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Sample records for aga khan university

  1. Students’ perception of educational environment at Aga Khan University Medical College, Karachi, Pakistan

    PubMed Central

    Rehman, Rehana; Ghias, Kulsoom; Fatima, Syeda Sadia; Hussain, Mehwish; Alam, Faiza

    2016-01-01

    Objective: To assess educational environment in Aga Khan University Medical College (AKUMC) by Dundee Ready Educational Environmental Measure (DREEM) scale. Methods: A cross-sectional survey of students at the AKUMC with simple random sampling was carried out from June 2014 till March 2015. Responses in five subscales were used to calculate DREEM scores. Results: The average DREEM score was 125.77±16.8 with a reliability of 91.3%. With regards to subscales, on the 12-item students’ perceptions of learning (PoL) subscale, the maximum score was 48; 11 items of students’ perceptions of teachers (PoT) had a maximum score of 44; students’ academic self-perceptions (ASP) identified by 8 items showed maximum score of 32; students’ perceptions of atmosphere (PoA) with 12 items obtained maximum score 48 and students’ social self-perceptions (SSP) subscale of 7 items had a maximum score of 28. Conclusion: Students perceived a positive learning environment at AKUMC Karachi. PMID:27375721

  2. Increasing transcultural awareness: the McMaster-Aga Khan-CIDA Project workshop model.

    PubMed

    Smith, S E

    1997-01-01

    McMaster-Aga Khan-CIDA Project personnel at McMaster University School of Nursing over a period of four years designed and conducted eight one-day introductory workshops for nurses, faculty, staff, host families, and others involved with Pakistani nurses and Lady Health Visitors studying in Canada. The workshops (entitled Increasing Intercultural Awareness) assisted the Canadian and international participants to improve their awareness and knowledge of transcultural communication in preparation for working and socializing together. Using a participatory and active-learning approach, the workshop method introduced participants to transcultural communication; emphasized appreciation of cultural values, similarities and differences; and provided country-specific information on Pakistan. This article outlines the workshop design and rationale and describes specific examples of the transcultural nursing principles, practices, and teaching activities included in the one-day event. PMID:9369662

  3. The School Improvement Programme of the Aga Khan Education Service, Kenya at Kisumu, Western Kenya: Evaluation Report.

    ERIC Educational Resources Information Center

    Capper, Joanne; Nderitu, Shelomith; Ogula, Paul

    This evaluation study was conducted at the behest of the Aga Khan Foundation (AKF) and the Institute for Policy Reform (IPR), working under contract with United States Agency for International Development. AKF's primary concern was to evaluate the effectiveness, cost-effectiveness, and the likelihood of sustainability of the School Improvement…

  4. Predictors of hospital stay and mortality in dengue virus infection-experience from Aga Khan University Hospital Pakistan

    PubMed Central

    2014-01-01

    Background Dengue virus infection (DVI) is very common infection. There is scarcity of data on factor associated with increased hospital stay and mortality in dengue virus infection (DVI). This study was done to know about factors associated with increased hospital stay and mortality in patients admitted with DVI. Results Out of 532 patients, two third (72.6%) had stay ≤3 days while one third (27.4%) had stay greater than 3 days. The mean length of hospital stay was 3.46 ± 3.45 days. Factors associated with increased hospital stay (>3 days) included AKI (acute kidney injury) (Odd ratio 2.98; 95% CI 1.66-5.34), prolonged prothrombin time (Odd ratio 2.03; 95% CI 1.07-3.84), prolonged activated partial thromboplastin time (aPTT) (Odd ratio 1.80; CI 95% 1.15-2.83) and increased age of > 41.10 years (Odd ratio 1.03; CI 95% 1.01-1.04).Mortality was 1.5%. High mortality was found in those with AKI (P <0.01), dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) (P <0.001), respiratory failure (P0.01), prolong PT (P 0.001), prolong aPTT (P0.01) and increased hospital stay (P0.04). Conclusion Increasing age, coagulopathy and acute kidney injury in patients with DVI is associated with increased hospital stay. Morality was more in patients with AKI, DHF and DSS, respiratory failure, coagulopathy and these patients had more prolonged hospitalization. PMID:25064632

  5. Appropriate for gestational age (AGA)

    MedlinePlus

    Fetal age; Gestation; Development - AGA; Growth - AGA; Neonatal care - AGA; Newborn care - AGA ... Gestational age is the common term used during pregnancy to describe how far along the pregnancy is. It is ...

  6. Reimagining Khan Analytics for Student Coaches

    ERIC Educational Resources Information Center

    Cunningham, Jim

    2015-01-01

    In this paper, I describe preliminary work on a new research project in learning analytics at Arizona State University. In conjunction with an innovative remedial mathematics course using Khan Academy and student coaches, this study seeks to measure the effectiveness of visualized data in assisting student coaches as they help remedial math…

  7. [A search for a "Genghis Khan chromosome"].

    PubMed

    Zakharov, I A

    2010-09-01

    Zerial et al. (2003) have shown that a special variant of the Y chromosome, characterized by a set of microsatellite markers occurs at high frequency in the number of human populations of Central Asia. This variant was attributed to the descendants of Genghis Khan and its accumulation, to social selection. A search of this Y chromosome variant in Russian populations was conducted. The "Genghis Khan Y chromosome" has been found among Altaians, Altai Kazakhs, Buryats, Kalmyks, Nogaits, and Tuvinians. Its highest frequency (13.8%) was observed in Nogaits. In the examined cases the carriers of the "Genghis Khan Y chromosome" possessed no information on their origin.

  8. Quality improvement initiatives by Aga Khan Health Service in the mountains of northern Pakistan.

    PubMed

    Jassani, Kashif; Essani, Rozina Roshan Ali; Abbas, Nadeem; Ahmed, Rashida

    2015-01-01

    Improving health care quality in a resource constraint environment in an emerging economy that is in a hard-to-reach geographic terrain can become a challenge especially when it has to follow the international standard which AKHS, P envisions to implement across the nation in all of its health facilities. Healthcare of the nation is a responsibility which is shouldered by both the government and the private sector. Private-sector, however, remains under pressure as its resource size is limited and it remains subject to stringent regulation and quality control requirements regardless of whether it is in the remotest corner of the country where proper land routes are either lacking or not safe. This article shares the unique experience of AKHS, P in achieving ISO 9001:2008 International Quality Management System Certification. Particularly at one of the "world's highest valleys -situated at Gilgit Baltistan at an altitude of 13,083 ft. above sea level in Northern Pakistan. The experience was unique in terms of demonstrating and recording how a quality management system can be implemented in one of the most difficult to reach areas where compliance to international quality standards was previously unthinkable.

  9. Flip or Flop: Are Math Teachers Using Khan Academy as Envisioned by Sal Khan?

    ERIC Educational Resources Information Center

    Cargile, Lori A.; Harkness, Shelly Sheats

    2014-01-01

    Khan Academy (KA) is a free web-based intelligent tutor, which has been featured in countless media outlets for its potential to change mathematics instruction. The founder and executive director, Salman Khan, recommends that KA be used to personalize instruction, freeing up class time for engaging high yield activities like student discourse and…

  10. A developing country's university oriented toward strengthening health systems: challenges and results.

    PubMed Central

    Bryant, J H; Marsh, D R; Khan, K S; D'Souza, R; Husein, K; Aslam, A; Qureshi, A F; deWit, V; Harnar, R M

    1993-01-01

    OBJECTIVES. The Aga Khan University in Karachi has a mission to educate leaders and to contribute to the development of health systems for Pakistan amid challenges of scarcity and complexity. METHODS. Its key activities are (1) to design and test urban and rural health system prototypes, (2) to develop faculty in medical and nursing postgraduate community health sciences programs, and (3) to design and implement community-based undergraduate medical and nursing curricula. RESULTS. The university has developed equity-based, cost-effective primary health care prototypes in Karachi slums. With government counterparts it has tested village-, facility-, and district-level interventions in a poor rural district. Federal policymakers have taken models from each for widespread replication. The university is training 49 medical and 19 nursing faculty for postgraduate programs in community health sciences. Most faculty retain institutional leadership positions, including teaching community-based, problem-solving, community health sciences as 20% of the medical and nursing undergraduate curriculum. CONCLUSIONS. The mission and experience of the Aga Khan University in population-based health systems design and health sciences education can guide universities in both developing and developed countries. PMID:8238674

  11. Toward a One-World Schoolhouse: Interview with Sal Khan

    ERIC Educational Resources Information Center

    Pinkus, Ari

    2015-01-01

    Ten years ago, Salman Khan, with three degrees from MIT and an MBA from Harvard, agreed to help tutor his cousin Nadia, who was struggling in math. Using Yahoo's Doodle notepad, Khan offered Nadia a sequence of mini lessons designed to scaffold her learning. Over time, other friends and relatives heard about Khan's success and asked for similar…

  12. N-acetylgalatosamine-Mediated Regulation of the aga Operon by AgaR in Streptococcus pneumoniae

    PubMed Central

    Afzal, Muhammad; Shafeeq, Sulman; Ahmed, Hifza; Kuipers, Oscar P.

    2016-01-01

    Here, we analyze the transcriptomic response of Streptococcus pneumoniae D39 to N-acetylgalactosamine (NAGa). Transcriptome comparison of S. pneumoniae D39 grown in NAGaM17 (0.5% NAGa + M17) to that grown in GM17 (0.5% Glucose + M17) revealed the elevated expression of various carbon metabolic genes/operons, including a PTS operon (denoted here as the aga operon), which is putatively involved in NAGa transport and utilization, in the presence of NAGa. We further studied the role of a GntR-family transcriptional regulator (denoted here as AgaR) in the regulation of aga operon. Our transcriptome and RT-PCR data suggest the role of AgaR as a transcriptional repressor of the aga operon. We predicted a 20-bp operator site of AagR (5′-ATAATTAATATAACAACAAA-3′) in the promoter region of the aga operon (PbgaC), which was further verified by mutating the AgaR operator site in the respective promoter. The role of CcpA in the additional regulation of the aga operon was elucidated by further transcriptome analyses and confirmed by quantitative RT-PCR.

  13. N-acetylgalatosamine-Mediated Regulation of the aga Operon by AgaR in Streptococcus pneumoniae

    PubMed Central

    Afzal, Muhammad; Shafeeq, Sulman; Ahmed, Hifza; Kuipers, Oscar P.

    2016-01-01

    Here, we analyze the transcriptomic response of Streptococcus pneumoniae D39 to N-acetylgalactosamine (NAGa). Transcriptome comparison of S. pneumoniae D39 grown in NAGaM17 (0.5% NAGa + M17) to that grown in GM17 (0.5% Glucose + M17) revealed the elevated expression of various carbon metabolic genes/operons, including a PTS operon (denoted here as the aga operon), which is putatively involved in NAGa transport and utilization, in the presence of NAGa. We further studied the role of a GntR-family transcriptional regulator (denoted here as AgaR) in the regulation of aga operon. Our transcriptome and RT-PCR data suggest the role of AgaR as a transcriptional repressor of the aga operon. We predicted a 20-bp operator site of AagR (5′-ATAATTAATATAACAACAAA-3′) in the promoter region of the aga operon (PbgaC), which was further verified by mutating the AgaR operator site in the respective promoter. The role of CcpA in the additional regulation of the aga operon was elucidated by further transcriptome analyses and confirmed by quantitative RT-PCR. PMID:27672623

  14. Disaster drill at a university hospital.

    PubMed

    Rehmani, Rifat

    2005-01-01

    The course of a disaster drill held on 23 October 2001 at Aga Khan University, Karachi is reported. The Hospital Emergency Plan was put to trial on that day. Volunteers were invited to become simulated casualties in the drill. Briefing seminars had been conducted with the key players of the hospital. The scenario was a man-made type disaster. A 747 jumbo jet with 200 passengers had crashed at the end of the runway at Quaid-e-Azam International Airport while taking off in a thunderstorm. Fifty casualties were sent to Emergency Room by ambulance. The Plan was activated and relevant units were mobilized according to the Plan. It took 2 hours to complete the disaster drill. Major difficulties were identified in the operations, communications, staff deployment, and emergency control center. Debriefing sessions reviewed difficulties encountered throughout the drill and the possible remedies. PMID:15816693

  15. Can Khan Move the Bell Curve to the Right?

    ERIC Educational Resources Information Center

    Kronholz, June

    2012-01-01

    More than 1 million people have watched the online video in which Salman Khan--a charming MIT math whiz, Harvard Business School graduate, and former Boston hedge-fund analyst--explains how he began tutoring his cousins in math by posting short lessons for them on YouTube. Other people began watching the lessons and sending Khan adulatory notes.…

  16. Can Khan Move the Bell Curve to the Right?

    ERIC Educational Resources Information Center

    Kronholz, June

    2012-01-01

    This article features Khan Academy which offers an online math program and short video lectures embedded in the "module", or math concept, that fit students' goals. By now, more than 1 million people have watched the online video in which Salman Khan--a charming MIT math whiz, Harvard Business School graduate, and former Boston hedge-fund…

  17. Schools "Flip" for Lesson Model Promoted by Khan Academy

    ERIC Educational Resources Information Center

    Sparks, Sarah D.

    2011-01-01

    The author reports on a "flip model" of instruction that has gotten national media attention lately, thanks to its promotion by Khan Academy, the high-profile nonprofit online-tutoring library created by Salman A. Khan, a Massachusetts Institute of Technology graduate who was looking for a way to help his young relatives with their homework. The…

  18. Commentary: The Khan Academy and the Day-Night Flipped Classroom

    ERIC Educational Resources Information Center

    Parslow, Graham R.

    2012-01-01

    Teaching by night and reflecting on a subject by day is the way that Salman Khan sees education evolving in the age of online lectures. Khan believes he is onto something in what he styles the "flipped classroom." In Khan's view, there is no need for students to be divided into grades by age. Instead, they should learn at their own pace, moving on…

  19. "Kubla Khan" and Its Narratives of Possible Worlds

    ERIC Educational Resources Information Center

    Nayar, Pramod K.

    2013-01-01

    This essay argues that Coleridge's "Kubla Khan" is a poem about narrative and specifically focuses on the narrative construction of possible worlds, or even utopian worlds. It notes two pairs of narratives. In pair one the utopian narrative of the monarch's decree which seeks to build a space of pure pleasure is in opposition to the…

  20. The Perceptions of the Preparedness of Medical Graduates to Take on Internship Responsibilities in Low Resource Hospitals in Kenya

    ERIC Educational Resources Information Center

    Muthaura, Patricia N.; Khamis, Tashmin K.

    2013-01-01

    The Aga Khan University is developing an Undergraduate Medical Education (UGME) curriculum for implementation in East Africa in 2016, which aims to serve the health needs of the populations there. Pilot focus group discussions of recent interns were conducted at the Aga Khan University Hospital, Nairobi to find out: (1) If Kenyan medical students…

  1. Mixing mechanisms in siliciclastic-carbonate successions of Khan Formation (Permian), Central Iran

    NASA Astrophysics Data System (ADS)

    Shadan, Mahdi; Hosseini-Barzi, Mahboubeh

    2010-05-01

    Mixing mechanisms in siliciclastic-carbonate successions of Khan Formation (Permian), Central Iran M. Shadan & M. Hosseini-Barzi Geology Department, Faculty of Earth Science, Shahid Beheshti University, Tehran, Iran shadangeo@gmail.com Mixing mechanisms in siliciclastic-carbonate successions of Khan Formation (Permian) have been studied in two sections (Chahroof with 197 m thick in north and Cheshmeh Bakhshi with 204 m thick in south) along basement Kalmard fault in Posht-e-Badam block, Central Iran. Siliciclastic units are characterized by well sorted, fine to medium grain quartzarenites with laterite interbeds, deposited in shoreline zone (foreshore, upper and lower shoreface) influencing wave and longshore currents. Longshore sands which have been transported along the coast made the sand bars in the shoreface. Further along the coast, returning of these currents as rip currents produced erosive channel inlets and caused to carry fine grain into the deeper regions of the basin. Based on this sedimentary model we introduced longshore currents as a probable agent for mixing, by transporting some volumes of sands into the adjacent carbonate environments. Vertically, clastic units of Khan Formation underlined by carbonate units of a tidal flat and high-energy inner ramp system. Repeating of this pattern produced 3 cycles in each section. Cyclic evolution, in studied sections, is accompanied with discrepancy in erosion and sedimentation. These factors caused to disperse local sub-aerial exposures in successions which are recognizable by laterite and conglomerate interbeds. These horizons of sub-aerial exposures are more often in Chahroof section than in Cheshmeh Bakhshi section and indicate more fluctuations of relative sea level probably due to more local tectonic activity in the northern part of the Kalmard fault than in the southern part of it. Also, thicker siliciclastic units in Chahroof section show higher rate of sediment supply and/or more accommodation space

  2. The Molecular Mechanism of Thermostable α-Galactosidases AgaA and AgaB Explained by X-ray Crystallography and Mutational Studies*

    PubMed Central

    Merceron, Romain; Foucault, Marine; Haser, Richard; Mattes, Ralf; Watzlawick, Hildegard; Gouet, Patrice

    2012-01-01

    The α-galactosidase AgaA from the thermophilic microorganism Geobacillus stearothermophilus has great industrial potential because it is fully active at 338 K against raffinose and can increase the yield of manufactured sucrose. AgaB has lower affinity for its natural substrates but is a powerful tool for the enzymatic synthesis of disaccharides by transglycosylation. These two enzymes have 97% identity and belong to the glycoside hydrolase (GH) family GH36 for which few structures are available. To understand the structural basis underlying the differences between these two enzymes, we determined the crystal structures of AgaA and AgaB by molecular replacement at 3.2- and 1.8 Å-resolution, respectively. We also solved a 2.8-Å structure of the AgaAA355E mutant, which has enzymatic properties similar to those of AgaB. We observe that residue 355 is located 20 Å away from the active site and that the A355E substitution causes structural rearrangements resulting in a significant displacement of the invariant Trp336 at catalytic subsite −1. Hence, the active cleft of AgaA is narrowed in comparison with AgaB, and AgaA is more efficient than AgaB against its natural substrates. The structure of AgaAA355E complexed with 1-deoxygalactonojirimycin reveals an induced fit movement; there is a rupture of the electrostatic interaction between Glu355 and Asn335 and a return of Trp336 to an optimal position for ligand stacking. The structures of two catalytic mutants of AgaAA355E complexed with raffinose and stachyose show that the binding interactions are stronger at subsite −1 to enable the binding of various α-galactosides. PMID:23012371

  3. The molecular mechanism of thermostable α-galactosidases AgaA and AgaB explained by x-ray crystallography and mutational studies.

    PubMed

    Merceron, Romain; Foucault, Marine; Haser, Richard; Mattes, Ralf; Watzlawick, Hildegard; Gouet, Patrice

    2012-11-16

    The α-galactosidase AgaA from the thermophilic microorganism Geobacillus stearothermophilus has great industrial potential because it is fully active at 338 K against raffinose and can increase the yield of manufactured sucrose. AgaB has lower affinity for its natural substrates but is a powerful tool for the enzymatic synthesis of disaccharides by transglycosylation. These two enzymes have 97% identity and belong to the glycoside hydrolase (GH) family GH36 for which few structures are available. To understand the structural basis underlying the differences between these two enzymes, we determined the crystal structures of AgaA and AgaB by molecular replacement at 3.2- and 1.8 Å-resolution, respectively. We also solved a 2.8-Å structure of the AgaA(A355E) mutant, which has enzymatic properties similar to those of AgaB. We observe that residue 355 is located 20 Å away from the active site and that the A355E substitution causes structural rearrangements resulting in a significant displacement of the invariant Trp(336) at catalytic subsite -1. Hence, the active cleft of AgaA is narrowed in comparison with AgaB, and AgaA is more efficient than AgaB against its natural substrates. The structure of AgaA(A355E) complexed with 1-deoxygalactonojirimycin reveals an induced fit movement; there is a rupture of the electrostatic interaction between Glu(355) and Asn(335) and a return of Trp(336) to an optimal position for ligand stacking. The structures of two catalytic mutants of AgaA(A355E) complexed with raffinose and stachyose show that the binding interactions are stronger at subsite -1 to enable the binding of various α-galactosides.

  4. Crowdsourcing the unknown: the satellite search for Genghis Khan.

    PubMed

    Lin, A Y M; Lin, Albert Yu-Min; Huynh, Andrew; Lanckriet, Gert; Barrington, Luke

    2014-01-01

    Massively parallel collaboration and emergent knowledge generation is described through a large scale survey for archaeological anomalies within ultra-high resolution earth-sensing satellite imagery. Over 10K online volunteers contributed 30K hours (3.4 years), examined 6,000 km², and generated 2.3 million feature categorizations. Motivated by the search for Genghis Khan's tomb, participants were tasked with finding an archaeological enigma that lacks any historical description of its potential visual appearance. Without a pre-existing reference for validation we turn towards consensus, defined by kernel density estimation, to pool human perception for "out of the ordinary" features across a vast landscape. This consensus served as the training mechanism within a self-evolving feedback loop between a participant and the crowd, essential driving a collective reasoning engine for anomaly detection. The resulting map led a National Geographic expedition to confirm 55 archaeological sites across a vast landscape. A increased ground-truthed accuracy was observed in those participants exposed to the peer feedback loop over those whom worked in isolation, suggesting collective reasoning can emerge within networked groups to outperform the aggregate independent ability of individuals to define the unknown.

  5. Crowdsourcing the Unknown: The Satellite Search for Genghis Khan

    PubMed Central

    Lin, Albert Yu-Min; Huynh, Andrew; Lanckriet, Gert; Barrington, Luke

    2014-01-01

    Massively parallel collaboration and emergent knowledge generation is described through a large scale survey for archaeological anomalies within ultra-high resolution earth-sensing satellite imagery. Over 10K online volunteers contributed 30K hours (3.4 years), examined 6,000 km2, and generated 2.3 million feature categorizations. Motivated by the search for Genghis Khan's tomb, participants were tasked with finding an archaeological enigma that lacks any historical description of its potential visual appearance. Without a pre-existing reference for validation we turn towards consensus, defined by kernel density estimation, to pool human perception for “out of the ordinary” features across a vast landscape. This consensus served as the training mechanism within a self-evolving feedback loop between a participant and the crowd, essential driving a collective reasoning engine for anomaly detection. The resulting map led a National Geographic expedition to confirm 55 archaeological sites across a vast landscape. A increased ground-truthed accuracy was observed in those participants exposed to the peer feedback loop over those whom worked in isolation, suggesting collective reasoning can emerge within networked groups to outperform the aggregate independent ability of individuals to define the unknown. PMID:25549335

  6. Crowdsourcing the unknown: the satellite search for Genghis Khan.

    PubMed

    Lin, A Y M; Lin, Albert Yu-Min; Huynh, Andrew; Lanckriet, Gert; Barrington, Luke

    2014-01-01

    Massively parallel collaboration and emergent knowledge generation is described through a large scale survey for archaeological anomalies within ultra-high resolution earth-sensing satellite imagery. Over 10K online volunteers contributed 30K hours (3.4 years), examined 6,000 km², and generated 2.3 million feature categorizations. Motivated by the search for Genghis Khan's tomb, participants were tasked with finding an archaeological enigma that lacks any historical description of its potential visual appearance. Without a pre-existing reference for validation we turn towards consensus, defined by kernel density estimation, to pool human perception for "out of the ordinary" features across a vast landscape. This consensus served as the training mechanism within a self-evolving feedback loop between a participant and the crowd, essential driving a collective reasoning engine for anomaly detection. The resulting map led a National Geographic expedition to confirm 55 archaeological sites across a vast landscape. A increased ground-truthed accuracy was observed in those participants exposed to the peer feedback loop over those whom worked in isolation, suggesting collective reasoning can emerge within networked groups to outperform the aggregate independent ability of individuals to define the unknown. PMID:25549335

  7. AGA; U. S. gas reserve additions lag production

    SciTech Connect

    Not Available

    1992-05-04

    The American Gas Association estimates 1991 U.S. natural gas reserve additions were only 65-79% of production, compared with a 96% average for 1981-90. AGA found that 75% of 1991 reserve additions occurred as discoveries and field extensions, and only 25% came from revisions of estimates. Total reserve additions may range from 11.1 tcf to 13.4 tcf. The 30 largest gas reserves holders sold more than 1.1 tcf of reserves to other firms. The top 30 companies had reserve additions of 5.754 tcf, down 3.541 tcf from a year earlier. Total gas reserves held by the top 30 dropped by 3.757 tcf. The 30 companies produced 8.417 tcf in 1991, compared with 8.352 tcf in 1989. This paper reports that AGA compiles the reserve addition estimates from data the 30 largest gas companies file with the Securities and exchange Commission, supplemented with data from gas pipelines holding large reserves.

  8. Comparison of Natural Gas Storage Estimates from the EIA and AGA

    EIA Publications

    1997-01-01

    The Energy Information Administration (EIA) has been publishing monthly storage information for years. In order to address the need for more timely information, in 1994 the American Gas Association (AGA) began publishing weekly storage levels. Both the EIA and the AGA series provide estimates of the total working gas in storage, but use significantly different methodologies.

  9. [Distribution of the male lineages of Genghis Khan's descendants in northern Eurasian populations].

    PubMed

    Derenko, M V; Maliarchuk, B A; Wozniak, M; Denisova, G A; Dambueva, I K; Dorzhu, C M; Grzybowski, T; Zakharov, I A

    2007-03-01

    Data on the variation of 12 microsatellite loci of Y-chromosome haplogroup C3 were used to screen lineages included in the cluster of Genghis Khan's descendants in 18 northern Eurasian populations (Altaian Kazakhs, Altaians-Kizhi, Teleuts, Khakassians, Shorians, Tyvans, Todjins, Tofalars, Sojots, Buryats, Khamnigans, Evenks, Mongols, Kalmyks, Tajiks, Kurds, Persians, and Russians; the total sample size was 1437 people). The highest frequency of haplotypes from the cluster of the Genghis Khan's descendants was found in Mongols (34.8%). In Russia, this cluster was found in Altaian Kazakhs (8.3%), Altaians (3.4%), Buryats (2.3%), Tyvans (1.9%), and Kalmyks (1.7%). PMID:17486763

  10. Increasing Student Engagement in Math: The Use of Khan Academy in Chilean Classrooms

    ERIC Educational Resources Information Center

    Light, Daniel; Pierson, Elizabeth

    2014-01-01

    Khan Academy, an online platform offering educational videos and exercises in different content areas, has awakened intense interest among foundations, multilateral organizations, policy makers, and educators about how this tool can help meet the educational challenges facing countries around the world. With support from Intel, Education…

  11. Shaping Influences on the Leadership of Genghis Khan, George Washington, and Nelson Mandela: Applications for Educators

    ERIC Educational Resources Information Center

    Bongila, Jean-Pierre

    2011-01-01

    Using a prosopographical methodology this study examines common leadership influences that might have existed among Genghis Khan, George Washington, and Nelson Mandela. Shoup (2005) suggests that the following seven influences have contributed to nurturing the leadership of 12 renowned individuals: involved parents, happy childhood, formal,…

  12. KHAN DU! II. Final Project Performance Report, November 1, 1978-September 30, 1979.

    ERIC Educational Resources Information Center

    KLRN/KLRU-TV, Austin, TX.

    This KHAN DU! project produced four half-hour television programs in the area of career education with emphasis on the handicapped, plus an extra nonbroadcast program designed for teachers. The four-program series was designed for children aged eight to eleven, although older children have responded favorably. The goals of the series were (1) to…

  13. A Case Study for Teaching Quantitative Biochemical Buffer Problems Using Group Work and "Khan Style" Videos

    ERIC Educational Resources Information Center

    Barreto, Jose; Reilly, John; Brown, David; Frost. Laura; Coticone, Sulekha Rao; Dubetz, Terry Ann; Beharry, Zanna; Davis-McGibony, C. Michele; Ramoutar, Ria; Rudd, Gillian

    2014-01-01

    New technological developments have minimized training, hardware expense, and distribution problems for the production and use of instructional videos, and any science instructor can now make instructional videos for their classes. We created short "Khan style" videos for the topic of buffers in biochemistry and assigned them as…

  14. Developing Pedagogical Content Knowledge of Science Teachers through Action Research: A Case Study from Pakistan

    ERIC Educational Resources Information Center

    Halai, Nelofer; Khan, Manzoor Ali

    2011-01-01

    The aim of this study is to analyze the action research undertaken by Khan as a teacher researcher in a private school as part of the degree requirement of his M.Ed. program in Teacher Education at the Aga Khan University, Institute for Educational Development. The purpose of this analysis undertaken by the first author and supervisor of the study…

  15. Molecular Genealogy of a Mongol Queen's Family and Her Possible Kinship with Genghis Khan.

    PubMed

    Lkhagvasuren, Gavaachimed; Shin, Heejin; Lee, Si Eun; Tumen, Dashtseveg; Kim, Jae-Hyun; Kim, Kyung-Yong; Kim, Kijeong; Park, Ae Ja; Lee, Ho Woon; Kim, Mi Jin; Choi, Jaesung; Choi, Jee-Hye; Min, Na Young; Lee, Kwang-Ho

    2016-01-01

    Members of the Mongol imperial family (designated the Golden family) are buried in a secret necropolis; therefore, none of their burial grounds have been found. In 2004, we first discovered 5 graves belonging to the Golden family in Tavan Tolgoi, Eastern Mongolia. To define the genealogy of the 5 bodies and the kinship among them, SNP and/or STR profiles of mitochondria, autosomes, and Y chromosomes were analyzed. Four of the 5 bodies were determined to carry the mitochondrial DNA haplogroup D4, while the fifth carried haplogroup CZ, indicating that this individual had no kinship with the others. Meanwhile, Y-SNP and Y-STR profiles indicate that the males examined belonged to the R1b-M343 haplogroup. Thus, their East Asian D4 or CZ matrilineal and West Eurasian R1b-M343 patrilineal origins reveal genealogical admixture between Caucasoid and Mongoloid ethnic groups, despite a Mongoloid physical appearance. In addition, Y chromosomal and autosomal STR profiles revealed that the four D4-carrying bodies bore the relationship of either mother and three sons or four full siblings with almost the same probability. Moreover, the geographical distribution of R1b-M343-carrying modern-day individuals demonstrates that descendants of Tavan Tolgoi bodies today live mainly in Western Eurasia, with a high frequency in the territories of the past Mongol khanates. Here, we propose that Genghis Khan and his family carried Y-haplogroup R1b-M343, which is prevalent in West Eurasia, rather than the Y-haplogroup C3c-M48, which is prevalent in Asia and which is widely accepted to be present in the family members of Genghis Khan. Additionally, Tavan Tolgoi bodies may have been the product of marriages between the lineage of Genghis Khan's Borjigin clan and the lineage of either the Ongud or Hongirad clans, indicating that these individuals were members of Genghis Khan's immediate family or his close relatives.

  16. Molecular Genealogy of a Mongol Queen's Family and Her Possible Kinship with Genghis Khan.

    PubMed

    Lkhagvasuren, Gavaachimed; Shin, Heejin; Lee, Si Eun; Tumen, Dashtseveg; Kim, Jae-Hyun; Kim, Kyung-Yong; Kim, Kijeong; Park, Ae Ja; Lee, Ho Woon; Kim, Mi Jin; Choi, Jaesung; Choi, Jee-Hye; Min, Na Young; Lee, Kwang-Ho

    2016-01-01

    Members of the Mongol imperial family (designated the Golden family) are buried in a secret necropolis; therefore, none of their burial grounds have been found. In 2004, we first discovered 5 graves belonging to the Golden family in Tavan Tolgoi, Eastern Mongolia. To define the genealogy of the 5 bodies and the kinship among them, SNP and/or STR profiles of mitochondria, autosomes, and Y chromosomes were analyzed. Four of the 5 bodies were determined to carry the mitochondrial DNA haplogroup D4, while the fifth carried haplogroup CZ, indicating that this individual had no kinship with the others. Meanwhile, Y-SNP and Y-STR profiles indicate that the males examined belonged to the R1b-M343 haplogroup. Thus, their East Asian D4 or CZ matrilineal and West Eurasian R1b-M343 patrilineal origins reveal genealogical admixture between Caucasoid and Mongoloid ethnic groups, despite a Mongoloid physical appearance. In addition, Y chromosomal and autosomal STR profiles revealed that the four D4-carrying bodies bore the relationship of either mother and three sons or four full siblings with almost the same probability. Moreover, the geographical distribution of R1b-M343-carrying modern-day individuals demonstrates that descendants of Tavan Tolgoi bodies today live mainly in Western Eurasia, with a high frequency in the territories of the past Mongol khanates. Here, we propose that Genghis Khan and his family carried Y-haplogroup R1b-M343, which is prevalent in West Eurasia, rather than the Y-haplogroup C3c-M48, which is prevalent in Asia and which is widely accepted to be present in the family members of Genghis Khan. Additionally, Tavan Tolgoi bodies may have been the product of marriages between the lineage of Genghis Khan's Borjigin clan and the lineage of either the Ongud or Hongirad clans, indicating that these individuals were members of Genghis Khan's immediate family or his close relatives. PMID:27627454

  17. K-12 Online Lesson Alignment to the Principles of Universal Design for Learning: The Khan Academy

    ERIC Educational Resources Information Center

    Smith, Sean J.; Harvey, Evelyn E.

    2014-01-01

    The field of K-12 education is being transformed, with an influx of students, including those with identified disabilities, engaging in blended and fully online learning. While online learning shows promise for students with disabilities through flexible content and personalised instruction, concerns regarding accessibility and appropriateness of…

  18. The fate of medical knowledge and the neurosciences during the time of Genghis Khan and the Mongolian Empire.

    PubMed

    Safavi-Abbasi, Sam; Brasiliense, Leonardo B C; Workman, Ryan K; Talley, Melanie C; Feiz-Erfan, Iman; Theodore, Nicholas; Spetzler, Robert F; Preul, Mark C

    2007-01-01

    In 25 years, the Mongolian army of Genghis Khan conquered more of the known world than the Roman Empire accomplished in 400 years of conquest. The recent revised view is that Genghis Khan and his descendants brought about "pax Mongolica" by securing trade routes across Eurasia. After the initial shock of destruction by an unknown barbaric tribe, almost every country conquered by the Mongols was transformed by a rise in cultural communication, expanded trade, and advances in civilization. Medicine, including techniques related to surgery and neurological surgery, became one of the many areas of life and culture that the Mongolian Empire influenced.

  19. Biodiversity and importance of floating weeds of Dara Ismail, Khan District of KPK, Pakistan.

    PubMed

    Marwat, Sarfaraz Khan; Khan, Mir Ajab; Fazal-ur-Rehman; Ahmad, Mushtaq; Zafar, Muhammad

    2011-01-01

    The present paper is based on the results of taxonomic research work conducted in Dera Ismail Khan District of KPK, Pakistan, during 2005 - 2007. The area was extensively surveyed in order to collect floating aquatic weeds. From the study area 11 floating aquatic weed species belonging to 9 genera and 9 families were collected and identified in the light of available literature. These plants include Bryophytes: 1 species, Ricciocarpus natans (L.) Corda; Pteridophytes: 2 species, Azolla pinnata R.Br. and Marselia quadrifolia L., and Spermatophytes: 8 species, Lemna aequinoctialis Welw., L. gibba L., Marselia quadrifoliata L. Nelumbo nucifera Gaerth., Nymphoides cristata (Roxb.) O. Ketze. Nymphoides indica (L.) Kuntze:, Pistia stratiotes L. Potamogeton nodosus Poiret and Spirodela polyrrhiza (L.) Schleid. Floating weeds on one hand cause serious problems and on the other hand they are used for various purposes. Data inventory consists of botanical name, family, major group, habit and habitat, flowering period, availability, distribution in D.I.Khan, Pakistan and world, beneficial and harmful effects. Key to the floating aquatic species of the area was developed for easy and correct identification and differentiation. PMID:22754062

  20. Biodiversity and importance of floating weeds of Dara Ismail, Khan District of KPK, Pakistan.

    PubMed

    Marwat, Sarfaraz Khan; Khan, Mir Ajab; Fazal-ur-Rehman; Ahmad, Mushtaq; Zafar, Muhammad

    2011-01-01

    The present paper is based on the results of taxonomic research work conducted in Dera Ismail Khan District of KPK, Pakistan, during 2005 - 2007. The area was extensively surveyed in order to collect floating aquatic weeds. From the study area 11 floating aquatic weed species belonging to 9 genera and 9 families were collected and identified in the light of available literature. These plants include Bryophytes: 1 species, Ricciocarpus natans (L.) Corda; Pteridophytes: 2 species, Azolla pinnata R.Br. and Marselia quadrifolia L., and Spermatophytes: 8 species, Lemna aequinoctialis Welw., L. gibba L., Marselia quadrifoliata L. Nelumbo nucifera Gaerth., Nymphoides cristata (Roxb.) O. Ketze. Nymphoides indica (L.) Kuntze:, Pistia stratiotes L. Potamogeton nodosus Poiret and Spirodela polyrrhiza (L.) Schleid. Floating weeds on one hand cause serious problems and on the other hand they are used for various purposes. Data inventory consists of botanical name, family, major group, habit and habitat, flowering period, availability, distribution in D.I.Khan, Pakistan and world, beneficial and harmful effects. Key to the floating aquatic species of the area was developed for easy and correct identification and differentiation.

  1. 76 FR 42159 - Lifting of Sanctions on Person Associated With the A.Q. Khan Nuclear Procurement Network

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-18

    ... were first imposed on January 16, 2009 (see 74 FR 3126, Jan 16, 2009; Public Notice 6486). Dated: July... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF STATE Lifting of Sanctions on Person Associated With the A.Q. Khan Nuclear Procurement Network AGENCY: Bureau...

  2. Cloning, sequencing, and expression of the gene encoding the Clostridium stercorarium alpha-galactosidase Aga36A in Escherichia coli.

    PubMed

    Suryani; Kimura, Tetsuya; Sakka, Kazuo; Ohmiya, Kunio

    2003-10-01

    The alpha-galactosidase gene aga36A of Clostridium stercorarium F-9 was cloned, sequenced, and expressed in Escherichia coli. The aga36A gene consists of 2,208 nucleotides encoding a protein of 736 amino acids with a predicted molecular weight of 84,786. Aga36A is an enzyme classified in family 36 of the glycoside hydrolases and showed sequence similarity with some enzymes of family 36 such as Geobacillus (formerly Bacillus) stearothermophilus GalA (57%) and AgaN (52%). The enzyme purified from a recombinant E. coli is optimally active at 70 degrees C and pH 6.0. The enzyme hydrolyzed raffinose and guar gum with specific activities of 3.0 U/mg and 0.46 U/mg for the respective substrates.

  3. Epidemiological survey of the prevalence of parasites among children in Khan Younis governorate, Palestine.

    PubMed

    Astal, Z

    2004-12-01

    The prevalence of intestinal parasites was determined for 1,370 children in Khan Younis Governorate, Gaza Strip. The age of the children ranged from 6 to 11 years. For stool samples, inspection, direct smear microscopy, flotation and sedimentation techniques were used. The general prevalence of intestinal parasites was 34.2%. Different types of intestinal parasites were detected during this survey: Ascaris lumbricoides seemed to be the most common parasite (12.8%), whereas Giardia lamblia had a prevalence of 8.0%, Entamoeba histolytica 7.0%, Entamoeba coli 3.6%, Trichuris trichiura 1.6% and Hymenolepis nana 1.0%. The prevalence of enterobiasis was determined using a scotch tape preparation. A total of 20.9% of the children examined were infected and there was sex variation in the prevalence of enterobiasis. PMID:15517386

  4. Ex-vivo assessment and non-invasive in vivo imaging of internal hemorrhages in Aga2/+ mutant mice

    SciTech Connect

    Ermolayev, Vladimir; Cohrs, Christian M.; Mohajerani, Pouyan; Ale, Angelique; Hrabé de Angelis, Martin; Ntziachristos, Vasilis

    2013-03-08

    Highlights: ► Aga2/+ mice, model for Osteogenesis imperfecta, have type I collagen mutation. ► Aga2/+ mice display both moderate and severe phenotypes lethal 6–11th postnatal. ► Internal hemorrhages studied in Aga2/+ vs. control mice at 6 and 9 days postnatal. ► Anatomical and functional findings in-vivo contrasted to the ex-vivo appearance. -- Abstract: Mutations in type I collagen genes (COL1A1/2) typically lead to Osteogenesis imperfecta, the most common heritable cause of skeletal fractures and bone deformation in humans. Heterozygous Col1a1{sup Aga2/+}, animals with a dominant mutation in the terminal C-propeptide domain of type I collagen develop typical skeletal hallmarks and internal hemorrhages starting from 6 day after birth. The disease progression for Aga2/+ mice, however, is not uniform differing between severe phenotype lethal at the 6–11th day of life, and moderate-to-severe one with survival to adulthood. Herein we investigated whether a new modality that combines X-ray computer tomography with fluorescence tomography in one hybrid system can be employed to study internal bleedings in relation to bone fractures and obtain insights into disease progression. The disease phenotype was characterized on Aga2/+ vs. wild type mice between 6 and 9 days postnatal. Anatomical and functional findings obtained in-vivo were contrasted to the ex-vivo appearance of the same tissues under cryo-slicing.

  5. Extracellular Production of a Novel Endo-β-Agarase AgaA from Pseudomonas vesicularis MA103 that Cleaves Agarose into Neoagarotetraose and Neoagarohexaose

    PubMed Central

    Hsu, Pang-Hung; Wei, Chien-Han; Lu, Wen-Jung; Shen, Fen; Pan, Chorng-Liang; Lin, Hong-Ting Victor

    2015-01-01

    The gene agaA, of the isolated marine bacterium Pseudomonas vesicularis MA103, comprised 2958-bp nucleotides encoding a putative agarase AgaA of 985 amino acids, which was predicted to contain a signal peptide of 29 amino acids in the N-terminus, a catalytic domain of glycoside hydrolase 16 (GH16) family, a bacterial immunoglobulin group 2 (Big 2), and three carbohydrate binding modules 6 (CBM 6). The gene agaA was cloned and overexpressed in Escherichia coli, and the optimum temperatures for AgaA overexpression were 16, 20 and 24 °C. The agaA was cloned without its signal peptide for cytosolic production overexpression, whereas it was cloned with the heterologous signal peptide PelB and its endogenous signal peptide for periplasmic and extracellular productions, respectively. Extracellular and periplasmic rAgaA showed greater activity than that of cytosolic rAgaA, indicating that membrane translocation of AgaA may encourage proper protein folding. Time-course hydrolysis of agarose by rAgaA was accomplished and the products were analyzed using thin layer chromatography and matrix-assisted laser desorption inoization-time of flight mass spectrometry, indicating that AgaA from P. vesicularis was an endo-type β-1,4 agarase that cleaved agarose into neoagarotetraose and neoagarohexaose as the final products. PMID:25768342

  6. Molecular Genealogy of a Mongol Queen’s Family and Her Possible Kinship with Genghis Khan

    PubMed Central

    Lkhagvasuren, Gavaachimed; Shin, Heejin; Lee, Si Eun; Tumen, Dashtseveg; Kim, Jae-Hyun; Kim, Kyung-Yong; Kim, Kijeong; Park, Ae Ja; Lee, Ho Woon; Kim, Mi Jin; Choi, Jaesung; Choi, Jee-Hye; Min, Na Young

    2016-01-01

    Members of the Mongol imperial family (designated the Golden family) are buried in a secret necropolis; therefore, none of their burial grounds have been found. In 2004, we first discovered 5 graves belonging to the Golden family in Tavan Tolgoi, Eastern Mongolia. To define the genealogy of the 5 bodies and the kinship among them, SNP and/or STR profiles of mitochondria, autosomes, and Y chromosomes were analyzed. Four of the 5 bodies were determined to carry the mitochondrial DNA haplogroup D4, while the fifth carried haplogroup CZ, indicating that this individual had no kinship with the others. Meanwhile, Y-SNP and Y-STR profiles indicate that the males examined belonged to the R1b-M343 haplogroup. Thus, their East Asian D4 or CZ matrilineal and West Eurasian R1b-M343 patrilineal origins reveal genealogical admixture between Caucasoid and Mongoloid ethnic groups, despite a Mongoloid physical appearance. In addition, Y chromosomal and autosomal STR profiles revealed that the four D4-carrying bodies bore the relationship of either mother and three sons or four full siblings with almost the same probability. Moreover, the geographical distribution of R1b-M343-carrying modern-day individuals demonstrates that descendants of Tavan Tolgoi bodies today live mainly in Western Eurasia, with a high frequency in the territories of the past Mongol khanates. Here, we propose that Genghis Khan and his family carried Y-haplogroup R1b-M343, which is prevalent in West Eurasia, rather than the Y-haplogroup C3c-M48, which is prevalent in Asia and which is widely accepted to be present in the family members of Genghis Khan. Additionally, Tavan Tolgoi bodies may have been the product of marriages between the lineage of Genghis Khan’s Borjigin clan and the lineage of either the Ongud or Hongirad clans, indicating that these individuals were members of Genghis Khan’s immediate family or his close relatives. PMID:27627454

  7. The Rare Codon AGA Is Involved in Regulation of Pyoluteorin Biosynthesis in Pseudomonas protegens Pf-5

    PubMed Central

    Yan, Qing; Philmus, Benjamin; Hesse, Cedar; Kohen, Max; Chang, Jeff H.; Loper, Joyce E.

    2016-01-01

    The soil bacterium Pseudomonas protegens Pf-5 can colonize root and seed surfaces of many plants, protecting them from infection by plant pathogenic fungi and oomycetes. The capacity to suppress disease is attributed to Pf-5's production of a large spectrum of antibiotics, which is controlled by complex regulatory circuits operating at the transcriptional and post-transcriptional levels. In this study, we analyzed the genomic sequence of Pf-5 for codon usage patterns and observed that the six rarest codons in the genome are present in all seven known antibiotic biosynthesis gene clusters. In particular, there is an abundance of rare codons in pltR, which encodes a member of the LysR transcriptional regulator family that controls the expression of pyoluteorin biosynthetic genes. To test the hypothesis that rare codons in pltR influence pyoluteorin production, we generated a derivative of Pf-5 in which 23 types of rare codons in pltR were substituted with synonymous preferred codons. The resultant mutant produced pyoluteorin at levels 15 times higher than that of the wild-type Pf-5. Accordingly, the promoter activity of the pyoluteorin biosynthetic gene pltL was 20 times higher in the codon-modified stain than in the wild-type. pltR has six AGA codons, which is the rarest codon in the Pf-5 genome. Substitution of all six AGA codons with preferred Arg codons resulted in a variant of pltR that conferred increased pyoluteorin production and pltL promoter activity. Furthermore, overexpression of tRNAUCUArg, the cognate tRNA for the AGA codon, significantly increased pyoluteorin production by Pf-5. A bias in codon usage has been linked to the regulation of many phenotypes in eukaryotes and prokaryotes but, to our knowledge, this is the first example of the role of a rare codon in the regulation of antibiotic production by a Gram-negative bacterium. PMID:27148187

  8. The Rare Codon AGA Is Involved in Regulation of Pyoluteorin Biosynthesis in Pseudomonas protegens Pf-5.

    PubMed

    Yan, Qing; Philmus, Benjamin; Hesse, Cedar; Kohen, Max; Chang, Jeff H; Loper, Joyce E

    2016-01-01

    The soil bacterium Pseudomonas protegens Pf-5 can colonize root and seed surfaces of many plants, protecting them from infection by plant pathogenic fungi and oomycetes. The capacity to suppress disease is attributed to Pf-5's production of a large spectrum of antibiotics, which is controlled by complex regulatory circuits operating at the transcriptional and post-transcriptional levels. In this study, we analyzed the genomic sequence of Pf-5 for codon usage patterns and observed that the six rarest codons in the genome are present in all seven known antibiotic biosynthesis gene clusters. In particular, there is an abundance of rare codons in pltR, which encodes a member of the LysR transcriptional regulator family that controls the expression of pyoluteorin biosynthetic genes. To test the hypothesis that rare codons in pltR influence pyoluteorin production, we generated a derivative of Pf-5 in which 23 types of rare codons in pltR were substituted with synonymous preferred codons. The resultant mutant produced pyoluteorin at levels 15 times higher than that of the wild-type Pf-5. Accordingly, the promoter activity of the pyoluteorin biosynthetic gene pltL was 20 times higher in the codon-modified stain than in the wild-type. pltR has six AGA codons, which is the rarest codon in the Pf-5 genome. Substitution of all six AGA codons with preferred Arg codons resulted in a variant of pltR that conferred increased pyoluteorin production and pltL promoter activity. Furthermore, overexpression of tRNA[Formula: see text], the cognate tRNA for the AGA codon, significantly increased pyoluteorin production by Pf-5. A bias in codon usage has been linked to the regulation of many phenotypes in eukaryotes and prokaryotes but, to our knowledge, this is the first example of the role of a rare codon in the regulation of antibiotic production by a Gram-negative bacterium. PMID:27148187

  9. Gastroparesis and Functional Dyspepsia: Excerpts from the AGA/ANMS Meeting

    PubMed Central

    Parkman, Henry P.; Camilleri, Michael; Farrugia, Gianrico; McCallum, Richard W.; Bharucha, Adil E.; Mayer, Emeran A.; Tack, Jan F.; Spiller, Robin; Horowitz, Michael; Vinik, Aaron I.; Galligan, James J.; Pasricha, P. Jay; Kuo, Braden; Szarka, Lawrence A.; Marciani, Luca; Jones, Karen; Parrish, Carol Rees; Sandroni, Paola; Abell, Thomas; Ordog, Tamas; Hasler, William; Koch, Kenneth L.; Sanders, Kenton; Norton, Nancy J.; Hamilton, Frank

    2010-01-01

    Despite the relatively high prevelance of gastroparesis and functional dyspepsia, the etiology and pathophysiology of these disorders remain incompletely understood. Similarly, the diagnostic and treatment options for these two disorders are relatively limited despite recent advances in our understanding of both disorders. This manuscript reviews the advances in the understanding of the epidemiology, pathophysiology, diagnosis, and treatment of gastroparesis and functional dyspepsia as discussed at a recent conference sponsored by the American Gastroenterological Association (AGA) and the American Neurogastroenterology and Motility Society (ANMS). Particular focus is placed on discussing unmet needs and areas for future research. PMID:20003077

  10. The cytoskeletal regulator Genghis khan is required for columnar target specificity in the Drosophila visual system

    PubMed Central

    Gontang, Allison C.; Hwa, Jennifer J.; Mast, Joshua D.; Schwabe, Tina; Clandinin, Thomas R.

    2011-01-01

    A defining characteristic of neuronal cell type is the growth of axons and dendrites into specific layers and columns of the brain. Although differences in cell surface receptors and adhesion molecules are known to cause differences in synaptic specificity, differences in downstream signaling mechanisms that determine cell type-appropriate targeting patterns are unknown. Using a forward genetic screen in Drosophila, we identify the GTPase effector Genghis khan (Gek) as playing a crucial role in the ability of a subset of photoreceptor (R cell) axons to innervate appropriate target columns. In particular, single-cell mosaic analyses demonstrate that R cell growth cones lacking Gek function grow to the appropriate ganglion, but frequently fail to innervate the correct target column. Further studies reveal that R cell axons lacking the activity of the small GTPase Cdc42 display similar defects, providing evidence that these proteins regulate a common set of processes. Gek is expressed in all R cells, and a detailed structure-function analysis reveals a set of regulatory domains with activities that restrict Gek function to the growth cone. Although Gek does not normally regulate layer-specific targeting, ectopic expression of Gek is sufficient to alter the targeting choices made by another R cell type, the targeting of which is normally Gek independent. Thus, specific regulation of cytoskeletal responses to targeting cues is necessary for cell type-appropriate synaptic specificity. PMID:22007130

  11. Genghis Khan (Gek) as a putative effector for Drosophila Cdc42 and regulator of actin polymerization.

    PubMed

    Luo, L; Lee, T; Tsai, L; Tang, G; Jan, L Y; Jan, Y N

    1997-11-25

    The small GTPases Cdc42 and Rac regulate a variety of biological processes, including actin polymerization, cell proliferation, and JNK/mitogen-activated protein kinase activation, conceivably via distinct effectors. Whereas the effector for mitogen-activated protein kinase activation appears to be p65PAK, the identity of effector(s) for actin polymerization remains unclear. We have found a putative effector for Drosophila Cdc42, Genghis Khan (Gek), which binds to Dcdc42 in a GTP-dependent and effector domain-dependent manner. Gek contains a predicted serine/threonine kinase catalytic domain that is 63% identical to human myotonic dystrophy protein kinase and has protein kinase activities. It also possesses a large coiled-coil domain, a putative phorbol ester binding domain, a pleckstrin homology domain, and a Cdc42 binding consensus sequence that is required for its binding to Dcdc42. To study the in vivo function of gek, we generated mutations in the Drosophila gek locus. Egg chambers homozygous for gek mutations exhibit abnormal accumulation of F-actin and are defective in producing fertilized eggs. These phenotypes can be rescued by a wild-type gek transgene. Our results suggest that this multidomain protein kinase is an effector for the regulation of actin polymerization by Cdc42.

  12. The cytoskeletal regulator Genghis khan is required for columnar target specificity in the Drosophila visual system.

    PubMed

    Gontang, Allison C; Hwa, Jennifer J; Mast, Joshua D; Schwabe, Tina; Clandinin, Thomas R

    2011-11-01

    A defining characteristic of neuronal cell type is the growth of axons and dendrites into specific layers and columns of the brain. Although differences in cell surface receptors and adhesion molecules are known to cause differences in synaptic specificity, differences in downstream signaling mechanisms that determine cell type-appropriate targeting patterns are unknown. Using a forward genetic screen in Drosophila, we identify the GTPase effector Genghis khan (Gek) as playing a crucial role in the ability of a subset of photoreceptor (R cell) axons to innervate appropriate target columns. In particular, single-cell mosaic analyses demonstrate that R cell growth cones lacking Gek function grow to the appropriate ganglion, but frequently fail to innervate the correct target column. Further studies reveal that R cell axons lacking the activity of the small GTPase Cdc42 display similar defects, providing evidence that these proteins regulate a common set of processes. Gek is expressed in all R cells, and a detailed structure-function analysis reveals a set of regulatory domains with activities that restrict Gek function to the growth cone. Although Gek does not normally regulate layer-specific targeting, ectopic expression of Gek is sufficient to alter the targeting choices made by another R cell type, the targeting of which is normally Gek independent. Thus, specific regulation of cytoskeletal responses to targeting cues is necessary for cell type-appropriate synaptic specificity.

  13. Google, Mathletics and Khan Academy: students' self-initiated use of online mathematical resources

    NASA Astrophysics Data System (ADS)

    Muir, Tracey

    2014-12-01

    Today's students increasingly engage in online environments, with ready access to digital resources and mobile technologies. While much of this activity is socially motivated, the internet is also a source of knowledge for students and frequently accessed for school assignments, projects and assessment purposes. As mathematics continues to be an area in which many students experience difficulties, it is not surprising that a recent Google search produced 57,600,000 results for `help with mathematics'. Current research, however, is limited in terms of documenting students' use of such resources, particularly when they are self-initiated and often accessed in an out of classroom environment. This paper reports on a study that investigated the use of mathematical online resources accessed by students in Grades 5-9, with a particular focus on evaluating the effectiveness of Khan Academy, an online tutorial site. Data collected through surveys and interviews showed that while students did access online sites, particularly in the later years of schooling, they varied in both their reasons for doing so and their perceptions of how useful these sites were. The findings add to the limited research in this area and have practical implications for students and teachers, including the potential to challenge the traditional role of the teacher.

  14. The AGC Ser/Thr kinase Aga1 is essential for appressorium formation and maintenance of the actin cytoskeleton in the smut fungus Ustilago maydis.

    PubMed

    Berndt, Patrick; Lanver, Daniel; Kahmann, Regine

    2010-12-01

    On the plant surface the dimorphic fungus Ustilago maydis switches from budding to hyphal growth and differentiates appressoria. To get more insight into these highly regulated processes we report on the role of a conserved Ser/Thr kinase of the AGC kinase family, Aga1. U. maydis Aga1 could functionally replace Ypk1p in Saccharomyces cerevisiae. aga1 deletion mutants were affected in growth, cell wall integrity, mating as well as the ability to form appressoria and showed defects in actin organization and actin-dependent endocytosis. With respect to appressorium formation and endocytosis, the aga1 deletion phenotype could be mimicked by inhibiting the formation of actin filaments with Latrunculin A. These data suggest a critical role of Aga1 in F-actin organization during the morphological changes accompanying the development of appressoria.

  15. A simple algorithm for optimization and model fitting: AGA (asexual genetic algorithm)

    NASA Astrophysics Data System (ADS)

    Cantó, J.; Curiel, S.; Martínez-Gómez, E.

    2009-07-01

    Context: Mathematical optimization can be used as a computational tool to obtain the optimal solution to a given problem in a systematic and efficient way. For example, in twice-differentiable functions and problems with no constraints, the optimization consists of finding the points where the gradient of the objective function is zero and using the Hessian matrix to classify the type of each point. Sometimes, however it is impossible to compute these derivatives and other type of techniques must be employed such as the steepest descent/ascent method and more sophisticated methods such as those based on the evolutionary algorithms. Aims: We present a simple algorithm based on the idea of genetic algorithms (GA) for optimization. We refer to this algorithm as AGA (asexual genetic algorithm) and apply it to two kinds of problems: the maximization of a function where classical methods fail and model fitting in astronomy. For the latter case, we minimize the chi-square function to estimate the parameters in two examples: the orbits of exoplanets by taking a set of radial velocity data, and the spectral energy distribution (SED) observed towards a YSO (Young Stellar Object). Methods: The algorithm AGA may also be called genetic, although it differs from standard genetic algorithms in two main aspects: a) the initial population is not encoded; and b) the new generations are constructed by asexual reproduction. Results: Applying our algorithm in optimizing some complicated functions, we find the global maxima within a few iterations. For model fitting to the orbits of exoplanets and the SED of a YSO, we estimate the parameters and their associated errors.

  16. The magnetostratigraphy of the Chitarwata and lower Vihowa formations of the Dera Ghazi Khan area, Pakistan

    NASA Astrophysics Data System (ADS)

    Friedman, Rachel; Gee, Jeff; Tauxe, Lisa; Downing, Kevin; Lindsay, Everett

    1992-12-01

    Three sections of the Chitarwata and lower Vihowa formations were sampled along the Dalana River on the southeastern flank of the Zinda Pir Dome in the southern Sulaiman Range near Dera Ghazi Khan, Pakistan. Together they provide nearly 800 m of a continuous sedimentary record of the Miocene derived from the uplifted Himalayan highlands. Previous studies have examined the Middle and Upper Miocene sediments, the Siwalik Group, of the Potwar Plateau to the north. However, detailed investigations of earlier periods are impossible in that area due to the absence of Oligocene and Lower Miocene sediments caused by continued overthrusting associated with the Himalayan orogeny. Fortunately, the Sulaiman basin to the south, which was further removed from the tectonic activity, provides a record of the Early Miocene in the form of the Chitarwata Formation. The Dalana A, B, and C sections (DGA, DGB, and DGC) were examined and sampled for this study. A magnetostratigraphic analysis was carried out to correlate and date the Chitarwata and Vihowa formations exposed in this area. The samples were subjected to step-wise demagnetization to resolve the primary and secondary remanent magnetization components. Thermal demagnetization trajectories indicate that the majority of samples have sufficient internal consistency that their calculated polarities are reliable. Likewise, the majority of the 126 measured sites showed statistically significant agreement between the three measured samples per site. However, the bimodal data set does not pass the reversal test and so is deemed unsuitable for tectonic interpretations. The individual sections were initially correlated using lithologic and stratigraphic methods, and the relationship was reinforced by the magnetostratigraphy. The composite DG section was tentatively correlated with the standard magnetic polarity time scale placing the disconformable base of the Chitarwata in the DGA section at just older than 22 Ma, the Chitarwata

  17. Medicinal uses of honey (Quranic medicine) and its bee flora from Dera Ismail Khan District, KPK, Pakistan.

    PubMed

    Marwat, Sarfaraz Khan; Khan, Muhammad Aslam; Rehman, Fazalur; Khan, Kaleemullah

    2013-03-01

    This study was carried out during 2005-2008 to identify existing plant species visited by workers of honeybees for nectar and pollen collection in Dera Ismail Khan (D.I.Khan) District, Pakistan. The honeybee species investigated in the area were, rock bee (Apis dorsata F.), little bee (A. florea F.) and European honeybee (A. mellifera L.). A detailed list of 86 plant species both wild and cultivated was prepared, out of which 12 species, Phulai (Acacia modesta Wall.), Sarsoon (Brassica campestris L.), Kaghzi nimboo (Citrus aurantifolia L.), Khatta (C. medica L.), Malta (C. sinensis (L.) Osbeck.), Shisham (Dalbergia sissoo Roxb.), Date (Phoenix dactylifera L.), Barseen (Trifolium alexandrianum L.), Shaftal (T. resupinatum L), Makai (Zea mays L.), Ber (Zizyphus mauritiana Lam.) and Jher beri (Z. numularia (Burm. f.) Wight & Arn.,) were found as major sources (table 1) for the production of surplus honey in a year at different localities in the District. Among the minor sources various plant species were included (table 2). These plants fill the flowering gaps between the major sources in various parts of the year and help in continuous supply of food to honey bees.

  18. Medicinal uses of honey (Quranic medicine) and its bee flora from Dera Ismail Khan District, KPK, Pakistan.

    PubMed

    Marwat, Sarfaraz Khan; Khan, Muhammad Aslam; Rehman, Fazalur; Khan, Kaleemullah

    2013-03-01

    This study was carried out during 2005-2008 to identify existing plant species visited by workers of honeybees for nectar and pollen collection in Dera Ismail Khan (D.I.Khan) District, Pakistan. The honeybee species investigated in the area were, rock bee (Apis dorsata F.), little bee (A. florea F.) and European honeybee (A. mellifera L.). A detailed list of 86 plant species both wild and cultivated was prepared, out of which 12 species, Phulai (Acacia modesta Wall.), Sarsoon (Brassica campestris L.), Kaghzi nimboo (Citrus aurantifolia L.), Khatta (C. medica L.), Malta (C. sinensis (L.) Osbeck.), Shisham (Dalbergia sissoo Roxb.), Date (Phoenix dactylifera L.), Barseen (Trifolium alexandrianum L.), Shaftal (T. resupinatum L), Makai (Zea mays L.), Ber (Zizyphus mauritiana Lam.) and Jher beri (Z. numularia (Burm. f.) Wight & Arn.,) were found as major sources (table 1) for the production of surplus honey in a year at different localities in the District. Among the minor sources various plant species were included (table 2). These plants fill the flowering gaps between the major sources in various parts of the year and help in continuous supply of food to honey bees. PMID:23455201

  19. Developing Understanding of Innovative Strategies of Teaching Science through Action Research: A Qualitative Meta-Synthesis from Pakistan

    ERIC Educational Resources Information Center

    Halai, Nelofer

    2012-01-01

    This study is a meta-synthesis of 20 action research studies undertaken in the classroom by teachers to develop their understanding of an innovative strategy for teaching science. The studies were undertaken as part of the requirements for their 2-year M.Ed. program from the Aga Khan University, Institute for Educational Development (AKU-IED),…

  20. A tribute to Sheik Humarr Khan and all the healthcare workers in West Africa who have sacrificed in the fight against Ebola virus disease: Mae we hush.

    PubMed

    Bausch, Daniel G; Bangura, James; Garry, Robert F; Goba, Augustine; Grant, Donald S; Jacquerioz, Frederique A; McLellan, Susan L; Jalloh, Simbirie; Moses, Lina M; Schieffelin, John S

    2014-11-01

    The Kenema Government Hospital Lassa Fever Ward in Sierra Leone, directed since 2005 by Dr. Sheikh Humarr Khan, is the only medical unit in the world devoted exclusively to patient care and research of a viral hemorrhagic fever. When Ebola virus disease unexpectedly appeared in West Africa in late 2013 and eventually spread to Kenema, Khan and his fellow healthcare workers remained at their posts, providing care to patients with this devastating illness. Khan and the chief nurse, Mbalu Fonnie, became infected and died at the end of July, a fate that they have sadly shared with more than ten other healthcare workers in Kenema and hundreds across the region. This article pays tribute to Sheik Humarr Khan, Mbalu Fonnie and all the healthcare workers who have acquired Ebola virus disease while fighting the epidemic in West Africa. Besides the emotional losses, the death of so many skilled and experienced healthcare workers will severely impair health care and research in affected regions, which can only be restored through dedicated, long-term programs. PMID:25196533

  1. A tribute to Sheik Humarr Khan and all the healthcare workers in West Africa who have sacrificed in the fight against Ebola virus disease: Mae we hush.

    PubMed

    Bausch, Daniel G; Bangura, James; Garry, Robert F; Goba, Augustine; Grant, Donald S; Jacquerioz, Frederique A; McLellan, Susan L; Jalloh, Simbirie; Moses, Lina M; Schieffelin, John S

    2014-11-01

    The Kenema Government Hospital Lassa Fever Ward in Sierra Leone, directed since 2005 by Dr. Sheikh Humarr Khan, is the only medical unit in the world devoted exclusively to patient care and research of a viral hemorrhagic fever. When Ebola virus disease unexpectedly appeared in West Africa in late 2013 and eventually spread to Kenema, Khan and his fellow healthcare workers remained at their posts, providing care to patients with this devastating illness. Khan and the chief nurse, Mbalu Fonnie, became infected and died at the end of July, a fate that they have sadly shared with more than ten other healthcare workers in Kenema and hundreds across the region. This article pays tribute to Sheik Humarr Khan, Mbalu Fonnie and all the healthcare workers who have acquired Ebola virus disease while fighting the epidemic in West Africa. Besides the emotional losses, the death of so many skilled and experienced healthcare workers will severely impair health care and research in affected regions, which can only be restored through dedicated, long-term programs.

  2. Pilot Study of 15 Patients Receiving a New Treatment Regimen for Androgenic Alopecia: The Effects of Atopy on AGA.

    PubMed

    Rafi, A W; Katz, R M

    2011-01-01

    Background. We examined the efficacy of a new regimen to treat AGA, with attention to male patients who are atopic. Objective. To assess the efficacy of a four-part regimen for the treatment of AGA in atopic and nonatopic patients. NuH Hair is a novel topical combination of finasteride, dutasteride, and minoxidil, which is blended in a hypoallergenic lotion. The other three components included Rogaine foam, Propecia, and ketoconazole shampoo. Methods. A prospective pilot study was conducted in 15 patients. All patients were assessed for the presence of atopy. Each patient served as their own control. All patients were treated specifically with NuH Hair and were given the option to add any of the other components of the protocol to their regimen. Photographs were taken of each patient's scalp at months 0, 1, 3, 6, and 9. Results. All 15 patients demonstrated significant growth of hair. In those patients who utilized all 4 components, significant growth was achieved in as little as 30 days. In those patients who choose only to utilize NuH Hair, significant growth was demonstrated after 3 months. Conclusion. Aggressively treating AGA achieves significant and rapid growth of new hair. This is effective in atopic and nonatopic male patients.

  3. Inhibition of N- and L-type Ca2+ channels by the spider venom toxin omega-Aga-IIIA.

    PubMed Central

    Mintz, I M; Venema, V J; Adams, M E; Bean, B P

    1991-01-01

    omega-Aga-IIIA, an 8.5-kDa peptide toxin isolated from the venom of Agelenopsis aperta, was found to be a highly potent inhibitor of Ca channels in cardiac muscle and in peripheral and central neurons of rats and frogs. Cardiac L-type Ca channels were completely (Kd approximately 0.6 nM) blocked by omega-Aga-IIIA. In sensory neurons, the toxin inhibited most high-threshold Ca current but not T-type Ca current. omega-Aga-IIIA blocked with similar potency (Kd approximately 1.5 nM) both omega-conotoxin GVIA-sensitive and dihydropyridine-sensitive current components but left a fraction (approximately 35%) of high-threshold current that was also resistant to omega-conotoxin and dihydropyridines. The toxin blocks N- and L-type channels with equal potency and therefore may identify a high-affinity binding site common to these two Ca channel types. Images PMID:1713686

  4. Pilot Study of 15 Patients Receiving a New Treatment Regimen for Androgenic Alopecia: The Effects of Atopy on AGA

    PubMed Central

    Rafi, A. W.; Katz, R. M.

    2011-01-01

    Background. We examined the efficacy of a new regimen to treat AGA, with attention to male patients who are atopic. Objective. To assess the efficacy of a four-part regimen for the treatment of AGA in atopic and nonatopic patients. NuH Hair is a novel topical combination of finasteride, dutasteride, and minoxidil, which is blended in a hypoallergenic lotion. The other three components included Rogaine foam, Propecia, and ketoconazole shampoo. Methods. A prospective pilot study was conducted in 15 patients. All patients were assessed for the presence of atopy. Each patient served as their own control. All patients were treated specifically with NuH Hair and were given the option to add any of the other components of the protocol to their regimen. Photographs were taken of each patient's scalp at months 0, 1, 3, 6, and 9. Results. All 15 patients demonstrated significant growth of hair. In those patients who utilized all 4 components, significant growth was achieved in as little as 30 days. In those patients who choose only to utilize NuH Hair, significant growth was demonstrated after 3 months. Conclusion. Aggressively treating AGA achieves significant and rapid growth of new hair. This is effective in atopic and nonatopic male patients. PMID:22363845

  5. Pilot Study of 15 Patients Receiving a New Treatment Regimen for Androgenic Alopecia: The Effects of Atopy on AGA.

    PubMed

    Rafi, A W; Katz, R M

    2011-01-01

    Background. We examined the efficacy of a new regimen to treat AGA, with attention to male patients who are atopic. Objective. To assess the efficacy of a four-part regimen for the treatment of AGA in atopic and nonatopic patients. NuH Hair is a novel topical combination of finasteride, dutasteride, and minoxidil, which is blended in a hypoallergenic lotion. The other three components included Rogaine foam, Propecia, and ketoconazole shampoo. Methods. A prospective pilot study was conducted in 15 patients. All patients were assessed for the presence of atopy. Each patient served as their own control. All patients were treated specifically with NuH Hair and were given the option to add any of the other components of the protocol to their regimen. Photographs were taken of each patient's scalp at months 0, 1, 3, 6, and 9. Results. All 15 patients demonstrated significant growth of hair. In those patients who utilized all 4 components, significant growth was achieved in as little as 30 days. In those patients who choose only to utilize NuH Hair, significant growth was demonstrated after 3 months. Conclusion. Aggressively treating AGA achieves significant and rapid growth of new hair. This is effective in atopic and nonatopic male patients. PMID:22363845

  6. Cyrtodactylus samroiyot, a new limestone-dwelling Bent-toed Gecko (Squamata: Gekkonidae) from Prachuap Khiri Khan Province, peninsular Thailand.

    PubMed

    Pauwels, Olivier S G; Sumontha, Montri

    2014-01-01

    We describe Cyrtodactylus samroiyot sp. nov. from a limestone relief in Sam Roi Yot District, Prachuap Khiri Khan Province, peninsular Thailand. It is characterized by a maximal known SVL of 66.9 mm; 17-18 longitudinal rows of dorsal tubercles; 33-34 longitudinal rows of ventrals across the abdomen between the ventrolateral skin folds; a continuous series of seven precloacal pores in males (six shallow precloacal pits in females); a series of slightly enlarged, poreless and pitless femoral scales; no precloacal groove nor depression; median row of transversely enlarged subcaudal scales; a complete nuchal loop; and a dorsal pattern consisting of three long dark brown bands, one above shoulders and two above abdomen.  PMID:24869842

  7. Indoor radon monitoring near an in situ leach mining site in D G Khan, Pakistan.

    PubMed

    Matiullah; Malik, Fariha; Rafique, Muhammad

    2012-12-01

    Indoor radon and its decay products are considered to be the second leading cause of lung cancer after cigarette smoking. This is why extensive radon surveys have been carried out in many countries of the world, including Pakistan. In this context, 25 spots were selected at workplaces in the vicinity of the uranium mining site in Dera Ghazi Khan District for indoor radon measurement. For this purpose, CR-39 based radon detectors were installed at head height and were exposed to indoor radon for 60 days. After retrieval, these detectors were etched in a 6 M solution of NaOH at the temperature of 80 °C for 16 h in order to make the alpha particle tracks visible. The observed track densities were related to the indoor radon concentration using a calibration factor of 2.7 tracks cm(-2) h(-1)/kBq m(-3). The measured indoor radon concentration ranged from ∼386 ±161 to 3028 ± 57 Bq m(-3) with an average value of 1508 ± 81 Bq m(-3) in the studied areas of Dera Ghazi Khan District. The mean annual effective dose ranged from 2.22 ± 0.93 to 17.44 ± 0.33 mSv yr(-1), with an average of 8.68 ± 0.47 mSv yr(-1). The effect of the seasonal correction factor (SCF) on the annual average radon concentration has also been considered. Results of the current study show that, for the majority of the workplaces studied, indoor radon levels exceed the action levels proposed by many world organisations.

  8. β-mannanase (Man26A) and α-galactosidase (Aga27A) synergism - a key factor for the hydrolysis of galactomannan substrates.

    PubMed

    Malgas, Samkelo; van Dyk, Susan J; Pletschke, Brett I

    2015-03-01

    This study investigated the behavior of mannan-degrading enzymes, specifically focusing on differences with respect to their substrate specificities and their synergistic associations with enzymes from different glycoside hydrolase (GH) families. Galactosidases from Cyamopsis tetragonolobus seeds (Aga27A, GH27) and Aspergillus niger (AglC, GH36) were evaluated for their abilities to synergistically interact with mannanases from Clostridium cellulovorans (ManA, GH5) and A. niger (Man26A, GH26) in hydrolysis of guar gum and locust bean gum. Among the mannanases, Man26A was more efficient at hydrolyzing both galactomannan substrates, while among the galactosidases; Aga27A was the most effective at removing galactose substituents on both galactomannan substrates and galactose-containing oligosaccharides. An optimal protein mass ratio of glycoside hydrolases required to maximize the release of both reducing sugar and galactose residues was determined. Clear synergistic enhancement of locust bean gum hydrolysis with respect to reducing sugar release was observed when both mannanases at 75% enzyme dosage were supplemented with 25% enzyme protein dosage of Aga27A. At a protein ratio of 75% Man26A to 25% Aga27A, the presence of Man26A significantly enhanced galactose release by 25% Aga27A (2.36 fold) with locust bean gum, compared to when Aga27A was used alone at 100% enzyme protein dosage. A dosage of Aga27A at 75% and ManA at 25% protein content liberated the highest reducing sugar release on guar gum hydrolysis. A dosage of Man26A and Aga27A at 75-25% protein content, respectively, liberated reducing sugar release equivalent to that when Man26A was used alone at 100% protein content. From the findings obtained in this study, it was observed that the GH family classification of an enzyme affects its substrate specificity and synergistic interactions with other glycoside hydrolases from different families (more so than its EC classification). The GH26 Man26A and GH27 Aga27

  9. Findings and Recommendations From the Joint NIST—AGA Workshop on Odor Masking

    PubMed Central

    Rawson, Nancy; Quraishi, Ali; Bruno, Thomas J.

    2011-01-01

    Since the days of the alchemist, the observation that some substances have a smell while other substances do not has been a source of fascination. The sense of smell, or olfaction, is our least understood sense, however it is important for many human functions, including digestion, food selection and hazard avoidance. The detailed explanation of why individual chemicals (called odorants) might have a particular smell is still elusive. The situation with mixtures of odorants is even more complex and interesting. A number of distinct odorant mixture phenomena have been documented. Odorant suppression (sometimes called masking), conjugation (as described first by Zwaadermaker) and cross-adaptation are among a collection of such phenomena. They are related to the differential effects that one odorant species will have when mixed with another. Masking is a term that describes situations in which one odorant can overpower the sensation of another. There may be profound technological implications in a number of industrial sectors, most prominently in the fuel gas sector. Here, masking is suspected when the odorant that is added to natural gas can be detected by analytical instrumentation, but cannot be properly detected by an observer with a normal sense of smell. Note that this phenomenon is distinct from odor fade, which more properly describes a decrease in the concentration of an odorant rather than a decrease, disappearance or qualitative change in the perception of the odor in the absence of a change in absolute concentration. Anecdotal descriptions of masking events in the natural gas industry have persisted for over a decade, with the frequency of such events on the rise. Pursuant to the philosophy that the technological problem cannot be addressed until the basic science is understood, NIST, in collaboration with the American Gas Association (AGA), sponsored a workshop that brought together olfactory scientists and natural gas operations personnel in an effort to

  10. The Y-chromosome C3* star-cluster attributed to Genghis Khan's descendants is present at high frequency in the Kerey clan from Kazakhstan.

    PubMed

    Abilev, Serikbai; Malyarchuk, Boris; Derenko, Miroslava; Wozniak, Marcin; Grzybowski, Tomasz; Zakharov, Ilya

    2012-02-01

    To verify the possibility that the Y-chromosome C3* star-cluster attributed to Genghis Khan and his patrilineal descendants is relatively frequent in the Kereys, who are the dominant clan in Kazakhstan and in Central Asia as a whole, polymorphism of the Y-chromosome was studied in Kazakhs, represented mostly by members of the Kerey clan. The Kereys showed the highest frequency (76.5%) of individuals carrying the Y-chromosome variant known as C3* star-cluster ascribed to the descendants of Genghis Khan. C3* star-cluster haplotypes were found in two subclans, Abakh-Kereys and Ashmaily-Kereys, diverged about 20-22 generations ago according to the historical data. Median network of the Kerey star-cluster haplotypes at 17 STR loci displays a bipartite structure, with two subclusters defined by the only difference at the DYS448 locus. Noteworthy is a strong correspondence of these subclusters with the Kerey subclans affiliation. The data obtained suggest that the Kerey clan appears to be the largest known clan in the world descending from a common Y-chromosome ancestor. Possible ways of Genghis Khan's relationship to the Kereys are discussed.

  11. Pesticides in shallow groundwater of Bahawalnagar, Muzafargarh, D.G. Khan and Rajan Pur districts of Punjab, Pakistan.

    PubMed

    Tariq, Muhammad Ilyas; Afzal, Shahzad; Hussain, Ishtiaq

    2004-06-01

    In Pakistan there is little data on environmental contamination of rural water sources by pesticides. This study evaluated pesticide contamination of groundwater in four intensive cotton growing districts. Water samples were collected from 37 rural open wells in the areas of Bahwalnagar, Muzafargarh, D.G. Khan and Rajan Pur districts of Punjab and analysed for eight pesticides which are mostly used. Information on types of pesticide used and distance to nearest pesticide mixing area and application areas was obtained for each site. From the eight pesticides analysed, six pesticides were detected in the water samples. Only cypermethrin and cabosulfan were not detected. The percentage of detection of bifenthrin, lambda-cyhalothrin, carbofuran, endosulfan, methyl parathion and monocrotophos was, respectively 13.5%, 5.4%, 59.4%, 8%, 5.4% and 35.1% in July; 16.2%, 13.55%, 43.2%, 8%, N.D. (not detected) and 24.3% in October. Maximum contamination levels (MCLs) established by the U.S. Environmental Protection Agency for drinking water were not exceeded. The study has shown the need for monitoring pesticide contamination in rural water resources, and the development of drinking water quality standards for specific pesticides in Pakistan. The conclusions and recommendations will be disseminated to senior decision makers in central and local governments, extension agents and farmers.

  12. Fluoride enrichment in groundwater of semi-arid urban area: Khan Younis City, southern Gaza Strip (Palestine)

    NASA Astrophysics Data System (ADS)

    Abu Jabal, Mohamed Shaban; Abustan, Ismail; Rozaimy, Mohd Remy; Al-Najar, Hussam

    2014-12-01

    The aim of this study is to determine fluoride enhancement in the groundwater of semi-arid urban area of Khan Younis City, southern Gaza Strip. Physicochemical data for a total of 200 groundwater samples were analyzed. The fluoride concentrations were varied from 0.3 to 6.45 mg/L with average value of 2.87 mg/L. Correlations between fluorides with other measured ions were relatively observed, negative correlation with calcium and the positive correlation with pH, bicarbonate and sodium increase the dissolution/solubility of fluoride bearing minerals, leading to fluoride leaching into the groundwater. Fluoride enrichment in the groundwater of the area is due to water hydrochemistry, mineral-water interaction (mainly calcite and fluorite), fluorite resulted from fluorapatite dissolution. The saturation indexes evaluation indicated that 42% of the samples are over saturated with respect to calcite and 35.5% under saturated with respect to fluorite, while 40.5% approached equilibrium with respect to both calcite and fluorite. At fluoride concentrations of less than 2.2 mg/L fluorite saturation indexes show under-saturation condition for fluorite and at higher fluoride concentrations show near saturation condition.

  13. Colloidal origin of colloform-banded textures in the Paleogene low-sulfidation Khan Krum gold deposit, SE Bulgaria

    NASA Astrophysics Data System (ADS)

    Marinova, Irina; Ganev, Valentin; Titorenkova, Rositsa

    2014-01-01

    We studied both colloform-banded macro- and micro-textures as well as the composition of electrum from the epithermal Khan Krum (or Ada Tepe) gold deposit, Bulgaria (5 Mt at 5.1 g/t Au + 2.7 g/t Ag) using optical and electron scanning microscopy, vibration spectroscopy, electron micro-probe analysis, and LA-ICP-MS. The individual textural bands differ in grain size, porosity, quartz-to-adularia ratio, and abundance of electrum, pyrite, and scattered dusty opaque micro-inclusions. The individual macro-bands have formed successively via intermittent fault dilation from episodic hydrothermal pulses, as a result of regional extension and most likely originated from colloidal solutions formed by vigorous boiling during rapid pressure drop and supersaturation with respect to amorphous silica in a closed or quasi-closed hydrothermal system. Electrum is highly concentrated in the finest quartz-adularia colloform micro-bands, which fill joints with widths up to 1-2 mm. We presume that the joints have filled in with more concentrated colloidal solutions than those in the macro-bands, most likely due to extreme boiling of fluids in open or quasi-open hydrothermal system. Electrum in the micro-bands forms transverse dendrite- and chain-like aggregates as well as oval clots along the banding, all of globular morphology. We explain these locations of electrum with reorientation of aggregated electrum globules during plastic deformation of a mixed electrum-silicate gel and in result from the consequent crystallization of silicates. At the same time, electrum is not present in pores and cracks of syneresis, which indicates that it had not been a soluble phase at the time of syneresis, rather colloidal particles. Electrum also forms dense sprinkles of globular morphology deposited in open space on the surfaces of some quartz-adularia bands, due to a condensation of gaseous phase, separated during the boiling of fluids. We found that the electrum-rich quartz-adularia micro

  14. Isolation, characterization, and localization of AgaSGNH cDNA: a new SGNH-motif plant hydrolase specific to Agave americana L. leaf epidermis.

    PubMed

    Reina, José J; Guerrero, Consuelo; Heredia, Antonio

    2007-01-01

    GDSL and SGNH hydrolases are lipases involved in a wide range of functions, behaving in many cases as bifunctional enzymes. In this work, the isolation and characterization of AgaSGNH, a cDNA encoding a member of the SGNH-hydrolase superfamily from young leaf epidermis of the monocot Agave americana L., is reported. The protein possesses a typical signal peptide at its N-terminus that allows its secretion to the epidermis cell wall, as verified by immunolocalization experiments. In addition, the AgaSGNH sequence contains a His-Leu-Gly-Ala-Glu (HLGAE) motif which is similar to that observed in other plant acyltransferases. Expression levels by northern blot and in situ localization of the corresponding mRNA, as well as the immunolocalization of the protein in Agave young leaves indicate that the protein is specifically present in the epidermal cells. The detailed study performed in different parts of the Agave leaf confirms two aspects: first, the expression of AgaSGNH is limited to the epidermis, and second, the maximum mRNA levels are found in the epidermis of the youngest zones of the leaf which are especially active in cutin biosynthesis. These levels dramatically decrease in the oldest zone of the leaf, where the presence of AgaSGNH mRNA is undetectable, and the biosynthesis of different cuticle components is severely reduced. These data could be compatible with the hypothesis that AgaSGNH could carry out both the hydrolysis and the transfer, from an activated acyl-CoA to a crescent cutin in Agave americana leaves and, therefore, be involved in the still unknown mechanism of plant cutin biosynthesis.

  15. The Math of Khan

    ERIC Educational Resources Information Center

    Schaffhauser, Dian

    2013-01-01

    It's like a dream come true for educators: free resources available wherever a web browser can operate and with nary an iota of advertising. What's not to like? What is it about this organization, whose mission is "to provide a free, world-class education for anyone anywhere," that has provoked such vitriol? Part of it is that when its videos have…

  16. Substrate Recognition and Hydrolysis by a Family 50 exo-β-Agarase, Aga50D, from the Marine Bacterium Saccharophagus degradans*

    PubMed Central

    Pluvinage, Benjamin; Hehemann, Jan-Hendrik; Boraston, Alisdair B.

    2013-01-01

    The bacteria that metabolize agarose use multiple enzymes of complementary specificities to hydrolyze the glycosidic linkages in agarose, a linear polymer comprising the repeating disaccharide subunit of neoagarobiose (3,6-anhydro-l-galactose-α-(1,3)-d-galactose) that are β-(1,4)-linked. Here we present the crystal structure of a glycoside hydrolase family 50 exo-β-agarase, Aga50D, from the marine microbe Saccharophagus degradans. This enzyme catalyzes a critical step in the metabolism of agarose by S. degradans through cleaving agarose oligomers into neoagarobiose products that can be further processed into monomers. The crystal structure of Aga50D to 1.9 Å resolution reveals a (β/α)8-barrel fold that is elaborated with a β-sandwich domain and extensive loops. The structures of catalytically inactivated Aga50D in complex with non-hydrolyzed neoagarotetraose (2.05 Å resolution) and neoagarooctaose (2.30 Å resolution) provide views of Michaelis complexes for a β-agarase. In these structures, the d-galactose residue in the −1 subsite is distorted into a 1S3 skew boat conformation. The relative positioning of the putative catalytic residues are most consistent with a retaining catalytic mechanism. Additionally, the neoagarooctaose complex showed that this extended substrate made substantial interactions with the β-sandwich domain, which resembles a carbohydrate-binding module, thus creating additional plus (+) subsites and funneling the polymeric substrate through the tunnel-shaped active site. A synthesis of these results in combination with an additional neoagarobiose product complex suggests a potential exo-processive mode of action of Aga50D on the agarose double helix. PMID:23921382

  17. Animal models of androgen-dependent disorders of the pilosebaceous apparatus. 1. The androchronogenetic alopecia (AGA) mouse as a model for male-pattern baldness.

    PubMed

    Matias, J R; Malloy, V; Orentreich, N

    1989-01-01

    The androchronogenetic alopecia (AGA) mouse if a mutant strain which expresses androgen-dependent baldness. Daily s.c. injection of testosterone (T) induced thinning of the hair coat along the upper dorsum after 4 weeks of treatment. After 12 to 14 weeks this diffuse alopecia eventually eveloped into a bald area which extended to the middorsum. Dihydrotestosterone was more effective than T in stimulating the onset of AGA. In this model, T produced the alopecia by decreasing the rate of hair growth, decreasing the duration of anagen, and markedly prolonging the duration of telogen. When applied topically at a concentration of 5%, cyproterone acetate delayed the progression of the T-mediated hair loss. However, this inhibitory effect occurred through systemic means as evidenced by decrease in the size of the submaxillary gland. Chronic feeding of androgen-treated female AGA mice with a diet containing 0.01% minoxidil also inhibited the development of alopecia. Skin and core temperatures were found to be higher in minoxidil-treated animals than in the placebo-treated controls. Minoxidil at a topical dose of 1% did not produce any effect. Increasing the dose to 2% caused a slight retardation of the development of alopecia. However, a 60% inhibition was observed at a topical dose of 5% minoxidil after 12 weeks of treatment (p less than 0.03). The data demonstrate that hair loss in the AGA mouse is androgen dependent and that this mutant strain can serve as a suitable model for the screening of compounds, such as antiandrogens and vasodilators, which may influence the balding process. PMID:2774656

  18. Association of cord blood des-acyl ghrelin with birth weight, and placental GHS-R1 receptor expression in SGA, AGA, and LGA newborns.

    PubMed

    González-Domínguez, Martha I; Lazo-de-la-Vega-Monroy, Maria-Luisa; Zaina, Silvio; Sabanero, Myrna; Daza-Benítez, Leonel; Malacara, Juan Manuel; Barbosa-Sabanero, Gloria

    2016-07-01

    Although ghrelin in cord blood has been associated to birth weight, its role in fetal and postnatal growth has not been elucidated. The aim of this study was to analyze total ghrelin, acyl ghrelin (AG), and des-acyl ghrelin (DAG) in cord blood of newborns with idiopathic birth weight alterations, and to evaluate protein expression of placental GHS-R1, in order to investigate their correlation with birth weight and placental weight. We performed a cross-sectional comparative study in umbilical cord blood and placentas from healthy mothers of SGA, AGA, and LGA (small, adequate and large for gestational age) term newborns (n = 20 per group). Cord blood total ghrelin, AG, and DAG were measured by ELISA, and placental GHS-R1 expression was evaluated by Western blot. Cord blood DAG was higher in SGA compared to AGA newborns (902.1 ± 109.1 and 597.4 ± 58.2 pg/ml, respectively, p = 0.01) while LGA and AGA showed similar values (627.2 ± 76.4 pg/ml for LGA, p = 0.80). DAG negatively correlated with birthweight (r = -0.31, p = 0.02) and placental weight (r = -0.33, p = 0.02). No differences in AG or total ghrelin were found. GHS-R1 protein in placenta was not differentially expressed among SGA, AGA, and LGA. Our results suggest a role of DAG in intrauterine growth. Further studies are needed in order to elucidate the mechanisms by which DAG participates in fetal growth.

  19. Metabolism of medium- and long-chain fatty acids by isolated hepatocytes from small-for-gestational-age (SGA) and appropriate for-gestational-age (AGA) piglets

    SciTech Connect

    Odle, J.; Benevenga, N.J.; Crenshaw, T.D. )

    1990-02-26

    Hepatocytes were isolated from full-term, SGA and AGA piglets at 6 or 48 hours postpartum and were incubated with 1 mM (1-{sup 14}C)-octanoate (C8), -nonanoate (C9) or-oleate (C18:1). The cells oxidized (natom 1-C/(h 10{sup 6} cells)) C9 to Co{sub 2} (12.5) and acid soluble products (28.9) faster than C8 (10.9, 20.6, respectively), and both were oxidized faster than C18:1 (3.9, 9.9) regardless of the piglet age or weight. Oleate accumulated in lipid products 8-fold faster than C8 and C9. No differences between cells from SGA and AGA piglets were detected. Recovery of 1-C in CO{sub 2} was 48% higher in incubations with cells from 48 hours old than from 6 hour old piglets. This increase was attributable to a 70% higher oxygen consumption by 48 hour old cells. Theoretical oxygen consumption rates were computed from the fatty acid flux data and compared to measured oxygen consumption. hepatocytes from SGA and AGA piglets were equally capable of satisfying more that 57% of their energy needs from fatty acid oxidation. The oxygen consumption attributable to C9 metabolism was 30% higher than observed for C8 and C18:1. All fatty acids apparently spared endogenous fuels to a greater degree in 6 hour than in 48 hour piglets.

  20. α-Galactosidase/sucrose kinase (AgaSK), a novel bifunctional enzyme from the human microbiome coupling galactosidase and kinase activities.

    PubMed

    Bruel, Laëtitia; Sulzenbacher, Gerlind; Cervera Tison, Marine; Pujol, Ange; Nicoletti, Cendrine; Perrier, Josette; Galinier, Anne; Ropartz, David; Fons, Michel; Pompeo, Frédérique; Giardina, Thierry

    2011-11-25

    α-Galactosides are non-digestible carbohydrates widely distributed in plants. They are a potential source of energy in our daily food, and their assimilation by microbiota may play a role in obesity. In the intestinal tract, they are degraded by microbial glycosidases, which are often modular enzymes with catalytic domains linked to carbohydrate-binding modules. Here we introduce a bifunctional enzyme from the human intestinal bacterium Ruminococcus gnavus E1, α-galactosidase/sucrose kinase (AgaSK). Sequence analysis showed that AgaSK is composed of two domains: one closely related to α-galactosidases from glycoside hydrolase family GH36 and the other containing a nucleotide-binding motif. Its biochemical characterization showed that AgaSK is able to hydrolyze melibiose and raffinose to galactose and either glucose or sucrose, respectively, and to specifically phosphorylate sucrose on the C6 position of glucose in the presence of ATP. The production of sucrose-6-P directly from raffinose points toward a glycolytic pathway in bacteria, not described so far. The crystal structures of the galactosidase domain in the apo form and in complex with the product shed light onto the reaction and substrate recognition mechanisms and highlight an oligomeric state necessary for efficient substrate binding and suggesting a cross-talk between the galactose and kinase domains.

  1. Induction process of trainees in pathology residency

    PubMed Central

    Siddiqui, Imran; Ali, Natasha

    2016-01-01

    This article describes the evolution of the induction process of pathology residency at The Aga Khan University hospital. The Department of Postgraduate Medical Education was established in 1985. The induction process is an exhaustive exercise that includes an admission test held simultaneously in Karachi, Hyderabad, Lahore, and Rawalpindi, followed by an interview of the shortlisted candidates. The pathology residency program was started 25 years ago and since then the induction process has undergone major changes with the course of time. PMID:27313487

  2. Water resources and related geology of Dera Ismail Khan district, West Pakistan, with reference to the availability of ground water for development

    USGS Publications Warehouse

    Hood, J.W.; Khan, Lutfe Ali; Jawaid, Khalid

    1970-01-01

    Dera Ismail (D.I.) Khan District contains an area of 3,450 square miles between the right bank of the Indus River and the Sulaiman Range in westcentral West Pakistan. Agriculture is the principal source of income in the District, but only a small part of the arable land is fully utilized. The region is semiarid and has an average annual rainfall of about 9 inches and a potential evapotranspirational rate of eight to nine times the annual rainfall. Thus, rainfall alone is not adequate for high-intensity cropping. Irrigation is practiced near the Indus River; the Paharpur Canal is used, as well as the traditional inundation method. Elsewhere in the District, adequate water is supplied to local areas by karezes, perennial streams from the mountains, and some recently installed tubewells (see 'Glossary'). Further development of ground-water supplies would permit a more effective utilization of most of the presently tilled land and would allow additional land to be farmed. D.I. Khan District is primarily an alluvial plain that slopes from the mountain ranges in the northern and western parts of the District toward the Indus River. Rocks in the bordering mountains are of Paleozoic to early or middle Pleistocene age. The unconsolidated rocks of the plain, of middle (?) Pleistocene to Holocene (Recent) age, consist of piedmont deposits derived from the hills to the north and west and of alluvium laid down by the Indus River. These deposits interfinger in a transitional zone about 8 to 12 miles west of the river. Lithologic and structural features indicate that the unconsolidated rocks possibly may be divided into broad units. The investigations in D.I. Khan District have revealed two main areas of potential ground-water development based on considerations of both permeability and chemical quality of the ground water: 1. A belt about 10 miles wide parallels the Indus River from the Khisor Range southward to the area immediately south of D.I. Khan town. In this belt, the

  3. Quaternary selenostannates Na 2- xGa 2- xSn 1+ xSe 6 and AGaSnSe 4 ( A=K, Rb, and Cs) through rapid cooling of melts. Kinetics versus thermodynamics in the polymorphism of AGaSnSe 4

    NASA Astrophysics Data System (ADS)

    Hwang, Seong-Ju; Iyer, Ratnasabapathy G.; Kanatzidis, Mercouri G.

    2004-10-01

    The quaternary alkali-metal gallium selenostannates, Na2-xGa2-xSn1+xSe6 and AGaSnSe4 (A=K, Rb, and Cs), were synthesized by reacting alkali-metal selenide, Ga, Sn, and Se with a flame melting-rapid cooling method. Na2-xGa2-xSn1+xSe6 crystallizes in the non-centrosymmetric space group C2 with cell constants a=13.308(3) Å, b=7.594(2) Å, c=13.842(3) Å, β=118.730(4)°, V=1226.7(5) Å3. α-KGaSnSe4 crystallizes in the tetragonal space group I4/mcm with a=8.186(5) Å and c=6.403(5) Å, V=429.1(5) Å3. β-KGaSnSe4 crystallizes in the space group P21/c with cell constants a=7.490(2) Å, b=12.578(3) Å, c=18.306(5) Å, β=98.653(5)°, V=1705.0(8) Å3. The unit cell of isostructural RbGaSnSe4 is a=7.567(2) Å, b=12.656(3) Å, c=18.277(4) Å, β=95.924(4)°, V=1741.1(7) Å3. CsGaSnSe4 crystallizes in the orthorhombic space group Pmcn with a=7.679(2) Å, b=12.655(3) Å, c=18.278(5) Å, V=1776.1(8) Å3. The structure of Na2-xGa2-xSn1+xSe6 consists of a polar three-dimensional network of trimeric (Sn,Ga)3Se9 units with Na atoms located in tunnels. The AGaSnSe4 possess layered structures. The compounds show nearly the same Raman spectral features, except for Na2-xGa2-xSn1+xSe6. Optical band gaps, determined from UV-Vis spectroscopy, range from 1.50 eV in Na2-xGa2-xSn1+xSe6 to 1.97 eV in CsGaSnSe4. Cooling of the melts of KGaSnSe4 and RbGaSnSe4 produces only kinetically stable products. The thermodynamically stable product is accessible under extended annealing, which leads to the so-called γ-form (BaGa2S4-type) of these compounds.

  4. True knot of umbilical cord: Case report and review of literat.

    PubMed

    Khan, Momna; Zahiruddin, Sana; Iftikhar, Maria

    2016-08-01

    True knot of umbilical cord (TKUC) is a rare abnormality. When it becomes tight, it may lead to the obstruction of the foetal circulation and intrauterine death (IUD). We present two cases of TKUC managed at The Aga Khan University Hospital with two extreme outcomes. A 22 years old primigravida was diagnosed with unexplained intrauterine foetal demise at 28th week gestation. She delivered vaginally after induction and tight TKUC was identified as a cause of IUD. The second patient delivered an alive healthy male baby vaginally who was found to have a lose TKUC. PMID:27524546

  5. Medical education: meeting the challenge of implementing primary health care in sub-Saharan Africa.

    PubMed

    Ahmed, Mushtaq; Vellani, Camer W; Awiti, Alex O

    2011-06-01

    Medical education in sub-Saharan Africa must be defined by its health needs and the health care services required. The sociodemographic milieu that determines the disease pattern makes a compelling case for primary health care in the context of community participation and multisector community development as the driver of a plan for medical education, in tandem with clinicians' role in continuity of care. Such ideas have been derived from the experience of planning for undergraduate medical education at the Aga Khan University Medical College, Nairobi, whose curriculum incorporates broad-based general education and liberal arts principles.

  6. One plug may not be enough: a novel technique for the occlusion of high-flow vascular connections: combined AGA vascular plug II and coil occlusion of a sequester artery in a patient with Scimitar Syndrome.

    PubMed

    Weems, Courtney; Peuster, Matthias; Trivedi, Kalyani

    2011-11-01

    A 5-year-old male presented at birth with tachypnea and abnormal chest x-ray. He was diagnosed with Scimitar Syndrome in the neonatal period by ultrasound, which revealed partial anomalous pulmonary venous return (PAPVR) of the right pulmonary vein to the inferior vena cava, as well as dextroversion of the heart, hypoplastic right pulmonary artery, and right lung hypoplasia. Due to the large shunt volume, the patient exhibited signs of congestive heart failure with dilatation of the left atrium and left ventricle. The patient underwent cardiac catheterization, which confirmed the presence of PAPVR as well as a large aorto-pulmonary collateral connecting the sequester to the descending aorta. Due to the high flow within the sequester artery a combined "sandwich" technique was used with two AGA vascular plugs (II) and MWCE Tornado coils. Complete closure of the collateral was achieved. PMID:22028049

  7. Universal Usability

    NASA Astrophysics Data System (ADS)

    Horton, Sarah; Leventhal, Laura

    Universal usability of World Wide Web (Web) environments—that is, having 90% of households as successful users—requires universal access, usability, and universal design. Factors such as Web technology and user-centered design contribute to universal access and usability, but key to universal usability is a universal design methodology. Universal design principles for the Web follow from universal design principles for the built environment, and emphasize perceptibility, self-explanation, and tailorability for the user. Universally usable Web environments offer the benefit of expanded participation, as well as the unanticipated benefits that generally follow from innovative design initiatives. However, to achieve Web universal usability, Web designers need tools that facilitate the design of intuitive interfaces without sacrificing universal access.

  8. Implementation lessons on the use of innovation in information technology in the developing world.

    PubMed

    Hasham, Salim; Sayani, Saleem

    2013-01-01

    Information Technology (IT) innovation and its impact on health care is of particular relevance to the developing world, which spends a fraction of what health systems spend in OECD countries. Given the issues of accessibility, affordability and quality health services in the developing world, IT can play an important role by bringing marginalized communities closer to health care systems. Aga Khan University (AKU) and the eHealth Resource Center (eHRC), which are part of Aga Khan Development Network (AKDN), are active in the developing regions of East Africa, Central Asia and South East Asia and are currently initiating new changes in the use of IT and also the manner in which it is deployed. The eHealth programmes implemented and the lessons learned by AKU and eHRC in achieving its core values of impact, access, relevance, and quality through implementation of these innovations are described. These can be of value to health systems and academic medical centres in the developing world wanting to leverage scarce resources to create meaningful impact using IT.

  9. Baby universes.

    NASA Astrophysics Data System (ADS)

    Strominger, Andrew

    The following sections are included: * INTRODUCTION * TOPOLOGY CHANGE AND THIRD QUANTIZATION IN 0+1 DIMENSIONS * Third Quantization of Free One-dimensional Universes * Third Quantization of Interacting One-Dimensional Universes * The Single-Universe Approximation and Dynamical Determination of Coupling Constants * The Third Quantized Uncertainty Principle * THIRD QUANTIZATION IN 3+1 DIMENSIONS * The Gauge Invariant Action * Relation to Other Formalisms * PARENT AND BABY UNIVERSES * The Hybrid Action * Baby Universe Field Operators and Spacetime Couplings * INSTANTONS-FROM QUANTUM MECHANICS TO QUANTUM GRAVITY * Quantum Mechanics * Quantum Field Theory * Quantum Gravity * Axionic Instantons * The Small Expansion Parameter * THE AXION MODEL AND THE INSTANTON APPROXIMATION * THE COSMOLOGICAL CONSTANT * The Hawking-Baum Argument * Baby Universes and Coleman's Argument * ACKNOWLEDGEMENTS * REFERENCES

  10. Health needs and eHealth readiness assessment of health care organizations in Kabul and Bamyan, Afghanistan.

    PubMed

    Durrani, H; Khoja, S; Naseem, A; Scott, R E; Gul, A; Jan, R

    2012-06-01

    This study assessed the need and readiness of health care institutions in Kabul and Bamyan, Afghanistan for successful implementation of information and communication technology in health care (eHealth). A mixed methods design was adopted at 2 institutions in the Aga Khan Development Network in Afghanistan: the French Medical Institute for Children in Kabul and Bamyan Provincial Hospital, Bamyan. Information for the needs assessment was obtained from interviews and focus groups and eHealth readiness was assessed using a validated survey tool. The needs of institutions in the Aga Khan Development Network in Afghanistan were categorized as follows: provision of care needs; learning needs; and information management needs. eHealth readiness on average was lower in Bamyan compared with Kabul in all areas of the readiness assessment. Other institutions in Afghanistan may benefit from adopting the model of needs and readiness assessment used for Aga Khan Development Network institutions. PMID:22888626

  11. Innovative Universities.

    ERIC Educational Resources Information Center

    Barsi, Louis M.; Kaebnick, Gweneth W.

    1989-01-01

    The phenomenon of innovation within the university is examined, noting the possibility of innovation as a key to college vitality. A study was conducted using a group of institutions that demonstrated recent innovative spirit. Members of the American Association of State Colleges and Universities (AASCU), each has been recognized in an annual…

  12. Challenged Universities.

    ERIC Educational Resources Information Center

    Gillis, Malcolm

    1995-01-01

    Pricing and financial aid issues affecting research universities, particularly private universities, are examined, including underpricing of services, decentralization, and diversification of higher education in the United States. The growth of federal regulation is also considered, especially the State Postsecondary Review Entities (SPREs)…

  13. Universal Expansion.

    ERIC Educational Resources Information Center

    McArdle, Heather K.

    1997-01-01

    Describes a week-long activity for general to honors-level students that addresses Hubble's law and the universal expansion theory. Uses a discrepant event-type activity to lead up to the abstract principles of the universal expansion theory. (JRH)

  14. Overseas Universities.

    ERIC Educational Resources Information Center

    Inter-University Council for Higher Education Overseas, London (England).

    The following articles and reports are presented in this publication of "Overseas Universities:""Appropriate Technology and University Education," by John Twidell; "The Training of Engineering Staff for Higher Education Institutions in Developing Countries," by D. W. Daniel, C. A. Leal, J. H. Maynes and T. Wilmore; "A Case Study of an Academic…

  15. University Futures

    ERIC Educational Resources Information Center

    Smith, Richard

    2012-01-01

    Recent radical changes to university education in England have been discussed largely in terms of the arrangements for transferring funding from the state to the student as consumer, with little discussion of what universities are for. It is important, while challenging the economic rationale for the new system, to resist talking about higher…

  16. University Architecture.

    ERIC Educational Resources Information Center

    Edwards, Brian

    This book explores how universities relate their built environment to academic discourse, asserting that the character of universities is often a charming dialogue between order and disarray. It contains numerous photographs and building plans for example campuses throughout the world. In part 1, "The Campus," chapters are: (1) "Academic Mission…

  17. Our Universe

    NASA Astrophysics Data System (ADS)

    Stern, Alan

    2001-03-01

    The Universe in which we live is unimaginably vast and ancient, with countless star systems, galaxies, and extraordinary phenomena such as black holes, dark matter, and gamma ray bursts. What phenomena remain mysteries, even to seasoned scientists? Our Universe is a fascinating collection of essays by some of the world's foremost astrophysicists. Some are theorists, some computational modelers, some observers, but all offer their insights into the most cutting-edge, difficult, and curious aspects of astrophysics. Compiled, the essays describe more than the latest techniques and findings. Each of the ten contributors offers a more personal perspective on their work, revealing what motivates them and how their careers and lives have been shaped by their desire to understand our universe. S. Alan Stern is Director of the Department of Space Studies at Southwest Research Institute in Boulder, Colorado. He is a planetary scientist and astrophysicist with both observational and theoretical interests. Stern is an avid pilot and a principal investigator in NASA's planetary research program, and he was selected to be a NASA space shuttle mission specialist finalist. He is the author of more than 100 papers and popular articles. His most recent book is Pluto & Charon (Wiley, 1997). Contributors: Dr. John Huchra, Harvard University Dr. Esther Hu, University of Hawaii, Honolulu Dr. John Mather, NASA Goddard Space Flight Center Dr. Nick Gnedin, University of Colorado, Boulder Dr. Doug Richstone, University of Michigan, Ann Arbor Dr. Bohdan Paczynski, Princeton University, NJ Dr. Megan Donahue, Space Telescope Science Institute, Baltimore, MD Dr. Jerry Ostriker, Princeton University, New Jersey G. Bothun, University of Oregon, Eugene

  18. Universe Awareness

    NASA Astrophysics Data System (ADS)

    Sankatsing Nava, Tibisay; Russo, Pedro

    2015-08-01

    Universe Awareness (UNAWE) is an educational programme coordinated by Leiden University that uses the beauty and grandeur of the Universe to encourage young children, particularly those from an underprivileged background, to have an interest in science and technology and foster their sense of global citizenship from the earliest age.UNAWE's twofold vision uses our Universe to inspire and motivate very young children: the excitement of the Universe provides an exciting introduction to science and technology, while the vastness and beauty of the Universe helps broaden the mind and stimulate a sense of global citizenship and tolerance. UNAWE's goals are accomplished through four main activities: the coordination of a global network of more than 1000 astronomers, teachers and educators from more than 60 countries, development of educational resources, teacher training activities and evaluation of educational activities.Between 2011 and 2013, EU-UNAWE, the European branch of UNAWE, was funded by the European Commission to implement a project in 5 EU countries and South Africa. This project has been concluded successfully. Since then, the global project Universe Awareness has continued to grow with an expanding international network, new educational resources and teacher trainings and a planned International Workshop in collaboration with ESA in October 2015, among other activities.

  19. Musculoskeletal imaging insight 2015: Kenya.

    PubMed

    Stevens, Kathryn J; Mutiso, Kavulani; Sconfienza, Luca Maria; Monu, Johnny

    2016-07-01

    Over the past 6 years the International Skeletal Society (ISS) outreach programs have become popular amongst the various radiology organizations in sub-Saharan Africa. So much so that that the ISS outreach is now routinely expected to participate in many of the international radiology conferences in that part of the world. The organizational planning for an outreach visit to Kenya took place over a 3-year period. Eventually a double-headed event; the seventh and eighth sub-Saharan outreach efforts were organized in Nairobi and in Mombasa, Kenya. The Nairobi outreach was an educational course on musculoskeletal imaging at the University of Nairobi and the Aga Khan University in Nairobi from 26 to 28 May 2015. The Mombasa outreach was organized in collaboration with the African Society of Radiology (ASR) at their annual meeting in Mombasa from 30 May to 2 June 2015. PMID:27115883

  20. Einstein's Universe.

    ERIC Educational Resources Information Center

    Carlson, Eric; Wald, Robert

    1979-01-01

    Presents a guide to be used by students and teachers in conjunction with a television program about Einstein. Provides general information about special and general relativity, and the universe. Includes questions for discussion after each section and a bibliography. (MA)

  1. Universal Truths.

    ERIC Educational Resources Information Center

    Horgan, John

    1990-01-01

    Described is a symposium of Nobel laureates held in the summer of 1990 to discuss cosmology. Different views on the structure and evolution of the universe are presented. Evidence for different theories of cosmology is discussed. (CW)

  2. Expanding Universe

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    A universe that expands with time. Although the possibility had been raised earlier through theoretical work carried out by Willem de Sitter (1872-1934), Aleksandr Friedmann (1888-1925), and the Abbé Georges Lemaître (1894-1966), that our universe is expanding was first demonstrated observationally in 1929 by Edwin P Hubble (1889-1953), through his measurements of the redshifts in the spectra of ...

  3. Undulant Universe

    SciTech Connect

    Barenboim, Gabriela; Mena, Olga; Quigg, Chris; /Fermilab

    2004-12-01

    If the equation of state for ''dark energy'' varies periodically, the expansion of the Universe may have undergone alternating eras of acceleration and deceleration. We examine a specific form that survives existing observational tests, does not single out the present state of the Universe as exceptional, and suggests a future much like the matter-dominated past: a smooth expansion without a final inflationary epoch.

  4. Plasma universe

    NASA Technical Reports Server (NTRS)

    Alfven, H.

    1986-01-01

    Traditionally the views on the cosmic environent have been based on observations in the visual octave of the electromagnetic spectrum, during the last half-century supplemented by infrared and radio observations. Space research has opened the full spectrum. Of special importance are the X-ray-gamma-ray regions, in which a number of unexpected phenomena have been discovered. Radiations in these regions are likely to originate mainly from magnetised cosmic plasmas. Such a medium may also emit synchrotron radiation which is observable in the radio region. If a model of the universe is based on the plasma phenomena mentioned it is found that the plasma universe is drastically different from the traditional visual universe. Information about the plasma universe can also be obtained by extrapolation of laboratory experiments and magnetospheric in situ measurements of plasmas. This approach is possible because it is likely that the basic properties of plasmas are the same everywhere. In order to test the usefulness of the plasma universe model it is applied to cosmogony. Such an approach seems to be rather successful. For example, the complicated structure of the Saturnian C ring can be accounted for. It is possible to reconstruct certain phenomena 4 to 5 billions of years ago with an accuracy of better than 1%.

  5. University Builders.

    ERIC Educational Resources Information Center

    Pearce, Martin

    This publication explores a diverse collection of new university buildings. Ranging from the design of vast new campuses, such as that by Wilford and Stirling at Temasek, Singapore, through to the relatively modest yet strategically important, such as the intervention by Allies and Morrison at Southampton, this book examines the new higher…

  6. Universities 2035

    ERIC Educational Resources Information Center

    Thrift, Nigel

    2016-01-01

    This paper examines the future of Western higher education. Situated midway between an analysis and a polemic, it concerns itself with how we might begin to actively design the universities of the future. That will require a productionist account of higher education which is so far sadly lacking. But there are signs that such an account might be…

  7. Universal Studies.

    ERIC Educational Resources Information Center

    Kobryn, Nancy M.

    Universal Studies, a study program designed to help students develop emotionally, intellectually, and spiritually, is described. Development of the personality and character of the individual is emphasized, as are innovation, creativity, individualized instruction, independent learning, and realizing human potential. These goals are characterized…

  8. Widener University

    ERIC Educational Resources Information Center

    Valesey, Brigitte; Allen, Jo

    2009-01-01

    Founded in 1821, Widener University is a two-state (Pennsylvania and Delaware), four-campus, eight-college private institution serving approximately 6,700 students. Following arrival of the new senior vice president and provost in 2004 and subsequent reorganization of vice presidential responsibilities, Student Affairs is now led by a dean of…

  9. Morbidities of cervical cerclage: experience at a tertiary referral center.

    PubMed

    Mubasshir, Saba; Munim, Shama; Zainab, Ghulam

    2012-06-01

    The Perinatal morbidity and mortality associated with pre-term delivery is well known. Cervical incompetence or short cervix is a risk factor for the condition and cervical cerclage is the management option for such cases. The objective of the study was to determine the frequency of operative morbidities of cervical cerclage. All women undergoing cervical cerclage from April 2007 to December 2009 at the Aga Khan University Hospital served as the study subjects. Findings suggested that the risk of developing ruptured membranes after cervical cerclage was 10% and that of pregnancy loss was 8.6%. The risk of cerclage-associated complications like rupture of membranes, bleeding and chorioamnionitis was small. The risk of delivery before 34 weeks of gestation was 15.7%.

  10. Unintentional Injuries In Children: Are Our Homes Safe?

    PubMed

    Faruque, Ahmad Vaqas; Mateen Khan, Muhammad Arif

    2016-05-01

    Unintentional injuries are a leading cause of death in childhood globally. Injuries lead to emotional trauma and financial burden for children, parents, and society. Here are the frequencies of unintentional injuries in children presented to the emergency and paediatric surgery clinics of the Aga Khan University Hospital, Karachi, Pakistan, from January to December 2012. Aretrospective chart review of children aged 0 day to 14 years presented with falls, burns, foreign body ingestion or inhalation, poisoning, fingers caught in doors, electrocution injuries and drowning, was conducted. Atotal of 165 children were included. Domestic injuries were frequently occurring injuries in our set-up which could be prevented by doing small adjustments to make the home safe for children. PMID:27225158

  11. Comparison of Risk Factors and survival of Type 1 and Type II Endometrial Cancers

    PubMed Central

    Malik, Tahira Y.; Chishti, Uzma; Aziz, Aliya B.; Sheikh, Irfan

    2016-01-01

    Objective: To compare risk factors and progression free survival of type 1 & 2 endometrial cancers. Methods: A retrospective analysis of 149 patients with early stage endometrial carcinoma treated between 1997 and 2012 in Aga Khan University Hospital, Karachi was performed. Results: A total of 149 patients were analyzed. Type I tumors accounted for 92% of cases in the study while 8% were type II tumors. The mean age, BMI, parity, co-morbidities (hypertension & Diabetes), family history and history of polycystic disease were comparable in both groups. Overall better survival (113 Vs 24 months) was observed for type I endometrial cancer. Conclusion: Both types of endometrial cancer may share common etiologic factors. Despite the limitation of small numbers in one group this study confirms better survival in type 1 endometrial cancer. PMID:27648033

  12. Short report: Diagnostic testing for hemorrhagic fevers in Pakistan: 2007-2013.

    PubMed

    Hasan, Zahra; Atkinson, Barry; Jamil, Bushra; Samreen, Azra; Altaf, Lamia; Hewson, Roger

    2014-12-01

    Crimean-Congo hemorrhagic fever virus (CCHFV) and dengue virus (DENV) are endemic to Pakistan. Patients presenting with symptoms of fever, bleeding, and rash cannot be distinguished without appropriate testing. We report data on 354 samples tested for CCHFV at The Aga Khan University Hospital in Pakistan between 2007 and 2013. All samples were tested for the presence of CCHFV RNA. Some samples were also tested for DENV RNA, NS-1 antigen, and/or reactive immunoglobulin M antibodies. Of 354 clinical specimens screened for CCHFV, 52 specimens were positive, with 24 cases in 2013 alone. Most cases were from Sindh and Baluchistan, which border other CCHFV-endemic regions: Iran and Afghanistan. Among CCHFV-negative samples, 168 samples were tested for DENV, and 36% of these samples were found to be DENV-positive. Rapid differentiation of CCHFV and DENV can prevent nosocomial transmission and result in time and cost savings for patients and healthcare workers.

  13. Diagnostic Testing for Hemorrhagic Fevers in Pakistan: 2007–2013

    PubMed Central

    Hasan, Zahra; Atkinson, Barry; Jamil, Bushra; Samreen, Azra; Altaf, Lamia; Hewson, Roger

    2014-01-01

    Crimean–Congo hemorrhagic fever virus (CCHFV) and dengue virus (DENV) are endemic to Pakistan. Patients presenting with symptoms of fever, bleeding, and rash cannot be distinguished without appropriate testing. We report data on 354 samples tested for CCHFV at The Aga Khan University Hospital in Pakistan between 2007 and 2013. All samples were tested for the presence of CCHFV RNA. Some samples were also tested for DENV RNA, NS-1 antigen, and/or reactive immunoglobulin M antibodies. Of 354 clinical specimens screened for CCHFV, 52 specimens were positive, with 24 cases in 2013 alone. Most cases were from Sindh and Baluchistan, which border other CCHFV-endemic regions: Iran and Afghanistan. Among CCHFV-negative samples, 168 samples were tested for DENV, and 36% of these samples were found to be DENV-positive. Rapid differentiation of CCHFV and DENV can prevent nosocomial transmission and result in time and cost savings for patients and healthcare workers. PMID:25311694

  14. Mammary Analogue Secretory Carcinoma of the Parotid Gland: A Third World Country Perspective—A Case Series

    PubMed Central

    Salat, Huzaifah; Mumtaz, Ramiz; Ikram, Mubasher; Din, Nasir Ud

    2015-01-01

    Mammary analogue secretory carcinoma (MASC) is a recently described pathological entity in major salivary glands, which was first described by Skálová et al. in 2010. Since then only a limited number of case reports/series have been published describing this tumor with the majority of them discussing the genetic and cytoarchitectural aspect of this tumor. Keeping this in view with the lack of clinical correlation with regard to this tumor, we present our approach to management of two such cases which, according to the best of our knowledge, are the first 2 cases presenting in the South Asian continent. Both patients were diagnosed and managed at Aga Khan University Hospital, Karachi, Pakistan. PMID:26783481

  15. Osteoid Osteoma of acetabulum, a rare presentation.

    PubMed

    Ashraf, Irfan; Kanwal, Sidra; Hashmi, Pervaiz

    2015-05-01

    The case of a relatively frequent benign osteoblastic tumour, osteoid osteoma at an atypical site is presented. It was in a 20 year old man who attended the outpatient department of Aga Khan University Hospital, Karachi with pain in left groin since last 6 months which often occurred at night and was relieved by taking NSAIDs. X-ray failed to reveal the cause. CT scan showed central radiolucent nidus with surrounding sclerosis suggestive of osteoid osteoma in the left acetabulum. Acetabulum is a rare site for osteoid osteoma, the usual sites are diaphysis of long bones. Hence, the diagnosis is often difficult and delayed in such cases. CT scan, Bone scan and MRI, helped in diagnosing the condition. Resection of the lesion by open technique under fluoroscopic control was performed and histopathology confirmed the diagnosis.

  16. Mammary Analogue Secretory Carcinoma of the Parotid Gland: A Third World Country Perspective-A Case Series.

    PubMed

    Salat, Huzaifah; Mumtaz, Ramiz; Ikram, Mubasher; Din, Nasir Ud

    2015-01-01

    Mammary analogue secretory carcinoma (MASC) is a recently described pathological entity in major salivary glands, which was first described by Skálová et al. in 2010. Since then only a limited number of case reports/series have been published describing this tumor with the majority of them discussing the genetic and cytoarchitectural aspect of this tumor. Keeping this in view with the lack of clinical correlation with regard to this tumor, we present our approach to management of two such cases which, according to the best of our knowledge, are the first 2 cases presenting in the South Asian continent. Both patients were diagnosed and managed at Aga Khan University Hospital, Karachi, Pakistan.

  17. Comparison of Risk Factors and survival of Type 1 and Type II Endometrial Cancers

    PubMed Central

    Malik, Tahira Y.; Chishti, Uzma; Aziz, Aliya B.; Sheikh, Irfan

    2016-01-01

    Objective: To compare risk factors and progression free survival of type 1 & 2 endometrial cancers. Methods: A retrospective analysis of 149 patients with early stage endometrial carcinoma treated between 1997 and 2012 in Aga Khan University Hospital, Karachi was performed. Results: A total of 149 patients were analyzed. Type I tumors accounted for 92% of cases in the study while 8% were type II tumors. The mean age, BMI, parity, co-morbidities (hypertension & Diabetes), family history and history of polycystic disease were comparable in both groups. Overall better survival (113 Vs 24 months) was observed for type I endometrial cancer. Conclusion: Both types of endometrial cancer may share common etiologic factors. Despite the limitation of small numbers in one group this study confirms better survival in type 1 endometrial cancer.

  18. Expanding Universe

    NASA Astrophysics Data System (ADS)

    Schrödinger, E.

    2011-02-01

    Preface; Part I. The de Sitter Universe: 1. Synthetic construction; 2. The reduced model: geodesics; 3. The elliptic interpretation; 4. The static frame; 5. The determination of parallaxes; 6. The Lemaître-Robertson frame; Part II. The Theory of Geodesics: 7. On null geodesics; i. Determination of the parameter for null lines in special cases; ii. Frequency shift; 8. Free particles and light rays in general expanding spaces, flat or hyperspherical; i. Flat spaces; ii. Spherical spaces; iii. The red shift for spherical spaces; Part III. Waves in General Riemannian Space-Time: 9. The nature of our approximation; 10. The Hamilton-Jacobi theory in a gravitational field; 11. Procuring approximate solutions of the Hamilton-Jacobi equation from wave theory; Part IV. Waves in an Expanding Universe: 12. General considerations; 13. Proper vibrations and wave parcels; Bibliography.

  19. University lobbying

    NASA Astrophysics Data System (ADS)

    Richman, Barbara T.

    In the past year, an increasing number of individual academic institutions have lobbied in Congress for new science facilities funds thus circumventing the traditional peer review process of evaluating the merits of such facilities. As an attempt to stem this rising tide, the National Academy of Sciences (NAS) governing council and the Association of American Universities (AAU) recently and independently issued strong statements condemning lobbying by individual universities and enthusiastically supporting the peer review system.“Informed peer judgments on the scientific merits of specific proposals, in open competition, should be a central element in the awarding of all federal funds for science,” the NAS resolution stated. AAU, meanwhile, implored “scientists, leaders of America's universities, and members of Congress” to “refrain from actions that would make scientific decisions a test of political influence rather than a judgment on the quality of the work to be done.” Roughly 50 research institutions constitute AAU; the two AAU Canadian members did not vote on the consortium's statement.

  20. Appendicitis: a continuing challenge.

    PubMed

    Pal, K M; Khan, A

    1998-07-01

    Acute appendicitis is a common surgical emergency in urban setting, of a developing country. The computerised hospital patient database at Aga Khan University Hospital, Karachi, was utilised to obtain records of all adults with a histologically proven diagnosis of acute appendicitis. A review of patients treated over a 18 month period was undertaken. One hundred and three appendicectomies were performed for acute appendicitis during this period. The diagnosis was clinical in all cases. Investigations like leucocyte count and lower abdominal ultrasound scan were used to improve diagnostic accuracy without a clear advantage. A number of routine investigations like, haemoglobin estimation and urea, creatinine, electrolyte measurements, did not provide additional information. The duration of antibiotic treatment in acute simple appendicitis was empiric and could be reduced to a single preoperative dose. Peritoneal fluid culture studies had a poor yield (26%) and results were not found to effect management in acute simple appendicitis. The routine use of Ampicillin in all cases of bacterial peritonitis needs re-evaluation, as a high incidence (73%) of resistance was seen. Studies to define the role and duration of treatment, with a single antibiotic, in acute simple appendicitis should be undertaken. Acute appendicitis is probably the most frequently considered surgical differential diagnosis at any hospital dealing with acute surgical conditions. The established treatment continues to be surgical removal of the inflamed organ. The diagnosis and decision to operate both are accepted to be based on clinical judgement, though a number of investigative manoeuvres have been described to reduce the negative appendicectomy rate. Other areas of debate are the number and length of antibiotic treatment and use of bacterial culture studies in cases of simple acute appendicitis. To analyse present practice and identify areas for study and change, a retrospective study was

  1. Decoding mechanism of non-universal genetic codes in Loligo bleekeri mitochondria.

    PubMed

    Ohira, Takayuki; Suzuki, Takeo; Miyauchi, Kenjyo; Suzuki, Tsutomu; Yokobori, Shin-ichi; Yamagishi, Akihiko; Watanabe, Kimitsuna

    2013-03-15

    Non-universal genetic codes are frequently found in animal mitochondrial decoding systems. In squid mitochondria, four codons deviate from the universal genetic code, namely AUA, UGA, and AGA/AGG (AGR) for Met, Trp, and Ser, respectively. To understand the molecular basis for establishing the non-universal genetic code, we isolated and analyzed five mitochondrial tRNAs from a squid, Loligo bleekeri. Primary structures of the isolated tRNAs, including their post-transcriptional modifications, were analyzed by mass spectrometry. tRNA(Met)(AUR) possessed an unmodified cytidine at the first position of the anticodon, suggesting that the AUA codon is deciphered by CAU anticodon via non-canonical A-C pairing. We identified 5-taurinomethyluridine (τm(5)U) at the first position of the anticodon in tRNA(Trp)(UGR). τm(5)U enables tRNA(Trp) to decipher UGR codons as Trp. In addition, 5-taurinomethyl-2-thiouridine (τm(5)s(2)U) was found in mitochondrial tRNAs for Leu(UUR) and Lys in L. bleekeri. This is the first discovery of τm(5)U and τm(5)s(2)U in molluscan mitochondrial tRNAs.

  2. Open University

    SciTech Connect

    2006-01-18

    Michel Pentz est née en Afrique du Sud et venu au Cern en 1957 comme physicien et président de l'associaion du personnel. Il est également fondateur du mouvement Antiapartheid de Genève et a participé à la fondation de l'Open University en Grande-Bretagne. Il nous parle des contextes pédagogiques, culturels et nationaux dans lesquels la méthode peut s'appliquer.

  3. Open University

    ScienceCinema

    None

    2016-07-12

    Michel Pentz est née en Afrique du Sud et venu au Cern en 1957 comme physicien et président de l'associaion du personnel. Il est également fondateur du mouvement Antiapartheid de Genève et a participé à la fondation de l'Open University en Grande-Bretagne. Il nous parle des contextes pédagogiques, culturels et nationaux dans lesquels la méthode peut s'appliquer.

  4. Retraction of a paper containing plagiarized material: the prognostic value of serum troponin T in unstable angina. Gökhan Cin V, Gök H, Kaptanoğlu B. Int J Cardiol. 1996 Mar;53(3):237-44.

    PubMed

    Coats, Andrew J S

    2010-12-01

    On the 6th December 2008, in my role as Editor-in-Chief of the International Journal of Cardiology, I received an email from Professor Harold Garner of UT Southwestern Medical Center, Dallas. Professor Garner told me that using a new search engine methodology (eTBLAST) he and colleagues had identified a paper in the International Journal of Cardiology published in 1996 which had remarkable text and data similarity to an earlier paper published in 1992 in the New England Journal of Medicine. They had detected this similarity after randomly selecting citations from Medline and submitting them to the tool to find other highly similar citations as part of their NIH/R01 funded research on the ethics of publication. We have been notified that all such cases are reported in a database, Déjà Vu (http://spore.swmed.edu/dejavu/). We investigated the text of the two papers and we agreed that there was such a similarity that the later paper must have plagiarized the earlier paper, and in doing so infringed the copyright. In accordance with our previously published standards on ethical publishing in the Journal we hereby retract the paper "The prognostic value of serum troponin T in unstable angina. Gökhan Cin V, Gök H, Kaptanoğlu B. Int J Cardiol. 1996 Mar;53(3):237-44.".

  5. Improving Early-Grade Literacy in East Africa: Experimental Evidence from Kenya and Uganda

    ERIC Educational Resources Information Center

    Lucas, Adrienne M.; McEwan, Patrick J.; Ngware, Moses; Oketch, Moses

    2014-01-01

    Primary school enrollments have increased rapidly in sub-Saharan Africa, spurring concerns about low levels of learning. We analyze field experiments in Kenya and Uganda that assessed whether the Reading to Learn intervention, implemented by the Aga Khan Foundation in both countries, improved early-grade literacy as measured by common assessments.…

  6. Child health and education in Kenyan schools programmes.

    PubMed

    Fleming, J

    1991-03-01

    Jane Fleming describes the health education in schools programme launched by the Aga Khan Health Services in Kisumu, Kenya. The project has brought major improvements in child health and mortality rates as well as better health awareness to the community as a whole.

  7. Purdue University

    SciTech Connect

    Daly, P.; Grabowski, Z.; Mayer, R.H.

    1995-08-01

    The Purdue University group, including several thesis students, is working on a measurement of high-spin nuclear states at ATLAS. They use in-beam gamma-ray techniques to investigate several aspects of nuclear structure at high spin, testing the validity of shell-model calculations for high-spin-yrast states near Z = 50. The nuclei are produced via deep inelastic reactions, rather than with the more conventional fusion reactions. This technique allows the study of neutron-rich nuclei that cannot be studied by other means. The group is studying proton-rich nuclei with N{approximately}82 using the FMA and an electron spectrometer. Furthermore, D. Nisius is a Ph.D. student, resident at ANL, performing his thesis work under the supervision of R.V.F. Janssens.

  8. Universal molecular beacon-based tracer system for real-time polymerase chain reaction.

    PubMed

    Li, Xiaomin; Huang, Yong; Guan, Yuan; Zhao, Meiping; Li, Yuanzong

    2006-11-15

    DNA diagnostic has been moving from expensive, low-throughput, multistep methods to inexpensive, higher throughput, closed-tube, and automated methods. Fluorescence is the favored signaling technology for such assays. In this method, we describe a universal molecular beacon (U-MB) as the fluorescent tracer in the real-time PCR technique. A 5'-universal template primer (5'-UT primer) has been designed with a tail in complementary to the loop and 5'-side arm sequence of U-MB at the 5'-end of forward target specific primer. As PCR cycles increase, a new DNA fragment with a 5'-UT primer tail is synthesized, which is used as the template for next PCR cycle. As the reverse primer extends to the 5'-UT primer tail, the U-MB hybridized is displaced and the fluorescence from the fluorophore of the U-MB is quenched, indicating that the allele-specific PCR is in progress. This tracing system combined with an allele-specific reverse primer and vent (exo-) DNA polymerase, a polymerase that lacks 3'- to 5'-exonuclease activity, was used for the detection of point mutations of base G in codon 259 (AGA) of exon 7 of p53 gene on a panel of breast cancer individuals.

  9. University Handbook. University of Wisconsin, Whitewater.

    ERIC Educational Resources Information Center

    Wisconsin Univ., Whitewater.

    The University of Wisconsin-Whitewater's handbook is divided into major sections dealing with: the university; business services; university services; student matters; curricular matters; and personnel matters. Various topics are covered, including: tuition for senior citizens, medical insurance, risk management, degree requirements, student…

  10. The Global University Press

    ERIC Educational Resources Information Center

    Dougherty, Peter J.

    2012-01-01

    The modern world's understanding of American university press has long been shaped by university-press books. American university-press books are good international advertisements for the universities whose logos grace their spines. The growth of transnational scholarship and the expansion of digital communications networks are converging in ways…

  11. Motivating University Researchers

    ERIC Educational Resources Information Center

    Hendriks, Paul; Sousa, Celio

    2008-01-01

    This paper presents an empirical investigation into how universities approach the need and means for motivating university researchers through their management practices. The role of work motivation for this group deserves attention because pressures from outside and within the universities are said to have made university research less of a…

  12. New series of triple molybdates AgA3R(MoO4)5 (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) with framework structures and mobile silver ion sublattices

    NASA Astrophysics Data System (ADS)

    Kotova, Irina Yu.; Solodovnikov, Sergey F.; Solodovnikova, Zoya A.; Belov, Dmitry A.; Stefanovich, Sergey Yu.; Savina, Aleksandra A.; Khaikina, Elena G.

    2016-06-01

    Triple molybdates AgA3R(MoO4)5 (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg3In(MoO4)5 type were synthesized and single crystals of AgMg3R(MoO4)5 (R=Cr, Fe) were grown. In their structures, the MoO4 tetrahedra, pairs and trimers of edge-shared (Mg, R)O6 octahedra are connected by common vertices to form a 3D framework. Large framework cavities involve Ag+ cations disordered on three nearby positions with CN=3+1 or 4+1. Alternating (Mg, R)O6 octahedra and MoO4 tetrahedra in the framework form quadrangular windows penetrable for Ag+ at elevated temperatures. Above 653-673 K, the newly obtained molybdates demonstrate abrupt reduction of the activation energy to 0.4-0.6 eV. At 773 K, AgMg3Al(MoO4)5 shows electric conductivity 2.5·10-2 S/cm and Ea=0.39 eV compatible with characteristics of the best ionic conductors of the NASICON type.

  13. [To promote the change of health education orientation and to incorporate the Spanish universities to the task].

    PubMed

    García Martínez, Alfonso

    2004-01-01

    The problem health education faces in Spanish schools is the inconsistency between objectives and means. Therefore, it is common to find health education initiatives limited by not only lack of institutional support and training of professionals, but also by its adherence to a theory-based learning. This article analyses the need for a practical alternative, which would involve researchers/teachers and students in thinking and building the best health practices for them and their community. Parent-like behaviour, based on information and/or persuasion, looks to protect adolescent health and well-being until they are able to take on responsibility of their own, despite the fact that adolescents' search for knowledge influences their own perceptions of what is best for individual and community health. In order to tackle this challenge faced by health educators, in contrast to the theory-based teaching model, it is necessary to implicate the people into the learning process. An in depth study on the definition of health education paradigms (informative, persuasive and political-ecological) (García et al., 2001) has been developed, and which Jensen (1997) divides into two types: moral (informative) and democratic (ecological). As part of this process to transform health education into a participatory practice, and given its social impact, there is also a need to implement health education at higher educational levels and not only in primary and secondary school as occurs in Spain. Turning universities into 'health promoting agencies' (Dooris, 2001) would imply coordinating education with personal, professional and community action, and would be supported and driven by organisational change at university level and would require the participation of all involved when defining the course of action. As a consequence, the people involved in health education learning processes at university level would improve not only their quality of life, but they would also build

  14. Metaphor and Universal Language.

    ERIC Educational Resources Information Center

    Blown, Eric; And Others

    1990-01-01

    Attempts to identify elements of universal language and probes the limitations of the communication metaphor. Universal language is discussed in terms of the theory of quantum nonlocality and the implications of this theory for communication with extraterrestrial beings. (PCB)

  15. Gambling with the Universe

    NASA Astrophysics Data System (ADS)

    Hawking, Stephen

    2002-05-01

    This is an excerpt from Stephen Hawking's book The Universe in a Nutshell. Roger Penrose and Stephen Hawking, Lucasian Professor of Mathematics at the University of Cambridge, were able to show that Einstein's General Theory of Relativity implied that the universe and time itself must have had a beginning in a tremendous explosion. The discovery of the expansion of the universe is one of the great intellectual revolutions of the twentieth century.

  16. The Latin American University.

    ERIC Educational Resources Information Center

    Maier, Joseph, Ed.; Weatherhead, Richard W., Ed.

    A comparative overview is presented of the Latin American university, which is seen as an institution with a particular history and definite role. Chapters are as follows: "The Latin American University: An Introduction," by Joseph Maier and Richard W. Weatherhead; "Origin and Philosophy of the Spanish American University," by Mario Gongora;…

  17. What Are Good Universities?

    ERIC Educational Resources Information Center

    Connell, Raewyn

    2016-01-01

    This paper considers how we can arrive at a concept of the good university. It begins with ideas expressed by Australian Vice-Chancellors and in the "league tables" for universities, which essentially reproduce existing privilege. It then considers definitions of the good university via wish lists, classic texts, horror lists, structural…

  18. John Carroll University

    ERIC Educational Resources Information Center

    Dean, Kathleen Lis; Rombalski, Patrick; O'Dell, Kyle

    2009-01-01

    John Carroll University (JCU) is a Jesuit Catholic institution located in University Heights, approximately 10 miles east of Cleveland, Ohio. Founded in 1888, the university has a population of 3,400 undergraduates and 800 graduate students. The Division of Student Affairs at JCU comprises 11 units. The mission of the division is the same as that…

  19. University-Community Relationships.

    ERIC Educational Resources Information Center

    Fink, Ira

    1986-01-01

    Common issues in university-community relationships, such as neighborhood problems and their solutions, facility expansion, traffic and parking, crime, housing, recreation facilities, and city services, are discussed. Findings from a study of the university-community relationship at Ohio State University are outlined. (MSE)

  20. Sierra University in Mexico

    ERIC Educational Resources Information Center

    Celis, Francisco Manuel Orozco

    2003-01-01

    Sierra University was designed to promote the development of the mountain communities in the State of Sonora, Mexico. The university offers high school graduates an opportunity to pursue their studies in their home region, in order to stimulate economic development and contribute to social cohesion in the highlands area. The university is equipped…

  1. Our Listless Universities.

    ERIC Educational Resources Information Center

    Bloom, Allan

    1983-01-01

    Students in the best universities do not believe in anything, and those universities are doing nothing about it. The great questions--God, freedom, and immortality--hardly touch the young. The universities have no vision, no view of what a human being must know in order to be considered educated. (MLW)

  2. The Moral University

    ERIC Educational Resources Information Center

    Berube, Maurice R.; Berube, Clair T.

    2010-01-01

    The Moral University examines the ways that universities act morally toward students, faculty, their communities and the nation. It considers the effectiveness of moral reasoning courses in the curriculum and the growth of leadership courses. The book deals with the myriad ways in which universities act positively toward their communities. It also…

  3. Universities That Litigate Patents

    ERIC Educational Resources Information Center

    Rooksby, Jacob H.

    2012-01-01

    American research universities frequently obtain and license patents to their faculty members' inventions. While university licensing is carefully tracked and thoroughly studied, little is known about university decisions to assertively litigate their patents through filing patent infringement lawsuits in federal court. Which universities…

  4. International Space University

    NASA Technical Reports Server (NTRS)

    Kassler, Maggie (Editor)

    1993-01-01

    The International Space University (ISU) is described in this video, hosted by Marina Sirtis from the 'Star Trek' television show's Starship Enterprise. A complete explanation of what ISU is, how the university functions, and the benefits that the university provides are described. Included are brief comments from former ISU graduates.

  5. The University Culture

    ERIC Educational Resources Information Center

    Simplicio, Joseph

    2012-01-01

    In this article the author discusses the role university culture can play on a campus and how it can impact policy and practice. The article explores how a university's history, values, and vision form its culture and how this culture in turn affects its stability and continuity. The article discusses how newcomers within the university are…

  6. Regulation of University Teaching

    ERIC Educational Resources Information Center

    Lindblom-Ylanne, Sari; Nevgi, Anne; Trigwell, Keith

    2011-01-01

    The aims of the present study are twofold: firstly, to explore dimensions in the regulation of teaching in a multidisciplinary sample of university teachers, and secondly, to analyse factors related to the regulation of university teaching. Seventy-three university teachers representing several disciplines participated in the study. These teachers…

  7. Evolution of Universal Grammar

    NASA Astrophysics Data System (ADS)

    Nowak, Martin A.; Komarova, Natalia L.; Niyogi, Partha

    2001-01-01

    Universal grammar specifies the mechanism of language acquisition. It determines the range of grammatical hypothesis that children entertain during language learning and the procedure they use for evaluating input sentences. How universal grammar arose is a major challenge for evolutionary biology. We present a mathematical framework for the evolutionary dynamics of grammar learning. The central result is a coherence threshold, which specifies the condition for a universal grammar to induce coherent communication within a population. We study selection of grammars within the same universal grammar and competition between different universal grammars. We calculate the condition under which natural selection favors the emergence of rule-based, generative grammars that underlie complex language.

  8. Discovering the Expanding Universe

    NASA Astrophysics Data System (ADS)

    Nussbaumer, Harry; Bieri, Lydia; Sandage, Foreword by Allan

    2009-03-01

    Acknowledgments; Foreword; 1. Introduction; 2. Cosmological concepts at the end of the Middle Ages; 3. Nebulae as a new astronomical phenomenon; 4. On the construction of the Heavens; 5. Island universes turn into astronomical facts: a universe of galaxies; 6. The early cosmology of Einstein and de Sitter; 7. The dynamical universe of Friedmann; 8. Redshifts: how to reconcile Slipher and de Sitter?; 9. Lemaître discovers the expanding universe; 10. Hubble's contribution of 1929; 11. The breakthrough for the expanding universe; 12. Hubble's anger about de Sitter; 13. Robertson and Tolman join the game; 14. The Einstein-de Sitter universe; 15. Are Sun and Earth older than the universe?; 16. In search of alternative tracks; 17. The seed for the Big Bang; 18. Summary and Postscript; Appendix; References; Index.

  9. Universities scale like cities.

    PubMed

    van Raan, Anthony F J

    2013-01-01

    Recent studies of urban scaling show that important socioeconomic city characteristics such as wealth and innovation capacity exhibit a nonlinear, particularly a power law scaling with population size. These nonlinear effects are common to all cities, with similar power law exponents. These findings mean that the larger the city, the more disproportionally they are places of wealth and innovation. Local properties of cities cause a deviation from the expected behavior as predicted by the power law scaling. In this paper we demonstrate that universities show a similar behavior as cities in the distribution of the 'gross university income' in terms of total number of citations over 'size' in terms of total number of publications. Moreover, the power law exponents for university scaling are comparable to those for urban scaling. We find that deviations from the expected behavior can indeed be explained by specific local properties of universities, particularly the field-specific composition of a university, and its quality in terms of field-normalized citation impact. By studying both the set of the 500 largest universities worldwide and a specific subset of these 500 universities--the top-100 European universities--we are also able to distinguish between properties of universities with as well as without selection of one specific local property, the quality of a university in terms of its average field-normalized citation impact. It also reveals an interesting observation concerning the working of a crucial property in networked systems, preferential attachment.

  10. Selling University Reform: The University of Melbourne and the Press

    ERIC Educational Resources Information Center

    Potts, Anthony

    2012-01-01

    Since the advent of the "Times Higher Education Supplement World University Rankings" and the "Academic Rankings of World Universities" by Shanghai Jiao Tong University, some Australian universities have become especially concerned with being ranked among the 100 leading universities. The University of Melbourne, Australia's second oldest…

  11. Is our Universe natural?

    PubMed

    Carroll, Sean M

    2006-04-27

    It goes without saying that we are stuck with the Universe we have. Nevertheless, we would like to go beyond simply describing our observed Universe, and try to understand why it is that way rather than some other way. When considering both the state in which we find our current Universe, and the laws of physics it obeys, we discover features that seem remarkably unnatural to us. Physicists and cosmologists have been exploring increasingly ambitious ideas in an attempt to explain how surprising aspects of our Universe can arise from simple dynamical principles.

  12. The Chinese Television University.

    ERIC Educational Resources Information Center

    McCormick, R.

    1980-01-01

    Presents an overview of China's Beijing Broadcasting and Television University: background, establishment, administration and structure, students, courses, teaching package, and course production. (JD)

  13. New Openings in University-Industry Cooperation: Aalto University as the Forerunner of European University Reform

    ERIC Educational Resources Information Center

    Markkula, Markku; Lappalainen, Pia

    2009-01-01

    The Innovation University (IU)--to be called the Aalto University after Alvav Aalto, a famous Finnish architect and MIT professor--is a new university which will be created through a merger of three existing universities: the Helsinki University of Technology (TKK), the Helsinki School of Economics (HSE) and the University of Art and Design…

  14. Understanding University Technology Transfer

    ERIC Educational Resources Information Center

    Association of American Universities, 2011

    2011-01-01

    Federal government agencies provide about $33 billion a year to universities to conduct scientific research. That continuing investment expands human knowledge and helps educate the next generation of science and technology leaders. New discoveries from university research also form the basis for many new products and processes that benefit the…

  15. The universal propagator

    NASA Technical Reports Server (NTRS)

    Klauder, John R.

    1993-01-01

    For a general Hamiltonian appropriate to a single canonical degree of freedom, a universal propagator with the property that it correctly evolves the coherent-state Hilbert space representatives for an arbitrary fiducial vector is characterized and defined. The universal propagator is explicitly constructed for the harmonic oscillator, with a result that differs from the conventional propagators for this system.

  16. University-industry interaction

    NASA Technical Reports Server (NTRS)

    Hastings, Daniel E.

    1990-01-01

    It is posited that university industry interaction is highly desirable from the viewpoint of the long term economic development of the country as well as being desirable for the Space Grant Programs. The present and future possible interactions are reviewed for the three university levels namely, undergraduate, graduate, and faculty research.

  17. Reeducation at Heidelberg University.

    ERIC Educational Resources Information Center

    Giles, Geoffrey J.

    1997-01-01

    Utilizes German archival records to illuminate crucial post-war events at Heidelberg University. The university became the focal point of attempts to define the theoretical and practical meaning of "geistige Umerziehung" (spiritual reeducation). Discusses the conflict between U.S. authorities and such esteemed German scholars as Karl Jaspers and…

  18. University Freedom in Turkey

    ERIC Educational Resources Information Center

    Dolasir, Semiyha

    2006-01-01

    Freedom means the right of the universities to do their scientific activities and to regulate and do the higher education through their organs. The three feet that make up the university freedom are scientific freedom, administrative freedom and financial freedom. Scientific freedom is realized by the freedom of the faculty and teaching staff and…

  19. Talent Management for Universities

    ERIC Educational Resources Information Center

    Bradley, Andrew P.

    2016-01-01

    This paper explores human resource management practices in the university sector with a specific focus on talent pools and talent management more generally. The paper defines talent management in the context of the university sector and then explores its interdependence with organisational strategy, the metrics used to measure academic performance…

  20. Slippery Rock University

    ERIC Educational Resources Information Center

    Arnhold, Robert W.

    2008-01-01

    Slippery Rock University (SRU), located in western Pennsylvania, is one of 14 state-owned institutions of higher education in Pennsylvania. The university has a rich tradition of providing professional preparation programs in special education, therapeutic recreation, physical education, and physical therapy for individuals with disabilities.…

  1. Universal Design Problem Solving

    ERIC Educational Resources Information Center

    Sterling, Mary C.

    2004-01-01

    Universal design is made up of four elements: accessibility, adaptability, aesthetics, and affordability. This article addresses the concept of universal design problem solving through experiential learning for an interior design studio course in postsecondary education. Students' experiences with clients over age 55 promoted an understanding of…

  2. Marketing University Outreach Programs.

    ERIC Educational Resources Information Center

    Foster, Ralph S., Jr., Ed.; And Others

    A collection of 12 essays and model program descriptions addresses issues in the marketing of university extension, outreach, and distance education programs. They include: (1) "Marketing and University Outreach: Parallel Processes" (William I. Sauser, Jr. and others); (2) "Segmenting and Targeting the Organizational Market" (Vaughan C. Judd); (3)…

  3. Universals, Typologies and Interlanguage.

    ERIC Educational Resources Information Center

    Eckman, Fred R.

    Two questions are raised: Is it possible to characterize the notion human language in terms of absolute and typological universals? And if so, what is the relationship between these universals and those formulated for primary languages? Given these questions, the purpose of the paper is to: (1) investigate some of the methodological considerations…

  4. Asian Open Universities.

    ERIC Educational Resources Information Center

    Hill, John

    1983-01-01

    The appearance of open universities in Asia is of interest to Australian educators, particularly since the Asian institutions differ in some respects from the British model which combined open entry to all and extensively employed the electronic media. The Asian Open Universities have provided access to higher education for many. (SSH)

  5. The United Nations University

    ERIC Educational Resources Information Center

    Salam, Abdus

    1973-01-01

    Reports the progress already made toward the establishment of a postgraduate international university under United Nations auspices. The resolution adopted by the U.N. General Assembly provides a concise statement of the nature and aims of the United Nations University, which is likely to start operating in 1974. (JR)

  6. Universal Symbols and Cartography.

    ERIC Educational Resources Information Center

    Modley, Rudolf

    The broad use of maps by non-cartographers imposes on the cartographer the burden to make maps not only accurate, but to use symbols which make map-reading easier for the public. The latter requirement implies a need for universal symbols. Although there are no universal symbols today (letters, words, and figures, to a lesser extent, are dependent…

  7. The Kept University.

    ERIC Educational Resources Information Center

    Press, Eyal; Washburn, Jennifer

    2000-01-01

    Examines the trend of increasing collaboration between American universities and corporations, including issues such as the academic-industrial complex, secrecy and science, the university as a business/commercial enterprise, who controls the research agenda, downsizing the humanities, and on-line marketing of course material. Expresses concerns…

  8. Faculty Handbook, Stanford University.

    ERIC Educational Resources Information Center

    Stanford Univ., CA.

    University policies, regulations, and procedures that apply to faculty members directly or indirectly, as well as the university's organization and governance, are described in the 1975 handbook. A brief history of Stanford's academic development and a bibliography to other information sources related to academic affairs are also provided.…

  9. Modelling University Governance

    ERIC Educational Resources Information Center

    Trakman, Leon

    2008-01-01

    Twentieth century governance models used in public universities are subject to increasing doubt across the English-speaking world. Governments question if public universities are being efficiently governed; if their boards of trustees are adequately fulfilling their trust obligations towards multiple stakeholders; and if collegial models of…

  10. Universal Playground Design.

    ERIC Educational Resources Information Center

    Ensign, Arselia, Ed.

    1993-01-01

    This publication presents principles of universal playgrounds, designed to maximize accessibility for all children, with and without disabilities. First, the rationale for the universal playground is given including the importance of play and the value of integration. Next current guidelines for playground design are discussed including safety,…

  11. Ethics in the University.

    ERIC Educational Resources Information Center

    Pettit, Lawrence K.

    The issues of ethics in the university and the role of higher education in society are addressed. Distinctions are made between legal behavior and ethical behavior, and the question of how the university needs to balance the two in order to fulfill its unique role in society while it simultaneously strives to reside and survive within it is…

  12. [The University in Crisis.

    ERIC Educational Resources Information Center

    Abram, Morris B.

    The university reflects the revolution in the world. Large numbers of "find out" students are not goal oriented and are affected by malaise; many approve of the use of violence in certain situations. Part of the revolution must be accepted and part rejected. The university is extremely vulnerable to violence and, unless it is contained, American…

  13. Biotechnology and the University.

    ERIC Educational Resources Information Center

    Wofsy, Leon

    1986-01-01

    Biotechnology is changing the values of the university's bioscience community. Priorities are distorted by entrepreneurial incentives and government pressures that increase the scientist's dependence on industry and the military. The university is seen as inattentive to the social, ethical, and educational challenges. (Author/MLW)

  14. The Pennsylvania State University

    ERIC Educational Resources Information Center

    Burlingame, Philip J.; Dowhower, Andrea L.

    2009-01-01

    Founded in 1855 as the Farmer's High School, the Pennsylvania State University (Penn State) began as a small college in Centre County providing agricultural education to young men from regional farm families. Penn State became a land-grant university in 1863 following passage of the Morrill Act. Today, Penn State enrolls more than 83,000 students…

  15. Universal Semantics in Translation

    ERIC Educational Resources Information Center

    Wang, Zhenying

    2009-01-01

    What and how we translate are questions often argued about. No matter what kind of answers one may give, priority in translation should be granted to meaning, especially those meanings that exist in all concerned languages. In this paper the author defines them as universal sememes, and the study of them as universal semantics, of which…

  16. Dynamics of Anisotropic Universes

    NASA Astrophysics Data System (ADS)

    Perez, Jérôme

    2006-11-01

    We present a general study of the dynamical properties of Anisotropic Bianchi Universes in the context of Einstein General Relativity. Integrability results using Kovalevskaya exponents are reported and connected to general knowledge about Bianchi dynamics. Finally, dynamics toward singularity in Bianchi type VIII and IX universes are showed to be equivalent in some precise sence.

  17. Evolution of the universe

    NASA Astrophysics Data System (ADS)

    Novikov, I. D.

    The underlying principles and discoveries of cosmology are presented in a qualitative form. The General Theory of Relativity is the basis for the science of the structure of the Universe, and Friedmann in 1922-4 demonstrated that the Universe is either expanding or contracting; Hubble in 1929 provided evidence for expansion. The physical processes of the evolution of the Universe to date have been projected to include origins in a superdense, superhot state with violent reactions between elementary particles. The resulting matter fragmented into the stellar systems and agglomerations presently observed. Observational data of the most distant galaxies now covers a range of 10 Gpc. Current studies focus on the missing matter in the Universe and the mean density of matter, the gravitation of vacuum, relict radiation from the Big Bang, the curvature of space-time, and theories for the earliest moments of the Universe, including pancake theories, the synthesis of light elements, and black and white holes.

  18. AGA panel forecasts gas demand at 22 TCF in 2000

    SciTech Connect

    Not Available

    1984-07-09

    The American Gas Association projects that the US natural gas consumption could range from 18.7 to 25.4 trillion CF in the year 2000, with a base case forecast of 22.1 TCF. The assumptions made for the high-, low-, and base-case scenarios are described. Residential gas demand is expected to be 4.3 to 5.6 TCF; commercial gas demand is set at 3.2 to 4.6 TCF; industrial gas demand is projected to be 7.9 to 10.3 TCF; gas used for electric generation will stay the same as in 1982, around 2.6 to 3.3 TCF; and the transportation sector will account for 0.7 to 1.6 TCF of natural gas.

  19. O'otham Nioki Haichu A:ga (Pima Dictionary).

    ERIC Educational Resources Information Center

    Dixon, Joan; And Others

    Developed for students in grades 3-5, this picture dictionary is one in a series designed to instill pride in Pima students by presenting their language in print and to increase their vocabularies in both Pima and English. The dictionary begins with a comparison of English and Pima orthographies and an explanation of sounds and pronunciation…

  20. Type II universal spacetimes

    NASA Astrophysics Data System (ADS)

    Hervik, S.; Málek, T.; Pravda, V.; Pravdová, A.

    2015-12-01

    We study type II universal metrics of the Lorentzian signature. These metrics simultaneously solve vacuum field equations of all theories of gravitation with the Lagrangian being a polynomial curvature invariant constructed from the metric, the Riemann tensor and its covariant derivatives of an arbitrary order. We provide examples of type II universal metrics for all composite number dimensions. On the other hand, we have no examples for prime number dimensions and we prove the non-existence of type II universal spacetimes in five dimensions. We also present type II vacuum solutions of selected classes of gravitational theories, such as Lovelock, quadratic and L({{Riemann}}) gravities.

  1. The Transient Universe

    NASA Astrophysics Data System (ADS)

    Shappee, Benjamin John

    When one looks at the night sky, one usually gets the impression of a static and constant universe. Quite apart from appearances, the sky is teeming with violent, variable, and transient events that shape our universe. These capricious objects are not only penetrating probes into physical conditions too extreme for earthbound laboratories, but they are also useful tools to measure the universe. In this dissertation, I investigate the observational and theoretical properties of three classes of transient/variable objects: thermonuclear supernovae, Cepheid variable stars, and active galactic nuclei.

  2. Impact of Mode of Curriculum on Knowledge and Attitudes of Medical Students towards Health Research

    PubMed Central

    Haseeb, Abdul; Ansari, M. Ahmed; Raheem, Ahmed; Khan, Aleena; Arshad, Mohammad Hussham; Motiani, Vanita; Akhtar, Muhammad Shahzeb

    2016-01-01

    Introduction Equipping students with skills in medical research should be an integral part of medical education systems. This study is designed to gauge the difference in knowledge and attitudes towards health research between two sets of undergraduate medical students; those enrolled in the new Problem Based Learning (PBL) education system versus those of the conventional Lecture Based Learning (LBL) curricula. Materials and Methods From the 4th and 5th years of medical university students, 90 participants were recruited from the Aga Khan University (PBL group) and Dow University of Health Sciences (LBL group) and were presented with structured and pre-validated questionnaire. Responses obtained for knowledge and attitudes of each group were recorded on a scale and graduated in percentages to be compared statistically for differences to identify the effectiveness of each curriculum. Results The score on the knowledge scale for the PBL group was found to be 44.77% against the 31.55% of the LBL students (p-value<0.001). Furthermore, the mean attitude score of AKU students was 72.22% as opposed to the 56.11% of the DUHS participants (p-value<0.001). Conclusion The PBL group achieved significantly higher scores in all aspects than the LBL group, showing healthier attitudes towards health science research along with better knowledge. Hence, the apparent positive influence of PBL curricula on attitudes towards research may be helpful in improving research output of medical students in Pakistan. PMID:27190837

  3. University Presses: Problems and Prospects.

    ERIC Educational Resources Information Center

    Meeker, Robert B.

    Historical information on university presses and their problems are considered. University presses in the United States have their roots in 15th century England when the Oxford University Press was established in 1478. The first U.S. press to use the term "university press" was Cornell University; the press operated from 1869 until it was closed…

  4. Profiting from University Research: Tapping into University Technology.

    ERIC Educational Resources Information Center

    Aaron, Elizabeth

    1988-01-01

    Indicates that industry sponsored research in the university environment is increasing. Lists reasons for companies to use university research. Notes 1980 Baigh-Dole Bill which allows the university first rights to technologies they develop. (MVL)

  5. University of Florida Campus, Plaza of the Americas, University of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    University of Florida Campus, Plaza of the Americas, University of Florida Campus Quad Bounded by West University Avenue, US 441/Southwest 13th Street, Stadium Road, and North-South Drive, Gainesville, Alachua County, FL

  6. California's "Free" Universities

    ERIC Educational Resources Information Center

    Cudhea, David

    1974-01-01

    Heliotrope, Orpheus, and Communiversity, San Francisco's three free universities, offer curricula with combinations of alchemy, magic, Volkswagen repairs, options in education, dance, conversational Mandarin, basic plumbing, and brain wave experiences. (Author/PG)

  7. Improved universal electrical connector

    NASA Technical Reports Server (NTRS)

    Kennedy, B. W.

    1972-01-01

    Universal electrical connector for use with various types of electric cable, inserts, and pin styles is described. Connector may be used over variety of environmental conditions. Details of construction are discussed. Illustrations of connector are included.

  8. Evaluation of University Faculty.

    ERIC Educational Resources Information Center

    Parramore, Barbara M.

    1979-01-01

    Faculty evaluation guidelines, which have been in effect for five years at North Carolina State University's School of Education, are described. Outcomes of this system are summarized, as well as some of the problems associated with it. (GDC)

  9. Institutional Strategies: Duke University.

    ERIC Educational Resources Information Center

    Franklin, Phyllis

    1982-01-01

    The planning process, objectives, and procedures used by Duke's chancellor during the retrenchment process are summarized. The emphasis was placed on enhancing the university's strengths while reducing costs and on enlisting faculty support and assistance in the change process. (MSE)

  10. Many Universes POSSIBLE!

    NASA Astrophysics Data System (ADS)

    Sinha, Pankaj K.

    An innovative scientific work on the evolution of the universe unravels a fresh phenomenon about the birth and evolution of a Big Bang. We see why Big Bang is not the earliest evolutionary stage of the universe rather it is necessarily just a part of the Universe which couldn't be revered more than a womb for clusters. SYNTESIS: The Big Bang starts from a black hole i.e. prior to Big Bang there was a black hole and there is expected a number of Big Bang in the universe going similar to our Big Bang and the whole process of the expansion and contraction of the Big Bang as described in the paper.

  11. Universality in string interactions

    NASA Astrophysics Data System (ADS)

    Huang, Yu-tin; Schlotterer, Oliver; Wen, Congkao

    2016-09-01

    In this note, we provide evidence for universality in the low-energy expansion of tree-level string interactions. More precisely, in the α'-expansion of tree-level scattering amplitudes, we conjecture that the leading transcendental coefficient at each order in α' is universal for all perturbative string theories. We have checked this universality up to seven points and trace its origin to the ability to restructure the disk integrals of open bosonic string into those of the superstring. The accompanying kinematic functions have the same low-energy limit and do not introduce any transcendental numbers in their α'-corrections. Universality in the closed-string sector then follows from KLT-relations.

  12. University/industry research

    NASA Astrophysics Data System (ADS)

    Bell, Peter M.

    The problems encountered in mixing industrial and university research goals can be major, but so can the benefits. The National Science Board (NSB) recently released a report on “University-Industry Research Relationships: Selected Studies” (U.S. Government Printing Office, Washington, DC, 1983). It is an analysis of the much-discussed new trend toward increased industrial funding of university research projects.University laboratories cannot generally solve industry's R&D problems. Success for the corporation in sponsoring academic research is realized in the value of cooperative research programs as training exercises for future industrial scientists. An occasional patent arising from such a project is considered an added benefit, not a primary goal.

  13. Berkeley College, Yale University.

    ERIC Educational Resources Information Center

    Russell, James S.

    2000-01-01

    Examines the controversial architectural technique of combining contemporary features with traditional designs at Yale University's Berkeley College, and discusses whether there is a place for this type of juxtaposition in architectural design. Photos and diagrams are included. (GR)

  14. The universal path integral

    NASA Astrophysics Data System (ADS)

    Lloyd, Seth; Dreyer, Olaf

    2016-02-01

    Path integrals calculate probabilities by summing over classical configurations of variables such as fields, assigning each configuration a phase equal to the action of that configuration. This paper defines a universal path integral, which sums over all computable structures. This path integral contains as sub-integrals all possible computable path integrals, including those of field theory, the standard model of elementary particles, discrete models of quantum gravity, string theory, etc. The universal path integral possesses a well-defined measure that guarantees its finiteness. The probabilities for events corresponding to sub-integrals can be calculated using the method of decoherent histories. The universal path integral supports a quantum theory of the universe in which the world that we see around us arises out of the interference between all computable structures.

  15. Physics of the universe

    NASA Astrophysics Data System (ADS)

    Sachs, Mendel

    ch. 1. Physics of the universe. Introduction. Is Newton's theory an explanation of gravity? The expanding universe. The oscillating universe cosmology. The theory of general relativity. The role of space and time. Geometry and matter. Generalization of Einstein's field equations. A unified field theory -- ch. 2. A language of cosmology: the mathematical basis of general relativity. Introduction. Einstein's tensor formulation. The Riemann curvature tensor. The geodesic equation. The vacuum equation. The crucial tests of general relativity. The logic of the spacetime language -- ch. 3. A unified field theory in general relativity: extension from the tensor to the quaternion language. Introduction. Factorization of Einstein's tensor field equations. The Riemann curvature tensor in quaternion form. The quaternion metrical field equations. A symmetric tensor-antisymmetric tensor representation of general relativity - gravity and electromagnetism. The Einstein field equations from the symmetric tensor part. The Maxwell field equations from the antisymmetric tensor part. Conclusions -- ch. 4. An oscillating, spiral universe cosmology. introduction. Dynamics of the expansion and contraction of the universe. Dynamics of the oscillating universe cosmology. Derivation of the Hubble law as an approximation. The spiral structure of the universe. Concluding remarks -- ch. 5. Dark matter. Introduction. The field equations and the ground state solution for the bound particle-antiparticle pair. Olber's paradox -- ch. 6. Concluding remarks. Black holes. Pulsars. On the human race and cosmology -- ch. 7. Philosophical considerations. On truth. Positivism versus realism, subjectivity versus objectivity. On Mach's influence in physics and cosmology. References and notes -- Postscript. Physics in the 21st century. Holism. The universe. The Mach principle and the origin of inertia from general relativity.

  16. The Endless Universe

    SciTech Connect

    Steinhardt, Paul

    2003-09-24

    This talk will introduce the Cyclic Model of the Universe, a radical alternative to standard big bang/inflationary cosmology in which space and time exist indefinitely, high energy inflation is avoided, dark energy is given a prominent role, and the universe undergoes periodic epochs of expansion and cooling. The model, which is motivated by recent ideas in superstring theory, seems capable of reproducing all of the successes of the standard picture and leads to distinctive predictions.

  17. Baby universes revisited

    NASA Astrophysics Data System (ADS)

    Ambjørn, J.; Barkley, J.; Budd, T.; Loll, R.

    2011-11-01

    The behavior of baby universes has been an important ingredient in understanding and quantifying non-critical string theory or, equivalently, models of two-dimensional Euclidean quantum gravity coupled to matter. Within a regularized description based on dynamical triangulations, we amend an earlier conjecture by Jain and Mathur on the scaling behavior of genus-g surfaces containing particular baby universe 'necks', and perform a non-trivial numerical check on our improved conjecture.

  18. Decay of oscillating universes

    NASA Astrophysics Data System (ADS)

    Mithani, Audrey Todhunter

    It has been suggested by Ellis et al that the universe could be eternal in the past, without beginning. In their model, the "emergent universe'' exists forever in the past, in an "eternal'' phase before inflation begins. We will show that in general, such an "eternal'' phase is not possible, because of an instability due to quantum tunneling. One candidate model, the "simple harmonic universe'' has been shown by Graham et al to be perturbatively stable; we find that it is unstable with respect to quantum tunneling. We also investigate the stability of a distinct oscillating model in loop quantum cosmology with respect to small perturbations and to quantum collapse. We find that the model has perturbatively stable and unstable solutions, with both types of solutions occupying significant regions of the parameter space. All solutions are unstable with respect to collapse by quantum tunneling to zero size. In addition, we investigate the effect of vacuum corrections, due to the trace anomaly and the Casimir effect, on the stability of an oscillating universe with respect to decay by tunneling to the singularity. We find that these corrections do not generally stabilize an oscillating universe. Finally, we determine the decay rate of the oscillating universe. Although the wave function of the universe lacks explicit time dependence in canonical quantum cosmology, time evolution may be present implicitly through the semiclassical superspace variables, which themselves depend on time in classical dynamics. Here, we apply this approach to the simple harmonic universe, by extending the model to include a massless, minimally coupled scalar field φ which has little effect on the dynamics but can play the role of a "clock''.

  19. The Low Temperature Universe

    NASA Astrophysics Data System (ADS)

    Blandford, Roger; Simeon, Paul

    2009-12-01

    We are used to thinking of the universe as a hot place, full of bright stars, quasars, gamma ray bursts, and so on, emanating from a giant explosion-the Big Bang. However, the universe can also be a surprisingly cool place. It is permeated by a background radiation with a temperature close to that of liquid helium. This paper is based on a public lecture aimed at non-specialists.

  20. University contracts summary book

    SciTech Connect

    1980-08-01

    The principal objectives of the Fossil Energy Program are to seek new ideas, new data, fundamental knowledge that will support the ongoing programs, and new processes to better utilize the nation's fossil energy resources with greater efficiency and environmental acceptability. Toward this end, the Department of Energy supports research projects conducted by universities and colleges to: Ensure a foundation for innovative technology through the use of the capabilities and talents in our academic institutions; provide an effective, two-way channel of communication between the Department of Energy and the academic community; and ensure that trained technical manpower is developed to carry out basic and applied research in support of DOE's mission. Fossil Energy's university activities emphasize the type of research that universities can do best - research to explore the potential of novel process concepts, develop innovative methods and materials for improving existing processes, and obtain fundamental information on the structure of coal and mechanisms of reactions of coal, shale oil, and other fossil energy sources. University programs are managed by different Fossil Energy technical groups; the individual projects are described in greater detail in this book. It is clear that a number of research areas related to the DOE Fossil Energy Program have been appropriate for university involvement, and that, with support from DOE, university scientific and technical expertise can be expected to continue to play a significant role in the advancement of fossil energy technology in the years to come.

  1. The University-Industry Relations of an Entrepreneurial University: The Case of the University of Twente.

    ERIC Educational Resources Information Center

    Schutte, Frits

    1999-01-01

    Describes the development of the University of Twente from a regional teaching university to a national research university, the "entrepreneurial university" of the Netherlands. Focuses on spinoffs from the university, an incubator in a business and science park and the generation of venture capital. Estimates the regional impact of such…

  2. University teaching - where next?

    NASA Astrophysics Data System (ADS)

    1999-03-01

    A one-day workshop will take place on 23 April 1999 at the University of Edinburgh's Conference and Training Centre to consider the topic `The future of university teaching? Multimedia, web and new technologies'. The workshop is being organized by Edinburgh Parallel Computing Centre and will be attended by experts in distance learning from various institutions including the Clyde Virtual University and the Open University, plus a speaker from the USA. They will present case studies of the opportunities new technologies provide for higher education, covering all aspects from development of electronic courses through delivery mechanisms to user feedback. There is certainly an increasing need for quality teaching materials and new ways of learning. The workshop will aim to discuss how those involved in university teaching can benefit from new developments such as multimedia, the Internet, as well as new computing and networking technologies. Participation is free, with lunch and refreshments provided. More information and registration details can be found at http://www.epcc.ed.ac.uk/epcc-tec/JTAP/workshop/ or by e-mail to epcc-tec@epcc.ed.ac.uk.

  3. University Reactor Instrumentation Program

    SciTech Connect

    Vernetson, W.G.

    1992-11-01

    Recognizing that the University Reactor Instrumentation Program was developed in response to widespread needs in the academic community for modernization and improvement of research and training reactors at institutions such as the University of Florida, the items proposed to be supported by this grant over its two year period have been selected as those most likely to reduce foreed outages, to meet regulatory concerns that had been expressed in recent years by Nuclear Regulatory Commission inspectors or to correct other facility problems and limitations. Department of Energy Grant Number DE-FG07-90ER129969 was provided to the University of Florida Training Reactor(UFTR) facility through the US Department of Energy's University Reactor Instrumentation Program. The original proposal submitted in February, 1990 requested support for UFTR facility instrumentation and equipment upgrades for seven items in the amount of $107,530 with $13,800 of this amount to be the subject of cost sharing by the University of Florida and $93,730 requested as support from the Department of Energy. A breakdown of the items requested and total cost for the proposed UFTR facility instrumentation and equipment improvements is presented.

  4. The Universe Revealed

    NASA Astrophysics Data System (ADS)

    Spence, Pam

    1998-10-01

    The Universe is a bewildering place to the uninitiated. The concepts and theories that govern space seem complex and often contradictory. The Universe Revealed provides the keys to unlocking the wonders of the cosmos. Elegantly written and lavishly illustrated, it begins with the Sun and stretches through our solar system into deepest space. Lucid prose, written by many of the people who have shaped our current thinking on space, and spectacular photographs make the physics of the Universe accessible and provide a solid background for understanding the most recent astronomical discoveries. Covering the most intriguing features of the cosmos, the topics discussed range from the Earth and global warming to cosmic collisions and the size of the Universe. Major sections examine the Solar System, stars, galaxies, cosmology, and the observational techniques used by astronomers, both amateur and professional. The Universe Revealed represents the collaboration of internationally renowned experts in astronomy and cosmology, with contributions from authors including David Malin, F. Duccio Macchetto, Iain Nicholson, Neil Bone, Ian Ridpath, Seth Shostak, Mike Lancaster, Steve Miller, Ken Croswell, Geoff McNamara, and Steven Young. This extraordinary blend of astronomy, astrophysics, and cosmology, will appeal to amateur and armchair astronomers alike.

  5. University-Community Engagement: Case Study of University Social Responsibility

    ERIC Educational Resources Information Center

    Chile, Love M.; Black, Xavier M.

    2015-01-01

    Corporatisation of universities has drawn parallels between contemporary universities and business corporations, and extended analysis of corporate social responsibility to universities. This article reports on a case study of university-community engagement with schools and school communities through youth engagement programmes to enhance…

  6. Music of the Universe

    SciTech Connect

    2010-01-01

    Scientists are quite familiar with what a supernova looks like — when these stars are destroyed in the most massive explosions in the universe, they leave their mark as one of the brightest objects in space, at least for several weeks. While the supernova can be seen, it cant be heard, as sound waves cannot travel through space. But what if the light waves emitted by the exploding star and other cosmological phenomena could be translated into sound? Thats the idea behind a Rhythms of the Universe, a musical project to sonify the universe by Grateful Dead percussionist and Grammy award-winning artist Mickey Hart that caught the attention of Nobel Prize-winning astrophysicist George Smoot of Lawrence Berkeley National Laboratory. Sounds courtesy of Keith Jackson. Images courtesy of NASA

  7. The Biological Universe Revisited

    NASA Astrophysics Data System (ADS)

    Dick, Steven J.

    2005-01-01

    Cosmic Evolution has been seen as leading to two possible world views: a physical universe in which life is rare or unique to Earth, and a biological universe, in which the processes of cosmic evolution commonly end in life. These two worldviews now hang in the balance, in the same way that the heliocentric and geocentric worldviews were in the balance four hundred years ago when Galileo wrote his Dialogue on the Two Chief World Systems (1632). Astrobiology is the science that will decide which of the two modern astronomical worldviews is true. A third world view, the postbiological universe, is also possible and deserves more discussion. The confirmation of one of these worldviews will have profound implications for human destiny.

  8. The Biological Universe

    NASA Astrophysics Data System (ADS)

    Dick, Steven J.

    1999-12-01

    Throughout the twentieth century, from the furor over Percival Lowell's claim of canals on Mars to the sophisticated Search for Extraterrestrial Intelligence, otherworldly life has often intrigued and occasionally consumed science and the public. The Biological Universe provides a rich and colorful history of the attempts during the twentieth century to answer questions such as whether "biological law" reigns throughout the universe and whether there are other histories, religions, and philosophies outside those on Earth. Covering a broad range of topics, including the search for life in the solar system, the origins of life, UFOs, and aliens in science fiction, Steven J. Dick shows how the concept of extraterrestrial intelligence is a world view of its own, a "biophysical cosmology" that seeks confirmation no less than physical views of the universe. This book will fascinate astronomers, historians of science, biochemists, and science fiction readers.

  9. Phonology without universal grammar

    PubMed Central

    Archangeli, Diana; Pulleyblank, Douglas

    2015-01-01

    The question of identifying the properties of language that are specific human linguistic abilities, i.e., Universal Grammar, lies at the center of linguistic research. This paper argues for a largely Emergent Grammar in phonology, taking as the starting point that memory, categorization, attention to frequency, and the creation of symbolic systems are all nonlinguistic characteristics of the human mind. The articulation patterns of American English rhotics illustrate categorization and systems; the distribution of vowels in Bantu vowel harmony uses frequencies of particular sequences to argue against Universal Grammar and in favor of Emergent Grammar; prefix allomorphy in Esimbi illustrates the Emergent symbolic system integrating phonological and morphological generalizations. The Esimbi case has been treated as an example of phonological opacity in a Universal Grammar account; the Emergent analysis resolves the pattern without opacity concerns. PMID:26388791

  10. Phonology without universal grammar.

    PubMed

    Archangeli, Diana; Pulleyblank, Douglas

    2015-01-01

    The question of identifying the properties of language that are specific human linguistic abilities, i.e., Universal Grammar, lies at the center of linguistic research. This paper argues for a largely Emergent Grammar in phonology, taking as the starting point that memory, categorization, attention to frequency, and the creation of symbolic systems are all nonlinguistic characteristics of the human mind. The articulation patterns of American English rhotics illustrate categorization and systems; the distribution of vowels in Bantu vowel harmony uses frequencies of particular sequences to argue against Universal Grammar and in favor of Emergent Grammar; prefix allomorphy in Esimbi illustrates the Emergent symbolic system integrating phonological and morphological generalizations. The Esimbi case has been treated as an example of phonological opacity in a Universal Grammar account; the Emergent analysis resolves the pattern without opacity concerns.

  11. The anamorphic universe

    SciTech Connect

    Ijjas, Anna; Steinhardt, Paul J. E-mail: steinh@princeton.edu

    2015-10-01

    We introduce ''anamorphic'' cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum of adiabatic density perturbations. The defining feature is a smoothing phase that acts like a contracting universe based on some Weyl frame-invariant criteria and an expanding universe based on other frame-invariant criteria. An advantage of the contracting aspects is that it is possible to avoid the multiverse and measure problems that arise in inflationary models. Unlike ekpyrotic models, anamorphic models can be constructed using only a single field and can generate a nearly scale-invariant spectrum of tensor perturbations. Anamorphic models also differ from pre-big bang and matter bounce models that do not explain the smoothness. We present some examples of cosmological models that incorporate an anamorphic smoothing phase.

  12. Phonology without universal grammar.

    PubMed

    Archangeli, Diana; Pulleyblank, Douglas

    2015-01-01

    The question of identifying the properties of language that are specific human linguistic abilities, i.e., Universal Grammar, lies at the center of linguistic research. This paper argues for a largely Emergent Grammar in phonology, taking as the starting point that memory, categorization, attention to frequency, and the creation of symbolic systems are all nonlinguistic characteristics of the human mind. The articulation patterns of American English rhotics illustrate categorization and systems; the distribution of vowels in Bantu vowel harmony uses frequencies of particular sequences to argue against Universal Grammar and in favor of Emergent Grammar; prefix allomorphy in Esimbi illustrates the Emergent symbolic system integrating phonological and morphological generalizations. The Esimbi case has been treated as an example of phonological opacity in a Universal Grammar account; the Emergent analysis resolves the pattern without opacity concerns. PMID:26388791

  13. The apparent Universe

    NASA Astrophysics Data System (ADS)

    Binétruy, P.; Helou, A.

    2015-10-01

    We exploit the parallel between dynamical black holes and cosmological spacetimes to describe the evolution of Friedmann-Lemaître-Robertson-Walker universes from the point of view of an observer in terms of the dynamics of the apparent horizon. Using the Hayward-Kodama formalism of dynamical black holes, we clarify the role of the Clausius relation to derive the Friedmann equations for a Universe, in the spirit of Jacobson’s work on the thermodynamics of spacetime. We also show how dynamics at the horizon naturally leads to the quantum-mechanical process of Hawking radiation. We comment on the connection of this work with recent ideas to consider our observable Universe as a Bose-Einstein condensate and on the corresponding role of vacuum energy.

  14. The Classification of Universes

    SciTech Connect

    Bjorken, J.D.

    2004-02-18

    We define a universe as the contents of a spacetime box with comoving walls, large enough to contain measurable phenomena, but not much larger. This allows the construction of a local ensemble of such universes, given modest extrapolations of the observed properties of the cosmos. We then assume that further out similar universes can be constructed, but with different standard model parameters, strongly correlated with the size in a definite way, where by size is meant the Hubble scale at late times. This allows an estimate of the range of sizes supporting life as we know it. The result allows some understanding of the hierarchy problems of particle physics. Other possible implications of the assumptions made will be discussed, including a possible connection between the QCD vacuum structure and cosmological horizon structure. In all cases, our approach is as bottoms-up and as phenomenological as possible, suggesting that theories of the multiverse may eventually lay some claim of being scientific.

  15. The anamorphic universe

    NASA Astrophysics Data System (ADS)

    Ijjas, Anna; Steinhardt, Paul J.

    2015-10-01

    We introduce ``anamorphic'' cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum of adiabatic density perturbations. The defining feature is a smoothing phase that acts like a contracting universe based on some Weyl frame-invariant criteria and an expanding universe based on other frame-invariant criteria. An advantage of the contracting aspects is that it is possible to avoid the multiverse and measure problems that arise in inflationary models. Unlike ekpyrotic models, anamorphic models can be constructed using only a single field and can generate a nearly scale-invariant spectrum of tensor perturbations. Anamorphic models also differ from pre-big bang and matter bounce models that do not explain the smoothness. We present some examples of cosmological models that incorporate an anamorphic smoothing phase.

  16. Astrochemistry : The molecular universe

    NASA Astrophysics Data System (ADS)

    Fraser, Helen J.; McCoustra, Martin R. S.; Williams, David A.

    2002-04-01

    Helen J Fraser, Martin R S McCoustra and David A Williams present a simple guide to astrochemistry. Molecules play a fundamental role in many regions of our universe. The science where chemistry and astronomy overlap is known as astrochemistry, a branch of astronomy that has risen in importance over recent years. In this article we review the significance of chemistry in several astronomical years. IN this article we review the significance of chemistry in several astronomical environments including the early universe, interstellar clouds, starforming regions and protoplanetary disks. We discuss theoretical models, laboratory experiments and observational data, and present several recent and exciting results that challenge our perception of the ``molecular universe''.

  17. Imaging the early universe

    SciTech Connect

    Krupa, Tyler J.

    2000-07-01

    An international team of cosmologists has released the first detailed images of the universe in its infancy. The images reveal the structure that existed when the universe was a tiny fraction of its current age and 1,000 times smaller and hotter than it is today. Research carried out as part of this project is shedding light on some of cosmology's long-standing mysteries, such as the nature of the matter and energy that dominate intergalactic space and whether space is ''curved'' or ''flat.''(c) 2000 Optical Society of America.

  18. A universal functional object

    NASA Technical Reports Server (NTRS)

    Roth, J. P.

    1972-01-01

    A scheme is presented for realizing any function, combinational or sequential, in a single universal function scheme, termed the universal function object UF. This scheme is addressed to the problem of the proliferation of the number of parts (cards, chips) necessary for conventional implementation in an LSI technology of a computer system. The UF implementation will use about ten times more circuits than a conventional implementation regardless of the size of the design. The UF approach also includes general-purpose spares for failing circuits. The procedure could be used both at manufacture to increase yields, as well as to achieve automatic repair.

  19. Understanding the Universe

    NASA Astrophysics Data System (ADS)

    Greenstein, George

    2013-04-01

    Part I. Steps to Astronomy: 1. The sky; 2. The origins of astronomy; 3. Gravity and orbits; 4. Light; 5. The astronomers' tools: telescopes and space probes; Part II. The Solar System: 6. Introducing the Solar System; 7. The inner Solar System; 8. The outer Solar System; 9. Smaller bodies in the Solar System; 10. Planets beyond the Solar System; Part III. Stars: 11. Our Sun; 12. A census of stars; 13. The formation of stars and planets; 14. Stellar structure; 15. Stellar evolution and death; Part IV. Galaxies and the Universe: 16. The Milky Way galaxy; 17. Galaxies; 18. Cosmology; 19. Life in the Universe; Index.

  20. UTM: Universal Transit Modeller

    NASA Astrophysics Data System (ADS)

    Deeg, Hans J.

    2014-12-01

    The Universal Transit Modeller (UTM) is a light-curve simulator for all kinds of transiting or eclipsing configurations between arbitrary numbers of several types of objects, which may be stars, planets, planetary moons, and planetary rings. A separate fitting program, UFIT (Universal Fitter) is part of the UTM distribution and may be used to derive best fits to light-curves for any set of continuously variable parameters. UTM/UFIT is written in IDL code and its source is released in the public domain under the GNU General Public License.

  1. The Biological Universe

    NASA Astrophysics Data System (ADS)

    Dick, Steven J.

    2000-03-01

    Introduction; 1. From the physical world to the biological universe: Democritus to Lowell; 2. Plurality of worlds and the decline of anthropocentrism; 3. The solar system: the limits of observation; 4. Solar systems beyond: the limits of theory; 5. Extraterrestrials in literature and the arts: the role of imagination; 6. The UFO controversy: on perception and deception; 7. The origin and evolution of life in the extraterrestrial context; 8. SETI: the Search for Extraterrestrial Intelligence; 9. The convergence of disciplines: birth of a new science; 10. The meaning of life; Summary and conclusion: the biological universe and the limits of science.

  2. The Biological Universe

    NASA Astrophysics Data System (ADS)

    Dick, Steven J.

    1996-09-01

    Introduction; 1. From the physical world to the biological universe: Democritus to Lowell; 2. Plurality of worlds and the decline of anthropocentrism; 3. The solar system: the limits of observation; 4. Solar systems beyond: the limits of theory; 5. Extraterrestrials in literature and the arts: the role of imagination; 6. The UFO controversy: on perception and deception; 7. The origin and evolution of life in the extraterrestrial context; 8. SETI: the Search for Extraterrestrial Intelligence; 9. The convergence of disciplines: birth of a new science; 10. The meaning of life; Summary and conclusion: the biological universe and the limits of science.

  3. The Expanding Universe

    NASA Astrophysics Data System (ADS)

    Heacox, William D.

    2015-11-01

    Introducing the Universe; Part I. Conceptual Foundations: 1. Newtonian cosmology; 2. General relativity; 3. Relativistic cosmology; Part II. General Relativity: 4. General covariance; 5. Equivalence principle; 6. Space-time curvature; 7. Einstein field equations of gravitation; Part III. Universal Expansion: 8. Cosmological field equations; 9. Cosmography; 10. Expansion dynamics; Part IV. Expansion Models: 11. Radiation; 12. Matter; 13. Dark energy; 14. Observational constraints; 15. Concordance cosmological model; Part V. Expansion History: 16. Particle era; 17. Plasma era; 18. Galaxy era; 19. Afterword: the new modern cosmology; Part VI: Appendices; Bibliography; Index.

  4. [Traditions of university studies at Kaunas University of Medicine].

    PubMed

    Bruneviciūte, Raimonda; Brazdzionyte, Julija

    2006-01-01

    The aim of this article is to highlight the dimensions of the traditions of the idea of the university that are relevant in our today's world--the autonomy of the university, education of a free and creative personality, and belonging to the unified space of studies--and to review the experience of Kaunas University of Medicine in the development of the traditions of university studies. The research object was university studies, and the methods applied in this research were analysis of literature and analysis of documents. The article consists of the introduction, two parts, and generalization. The first part discusses the autonomy of the university, the importance of liberal studies, and the influence of the European higher education and provides a generalized survey of the historical tradition of university studies in Lithuania. The second part of the article reviews the predominant factors that condition the development of university studies at Kaunas University of Medicine: organization of studies and implementation of liberal studies realized through general university education subjects into the modern content of university studies. The generalization of the results of the performed analysis allows for stating that the contents and the organization of curricula and the ongoing reforms at Kaunas University of Medicine expand the continuity of the traditions of the European university education, highlight the idea of the university, and realize university studies that reflect modern global tendencies. PMID:17090986

  5. Universities Venture into Venture Capitalism.

    ERIC Educational Resources Information Center

    Desruisseaux, Paul

    2000-01-01

    Reports that some universities are starting their own venture-capital funds to develop campus companies, or are investing endowment funds with established venture-capital firms inclined to finance potential spinoffs from campus research. Examples cited are from the University of Alabama, Vanderbilt University (Tennessee), University of…

  6. State University System of Florida

    ERIC Educational Resources Information Center

    Board of Governors, State University System of Florida, 2012

    2012-01-01

    This paper presents some information about the State University System of Florida. The following are presented in this paper: (1) University Work Plans and Annual Reports; (2) State University System 2009 Annual Report; (3) Quick Facts: Planned New Degree Programs--2010 to 2013; (4) State University System Tuition Differential Summary, FY…

  7. Universal Design for Academic Facilities

    ERIC Educational Resources Information Center

    Salmen, John P. S.

    2011-01-01

    Universal design (UD) can play a role in many aspects of academic life and is often thought of in the context of learning. However, this chapter focuses on the impact of UD on the design of facilities in a university or campus setting. Universal design has the potential for transforming universities into truly egalitarian institutions that…

  8. Student Perceptions of University Effectiveness.

    ERIC Educational Resources Information Center

    Kleemann, Gary L.; Richardson, Richard C., Jr.

    Student perceptions of the effectiveness of three state universities was studied: Arizona State University, University of Arizona, and Northern Arizona University. An operational definition of effectiveness was proposed based on the literature, and a list of organizational activities was validated by administrators, faculty, community…

  9. Universals in the World's Musics

    ERIC Educational Resources Information Center

    Brown, Steven; Jordania, Joseph

    2013-01-01

    Many decades of skepticism have prevented the field of musicology from embracing the importance of musical universals. When universals "have" been discussed, it has generally been in the form of meta-critiques about the concept of universals, rather than in positive proposals about actual universals. We present here a typology of four categories…

  10. The Urban University in America.

    ERIC Educational Resources Information Center

    Berube, Maurice R.

    The urban university has become the dominant institution of higher learning in America. Although the concept of university is in keeping with traditions in American higher education, there are major obstacles to the fulfillment of the urban university's purpose. The urban college and university have great potential in playing an increasingly…

  11. NRC Targets University Reactors.

    ERIC Educational Resources Information Center

    Marshall, Eliot

    1984-01-01

    The Nuclear Regulatory Commission (NRC) wants universities to convert to low-grade fuel in their research reactions. Researchers claim the conversion, which will bring U.S. reactors in line with a policy the NRC is trying to impress on foreigners, could be financially and scientifically costly. Impact of the policy is considered. (JN)

  12. Oregon State University

    ERIC Educational Resources Information Center

    Sanderson, Rebecca A.; Ketcham, Patricia L.

    2009-01-01

    Oregon State University (OSU) is located in Corvallis, a community of 53,000 people situated in the heart of the Willamette Valley between Portland and Eugene. Approximately 15,700 undergraduate and 3,400 graduate students, including 2,600 U.S. students of color and 950 international students, are currently enrolled at OSU across 11 academic…

  13. Mathematics: The Universal Language?

    ERIC Educational Resources Information Center

    Hoffert, Sharon B.

    2009-01-01

    Mathematics is considered the universal language, but students who speak languages other than English have difficulty doing mathematics in English. For instance, because of a lack of familiarity with the problem's context, many have trouble understanding exactly what operations to perform. In the United States, approximately one in seven students…

  14. A Universal Phylogenetic Tree.

    ERIC Educational Resources Information Center

    Offner, Susan

    2001-01-01

    Presents a universal phylogenetic tree suitable for use in high school and college-level biology classrooms. Illustrates the antiquity of life and that all life is related, even if it dates back 3.5 billion years. Reflects important evolutionary relationships and provides an exciting way to learn about the history of life. (SAH)

  15. Colorado State University

    ERIC Educational Resources Information Center

    McKelfresh, David A.; Bender, Kim K.

    2009-01-01

    Colorado State University (CSU) is located in Fort Collins, which is a midsize city of 134,000 situated in Northern Colorado at the western edge of the Great Plains and at the base of the Rocky Mountains. CSU's total enrollment is approximately 25,000 students. The Division of Student Affairs comprises 30 departments organized into programmatic…

  16. The Changing University?

    ERIC Educational Resources Information Center

    Schuller, Tom, Ed.

    This collection of papers investigates change and compares university education experiences worldwide, looking at it from the perspective of numbers of students, range of institutions, funding, institutional functions, boundaries, and directions, orientation of students and staff, and institutional change. After an introduction by Tom Schuler,…

  17. Scaling, Universality, and Geomorphology

    NASA Astrophysics Data System (ADS)

    Dodds, Peter Sheridan; Rothman, Daniel H.

    Theories of scaling apply wherever similarity exists across many scales. This similarity may be found in geometry and in dynamical processes. Universality arises when the qualitative character of a system is sufficient to quantitatively predict its essential features, such as the exponents that characterize scaling laws. Within geomorphology, two areas where the concepts of scaling and universality have found application are the geometry of river networks and the statistical structure of topography. We begin this review with a pedagogical presentation of scaling and universality. We then describe recent progress made in applying these ideas to networks and topography. This overview leads to a synthesis that attempts a classification of surface and network properties based on generic mechanisms and geometric constraints. We also briefly review how scaling and universality have been applied to related problems in sedimentology-specifically, the origin of stromatolites and the relation of the statistical properties of submarine-canyon topography to the size distribution of turbidite deposits. Throughout the review, our intention is to elucidate not only the problems that can be solved using these concepts, but also those that cannot.

  18. Personnel Management. Universities.

    ERIC Educational Resources Information Center

    Ohio Board of Regents, Columbus. Management Improvement Program.

    This manual is one of 10 completed in the Ohio Management Improvement Program (MIP) during the 1971-73 biennium. In this project, Ohio's 34 public universities and colleges, in an effort directed and staffed by the Ohio Board of Regents, have developed manuals of management practices, in this case, concerning personnel management. Emphasis in this…

  19. University research in aeronautics

    NASA Technical Reports Server (NTRS)

    Duberg, J. E.

    1975-01-01

    The contributions which universities can make to aeronautical research projects are discussed. The activities of several facilities are presented to show the effectiveness of the educational and research programs. Reference is made to the Intergovernmental Personnel Act of 1970 which permits an exchange of federal agency personnel with state and local governments and with public and private higher education schools.

  20. College and University Libraries.

    ERIC Educational Resources Information Center

    Shubert, Joseph F., Ed.; Josey, E. J., Ed.

    1986-01-01

    Following an introductory discussion by E. J. Josey that provides a perspective on college and university libraries, the following essays are presented: (1) "Academic Library Planning--Definitions and Early Planning Studies in Academic Libraries" (Stanton F. Biddle); (2) "Academic Libraries and Academic Computing--Rationale for a Modern Marriage"…

  1. Mobility of University Staff.

    ERIC Educational Resources Information Center

    Council for Cultural Cooperation, Strasbourg (France).

    This study deals with interuniversity mobility. Part I examines the harmonization of action taken to encourage mobility, the removal of legislative and statutory obstacles to mobility, the simplification of university staff regulations and careers, and incentives to mobility. Part II describes the ideas and activities of UNESCO, the Council of…

  2. Highbrows in University Education

    ERIC Educational Resources Information Center

    Hofman, Adriaan; Van Den Berg, Muriel

    2004-01-01

    Is it still possible to combine two programmes of study in higher education, and if so, what are the characteristics of these double-students and what kind of obstacles do they face? In the Netherlands, about 10 percent of students in university education take two studies at the same time. Different theoretical approaches offer hypotheses to…

  3. Radiation in the universe

    NASA Technical Reports Server (NTRS)

    Stuhlinger, Ernst; Truemper, Joachim; Weisskopf, Martin

    1992-01-01

    When Wilhelm Conrad Roentgen discovered radiation one hundred years ago, it seemed that what was discovered was one of the rarest and most volatile members of the family of the basic modules of our natural world. Today cosmologists report that a substantial part of the universe's radiation energy consists of X-rays, which travel through cosmic space with the speed of light.

  4. Creating Adaptable Universities

    ERIC Educational Resources Information Center

    Spanier, Graham B.

    2010-01-01

    Shifting demographics, rising costs of operations, a changing competitive landscape, reductions in state appropriations, pressures for accountability, and a widespread economic decline characterize the environment in which today's colleges and universities operate. This article examines some of the current responses to these challenges and…

  5. University Student Online Plagiarism

    ERIC Educational Resources Information Center

    Wang, Yu-mei

    2008-01-01

    This article reports a study investigating university student online plagiarism. The following questions are investigated: (a) What is the incidence of student online plagiarism? (b) What are student perceptions regarding online plagiarism? (c) Are there any differences in terms of student perceptions of online plagiarism and print plagiarism? (d)…

  6. A Universe of Questions.

    ERIC Educational Resources Information Center

    Zeldovich, Yakov

    1992-01-01

    Reprinted from the original Russian manuscript of Yakov Zeldovich, this article chronicles his studies of the universe and his attempts to construct a theory of its evolution. He provides the high school student with compelling cosmological discussions about uniformity, galactic clusters, radiation, evolution, the big bang, and gravitational…

  7. Revisiting the University Front

    ERIC Educational Resources Information Center

    Lock, Grahame; Lorenz, Chris

    2007-01-01

    The article argues that the most important trends in the recent metamorphosis of higher education, especially of university teaching and research, cannot be understood without placing them in the context of general developments in political life. Both processes reveal alarming features and there is a link between them. In recent decades a religion…

  8. Universal voice processor development

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The development of a universal voice processor is discussed. The device is based on several circuit configurations using hybrid techniques to satisfy the electrical specifications. The steps taken during the design process are described. Circuit diagrams of the final design are presented. Mathematical models are included to support the theoretical aspects.

  9. Islamist Movement Challenges Universities

    ERIC Educational Resources Information Center

    Lindsey, Ursula

    2013-01-01

    In Tunisian and Egyptian universities, scholars face a growing Islamist resolve to remake their countries on the basis of religious principles. Both Tunisia and Egypt face questions that could affect higher education across the Middle East and North Africa: Can their new Islamist governments spread conservative religious values and also create…

  10. [Harvard University Archives.

    ERIC Educational Resources Information Center

    Horn, David E.

    A series of three papers on the Harvard University Archives is presented. The first paper gives the history of the Archives and describes the collections. The second paper deals with the accessioning and preservation of records. The third paper describes the reference service. In each paper the particular description of the Harvard University…

  11. Discovering the Invisible Universe.

    ERIC Educational Resources Information Center

    Friedman, Herbert

    1991-01-01

    The discovery of radio waves, infrared, and x-rays and their importance in describing the universe and its origins is discussed. Topics include radio waves from space, the radio pioneers of World War II, radio telescopes, infrared radiation, satellites, space missions, and x-ray telescopes. (KR)

  12. Universities in Their Communities

    ERIC Educational Resources Information Center

    Robinson, Fred

    2012-01-01

    Universities often seem to be far more concerned about their international connections than their local relationships. The local context seems not to matter much either to their jetsetting vice-chancellors or to their lecturers and researchers under pressure to get papers published in obscure journals. That is how it may seem, but it is not…

  13. [University of California Archives.

    ERIC Educational Resources Information Center

    Pratt, Carol S.

    The historical development of the University of California Archives is traced. In 1929 the U.S. Bureau of the Budget foresaw the need to develop a method to rapidly separate valuable from routine documents and to establish guidelines for the evaluation of records. Records management -- a system to store, service, analyze, and weed documents -- has…

  14. Entropy of the Universe

    NASA Astrophysics Data System (ADS)

    Sato, Humitaka

    2010-06-01

    Charles Darwin's calculation of a life of Earth had ignited Kelvin's insight on a life of Sun, which had eventually inherited to the physical study of stellar structure and energy source. Nuclear energy had secured a longevity of the universe and the goal of the cosmic evolution has been secured by the entropy of black holes.

  15. Universal nonlinear entanglement witnesses

    SciTech Connect

    Kotowski, Marcin; Kotowski, Michal

    2010-06-15

    We give a universal recipe for constructing nonlinear entanglement witnesses able to detect nonclassical correlations in arbitrary systems of distinguishable and/or identical particles for an arbitrary number of constituents. The constructed witnesses are expressed in terms of expectation values of observables. As such, they are, at least in principle, measurable in experiments.

  16. University City Core Plan.

    ERIC Educational Resources Information Center

    Philadelphia City Planning Commission, PA.

    A redevelopment plan for an urban core area of about 300 acres was warranted by--(1) unsuitable building conditions, (2) undesirable land usage, and (3) faulty traffic circulation. The plan includes expansion of two universities and creation of a regional science center, high school, and medical center. Guidelines for proposed land use and zoning…

  17. Teaching Geomorphology at University

    ERIC Educational Resources Information Center

    Sugden, David; Hamilton, Patrick

    1978-01-01

    Geomorphology courses in British universities emphasize the main landform/process systems rather than more abstract concepts. Recommends a more theoretical focus on fundamental geomorphic processes and methodological problems. Available from: Faculty of Modern Studies, Oxford Polytechnic, Headington, Oxford OX3 OBP, England. (Author/AV)

  18. University Community Survey.

    ERIC Educational Resources Information Center

    Francis, John Bruce; Lewis, Steven

    This report is of an omnibus survey of campus attitudes conducted by the Survey Research Center (SRC) of the State University of New York at Buffalo. Its primary purpose was to provide accurate information as a basis for effective decisions by institutional policy makers. A random sample of 326 students, 98 faculty, and 95 staff participated in…

  19. Howard University Bookstore

    ERIC Educational Resources Information Center

    Maxon, Hazel Carter; Negron, Jaime

    1977-01-01

    Two full-time university bookstores, with three satellites helping during rush period, serve the Howard students and faculty. Solutions to problems of space, acquiring used books, and communications with faculty members are discussed, and the successful retailing of black studies books is described. (LBH)

  20. Evolution of the Universe

    NASA Astrophysics Data System (ADS)

    Primack, Joel

    2006-04-01

    Cosmology is in the midst of a scientific revolution that is establishing its lasting foundations. The good agreement between many different sorts of observations and the predictions of the now-standard Lambda Cold Dark Matter (LCDM) theory gives us hope that this is humanity's first picture of the history of the universe as a whole that might actually be true. An unexpected feature of this new picture is that we humans appear to be central or special in many ways -- for example, we are made of the rarest stuff in the universe (stardust); we are intermediate in size between the smallest possible size (the Planck length) and the largest size (the cosmic horizon); and we are living at a pivotal time: the period in the history of the universe when its expansion began to accelerate rather than slow down, and in the middle of the ten-billion-year lifetime of our solar system and of the billion year most habitable period of our planet, and at what must be the end of the exponential growth of human impact on the earth. This talk will review key observations that support modern cosmology, describe some symbolic ways of understanding the modern cosmos, and discuss some possible implications of a cosmic perspective for our 21st century worldview. Based on a new book, The View from the Center of the Universe: Discovering Our Extraordinary Place in the Cosmos, by Joel R. Primack and Nancy Ellen Abrams (Riverhead Books, April 2006).

  1. Universal nanopatternable interfacial bonding.

    PubMed

    Ding, Yuzhe; Garland, Shaun; Howland, Michael; Revzin, Alexander; Pan, Tingrui

    2011-12-01

    A nanopatternable polydimethylsiloxane (PDMS) oligomer layer is demonstrated as an interfacial adhesive for its intrinsic transferability and universal adhesiveness. Utilizing the well-established surface modification and bonding techniques of PDMS surfaces, irreversible bonding is formed (up to 400 kPa) between a wide range of substrate pairs, representing ones within and across different materials categories, including metals, ceramics, thermoset, and thermoplastic polymers.

  2. The Universal Trap.

    ERIC Educational Resources Information Center

    Goodman, Paul

    The compulsory system of education is criticized on the grounds that it has become a regimented "universal trap" antithetical to democracy. In contrast to the Jeffersonian concept of education in the service of citizen initiative for the preservation of freedom, current compulsory education is a tool of industrialism and of a rigidly stratified…

  3. University Libraries in Transition.

    ERIC Educational Resources Information Center

    Hyatt, James A.

    1986-01-01

    College and university libraries are experiencing change in the ways they provide services and in their responses to rising costs and reduced financial support. These conditions result from three major phenomena: the information explosion, the technology revolution, and escalating library costs. (MLW)

  4. University-linked localities

    PubMed Central

    Spicer, John; Gnani, Shamini

    2012-01-01

    In this article, we propose that reframing the old concept of ‘academic general practices’ as ‘university-linked localities’ will help to integrate the work of those leading commissioning, education, research and public health. It will provide a ‘playground’ for different disciplines to creatively interact for the benefit of all. PMID:26265944

  5. Universal Nonverbal Intelligence Test.

    ERIC Educational Resources Information Center

    Bracken, Bruce A.; McCallum, R. Steve

    This kit presents all components of the Universal Nonverbal Intelligence Test (UNIT), a newly developed instrument designed to measure the general intelligence and cognitive abilities of children and adolescents (ages 5 through 17) who may be disadvantaged by traditional verbal and language-loaded measures such as children with speech, language,…

  6. University Study in Canada.

    ERIC Educational Resources Information Center

    Association of Universities and Colleges of Canada, Ottawa (Ontario). International Programmes Div.

    These notes for overseas students intending to attend university in Canada contain information on admission requirements and application and registration procedures. A sample budget for a 1967-68 undergraduate as well as a discussion of medical and other insurance are included in the summary of possible financial expenditures. Although there are…

  7. The University Needs "You"

    ERIC Educational Resources Information Center

    Webb, Allen

    2009-01-01

    Colleges and universities need English education professors who know what it is to teach five classes a day, accommodate IEPs, and still take on extracurricular activities. They need English education professors who not only present at NCTE Annual Conventions, but who also want to be in schools talking to teachers on a regular basis. They need…

  8. Organizing University Marketing.

    ERIC Educational Resources Information Center

    Taylor, Thomas E.

    During a period of projected declining enrollments some years ago, colleges and universities began looking to business and industry for models and methods to achieve stability and exhibit accountability. Zero-based budgeting, computerized record keeping, and planned-programmed-budgeting systems found their way to college campuses. A trend to…

  9. University Libraries in Pakistan.

    ERIC Educational Resources Information Center

    Haider, Syed Jalaluddin

    1986-01-01

    This profile of university libraries in Pakistan covers history of higher education and role of the library; organization of library service (strong central library, decentralized library service, central library with department libraries); resources and collection building; technical processing; readers' services; administration and staffing;…

  10. Reinventing the University Press.

    ERIC Educational Resources Information Center

    Bryant, Eric

    1994-01-01

    Discusses how librarians and university press staffers could cooperate to improve the scholarly communication system. Causes of system decline, the environment for cooperation, several change models, possible changes to the publish or perish tenure system, and the probability of a slow transition to a new scholarly communications model are…

  11. Mapping the Universe.

    NASA Astrophysics Data System (ADS)

    Landy, S. D.

    1999-06-01

    Galaxies congregate into clusters, clusters amass into superclusters and so on - at every observed scale, as astronomers build maps of the sky, they find matter organized into clumps. Yet taken as a whole, the texture of the universe is smooth, in keeping with theory. A new "music of the spheres" may explain how ordered structures emerged from the original smooth chaos.

  12. The Classification of Universes

    SciTech Connect

    Bjorken, J

    2004-04-09

    We define a universe as the contents of a spacetime box with comoving walls, large enough to contain essentially all phenomena that can be conceivably measured. The initial time is taken as the epoch when the lowest CMB modes undergo horizon crossing, and the final time taken when the wavelengths of CMB photons are comparable with the Hubble scale, i.e. with the nominal size of the universe. This allows the definition of a local ensemble of similarly constructed universes, using only modest extrapolations of the observed behavior of the cosmos. We then assume that further out in spacetime, similar universes can be constructed but containing different standard model parameters. Within this multiverse ensemble, it is assumed that the standard model parameters are strongly correlated with size, i.e. with the value of the inverse Hubble parameter at the final time, in a manner as previously suggested. This allows an estimate of the range of sizes which allow life as we know it, and invites a speculation regarding the most natural distribution of sizes. If small sizes are favored, this in turn allows some understanding of the hierarchy problems of particle physics. Subsequent sections of the paper explore other possible implications. In all cases, the approach is as bottoms up and as phenomenological as possible, and suggests that theories of the multiverse so constructed may in fact lay some claim of being scientific.

  13. Masters of the universe?

    NASA Astrophysics Data System (ADS)

    Austin, Matt; Stock, Dave

    2010-08-01

    MEETING REPORT Massive stars make a profound impact on their surroundings, their galaxies and the evolution of the universe as a whole. Matt Austin and Dave Stock report on an RAS Discussion Meeting that considered current progress in understanding these complex stars.

  14. Homecoming at Atwater University

    ERIC Educational Resources Information Center

    Marshall, Sarah M.; Van Pelt, Scott; Kingsak, Phoebe; Williams, Alexander

    2015-01-01

    Atwater University (AU) administration is struggling with an increased number of student alcohol-related problems. In particular, during the annual homecoming parade, students are extremely intoxicated and belligerent toward alumni. The new dean of students is appalled by the condoned student behavior. He also received two complaint letters from…

  15. Overseas Universities 26.

    ERIC Educational Resources Information Center

    Harris, R. G., Ed.

    Educational policies and programs in overseas universities of developing nations are explored in a series of nine articles. In "Development and the Role of the Humanities," Sir Cyril Philips calls for a reconsideration of the role of the humanities in the educational policies of developing nations and international aid-giving agencies. Malcolm…

  16. Images of the Universe

    NASA Astrophysics Data System (ADS)

    Stott, Carole

    1991-11-01

    Images of the Universe is a special collection of essays written to celebrate astronomy and the inauguration of the British Astronomical Association. Colin Ronan opens the book with a fascinating account of developments over the past hundred years. Next, the solar system is explored by Richard Baum, John Rogers, Richard McKim, and Patrick Moore. Comets and meteors are explained by David Hughes. The stars, birthplace of the elements, are examined by Jacqueline Mitton and John Isles. Paul Murdin gives an account of the brightest supernova to be seen from Earth since 1604. Iain Nicolson explores G2, the single dwarf called the Sun. Heather Couper and Nigel Henbest look at the Milky Way, the hazy band of light that is the edge on view of our galaxy. Malcolm Longair looks beyond our own galaxy into the deep sky. Paul Davies gives an account of the first one second of the existence of our expanding Universe. How did it all happen? Martin Rees, the cosmologist, speculates on the origin of the Universe. The ensuing narrative by many famous astronomers and science writers is written at a general level and will be accessible to anyone with a passing interest in the astronomical wonders of our universe. Carole Stott is the author of The Greenwich Guide to Stargazing (1990), and The Greenwich Guide to Astronomy in Action (1990).

  17. Universities Are Funny Places!

    ERIC Educational Resources Information Center

    Lawless, Ann

    2006-01-01

    Universities are funny places. They have a strong sense of hierarchy and rank. They have an amazing disparity in salary levels and status between staff, are class conscious, and are run by a large bureaucracy that oils and keeps the machinery going. They operate as educational institutions and yet also are entrepreneurial, marketing themselves in…

  18. Life in the Universe

    ERIC Educational Resources Information Center

    Lowman, Paul D., Jr.

    2003-01-01

    The belief that life exists in the universe is an optimism shared by many. With several manned missions expected to be carried out in the future, the possibility of discovering life in outer space will revolutionize the field of astrobiology. In this article, the author presents a summary of recent developments and discoveries made in the search…

  19. Entrepreneurial Planning: Tufts University.

    ERIC Educational Resources Information Center

    Dunn, John A.

    1990-01-01

    This paper focuses on key strategic decisions taken at Tufts University (Massachusetts) under President Jean Mayer noting the role of formal planning and institutional research. Initiatives in the following areas are described: the School of Veterinary Medicine, nutrition, environmental management, entrepreneurial liberation, fund raising, and a…

  20. Tax Reform & University Development.

    ERIC Educational Resources Information Center

    Myers, John Holt

    This brochure discusses the implications of the Tax Reform Act of 1969 for university and college development officers charged with the responsibility for solicitation of gifts, bequests and grants from foundations. The solicitation of deferred gifts, bequests and grants from foundations is discussed in chapter one in relation to tax reform and…

  1. Explorers of the Universe

    NASA Technical Reports Server (NTRS)

    Alvarez, Marino C.; Busby, Michael R.; Sotoohi, Goli; Rodriguez, William J.; Hennig, Lee Ann; Berenty, Jerry; King, Terry; Grener, Doreen; Kruzan, John

    1998-01-01

    The Explorers of the Universe is a multifaceted scientific/literacy project that involves teachers and their students with problem oriented situations using authentic materials. This paper presents examples of self-directed cases researched by high school students and the met acognitive tools they use in the planning, carrying out, and finalizing their reports.

  2. Should Universities Promote Employability?

    ERIC Educational Resources Information Center

    McCowan, Tristan

    2015-01-01

    Employability is becoming increasingly central to the mission and functioning of universities, spurred on by national and supranational agencies, and the demands of marketisation. This article provides a response to the normative dimensions of the question, progressing through four stages: first, there is a brief consideration of the meaning and…

  3. The Universe's First Fireworks

    NASA Technical Reports Server (NTRS)

    2006-01-01

    [figure removed for brevity, see original site] [figure removed for brevity, see original site] [figure removed for brevity, see original site] Poster VersionFigure 1Figure 2

    This is an image from NASA's Spitzer Space Telescope of stars and galaxies in the Ursa Major constellation. This infrared image covers a region of space so large that light would take up to 100 million years to travel across it. Figure 1 is the same image after stars, galaxies and other sources were masked out. The remaining background light is from a period of time when the universe was less than one billion years old, and most likely originated from the universe's very first groups of objects -- either huge stars or voracious black holes. Darker shades in the image on the left correspond to dimmer parts of the background glow, while yellow and white show the brightest light.

    Brief History of the Universe In figure 2, the artist's timeline chronicles the history of the universe, from its explosive beginning to its mature, present-day state.

    Our universe began in a tremendous explosion known as the Big Bang about 13.7 billion years ago (left side of strip). Observations by NASA's Cosmic Background Explorer and Wilkinson Anisotropy Microwave Probe revealed microwave light from this very early epoch, about 400,000 years after the Big Bang, providing strong evidence that our universe did blast into existence. Results from the Cosmic Background Explorer were honored with the 2006 Nobel Prize for Physics.

    A period of darkness ensued, until about a few hundred million years later, when the first objects flooded the universe with light. This first light is believed to have been captured in data from NASA's Spitzer Space Telescope. The light detected by Spitzer would have originated as visible and ultraviolet light, then stretched, or redshifted, to lower-energy infrared wavelengths during its long voyage to reach us across expanding space. The light detected by the

  4. Universe or Multiverse?

    NASA Astrophysics Data System (ADS)

    Carr, Bernard

    2009-08-01

    Part I. Overviews: 1. Introduction and overview Bernard Carr; 2. Living in the multiverse Steven Weinberg; 3. Enlightenment, knowledge, ignorance, temptation Frank Wilczek; Part II. Cosmology and Astrophysics: 4. Cosmology and the multiverse Martin J. Rees; 5. The anthropic principle revisited Bernard Carr; 6. Cosmology from the top down Stephen Hawking; 7. The multiverse hierarchy Max Tegmark; 8. The inflationary universe Andrei Linde; 9. A model of anthropic reasoning: the dark to ordinary matter ratio Frank Wilczek; 10. Anthropic predictions: the case of the cosmological constant Alexander Vilenkin; 11. The definition and classification of universes James D. Bjorken; 12. M/string theory and anthropic reasoning Renata Kallosh; 13. The anthropic principle, dark energy and the LHC Savas Dimopoulos and Scott Thomas; Part III. Particle Physics and Quantum Theory: 14. Quarks, electrons and atoms in closely related universes Craig J. Hogan; 15. The fine-tuning problems of particle physics and anthropic mechanisms John F. Donoghue; 16. The anthropic landscape of string theory Leonard Susskind; 17. Cosmology and the many worlds interpretation of quantum mechanics Viatcheslav Mukhanov; 18. Anthropic reasoning and quantum cosmology James B. Hartle; 19. Micro-anthropic principle for quantum theory Brandon Carter; Part IV. More General Philosophical Issues: 20. Scientific alternatives to the anthropic principle Lee Smolin; 21. Making predictions in a multiverse: conundrums, dangers, coincidences Anthony Aguirre; 22. Multiverses: description, uniqueness and testing George Ellis; 23. Predictions and tests of multiverse theories Don N. Page; 24. Observation selection theory and cosmological fine-tuning Nick Bostrom; 25. Are anthropic arguments, involving multiverses and beyond, legitimate? William R. Stoeger; 26. The multiverse hypothesis: a theistic perspective Robin Collins; 27. Living in a simulated universe John D. Barrow; 28. Universes galore: where will it all end? Paul

  5. The Artful Universe Expanded

    NASA Astrophysics Data System (ADS)

    Barrow, John D.

    2005-07-01

    Our love of art, writes John Barrow, is the end product of millions of years of evolution. How we react to a beautiful painting or symphony draws upon instincts laid down long before humans existed. Now, in this enhanced edition of the highly popular The Artful Universe , Barrow further explores the close ties between our aesthetic appreciation and the basic nature of the Universe. Barrow argues that the laws of the Universe have imprinted themselves upon our thoughts and actions in subtle and unexpected ways. Why do we like certain types of art or music? What games and puzzles do we find challenging? Why do so many myths and legends have common elements? In this eclectic and entertaining survey, Barrow answers these questions and more as he explains how the landscape of the Universe has influenced the development of philosophy and mythology, and how millions of years of evolutionary history have fashioned our attraction to certain patterns of sound and color. Barrow casts the story of human creativity and thought in a fascinating light, considering such diverse topics as our instinct for language, the origins and uses of color in nature, why we divide time into intervals as we do, the sources of our appreciation of landscape painting, and whether computer-generated fractal art is really art. Drawing on a wide variety of examples, from the theological questions raised by St. Augustine and C.S. Lewis to the relationship between the pure math of Pythagoras and the music of the Beatles, The Artful Universe Expanded covers new ground and enters a wide-ranging debate about the meaning and significance of the links between art and science.

  6. Shaping the Future with Knowledge

    ERIC Educational Resources Information Center

    Khan, Abdul Waheed

    2005-01-01

    This article is an edited version of an address by Abdul Waheed Khan to a Special Convocation at Jamia Hamdard University, New Delhi, on 4 January 2005. Professor Khan identifies major societal trends and likely future developments, with particular reference to India. He argues that knowledge will play a central role in shaping economic growth,…

  7. Universal Test Facility

    NASA Technical Reports Server (NTRS)

    Laughery, Mike

    1994-01-01

    A universal test facility (UTF) for Space Station Freedom is developed. In this context, universal means that the experimental rack design must be: automated, highly marketable, and able to perform diverse microgravity experiments according to NASA space station requirements. In order to fulfill these broad objectives, the facility's customers, and their respective requirements, are first defined. From these definitions, specific design goals and the scope of the first phase of this project are determined. An examination is first made into what types of research are most likely to make the UTF marketable. Based on our findings, the experiments for which the UTF would most likely be used included: protein crystal growth, hydroponics food growth, gas combustion, gallium arsenide crystal growth, microorganism development, and cell encapsulation. Therefore, the UTF is designed to fulfill all of the major requirements for the experiments listed above. The versatility of the design is achieved by taking advantage of the many overlapping requirements presented by these experiments.

  8. Life in the Universe

    NASA Astrophysics Data System (ADS)

    2001-10-01

    Live Webcast from Europe's Leading Research Organisations Summary Is there life elsewhere in the Universe? Are we alone? These questions have always fascinated humanity and for more than 50 years, physicists, biologists, chemists, cosmologists, astronomers and other scientists have worked tirelessly to answer these fundamental questions. And now this November via webcast, all the world will have the opportunity to see and hear the latest news on extraterrestrial life from the most prestigious research centers and how for the past three months, European students have had the chance to jump into the scientists' shoes and explore these questions for themselves. The event is being sponsored by the European Organisation for Nuclear Research (CERN) , the European Space Agency (ESA) and the European Southern Observatory (ESO) , in cooperation with the European Molecular Biology Laboratory (EMBL) and the European Synchrotron Radiation Facility (ESRF) and the European Association for Astronomy Education (EAAE). "Life in the Universe" is being mounted in collaboration with the Research Directorate-General of the European Commission for the European Week of Science and Technology in November 2001 . "Life in the Universe" competitions are already underway in 23 European countries to find the best projects from school students between 14 and 18. Two winning teams from each country will be invited to a final event at CERN in Geneva on 8-11 November 2001 to present their projects and discuss them with a panel of International Experts at a special three-day event. They will also compete for the "Super Prize" - a free visit to ESA's and ESO's research and technology facilities at Kourou and Paranal in South America. Students participating in the programme are encouraged to present their views on extraterrestrial life creatively. The only requirement is that the views be based upon scientific evidence. Many projects are being submitted just now - among them are scientific essays

  9. Mapping the universe.

    PubMed

    Geller, M J; Huchra, J P

    1989-11-17

    Maps of the galaxy distribution in the nearby universe reveal large coherent structures. The extent of the largest features is limited only by the size of the survey. Voids with a density typically 20 percent of the mean and with diameters of 5000 km s(-1) are present in every survey large enough to contain them. Many galaxies lie in thin sheet-like structures. The largest sheet detected so far is the "Great Wall" with a minimum extent of 60 h(-1) Mpc x 170 h(-1) Mpc, where h is the Hubble constant in units of 100 km s(-1) Mpc(-1). The frequent occurrence of these structures is one of several serious challenges to our current understanding of the origin and evolution of the large-scale distribution of matter in the universe.

  10. Mapping the universe

    NASA Technical Reports Server (NTRS)

    Geller, Margaret J.; Huchra, John P.

    1989-01-01

    Maps of the galaxy distribution in the nearby universe reveal large coherent structures. The extent of the largest features is limited only by the size of the survey. Voids with a density typically 20 percent of the mean and with diameters of 5000 km/s are present in every survey large enough to contain them. Many galaxies lie in thin sheet-like structures. The largest sheet detected so far is the 'Great Wall' with a minimum extent of 60/h Mpc x 170/h Mpc, where h is the Hubble constant in units of 100 km/s per Mpc. The frequent occurrence of these structures is one of several serious challenges to our current understanding of the origin and evolution of the large-scale distribution of matter in the universe.

  11. Universal Test Facility

    NASA Astrophysics Data System (ADS)

    Laughery, Mike

    A universal test facility (UTF) for Space Station Freedom is developed. In this context, universal means that the experimental rack design must be: automated, highly marketable, and able to perform diverse microgravity experiments according to NASA space station requirements. In order to fulfill these broad objectives, the facility's customers, and their respective requirements, are first defined. From these definitions, specific design goals and the scope of the first phase of this project are determined. An examination is first made into what types of research are most likely to make the UTF marketable. Based on our findings, the experiments for which the UTF would most likely be used included: protein crystal growth, hydroponics food growth, gas combustion, gallium arsenide crystal growth, microorganism development, and cell encapsulation. Therefore, the UTF is designed to fulfill all of the major requirements for the experiments listed above. The versatility of the design is achieved by taking advantage of the many overlapping requirements presented by these experiments.

  12. Mapping the universe.

    PubMed

    Geller, M J; Huchra, J P

    1989-11-17

    Maps of the galaxy distribution in the nearby universe reveal large coherent structures. The extent of the largest features is limited only by the size of the survey. Voids with a density typically 20 percent of the mean and with diameters of 5000 km s(-1) are present in every survey large enough to contain them. Many galaxies lie in thin sheet-like structures. The largest sheet detected so far is the "Great Wall" with a minimum extent of 60 h(-1) Mpc x 170 h(-1) Mpc, where h is the Hubble constant in units of 100 km s(-1) Mpc(-1). The frequent occurrence of these structures is one of several serious challenges to our current understanding of the origin and evolution of the large-scale distribution of matter in the universe. PMID:17812575

  13. University Reactor Sharing Program

    SciTech Connect

    W.D. Reese

    2004-02-24

    Research projects supported by the program include items such as dating geological material and producing high current super conducting magnets. The funding continues to give small colleges and universities the valuable opportunity to use the NSC for teaching courses in nuclear processes; specifically neutron activation analysis and gamma spectroscopy. The Reactor Sharing Program has supported the construction of a Fast Neutron Flux Irradiator for users at New Mexico Institute of Mining and Technology and the University of Houston. This device has been characterized and has been found to have near optimum neutron fluxes for A39/Ar 40 dating. Institution final reports and publications resulting from the use of these funds are on file at the Nuclear Science Center.

  14. Our evolving universe

    NASA Astrophysics Data System (ADS)

    Longair, Malcolm S.

    Our Evolving Universe is a lucid, non-technical and infectiously enthusiastic introduction to current astronomy and cosmology. Highly illustrated throughout with the latest colour images from the world's most advanced telescopes, it also provides a colourful view of our Universe. Malcolm Longair takes us on a breathtaking tour of the most dramatic recent results astronomers have on the birth of stars, the hunt for black holes and dark matter, on gravitational lensing and the latest tests of the Big Bang. He leads the reader right up to understand the key questions that future research in astronomy and cosmology must answer. A clear and comprehensive glossary of technical terms is also provided. For the general reader, student or professional wishing to understand the key questions today's astronomers and cosmologists are trying to answer, this is an invaluable and inspiring read.

  15. Beyond universal precautions.

    PubMed Central

    Osterman, J W

    1995-01-01

    Universal precautions have gained wide acceptance in the literature and are promoted by major health care regulatory bodies as a measure to prevent nosocomial transmission of bloodborne diseases. Nevertheless, Dr. James G. Wright and associates (see pages 1089 to 1095 of this issue) provide evidence of the infrequent use of universal precautions by surgeons in Toronto. Their findings are consistent with those of similar studies and point to the limitations of any safety approach that relies on the active compliance of individuals rather than on passive, environmental controls. Successful approaches to optimizing workplace safety should first emphasize passive measures for risk abatement, including firm policies, the use of safer equipment and techniques, procedural safeguards and regular monitoring. Routine voluntary screening of patients undergoing procedures that pose a high risk of contamination may improve compliance to safety procedures by health care personnel. Further study is required. PMID:7712416

  16. The universal Higgs fit

    NASA Astrophysics Data System (ADS)

    Giardino, Pier Paolo; Kannike, Kristjan; Masina, Isabella; Raidal, Martti; Strumia, Alessandro

    2014-05-01

    We perform a state-of-the-art global fit to all Higgs data. We synthesise them into a `universal' form, which allows to easily test any desired model. We apply the proposed methodology to extract from data the Higgs branching ratios, production cross sections, couplings and to analyse composite Higgs models, models with extra Higgs doublets, supersymmetry, extra particles in the loops, anomalous top couplings, and invisible Higgs decays into Dark Matter. Best fit regions lie around the Standard Model predictions and are well approximated by our `universal' fit. Latest data exclude the dilaton as an alternative to the Higgs, and disfavour fits with negative Yukawa couplings. We derive for the first time the SM Higgs boson mass from the measured rates, rather than from the peak positions, obtaining M h = 124 .4 ± 1 .6 GeV.

  17. Universality classes of inflation

    SciTech Connect

    Roest, Diederik

    2014-01-01

    We investigate all single-field, slow-roll inflationary models whose slow-roll parameters scale as 1/N in the limit of a large number of e-folds N. We proof that all such models belong to two universality classes, characterised by a single parameter. One class contains small field models like hilltop inflation, while the other class consists of large field models like chaotic inflation. We give the leading expressions for the spectral index and tensor-to-scalar ratio r, which are universal for each class, plus subleading corrections for a number of models. This predicts r either to be unobservably small, r < 0.01, or close to the present observational limit, r ≈ 0.07.

  18. Kansas State University

    SciTech Connect

    Gray, T.; Carnes, K.; Needham, V.

    1995-08-01

    Argonne has fabricated the niobium resonators and some other linac components required for the superconducting accel/decel linac now in operation at Kansas State University. Several staff members from KSU spent a substantial period of time at ANL during FY 1985 in order to learn the technology, and they return occasionally to assemble and test the resonators. There is a continuing interchange of technical information between ANL and KSU related to linac operations, tuning, and resonator maintenance.

  19. Universal Stoppers Are Rupert

    ERIC Educational Resources Information Center

    Jerrard, Richard P.; Wetzel, John E.

    2008-01-01

    A stopper is called "universal" if it can be used to plug pipes whose cross-sections are a circle, a square, and an isosceles triangle, with the diameter of the circle, the side of the square, and the base and altitude of the triangle all equal. Echoing the well-known result for equal cubes that is attributed to Prince Rupert, we show that it is…

  20. Imagine the Universe!

    NASA Technical Reports Server (NTRS)

    2001-01-01

    Welcome to Imagine the Universe! Contained on this CD-ROM you will find three astronomy and space science learning centers, individually captured from the World Wide Web in December of 2000. Each site contains its own learning adventure full of facts, fun, beautiful images, movies, and excitement. (1) Imagine The Universe: this site is dedicated to a discussion about our Universe... what we know about it, how it is evolving, and the kinds of objects and phenomena it contains. Emphasizing the X-ray and gamma-ray parts of the electromagnetic spectrum, it also discusses how scientists know what they know, what mysteries remain, and how the answers to remaining mysteries may one day be found. Lots of movies, quizzes, and a special section for educators. Geared for ages 14 and up. This site can be viewed on-line at http://imagine.gsfc.nasa.gov/. (2) StarChild- a learning center for young astronomers: the 1998 Webby Award Winner for Best Education Website, StarChild is aimed at ages 4-14. It contains easy-to-understand information about our Solar System, the Universe, and space exploration. There are also activities, songs, movies, and puzzles. This site can be viewed on-line at http://starchild.gsfc.nasa.gov/. (3) Astronomy Picture of the Day: APOD offers a new astronomical image and caption each calendar day. We have captured the year 2000 entries of this award-winning site and included them on the disk. The images and information provide a wonderful resource for all ages. This site can be viewed on-line at http://antwrp.gsfc.nasa.gov/apod/astropix.html.

  1. Inflation in the universe

    SciTech Connect

    Turner, M.S.

    1987-05-01

    The hot big bang cosmology, or the standard cosmology as it is appropriately known, is a highly successful model, providing a reliable and tested accounting of the Universe from 0.01 sec after the bang until today, some 15 Gyr later. However, very special initial data seem to be required in order to account for the observed smoothness and flatness of our Hubble volume and for the existence of the small primeval density inhomogeneities required for the formation of structure in the Universe. Inflation offers a means of accounting for these special initial data, which is based upon physics at sub-planck energy scales (<< m/sub pl/ approx. = 10/sup 19/ GeV) and is motivated by contemporary ideas in particle theory. Here I review the status of the 'Inflationary Paradigm'. At present essentially all inflationary models involve a very weakly-coupled (quantified by the presence of a dimensionless parameter of order 10/sup -12/ or so) scalar field which is displaced from the minimum of its potential. Regions of the Universe where the scalar field is initially displaced from its minimum undergo inflation as the scalar field relaxes, resulting in a Universe today which resembles ours in regions much larger than our present Hubble volume (approx. = 10/sup 28/ cm), but which on very large scales (>> 10/sup 28/ cm) may be highly irregular. The most conspicuous blemish on the paradigm is the lack of a compelling particle physics model to implement it. I also review some other unresolved issues, and discuss in detail the all important confrontation between inflation and observational data. Finally, I discuss the possibility that inflation leads to large-scale, primeval magnetic fields of sufficient strength to be of astrophysical interest. 123 refs., 4 figs.

  2. Universal grating coupler design

    NASA Astrophysics Data System (ADS)

    Wang, Yun; Flueckiger, Jonas; Lin, Charlie; Chrostowski, Lukas

    2013-10-01

    A universal design methodology for grating couplers based on the silicon-on-insultator platform is presented in this paper. Our design methodology accomodates various etch depths, silicon thickness (e.g., 220 nm, 300 nm), incident angles, and cladding materials (e.g., silicon oxide or air), and has been verified by simulations and measurement results. Further more, the design methodology presented can be applied to a wide range, from 1260 nm to 1675 nm, of wavelengths.

  3. Dark matter universe.

    PubMed

    Bahcall, Neta A

    2015-10-01

    Most of the mass in the universe is in the form of dark matter--a new type of nonbaryonic particle not yet detected in the laboratory or in other detection experiments. The evidence for the existence of dark matter through its gravitational impact is clear in astronomical observations--from the early observations of the large motions of galaxies in clusters and the motions of stars and gas in galaxies, to observations of the large-scale structure in the universe, gravitational lensing, and the cosmic microwave background. The extensive data consistently show the dominance of dark matter and quantify its amount and distribution, assuming general relativity is valid. The data inform us that the dark matter is nonbaryonic, is "cold" (i.e., moves nonrelativistically in the early universe), and interacts only weakly with matter other than by gravity. The current Lambda cold dark matter cosmology--a simple (but strange) flat cold dark matter model dominated by a cosmological constant Lambda, with only six basic parameters (including the density of matter and of baryons, the initial mass fluctuations amplitude and its scale dependence, and the age of the universe and of the first stars)--fits remarkably well all the accumulated data. However, what is the dark matter? This is one of the most fundamental open questions in cosmology and particle physics. Its existence requires an extension of our current understanding of particle physics or otherwise point to a modification of gravity on cosmological scales. The exploration and ultimate detection of dark matter are led by experiments for direct and indirect detection of this yet mysterious particle.

  4. A Universal Syntax Checker.

    ERIC Educational Resources Information Center

    Leahy, John Francis, III

    A universal syntax checker was constructed to be utilized with a text editor in a time-sharing environment. This syntax checker is a top-down, left-right, slow-back parser that will provide, when supplied the syntax of any language in the Backus-normal form, a syntax check for any string written in a language described. The procedure is capable of…

  5. The International Space University

    NASA Astrophysics Data System (ADS)

    Elaerts, Roger; Peeters, Walter

    2006-05-01

    The International Space University (ISU) offers, with the support of the world space community and within an international and intercultural environment, interdisciplinary post-graduate programmes in space studies. These graduate programmes prepare professionals from all sectors to meet the challenges of international space cooperation and the restructuring of the space sector. Although it was created as recently as 1987, the ISU is remarkably successful: by 2005 it had around 2400 alumni, forming a strong network in the space community.

  6. Dark matter universe

    PubMed Central

    Bahcall, Neta A.

    2015-01-01

    Most of the mass in the universe is in the form of dark matter—a new type of nonbaryonic particle not yet detected in the laboratory or in other detection experiments. The evidence for the existence of dark matter through its gravitational impact is clear in astronomical observations—from the early observations of the large motions of galaxies in clusters and the motions of stars and gas in galaxies, to observations of the large-scale structure in the universe, gravitational lensing, and the cosmic microwave background. The extensive data consistently show the dominance of dark matter and quantify its amount and distribution, assuming general relativity is valid. The data inform us that the dark matter is nonbaryonic, is “cold” (i.e., moves nonrelativistically in the early universe), and interacts only weakly with matter other than by gravity. The current Lambda cold dark matter cosmology—a simple (but strange) flat cold dark matter model dominated by a cosmological constant Lambda, with only six basic parameters (including the density of matter and of baryons, the initial mass fluctuations amplitude and its scale dependence, and the age of the universe and of the first stars)—fits remarkably well all the accumulated data. However, what is the dark matter? This is one of the most fundamental open questions in cosmology and particle physics. Its existence requires an extension of our current understanding of particle physics or otherwise point to a modification of gravity on cosmological scales. The exploration and ultimate detection of dark matter are led by experiments for direct and indirect detection of this yet mysterious particle. PMID:26417091

  7. Astronomy in Romanian universities

    NASA Astrophysics Data System (ADS)

    Barbosu, Mihail

    In this work we present characteristics of the Romanian higher education related to the study of Astronomy. In spite of Romanian economic problems, opportunities for Bachelor's degree, Master's degree (at "Babes-Bolyai" University of Cluj-Napoca) and Ph.D. degree are provided for students enrolled at the faculties of Mathematics or Physics. General regulations, description of courses, research resources and job opportunities are also described and discussed in this paper.

  8. Dark matter universe.

    PubMed

    Bahcall, Neta A

    2015-10-01

    Most of the mass in the universe is in the form of dark matter--a new type of nonbaryonic particle not yet detected in the laboratory or in other detection experiments. The evidence for the existence of dark matter through its gravitational impact is clear in astronomical observations--from the early observations of the large motions of galaxies in clusters and the motions of stars and gas in galaxies, to observations of the large-scale structure in the universe, gravitational lensing, and the cosmic microwave background. The extensive data consistently show the dominance of dark matter and quantify its amount and distribution, assuming general relativity is valid. The data inform us that the dark matter is nonbaryonic, is "cold" (i.e., moves nonrelativistically in the early universe), and interacts only weakly with matter other than by gravity. The current Lambda cold dark matter cosmology--a simple (but strange) flat cold dark matter model dominated by a cosmological constant Lambda, with only six basic parameters (including the density of matter and of baryons, the initial mass fluctuations amplitude and its scale dependence, and the age of the universe and of the first stars)--fits remarkably well all the accumulated data. However, what is the dark matter? This is one of the most fundamental open questions in cosmology and particle physics. Its existence requires an extension of our current understanding of particle physics or otherwise point to a modification of gravity on cosmological scales. The exploration and ultimate detection of dark matter are led by experiments for direct and indirect detection of this yet mysterious particle. PMID:26417091

  9. Universality of particle multiplicities

    SciTech Connect

    Goulianos, K. |

    1994-09-01

    We discuss the scaling properties and universality aspects of the rapidity and multiplicity distributions of particles produced in high energy hadronic and e{sup +}e{sup {minus}} interactions. This paper is based on material presented in three lectures on pomeron phenomenology, which included a review of traditional soft pomeron physics and selected topics on hard diffraction processes probing the structure function of the pomeron.

  10. [Universal electrogustometer EG-2].

    PubMed

    Wałkanis, Andrzej; Czesak, Michał; Pleskacz, Witold A

    2011-01-01

    Electrogustometry is a method for taste diagnosis and measurement. The EG-2 project is being developed in cooperation between Warsaw University of Technology and Military institute of Medicine in Warsaw. The device is an evolution of the recent universal electrogustometer EG-1 prototype. Due to considerations and experiences acquired during prototype usage, many enhancements have been incorporated into device. The aim was to create an easy-to-use, portable, battery powered device, enabled for fast measurements. Developed electrogustometer is using innovative, low-power microprocessor system, which control whole device. User interface is based on 5.7" graphical LCD (Liquid Crystal Display) and touchscreen. It can be directly operated by finger or with optional stylus. Dedicated GUI (Graphical User Interface) offers simple, predefined measurements and advance settings of signal parameters. It is also possible to store measurements results and patients data in an internal memory. User interface is multilanguage. Signals for patients examinations, supplied with bipolar electrode, are generated by an on-board circuit using DDS (Direct-Digital Synthesis) and DAC (Digital-to-Analog Converter). Electrogustometer is able to generate DC, sinus, triangle or rectangle signals with current amplitude from 0 to 500 pA and frequency form 0 to 500 Hz. Device is designed for manual and automeasurement modes. By using USB (Universal Serial Bus) port it is possible to retrieve data stored in internal memory and charging of built-in Li-lon battery as a source of power.

  11. The Flying University

    NASA Astrophysics Data System (ADS)

    Friesen, Catherine

    The Flying University is solo theater performance framed as an academic lecture about Marie Curie and her discovery of radium, delivered to a group of women who have gathered in secret to further their education. As the lecture proceeds, the professor brings in her own research based on a study of Esther Horsch (1905-1991) who lived on a farm in central Illinois. She introduces data from Esther's journals, personal memories, and dreams about Esther's life. The professor's investigation of radium plays at the intersections of magical and mundane, decay and the transformation of life, and the place of ambition in these two women's lives. The intention of this piece is to explore these themes, which are full of mystery, through the traces of the daily lives of Mme. Curie and Esther. Their words and photos are used as roots from which to imagine the things that echo beyond their familiar work; elemental and also fantastically radiant. The Flying University was written and performed by Catherine Friesen April 27-29, 2012 in the Center for Performance Experiment at Hamilton College as part of the University of South Carolina MFA Acting Class of 2013 showcase, Pieces of Eight.

  12. Universality and string theory

    NASA Astrophysics Data System (ADS)

    Bachlechner, Thomas Christian

    The first run at the Large Hadron Collider has deeply challenged conventional notions of naturalness, and CMB polarization experiments are about to open a new window to early universe cosmology. As a compelling candidate for the ultraviolet completion of the standard model, string theory provides a prime opportunity to study both early universe cosmology and particle physics. However, relating low energy observations to ultraviolet physics requires knowledge of the metastable states of string theory through the study of vacua. While it is difficult to directly obtain infrared data from explicit string theory constructions, string theory imposes constraints on low energy physics. The study of ensembles of low energy theories consistent with ultra-violet constraints provides insight on generic features we might expect to occur in string compactifications. In this thesis we present a statistical treatment of vacuum stability and vacuum properties in the context of random supergravity theories motivated by string theory. Early universe cosmology provides another avenue to high energy physics. From the low energy perspective large field inflation is typically considered highly unnatural: the scale relevant for the diameter of flat regions in moduli space is sub-Planckian in regions of perturbative control. To approach this problem, we consider generic Calabi-Yau compactifications of string theory and find that super-Planckian diameters of axion fundamental domains in fact arise generically. We further demonstrate that such super-Planckian flat regions are plausibly consistent with theWeak Gravity Conjecture.

  13. The universal ancestor

    NASA Technical Reports Server (NTRS)

    Woese, C.

    1998-01-01

    A genetic annealing model for the universal ancestor of all extant life is presented; the name of the model derives from its resemblance to physical annealing. The scenario pictured starts when "genetic temperatures" were very high, cellular entities (progenotes) were very simple, and information processing systems were inaccurate. Initially, both mutation rate and lateral gene transfer levels were elevated. The latter was pandemic and pervasive to the extent that it, not vertical inheritance, defined the evolutionary dynamic. As increasingly complex and precise biological structures and processes evolved, both the mutation rate and the scope and level of lateral gene transfer, i.e., evolutionary temperature, dropped, and the evolutionary dynamic gradually became that characteristic of modern cells. The various subsystems of the cell "crystallized," i.e., became refractory to lateral gene transfer, at different stages of "cooling," with the translation apparatus probably crystallizing first. Organismal lineages, and so organisms as we know them, did not exist at these early stages. The universal phylogenetic tree, therefore, is not an organismal tree at its base but gradually becomes one as its peripheral branchings emerge. The universal ancestor is not a discrete entity. It is, rather, a diverse community of cells that survives and evolves as a biological unit. This communal ancestor has a physical history but not a genealogical one. Over time, this ancestor refined into a smaller number of increasingly complex cell types with the ancestors of the three primary groupings of organisms arising as a result.

  14. The Universal Oxygen Connector.

    PubMed

    Lauer, Mark A; Gombkoto, Rebecca L M

    2006-02-01

    The purpose of this article is to describe the benefits of using the Universal Oxygen Connector. Until now, an oxygen hose was only able to connect to a 22-mm fitting, such as those found on humidifiers used in the recovery room, and oxygen tubing was only able to connect to a Christmas tree type adapter. The Universal Oxygen Connector, manufactured and sold by International Medical, Inc (Burnsville, Minn), was developed to allow the practitioner to attach either a 22-mm oxygen hose, oxygen tubing, or a 15-mm oxygen adapter to the same connector. Patients benefit from the administration of supplemental oxygen in the perioperative period. Supplemental oxygen has been shown to decrease postoperative hypoxemia, infection, and in some cases, nausea and vomiting. As such, oxygen should be administered during transport from the operating room to the recovery room, in the recovery room, and at times during transport to the patient room and in the patient room. Oxygen also should be administered whenever a patient receiving oxygen is transported. Use of the Universal Oxygen Connector decreases material waste, decreases hospital costs, saves time and effort and, most importantly, promotes patient safety by providing a versatile system for oxygen delivery.

  15. Worth the Journey: The University Museum, University of Pennsylvania.

    ERIC Educational Resources Information Center

    Academe: Bulletin of the AAUP, 1979

    1979-01-01

    Described is the University of Pennsylvania's University Museum, which is the nation's largest museum devoted to archaeology and anthropology. Though not an art museum, the University Museum contains objects of artistic quality as well as artifacts that reveal whole cultures of such areas as the Near East, Mediterranean, and Egypt. (JMD)

  16. Who Should Go to University? Justice in University Admissions

    ERIC Educational Resources Information Center

    Kotzee, Ben; Martin, Christopher

    2013-01-01

    Current debates regarding justice in university admissions most often approach the question of access to university from a technical, policy-focussed perspective. Despite the attention that access to university receives in the press and policy literature, ethical discussion tends to focus on technical matters such as who should pay for university…

  17. Green University Initiatives in China: A Case of Tsinghua University

    ERIC Educational Resources Information Center

    Zhao, Wanxia; Zou, Yonghua

    2015-01-01

    Purpose: The purpose of this paper is to examine green university initiatives in the context of China, using Tsinghua University, which is China's green university pioneer, as a case study. Design/methodology/approach: The research method used for this paper is a case study based on participant observation and document analysis. The approach to…

  18. Research on universal combinatorial coding.

    PubMed

    Lu, Jun; Zhang, Zhuo; Mo, Juan

    2014-01-01

    The conception of universal combinatorial coding is proposed. Relations exist more or less in many coding methods. It means that a kind of universal coding method is objectively existent. It can be a bridge connecting many coding methods. Universal combinatorial coding is lossless and it is based on the combinatorics theory. The combinational and exhaustive property make it closely related with the existing code methods. Universal combinatorial coding does not depend on the probability statistic characteristic of information source, and it has the characteristics across three coding branches. It has analyzed the relationship between the universal combinatorial coding and the variety of coding method and has researched many applications technologies of this coding method. In addition, the efficiency of universal combinatorial coding is analyzed theoretically. The multicharacteristic and multiapplication of universal combinatorial coding are unique in the existing coding methods. Universal combinatorial coding has theoretical research and practical application value.

  19. Critiquing Neoliberalism in Australian Universities

    ERIC Educational Resources Information Center

    Rea, Jeannie

    2016-01-01

    While students chanting "No cuts, No fees, No corporate universities" may be dismissed as youthful hyperbole by some, it is not as superficial a characterisation of the state of our public university system as it seems.

  20. Research on universal combinatorial coding.

    PubMed

    Lu, Jun; Zhang, Zhuo; Mo, Juan

    2014-01-01

    The conception of universal combinatorial coding is proposed. Relations exist more or less in many coding methods. It means that a kind of universal coding method is objectively existent. It can be a bridge connecting many coding methods. Universal combinatorial coding is lossless and it is based on the combinatorics theory. The combinational and exhaustive property make it closely related with the existing code methods. Universal combinatorial coding does not depend on the probability statistic characteristic of information source, and it has the characteristics across three coding branches. It has analyzed the relationship between the universal combinatorial coding and the variety of coding method and has researched many applications technologies of this coding method. In addition, the efficiency of universal combinatorial coding is analyzed theoretically. The multicharacteristic and multiapplication of universal combinatorial coding are unique in the existing coding methods. Universal combinatorial coding has theoretical research and practical application value. PMID:24772019

  1. Education in a Research University

    ERIC Educational Resources Information Center

    Arrow, Kenneth J. Ed.; And Others

    This collection of 30 essays on the character, administration, and management of research universities research university emphasizes the perspective of statistics and operations research: The essays are: "A Robust Faculty Planning Model" (Frederick Biedenweg); "Looking Back at Computer Models Employed in the Stanford University Administration"…

  2. Do Universities Have "Successful" Brands?

    ERIC Educational Resources Information Center

    Chapleo, Chris

    2005-01-01

    Branding in universities is a topical issue, but arguably few UK universities have fully developed "successful" brands in the manner of commercial organizations. This qualitative paper explores the opinions of 40 opinion formers on which UK universities have successful brands and the associations these brands have. Current literature on what…

  3. A University of the Air

    ERIC Educational Resources Information Center

    Stanistreet, Paul

    2009-01-01

    The term "open university" was coined by that visionary "seedsman" of reformist ideas Michael Young in an article for a 1962 number of "Where?" magazine. He proposed an "open university" to prepare people for external degrees at London University, with three key functions: (1) to organise new and better correspondence courses for the degree; (2)…

  4. Remembering the University of Utah.

    ERIC Educational Resources Information Center

    Haglund, Elizabeth, Ed.

    Nineteen essays comprise this personal and historical look at the University of Utah and the relationship between the university, its people, and the community. Essays include: "One Cannot Live Long Enough to Outgrow a University" (Ramona Wilcox Cannon); "Ever in the Freshness of Its Youth" (G. Homer Durham); "The Final Payoff" (David W. Evans);…

  5. The Universality of Acquisitional Phonology.

    ERIC Educational Resources Information Center

    Salus, Peter H.

    This paper is concerned with the Aristotelian notion of "universal" as applied to phonological phenomena. It is claimed that speech production in children and adults, in normal and deviant speakers, and in a variety of languages, can all be described according to the same universal phonological rules which constitute the universal process of…

  6. University Relations: The HP Model

    ERIC Educational Resources Information Center

    Johnson, W. C.

    2003-01-01

    Hewlett-Packard benefited from one of the earliest examples of knowledge transfer in a strategic relationship, with the investment by Stanford University professor Frederick Terman in the work of former students Dave Packard and Bill Hewlett. Today, HP University Relations (UR) works with university partners to create similar valuable synergy. UR…

  7. Industry Investment in University Research.

    ERIC Educational Resources Information Center

    Caldart, Charles C.

    1983-01-01

    Practical, political, and ethical issues result from industry investments in university research. These issues are discussed in terms of the commercialization of university research, challenge to academic integrity (considering academic freedom and government funding), and implications for the university (considering contracts, mergers,…

  8. Widening Participation in University Learning

    ERIC Educational Resources Information Center

    Rissman, Barbara; Carrington, Suzanne; Bland, Derek

    2013-01-01

    This paper reports how one Australian university and the Queensland Department of Education and Training (DET) are working together to increase the number of school students from low socio-economic backgrounds enrolling in undergraduate university degrees. This innovative program involves university lecturers and school teachers working together…

  9. Texas A&M University

    ERIC Educational Resources Information Center

    Osters, Sandi

    2009-01-01

    Texas A&M University is a research extensive institution located in College Station. More than 45,000 students attend the university (about 20% are graduate or professional students). Academically, the university is known for its engineering, business, and agricultural and veterinary medicine programs, although there are more than 150 programs of…

  10. Flordia State University

    SciTech Connect

    Fox, J.; Frawley, A.; Myers, E.

    1995-08-01

    Argonne fabricated the niobium resonators and some auxiliary devices for the superconducting-linac energy booster built at Florida State University. Personnel from FSU came to ANL to assemble and test the resonators. The main resonator fabrication work for FSU was completed during 1986, but we continue to interact with personnel concerning ongoing refinements in the technology. Topics in which we were most recently involved are (1) a change in the method of cooling the FSU resonators and (2) the transfer of information about fast tuner upgrades. During the past year there was very little interaction.

  11. Journey Through the Universe

    NASA Astrophysics Data System (ADS)

    Harvey, J.

    2005-12-01

    Journey through the Universe held its first Journey Week January 21-28, 2005 in Hilo, Hawaii. This ambitious program uses the fi elds of space, earth science and exploration to engage communities with long-term connections to science, mathematics and technology. All content is aligned to state and national education standards. Last year, the Hawaii-based program trained 135 teachers, visited more than 120 classrooms, talked to more than 5,000 students and hosted three family science events for more than 2,500 people. In 2006 the program seeks to reach an additional 8,000 students in public, private and charter schools in North Hawaii.

  12. Optimal Universal Uncertainty Relations

    PubMed Central

    Li, Tao; Xiao, Yunlong; Ma, Teng; Fei, Shao-Ming; Jing, Naihuan; Li-Jost, Xianqing; Wang, Zhi-Xi

    2016-01-01

    We study universal uncertainty relations and present a method called joint probability distribution diagram to improve the majorization bounds constructed independently in [Phys. Rev. Lett. 111, 230401 (2013)] and [J. Phys. A. 46, 272002 (2013)]. The results give rise to state independent uncertainty relations satisfied by any nonnegative Schur-concave functions. On the other hand, a remarkable recent result of entropic uncertainty relation is the direct-sum majorization relation. In this paper, we illustrate our bounds by showing how they provide a complement to that in [Phys. Rev. A. 89, 052115 (2014)]. PMID:27775010

  13. On separate universes

    SciTech Connect

    Dai, Liang; Pajer, Enrico; Schmidt, Fabian E-mail: enrico.pajer@gmail.com

    2015-10-01

    The separate universe conjecture states that in General Relativity a density perturbation behaves locally (i.e. on scales much smaller than the wavelength of the mode) as a separate universe with different background density and curvature. We prove this conjecture for a spherical compensated tophat density perturbation of arbitrary amplitude and radius in ΛCDM. We then use Conformal Fermi Coordinates to generalize this result to scalar perturbations of arbitrary configuration and scale in a general cosmology with a mixture of fluids, but to linear order in perturbations. In this case, the separate universe conjecture holds for the isotropic part of the perturbations. The anisotropic part on the other hand is exactly captured by a tidal field in the Newtonian form. We show that the separate universe picture is restricted to scales larger than the sound horizons of all fluid components. We then derive an expression for the locally measured matter bispectrum induced by a long-wavelength mode of arbitrary wavelength, a new result which in standard perturbation theory is equivalent to a relativistic second-order calculation. We show that nonlinear gravitational dynamics does not generate observable contributions that scale like local-type non-Gaussianity f{sup loc}{sub NL}, and hence does not contribute to a scale-dependent galaxy bias Δ b ∝ k{sup −2} on large scales; rather, the locally measurable long-short mode coupling assumes a form essentially identical to subhorizon perturbation theory results, once the long-mode density perturbation is replaced by the synchronous-comoving gauge density perturbation. Apparent f{sup loc}{sub NL}-type contributions arise through projection effects on photon propagation, which depend on the specific large-scale structure tracer and observable considered, and are in principle distinguishable from the local mode coupling induced by gravity. We conclude that any observation of f{sup loc}{sub NL} beyond these projection effects

  14. VLSI Universal Noiseless Coder

    NASA Technical Reports Server (NTRS)

    Rice, Robert F.; Lee, Jun-Ji; Fang, Wai-Chi

    1989-01-01

    Proposed universal noiseless coder (UNC) compresses stream of data signals for efficient transmission in channel of limited bandwidth. Noiseless in sense original data completely recoverable from output code. System built as very-large-scale integrated (VLSI) circuit, compressing data in real time at input rates as high as 24 Mb/s, and possibly faster, depending on specific design. Approach yields small, lightweight system operating reliably and consuming little power. Constructed as single, compact, low-power VLSI circuit chip. Design of VLSI circuit chip made specific to code algorithms. Entire UNC fabricated in single chip, worst-case power dissipation less than 1 W.

  15. Mapping the Baby Universe

    NASA Technical Reports Server (NTRS)

    Wanjek, Christopher

    2003-01-01

    In June, NASA plans to launch the Microwave Anisotropy Probe (MAP) to survey the ancient radiation in unprecedented detail. MAP will map slight temperature fluctuations within the microwave background that vary by only 0.00001 C across a chilly radiation that now averages 2.73 C above absolute zero. The temperature differences today point back to density differences in the fiery baby universe, in which there was a little more matter here and a little less matter there. Areas of slightly enhanced density had stronger gravity than low-density areas. The high-density areas pulled back on the background radiation, making it appear slightly cooler in those directions.

  16. Physics in our Universe

    NASA Astrophysics Data System (ADS)

    Conn Henry, Richard

    2016-06-01

    The recent detection of gravitational waves from the merger of two massive black holes means that we must now take Newton's approach to the Universe even more seriously than we have taken it since Principia: General Relativity has now been tested, as never before, and GR has passed with flying colors! In my poster I try to summarize all of fundamental physics taken together --- gravitation, dark energy, and particles. But the whole job is not yet done: mass + energy remains as a final frontier. It may be that the topology of 4-space is the answer: how I wish I were a mathematical topologist of great ability!

  17. Alone in the Universe

    NASA Astrophysics Data System (ADS)

    Smith, Howard

    Recent measurements of over 1056 confirmed exoplanets reveal details about their masses, compositions, orbital parameters, possible evolutionary histories, and even their atmospheres. These results, though marking just the beginnings of a dramatic new period of exoplanet discovery, suggest that for all practical purposes we are alone in the universe, at least in the sense implied by SETI: extraterrestrial intelligence. This talk will summarize the evidence to date, offer conclusions about the critical importance of increased exoplanet research, and emphasize the need for a renewed appreciation of the rare value of the Earth, its fragile environment, and its inhabitants.

  18. Universal signal conditioning amplifier

    NASA Technical Reports Server (NTRS)

    Larson, William E.; Hallberg, Carl; Medelius, Pedro J.

    1994-01-01

    Engineers at NASA's Kennedy Space Center have designed a signal conditioning amplifier which automatically matches itself to almost any kind of transducer. The product, called Universal Signal Conditioning Amplifier (USCA), uses state-of-the-art technologies to deliver high accuracy measurements. USCA's features which can be either programmable or automated include: voltage, current, or pulsed excitation, unlimited resolution gain, digital filtering and both analog and digital output. USCA will be used at Kennedy Space Center's launch pads for environmental measurements such as vibrations, strains, temperatures and overpressures. USCA is presently being commercialized through a co-funded agreement between NASA, the State of Florida, and Loral Test and Information Systems, Inc.

  19. Drexel University Temperature Sensors

    SciTech Connect

    K. L. Davis; D. L. Knudson; J. L. Rempe; B. M. Chase

    2014-09-01

    This document summarizes background information and presents results related to temperature measurements in the Advanced Test Reactor (ATR) National Scientific User Facility (NSUF) Drexel University Project 31091 irradiation. The objective of this test was to assess the radiation performance of new ceramic materials for advanced reactor applications. Accordingly, irradiations of transition metal carbides and nitrides were performed using the Hydraulic Shuttle Irradiation System (HSIS) in the B-7 position and in static capsules inserted into the A-3 and East Flux Trap Position 5 locations of the ATR.

  20. The first competency-based higher education programme for midwives in the South Asian region--Pakistan.

    PubMed

    Jan, Rafat; Lakhani, Arusa; Kaufman, Karyn; Karimi, Sadia

    2016-02-01

    Midwives in Pakistan and the South Asian region who complete a diploma program face many challenges for career growth and development. The absence of higher education in professional midwifery in the region has contributed to general non-acceptance and invisibility of midwifery. In response to the interest, Aga Khan University (AKU) developed bachelors program in midwifery based on the Global Standards for Midwifery Education developed by the International Confederation of Midwives (ICM) with the vision to equip midwives to provide full-scope practice, develop confidence to practice midwifery independently, become clinical leaders and contribute to the future of midwifery. The final curriculum had a balance of theory and clinical practice in order to develop a high level of clinical competence that would meet the ICM standards and guidelines. The two year bachelors program is currently in progress. The first cohort of 21 midwives graduated in 2014 and a second cohort was enrolled in 2015. There is a planning for a future graduate program in midwifery to prepare individuals for leadership roles in practice, teaching, maternal-child health provision and policy making through a master's degree in midwifery. PMID:26775558

  1. Comparison of microcoils and polyvinyl alcohol particles in selective microcatheter angioembolization of non variceal acute gastrointestinal hemorrhage

    PubMed Central

    Tanveer-Ul-Haq; Idris, Muhammad; Salam, Basit; Akhtar, Waseem; Jamil, Yasir

    2015-01-01

    Objectives: To compare the efficacy of polyvinyl alcohol (PVA) particles with microcoils in angiembolisation of non variceal acute gastrointestinal haemorrhage. Methods: This is a retrospective cross-sectional study of patients who underwent transcatheter angioembolization from January, 1995 to December, 2013 at Aga Khan University Hospital, Karachi. Patients were divided into two groups on basis of use of either microcoils or PVA particles and compared in terms of technical success, clinical success, re-bleeding and ischemic complication rates. Chi (χ2) square and Fisher’s exact tests were applied and a P-value of less than 0.05 was considered statistically significant. Results: Fifty seven patients underwent angioembolization. Microcoil and PVA particles embolization was performed in 63% (36/57) and 35% (20/57) cases respectively. Technical success was achieved in all cases (100%). Clinical success rate was higher in microcoils group (92%) than PVA particles group (75%) with statistically significant P value (p=0.048). Ischemic complication was seen in one case (3%) in the microcoil group, while no such complications were seen in the PVA particles group. Conclusion: In angioembolization of non variceal acute gastrointestinal haemorrhage microcoils are better than Polyvinyl alcohol particles with higher clinical success and lower re-bleed rates. PMID:26430397

  2. Prevalence of Acanthamoeba and superbugs in a clinical setting: coincidence or hyperparasitism?

    PubMed

    Siddiqui, Ruqaiyyah; Sagheer, Mehwish; Khan, Naveed Ahmed

    2013-03-01

    Antibacterial strategies to eradicate superbugs from hospitals/nursing homes have had limited success, suggesting the need for employing innovative preventative measures and better understanding of the prevalence of microbial pathogens in close proximity of susceptible populations. A total of 120 environmental samples were collected from the Aga Khan University hospital. Amoebae were identified using morphological characteristics as well as PCR using genus-specific primers, while bacteria were identified using standard biochemical testing. Out of 120 samples tested, 52 (43.3 %) samples were positive for Acanthamoeba, while all 120 (100 %) samples were positive for bacteria. Following bacterial identification, samples showed mixed bacterial populations. Out of 120 samples, 76 (63.3 %) samples were positive for Bacillus spp., 64 (53.3 %) samples were positive for Corynebacterium spp., 32 (26.6 %) samples were positive for Staphylococcus spp., and 9 (7.5 %) samples were positive for Micrococcus spp. The antibiotic susceptibility showed that all bacterial isolates recovered were multiple drug-resistant. The current findings suggest that Acanthamoeba and bacteria coexist in a clinical environment. Given that Acanthamoeba can harbor bacteria, anti-amoebic approaches may represent a strategy in eradicating "superbugs" from the clinical setting in addition to the current measures.

  3. Stretching the boundaries of medical education A case of medical college embracing humanities and social sciences in medical education

    PubMed Central

    Ghias, Kulsoom; Khan, Kausar S; Ali, Rukhsana; Azfar, Shireen; Ahmed, Rashida

    2016-01-01

    Objective: Aga Khan University, a private medical college, had a vision of producing physicians who are not only scientifically competent, but also socially sensitive, the latter by exposure of medical students to a broad-based curriculum. The objective of this study was to identify the genesis of broad-based education and its integration into the undergraduate medical education program as the Humanities and Social Sciences (HASS) course. Methods: A qualitative methodology was used for this study. Sources of data included document review and in-depth key informant interviews. Nvivo software was utilized to extract themes. Results: The study revealed the process of operationalization of the institutional vision to produce competent and culturally sensitive physicians. The delay in the establishment of the Faculty of Arts and Sciences, which was expected to take a lead role in the delivery of a broad-based education, led to the development of an innovative HASS course in the medical curriculum. The study also identified availability of faculty and resistance from students as challenges faced in the implementation and evolution of HASS. Conclusions: The description of the journey and viability of integration of HASS into the medical curriculum offers a model to medical colleges seeking ways to produce socially sensitive physicians.

  4. Stretching the boundaries of medical education A case of medical college embracing humanities and social sciences in medical education

    PubMed Central

    Ghias, Kulsoom; Khan, Kausar S; Ali, Rukhsana; Azfar, Shireen; Ahmed, Rashida

    2016-01-01

    Objective: Aga Khan University, a private medical college, had a vision of producing physicians who are not only scientifically competent, but also socially sensitive, the latter by exposure of medical students to a broad-based curriculum. The objective of this study was to identify the genesis of broad-based education and its integration into the undergraduate medical education program as the Humanities and Social Sciences (HASS) course. Methods: A qualitative methodology was used for this study. Sources of data included document review and in-depth key informant interviews. Nvivo software was utilized to extract themes. Results: The study revealed the process of operationalization of the institutional vision to produce competent and culturally sensitive physicians. The delay in the establishment of the Faculty of Arts and Sciences, which was expected to take a lead role in the delivery of a broad-based education, led to the development of an innovative HASS course in the medical curriculum. The study also identified availability of faculty and resistance from students as challenges faced in the implementation and evolution of HASS. Conclusions: The description of the journey and viability of integration of HASS into the medical curriculum offers a model to medical colleges seeking ways to produce socially sensitive physicians. PMID:27648038

  5. Crimean-Congo hemorrhagic fever nosocomial infection in a immunosuppressed patient, Pakistan: case report and virological investigation.

    PubMed

    Hasan, Zahra; Mahmood, Faisal; Jamil, Bushra; Atkinson, Barry; Mohammed, Murtaza; Samreen, Azra; Altaf, Lamia; Moatter, Tariq; Hewson, Roger

    2013-03-01

    Crimean-Congo hemorrhagic fever (CCHF) is endemic in the Baluchistan province, Pakistan. Sporadic outbreaks of CCHF occur throughout the year especially in individuals in contact with infected livestock. Nosocomial transmission remains a risk due to difficulties in the diagnosis of CCHF and limited availability of facilities for the isolation of suspected patients. Rapid diagnosis of CCHF virus infection is required for early management of the disease and to prevent transmission. This study describes the case of a 43-year-old surgeon who contracted CCHF during a surgical procedure in Quetta, Baluchistan and who was transferred to a tertiary care facility at the Aga Khan University Hospital, Karachi within 1 week of contracting the infection. Diagnosis of CCHF was made using a rapid real-time reverse transcription polymerase chain reaction (RT-PCR) assay for CCHF viral RNA. The patient had chronic hepatitis B and hepatitis D infection for which he had previously received a liver transplant. He proceeded to develop classic hemorrhagic manifestations and succumbed to the infection 14 days post-onset of disease. There was no further nosocomial transmission of the CCHF during the hospital treatment of the surgeon. Early diagnosis of CCHF enables rapid engagement of appropriate isolation, barrier nursing and infection control measures thus preventing nosocomial transmission of the virus.

  6. Prevalence of Depression and Anxiety amongst Cancer Patients in a Hospital Setting: A Cross-Sectional Study

    PubMed Central

    Faheem, Muhammad; Fahim, Ammad; Innocent, Haran; Mansoor, Zainab; Rizvi, Shehrbano; Farrukh, Hizra

    2016-01-01

    Background. The biomedical care for cancer has not been complemented by psychosocial progressions in cancer care. Objectives. To find the prevalence of anxiety and depression amongst cancer patients in a hospital setting. Design and Setting. This cross-sectional study was conducted at the tertiary care hospitals Shifa International Hospital Islamabad and Nuclear Medicine, Oncology, and Radiotherapy Institute [NORI]. Patients and Methods. 300 patients were interviewed from both the outpatient and inpatient department using The Aga Khan University Anxiety and Depression Scale (AKUADS). Main Outcome Measures. Using a score of 20 and above on the AKUADS, 146 (48.7%) patients were suffering from anxiety and depression. Results. When cross tabulation was done between different factors and the cancer patients with anxiety and depression, the following factors were found out to be significant with associated p value < 0.05: education of the patient, presence of cancer in the family, the severity of pain, and the patient's awareness of his anxiety and depression. Out of 143 (47.7%) uneducated patients, 85 (59.4%) were depressed, hence making it the highest educational category suffering from depression and anxiety. Conclusion. The prevalence of anxiety and depression amongst cancer patients was high showing that importance should be given to screening and counseling cancer patients for anxiety and depression, to help them cope with cancer as a disease and its impact on their mental wellbeing. Limitations. The frequency of female patients in our research was higher than those of male patients. PMID:27752508

  7. Species identification of invasive yeasts including Candida in Pakistan: limitations of phenotypic methods

    PubMed Central

    Farooqi, Joveria; Jabeen, Kauser; Saeed, Noureen; Zafar, Afia; Brandt, Mary Eleanor; Hasan, Rumina

    2015-01-01

    Objective To compare phenotypic and genotypic methods of yeast identification. Methods The in-vitro cross-sectional study was conducted from January 2006 to May 2009. Invasive yeasts isolated at the clinical microbiology laboratory at the Aga Khan University (AKU), Karachi, Pakistan, were identified. Speciation by phenotypic and molecular methods was compared. All yeasts isolated during the study period from blood and other invasive sites were identified using standard methods. Isolates were shipped to Mycotic Diseases Branch, Centres for Disease Control and Prevention, Atlanta, Georgia, USA, for identification by Luminex flow cytometric multianalyte profiling (xMAP) system. Ribosomal ITS2 DNA sequencing was performed on isolates not identified by Luminex. Result Of the 214 invasive yeasts evaluated, Candida species were 209 (97.7%) while the frequency of non-Candida species was 5 (2.3%). Overall agreement between phenotypic and molecular identification was 81.3%, 90.3% amongst the more common Candida species, and only 38.8% amongst the uncommon yeasts. Conclusion Phenotypic methods of identification proved adequate for common Candida species, but were deficient in recognising rare Candida and non-Candida yeasts, highlighting the importance of molecular methods for identification. PMID:23866432

  8. The first competency-based higher education programme for midwives in the South Asian region--Pakistan.

    PubMed

    Jan, Rafat; Lakhani, Arusa; Kaufman, Karyn; Karimi, Sadia

    2016-02-01

    Midwives in Pakistan and the South Asian region who complete a diploma program face many challenges for career growth and development. The absence of higher education in professional midwifery in the region has contributed to general non-acceptance and invisibility of midwifery. In response to the interest, Aga Khan University (AKU) developed bachelors program in midwifery based on the Global Standards for Midwifery Education developed by the International Confederation of Midwives (ICM) with the vision to equip midwives to provide full-scope practice, develop confidence to practice midwifery independently, become clinical leaders and contribute to the future of midwifery. The final curriculum had a balance of theory and clinical practice in order to develop a high level of clinical competence that would meet the ICM standards and guidelines. The two year bachelors program is currently in progress. The first cohort of 21 midwives graduated in 2014 and a second cohort was enrolled in 2015. There is a planning for a future graduate program in midwifery to prepare individuals for leadership roles in practice, teaching, maternal-child health provision and policy making through a master's degree in midwifery.

  9. Peripartum cardiomyopathy: ten year experience at a tertiary care hospital in Pakistan

    PubMed Central

    2013-01-01

    Background There is very little literature regarding peripartum cardiomyopathy from the Asian countries. We conducted this study to determine demographic details, clinical presentations, complications and recovery of left ventricular (LV) systolic function in peripartum cardiomyopathy (PPCMP) patients of Pakistani origin. Method A ten year retrospective case series of PPCMP was conducted at the Aga Khan University Hospital. Patients were also followed up for six months after presentation, with special regard to improvement in the LV function. Results Total 45 patients were included, 25 (55.5%) primigravida and 8 (17.7%) gravida 2 and the remaining 12 (26.6%) were multigravida. Fourteen patients (31.1%) presented during pregnancy and 31 (68.8%) after delivery. All patients presented with CHF and three (6.6%) were complicated with ventricular tachycardia (VT) at presentation. LV systolic dysfunction was present in 39 (86.66%) patients and RV dysfunction in 15 (33.3%) patients. Two patients had LV clot and thromboembolic stroke occurred in another 4 patients. All patients received standard treatment except three patients who had asthma and could not be given beta blockers. Echocardiogram was repeated after 6 month and in 32 (71.1%) patients LV functions recovered to normal. RV function improved in all except 2 (4.4%) patients. All patients were discharged in stable condition. Conclusion Significant numbers of PPCMP patients, who had severe LV dysfunction at presentation recovered their LV functions at six month follow up. PMID:24289218

  10. SU-E-J-81: Adaptive Radiotherapy for IMRT Head & Neck Patient in AKUH

    SciTech Connect

    Yousuf, A; Qureshi, B; Qadir, A; Abbasi, N; Hussain, A

    2015-06-15

    Purpose: In this study we proposed Adaptive radiotherapy for IMRT patients which will brought an additional dimension to the management of patients with H&N cancer in Aga Khan University Hospital. Methods: In this study 5 Head and Neck (H&N) patients plan where selected, who’s Re-CT were done during the course of their treatment, they were simulated with IMRT technique to learn the consequence of anatomical changes that may occur during the treatment, as they are more dramatic changes can occur as compare to conventional treatment. All the organ at risk were drawn according RTOG guidelines and doses were checked as per NCCN guidelines. Results: The reduction in size of Planning target volume (PTV) is more than 20% in all the cases which leads to 3 to 5 % overdose to normal tissues and Organ at Risk. Conclusion: Through this study we would like to emphasis the importance of Adaptive Radiotherapy practice in all IMRT (H&N) patients, although prospective studies are required with larger sample sizes to address the safety and the clinical effect of such approaches on patient outcome, also one need to develop protocols before implementation of this technique in practice.

  11. A randomized control clinical trial of fissure sealant retention: Self etch adhesive versus total etch adhesive

    PubMed Central

    Aman, Nadia; Khan, Farhan Reza; Salim, Aisha; Farid, Huma

    2015-01-01

    Context: There are limited studies on comparison of Total etch (TE) and Self etch (SE) adhesive for placement of sealants. Aims: The aim of the study was to compare the retention of fissure sealants placed using TE adhesive to those sealants placed using SE (seventh generation) adhesive. Settings and Design: The study was conducted in the dental section, Aga Khan University Hospital. This study was a randomized single blinded trial with a split mouth design. Materials and Methods: The study included 37 patients, 101 teeth were included in both study groups. The intervention arm was treated with SE Adhesive (Adper Easy One, 3M ESPE, US). Control arm received TE adhesive (Adper Single Bond 2, 3M ESPE, US) before sealant application. The patients were followed after 6 months for assessment of sealant retention. Statistical analysis used: Interexaminer agreement for outcome assessment was assessed by Kappa Statistics and outcome in intervention group was assessed by McNemar's test. Results: Ninety-one pairs of molar (90%) were reevaluated for sealant retention. Complete retention was 56% in TE arm and 28% in SE arm with an odds ratio (OR) of 3.7. Conclusions: Sealants applied with TE adhesives show higher rate of complete sealant retention than SE adhesive. PMID:25657521

  12. Olfactory neuroblastoma: A clinicopathological experience of a rare entity from Pakistan

    PubMed Central

    Haroon, Saroona; Tariq, Muhammad Usman; Memon, Aisha; Fatima, Saira; Hasan, Sheema Habibul

    2016-01-01

    Objectives: To present the clinicopathological experience of Olfactory Neuroblastoma (ONB) with emphasis on histopathological and immunohistochemical features. Methods: A descriptive cross-sectional study was done on 36 cases of ONB, selected by non-probability purposive sampling. Theses cases of ONB were retrieved and reviewed from surgical pathology database of Aga Khan University Hospital reported between January 1993 and March 2015. Results: Tumor size and age of presentation was wide in range without any distinct bimodal distribution. Nasal cavity was most common site along with involvement of paranasal sinuses. More than 50% cases had Kadish stage A. Microscopically, most cases were Grade-1 and majority showed partial or complete lobular architecture. Neurofibrillary matrix was observed in 2/3rd of cases. Among immunohistochemical markers, Neuron Specific Enolase was most frequently expressed. Unusual positive expression of Cytokeratin AE1/AE3 and Cytokeratin CAM5.2 was also seen focally in few cases. Conclusion: The ONB has great variability of histological and clinical presentation, and immunohistochemical markers are useful to differentiate from more common small round blue cell tumours of nasal cavity. PMID:27375694

  13. New Onset Refractory Status Epilepticus as an Unusual Presentation of a Suspected Organophosphate Poisoning

    PubMed Central

    Waheed, Shahan; Sabeen, Amber; Ullah Khan, Nadeem

    2014-01-01

    New onset refractory status epilepticus (NORSE) is a new entity in medical literature. It has different infectious and noninfectious etiologies showing a devastating impact onto the clinical outcome of patients. Therapy with anaesthetic and antiepileptic agents often fails to improve the condition, unless the primary cause is rectified. Here is presented the case of a young female with a history of depression who after a recent bereavement came to the Emergency Department of Aga Khan University Hospital with complaints of drowsiness that lasted for few hours. Though she had no history of organophosphate poisoning, her physical examination and further investigations were suggestive of the diagnosis. During her hospital stay, she developed refractory status epilepticus. Her seizures did not respond to standard antiepileptic and intravenous anesthetic agents and subsided only after intravenous infusion of atropine for a few days. Organophosphate poisoning is a very common presentation in the developing world and the associated status epilepticus poses a devastating problem for emergency physicians. In patients with suspected organophosphate poisoning with favoring clinical exam findings, the continuation of atropine intravenous infusion can be a safe option to abate seizures. PMID:25580311

  14. Omitting histopathology in wrist ganglions. A risky proposition

    PubMed Central

    Zubairi, Akbar J.; Kumar, Santosh; Mohib, Yasir; Rashid, Rizwan H.; Noordin, Shahryar

    2016-01-01

    Objectives: To identify incidence and utility of histopathology in wrist ganglions. Methods: A retrospective study of 112 patients operated for wrist swellings between January 2009 and March 2014 at Aga Khan University Hospital, Karachi, Pakistan, was conducted. Medical records were reviewed for demographics, history, location and associated symptoms, provisional diagnosis and operative details. Histopathology reports were reviewed to confirm the final diagnosis. Results: One hundred and twelve patients were included in the study (34 males and 78 females) with a mean age of 28 ± 12 years. Ninety-five percent of ganglia were dorsally located and 85% were solitary in nature. Histopathology reports confirmed 107 as ganglion cysts, whereas 3 had giant cell tumor of tendon sheath and 2 were reported to be tuberculous tenosynovitis. Conclusion: Although most of the time, the clinical diagnosis conforms to the final diagnosis, the possibility of an alternate diagnosis cannot be ignored (4% in this study). We suggest routine histopathological analysis so that such diagnoses are not missed. PMID:27464871

  15. Haemorrhagic manifestations and utility of haematological parameters in dengue fever: a tertiary care centre experience at Karachi.

    PubMed

    Ali, Natasha; Usman, Mohammad; Syed, Naveen; Khurshid, Mohammad

    2007-01-01

    A retrospective observational study of dengue fever was performed, including 210 patients (male:female ratio 1.6:1, ages 6-74 y, mean 29.7 y) attending the Aga Khan University Hospital, Karachi from January 2001 to December 2006. All included patients proved dengue IgM antibody positive. Of these, 19 (9%) showed increased haemoglobin/haematocrit levels on admission which remained elevated in 4 (2.1%) at the time of discharge. 56 patients (26.6%) had leucopenia and neutropenia and 77.1% (161) had thrombocytopenia at the time of admission; 2.5% (5) and 16.7% (35) had deranged PT and APTT, respectively. Atypical lymphocytes were seen in 109 patients (52%). Platelet transfusion was given in 45 (22.1%) cases. The majority of patients were discharged without any adverse sequelae. The fatality rate was 3.3% (n=7) and these patients died of dengue shock syndrome, while 196 (93.3%) recovered completely. Haematological parameters are an important clue and should be tested when a patient presents with symptoms suggestive of dengue fever.

  16. An epidemic of Dengue fever in Karachi--associated clinical manifestations.

    PubMed

    Qureshi, J A; Notta, N J; Salahuddin, N; Zaman, V; Khan, J A

    1997-07-01

    Dengue is a mosquito borne disease with worldwide distribution. Depending on virulence factors and host immune status, infection can manifest as a severe but non fatal viral syndrome or a rapidly progressive and a frequently fatal haemorrhagic fever. During the course of an outbreak of viral fever in Karachi, Pakistan from June, 1994 to September, 1995, we studied 145 cases admitted at the Aga Khan University Hospital. 43% of the cases were between the age group of 20-30 years, majority of these being male (75%). Amongst the clinical signs and symptoms, the most frequent findings were fever, vomiting and abdominal pain. Spontaneous hemorrhagic manifestations occurred in 66 patients and of these petechiae and mucosal bleed were the commonest, that is, 42% and 38% respectively. At presentation thrombocytopenia (platelet count < or = 50,000) per cubic millimeter) was present in 78%, leucopenia (white cell count < 4,000 per cubic millimeter) in 34%. Apart from one patient who died from hemorrhagic shock on the 5th day of admission, the remaining patients recovered and their platelet counts normalized on an average in 9 days. This is the first reported epidemic in Karachi of dengue infection.

  17. Association of airborne Aspergillus with asthma exacerbation in Southern Pakistan

    PubMed Central

    Zubairi, Ali Bin Sarwar; Azam, Iqbal; Awan, Safia; Zafar, Afia

    2014-01-01

    Background Exposure to airborne fungi has been related with exacerbation of asthma in adults and children leading to increased outpatient, emergency room visits, and hospitalizations. Hypersensitivity to these airborne fungi may be an important initial predisposing factor in the development and exacerbation of asthma. Objective This study was conducted to determine an association between fungal types and spore concentrations with the risk of asthma exacerbation in adults. Methods This cross-sectional study was conducted from May 2008 to August 2009 at the Aga Khan University Hospital Karachi, Pakistan. All adult (age≥16 years) patients presenting to the hospital with acute asthma exacerbation were enrolled after informed consent. A home survey was conducted for each patient to assess their environmental characteristics. Indoor air samples were also obtained from the patient's home to determine the type and spore concentration of fungi within the week of their enrollment in the study. Results Three hundred and ninety-one patients with an acute asthma exacerbation were enrolled during the study period. The mean age of participants was 46 years (standard deviation, ±18 years) and 247 (63.2%) were females. A trend of higher asthma enrollment associated with higher Aspergillus concentrations was found in two consecutive summers. A total of nineteen types of fungi were found in air samples. Aspergillus spp. was the most frequently isolated fungus with acute asthma exacerbation. Conclusion An association of higher concentration of indoor Aspergillus spp. with asthma exacerbation in adults was observed in this study. PMID:24809014

  18. Risk factors predisposing to congenital heart defects

    PubMed Central

    Ul Haq, Faheem; Jalil, Fatima; Hashmi, Saman; Jumani, Maliha Iqbal; Imdad, Aamer; Jabeen, Mehnaz; Hashmi, Javad Tauseef; Irfan, Furqan Bin; Imran, Muhammad; Atiq, Mehnaz

    2011-01-01

    Introduction: Congenital heart disease (CHD) is associated with multiple risk factors, consanguinity may be one such significant factor. The role of consanguinity in the etiology of CHD is supported by inbreeding studies, which demonstrate an autosomal recessive pattern of inheritance of some congenital heart defects. This study was done to find out the risk factors for CHD. Methods: A case-control study was done on pediatric patients at a tertiary care hospital, Aga Khan University Hospital, located in Karachi, Pakistan. A total of 500 patients, 250 cases and 250 controls were included in the study. Results: Amongst the 250 cases (i.e. those diagnosed with CHD), 122 patients (48.8%) were born of consanguineous marriages while in the controls (i.e. non-CHD) only 72 patients (28.9%) showed a consanguinity amongst parents. On multivariate analysis, consanguinity emerged as an independent risk factor for CHD; adjusted odds ratio 2.59 (95% C. I. 1.73 - 3.87). Other risk factors included low birth weight, maternal co-morbidities, family history of CHD and first born child. On the other hand, medications used by the mother during the index pregnancy, maternal age and gender of the child did not significantly increase the risk of developing CHD. Conclusions: Analyses of our results show that parental consanguinity, family history of CHD, maternal co-morbidities, first born child and low birth weight are independent risk factors for CHD. PMID:21976868

  19. Hypertensive Crisis, Burden, Management, and Outcome at a Tertiary Care Center in Karachi.

    PubMed

    Almas, Aysha; Ghouse, Ayaz; Iftikhar, Ahmed Raza; Khursheed, Munawwar

    2014-01-01

    Objectives. Hypertension, if uncontrolled, can lead to hypertensive crisis. We aim to determine the prevalence of hypertensive crisis, its management, and outcome in patients presenting to a tertiary care center in Karachi. Methods. This was a cross-sectional study conducted at the Aga Khan University, Karachi, Pakistan. Adult inpatients (>18 yrs) presenting to the ER who were known hypertensive and had uncontrolled hypertension were included. Results. Out of 1336 patients, 28.6% (387) had uncontrolled hypertension. The prevalence of hypertensive crisis among uncontrolled hypertensive was 56.3% (218). Per oral calcium channel blocker; 35.4% (137) and intravenous nitrate; 22.7% (88) were the most commonly administered medication in the ER. The mean (SD) drop in SBP in patients with hypertensive crisis on intravenous treatment was 53.1 (29) mm Hg and on per oral treatment was 43 (27) mm Hg. The maximum mean (SD) drop in blood pressure was seen by intravenous sodium nitroprusside; 80 (51) mm Hg in SBP. Acute renal failure was the most common complication with a prevalence of 11.5% (24). Conclusion. The prevalence of hypertensive crisis is high. Per oral calcium channel blocker and intravenous nitrate are the most commonly administered medications in our setup.

  20. Attitudes of nursing staff towards computerisation: a case of two hospitals in Nairobi, Kenya

    PubMed Central

    2014-01-01

    Background The health sector is faced with constant changes as new approaches to tackle illnesses are unveiled through research. Information, communication and technology have greatly transformed healthcare practice the world over. Nursing is continually exposed to a variety of changes. Variables including age, educational level, years worked in nursing, computer knowledge and experience have been found to influence the attitudes of nurses towards computerisation. The purpose of the study was to determine the attitudes of nurses towards the use of computers and the factors that influence these attitudes. Methods This cross sectional descriptive study was conducted among staff nurses working at one public hospital (Kenyatta National Hospital, (KNH) and one private hospital (Aga Khan University Hospital (AKUH). A convenience sample of 200 nurses filled the questionnaires. Data was collected using the modified Nurses’ Attitudes Towards Computerisation (NATC) questionnaire. Results Nurses had a favorable attitude towards computerisation. Non-users had a significantly higher attitude score compared to the users (p = 0.0274). Statistically significant associations were observed with age (p = 0.039), level of education (p = 0.025), duration of exposure to computers (p = 0.025) and attitudes towards computerisation. Conclusion Generally, nurses have positive attitudes towards computerisation. This information is important for the planning and implementation of computerisation in the hospital as suggested in other studies. PMID:24774008

  1. Hydrogen Research at Florida Universities

    NASA Technical Reports Server (NTRS)

    Block, David L.; T-Raissi, Ali

    2009-01-01

    This final report describes the R&D activities and projects conducted for NASA under the 6-year NASA Hydrogen Research at Florida Universities grant program. Contained within this report are summaries of the overall activities, one-page description of all the reports funded under this program and all of the individual reports from each of the 29 projects supported by the effort. The R&D activities cover hydrogen technologies related to production, cryogenics, sensors, storage, separation processes, fuel cells, resource assessments and education. In the span of 6 years, the NASA Hydrogen Research at Florida Universities program funded a total of 44 individual university projects, and employed more than 100 faculty and over 100 graduate research students in the six participating universities. Researchers involved in this program have filed more than 20 patents in all hydrogen technology areas and put out over 220 technical publications in the last 2 years alone. This 6 year hydrogen research program was conducted by a consortium of six Florida universities: Florida International University (FIU) in Miami, Florida State University (FSU) and Florida A&M University (FAMU) in Tallahassee, University of Central Florida (UCF) in Orlando, University of South Florida (USF) in Tampa, and University of Florida (UF) in Gainesville. The Florida Solar Energy Center (FSEC) of the University of Central Florida managed the research activities of all consortium member universities except those at the University of Florida. This report does not include any of the programs or activities conducted at the University of Florida, but can be found in NASA/CR-2008-215440-PART 1-3.

  2. Universal Payload Information Management

    NASA Technical Reports Server (NTRS)

    Elmore, Ralph B.

    2003-01-01

    As the overall manager and integrator of International Space Station (ISS) science payloads, the Payload Operations Integration Center (POIC) at Marshall Space Flight Center has a critical need to provide an information management system for exchange and control of ISS payload files as well as to coordinate ISS payload related operational changes. The POIC's information management system has a fundamental requirement to provide secure operational access not only to users physically located at the POIC, but also to remote experimenters and International Partners physically located in different parts of the world. The Payload Information Management System (PIMS) is a ground-based electronic document configuration management and collaborative workflow system that was built to service the POIC's information management needs. This paper discusses the application components that comprise the PIMS system, the challenges that influenced its design and architecture, and the selected technologies it employs. This paper will also touch on the advantages of the architecture, details of the user interface, and lessons learned along the way to a successful deployment. With PIMS, a sophisticated software solution has been built that is not only universally accessible for POIC customer s information management needs, but also universally adaptable in implementation and application as a generalized information management system.

  3. Universality of fragment shapes

    PubMed Central

    Domokos, Gábor; Kun, Ferenc; Sipos, András Árpád; Szabó, Tímea

    2015-01-01

    The shape of fragments generated by the breakup of solids is central to a wide variety of problems ranging from the geomorphic evolution of boulders to the accumulation of space debris orbiting Earth. Although the statistics of the mass of fragments has been found to show a universal scaling behavior, the comprehensive characterization of fragment shapes still remained a fundamental challenge. We performed a thorough experimental study of the problem fragmenting various types of materials by slowly proceeding weathering and by rapid breakup due to explosion and hammering. We demonstrate that the shape of fragments obeys an astonishing universality having the same generic evolution with the fragment size irrespective of materials details and loading conditions. There exists a cutoff size below which fragments have an isotropic shape, however, as the size increases an exponential convergence is obtained to a unique elongated form. We show that a discrete stochastic model of fragmentation reproduces both the size and shape of fragments tuning only a single parameter which strengthens the general validity of the scaling laws. The dependence of the probability of the crack plan orientation on the linear extension of fragments proved to be essential for the shape selection mechanism. PMID:25772300

  4. Carbon in the Universe

    NASA Technical Reports Server (NTRS)

    Allamandola, Louis J.

    2013-01-01

    Over the past few decades, NASA missions have revealed that we live in a Universe that is not a hydrogen-dominated, physicist's paradise, but in a molecular Universe with complex molecules directly interwoven into its fabric. These missions have shown that molecules are an abundant and important component of astronomical objects at all stages of their evolution and that they play a key role in many processes that dominate the structure and evolution of galaxies. Closer to home in our galaxy, the Milky Way, they have revealed a unique and complex organic inventory of regions of star and planet formation that may well represent some of the prebiotic roots to life. Astrobiology emerges from the great interest in understanding astrochemical evolution from simple to complex molecules, especially those with biogenic potential and the roles they may play as primordial seeds in the origin of life on habitable worlds. The first part of this talk will highlight how infrared spectroscopic studies of interstellar space, combined with dedicated laboratory simulations, have revealed the widespread presence of complex organics across deep space. The remainder of the presentation will focus on the evolution of these materials and astrobiology.

  5. Universality of fragment shapes.

    PubMed

    Domokos, Gábor; Kun, Ferenc; Sipos, András Árpád; Szabó, Tímea

    2015-01-01

    The shape of fragments generated by the breakup of solids is central to a wide variety of problems ranging from the geomorphic evolution of boulders to the accumulation of space debris orbiting Earth. Although the statistics of the mass of fragments has been found to show a universal scaling behavior, the comprehensive characterization of fragment shapes still remained a fundamental challenge. We performed a thorough experimental study of the problem fragmenting various types of materials by slowly proceeding weathering and by rapid breakup due to explosion and hammering. We demonstrate that the shape of fragments obeys an astonishing universality having the same generic evolution with the fragment size irrespective of materials details and loading conditions. There exists a cutoff size below which fragments have an isotropic shape, however, as the size increases an exponential convergence is obtained to a unique elongated form. We show that a discrete stochastic model of fragmentation reproduces both the size and shape of fragments tuning only a single parameter which strengthens the general validity of the scaling laws. The dependence of the probability of the crack plan orientation on the linear extension of fragments proved to be essential for the shape selection mechanism. PMID:25772300

  6. Is the Universe transparent?

    NASA Astrophysics Data System (ADS)

    Liao, Kai; Avgoustidis, A.; Li, Zhengxiang

    2015-12-01

    We present our study on cosmic opacity, which relates to changes in photon number as photons travel from the source to the observer. Cosmic opacity may be caused by absorption or scattering due to matter in the Universe, or by extragalactic magnetic fields that can turn photons into unobserved particles (e.g., light axions, chameleons, gravitons, Kaluza-Klein modes), and it is crucial to correctly interpret astronomical photometric measurements like type Ia supernovae observations. On the other hand, the expansion rate at different epochs, i.e., the observational Hubble parameter data H (z ), are obtained from differential ageing of passively evolving galaxies or from baryon acoustic oscillations and thus are not affected by cosmic opacity. In this work, we first construct opacity-free luminosity distances from H (z ) determinations, taking into consideration correlations between different redshifts for our error analysis. Moreover, we let the light-curve fitting parameters, accounting for distance estimation in type Ia supernovae observations, free to ensure that our analysis is authentically cosmological-model independent and gives a robust result. Any nonzero residuals between these two kinds of luminosity distances can be deemed as an indication of the existence of cosmic opacity. While a transparent Universe is currently consistent with the data, our results show that strong constraints on opacity (and consequently on physical mechanisms that could cause it) can be obtained in a cosmological-model-independent fashion.

  7. Wikipedia ranking of world universities

    NASA Astrophysics Data System (ADS)

    Lages, José; Patt, Antoine; Shepelyansky, Dima L.

    2016-03-01

    We use the directed networks between articles of 24 Wikipedia language editions for producing the wikipedia ranking of world Universities (WRWU) using PageRank, 2DRank and CheiRank algorithms. This approach allows to incorporate various cultural views on world universities using the mathematical statistical analysis independent of cultural preferences. The Wikipedia ranking of top 100 universities provides about 60% overlap with the Shanghai university ranking demonstrating the reliable features of this approach. At the same time WRWU incorporates all knowledge accumulated at 24 Wikipedia editions giving stronger highlights for historically important universities leading to a different estimation of efficiency of world countries in university education. The historical development of university ranking is analyzed during ten centuries of their history.

  8. Imagine the Universe!

    NASA Technical Reports Server (NTRS)

    White, N.

    2003-01-01

    Welcome to the 2004 edition of the education CD from the Laboratory for High Energy Astrophysics at NASA Goddard Space Flight Center. We hope that you will find it to be an exciting and fun learning experience. We have tried very hard to make this CD as user-friendly as possible and along the way we have discovered some things that every user may need to know. Please read the README file found on the CD if you have any questions or problems using the disk. Then, after that, if you still have problems, email us at itu@athena.gsfc.nasa.gov. We will be happy to help you 'get going'! Below are links to all of the sites included on the CD. You will also find the addresses for the on-line version of each of these sites. If you have a good Internet connection available, we recommend that you view the sites on-line. There you will find the latest updated information, interactive activities, and active links to other sites. Included on the disk are: Imagine The Universe! This site is dedicated to a discussion about our Universe... what we know about it, how it is evolving, and the kinds of objects and phenomena it contains. Emphasizing the X-ray and gamma-ray parts of the electromagnetic spectrum, it also discusses how scientists know what they know, what mysteries remain, and how the answers to remaining mysteries may one day be found. Lots of movies, quizzes, and a special section for educators. Geared for ages 14 and up. This site can be viewed on-line at http://imagine.gsfc.nasa.gov/. StarChild: A learning center for young astronomers The 1998 Webby Award Winner for Best Education Website, StarChild is aimed at ages 4-14. It contains easy-to-understand information about our Solar System, the Universe, and space exploration. There are also activities, songs, movies, and puzzles! This site can be viewed on-line at http://starchild.gsfc.nasa.gov/. Astronomy Picture of the Day APOD offers a new astronomical image and caption each calendar day. We have captured the year 2003

  9. Rocket University at KSC

    NASA Technical Reports Server (NTRS)

    Sullivan, Steven J.

    2014-01-01

    "Rocket University" is an exciting new initiative at Kennedy Space Center led by NASA's Engineering and Technology Directorate. This hands-on experience has been established to develop, refine & maintain targeted flight engineering skills to enable the Agency and KSC strategic goals. Through "RocketU", KSC is developing a nimble, rapid flight engineering life cycle systems knowledge base. Ongoing activities in RocketU develop and test new technologies and potential customer systems through small scale vehicles, build and maintain flight experience through balloon and small-scale rocket missions, and enable a revolving fresh perspective of engineers with hands on expertise back into the large scale NASA programs, providing a more experienced multi-disciplined set of systems engineers. This overview will define the Program, highlight aspects of the training curriculum, and identify recent accomplishments and activities.

  10. The International Space University

    NASA Technical Reports Server (NTRS)

    Davidian, Kenneth J.

    1990-01-01

    The International Space University (ISU) was founded on the premise that any major space program in the future would require international cooperation as a necessary first step toward its successful completion. ISU is devoted to being a leading center for educating future authorities in the world space industry. ISU's background, goals, current form, and future plans are described. The results and benefits of the type of education and experience gained from ISU include technical reports describing the design projects undertaken by the students, an exposure to the many different disciplines which are a part of a large space project, an awareness of the existing activities from around the world in the space community, and an international professional network which spans all aspects of space activities and covers the globe.

  11. Language universals at birth.

    PubMed

    Gómez, David Maximiliano; Berent, Iris; Benavides-Varela, Silvia; Bion, Ricardo A H; Cattarossi, Luigi; Nespor, Marina; Mehler, Jacques

    2014-04-22

    The evolution of human languages is driven both by primitive biases present in the human sensorimotor systems and by cultural transmission among speakers. However, whether the design of the language faculty is further shaped by linguistic biological biases remains controversial. To address this question, we used near-infrared spectroscopy to examine whether the brain activity of neonates is sensitive to a putatively universal phonological constraint. Across languages, syllables like blif are preferred to both lbif and bdif. Newborn infants (2-5 d old) listening to these three types of syllables displayed distinct hemodynamic responses in temporal-perisylvian areas of their left hemisphere. Moreover, the oxyhemoglobin concentration changes elicited by a syllable type mirrored both the degree of its preference across languages and behavioral linguistic preferences documented experimentally in adulthood. These findings suggest that humans possess early, experience-independent, linguistic biases concerning syllable structure that shape language perception and acquisition.

  12. Universal leakage elimination

    SciTech Connect

    Byrd, Mark S.; Lidar, Daniel A.; Wu, L.-A.; Zanardi, Paolo

    2005-05-15

    'Leakage' errors are particularly serious errors which couple states within a code subspace to states outside of that subspace, thus destroying the error protection benefit afforded by an encoded state. We generalize an earlier method for producing leakage elimination decoupling operations and examine the effects of the leakage eliminating operations on decoherence-free or noiseless subsystems which encode one logical, or protected qubit into three or four qubits. We find that by eliminating a large class of leakage errors, under some circumstances, we can create the conditions for a decoherence-free evolution. In other cases we identify a combined decoherence-free and quantum error correcting code which could eliminate errors in solid-state qubits with anisotropic exchange interaction Hamiltonians and enable universal quantum computing with only these interactions.

  13. Zöllner's Universe

    NASA Astrophysics Data System (ADS)

    Kragh, Helge

    2012-12-01

    The idea that space is not Euclidean by necessity, and that there are other kinds of "curved" spaces, diffused slowly to the physical and astronomical sciences. Until Einstein's general theory of relativity, only a handful of astronomers contemplated a connection between non-Euclidean geometry and real space. One of them, the German astrophysicist Johann Carl Friedrich Zöllner (1834-1882), suggested in 1872 a remarkable cosmological model describing a finite universe in closed space. I examine Zöllner's little-known contribution to cosmology and also his even more unorthodox speculations of a four-dimensional space including both physical and spiritual phenomena. I provide an overview of Zöllner's scientific work, of his status in the German scientific community, and of the controversies caused by his polemical style of science. Zöllner's cosmology was effectively forgotten, but there is no reason why it should remain an unwritten chapter in the history of science.

  14. Universal visualization platform

    NASA Astrophysics Data System (ADS)

    Gee, Alexander G.; Li, Hongli; Yu, Min; Smrtic, Mary Beth; Cvek, Urska; Goodell, Howie; Gupta, Vivek; Lawrence, Christine; Zhou, Jainping; Chiang, Chih-Hung; Grinstein, Georges G.

    2005-03-01

    Although there are a number of visualization systems to choose from when analyzing data, only a few of these allow for the integration of other visualization and analysis techniques. There are even fewer visualization toolkits and frameworks from which one can develop ones own visualization applications. Even within the research community, scientists either use what they can from the available tools or start from scratch to define a program in which they are able to develop new or modified visualization techniques and analysis algorithms. Presented here is a new general-purpose platform for constructing numerous visualization and analysis applications. The focus of this system is the design and experimentation of new techniques, and where the sharing of and integration with other tools becomes second nature. Moreover, this platform supports multiple large data sets, and the recording and visualizing of user sessions. Here we introduce the Universal Visualization Platform (UVP) as a modern data visualization and analysis system.

  15. University Engagement at INL

    SciTech Connect

    Morrell, Sean Robert; Rynes, Amanda Renee

    2014-07-01

    There are currently over 900 facilities in over 170 countries which fall under International Atomic Energy Agency (IAEA) safeguards. As additional nations look to purse civilian nuclear programs or to expand infrastructure already in place, the number of reactors and accompanying facilities as well as the quantity of material has greatly increased. Due to the breadth of the threat and the burden placed on the IAEA as nuclear applications expand, it has become increasingly important that safeguards professionals have a strong understanding of both the technical and political aspects of nonproliferation starting early in their career. To begin overcoming this challenge, Idaho National Laboratory, has partnered with local universities to deliver a graduate level nuclear engineering course that covers both aspects of the field with a focus on safeguards applications. To date over 60 students across multiple disciplines have participated in this course with many deciding to transition into a nonproliferation area of focus in both their academic and professional careers.

  16. Universe exploration vision

    NASA Technical Reports Server (NTRS)

    O'Handley, D.; Swan, P.; Sadeh, W.

    1992-01-01

    U.S. space policy is discussed in terms of present and planned activities in the solar system and beyond to develop a concept for expanding space travel. The history of space exploration is briefly reviewed with references to the Mariner II, Apollo, and Discoverer programs. Attention is given to the issues related to return trips to the moon, sprint vs repetitive missions to Mars, and the implications of propulsion needs. The concept of terraforming other bodies within the solar system so that they can support human activity is identified as the next major phase of exploration. The following phase is considered to be the use of robotic or manned missions that extend beyond the solar system. Reference is given to a proposed Thousand Astronomical Units mission as a precursor to exploratory expansion into the universe, and current robotic mission activities are mentioned.

  17. Is the Universe odd?

    SciTech Connect

    Land, Kate; Magueijo, Joao

    2005-11-15

    We investigate the point-parity and mirror-parity handedness of the large angle anisotropy in the cosmic microwave background (CMB). In particular we consider whether the observed low CMB quadrupole could more generally signal odd point-parity, i.e., suppression of even multipoles. Even though this feature is 'visually' present in most renditions of the WMAP dataset we find that it never supports parity preference beyond the meagre 95% confidence level. This is fortunate as point-parity handedness implies almost certainly a high level of galactic contamination. Mirror reflection parity, on the contrary, is related to the emergence of a preferred axis, defining the symmetry plane. We use this technique to make contact with recent claims for an anisotropic Universe, showing that the detected preferred axis is associated with positive (even) mirror parity. This feature may be an important clue in identifying the culprit for this unexpected signal.

  18. Revealing the Universe

    NASA Astrophysics Data System (ADS)

    Cornell, James; Lightman, Alan

    1983-05-01

    Contributors include Owen Gingerich, Kenneth Bracher, Robert F. C. Vessot, Fred L. Whipple, Fred Franklin, Robert W. Noyes, Robert Rosner, Harvey Tananbaum, Alan P. Lightman, Walter H. G. Lewin, William H. Press, John Huchra, and George B. Field. Alan Lightman, a Fellow of the American Academy of Arts & Sciences since 1996, is adjunct professor of humanities at MIT. He is the author of several books on science, including "Ancient Light: Our Changing View of the Universe" (1991) and "Origins: The Lives and Worlds of Modern Cosmologists" (with R. Brawer, 1990). His works of fiction include "Einstein's Dreams" (1993), "The Diagnosis" (2000), which was a finalist for the National Book Award, and, most recently, "Reunion" (2003).

  19. Universal newborn hearing screening.

    PubMed

    Declau, F; Doyen, A; Robillard, T; de Varebeke, S Janssens

    2005-01-01

    Hearing loss is one of the most common congenital anomalies, occurring in approximately 1-2 infants per 1000. Left undetected, hearing impairments in infants can negatively impact speech and language acquisition, academic achievement, social and emotional development. These negative impacts can be diminished and even eliminated through early intervention at or before 6 months of age. Reliable screening tests that minimize referral rates and maximize sensitivity and specificity are available. The goal of universal neonatal hearing screening is to maximize linguistic and communicative competence and literacy development for children who are hard of hearing or deaf. Audiologic and medical evaluations should be in progress before 3 months of age. Infants with confirmed hearing loss should receive intervention before 6 months of age from health care and education professionals with expertise in hearing loss and deafness in infants and young children. PMID:16363265

  20. European Universe Awareness

    NASA Astrophysics Data System (ADS)

    Russo, P.; Miley, G.; Westra van Holthe, F.; Schrier, W.; Reed, S.

    2011-10-01

    The European Universe Awareness (EU-UNAWE) programme uses the beauty and grandeur of the cosmos to encourage young children, particularly those from underprivileged backgrounds, to develop an interest in science and technology and to foster a sense of global citizenship. EU-UNAWE is already active in 40 countries and comprises a global network of almost 500 astronomers, teachers and other educators. The programme was recently awarded a grant of 1.9 million euros by the European Union so that it can be further developed in five European countries and South Africa. The grant will be used to organise teacher training workshops and to develop educational materials, such as an astronomy news service for children and games. During this presentation we will outline some of the biggest achievements of EU-UNAWE to date and discuss future plans for the programme.

  1. Inflating an inhomogeneous universe

    SciTech Connect

    Easther, Richard; Price, Layne C.; Rasero, Javier E-mail: lpri691@aucklanduni.ac.nz

    2014-08-01

    While cosmological inflation can erase primordial inhomogeneities, it is possible that inflation may not begin in a significantly inhomogeneous universe. This issue is particularly pressing in multifield scenarios, where even the homogeneous dynamics may depend sensitively on the initial configuration. This paper presents an initial survey of the onset of inflation in multifield models, via qualitative lattice-based simulations that do not include local gravitational backreaction. Using hybrid inflation as a test model, our results suggest that small subhorizon inhomogeneities do play a key role in determining whether inflation begins in multifield scenarios. Interestingly, some configurations which do not inflate in the homogeneous limit ''succeed'' after inhomogeneity is included, while other initial configurations which inflate in the homogeneous limit ''fail'' when inhomogeneity is added.

  2. Fred Hoyle's Universe

    NASA Astrophysics Data System (ADS)

    Gregory, Jane

    2005-08-01

    Fred Hoyle was a Yorkshire truant who became the voice of British astronomy. For fifty years, he spoke out for astronomy in the newspapers, on government committees, at scientific meetings, in popular books and on the radio. He devised a never-ending history of the universe, and worked out how the elements were made. He founded a prestigious institute for theoretical astronomy and built a giant telescope, and if it rained on his summer holiday, he sat in his caravan and wrote science fiction novels for his legions of fans around the world. Fred Hoyle also claimed that diseases fall from the sky, that the big bang never happened, and that the Astronomer Royal should be abolished. When the outspoken Fred Hoyle spoke out for astronomy, some astronomers really wished he had kept his mouth shut. This book tells the behind-the-scenes story of Hoyle's widely acclaimed and deeply controversial role in the ideas, organization and public face of astronomy in post-war Britain. It chronicles the triumphs, acrimony, jealousies, rewards and bitter feuds of a field in turmoil, and meets the astronomers, contemplating cosmic questions, keeping secrets, losing their tempers, winkling information out of distant stars and, over tea on the lawn, discussing the finer points of libel law. Fred Hoyle's Universe draws on previously confidential government documents, recently released personal correspondence and interviews with Hoyle's friends, colleagues and critics, as well as with Hoyle himself, to bring you the man, the science, and the scandal behind the genial and genteel facade of the most exciting period in the history of astronomy.

  3. Between universalism and regionalism: universal systematics from imperial Japan.

    PubMed

    Lee, Jung

    2015-12-01

    Historiographic discussions of the universality and regionality of science have to date focused on European cases for making regional science universal. This paper presents a new perspective by moving beyond European origins and illuminating a non-European scientist's engagement with the universality and regionality of science. It will examine the case of the Japanese botanist Nakai Takenoshin (1882-1952), an internationally recognized authority on Korean flora based at Tokyo Imperial University. Serving on the International Committee on Botanical Nomenclature in 1926, Nakai endorsed and acted upon European claims of universal science, whilst simultaneously unsettling them with his regionally shaped systematics. Eventually he came to promote his own systematics, built regionally on Korean flora, as the new universal. By analysing his shifting claims in relation to those of other European and non-European botanists, this paper makes two arguments. First, universalism and regionalism were not contradictory foundations of scientific practice but useful tools used by this non-European botanist in maintaining his scientific authority as a representative Japanese systematist. Second, his claims to universality and regionalism were both imperially charged. An imperially monopolized study of Korean plants left a regional imprint on Nakai's systematics. In order to maintain his scientific authority beyond its region of origin he had to assert either the expanding regionalism of 'East Asia' or universalism.

  4. Is the Universe logotropic?

    NASA Astrophysics Data System (ADS)

    Chavanis, Pierre-Henri

    2015-07-01

    We consider the possibility that the universe is made of a single dark fluid described by a logotropic equation of state P = A ln( ρ/ρ*, where ρ is the rest-mass density, ρ * is a reference density, and A is the logotropic temperature. The energy density ɛ is the sum of two terms: a rest-mass energy term ρ c 2 that mimics dark matter and an internal energy term u( ρ) = - P( ρ) - A that mimics dark energy. This decomposition leads to a natural, and physical, unification of dark matter and dark energy, and elucidates their mysterious nature. In the early universe, the rest-mass energy dominates and the dark fluid behaves as pressureless dark matter ( P ≃ 0, ɛ ∝ a -3. In the late universe, the internal energy dominates and the dark fluid behaves as dark energy ( P ˜ - ɛ, ɛ ∝ ln a. The logotropic model depends on a single parameter B = A / ρ Λ c 2 (dimensionless logotropic temperature), where ρ Λ = 6.72 × 10-24 g m-3 is the cosmological density. For B = 0, we recover the ΛCDM model with a different justification. For B > 0, we can describe deviations from the ΛCDM model. Using cosmological constraints, we find that 0 ≤ B ≤ 0.09425. We consider the possibility that dark matter halos are described by the same logotropic equation of state. When B > 0, pressure gradients prevent gravitational collapse and provide halo density cores instead of cuspy density profiles, in agreement with the observations. The universal rotation curve of logotropic dark matter halos is consistent with the observational Burkert profile (Burkert, Astrophys. J. 447, L25 (1995)) up to the halo radius. It decreases as r -1 at large distances, similarly to the profile of dark matter halos close to the core radius (Burkert, arXiv:1501.06604). Interestingly, if we assume that all the dark matter halos have the same logotropic temperature B, we find that their surface density Σ 0 = ρ0 r h is constant. This result is in agreement with the observations (Donato et al., Mon

  5. Inter-Universal Quantum Entanglement

    NASA Astrophysics Data System (ADS)

    Robles-Pérez, S. J.; González-Díaz, P. F.

    2015-01-01

    The boundary conditions to be imposed on the quantum state of the whole multiverse could be such that the universes would be created in entangled pairs. Then, interuniversal entanglement would provide us with a vacuum energy for each single universe that might be fitted with observational data, making testable not only the multiverse proposal but also the boundary conditions of the multiverse. Furthermore, the second law of the entanglement thermodynamics would enhance the expansion of the single universes.

  6. Our Astounding Universe

    NASA Astrophysics Data System (ADS)

    Mishra, Monika

    2016-04-01

    The philosophy of my life is to keep encouraging children to think beyond they could achieve easily. I understand children are adaptive to change and take things with an open mind. They are ready to experiment with new things and dare to dream big. I am fortunate to being a teacher by profession and thus I always attempt experimenting, observing, and participating with other children and adults. Children learn through play. From birth, children are active participants in building their own understanding. Teachers prepare the environment to help each child build on what they already know. It is such a great pleasure to observe every young kid that becomes excited and curious to know when we show them the Universe pictures and tell them about the strange objects in our Universe. So my aim is to keep them ignited by doing different activities throughout the year related to Space. I am always a firm believer of: Creativity is the key to success in the future, and primary education is where teachers can bring creativity in children at that level. One of my main ways of teaching is to conduct various presentations on The Solar System and beyond and debates on Space explorations. A Planet making project is one of the all-time favorite project for my students where they dare to dream to fly in the universe, and with their imagination, kids make different celestial objects and present them. To inculcate scientific attitude I arrange film screening, simulation exercises and quizzes on various topics of astronomy. Every year we celebrate World Space Week 4th to 10th of Oct. The motivation among all came through different hands-on activities like-painting, slogan competition, topics related to space, poetry and essay writing on various topics related to astronomy, assembly presentations in school. I am indeed overwhelmed when I started the very special Space and Astronomy club where young toddlers are involved in different activities like a star gazing program, conducting

  7. 13 Universities on NCAA Probation.

    ERIC Educational Resources Information Center

    Chronicle of Higher Education, 1984

    1984-01-01

    The 13 universities currently on National Collegiate Athletics Association probation, their probation expiration dates, sports affected, sanctions, and grounds for probationary action are listed. (MSE)

  8. The Medieval German University: Transformation and Innovation.

    ERIC Educational Resources Information Center

    Schwinges, Rainer Christoph

    1998-01-01

    Discusses the development of the university system within the Holy Roman Empire, especially in Germany, explaining that the University of Prague in 1348 was the Empire's first university. Reports that after the University of Prague, the new university type, or the "German type," developed by combining types of universities in Bologna and Paris.…

  9. Building Effective Community-University Partnerships: Are Universities Truly Ready?

    ERIC Educational Resources Information Center

    Curwood, Susan Eckerle; Munger, Felix; Mitchell, Terry; Mackeigan, Mary; Farrar, Ashley

    2011-01-01

    Community service learning and community-based research necessitate the development of strong community-university partnerships. In this paper, students, faculty, and a community partner critically reflect upon the process of establishing a long-term community-university partnership through the integration of a community service learning component…

  10. McMaster University`s artificial computing system

    SciTech Connect

    Dawes, A.; Bentley, M.

    1996-12-31

    This will be McMaster University`s first entry into the AAAI Mobile Robotics competition. As such, this year will serve as a testing ground for future developments. It is the goal of the designers to experiment with new techniques and approaches based on their engineering background.

  11. The Rockefeller University: College and University Systems Environment.

    ERIC Educational Resources Information Center

    CAUSE/EFFECT, 1981

    1981-01-01

    With a unique organizational structure, the Rockefeller University's need for administrative information systems is different from most institutions of higher education. The financial reporting needs of the many different laboratories led the university to purchase a computer-based accounting system. (MLW)

  12. The European System for Electing University Presidents and University Governance

    ERIC Educational Resources Information Center

    Ma, Huaide

    2014-01-01

    The system of electing university presidents in Spain, Switzerland, Italy, and the United Kingdom has distinctive characteristics. Almost all university presidents are elected by teachers and students, either directly or indirectly through elections with government approval of the appointment a mere formality. Principles of these elections include…

  13. Assessing Civic Engagement at Indiana University-Purdue University Indianapolis

    ERIC Educational Resources Information Center

    Pike, Gary R.; Bringle, Robert G.; Hatcher, Julie A.

    2014-01-01

    Faculty and staff at Indiana University-Purdue University Indianapolis (IUPUI) have developed several tools to assess campus civic engagement initiatives. This chapter describes the IUPUI Faculty Survey and the Civic-Minded Graduate Scale, and reports on findings from campus-based assessment and research.

  14. Corporate Universities versus Traditional Universities: Comparison through Published Organisation Documentation

    ERIC Educational Resources Information Center

    Walton, John S.; Martin, Michele C.

    2004-01-01

    This paper is a part of an ongoing empirical, multi-modal comparative investigation into corporate universities in the US and the UK, the first stage of which was reported in Walton and Martin (2000). This second stage consists of an in-depth comparative study of the aims and objectives of corporate universities in the UK and US compared to…

  15. Law of Universal Repulsion

    NASA Astrophysics Data System (ADS)

    Han, Yongquan

    2012-02-01

    All objects in the universe repel each other. Repulsion between two objects is directly proportional to the external energy (mv^2) of their relative motion and indirectly proportional to their relative motion radius (one object is in relative rest, while the other one is in relative motion). Application examples Suppose a man whose mass is 100 kg, runs on the earth at a speed of 10 meters per second. The radius of the earth is 637100 meters. The repulsion between the earth and the man is: F=mv^2/r=0.00157N; if his speed reaches the first cosmic speed ( 7.9 km per second ), then calculate: F=mv^2/r=980N, just overcome the gravity of the earth. A car with a certain velocity running in a straight highway ( actually with some slight curves ) can't fly up. However, if it encounters an arched bridge, it is possible for the car to fly. That is the consequence of the arch bridge has changed its movement radius, and the repulsion is increased. A aircraft's taking off and flying are not only because of the fluid - air, but also because of the change of its motion radius ( forming virtual arched bridge in the air ), which increases the repulsion.

  16. University of Sao Paulo

    SciTech Connect

    Acquadro, J.C.; Added, N.; Ferraretto, M.

    1995-08-01

    Argonne has agreed to assist the University of Sao Paulo (USP) in the construction of a small superconducting heavy-ion linac to serve as an energy booster for projectiles from their 8-MV tandem. This booster will be similar in many respects to the ANL booster linac built in the late 1970s. The ANL contribution to this project will be (1) to build (at USP expense) 14 split-ring niobium resonators and some of the associated rf electronics, (2) to provide technical information, and (3) to train USP staff members in several phases of superconducting-linac technology. Two Brazilian engineers worked at Argonne for one year, gaining experience in cryogenics and in superconducting-resonator technology. Another engineer worked on the new control system at ATLAS for two years, the first year supported by Sao Paulo and the second with direct ANL support. Sao Paulo personnel returned to ANL in 1993 for assembly and testing of the first batch of completed resonators. The fabrication of the resonators will be completed by early 1995 when the Sao Paulo personnel will come back for final assembly and testing. Fabrication of electronics modules at ANL is still in progress.

  17. Local Universe Dwarf Galaxies

    NASA Astrophysics Data System (ADS)

    Carignan, Claude

    2015-08-01

    One of the outstanding problems in cosmology is addressing the "small-scale crisis" and understanding structure formation at the smallest scales. Standard Lambda Cold Dark Matter cosmological simulations of Milky Way-size DM halos predict many more DM sub-halos than the number of dwarf galaxies observed. This is the so-called Missing Satellites Problem. The most popular interpretation of the Missing Satellites Problem is that the smallest dark matter halos in the universe are extremely inefficient at forming stars. The virialized extent of the Milky Way's halo should contain ~500 satellites, while only ˜100 satellites and dwarfs are observed in the whole Local Group. Despite the large amount of theoretical work and new optical observations, the discrepancy, even if reduced, still persists between observations and hierarchical models, regardless of the model parameters. It may be possible to find those isolated ultra-faint missing dwarf galaxies via their neutral gas component, which is one of the goals we are pursuing with the SKA precursor KAT-7 in South Africa, and soon with the SKA pathfinder MeerKAT.

  18. Universal ripper miner

    DOEpatents

    Morrell, Roger J.; Larson, David A.

    1991-01-01

    A universal ripper miner used to cut, collect and transfer material from an underground mine working face includes a cutter head that is vertically movable in an arcuate cutting cycle by means of drive members, such as hydraulically actuated pistons. The cutter head may support a circular cutter bit having a circular cutting edge that may be indexed to incrementally expose a fresh cutting edge. An automatic indexing system is disclosed wherein indexing occurs by means of a worm gear and indexing lever mechanism. The invention also contemplates a bi-directional bit holder enabling cutting to occur in both the upstroke and the downstroke cutting cycle. Another feature of the invention discloses multiple bits arranged in an in-line, radially staggered pattern, or a side-by-side pattern to increase the mining capacity in each cutting cycle. An on-board resharpening system is also disclosed for resharpening the cutting edge at the end of cutting stroke position. The aforementioned improvement features may be used either singly, or in any proposed combination with each other.

  19. Gravity Driven Universe

    NASA Astrophysics Data System (ADS)

    Masters, Roy

    2010-03-01

    Flowing global gravitation initially produced space without time or mass. Space-time and mass are properties of flowing global gravitation. From its fabric, primal mass spins spontaneously giving rise to local gravitational space-time curvatures. Global gravity is the unifying background field. Gravity began flowing from its singularity with a big whoosh. It curves with angular rotational precession, creating a spatial geometry similar to the windings of a ball of string. Three-dimensional global gravity swirls locally into massive densities. Concurrently with these densities, local gravity curvatures of space-time arise. The expanse between celestial objects is not completely empty, void space as generally believed; it is antecedent gravity, a prerequisite associated field necessary for originating the first quantum particles. Gravity is dark energy; gravity's spin, as the second fundamental force, is electromagnetic dark matter. Electromagnetic masses attract then gravity compresses hot, dense and small---then bang, the first hydrogen star of which there are many. There may have been many big bangs, but no Big Bang that ultimately created the universe.

  20. Universal Quantum Measurements

    NASA Astrophysics Data System (ADS)

    Brody, Dorje C.; Hughston, Lane P.

    2015-06-01

    We introduce a family of operations in quantum mechanics that one can regard as “universal quantum measurements” (UQMs). These measurements are applicable to all finite dimensional quantum systems and entail the specification of only a minimal amount of structure. The first class of UQM that we consider involves the specification of the initial state of the system—no further structure is brought into play. We call operations of this type “tomographic measurements”, since given the statistics of the outcomes one can deduce the original state of the system. Next, we construct a disentangling operation, the outcome of which, when the procedure is applied to a general mixed state of an entangled composite system, is a disentangled product of pure constituent states. This operation exists whenever the dimension of the Hilbert space is not a prime, and can be used to model the decay of a composite system. As another example, we show how one can make a measurement of the direction along which the spin of a particle of spin s is oriented (s = 1/2, 1,...). The required additional structure in this case involves the embedding of CP1 as a rational curve of degree 2s in CP2s.

  1. Universal Signal Conditioning Amplifier

    NASA Technical Reports Server (NTRS)

    Kinney, Frank

    1997-01-01

    The Technological Research and Development Authority (TRDA) and NASA-KSC entered into a cooperative agreement in March of 1994 to achieve the utilization and commercialization of a technology development for benefiting both the Space Program and U.S. industry on a "dual-use basis". The technology involved in this transfer is a new, unique Universal Conditioning Amplifier (USCA) used in connection with various types of transducers. The project was initiated in partnership with I-Net Corporation, Lockheed Martin Telemetry & Instrumentation (formerly Loral Test and Information Systems) and Brevard Community College. The project consists of designing, miniaturizing, manufacturing, and testing an existing prototype of USCA that was developed for NASA-KSC by the I-Net Corporation. The USCA is a rugged and field-installable self (or remotely)- programmable amplifier that works in combination with a tag random access memory (RAM) attached to various types of transducers. This summary report comprises performance evaluations, TRDA partnership tasks, a project summary, project milestones and results.

  2. Viscous dark fluid universe

    SciTech Connect

    Hipolito-Ricaldi, W. S.; Velten, H. E. S.; Zimdahl, W.

    2010-09-15

    We investigate the cosmological perturbation dynamics for a universe consisting of pressureless baryonic matter and a viscous fluid, the latter representing a unified model of the dark sector. In the homogeneous and isotropic background the total energy density of this mixture behaves as a generalized Chaplygin gas. The perturbations of this energy density are intrinsically nonadiabatic and source relative entropy perturbations. The resulting baryonic matter power spectrum is shown to be compatible with the 2dFGRS and SDSS (DR7) data. A joint statistical analysis, using also Hubble-function and supernovae Ia data, shows that, different from other studies, there exists a maximum in the probability distribution for a negative present value q{sub 0{approx_equal}}-0.53 of the deceleration parameter. Moreover, while previous descriptions on the basis of generalized Chaplygin-gas models were incompatible with the matter power-spectrum data since they required a much too large amount of pressureless matter, the unified model presented here favors a matter content that is of the order of the baryonic matter abundance suggested by big-bang nucleosynthesis.

  3. Hydrogen fuel - Universal energy

    NASA Astrophysics Data System (ADS)

    Prince, A. G.; Burg, J. A.

    The technology for the production, storage, transmission, and consumption of hydrogen as a fuel is surveyed, with the physical and chemical properties of hydrogen examined as they affect its use as a fuel. Sources of hydrogen production are described including synthesis from coal or natural gas, biomass conversion, thermochemical decomposition of water, and electrolysis of water, of these only electrolysis is considered economicially and technologically feasible in the near future. Methods of production of the large quantities of electricity required for the electrolysis of sea water are explored: fossil fuels, hydroelectric plants, nuclear fission, solar energy, wind power, geothermal energy, tidal power, wave motion, electrochemical concentration cells, and finally ocean thermal energy conversion (OTEC). The wind power and OTEC are considered in detail as the most feasible approaches. Techniques for transmission (by railcar or pipeline), storage (as liquid in underwater or underground tanks, as granular metal hydride, or as cryogenic liquid), and consumption (in fuel cells in conventional power plants, for home usage, for industrial furnaces, and for cars and aircraft) are analyzed. The safety problems of hydrogen as a universal fuel are discussed, noting that they are no greater than those for conventional fuels.

  4. Universities and Patent Demands

    PubMed Central

    Cordova, Andrew K.; Feldman, Robin

    2015-01-01

    Research universities have made enormous contributions to the field of medicine and the treatment of human disease. Alone or in collaboration with pharmaceutical companies, academic researchers have added to the store of knowledge that has led to numerous life science breakthroughs. A new chapter may be opening for academic researchers, however, that could lead to a darker tale. ‘The mouse that trolled: the long and tortuous history of a gene mutation patent that became an expensive impediment to Alzheimer's research, by Bubela et al., chronicles one such tale.’ The authors do an excellent job of bringing to life the twisting saga that engulfed numerous academic and non-profit Alzheimer's researchers over many years. The authors note that the story is an outlier, but sadly, that may not be the case. There are increasing signs that academic researchers and their institutions are being caught up in the rush for gold that is accompanying the proliferation of the non-practicing entity business model. As I have noted before, academic institutions have a dual role, as keepers of the academic flame and guardians of the public monies entrusted to them through state and federal research funding. The specter of taxpayer money being used, not to advance research and for the betterment of society, but as part of schemes to extract money from productive companies may not sit well with voters, and ultimately, with legislators. In that case, researchers and institutions themselves may have much to lose. PMID:27774221

  5. Universal signal conditioning amplifier

    NASA Technical Reports Server (NTRS)

    Medelius, Pedro J.; Hallberg, Carl; Cecil, Jim

    1994-01-01

    A state-of-the-art instrumentation amplifier capable of being used with most types of transducers has been developed at the Kennedy Space Center. This Universal Signal Conditioning Amplifier (USCA) can eliminate costly measurement setup item and troubleshooting, improve system reliability and provide more accurate data than conventional amplifiers. The USCA can configure itself for maximum resolution and accuracy based on information read from a RAM chip attached to each transducer. Excitation voltages or current are also automatically configured. The amplifier uses both analog and digital state-of-the-art technology with analog-to-digital conversion performed in the early stages in order to minimize errors introduced by offset and gain drifts in the analog components. A dynamic temperature compensation scheme has been designed to achieve and maintain 12-bit accuracy of the amplifier from 0 to 70 C. The digital signal processing section allows the implementation of digital filters up to 511th order. The amplifier can also perform real-time linearizations up to fourth order while processing data at a rate of 23.438 kS/s. Both digital and analog outputs are available from the amplifier.

  6. Sign Program for a University.

    ERIC Educational Resources Information Center

    Architectural and Engineering News, 1968

    1968-01-01

    A co-ordinated sign program for a multi-campus university not only helps students and visitors find their way around, but is a design element that adds identification and unity. Graphic designer, Paul Arthur, has designed a modular sign system for the University of Tennessee with all elements having standard color, lettering, size and materials.…

  7. Sustainability in Brazilian Federal Universities

    ERIC Educational Resources Information Center

    Palma, Lisiane Celia; de Oliveira, Lessandra M.; Viacava, Keitiline R.

    2011-01-01

    Purpose: The purpose of this paper is to identify the number of courses related to sustainability offered in bachelor degree programs of business administration in Brazilian federal universities. Design/methodology/approach: An exploratory research was carried out based on a descriptive scope. The process of mapping federal universities in Brazil…

  8. The Future of the Universe.

    ERIC Educational Resources Information Center

    Page, Don N.; McKee, M. Randall

    1983-01-01

    The future of the universe is discussed in terms of several models. These include the closed, open, and critical models of the universe. Black holes and speculation on what may happen to life in the cosmological models are also discussed. (JN)

  9. University Satellite Campus Management Models

    ERIC Educational Resources Information Center

    Fraser, Doug; Stott, Ken

    2015-01-01

    Among the 60 or so university satellite campuses in Australia are many that are probably failing to meet the high expectations of their universities and the communities they were designed to serve. While in some cases this may be due to the demand driven system, it may also be attributable in part to the ways in which they are managed. The…

  10. The Overseas University Leadership Program

    ERIC Educational Resources Information Center

    Yu, Haibo

    2014-01-01

    This article analyzes the content and format of the Overseas University Leadership Program organized by the National Academy of Education Administration in Beijing, China. Universities provide the country with scientific and technological expertise, pave the path to individual advancement, and are major economic engines. China's new mission…

  11. Gifted Students' Transition to University

    ERIC Educational Resources Information Center

    Mendaglio, Sal

    2013-01-01

    The transition from school to university presents novel demands for all students. Although this educational milestone has been addressed by scholars, particularly those interested in the study of higher education, there is a dearth of literature regarding gifted students' experience of their handling demands of first-year university. In the…

  12. Outdoor Recreation at Brock University

    ERIC Educational Resources Information Center

    Breunig, Mary; O'Connell, Tim; Hutson, Garrett

    2007-01-01

    Brock University offers both undergraduate and graduate programs and is host to approximately 17,000 students. It is the only Canadian university located in a World Biosphere Reserve--the Niagara Escarpment. The Bruce Trail passes through campus, and offers ample opportunities for hiking, mountain biking, nature interpretation and outdoor…

  13. Psychiatric Epidemiology: The University Paradigm

    ERIC Educational Resources Information Center

    Favazza, Armando R.

    1976-01-01

    In an effort to provide a meaningful didactic experience within the constraint of limited teaching hours, the author searched for a "community" which might be examined. A community fulfilling the established criteria for trainees in a university training program is the university itself. Its use is described. (LBH)

  14. A University for the People

    ERIC Educational Resources Information Center

    Webb, Sue

    2010-01-01

    Over the past year lifelong learning in universities has come under the spotlight of politicians, educationalists, journalists and adult learners. For some, the concern has been about countering the fall-out from changes in public funding and challenging the reduction in provision--and even closure--of university departments. A number of…

  15. Organizational Roles of University Committees

    ERIC Educational Resources Information Center

    Hobbs, Walter C.

    1975-01-01

    On the basis of relationships found empirically to hold among 20 organizational characteristics of university committees, two patterns are derived of the organizational roles which university committees play: the deliberative, collective decision-making role of member-dominated committees and the one-person advisory role of chairperson-dominated…

  16. Internationalization and the Cosmopolitical University

    ERIC Educational Resources Information Center

    Britez, Rodrigo; Peters, Michael A.

    2010-01-01

    This article discusses some of the issues that surround the internationalization of higher education as a way to open discussion about the construction of an alternative cosmopolitical vision of the university, necessary if the university is to fulfill any historic tasks concerning the creation of globally aware citizens. The authors indicate that…

  17. China's Vocational Universities. ERIC Digest.

    ERIC Educational Resources Information Center

    Ding, Anning

    This ERIC Digest describes the development and characteristics of vocational universities (VUs) in China. In response to the demand for increased numbers of trained technical workers in the 1980's, VUs developed and the higher vocational education system in China was reformed. Currently, 101 vocational universities are in existence in China. These…

  18. Cable Television and the University.

    ERIC Educational Resources Information Center

    Lyman, Richard

    Universities contain powerful blocs of resistance to new educational technology, perhaps especially to television. University attitudes and structures as well as faculty ignorance, apathy, and resistance affect the development of cable television. No one seems to speak with great confidence and precision about the educational potential of cable.…

  19. The University as an Organization.

    ERIC Educational Resources Information Center

    Perkins, James A., Ed.

    This collection of studies by men and women who understand universities and have the experience and ability to view them in perspectives of history and international experience demonstrates that universities constitute a genus of institution that is unique in its totality and comparable to other organizations only in certain of its…

  20. University--Science Fair Partnership.

    ERIC Educational Resources Information Center

    Tallman, Erika; Taylor, Karen

    1997-01-01

    Describes a partnership between a fifth-grade teacher and a university methods professor that involved developing an elementary science fair project mentored by university students. Provides opportunities for elementary students to conduct scientific investigations to learn about science, and opportunities for education majors to have firsthand…

  1. Growing an Emerging Research University

    ERIC Educational Resources Information Center

    Birx, Donald L.; Anderson-Fletcher, Elizabeth; Whitney, Elizabeth

    2013-01-01

    The emerging research college or university is one of the most formidable resources a region has to reinvent and grow its economy. This paper is the first of two that outlines a process of building research universities that enhance regional technology development and facilitate flexible networks of collaboration and resource sharing. Although the…

  2. Student Leadership at the University

    ERIC Educational Resources Information Center

    Hilliard, Ann T.

    2010-01-01

    The focus of this article is about the utilization of student leadership at the University. Based on research, student leadership opportunities at the university have been frequently at a low percentage (Zimmerman, Burkhart, 2002). The researcher identifies practical ways to involve students in various leadership activities. Emphases are placed on…

  3. Mature Students at Lancaster University.

    ERIC Educational Resources Information Center

    Lucas, Susan; Ward, Peter

    1985-01-01

    Analyzes the degree performance of adult students admitted to the University of Lancaster (England) during the period 1978-80, and analyzes the adult student entrants to the university by age group, sex, and entry qualifications during the same period. (CT)

  4. Environmental Management at Swedish Universities

    ERIC Educational Resources Information Center

    Arvidsson, Karin

    2004-01-01

    Since 1996, all Swedish public authorities, which includes most universities, have been made responsible for contributing to the sustainable development of the society. Swedish universities are thus required to submit annual environmental reports about their policies, structures and actions. This study provides a review of the activities that…

  5. Industry-University Research Programs.

    ERIC Educational Resources Information Center

    Smith, Kenneth A.

    1984-01-01

    Points out advantages and disadvantages of industry-university research programs from industry and university viewpoints. Identifies conditions essential for long-term success of such arrangements. Also provides a case study of practices at the Massachusetts Institute of Technology (MIT), discussing policy guidelines and giving examples of joint…

  6. Water Recycling in Schools & Universities

    ERIC Educational Resources Information Center

    Meeten, Nick

    2013-01-01

    Consider the waste streams generated in schools and universities. So what is in the typical used water generated in schools and universities? It is typically about 99 percent water, with the remaining 1 percent mainly made up of organic compounds. Used water contains nutrients such as nitrogen and phosphorous. When one judges it on its quality, it…

  7. What Is the University Today?

    ERIC Educational Resources Information Center

    Heaney, Conor

    2015-01-01

    What is the University today? In this paper, a Foucault and Deleuzo-Guattarian inspired approach is taken. I argue that the University is, today, a site of "neoliberal governmentality," which governs students and academics as sites of human capital. That is, students and academics are governed to self-govern themselves as sites of human…

  8. Are Universities Becoming More Unequal?

    ERIC Educational Resources Information Center

    Yan, Lau; Rosen, Harvey S.

    2016-01-01

    Observers have expressed concern about growing inequality in resources across universities. But are universities really becoming more unequal? We argue that the typical approach of examining endowment growth alone is not sensible. In line with the literature on household inequality, we focus instead on a comprehensive income measure. We find that…

  9. The Work of the University.

    ERIC Educational Resources Information Center

    Levin, Richard C.

    The essays and speeches in this collection, published on Richard Levins 10th anniversary as president of Yale University, reflects his intellectual passions and the depth of his understanding of the work of the university.The first section, "From the Beginning," contains: (1) "Calm Seas, Auspicious Gales"; and (2) "Beyond the Ivy Walls: Our…

  10. Universities: Engaging with Local Communities

    ERIC Educational Resources Information Center

    Universities UK, 2010

    2010-01-01

    This leaflet illustrates the many ways in which universities impact on the local area. Universities are a major contributor to the economy in their own right, both as employers and purchasers of goods. Their social and cultural influence is also felt through their provision of: (1) art galleries, museums and exhibitions; (2) cinemas and theatres;…

  11. Managing University Research Microdata Collections

    ERIC Educational Resources Information Center

    Woolfrey, Lynn; Fry, Jane

    2015-01-01

    This article examines the management of microdata collections in a university context. It is a cross-country analysis: Collection management at data services in Canada and South Africa are considered. The case studies are of two university sub-contexts: One collection is located in a library; the other at a Faculty-based Data Service. Stages in…

  12. University Ranking as Social Exclusion

    ERIC Educational Resources Information Center

    Amsler, Sarah S.; Bolsmann, Chris

    2012-01-01

    In this article we explore the dual role of global university rankings in the creation of a new, knowledge-identified, transnational capitalist class and in facilitating new forms of social exclusion. We examine how and why the practice of ranking universities has become widely defined by national and international organisations as an important…

  13. University Research: Understanding Its Role

    ERIC Educational Resources Information Center

    Association of American Universities, 2011

    2011-01-01

    Since World War II, the federal government has maintained a partnership with the nation's research universities, based on the bipartisan consensus that (1) the nation needs to invest its resources in curiosity-driven, competitively awarded basic research, and (2) basic research is best conducted at the nation's universities. As a result of that…

  14. The Universities and Federal Regulation.

    ERIC Educational Resources Information Center

    Crowley, John C.

    The impact of increasing federal regulation on American universities is discussed based on an informal survey of senior academic and administrative officials in 13 public and private universities. As government regulation is becoming more intensive and compliance more resource- and time-consuming, government is perceived as having little…

  15. Towards a Cosmopolitan African University

    ERIC Educational Resources Information Center

    Waghid, Y.

    2009-01-01

    In this article I offer a defence of cosmopolitanism as an enabling condition for university education in Africa. Recent xenophobic outbursts in South Africa suggests that the enactment of defensible virtues in societies remain distant from the practices of many people. My contention is that university education ought to take seriously the…

  16. Integrating Environmental Sustainability into Universities

    ERIC Educational Resources Information Center

    Ralph, Meredith; Stubbs, Wendy

    2014-01-01

    Universities play a fundamental role in addressing global environmental challenges as their education, research and community involvement can produce long-lasting environmental effects and societal change. By demonstrating best practice in their operations, research and teaching, universities have both multiple and multiplier effects on society.…

  17. Quantum entanglement of baby universes

    SciTech Connect

    Essman, Eric P.; Aganagic, Mina; Okuda, Takuya; Ooguri, Hirosi

    2006-12-07

    We study quantum entanglements of baby universes which appear in non-perturbative corrections to the OSV formula for the entropy of extremal black holes in type IIA string theory compactified on the local Calabi-Yau manifold defined as a rank 2 vector bundle over an arbitrary genus G Riemann surface. This generalizes the result for G=1 in hep-th/0504221. Non-perturbative terms can be organized into a sum over contributions from baby universes, and the total wave-function is their coherent superposition in the third quantized Hilbert space. We find that half of the universes preserve one set of supercharges while the other half preserve a different set, making the total universe stable but non-BPS. The parent universe generates baby universes by brane/anti-brane pair creation, and baby universes are correlated by conservation of non-normalizable D-brane charges under the process. There are no other source of entanglement of baby universes, and all possible states are superposed with the equal weight.

  18. Agnosis in the University Workplace

    ERIC Educational Resources Information Center

    Whelan, Andrew

    2016-01-01

    One significant, tangible and interesting challenge for the privatised university is its impedance of particular forms of effective engagement and action in teaching and research, notably with respect to inequities in the broader social context, and the position of the university within that context. In the face of significant resource constraints…

  19. Jaspers' Concept of the University

    ERIC Educational Resources Information Center

    Burch, Robert

    1976-01-01

    The general character of Jaspers' idea of the university is outlined, and some basic objections to that view are examined. Throughout the paper an attempt is made to establish the relevance of Jaspers' work to current university problems. (Author/LBH)

  20. Baby universes with induced gravity.

    NASA Astrophysics Data System (ADS)

    Gao, Yihong; Gao, Hongbo

    1989-12-01

    Some quantum effects of baby universes with induced gravity are discussed. The authors prove that the interactions between the baby-parent universes are non-local, and argue that the induced low-energy cosmological constant is zero. This argument does not depend on the detail of the induced potential.

  1. The Architect as University President

    ERIC Educational Resources Information Center

    Barker, James F.

    2008-01-01

    Architecture blends the arts and sciences in a vigorous way--one well suited to a university presidency. In this article, the author shares how his architectural education and background prepared and helped him for his responsibility as president of Clemson University. A big part of his responsibility is to help plan, financially support, build,…

  2. Infra-red soft universality

    SciTech Connect

    Jack, I.

    1997-06-15

    In a special class of supersymmetric grand unified theories, the commonly assumed universal form of the soft supersymmetry-breaking terms is approached in the infra-red limit. The resulting universal scalar mass and trilinear coupling are predicted in terms of the gaugino mass.

  3. Desktop Publishing in the University.

    ERIC Educational Resources Information Center

    Burstyn, Joan N., Ed.

    Highlighting changes in the work of people within the university, this book presents nine essays that examine the effects of desktop publishing and electronic publishing on professors and students, librarians, and those who work at university presses and in publication departments. Essays in the book are: (1) "Introduction: The Promise of Desktop…

  4. University Students: Attainment and Sport

    ERIC Educational Resources Information Center

    Hendry, L. B.; Douglass, L.

    1975-01-01

    The extent to which 230 university students following a one-year psychology course were 'active' (i.e., competitively or recreationally involved) in sport or 'non-participant' was compared with their scores on measures of personality, attitude, social class, sex, previous school involvement in sport, and attainment in university course work.…

  5. University Autonomy: The Ethiopian Experience

    ERIC Educational Resources Information Center

    Gebru, Demewoz Admasu

    2013-01-01

    This article discusses and analyzes the state of university autonomy in Ethiopia at a time when the country has embarked on massive expansion of the sector, and universities are established out of urban centers based on regional equity. Legislative provisions and case study reports were reviewed, and lived experiences documented with emphasis on…

  6. The Philosophy of University Housing

    ERIC Educational Resources Information Center

    Wallace, James A.

    2012-01-01

    This article examines a stated philosophy of university housing and the philosophy's effect on the facilitation of the personal and intellectual growth of students residing in the residence halls and the development of a sense of community. This particular philosophy governs the housing operations at Southern Illinois University at Carbondale.…

  7. University Rankings and Social Science

    ERIC Educational Resources Information Center

    Marginson, Simon

    2014-01-01

    University rankings widely affect the behaviours of prospective students and their families, university executive leaders, academic faculty, governments and investors in higher education. Yet the social science foundations of global rankings receive little scrutiny. Rankings that simply recycle reputation without any necessary connection to real…

  8. Islamic Universities Spread through Africa

    ERIC Educational Resources Information Center

    Lindow, Megan

    2007-01-01

    This article reports on new universities for Muslims, many supported by groups in the Middle East, which are spreading through the sub-Saharan region. The Islamic University in Uganda is a prime example of a new kind of institution that has slowly been spreading its way across the continent. Embracing both conservative Muslim values and modern…

  9. Visualising the "Internationalisation" of Universities

    ERIC Educational Resources Information Center

    Elkin, Graham; Devjee, Faiyaz; Farnsworth, John

    2005-01-01

    Purpose: There are few means of measuring whether universities have effective international programmes or policies in response to increasing globalisation. The purpose of this paper is to report on the development and testing of a model for measuring the internationalisation of universities and to assist with the strategic planning of…

  10. The Black Hole Universe Model

    NASA Astrophysics Data System (ADS)

    Zhang, Tianxi

    2014-06-01

    The black hole universe model is a multiverse model of cosmology recently developed by the speaker. According to this new model, our universe is a fully grown extremely supermassive black hole, which originated from a hot star-like black hole with several solar masses, and gradually grew up from a supermassive black hole with million to billion solar masses to the present state with trillion-trillion solar masses by accreting ambient matter or merging with other black holes. The entire space is structured with infinite layers or universes hierarchically. The innermost three layers include the universe that we live, the inside star-like and supermassive black holes called child universes, and the outside space called mother universe. The outermost layer is infinite in mass, radius, and entropy without an edge and limits to zero for both the matter density and absolute temperature. All layers are governed by the same physics and tend to expand physically in one direction (outward or the direction of increasing entropy). The expansion of a black hole universe decreases its density and temperature but does not alter the laws of physics. The black hole universe evolves iteratively and endlessly without a beginning. When one universe expands out, a new similar one is formed from inside star-like and supermassive black holes. In each of iterations, elements are resynthesized, matter is reconfigurated, and the universe is renewed rather than a simple repeat. The black hole universe is consistent with the Mach principle, observations, and Einsteinian general relativity. It has only one postulate but is able to explain all phenomena occurred in the universe with well-developed physics. The black hole universe does not need dark energy for acceleration and an inflation epoch for flatness, and thus has a devastating impact on the big bang model. In this talk, I will present how this new cosmological model explains the various aspects of the universe, including the origin

  11. University cardiology clinic.

    PubMed

    Borozanov, V

    2013-01-01

    In distant 1972, within framework of the Internal Clinic, a cardiologic department was organized which was soon, on 29.XII.1974, transformed into the Cardiology Clinic, later the Institute for Heart Diseases, and in 2008 was renamed the University Cardiology Clinic. The greater part of its foundation was possible owing to Prof. Dimitar Arsov and Prof. Radovan Percinkovski, who was the clinic's first director in the period from 1974 to 1984. In 1985, the Clinic moved into its own new building, and in that way was physically detached from the Internal Clinics. Until its move to the new building, the Clinic functioned in the Internal Clinics building, organized as an outpatient polyclinic and inpatient infirmary department with clinical beds, a coronary intensive care unit and a haemodynamics laboratory equipped with the most modern equipment of that time. Today the Clinic functions through two integral divisions: an inpatient infirmary department which comprises an intensive coronary care unit and fourteen wards which altogether have 139 clinical beds, and the diagnostic centre which comprises an emergency clinic and day hospital, a communal and consultative outpatients' clinic functioning on a daily basis, through which some 300-350 patients pass every day, and diagnostic laboratories with a capacity of nearly 100 non-invasive and 20-30 invasive diagnostic procedures daily. The Clinic is a teaching base, and its doctors are educators of students at the Medical, Dental and Pharmacy Faculties, and also of students at the High School for Nurses and X-ray technicians, but also for those in Internal Medicine and especially Cardiology. The Clinic is also a base for scientific Masters' and post-doctoral studies, and such higher degrees are achieved not only by doctors who work here, but also by doctors from Medical Centres both in the country and abroad. Doctors working in this institution publish widely, not only a great number of books and monographs, but also original

  12. Universality of market superstatistics

    NASA Astrophysics Data System (ADS)

    Denys, Mateusz; Gubiec, Tomasz; Kutner, Ryszard; Jagielski, Maciej; Stanley, H. Eugene

    2016-10-01

    We use a key concept of the continuous-time random walk formalism, i.e., continuous and fluctuating interevent times in which mutual dependence is taken into account, to model market fluctuation data when traders experience excessive (or superthreshold) losses or excessive (or superthreshold) profits. We analytically derive a class of "superstatistics" that accurately model empirical market activity data supplied by Bogachev, Ludescher, Tsallis, and Bunde that exhibit transition thresholds. We measure the interevent times between excessive losses and excessive profits and use the mean interevent discrete (or step) time as a control variable to derive a universal description of empirical data collapse. Our dominant superstatistic value is a power-law corrected by the lower incomplete gamma function, which asymptotically tends toward robustness but initially gives an exponential. We find that the scaling shape exponent that drives our superstatistics subordinates itself and a "superscaling" configuration emerges. Thanks to the Weibull copula function, our approach reproduces the empirically proven dependence between successive interevent times. We also use the approach to calculate a dynamic risk function and hence the dynamic VaR, which is significant in financial risk analysis. Our results indicate that there is a functional (but not literal) balance between excessive profits and excessive losses that can be described using the same body of superstatistics but different calibration values and driving parameters. We also extend our original approach to cover empirical seismic activity data (e.g., given by Corral), the interevent times of which range from minutes to years. Superpositioned superstatistics is another class of superstatistics that protects power-law behavior both for short- and long-time behaviors. These behaviors describe well the collapse of seismic activity data and capture so-called volatility clustering phenomena.

  13. TIGER: the universal biosensor

    NASA Astrophysics Data System (ADS)

    Hofstadler, Steven A.; Sampath, Rangarajan; Blyn, Lawrence B.; Eshoo, Mark W.; Hall, Thomas A.; Jiang, Yun; Drader, Jared J.; Hannis, James C.; Sannes-Lowery, Kristin A.; Cummins, Lendell L.; Libby, Brian; Walcott, Demetrius J.; Schink, Amy; Massire, Christian; Ranken, Raymond; Gutierrez, Jose; Manalili, Sheri; Ivy, Cristina; Melton, Rachael; Levene, Harold; Barrett-Wilt, Greg; Li, Feng; Zapp, Vanessa; White, Neill; Samant, Vivek; McNeil, John A.; Knize, Duane; Robbins, David; Rudnick, Karl; Desai, Anjali; Moradi, Emily; Ecker, David J.

    2005-03-01

    In this work, we describe a strategy for the detection and characterization of microorganisms associated with a potential biological warfare attack or a natural outbreak of an emerging infectious disease. This approach, termed TIGER (Triangulation Identification for the Genetic Evaluation of Risks), relies on mass spectrometry-derived base composition signatures obtained from PCR amplification of broadly conserved regions of the microbial genome(s) in a sample. The sample can be derived from air filtration devices, clinical samples, or other sources. Core to this approach are "intelligent PCR primers" that target broadly conserved regions of microbial genomes that flank variable regions. This approach requires that high-performance mass measurements be made on PCR products in the 80-140 bp size range in a high-throughput, robust modality. As will be demonstrated, the concept is equally applicable to bacteria and viruses and could be further applied to fungi and protozoa. In addition to describing the fundamental strategy of this approach, several specific examples of TIGER are presented that illustrate the impact this approach could have on the way biological weapons attacks are detected and the way that the etiologies of infectious diseases are determined. The first example illustrates how any bacterial species might be identified, using Bacillus anthracis as the test agent. The second example demonstrates how DNA-genome viruses are identified using five members of Poxviridae family, whose members includes Variola virus, the agent responsible for smallpox. The third example demonstrates how RNA-genome viruses are identified using the Alphaviruses (VEE, WEE, and EEE) as representative examples. These examples illustrate how the TIGER technology can be applied to create a universal identification strategy for all pathogens, including those that infect humans, livestock, and plants.

  14. Kennedy at Rice University

    NASA Technical Reports Server (NTRS)

    1962-01-01

    President Kennedy speaks before a crowd of 35,000 people at Rice University in the football field. The following are excerpts from his speech. ' ...We set sail on his new sea because there is a new knowledge to begained, and new rights to be won, and they must be won and used for the progress of all people. Whether it will become a force for good or ill depends on man, and only if the United States occupies a position of pre-eminence can we help decide whether this new ocean will be a sea of peace or a new terrifying theater of war. But I do say space can be explored and mastered without feeding the fires of war, without repeating the mistakes that man has made with extending his wirt around this globe of ours. There is no strife, no prejudice, no national conflict in outer space as yet. Its conquest deserves the best of all mankind, and its opportunity for peaceful cooperation may never come again. But why, some say the Moon? Why choose this as our goal? And they may well ask, why climb the highest mountain? Why 35 years ago why fly the Atlantic? Why does Rice play Texas? We choose to go to the Moon, we choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one in which we attend to win, and the others , too.'

  15. Kennedy at Rice University

    NASA Technical Reports Server (NTRS)

    1962-01-01

    President Kennedy speaks before a crowd of 35,000 people at Rice University in the football field. The following are excerpts from his speech. ' ...We set sail on his new sea because there is a new knowledge to be gained, and new rights to be won, and they must be won and used for the progress of all people. ...Whether it will become a force for good or ill depends on man, and only if the United States occupies a position of pre-eminence can we help decide whether this new ocean will be a sea of peace or a new terrifying theater of war. But I do say space can be explored and mastered without feeding the fires of war, without repeating the mistakes that man has made with extending his writ around this globe of ours. ...There is no strife, no prejudice, no national conflict in outer space as yet. Its conquest deserves the best of all mankind, and its opportunity for peaceful cooperation may never come again. But why, some say the Moon? Why choose this as our goal? And they may well ask, why climb the highest mountian? Why - 35 years ago - why fly the Atlantic? Why does Rice play Texas? We choose to go to the Moon, we choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one in which we intend to win, and the others too.'

  16. PREFACE: The Quantum Universe

    NASA Astrophysics Data System (ADS)

    Adler, Stephen L.; Bassi, Angelo; Dowker, Fay; Dürr, Detlef

    2007-03-01

    This special issue of Journal of Physics A: Mathematical and Theoretical entitled 'The Quantum Universe' is dedicated to Professor Giancarlo Ghirardi on the occasion of his 70th birthday. Giancarlo Ghirardi has made many important contributions to the foundations of quantum mechanics including the celebrated Ghirardi Rimini Weber (GRW) model of spontaneous wavefunction collapse. However, although Professor Ghirardi's birthday is the inspiration for this issue, it has a much broader scope than the area traditionally known as Foundations of Quantum Mechanics. All invited authors are experts in areas of physics in which quantum theory is fundamental: non relativistic quantum mechanics, quantum computation and information, quantum field theory, quantum gravity, quantum cosmology and philosophy of science. The issue was conceived as an opportunity for workers in these diverse areas to share with the widest possible readership their views on quantum theory. Authors were encouraged to give their personal assessment of the role of quantum theory in their work particularly as it pertains to a vision of the global aims of their research. The articles are accessible to any physicist with a solid knowledge of quantum mechanics, and many contain an emphasis on conceptual developments, both those achieved and those hoped for. One theme that runs throughout Giancarlo Ghirardi's contributions to science is the unity of physics: the development of the GRW model itself was motivated by the conviction that the same physics should govern microscopic and macroscopic systems. However, readers of this special issue will clearly see that there is no unity as yet in the views of workers on fundamental quantum theories. Indeed the diversity of the articles, ranging from technical developments in well defined approaches, to new proposals for interpretations of quantum mechanics, indicates the state of fundamental physics: healthily active and yet lacking the consensus we seek in science

  17. University cardiology clinic.

    PubMed

    Borozanov, V

    2013-01-01

    In distant 1972, within framework of the Internal Clinic, a cardiologic department was organized which was soon, on 29.XII.1974, transformed into the Cardiology Clinic, later the Institute for Heart Diseases, and in 2008 was renamed the University Cardiology Clinic. The greater part of its foundation was possible owing to Prof. Dimitar Arsov and Prof. Radovan Percinkovski, who was the clinic's first director in the period from 1974 to 1984. In 1985, the Clinic moved into its own new building, and in that way was physically detached from the Internal Clinics. Until its move to the new building, the Clinic functioned in the Internal Clinics building, organized as an outpatient polyclinic and inpatient infirmary department with clinical beds, a coronary intensive care unit and a haemodynamics laboratory equipped with the most modern equipment of that time. Today the Clinic functions through two integral divisions: an inpatient infirmary department which comprises an intensive coronary care unit and fourteen wards which altogether have 139 clinical beds, and the diagnostic centre which comprises an emergency clinic and day hospital, a communal and consultative outpatients' clinic functioning on a daily basis, through which some 300-350 patients pass every day, and diagnostic laboratories with a capacity of nearly 100 non-invasive and 20-30 invasive diagnostic procedures daily. The Clinic is a teaching base, and its doctors are educators of students at the Medical, Dental and Pharmacy Faculties, and also of students at the High School for Nurses and X-ray technicians, but also for those in Internal Medicine and especially Cardiology. The Clinic is also a base for scientific Masters' and post-doctoral studies, and such higher degrees are achieved not only by doctors who work here, but also by doctors from Medical Centres both in the country and abroad. Doctors working in this institution publish widely, not only a great number of books and monographs, but also original

  18. Soldier universal robot controller

    NASA Astrophysics Data System (ADS)

    Hyams, Jeffrey; Batavia, Parag; Liao, Elizabeth; Somerville, Andrew

    2008-04-01

    The Soldier Universal Robot Controller (SURC) is a modular OCU designed for simultaneous control of heterogeneous unmanned vehicles. It has a well defined, published API., defined using XML schemas, that allows other potential users of the system to develop their own modules for rapid integration with SURC. The SURC architecture is broken down into three layers: User Interface, Core Functions, and Transport. The User Interface layer is the front end module which provides the human computer interface for user control of robots. The Core layer is further divided into the following modules: Capabilities, Tactical, Mobility, and World Model. The Capabilities module keeps track of the known robots and provides a list of specifications and services. The Mobility module provides path planning via D*, while the Tactical module provides higher level mission planning (multi-agent/multi-mission) capabilities for collaborative operations. The World Model module is a relational database which stores world model objects. Finally, a Transport module provides translation from the SURC architecture to the robot specific messaging protocols (such as JAUS). This allows fast integration of new robot protocols into an existing SURC implementation to enable a new system to rapidly leverage existing SURC capabilities. The communication between different modules within the SURC architecture is done via XML. This gives developers and users the flexibility to extend existing messages without breaking backwards compatibility. The modularity of SURC offers users and developers alike the capability to create custom modules and plug them into place, as long as they follow the pre defined messaging API for that module.

  19. 76 FR 69318 - In the Matter of the Designation of Mali Khan also known as Madi Khan as a Specially Designated...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE In the... Order. This notice shall be published in the Federal Register. Dated: October 24, 2011. Hillary Rodham Clinton, Secretary of State. BILLING CODE 4710-10-P...

  20. The University for Older Adults: On Cuba's Universalization of the University

    ERIC Educational Resources Information Center

    Rangel, Clara Lig Long; Proenza, Antonia Zenaida Sanchez

    2006-01-01

    In this study we focus on a new program in Cuba, university studies for older adults or seniors. Specifically, we look at the Special Municipality of the Isla de la Juventud (Isle of Youth) in the context of the larger policy of "universalization of higher education." We provide information about Cuban perspectives on adult education, discuss the…

  1. Acceleration of black hole universe

    NASA Astrophysics Data System (ADS)

    Zhang, T. X.; Frederick, C.

    2014-01-01

    Recently, Zhang slightly modified the standard big bang theory and developed a new cosmological model called black hole universe, which is consistent with Mach's principle, governed by Einstein's general theory of relativity, and able to explain all observations of the universe. Previous studies accounted for the origin, structure, evolution, expansion, and cosmic microwave background radiation of the black hole universe, which grew from a star-like black hole with several solar masses through a supermassive black hole with billions of solar masses to the present state with hundred billion-trillions of solar masses by accreting ambient matter and merging with other black holes. This paper investigates acceleration of the black hole universe and provides an alternative explanation for the redshift and luminosity distance measurements of type Ia supernovae. The results indicate that the black hole universe accelerates its expansion when it accretes the ambient matter in an increasing rate. In other words, i.e., when the second-order derivative of the mass of the black hole universe with respect to the time is positive . For a constant deceleration parameter , we can perfectly explain the type Ia supernova measurements with the reduced chi-square to be very close to unity, χ red˜1.0012. The expansion and acceleration of black hole universe are driven by external energy.

  2. Astrobiology and the Biological Universe

    NASA Astrophysics Data System (ADS)

    Dick, S. J.

    2002-12-01

    Four hundred years ago two astronomical world views hung in the balance: the geocentric and the heliocentric. Today astronomy faces a similar choice between two grand world views: a purely physical universe, in which cosmic evolution commonly ends in planets, stars and galaxies, and a biological universe, in which cosmic evolution routinely results in life, mind and intelligence. Astrobiology is the science providing the data to make this critical choice. This 20th century overview shows how we have arrived at the view that cosmic evolution may have resulted in life and intelligence in the universe. It examines how our astronomical world view has changed over the last century, recalls the opinions of astronomical pioneers like Russell, Shapley, and Struve on life in the universe, and shows how planetary science, planetary systems science, origins of life studies and SETI have combined to form a new discipline. Astrobiology now commands \\$50 million in direct funding from NASA, funds 15 Astrobiology Institute members around the country and four affiliates around the world, and seeks to answer one of astronomy's oldest questions. Whether we live in a mostly physical universe, as exemplified in Isaac Asimov's Foundation series, or in a biological universe, as portrayed in Arthur C. Clarke's works, this reality will have profound consequences, no less than the Copernican theory. Astrobiology also looks to the future of life; taking a long-term ``Stapledonian" view, it is possible we may live in a postbiological universe.

  3. Computational capacity of the universe.

    PubMed

    Lloyd, Seth

    2002-06-10

    All physical systems register and process information. The laws of physics determine the amount of information that a physical system can register (number of bits) and the number of elementary logic operations that a system can perform (number of ops). The Universe is a physical system. The amount of information that the Universe can register and the number of elementary operations that it can have performed over its history are calculated. The Universe can have performed 10(120) ops on 10(90) bits ( 10(120) bits including gravitational degrees of freedom).

  4. The role of the university.

    PubMed

    Starck, P L

    1987-01-01

    The role of the university, and particularly the health sciences university, in promoting positive health for women is twofold. First, the dissemination of existing knowledge raises awareness of special health needs and identifies gaps in the present research and literature base. Second, universities must project future needs of women in a rapidly changing society where such things as space travel may become commonplace. Reduction of the risk of debilitating disease and promotion of positive attitudes will enhance the quality of life for women. A logotherapeutic approach to choosing one's own attitudes toward life's challenges promotes successful coping in a dynamic society.

  5. Visualizing the universe, part 1

    NASA Technical Reports Server (NTRS)

    Geller, M. J.; Huchra, J. P.

    1992-01-01

    These decades are the first in which we can begin to map the universe. Recent surveys reveal patterns in the distribution of galaxies -- patterns coherent on scales of 150 million light years or more. These patterns contrast with the smoothness of the radiation background measured by the COBE satellite. Together these observations challenge our understanding of the origin of galaxies and large-scale structure in the universe. 'Visualizing the universe' is crucial for exploring the 3-dimensional maps, for analyzing them, for comparing the data with simulations, for designing instruments to make deeper maps with new large telescopes, and for sharing the excitement of discovery with the public.

  6. Female physicists in Ugandan universities

    NASA Astrophysics Data System (ADS)

    D'ujanga, Florence M.; Ssentongo, Grace Spencer; Ayugi, Gertrude; Akoba, Rashida; Saphina, Biira

    2015-12-01

    For a long time, only one public university in Uganda had a department of physics. Several women graduated from this department, but not many showed much interest in pursuing higher degrees in physics. Currently, there are five public universities in Uganda with departments of physics, and there has been an increase in the number of female graduates in physics. At the same time, the number of women pursuing higher degrees in physics has increased, and the universities have registered an increase in female physics lecturers.

  7. The role of the university.

    PubMed Central

    Starck, P L

    1987-01-01

    The role of the university, and particularly the health sciences university, in promoting positive health for women is twofold. First, the dissemination of existing knowledge raises awareness of special health needs and identifies gaps in the present research and literature base. Second, universities must project future needs of women in a rapidly changing society where such things as space travel may become commonplace. Reduction of the risk of debilitating disease and promotion of positive attitudes will enhance the quality of life for women. A logotherapeutic approach to choosing one's own attitudes toward life's challenges promotes successful coping in a dynamic society. PMID:3120225

  8. Can the Universe be "tilted"?

    NASA Astrophysics Data System (ADS)

    La, Daile

    1992-03-01

    We investigated the "tilting" of the universe, i.e., a non-Doppler origin of the dipole moment of the cosmic background radiation(CBR). Superhorizon-sized isocurvature, rotational and true vaccuum bubble perturbations are considered. We show that the more natural way of the "tilting" the Universe is via the true vaccuum buble perturbation. Neverthless, due to the small filling fraction of the bubbles of viable extended inflationary models, we find that the probability of the real occurence in the universe is quite insignificant.

  9. An International Student's Guide to Mexican Universities.

    ERIC Educational Resources Information Center

    Adelman, Alan, Ed.; Salazar, Sylvia Ortega, Ed.

    This guide for students interested in studying at Mexican universities covers 50 universities including all state universities, the National University of Mexico, as well as a representative selection of the leading private universities. Introductory material provides a brief history of Mexico, a discussion of differences from and similarities to…

  10. Teacher Education Program Reviews at University of North Florida, Florida State University, Florida Atlantic University, University of South Florida, March 1994-April 1995.

    ERIC Educational Resources Information Center

    England, David A.

    This report offers the review of four joint teacher education reviews conducted in the Florida State University System (SUS). Institutions reviewed are: University of North Florida (UNF), Florida State University (FSU), Florida Atlantic University (FAU), and the University of South Florida (USF). Joint teams were composed of the National Council…

  11. The Pragmatic University: A Feasible Utopia?

    ERIC Educational Resources Information Center

    Badley, Graham

    2016-01-01

    "Imaginings" of the modern university include such ideas as "the ecological university" and "the pragmatic university". In his attempt to separate utopian from dystopian visions of the university, Ronald Barnett concentrates on an analysis of the ecological university and ignores, for example, the case of the…

  12. Report of the Commission on University Purpose.

    ERIC Educational Resources Information Center

    Alberta Univ., Edmonton. The Senate.

    A report of the Commission on University Purpose of The University of Alberta, Canada, is presented. Based on the perceptions of the various publics, the Commission sought to clarify the purposes and functions of the university. After an introductory section on the historical development of universities and The University of Alberta, changing…

  13. Universal planetary tectonics (supertectonics)

    NASA Astrophysics Data System (ADS)

    Kochemasov, G. G.

    2009-04-01

    Universal planetary tectonics (supertectonics) G. Kochemasov IGEM of the Russian Academy of Sciences, Moscow, Russia, kochem.36@mail.ru The wave planetology [1-3 & others] proceeds from the following: "planetary structures are made by orbits and rotations". A uniform reason makes uniform structures. Inertia-gravity waves arising in planetary bodies due to their movements in Keplerian elliptical orbits with periodically changing accelerations warp these bodies in such way that they acquire polyhedron shapes (after interference of standing waves of four directions). Strong Newtonian gravity makes bodies larger than ~400 to 500 km in diameter globular and polyhedra are rarely seen. Only geomorphologic, geologic and geophysical mapping can develop these hidden structures. But small bodies, normally less than ~ 300 to 400 km in diameter, often show parts of the polyhedra, rarely fully developed forms (the asteroid Steins and satellite Amalthea present rather perfect forms of "diamond"). Depending on warping wavelengths (they make harmonics) various Plato's figures superimposed on each other can be distinguished. The fundamental wave 1 produces a tetrahedron, intrinsically dichotomic figure in which a vertex (contraction) always is opposed to a face (expansion). From the recent examples the best is the saturnian northern hexagon (a face) opposed to the southern hurricane (a vertex). The first overtone wave 2 is responsible for creation of structural octahedra. Whole ‘diamonds" and their parts are known [4, 5]. Other overtones produce less developed (because of smaller wave amplitudes) planetary shapes complicating main forms. Thus, the first common structural peculiarity of planetary bodies is their polyhedron nature. Not less important is the second common structural peculiarity. As all globular or smaller more or less isometric bodies rotate, they have an angular momentum. It is inevitably different in tropic and extra-tropic belts having uneven radii or distances to

  14. Emergent Universe with Particle Production

    NASA Astrophysics Data System (ADS)

    Gangopadhyay, Sunandan; Saha, Anirban; Mukherjee, S.

    2016-06-01

    The possibility of an emergent universe solution to Einstein's field equations allowing for an irreversible creation of matter at the expense of the gravitational field is shown. With the universe being chosen as spatially flat FRW spacetime together with equation of state proposed in Mukherjee et al. (Class. Quant. Grav. 23, 6927, 2006), the solution exists when the ratio of the phenomenological matter creation rate to the number density times the Hubble parameter is a number β of the order of unity and independent of time. The thermodynamic behaviour is also determined for this solution. Interestingly, we also find that an emergent universe scenario is present with usual equation of state in cosmology when the matter creation rate is chosen to be a constant. More general class of emergent universe solutions are also discussed.

  15. Imagine the Universe!. Version 2

    NASA Technical Reports Server (NTRS)

    Whitlock, Laura A.; Bene, Meredith; Cliffe, J. Allie; Lochner, James C.

    1998-01-01

    Imagine the Universe! gives students, teachers, and the general public a window on how high-energy astrophysics is used to probe the structure and evolution of the Universe. This is the universe as revealed by X-rays, gamma-rays and cosmic rays. Information about this exciting branch of astronomy is available in Imagine the Universe! at a variety of reading levels, and is illustrated with on-line graphics, animations, and movies. Information is presented on topics ranging from the Sun to black holes to X-ray and gamma-ray satellites. Imagine! also features a Teacher's Corner with study guides, lesson plans, and information on other education resources. Further descriptions of features of the Imagine! site and the other sites included on the CD-ROM may be found in sections V and VI of the booklet file.

  16. Flinders University Electric Vehicle Project

    ERIC Educational Resources Information Center

    Atkinson, D. A.

    1973-01-01

    Outlines the specifications and principles involved in the operation of an electric car developed by the Institute of Solar and Electochemical Energy Conversion at Flinders University in South Australia. (JR)

  17. Microteaching at a Distance University.

    ERIC Educational Resources Information Center

    Yule, Ronald M.

    1981-01-01

    Describes the use of microteaching at a distance university as an evaluation method in teacher training. Problems of working with students using this technique are discussed, and possible solutions are suggested. Included are 10 references. (Author/BK)

  18. The TR University Research Scorecard.

    ERIC Educational Resources Information Center

    Zacks, Rebecca

    2000-01-01

    Presents a ranking of the top United States universities in their quest for intellectual property, commercial partners, and profits. Bases rankings on a consideration of patent numbers, patent quality, and licensing revenues. (WRM)

  19. Beyond Divestment: The Moral University.

    ERIC Educational Resources Information Center

    Pifer, Alan

    1986-01-01

    Issues in university divestment of stock in American corporations doing business in South Africa, in protest of apartheid, are discussed in light of the American experience with discrimination. Divestment options are examined. (MSE)

  20. Emergent Universe with Particle Production

    NASA Astrophysics Data System (ADS)

    Gangopadhyay, Sunandan; Saha, Anirban; Mukherjee, S.

    2016-10-01

    The possibility of an emergent universe solution to Einstein's field equations allowing for an irreversible creation of matter at the expense of the gravitational field is shown. With the universe being chosen as spatially flat FRW spacetime together with equation of state proposed in Mukherjee et al. (Class. Quant. Grav. 23, 6927, 2006), the solution exists when the ratio of the phenomenological matter creation rate to the number density times the Hubble parameter is a number β of the order of unity and independent of time. The thermodynamic behaviour is also determined for this solution. Interestingly, we also find that an emergent universe scenario is present with usual equation of state in cosmology when the matter creation rate is chosen to be a constant. More general class of emergent universe solutions are also discussed.

  1. Astronomy in the Digital Universe

    NASA Astrophysics Data System (ADS)

    Haisch, Bernard M.; Lindblom, J.; Terzian, Y.

    2006-12-01

    The Digital Universe is an Internet project whose mission is to provide free, accurate, unbiased information covering all aspects of human knowledge, and to inspire humans to learn, make use of, and expand this knowledge. It is planned to be a decades long effort, inspired by the Encyclopedia Galactica concept popularized by Carl Sagan, and is being developed by the non-profit Digital Universe Foundation. A worldwide network of experts is responsible for selecting content featured within the Digital Universe. The first publicly available content is the Encyclopedia of Earth, a Boston University project headed by Prof. Cutler Cleveland, which will be part of the Earth Portal. The second major content area will be an analogous Encyclopedia of the Cosmos to be part of the Cosmos Portal. It is anticipated that this will evolve into a major resource for astronomy education. Authors and topic editors are now being recruited for the Encyclopedia of the Cosmos.

  2. British Telecom and Project Universe

    NASA Astrophysics Data System (ADS)

    Childs, G. H. L.; Morrow, G.

    1983-07-01

    Factors influencing the emergence of local area network (LANs) are covered along with British Telecom's involvement in Project Universe, an experiment to produce high-speed data links between several LANs in the United Kingdom with the Orbital Test Satellite (OTS). Other functions of Project Universe include measuring the network components performance, developing procedures for using the system for computer-computer and terminal-computer operations, and investigating the use of LAN satellites for business and computer communications. British Telecom has been involved with Project Universe since its inception. A standard Videotex system has been connected to the Cambridge Ring, consequently providing Videotex terminals attached to the ring access to a special Universe Prestel system. Future goals include replacing the OTS with a new satellite with a terminal operating at 8-10 Mbit/s. Block diagrams are provided.

  3. Neutrinos in the early universe

    NASA Astrophysics Data System (ADS)

    Kirilova, D.; Frere, J.-M.

    2012-12-01

    The neutrinos from the Big Bang or the Cosmic Neutrino Background (CNB) carry precious information from the early epoch when our universe was only 1 s old. Although not yet directly detected, CNB may be revealed indirectly through cosmological observations due to neutrino important cosmological influence. We review the cosmological role of neutrinos and the cosmological constraints on neutrino characteristics. Namely, we discuss the impact of neutrinos in the early universe: the cosmic expansion, neutrino decoupling, the role of neutrinos in the primordial production of light elements, leptogenesis, etc. We briefly discuss the role of neutrino at later stages of the universe. Due to the considerable cosmological influence of neutrinos, cosmological bounds on neutrino properties from observational data exist. We review the cosmological constraints on the effective number of neutrino species, neutrino mass and mixing parameters, lepton number of the universe, presence of sterile neutrino, etc.

  4. A Universe without Weak Interactions

    SciTech Connect

    Harnik, Roni; Kribs, Graham D.; Perez, Gilad

    2006-04-07

    A universe without weak interactions is constructed that undergoes big-bang nucleosynthesis, matter domination, structure formation, and star formation. The stars in this universe are able to burn for billions of years, synthesize elements up to iron, and undergo supernova explosions, dispersing heavy elements into the interstellar medium. These definitive claims are supported by a detailed analysis where this hypothetical ''Weakless Universe'' is matched to our Universe by simultaneously adjusting Standard Model and cosmological parameters. For instance, chemistry and nuclear physics are essentially unchanged. The apparent habitability of the Weakless Universe suggests that the anthropic principle does not determine the scale of electroweak breaking, or even require that it be smaller than the Planck scale, so long as technically natural parameters may be suitably adjusted. Whether the multi-parameter adjustment is realized or probable is dependent on the ultraviolet completion, such as the string landscape. Considering a similar analysis for the cosmological constant, however, we argue that no adjustments of other parameters are able to allow the cosmological constant to raise up even remotely close to the Planck scale while obtaining macroscopic structure. The fine-tuning problems associated with the electroweak breaking scale and the cosmological constant therefore appear to be qualitatively different from the perspective of obtaining a habitable universe.

  5. The New Universities: Activities, Space and Location

    ERIC Educational Resources Information Center

    Bullock, Nicholas; And Others

    1970-01-01

    The authors, members of a group that has been studying university planning since 1965, describe a mathematical, computerized model of university activities which they are now constructing, using data from the University of Reading. (JW)

  6. Medical Physics Undergraduate Degree Courses at University.

    ERIC Educational Resources Information Center

    Chadwick, Roy

    1989-01-01

    Described are the course, teaching/study, entry qualifications, and destination of graduates of four courses in medical physics from Exeter University, King's College London, University College London, and University College of Swansea. (YP)

  7. University Program Management Information System: NASA's University Program Active Projects

    NASA Technical Reports Server (NTRS)

    Gans, Gary (Technical Monitor)

    2003-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA's objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data. This report was prepared by the Office of Education/N.

  8. University Reactor Conversion Lessons Learned Workshop for Purdue University Reactor

    SciTech Connect

    Eric C. Woolstenhulme; Dana M. Hewit

    2008-09-01

    The Department of Energy’s Idaho National Laboratory, under its programmatic responsibility for managing the University Research Reactor Conversions, has completed the conversion of the reactor at Purdue University Reactor. With this work completed and in anticipation of other impending conversion projects, the INL convened and engaged the project participants in a structured discussion to capture the lessons learned. The lessons learned process has allowed us to capture gaps, opportunities, and good practices, drawing from the project team’s experiences. These lessons will be used to raise the standard of excellence, effectiveness, and efficiency in all future conversion projects.

  9. University Program Management Information System

    NASA Technical Reports Server (NTRS)

    Gans, Gary (Technical Monitor)

    2002-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA's objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well-being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data. This report was prepared by the Education Division/FE, Office of Human Resources and Education.

  10. University Program Management Information System

    NASA Technical Reports Server (NTRS)

    2001-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA' objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data.

  11. Interdimensional universality of dynamic interfaces.

    PubMed

    Kim, Kab-Jin; Lee, Jae-Chul; Ahn, Sung-Min; Lee, Kang-Soo; Lee, Chang-Won; Cho, Young Jin; Seo, Sunae; Shin, Kyung-Ho; Choe, Sug-Bong; Lee, Hyun-Woo

    2009-04-01

    Despite the complexity and diversity of nature, there exists universality in the form of critical scaling laws among various dissimilar systems and processes such as stock markets, earthquakes, crackling noise, lung inflation and vortices in superconductors. This universality is mainly independent of the microscopic details, depending only on the symmetry and dimension of the system. Exploring how universality is affected by the system dimensions is an important unresolved problem. Here we demonstrate experimentally that universality persists even at a dimensionality crossover in ferromagnetic nanowires. As the wire width decreases, the magnetic domain wall dynamics changes from elastic creep in two dimensions to a particle-like stochastic behaviour in one dimension. Applying finite-size scaling, we find that all our experimental data in one and two dimensions (including the crossover regime) collapse onto a single curve, signalling universality at the criticality transition. The crossover to the one-dimensional regime occurs at a few hundred nanometres, corresponding to the integration scale for modern nanodevices. PMID:19360082

  12. University Program Management Information System

    NASA Technical Reports Server (NTRS)

    Gans, Gary (Technical Monitor)

    2004-01-01

    As basic policy, NASA believes that colleges and universities should be encouraged to participate in the nation's space and aeronautics program to the maximum extent practicable. Indeed, universities are considered as partners with government and industry in the nation's aerospace program. NASA's objective is to have them bring their scientific, engineering, and social research competence to bear on aerospace problems and on the broader social, economic, and international implications of NASA's technical and scientific programs. It is expected that, in so doing, universities will strengthen both their research and their educational capabilities to contribute more effectively to the national well being. This annual report is one means of documenting the NASA-university relationship, frequently denoted, collectively, as NASA's University Program. This report is consistent with agency accounting records, as the data is obtained from NASA's Financial and Contractual Status (FACS) System, operated by the Financial Management Division and the Procurement Office. However, in accordance with interagency agreements, the orientation differs from that required for financial or procurement purposes. Any apparent discrepancies between this report and other NASA procurement or financial reports stem from the selection criteria for the data.

  13. Euclid and the Dark Universe

    NASA Astrophysics Data System (ADS)

    Mellier, Yannick

    2016-07-01

    The ESA Euclid mission aims to understand why the expansion of the Universe is accelerating and pin down the source responsible for the acceleration. It will uncover the very nature of dark energy and gravitation by measuring with exquisite accuracy the expansion rate of the Universe and the growth rate of structure formation in the Universe. To achieve its objectives Euclid will observe the distribution of dark matter in the Universe by measuring shapes of weakly distorted distant galaxies lensed by foreground cosmic structures with the VIS imaging instrument. In parallel, Euclid will analyse the clustering of galaxies and the distribution of clusters of galaxies by using spectroscopy and measuring redshifts of galaxies with the NISP photometer and spectrometer instrument. The Euclid mission will observe one third of the sky (15,000 deg2) to collect data on several billion galaxies spread over the last ten billion years. In this presentation I will report on the considerable technical and scientific progresses made since COSPAR 2014, on behalf of the Euclid Collaboration. The recent mission PDR that has been passed successfully shows that Euclid should meet its requirements and achieve its primary scientific objectives to map the dark universe. The most recent forecasts and constraints on dark energy, gravity, dark matter and inflation will be presented.

  14. Effective theories of universal theories

    DOE PAGES

    Wells, James D.; Zhang, Zhengkang

    2016-01-20

    It is well-known but sometimes overlooked that constraints on the oblique parameters (most notably S and T parameters) are generally speaking only applicable to a special class of new physics scenarios known as universal theories. The oblique parameters should not be associated with Wilson coefficients in a particular operator basis in the effective field theory (EFT) framework, unless restrictions have been imposed on the EFT so that it describes universal theories. Here, we work out these restrictions, and present a detailed EFT analysis of universal theories. We find that at the dimension-6 level, universal theories are completely characterized by 16more » parameters. They are conveniently chosen to be: 5 oblique parameters that agree with the commonly-adopted ones, 4 anomalous triple-gauge couplings, 3 rescaling factors for the h3, hff, hV V vertices, 3 parameters for hV V vertices absent in the Standard Model, and 1 four-fermion coupling of order yf2. Furthermore, all these parameters are defined in an unambiguous and basis-independent way, allowing for consistent constraints on the universal theories parameter space from precision electroweak and Higgs data.« less

  15. Factors Negatively Affecting University Adjustment from the Views of First-Year University Students: The Case of Mersin University

    ERIC Educational Resources Information Center

    Sevinç, Seda; Gizir, Cem Ali

    2014-01-01

    This qualitative case study aims to investigate the most common factors that negatively affect adjustment to university and coping strategies used by first-year university students in the adaptation process from the viewpoint of first-year university students. The participants were 25 first-year university students from various faculties at Mersin…

  16. Agreement between Oakland University and the Oakland University Chapter, American Association of University Professors, 1985-88.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Oakland University and the University's chapter (370 members) of the American Association of University Professors (AAUP) covering the period 1985-1988 is presented. Items covered in the agreement include: definitions and recognition of AAUP, academic titles, AAUP rights, university management,…

  17. 1988-91 Agreement between Oakland University and the Oakland University Chapter, American Association of University Professors.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    This document presents the 1988-91 agreement between Oakland University (Michigan) and the Oakland University Chapter of the American Association of University Professors. The following 32 articles are detailed: definitions; recognition; work of the bargaining unit; academic titles; association rights; University management; faculty employment,…

  18. Life in the Cosmic Context. An Astrobiology Course as an Experiment in Transdisciplinarity

    NASA Astrophysics Data System (ADS)

    Friaça, A. C. S.; Janot Pacheco, E.

    2014-10-01

    ``Life in the Cosmic Context" (AGA0316) is the astrobiology course offered by University of São Paulo to undergraduate students of science and humanities majors. The variety of background of the population attending AGA0316 and the broad scope of the addresssed issues makes this course a laboratory of transdisciplinarity.

  19. Tuning universality far from equilibrium

    PubMed Central

    Karl, Markus; Nowak, Boris; Gasenzer, Thomas

    2013-01-01

    Possible universal dynamics of a many-body system far from thermal equilibrium are explored. A focus is set on meta-stable non-thermal states exhibiting critical properties such as self-similarity and independence of the details of how the respective state has been reached. It is proposed that universal dynamics far from equilibrium can be tuned to exhibit a dynamical transition where these critical properties change qualitatively. This is demonstrated for the case of a superfluid two-component Bose gas exhibiting different types of long-lived but non-thermal critical order. Scaling exponents controlled by the ratio of experimentally tuneable coupling parameters offer themselves as natural smoking guns. The results shed light on the wealth of universal phenomena expected to exist in the far-from-equilibrium realm. PMID:23928853

  20. Supernovae and the Accelerating Universe

    NASA Technical Reports Server (NTRS)

    Wood, H. John

    2003-01-01

    Orbiting high above the turbulence of the earth's atmosphere, the Hubble Space Telescope (HST) has provided breathtaking views of astronomical objects never before seen in such detail. The steady diffraction-limited images allow this medium-size telescope to reach faint galaxies of 30th stellar magnitude. Some of these galaxies are seen as early as 2 billion years after the Big Bang in a 15 billion year old universe. Up until recently, astronomers assumed that all of the laws of physics and astronomy applied back then as they do today. Now, using the discovery that certain supernovae are standard candles, astronomers have found that the universe is expanding faster today than it was back then: the universe is accelerating in its expansion.