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1

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

ERIC Educational Resources Information Center

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…

Capper, Joanne; Nderitu, Shelomith; Ogula, Paul

2

Aga Khan Visual Archives  

NSDL National Science Digital Library

This site is the homepage for the excellent collection of textual and visual resources on Islamic architecture at MIT's Rotch Library. For internauts, the highlight of the site is the World-Wide Tour of Islamic Monuments, which contains 167 sample images from the collection. These are divided into religious architecture, organized alphabetically by country or architectural feature, and non-religious architecture, which includes residential buildings, bazaars, and street views. A thumbnail of each photo is provided for quicker downloading, and the full-size shots are of high quality. Users with a scholarly interest in Islamic architecture will also be very interested in the guides to the textual and visual materials (over 84,000 images) at the Rotch Library. Additional features at the site include links to images and information on Mosques in the US and a collection of links to other Islamic architecture sites.

1997-01-01

3

Khan Du Joe.  

National Technical Information Service (NTIS)

The video features Joe and others with learning disabilities. Having tagged himself as dumb, Joe feels alienated from classmates. Khan du encourages him to develop his abilities to compensate for his disabilities. Famous people who had learning disabiliti...

1994-01-01

4

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

PubMed Central

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.

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

5

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

PubMed

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. PMID:21061634

Zakharov, I A

2010-09-01

6

Genetic analysis of the roles of agaA, agaI, and agaS genes in the N-acetyl-D-galactosamine and D-galactosamine catabolic pathways in Escherichia coli strains O157:H7 and C  

PubMed Central

Background The catabolic pathways of N-acetyl-D-galactosamine (Aga) and D-galactosamine (Gam) in E. coli were proposed from bioinformatic analysis of the aga/gam regulon in E. coli K-12 and later from studies using E. coli C. Of the thirteen genes in this cluster, the roles of agaA, agaI, and agaS predicted to code for Aga-6-P-deacetylase, Gam-6-P deaminase/isomerase, and ketose-aldolase isomerase, respectively, have not been experimentally tested. Here we study their roles in Aga and Gam utilization in E. coli O157:H7 and in E. coli C. Results Knockout mutants in agaA, agaI, and agaS were constructed to test their roles in Aga and Gam utilization. Knockout mutants in the N-acetylglucosamine (GlcNAc) pathway genes nagA and nagB coding for GlcNAc-6-P deacetylase and glucosamine-6-P deaminase/isomerase, respectively, and double knockout mutants ?agaA ?nagA and ?agaI ?nagB were also constructed to investigate if there is any interplay of these enzymes between the Aga/Gam and the GlcNAc pathways. It is shown that Aga utilization was unaffected in ?agaA mutants but ?agaA ?nagA mutants were blocked in Aga and GlcNAc utilization. E. coli C ?nagA could not grow on GlcNAc but could grow when the aga/gam regulon was constitutively expressed. Complementation of ?agaA ?nagA mutants with either agaA or nagA resulted in growth on both Aga and GlcNAc. It was also found that ?agaI, ?nagB, and ?agaI ?nagB mutants were unaffected in utilization of Aga and Gam. Importantly, ?agaS mutants were blocked in Aga and Gam utilization. Expression analysis of relevant genes in these strains with different genetic backgrounds by real time RT-PCR supported these observations. Conclusions Aga utilization was not affected in ?agaA mutants because nagA was expressed and substituted for agaA. Complementation of ?agaA ?nagA mutants with either agaA or nagA also showed that both agaA and nagA can substitute for each other. The ?agaI, ?nagB, and ?agaI ?nagB mutants were not affected in Aga and Gam utilization indicating that neither agaI nor nagB is involved in the deamination and isomerization of Gam-6-P. We propose that agaS codes for Gam-6-P deaminase/isomerase in the Aga/Gam pathway.

2013-01-01

7

78 FR 48539 - Designation of Bahawal Khan, Also Known as Salahuddin Ayubi, Also Known as Bahwal Khan, as a...  

Federal Register 2010, 2011, 2012, 2013

...Designation of Bahawal Khan, Also Known as Salahuddin Ayubi, Also Known as Bahwal Khan, as a Specially Designated Global Terrorist Pursuant to Section 1(b) of Executive Order 13224, as Amended Acting under the authority of and in accordance with...

2013-08-08

8

Deep topographies in the fiction of Uzma Aslam Khan  

Microsoft Academic Search

This article examines the novels Trespassing (2003) and The Geometry of God (2008) by Pakistani author Uzma Aslam Khan, and specifically her deployment of a complex symbolic apparatus constructed from prehistory, geography and history. Drawing on the fossil?rich soil of northern Pakistan and the Arabian Sea coastline in the south, Khan delineates a deep topography for Pakistan as a source

Ananya Jahanara Kabir

2011-01-01

9

Can Khan Move the Bell Curve to the Right?  

ERIC Educational Resources Information Center

|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.…

Kronholz, June

2012-01-01

10

Can Khan Move the Bell Curve to the Right?  

ERIC Educational Resources Information Center

|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…

Kronholz, June

2012-01-01

11

Unraveling the A. Q. Khan and future proliferation networks  

Microsoft Academic Search

The Khan network has caused enormous damage to U.S. national security and international stability. Yet, the response has been insufficient, producing little confidence that other networks do not or will not exist or that elements of the Khan network will not reconstitute themselves.

David Albright; Corey Hinderstein

2005-01-01

12

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

ERIC Educational Resources Information Center

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…

Parslow, Graham R.

2012-01-01

13

Aqa Mohammad Khan and the establishment of the Qajar dynasty  

Microsoft Academic Search

A century and a half after his assassination the memory of the eunuch Shah of Iran, Aqa Mohammad Khan Qajar, continues to be execrated as one of the most brutal and bloodthirsty of Oriental rulers. Nevertheless, despite the gruesome tales associated with his name, Aqa Mohammad was a figure of very considerable importance in the history of Iran. He was

G. R. G. Hambly

1963-01-01

14

Boiler tube leakage acoustic localization base on AGA  

Microsoft Academic Search

Efficient and reliable operation is the main requirement of the modern power plant,hence it's significant that the boiler tube leakage source is localized precisely. The four-element acoustic array was exploited in the furnace and the schematic of sensors distributed for capture the leakage signal were given. A set of hyperbolic equations were established and Accelerating genetic algorithm (AGA) was proposed

Peng Wang; Liansuo An; Guoqing Shen; Jie Shi; Yongxing Lu

2010-01-01

15

Akram Khan rewrites Radha: The “hypervisible” cultural identity in Kylie Minogue's Showgirl  

Microsoft Academic Search

This paper attempts to analyze the British Asian dancer\\/choreographer Akram Khan's choreography of Samsara for Kylie Minogue's “homecoming” version of the 2006 Showgirl tour as an intellectual commentary on the 1906 American modern dance piece Radha by Ruth St Denis. On the surface Khan's choreography can be seen to reiterate some of the same Orientalist tropes that St Denis was

Royona Mitra

2009-01-01

16

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

NASA Astrophysics Data System (ADS)

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 there. Moreover, the late Paleozoic glacial conditions in Gondwana lands supported the large volume of clastic supply into the basin by intense weathering and erosion of vast exposed regions in Posht-e-Badam block. Also, tectonic activity along Kalmard basement fault mainly controlled local sea level changes and lithology of outcrops in the hinterlands. Therefore, interplay of these factors during lowstand of relative sea level, with lower accommodation space and higher gradient led to high rate of sediment input and distribution of siliciclastics in the base of each cycles. In contrast, relative sea level rises have been corresponded to the more accommodation space and reducing of siliciclastic entrance into the sedimentary basin that made a suitable condition for carbonate production. Therefore, during relative sea level rise, verities of carbonate-producing organisms tend to more rates of biogenic carbonate products and eventually formation of carbonate units upon the preexistence silisiclastics. Therefore, mixing of siliciclastics with carbonate deposits in Khan Formation have mainly been controlled temporally by sea level fluctuations due to local and/or eustatic sea level changes and spatially by variations in local tectonic activities and lateral facies mixing by longshore currents.

Shadan, Mahdi; Hosseini-Barzi, Mahboubeh

2010-05-01

17

Comparison of Natural Gas Storage Estimates from the EIA and AGA  

EIA Publications

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.

Information Center

1997-10-01

18

Hardware Integration of Parachute Guidance, Navigation, and Control for the Affordable Guided Airdrop System (AGAS).  

National Technical Information Service (NTIS)

This study is a continuation of a previous work concerning the Affordable Guided Airdrop System (AGAS), a parachute structure that integrates low-cost guidance and control into fielded cargo air delivery systems. This thesis sought to integrate the previo...

J. G. Johnson

2001-01-01

19

Securing DNP3 and Modbus with AGA12-2J  

Microsoft Academic Search

This paper describes the use of the American Gas Association AGA 12-2 Standard for the encryption of SCAD A communication messages. This encryption can be added as a wrapper layer to byte-oriented protocols such as DNP3 and Modbus and consequently can be applied to existing communication systems. AGA 12-2 complies with the upcoming IEEE 1689 and IEEE 1711 standards for

2008-01-01

20

Long-lost relations of Genghis Khan sought by London restaurant  

NSDL National Science Digital Library

The Legacy of Genghis Khan [Macromedia Flash Reader]http://www.lacma.org/khan/index_flash.htmModern Mongolia: Reclaiming Genghis Khanhttp://www.museum.upenn.edu/Mongolia/index.shtmlOfficial Website of the Government Organizations of Mongoliahttp://www.pmis.gov.mn/presi_eng.htmOxford Ancestorshttp://www.oxfordancestors.com/Shishhttp://www.shish.com/DNA testing has received great prominence in the international media as of late, largely due to its use in highly publicized courtroom battles and in unraveling the genealogical histories of numerous families of note. One London restaurant (which specializes in grilled kebabs) has taken this practice one step further by offering one free DNA test each day this week to determine whether any of patrons might in fact be related to the legendary Mongol ruler Genghis Khan. The firm doing the DNA testing, Oxford Ancestors, says up to 17 million men in Central Asia share a pattern of Y chromosomes that indicates a common ancestor in their shared familial past. Since there are no verified tissue samples from Genghis Khan, these genetic tests are based on an assessment of probabilities. The response thus far has been rather overwhelming, as Hugo Malik (a bar manager at the popular London eatery offering the tests) noted recently: "We've had Mongolian people who've traveled across London to give us their details. They said, 'Grandad always used to tell us we were descended from Genghis Khan.'"

21

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

ERIC Educational Resources Information Center

|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,…

Bongila, Jean-Pierre

2011-01-01

22

The Ripple Effects of Genghis Khan Barbecue Cuisine on Hokkaido's Economy  

Microsoft Academic Search

Under the recent conditions of fiscal deficit and sluggish economic growth, it is very important to devise methods to energize the economy without government funding. This paper considers the ripple effects in Hokkaido that would result from residents consuming an extra Genghis Khan (Mongolian mutton barbecue) meal per year, and outlines an effective example of the theory of comparative advantage.

Makoto OKAMURA

23

Benzene's toxicity: a consolidated short review of human and animal studies by HA Khan  

Microsoft Academic Search

Khan's review is a brief summary of the complex field of study revolving around bone marrow toxicity and leukemogenesis observed in people chronically exposed to benzene. These comments are intended to demonstrate the use of the Kahn review as a launching pad for an in-depth analysis of the several related areas that must be fully explored to understand benzene-related diseases.

R. Snyder

2007-01-01

24

Glacial regime of the highest Tien Shan mountain, Pobeda-Khan Tengry massif  

Microsoft Academic Search

Major processes controlling the existence of a large subcontinental glacier system were identified on the basis of glaciological , meteorological and isotopic analyses using expeditionary and long-term data. Observations occurred on the southern Inylchek glacier located in the Pobeda - Khan Tengry massif, the largest subcontinental glacier system in the northern periphery of central Asia. More than 1200 glaciers with

VLADIMIR B. AIZEN; ELENA M. AIZEN; JOHN M. MELACK; DAVID D. SEXTON; VICTOR N. NESTEROV

1997-01-01

25

Parents' Attitude toward Daughters' Education in Tribal Area of Dera Ghazi Khan (Pakistan)  

ERIC Educational Resources Information Center

|The paper aimed to investigate the parents' attitudes toward their daughters' education in tribal areas of district Dera Ghazi Khan (Pakistan). To achieve the objectives four research questions were established. Focus of the questions was to examine the significance of girls' education for tribal parents. Existing and expected role of tribal…

Buzdar, Muhammad Ayub; Ali, Akhtar

2011-01-01

26

Sayyid Ahmad Khan's Representations of Sufi Life of Shahjahanabad (Delhi)Asar al-Sanadid  

Microsoft Academic Search

The paper seeks to highlight Sayyid Ahmad Khan's representation of the religious life of the Mughal Delhi\\/Shahjahanabad during the first half of the nineteenth century as portrayed in Asar al-Sanadid the archaeological history of the city of Delhi. The work from the pen of one of the most articulate Muslim of nineteenth-century South Asia is not only about the buildings

Gulfishan Khan

2009-01-01

27

Cryptanalysis of Khan et al.'s dynamic ID-based remote user authentication scheme  

Microsoft Academic Search

Recently, Khan et al. showed that Wang et al.'s dynamic ID-based remote user authentication scheme is not feasible for real-life implementations such as without preserving anonymity of a user during authentication, user cannot choose the password he\\/she wants, no provision for revocation of lost or stolen smart card, and can not provide session key agreement. Consequently, an improved version of

Chun-Ta Li; Chen-Ju Liu; Cheng-Chi Lee; Chin-Wen Lee

2010-01-01

28

Application of AgaR repressor and dominant repressor variants for verification of a gene cluster involved in N-acetylgalactosamine metabolism in Escherichia coli K-12.  

PubMed

The agaZVWEFASYBCDI gene cluster encodes the phosphotransferase systems and enzymes responsible for the uptake and metabolism of N-acetylgalactosamine and galactosamine in Escherichia coli. In some strains of E. coli, particularly the common K-12 strain, a portion of this cluster is missing because of a site-specific recombination event that occurred between sites in agaW and agaA. Strains that have undergone this recombination event have lost the ability to utilize either N-acetylgalactosamine or galactosamine as sole sources of carbon. Divergently transcribed from this gene cluster is the gene agaR encoding a transcriptional repressor belonging to the DeoR/GlpR family of transcriptional regulators. Promoters upstream of agaR, agaZ and agaS were characterized. All three promoters had elevated activity in the presence of N-acetylgalactosamine or galactosamine, were regulated in vivo by AgaR and possessed specific DNA-binding sites for AgaR upstream from the start sites of transcription as determined by DNase I footprinting. In vivo analysis and DNase I footprinting indicated that the promoter specific for agaZ also requires activation by cAMP-CRP. Previous work with GlpR and other members of the DeoR/GlpR family have identified highly conserved amino acid residues that function in DNA-binding or response to inducer. These residues of AgaR were targeted for site-directed mutagenesis and yielded variants of AgaR that were either negatively dominant or non-inducible. The apparent ability to produce negatively dominant and non-inducible variants of proteins of the DeoR/GlpR family of currently unknown function will likely facilitate screening for function. PMID:14731281

Ray, W Keith; Larson, Timothy J

2004-02-01

29

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

PubMed Central

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.

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

30

Effect of different pre-sowing water application depths on wheat yield under spate irrigation in Dera Ismael Khan District of Pakistan  

Microsoft Academic Search

Spate irrigation is a method of flood water harvesting, practiced in Dera Ismael Khan (D.I. Khan), Pakistan for agricultural production for the last several hundred years in which during monsoon period flood water is used for irrigation before wheat sowing. A field study on the effect of different pre-sowing water application depths on the yield of wheat was conducted during

M. J. Khan; A. Razzaq; M. K. Khattak; L. Garcia

2009-01-01

31

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

PubMed

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. PMID:17961058

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

32

The German Working Group of Obesity in Childhood and Adolescence (AGA): Improving the Quality of Care for Overweight and Obese Children in Germany  

Microsoft Academic Search

SummaryThe Working Group of Obesity in Childhood and Adolescence (AGA) comprises scientists, clinicians, and therapists dealing with obesity in children and adolescents. More than 250 pediatricians, psychiatrics, dieticians, psychologists and sports therapists are integrated. On an international level, the AGA cooperates with the European Childhood Obesity Group and the International Obesity Taskforce (IOTF) for Childhood Obesity. The aims of the

Thomas Reinehr; Reinhard W. Holl; Martin Wabitsch

2008-01-01

33

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

NASA Astrophysics Data System (ADS)

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.

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

2009-07-01

34

Correction of the AGA NX-19 MOD Data-Processing System for Real Gas Factors of Type H Natural Gas.  

National Technical Information Service (NTIS)

The BR-KORR.3H calculating system describes the real gas behaviour of type H natural gases at pressures up to 90 bar and temperatures between -10 exp 0 C and 30 exp 0 C. The calculation system is in fact a correction formula for the existing AGA NX-19 mod...

M. Jaeschke B. Harbrink

1982-01-01

35

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

PubMed

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-?-(1,3)-d-galactose) that are ?-(1,4)-linked. Here we present the crystal structure of a glycoside hydrolase family 50 exo-?-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 ? resolution reveals a (?/?)8-barrel fold that is elaborated with a ?-sandwich domain and extensive loops. The structures of catalytically inactivated Aga50D in complex with non-hydrolyzed neoagarotetraose (2.05 ? resolution) and neoagarooctaose (2.30 ? resolution) provide views of Michaelis complexes for a ?-agarase. In these structures, the d-galactose residue in the -1 subsite is distorted into a (1)S3 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 ?-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

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

2013-08-06

36

Feeding tolerance of preterm infants appropriate for gestational age (AGA) as compared to those small for gestational age (SGA).  

PubMed

Abstract Preterm infants are often considered too unstable to be fed enterally so they are exposed to complications related to a prolonged enteral fasting. Our study aims to compare feeding tolerance of adequate for gestational age (AGA) versus small for gestational age (SGA) infants and to evaluate which perinatal factors affect feeding tolerance (measured as time to achieve full enteral feeding, FEF). Inborn infants with a gestational age (GA) less than 32 weeks, born from January 2006 to December 2010, were eligible for this study. We enrolled 310 infants. The time to FEF was longer for SGA infants than for AGA, while a longer GA was associated to a reduced time to FEF. A beneficial effect was observed for antenatal steroids, while Apgar score below 7, the administration of inotrops or caffeine, the occurrence of sepsis or NEC and the presence of PDA were associated to a longer time to FEF. When evaluated jointly with a multivariate analysis, GA (p?AGA and SGA. PMID:23131136

Bozzetti, Valentina; Paterlini, Giuseppe; Delorenzo, Paola; Meroni, Valeria; Gazzolo, Diego; Van Bel, Frank; Visser, Gerard Ha; Valsecchi, Maria Grazia; Tagliabue, Paolo E

2013-07-26

37

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

PubMed

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(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. PMID:23333738

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

2013-01-18

38

?-Galactosidase/Sucrose Kinase (AgaSK), a Novel Bifunctional Enzyme from the Human Microbiome Coupling Galactosidase and Kinase Activities*  

PubMed Central

?-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, ?-galactosidase/sucrose kinase (AgaSK). Sequence analysis showed that AgaSK is composed of two domains: one closely related to ?-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.

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

2011-01-01

39

Metabolic differences between AGA- and SGA-infants of very low birthweight. II. Relationship to protein intake.  

PubMed

The metabolic response to different levels of human milk protein intake was studied in 23 appropriate (AGA) and 19 small for gestational age (SGA) infants of very low birthweight (VLBW) on the eighth day of life. The infants received from birth, either fresh preterm human milk or human milk fortified with lyophilized human milk (6 g per 100 ml). Thus, the protein intake ranged from 1.98 to 3.28 g/kg/d in the AGA- and from 1.94 to 3.34 g/kg/d in the SGA-infants. Alpha-amino-nitrogen and bile acid concentrations in serum and total- as well as alpha-amino-nitrogen excretion in the urine were measured. When the protein intake was less than 2.5 g/kg/d no differences between the groups could be found in any of the parameters directly related to nitrogen metabolism, but a significantly higher concentration of bile acids in serum was found in the SGA-infants. On protein intakes of more than 2.5 g/kg/d the SGA-infants responded with higher alpha-amino-nitrogen as well as total bile acids concentrations in the serum and also with higher excretions of total- as well as alpha-amino-nitrogen in the urine when compared to the AGA-infants. The differences between the groups became more pronounced with an increasing protein intake. The data suggest that on the eighth day of life SGA-infants are more sensitive to an excessive protein intake than AGA-infants. Hepatocellular dysfunctions as a result of intrauterine growth retardation seems to be an important factor in this special metabolic situation. Bile acid concentration in the serum can be used as a good marker to detect this. The observed differences in the metabolic capacity to handle protein between AGA- and SGA-infants on the eighth day of life have to be considered in the nutritional management of VLBW-infants. PMID:3201970

Boehm, G; Senger, H; Müller, D; Beyreiss, K; Räihä, N C

1988-09-01

40

Reclassification of Koreibacter algae as a later heterotypic synonym of Paraoerskovia marina and emended descriptions of the genus Paraoerskovia Khan et al. 2009 and of Paraoerskovia marina Khan et al. 2009.  

PubMed

16S rRNA gene sequences deposited for the type strains of Paraoerskovia marina (CTT-37(T); GenBank accession no. AB445007) and Koreibacter algae (DSW-2(T); FM995611) show a similarity of 100 %. Consequently, the type strains were subjected to a polyphasic recharacterization under direct comparison in order to clarify their taxonomic position. PvuII RiboPrint patterns and quantitative ratios of cellular fatty acids revealed strain-specific differences between P. marina DSM 21750(T) ( = CTT-37(T)) and K. algae DSM 22126(T) ( = DSW-2(T)). The percentage of DNA-DNA binding of 94 % indicated that the two type strains belong to the same genomospecies. Agreement in the peptidoglycan structure and polar lipid pattern, highly similar fatty acid profiles and MALDI-TOF mass spectra, the ability to produce acid from the same carbon sources, corresponding enzymic activities and DNA G+C contents of 70.8 ± 0.3 mol%, in addition to the consistent characteristics reported in the original descriptions, support the view that the two strains should be affiliated to the same species. According to Rules 38 and 42 of the Bacteriological Code, Koreibacter algae should be reclassified as later heterotypic synonym of Paraoerskovia marina, and the descriptions of the genus Paraoerskovia Khan et al. 2009 and of Paraoerskovia marina Khan et al. 2009 are emended accordingly. PMID:22389283

Schumann, P; Pukall, R; Spröer, C; Stackebrandt, E

2012-03-02

41

Limited effectiveness of home drinking water purification efforts in Karachi, Pakistan  

Microsoft Academic Search

Objective: In many developing-country urban areas, municipally supplied water is not microbiologically safe. This study evaluated drinking water quality and effect of home water purification efforts in Karachi, Pakistan.Methods: Members of 300 households, including 100 households who used the Aga Khan University Hospital Laboratory and 200 of their neighbors were interviewed. In 293 consenting households, structured observations were performed and

Stephen E. Luby; Amber H. Syed; Naureen Atiullah; Mohammad K. Faizan; Susan Fisher-Hoch

2000-01-01

42

Moyamoya disease: A clinical spectrum, literature review and case series from a tertiary care hospital in Pakistan  

Microsoft Academic Search

BACKGROUND: Moyamoya is a rare cerebrovascular disease of unknown etiology. The data on moyamoya disease from Pakistan is sparse. We report a case series of 13 patients who presented with moyamoya disease to a tertiary care hospital in Pakistan with a national referral base. METHODS: We conducted a retrospective review of thirteen patients who presented to The Aga Khan University

Sana Shoukat; Ahmed Itrat; Ather M Taqui; Moazzam Zaidi; Ayeesha K Kamal

2009-01-01

43

Frequency and clinical spectrum of rare inherited coagulopathies--a tricenter study  

Microsoft Academic Search

OBJECTIVE: To determine the frequency of rare inherited coagulopathies at three centers of haematology in Karachi and to study the clinical spectrum and laboratory data of these coagulopathies.METHODS: This was a descriptive study conducted from September 2003 to December 2004 on subjects from Aga Khan University Hospital, Husaini Blood Bank and Fatimid Blood Transfusion Centre. All the subjects with bleeding

Safoorah Khalid; Fareena Bilwani; Salman Naseem Adil; Mohammad Khurshid

2008-01-01

44

Clinical profile and treatment of infantile spasms using vigabatrin and ACTH - a developing country perspective  

Microsoft Academic Search

BACKGROUND: Infantile spasms represent a serious epileptic syndrome that occurs in the early infantile age. ACTH and Vigabatrin are actively investigated drugs in its treatment. This study describes the comparison of their efficacy in a large series of patients with infantile spasms from Pakistan. METHODS: All patients with infantile spasms who presented to Aga Khan University Hospital, Karachi, Pakistan from

Shahnaz Ibrahim; Shamshad Gulab; Sidra Ishaque; Taimur Saleem

2010-01-01

45

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

ERIC Educational Resources Information Center

|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),…

Halai, Nelofer

2012-01-01

46

Impact of age and drug resistance on mortality in typhoid fever  

Microsoft Academic Search

The risk factors for mortality were analysed in a consecutive group of 1158 children presenting to the Aga Khan University Medical Center, Karachi, with multidrug resistant typhoid fever that had been proved on culture. There were 19 deaths, representing an overall case fatality rate of 1.6%. Multidrug resistant typhoid was associated with a more severe clinical illness and higher rates

Z A Bhutta

1996-01-01

47

Crystal chemistry of elpidite from Khan Bogdo (Mongolia) and its K- and Rb-exchanged forms  

SciTech Connect

Elpidite Na{sub 2}ZrSi{sub 6}O{sub 15} {center_dot} 3H{sub 2}O [space group Pbcm, a = 7.1312(12), b = 14.6853(12), and c = 14.6349(15) Angstrom-Sign ] from Khan Bogdo (Mongolia) and its K- and Rb-exchanged forms K{sub 1.78}Na{sub 0.16}H{sub 0.06}ZrSi{sub 6}O{sub 15} {center_dot} 0.85H{sub 2}O [Cmce, a = 14.054(3), b = 14.308(3), and c = 14.553(3) Angstrom-Sign ] and Na{sub 1.58}Rb{sub 0.2}H{sub 0.22}ZrSi{sub 6}O{sub 15} {center_dot} 2.69H{sub 2}O [Pbcm, a = 7.1280(10), b = 14.644(3), and c = 14.642(3) Angstrom-Sign ] that were obtained by cation exchange at 90 Degree-Sign C, as well as K{sub 1.84}Na{sub 0.11}H{sub 0.05}ZrSi{sub 6}O{sub 15} {center_dot} 0.91H{sub 2}O [Cmce, a = 14.037(3), b = 14.226(3), and c = 14.552(3) Angstrom-Sign ] and Rb{sub 1.78}Na{sub 0.06}H{sub 0.16}ZrSi{sub 6}O{sub 15} {center_dot} 0.90H{sub 2}O [Cmce, a = 14.2999(12), b = 14.4408(15), and c = 14.7690(12) Angstrom-Sign ], obtained at 150 Degree-Sign C are studied by single-crystal X-ray diffraction and IR spectroscopy. The base of the structures is a heteropolyhedral Zr-Si-O framework whose cavities accommodate Na (K, Rb) cations and H{sub 2}O molecules.

Grigor'eva, A. A.; Zubkova, N. V., E-mail: nata_zubkova@rambler.ru; Pekov, I. V. [Moscow State University, Faculty of Geology (Russian Federation); Kolitsch, U. [Museum of Natural History of Vienna, Department of Mineralogy and Petrography (Austria); Pushcharovsky, D. Yu.; Vigasina, M. F. [Moscow State University, Faculty of Geology (Russian Federation); Giester, G.; Dordevic, T.; Tillmanns, E. [University of Vienna, Institute of Mineralogy and Crystallography (Austria); Chukanov, N. V. [Russian Academy of Sciences, Institute of Problems of Chemical Physics (Russian Federation)

2011-09-15

48

Intrauterine insemination: pregnancy rate and its associated factors in a university hospital in Iran  

Microsoft Academic Search

Objective: To determine pregnancy rate and its associated factors in Intrauterine Insemination (IUI) in a University ART center in Tehran, Iran. Materials and Methods: A retrospective descriptive study was conducted on all available records of infertile patients (200 cases) who had undergone IUI treatment for their infertility problems in Mirza Koochak Khan ART center, between 1999 and 2000. The necessary

Zahra Rezaie; Ozra Azmodeh; M. D. Neda; Heydari Hamadani

49

The structure analysis of Humanin analog, AGA-(C8R)HNG17, by circular dichroism and sedimentation equilibrium: comparison with the parent molecule.  

PubMed

A 24-amino acid peptide, Humanin (HN), is a novel peptide that protects neuronal cells in vitro and in vivo from Alzheimer's disease-related toxicities. We have shown before that the structures of HN and a 1000-fold more active analog, HNG, with a Ser14Gly mutation are largely disordered. During additional mutational analysis, a shorter 17-amino acid form, AGA-(C8R)HNG17, was accidentally discovered to have a 100-fold higher activity than HNG. Here we have characterized the structural properties of the AGA-(C8R)HNG17 analog by circular dichroism (CD) and sedimentation equilibrium analysis. First, the structure in water was characterized, since these peptides have been dissolved in water prior to biological analysis. The AGA-(C8R)HNG17 peptide exhibited extensive beta-sheet structure in water, completely different from the aqueous HN and HNG structures. The beta-sheet structure was converted to a disordered structure upon dilution into phosphate-buffered saline (PBS) at low peptide concentration (e.g., below 0.2mg/ml), which was similar to the structure of HN and HNG, observed under similar conditions. Sedimentation equilibrium analysis showed that the AGA-(C8R)HNG17 analog was essentially monomeric in PBS, while HNG showed extensive aggregation. Such aggregation of HNG was observed when the peptide was added to the serum-containing cell culture media. Thus, the mutations introduced into the AGA-(C8R)HNG17 analog generated a peptide different from the parent HNG and HN peptides in the self-association properties and hence the solubility, which most likely contributed to the increased biological activity of the AGA-(C8R)HNG17 analog. PMID:18456318

Arisaka, Fumio; Niikura, Takako; Arakawa, Tsutomu; Kita, Yoshiko

2008-04-01

50

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

PubMed

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. PMID:23079611

Matiullah; Malik, Fariha; Rafique, Muhammad

2012-10-18

51

DATING THE TAVAN TOLGOI SITE, MONGOLIA: BURIALS OF THE NOBILITY FROM GENGHIS KHAN'S ERA  

Microsoft Academic Search

The Tavan Tolgoi (Five Holy Hills) site, located in Ongon sum, Sukhbaatar aimag, in southeastern Mongolia, consists of about 20 burials. During the preliminary 2004 excavations conducted by the Department of Anthropology and Archaeology, National University of Mongolia, 7 graves were unearthed. In grave 1 (2004), the skeleton of a woman 40 yr old, wearing golden rings with the inscription

M Youn; J C Kim; H K Kim; M Erdene

2007-01-01

52

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

PubMed

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. PMID:15031006

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

2004-06-01

53

The structure analysis of Humanin analog, AGA(C8R)HNG17, by circular dichroism and sedimentation equilibrium: Comparison with the parent molecule  

Microsoft Academic Search

A 24-amino acid peptide, Humanin (HN), is a novel peptide that protects neuronal cells in vitro and in vivo from Alzheimer's disease-related toxicities. We have shown before that the structures of HN and a 1000-fold more active analog, HNG, with a Ser14Gly mutation are largely disordered. During additional mutational analysis, a shorter 17-amino acid form, AGA-(C8R)HNG17, was accidentally discovered to

Fumio Arisaka; Takako Niikura; Tsutomu Arakawa; Yoshiko Kita

2008-01-01

54

Effect of Deltamethrin Treatment on Lepidopteran Larvae Infected with Baculoviruses Expressing Insect-Selective Toxins ?-Aga-IV, As II, or Sh 1  

Microsoft Academic Search

Modification of sodium channels by pyrethroids is promoted by channel opening. The insect-specific neurotoxins ?-Aga-IV from the spiderAgelenopsis aperta,As II from the sea anemoneAnemonia sulcata,and Sh I from the sea anemoneStichadactyla helianthusall increase sodium channel opening and so we tested each of them in combination with deltamethrin for synergistic insecticidal activity. We found that As II increased the insecticidal activity

Holly J. R. Popham; Grigori G. Prikhod'ko; Thomas J. Felcetto; Dan A. Ostlind; Jeffrey W. Warmke; Charles J. Cohen; Lois K. Miller

1998-01-01

55

The Math of Khan  

ERIC Educational Resources Information Center

|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…

Schaffhauser, Dian

2013-01-01

56

Khan Du Jean.  

National Technical Information Service (NTIS)

The video features Jean, who, along with Connie, has an eyesight disability. Jean is visually impaired and Connie is blind. Clever camera work creates an illusion of viewing the world as a partially sighted person. The video helps young people understand ...

1994-01-01

57

Deliberate Self-Harm: Characteristics of Patients Presenting to a Tertiary Care Hospital in Karachi, Pakistan  

Microsoft Academic Search

Introduction: Previous deliberate self-harm (DSH) is the strongest predictor of suicide. Although several studies exist in other countries, characteristics of DSH have not been well-studied in Pakistan. Aims: To identify characteristics of deliberate self-harm in a hospital population, building on previous work carried out on this subject at this center. Methods: 284 cases admitted to the Aga Khan University Hospital,

Nida Zakiullah; Sadia Saleem; Sameea Sadiq; Nadia Sani; Munira Shahpurwala; Afroz Shamim; Atif Yousuf; Murad M. Khan; Parvez Nayani

2008-01-01

58

Rotational vs. standard smooth laryngeal mask airway insertion in adults  

Microsoft Academic Search

OBJECTIVE: To compare the ease of insertion between rotational laryngeal mask airway (LMA) insertion and Brain's LMA insertion technique in terms of number of LMA insertion attempts, time duration of LMA insertion and complications: trauma, laryngospasm, and hypoxaemia.STUDY DESIGN: Randomized control study.PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, from September 2006 to May 2007.METHODOLOGY: One hundred

Dileep Kumar; Mueenullah Khan; Muhammad Ishaq

2012-01-01

59

Mentoring in-service teachers: Issues of role diversity  

Microsoft Academic Search

This paper reports on the findings from a review of classroom-based action research reports by the masters students of an in-service teacher education programme offered by the Aga Khan University, Institute for Educational Development in Karachi, Pakistan. In these reports the students played the roles of researchers and mentors, i.e. they worked as mentors with teachers in a school, researched

Anjum Halai

2006-01-01

60

Perinatal outcomes in pregnancy with asthma  

Microsoft Academic Search

OBJECTIVE: To examine the relationship between asthmatic pregnancies and selected maternal and neonatal outcomes in a representative cohort.\\u000aMETHODS: A retrospective cohort study was conducted at the Aga Khan University Hospital during the year 2004. A random selection was made of 65 asthmatic and 63 non-asthmatic singleton births. The neonatal outcomes studied were birth weight, premature birth and Apgar scores

Rashid Zaheer Syed; Ali Bin Sarwar Zubairi; Muhammad Ahsan Zafar; Rahat Qureshi

2008-01-01

61

Students' Corner Sleep Deprivation and its associated factors among general ward patients at a Tertiary Care Hospital in Pakistan  

Microsoft Academic Search

Objective: To estimate the occurrence rate of sleep deprivation and to identify the environmental, staff-related and patient-related factors associated with SD among general ward patients of a tertiary care hospital in Pakistan. Methods: In a cross-sectional study, a pre-tested questionnaire was administered to 108 patients admitted into the general medical and general surgical wards of Aga Khan University Hospital, Karachi.

Majid Shafiq; Farah F. Salahuddin; Maham Siddiqi; Zaman Shah; Rehmat Ali; Rizwan A. Siwani; Ayesha Saleem; Kashif Shakoor Shaikh; Ali Khan Khuwaja

62

Assessing two spirometric criteria of pre-bronchodilator and post-bronchodilator FEV1\\/FVC ratio in detecting air flow obstruction  

Microsoft Academic Search

OBJECTIVES: To assess the Pre-bronchodilator criteria and the Post-bronchodilator criteria of FEV1\\/FVC ratio in diagnosing Airflow obstruction.\\u000aMETHODS: An observational study was conducted from 1988 to 2006 at the Aga Khan University Hospital Patients referred to the pulmonary function test laboratory for spirometry with bronchodilator reversibility at the hospital during the above said period were enrolled. Forced spirometry was performed

Zeeshan Waheed; Muhammad Irfan; Ahmed Suleman Haque; Najmul Hasan Siddiqui; Safia Awan; Beenish Syed; Javaid Ahmed Khan

2011-01-01

63

Microaesthetics of The Smile: Extraction vs. Non-extraction  

Microsoft Academic Search

OBJECTIVE: To compare microaesthetics in pre- and post-orthodontic cases, treated with non-extraction and extraction treatment and assessed whether the achieved microaesthetic parameters are comparable to the proposed norms.STUDY DESIGN: Quasi-experimental study.PLACE AND DURATION OF STUDY: Orthodontic Clinic, the Aga Khan University Hospital, Karachi, from January 2005 to December 2009.METHODOLOGY: Orthodontic records of 31 cases treated with non-extraction therapy and 26

Sanam Tauheed; Attiya Shaikh; Mubassar Fida

2012-01-01

64

Awareness and Use of Benzodiazepines in Healthy Volunteers and Ambulatory Patients Visiting a Tertiary Care Hospital: A Cross Sectional Survey  

Microsoft Academic Search

BackgroundIndiscriminate prescription of Benzodiazepines in Pakistan and subsequent availability over-the-counter without prescription is a major public health problem, requiring systematic inquiry through research. Additionally, there is limited data on the awareness and use of Benzodiazepines from developing countries making it impossible to devise meaningful health policies.Methodology\\/Principal FindingsThis was an Observational, Cross-Sectional study. conducted at Aga Khan University. A total of

Mustafa Raoof; Haq Nawaz; Rabeeya Nusrat; Aqueel Hussain Pabaney; Ali Raza Randhawa; Rabeea Rehman; Nida Butool Rizvi; Haider Naqvi; Moonseong Heo

2008-01-01

65

Smoking prevalence, knowledge and attitudes among medical students in Karachi, Pakistan  

Microsoft Academic Search

A survey of smoking prevalence and attitudes was made among medical students ran- domly selected from classes at the Aga Khan University, Karachi, Pakistan. Of 271 respondents, 14.4% were current smokers (22.0% male and 3.8% females) and 3.3% ex-smokers. A majority of students recognized the dangers associated with active as well as passive smoking although only 55% of cur- rent

F. M. Khan; S. J. Husain; A. Laeeq; A. Awais; S. F. Hussain; J. A. Khan

66

Hyponatraemia: etiology, management and outcome  

Microsoft Academic Search

OBJECTIVE: To determine the etiology of hyponatraemia, the treatment instituted and the outcome of treatment in a tertiary care hospital setting.STUDY DESIGN: Case series.PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, between January and June 2004.METHODOLOGY: Case records of 220 patients admitted to the medical service were identified through computerized hospital patients' data. All patients (3) 15

Aasima Yawar; Abdul Jabbar; Naeem Ul Haque; Lubna M Zuberi; Najmul Islam; Jaweed Akhtar

2008-01-01

67

Community acquired pneumonia: risk factors associated with mortality in a tertiary care hospitalized patients  

Microsoft Academic Search

OBJECTIVE: To evaluate risk factors associated with mortality in patients hospitalized with CommunityAcquired Pneumonia (CAP) from a developing country.\\u000aMETHODS: An observational study was conducted on adult patients admitted with a diagnosis of CAP from January 2002 to August 2003 at Aga Khan University hospital, Karachi, Pakistan. Clinical records were reviewed for demographic characteristics, clinical and laboratory features, hospital course,

Muhammad Irfan; Syed Fayyaz Hussain; Khubaib Mapara; Shafia Memon; Mohammed Mogri; Muniza Bana; Amna Malik; Sara Khan; Nadia A Khan

2009-01-01

68

Yeast arming by the Aga2p system: effect of growth conditions in galactose on the efficiency of the display and influence of expressing leucine-containing peptides.  

PubMed

The amino or carboxy-terminal regions of certain cell wall proteins are capable of anchoring foreign proteins or peptides on the cell wall of the yeast Saccharomyces cerevisiae. This possibility has resulted in the development of a methodology known as yeast display which has powerful applications in biotechnology, pharmacy, and medicine. This work describes the results of experiments in which the agglutinin Aga2p protein is used as an anchor and several leucine-based peptides have been introduced into its N-terminal or C-terminal position. We found that the sequence of these peptides can affect plasmid stability, growth kinetics, and levels of the fusion protein displayed, and we analyzed how the incubation conditions influence these parameters. Besides, we show that the introduction of these small peptides can modify the properties of cell cover; in particular, fusing five or ten leucine residues to the Aga2p protein results in greater hydrophobicity of the cell wall and also in increased resistance to the presence of the organic solvents acetonitrile and ethanol and to high salt concentrations. The introduction of the RLRLL sequence also results in higher resistance to the exposure of yeast cells to NaCl stress. PMID:23868296

Andreu, C; Del Olmo, M

2013-07-20

69

Salvadora persica, Tamarix aphylla and Zizyphus mauritiana-Three Woody Plant Species Mentioned in Holy Quran and Ahadith and Their Ethnobotanical Uses in North Western Part (D.I. Khan) of Pakistan  

Microsoft Academic Search

3 Abstract: The present research work is based on Three woody plant species: Salvadora persica, L. Tamarix aphylla (L.) Karst. and Zizyphus mauritiana Lam. mentioned in the 16 Ayat of Sura Saba in Holy Quran and th Ahadith. These plants were collected from Dera Ismail Khan District, NWFP, Pakistan, during 2007. This is a part of check list of medicinal

Sarfaraz Khan Marwat; Mir Ajab Khan; Muhammad Aslam Khan; Mushtaq Ahmad; Muhammad Zafar; Shazia Sultana

2009-01-01

70

Psiscan: a computational approach to identify H/ACA-like and AGA-like non-coding RNA in trypanosomatid genomes  

PubMed Central

Background Detection of non coding RNA (ncRNA) molecules is a major bioinformatics challenge. This challenge is particularly difficult when attempting to detect H/ACA molecules which are involved in converting uridine to pseudouridine on rRNA in trypanosomes, because these organisms have unique H/ACA molecules (termed H/ACA-like) that lack several of the features that characterize H/ACA molecules in most other organisms. Results We present here a computational tool called Psiscan, which was designed to detect H/ACA-like molecules in trypanosomes. We started by analyzing known H/ACA-like molecules and characterized their crucial elements both computationally and experimentally. Next, we set up constraints based on this analysis and additional phylogenic and functional data to rapidly scan three trypanosome genomes (T. brucei, T. cruzi and L. major) for sequences that observe these constraints and are conserved among the species. In the next step, we used minimal energy calculation to select the molecules that are predicted to fold into a lowest energy structure that is consistent with the constraints. In the final computational step, we used a Support Vector Machine that was trained on known H/ACA-like molecules as positive examples and on negative examples of molecules that were identified by the computational analyses but were shown experimentally not to be H/ACA-like molecules. The leading candidate molecules predicted by the SVM model were then subjected to experimental validation. Conclusion The experimental validation showed 11 molecules to be expressed (4 out of 25 in the intermediate stage and 7 out of 19 in the final validation after the machine learning stage). Five of these 11 molecules were further shown to be bona fide H/ACA-like molecules. As snoRNA in trypanosomes are organized in clusters, the new H/ACA-like molecules could be used as starting points to manually search for additional molecules in their neighbourhood. All together this study increased our repertoire by fourteen H/ACA-like and six C/D snoRNAs molecules from T. brucei and L. Major. In addition the experimental analysis revealed that six ncRNA molecules that are expressed are not downregulated in CBF5 silenced cells, suggesting that they have structural features of H/ACA-like molecules but do not have their standard function. We termed this novel class of molecules AGA-like, and we are exploring their function. This study demonstrates the power of tight collaboration between computational and experimental approaches in a combined effort to reveal the repertoire of ncRNA molecles.

Myslyuk, Inna; Doniger, Tirza; Horesh, Yair; Hury, Avraham; Hoffer, Ran; Ziporen, Yaara; Michaeli, Shulamit; Unger, Ron

2008-01-01

71

Syncope: experience at a tertiary care hospital in Karachi, Pakistan  

Microsoft Academic Search

Introduction  Our aim was to determine the characteristics of patients presenting with syncope at a tertiary care hospital in Karachi, Pakistan.\\u000a \\u000a \\u000a \\u000a Methods  A review of medical records was conducted retrospectively at the Department of Medicine, Aga Khan University Hospital, Karachi.\\u000a Patients aged 16 and above, admitted from January 2000 to December 2005 with the diagnosis of syncope made by the attending\\u000a physician

Muhammad Junaid Patel; Nadeem Ullah Khan; Abdul Jawwad Samdani; Muhammad Furqan; Aamir Hameed; Muhammad Shoaib Khan; Syed Imran Ayaz; Muhammad Omer Jamil

2008-01-01

72

Azurophilic inclusions in plasma cells.  

PubMed

We report a 45-year-old man with complaints of chest pain and weight loss who was referred for a bone marrow/trephine procedure to the Aga Khan University Hospital. Bone marrow examination showed plasmacytosis of 95% with plasma cells containing coarse Auer rod-like azurophilic inclusions, which failed to stain positively with Sudan Black B or periodic acid Schiff stain. These inclusions have rarely been previously reported as they are more significant morphologically rather than having a prognostic value. PMID:19352556

Ali, N; Moiz, B

2009-03-01

73

Commentary: in search of innovative approaches to international health.  

PubMed Central

The community health program of the Aga Khan University in Pakistan is reviewed from the perspective of historic and present-day developments in primary health care based in and focused on the community. The approach commonly referred to as community-oriented primary health care involves the complementary functions of clinical practice and epidemiology in partnership with the community. Encouragement and support by governments and other organizations for teaching and research in this field would ensure more adequate preparation of future practitioners and health scientists for community-oriented primary health care and would lead to improved health. Continuity of support for community health programs is important.

Kark, S L; Kark, E; Abramson, J H

1993-01-01

74

Universal Usability  

NASA Astrophysics Data System (ADS)

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.

Horton, Sarah; Leventhal, Laura

75

Factors influencing the opinion of individuals in determining tumour spread after biopsy  

PubMed Central

Background People often have concerns regarding tumour spread after biopsy which leads to a delay in seeking expert medical advice. The data regarding this perception is scanty. Therefore, we conducted this cross sectional study to explore the beliefs and perceptions of individuals regarding tumour spread after biopsy and the basis of those beliefs. Methods The survey was conducted in outpatient areas of two different tertiary care hospitals of Karachi namely Aga Khan University Hospital Karachi (AKUH) and Karachi Institute of Radiotherapy and Nuclear Medicine (KIRAN). We interviewed 600 individuals and documented their responses on a questionnaire. There were 400 responders from Aga Khan's Consulting Clinic and 100 each from Aga Khan's Oncology Clinic and KIRAN. Results Only 50% of the respondents chose biopsy as the best test for diagnosis of cancer. The level of education was statistically significant in making this choice of answer (p = 0.02) only in univariate analysis. Those individuals who were involved in the work up of cancer patients irrespective of their educational status gave more intelligent answers (p = 0.003). The tumour disturbance after biopsy was regarded as a major factor among 127 respondents (53%) who believed that biopsy could lead to spread of tumour. Conclusions Our study revealed that awareness regarding cancer diagnosis and biopsy is lacking among general public and it does not co-relate well with the level of formal education. These misconception and taboos need to be addressed in public seminars and in the media in order to increase the awareness which could facilitate prompt diagnosis.

2011-01-01

76

Universal Time  

NSDL National Science Digital Library

This article explains the concept of 'Universal Time' (UT), sometimes referred to as 'Coordinated Universal Time' (UTC). Topics include how UTC is measured, who uses it, and a brief discussion of the historical context of this time standard.

77

Life University  

NSDL National Science Digital Library

Life University offers professional degrees in chiropractic, and undergraduate and graduate degrees in health related fields. Information is provided about the college, the chiropractic profession and research.

1997-01-01

78

Universal Expansion.  

ERIC Educational Resources Information Center

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)

McArdle, Heather K.

1997-01-01

79

University Architecture.  

ERIC Educational Resources Information Center

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…

Edwards, Brian

80

University Architecture.  

ERIC Educational Resources Information Center

|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…

Edwards, Brian

81

Universal Expansion.  

ERIC Educational Resources Information Center

|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)|

McArdle, Heather K.

1997-01-01

82

Baby universes.  

NASA Astrophysics Data System (ADS)

Contents: 1. Introduction. 2. Topology change and third quantization in 0+1 dimensions. 3. Third quantization in 3+1 dimensions. 4. Parent and baby universes. 5. Instantons - from quantum mechanics to quantum gravity. 6. The axion model and the instanton approximation. 7. The cosmological constant: the Hawking-Baum argument; baby universes and Coleman's argument.

Strominger, A.

83

Baby universes  

Microsoft Academic Search

Contents: 1. Introduction. 2. Topology change and third quantization in 0+1 dimensions. 3. Third quantization in 3+1 dimensions. 4. Parent and baby universes. 5. Instantons - from quantum mechanics to quantum gravity. 6. The axion model and the instanton approximation. 7. The cosmological constant: the Hawking-Baum argument; baby universes and Coleman's argument.

A. Strominger

1991-01-01

84

University Futures  

ERIC Educational Resources Information Center

|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…

Smith, Richard

2012-01-01

85

Our Universe  

NASA Astrophysics Data System (ADS)

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

Stern, Alan

2001-03-01

86

Runaway Universe  

NSDL National Science Digital Library

This website is part of NOVA Online, which is produced for the Public Broadcasting System (PBS) by the Science Unit at WGBH in Boston. This site accompanies the television program of the same name, and ponders the question: What is the fate of our Universe? It provides information on the history and size of the universe, supernova explosions, and the local universe around the Milky Way. There is also a game exhibiting the Doppler effect and what it tells us about distant stars. A teacher's guide contains activities, teaching ideas, and a viewing guide for classroom use. The accompanying video is available through mail order.

87

Einstein's Universe.  

ERIC Educational Resources Information Center

|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)|

Carlson, Eric; Wald, Robert

1979-01-01

88

Universe Origins  

NSDL National Science Digital Library

This video segment from Swift: Eyes through Time introduces gamma ray bursts and how studying these distant objects in the universe help scientists look back in time. Swift scientists hope to discover or develop better theories of how the universe all began. The segment covers the origins of the study of the stars; the geocentric and heliocentric models; and, how culture influences the interpretation of scientific data.

2010-01-01

89

Undulant Universe  

SciTech Connect

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.

Barenboim, Gabriela; /Valencia U.; Mena, Olga; Quigg, Chris; /Fermilab

2004-12-01

90

Molecular Universe  

NSDL National Science Digital Library

This fantastic resource for college-level students of chemistry provides abundant images and explanatory text on molecules and molecular systems. The site's main provider is Richard Catlow, Director of the Davy Faraday Research Laboratory at the Royal Institution of Great Britain. Molecular Universe presents a collection of lessons, arranged into categories such as Building in Three Dimensions, Boundaries and Barriers, and The Molecules of Life. The sleek color illustrations demonstrate everything from diamond structure to a DNA molecule. Highlights of the site include a detailed look at protein folding, how molecules taste, and molecules and computers. Both students and professors should journey to the Molecular Universe.

Catlow, C. R. A. (Charles Richard Arthur), 1947-

2000-01-01

91

University Business  

NSDL National Science Digital Library

For good or ill, the landscape of higher education throughout the United States is changing rapidly, and the University Business website is a good way to keep in touch with the related transformations. Visitors to the site can read the contents of the current issue, which features articles on a myriad of subjects ranging from graduate student unions to new distance education technology, or browse through the online archive dating back to 2002. The site also contains special sections such as a calendar of upcoming conferences and workshops, case studies, and white papers. Users will also appreciate the Best Of feature, which brings together the most compelling writings from University Business on finance and technology-related issues in higher education. For those who find this information particularly relevant and helpful, the website also has a place where they may sign up to receive UBDaily, the e-newsletter delivered (at no charge) every business day.

92

Universal Similarity  

Microsoft Academic Search

We survey a new area of parameter-free similarity distance measures useful in\\u000adata-mining, pattern recognition, learning and automatic semantics extraction.\\u000aGiven a family of distances on a set of objects, a distance is universal up to\\u000aa certain precision for that family if it minorizes every distance in the\\u000afamily between every two objects in the set, up to the

Paul Vitanyi

2005-01-01

93

Taiwanese university students’ perceptions of university life  

Microsoft Academic Search

The purpose of this study is to describe Taiwanese university students’ perceptions of their lives and experiences on campus over the course of the university years. Thirty male and 30 female Taiwanese university students were interviewed and they shared retrospections and stories about university life and experiences. Seven themes that emerged from the data analysis were elaborated: phases of university

Yii-Nii Lin

2010-01-01

94

Recapturing the Universal in the University  

ERIC Educational Resources Information Center

|The idea of "the university" has stood for universal themes--of knowing, of truthfulness, of learning, of human development, and of critical reason. Through its affirming and sustaining of such themes, the university came itself to stand for universality in at least two senses: the university was neither partial (in its truth criteria) nor local…

Barnett, Ronald

2005-01-01

95

From conflict to collaboration, local political climate accelerates ITREOH's regionalization in South Asia.  

PubMed

As Pakistan becomes industrialized, the development of human resources is essential to addressing emerging health problems. The Fogarty International Center (FIC)-funded University of Alabama at Birmingham (UAB)-Aga Khan University (AKU) ITREOH initiative has been instrumental in filling the gaps in environmental and occupational health (EOH) training and research. Because of travel impediments to Pakistan, a regional short-term training program was implemented in Nepal and Sri Lanka. Workshop participants were from Pakistan, Nepal, Sri Lanka, India, and Bangladesh. The training programs enhanced north-to-south and south-to-south collaboration in research and training in South Asia. A major impact is the development of a certificate program in EOH at AKU. Research initiatives of regional and/or global concern are also under way in the other participating countries. The combination of face-to-face training with Web-based interaction for follow-up was optimal for short-term training. PMID:17168227

Sathiakumar, Nalini; Janjua, Naveed Zafar; Kadir, Masood; Spokes, Alexis Mclean; White, Heather; Kristensen, Sibylle; Delzell, Elizabeth

96

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

PubMed

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 (?m(5)U) at the first position of the anticodon in tRNA(Trp)(UGR). ?m(5)U enables tRNA(Trp) to decipher UGR codons as Trp. In addition, 5-taurinomethyl-2-thiouridine (?m(5)s(2)U) was found in mitochondrial tRNAs for Leu(UUR) and Lys in L. bleekeri. This is the first discovery of ?m(5)U and ?m(5)s(2)U in molluscan mitochondrial tRNAs. PMID:23362261

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

2013-01-28

97

University Transportation Survey: Transportation in University Communities.  

National Technical Information Service (NTIS)

Universities and transit agencies across the U.S. have been finding innovative new ways of providing and financing mobility services on and around university campuses. Many transit agencies are providing substantially more service and moving substantially...

J. Daggett R. Gutkowski

2003-01-01

98

The University of London  

Microsoft Academic Search

ONE of the taunts most frequently levelled at the London University-or ``Burlington Gardens,'' to use Prof. Lankester's favourite expression-by certain professors of University College and other advocates of a ``teaching University in and for London'' is, that the present University is a ``mere examining board.'' The University has, it is true, a Brown Professor of Physiology and Pathology, who delivers

Thomas Tyler

1891-01-01

99

Universities without “quality” and quality without “universities  

Microsoft Academic Search

Purpose – To review what “quality” meant to universities historically and might mean in the future. Design\\/methodology\\/approach – Written as a keynote talk for The Australian Universities Quality Forum 2004, this paper problematizes “universities” and “quality” by reviewing the way changing communication modalities have changed the meaning of the two terms over time. Findings – After reviewing some of the

Jim Dator

2005-01-01

100

University Handbook. University of Wisconsin, Whitewater.  

ERIC Educational Resources Information Center

|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…

Wisconsin Univ., Whitewater.

101

The primeval universe.  

NASA Astrophysics Data System (ADS)

Contents: 1. Introducing the universe. 2. The big bang. 3. Relics of the big bang. 4. Towards the unification of physics. 5. The very early universe. 6. Further adventures on the physics-cosmology frontier. 7. The universe in retrospect.

Narlikar, J. V.

102

The primeval universe  

Microsoft Academic Search

Contents: 1. Introducing the universe. 2. The big bang. 3. Relics of the big bang. 4. Towards the unification of physics. 5. The very early universe. 6. Further adventures on the physics-cosmology frontier. 7. The universe in retrospect.

J. V. Narlikar

1988-01-01

103

Feminist pedagogy: a framework for nursing education?  

PubMed

This article describes the feminist pedagogical strategies used in a nursing course in the post-RN Bachelor of Science in Nursing (BScN) program, Aga Khan University, Karachi, Pakistan. A variety of concepts that have direct relevance for nurses were discussed within small groups. These settings provided the venue for an examination of the issues that nurses, as primarily female, face in a patriarchal Muslim society and an androcentric health care system. Emphasis is on the process used in terms of feminist pedagogical practices and its relationship to feminist theory and critical pedagogy. The five process goals suggested by Schniedewind (1983) formed the basis for an exploration of this relationship through an analysis of the content and practices used in the course. It is demonstrated that the teaching practices advocated by feminist pedagogy hold much promise for nursing education to empower nurses and to make an impact on the health care system. PMID:8388046

Hezekiah, J

1993-02-01

104

Raised 17-hydroxyprogesterone levels in congenital adrenal hyperplasia.  

PubMed

Congenital adrenal hyperplasia (CAH) refers to autosomal recessive diseases resulting from deficiency of enzymes involved in the production of cortisol by the adrenal glands. This study was designed to determine the frequency of suspected congenital adrenal hyperplasia patients by evaluating the laboratory data of blood 17-OHP. The study was conducted at Chemical Pathology Section of Department of Pathology at the Aga Khan University, Karachi. The basic demographic data of 2282 subjects was recorded, screened for blood 17-OHP levels from January 2007 to December 2010. A cutoff of ³ 4 ng/ml was considered as suggestive of CAH. The results showed 17-OHP levels ³ 4 ng/ml were found predominantly among infants (14.4%) and in females (18.2%). PMID:23673184

Iqbal, Sahar; Khan, Aysha Habib

2013-05-01

105

Smoking prevalence, knowledge and attitudes among medical students in Karachi, Pakistan.  

PubMed

A survey of smoking prevalence and attitudes was made among medical students randomly selected from classes at the Aga Khan University, Karachi, Pakistan. Of 271 respondents, 14.4% were current smokers (22.0% male and 3.8% females) and 3.3% ex-smokers. A majority of students recognized the dangers associated with active as well as passive smoking although only 55% of current smokers planned to quit in the near future. Most smokers (96%) believed that they as well as other health professionals needed training on smoking cessation and 95% of all students believed that doctors should play a role model in smoking cessation by not smoking themselves. Specific training and counselling should be a part of the required curriculum at medical schools. PMID:16761665

Khan, F M; Husain, S J; Laeeq, A; Awais, A; Hussain, S F; Khan, J A

106

Cochlear implant in a patient with mondini's deformity of the cochlea: pilot patient in Pakistan.  

PubMed

Autosomal-recessive genes account for about 80% of the patients of non-syndromic deafness, and a major portion of those lead to cochlear pathology. Given the strong cultural practice of consanguineous marriages and the lack of awareness regarding screening modalities, a high prevalence of hereditary pre-lingual deafness is seen in Pakistan. Considering the situation, cochlear implant surgery was introduced by Aga Khan University Hospital (AKUH), Karachi, Pakistan, in 2003. Recently we decided to expand the profile and services available and conducted the first ever cochlear implant on an anatomically-challenged cochlea. The case report relates to the experience of our pilot patient who was suffering from Mondini's deformity. PMID:23901720

Qadeer, Sadaf; Junaid, Montasir; Sobani, Zainul Abedeen; Nadeem, Naila; Awans, Mohammad Sohail

2013-07-01

107

California State University, Sacramento  

ERIC Educational Resources Information Center

|California State University, Sacramento, commonly referred to as "Sacramento State," is a booming metropolitan university located on 300 acres in the state capital of California. The university, the seventh largest in the California State University system, enrolls a multicultural student body of approximately 29,000 students. At Sacramento…

Varlotta, Lori E.

2009-01-01

108

The Open Systems University.  

ERIC Educational Resources Information Center

The purpose of this paper is focused toward a systems understanding of the contemporary university, the American University being the data base. A general systems conceptualization called the open systems university is presented. Comprehensive and generic in character, it is hoped that the theory of the open university will be viable enough to…

Counelis, James Steve

109

The Global University Press  

ERIC Educational Resources Information Center

|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…

Dougherty, Peter J.

2012-01-01

110

Masks of the Universe  

NASA Astrophysics Data System (ADS)

Preface; Introducing the masks; Part I. Worlds in the Making: 1. The magic Universe; 2. The mythic Universe; 3. The geometric Universe; 4. The medieval Universe; 5. The infinite Universe; 6. The mechanistic Universe; Part II. The Heart Divine: 7. Dance of the atoms and waves; 8. Fabric of space and time; 9. Nearer to the heart's desire; 10. The cosmic tide; 11. Do dreams ever come true?; Part III. The Cloud of Unknowing: 12. The witch universe; 13. The spear of Archytas; 14. All that is made; 15. The cloud of unknowing; 16. Learned ignorance.

Harrison, Edward

2011-11-01

111

Masks of the Universe  

NASA Astrophysics Data System (ADS)

Preface; Introducing the masks; Part I. Worlds in the Making: 1. The magic Universe; 2. The mythic Universe; 3. The geometric Universe; 4. The medieval Universe; 5. The infinite Universe; 6. The mechanistic Universe; Part II. The Heart Divine: 7. Dance of the atoms and waves; 8. Fabric of space and time; 9. Nearer to the heart's desire; 10. The cosmic tide; 11. Do dreams ever come true?; Part III. The Cloud of Unknowing: 12. The witch universe; 13. The spear of Archytas; 14. All that is made; 15. The cloud of unknowing; 16. Learned ignorance.

Harrison, Edward

2003-05-01

112

Cardiovascular autonomic neuropathy in HIV infected patients  

Microsoft Academic Search

OBJECTIVE: To evaluate the presence and extent of autonomic dysfunction in HIV infected individuals of one ethnic group. DESIGN: Prospective, age-sex matched study. METHODS: 25 patients (seven asymptomatic (HIV), eight AIDS related complex (ARC), 10 AIDS) and 25 controls were recruited from patients and staff at the Aga Khan Hospital, Nairobi. Autonomic function was assessed by measurement of pulse rate

K. E. Rogstad; R. Shah; G. Tesfaladet; M. Abdullah; I. Ahmed-Jushuf

1999-01-01

113

Faith in International Development – an Islamic Perspective  

Microsoft Academic Search

This essay will attempt to analyze the role of one of the most complex phenomena - faith - in the field of international development. The emphasis will be put on Islamic perspective, using one of the world’s biggest groups of development agencies, the non-denominational Aga Khan Development Network (AKDN) as a case study. The paper will address the Islamic inspiration

Shodi Abdulvasiev

2007-01-01

114

Child health and education in Kenyan schools programmes.  

PubMed

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. PMID:2019516

Fleming, J

1991-03-01

115

Universal Test Facility.  

National Technical Information Service (NTIS)

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 ...

M. Laughery

1994-01-01

116

Metaphor and Universal Language.  

ERIC Educational Resources Information Center

|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)|

Blown, Eric; And Others

1990-01-01

117

Universality in Quantum Computation  

Microsoft Academic Search

We show that in quantum computation almost every gate that operates on two or more bits is a universal gate. We discuss various physical considerations bearing on the proper definition of universality for computational components such as logic gates.

David Deutsch; Adriano Barenco; Artur Ekert

1995-01-01

118

Gambling with the Universe  

NASA Astrophysics Data System (ADS)

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.

Hawking, Stephen

2002-05-01

119

The Expanding Universe  

NSDL National Science Digital Library

This site begins by discussing Edwin Hubble's great contribution to astronomy, that the universe is expanding. The major points in his paper overviews the possibility of an infinite or finite universe, the history of our universe and how it has evolved, and he finishes by discussing wheter the fate of our universe is one that expands and eventually grows cold or the possibility that it will end in a big crunch.

Felder, Gary

2005-04-25

120

The University Culture  

ERIC Educational Resources Information Center

|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…

Simplicio, Joseph

2012-01-01

121

John Carroll University  

ERIC Educational Resources Information Center

|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…

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

2009-01-01

122

Internationalising the University  

ERIC Educational Resources Information Center

|"International" and "internationalisation" are two terms frequently used today in association with the university. In this paper I consider the way in which the notion of internationalisation connects to the contemporary university, which I have termed "Neo-liberal". I begin by outlining the main characteristics of the contemporary university and…

Harris, Suzy

2008-01-01

123

University minority engineering programs  

Microsoft Academic Search

The agenda for a university minority program is examined. The purposes of the program are to recruit minority students into the engineering\\/science field, conduct a pre-college program for junior high students, and provide support for minority engineering students currently enrolled in the university. The focus will be on how a minority engineering program functions in a university setting. Programs such

M. Dakich

1993-01-01

124

Our Listless Universities.  

ERIC Educational Resources Information Center

|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)|

Bloom, Allan

1983-01-01

125

Situated University, Situated Writing  

ERIC Educational Resources Information Center

This article argues that teaching as a situated, civic activity must be a core intellectual activity in the engaged metropolitan university. Situated writing provides the key pedagogy for the Chicago Civic Leadership Certificate Program at the University of Illinois at Chicago, an engaged public research university. The role of writing, or…

Feldman, Ann M.

2009-01-01

126

Universities and relevance  

ERIC Educational Resources Information Center

|The extent to which criteria of relevance as determinants of the roles of universities are relevant, inconclusive, or irrelevant is discussed. The author, a vice-chancellor of the University of Malawi, suggests the role of the university is determined by the characteristics of the society it serves. Unfortunately, the model of relevance most…

Hunnings, Gordon

1976-01-01

127

Universe or multiverse?  

Microsoft Academic Search

Recent developments in cosmology and particle physics suggest there could be many other universes, with different physical constants and possibly even different laws. This proposal could explain the origin of our universe and why it is fine-tuned for the development of life. But are speculations about other universes that can never been seen, based on theories that may never be

Bernard Carr; George Ellis

2008-01-01

128

Universities and relevance  

ERIC Educational Resources Information Center

The extent to which criteria of relevance as determinants of the roles of universities are relevant, inconclusive, or irrelevant is discussed. The author, a vice-chancellor of the University of Malawi, suggests the role of the university is determined by the characteristics of the society it serves. Unfortunately, the model of relevance most…

Hunnings, Gordon

1976-01-01

129

The University and Research  

ERIC Educational Resources Information Center

Given the university's participation in scientific research, the author discusses the nature of that research at universities in Eastern and Western Europe and the USSR. In particular the university's research prioities, its coordination with outside research, its financing, and its staff workload are analyzed. (JH)

Matveev, A. N.

1973-01-01

130

Universal Design in Housing  

Microsoft Academic Search

Universal design in housing is a growing and beneficial concept. It is subtle in its differences from barrier-free, accessible, and industry standard housing. Accessibility standards and codes have not mandated universal design and do not apply to most housing. Universal design exceeds their minimum specifications for accessible design and results in homes that are usable by and marketable to almost

Ronald L. Mace

1998-01-01

131

Sierra University in Mexico  

ERIC Educational Resources Information Center

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…

Celis, Francisco Manuel Orozco

2003-01-01

132

Discovering the Expanding Universe  

NASA Astrophysics Data System (ADS)

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.

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

2009-03-01

133

Welcome to the Universe  

NSDL National Science Digital Library

A compliment to the Boston Museum of Science's exhibit, Welcome to the Universe is a "collection of web sites" aimed at teaching visitors about the Universe. Sites are organized into six categories: Patterns in the Sky, Size and Scale, Life Story of the Universe, Learning from Light, Additional Astronomy Resources, and Community Solar System. Each section provides a list of web sites and activities for hands-on learning.

134

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

PubMed

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 capacity to influence the different sectors of society they are in contact with (Toyne and Ali-Khan, 1998.). PMID:15208918

García Martínez, Alfonso

2004-01-01

135

Explore the Universe  

NSDL National Science Digital Library

The new online exhibit, Explore the Universe, is provided by the Smithsonian National Air and Space Museum. The site "presents the major discoveries that have given us our current scientific view of the universe, illustrates how the universe is taking shape and probes the mysteries that remain." The exhibit, which is especially interesting when viewed with necessary browsers and multimedia software, delves into the history of space exploration from Galileo and the earliest ideas about the universe to the digital technology of today. The visually stunning exhibit should be enjoyable to explore and offers people of all ages a great way to learn about the human need to know what lies beyond.

1994-01-01

136

Central Michigan University  

NSDL National Science Digital Library

Central Michigan University serves Michigan and the larger community as a doctoral/research intensive public university focused on excellent teaching and student-focused learning. The University is committed to providing a broad range of undergraduate and graduate programs and services to prepare its students for varied roles as responsible citizens and leaders in a democratic and diverse society. Its programs encourage intellectual and moral growth, prepare students for meaningful careers and professions, instill the values of lifelong learning, and encourage civic responsibility, public service and understanding among social groups in a global society. The university emphasizes an undergraduate program that maintains a balance between general education and specialization. In addition to educational depth in at least one academic discipline or professional field, the university provides educational experiences in the arts, humanities, natural and social sciences, global cultures, and issues of race and diversity. The university offers selected high quality graduate programs in traditional disciplines and professional fields. Through its College of Extended Learning, the university provides access to higher education programs and lifelong learning opportunities both nationally and internationally through a variety of innovative instructional methods and schedules designed to meet the demands of adult populations. Central Michigan University encourages research, scholarship and creative activity and promotes the scholarly pursuit and dissemination of new knowledge, artistic production and applied research. Through its support of research, the university enhances the learning opportunities of both its undergraduate and graduate students and promotes economic, cultural and social development. The universityÃøΩs sense of community is reflected through governance structures that allow broadbased participation, opportunities for close student-faculty interaction, and a rich array of residential and campus-based co-curricular activities. Through its partnerships and outreach efforts, the university promotes learning outsideof the traditional classroom and enhances the general welfare of society.

University, Central M.

137

University Patent Policy.  

ERIC Educational Resources Information Center

|An analysis of problems relating to university patents today is presented, and a policy for the institution which addresses the issues that these problems present is suggested. Patenting the results of university research would not delay the publication of research and would provide a needed source of funding. (Author/MLW)|

Lachs, Phyllis S.

1984-01-01

138

Reeducation at Heidelberg University.  

ERIC Educational Resources Information Center

|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…

Giles, Geoffrey J.

1997-01-01

139

Financing University Research  

Microsoft Academic Search

While the detailed mechanisms of the interplay of knowledge creation and economic growth have been discussed in great detail by endogenous growth theory, this paper is interested in assessing the role that universities play in the knowledge based economy. It does so at the example of best practice scenarios, as currently being undertaken by the University of Oxford, U.C. Berkeley,

Roya Ghafele

2012-01-01

140

Marketing University Outreach Programs.  

ERIC Educational Resources Information Center

|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);…

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

141

Towards the Entrepreneurial University  

Microsoft Academic Search

The article analyses the emergence and evolution of universities towards a more entrepreneurial model. The emergence of such a new entrepreneurial mission, incremental in relation to the more traditional and consolidated ones of education and research, determines the direct involvement of universities in the exploitation of research results, more intense collaborations with industry and involvement in regional economic development. It

Michela Lazzeroni; Andrea Piccaluga

2003-01-01

142

The plasma universe  

Microsoft Academic Search

The extrapolation of observed plasma densities, magnetic and electric field strengths, and energies in near-Earth and solar system plasmas to regions beyond the reach of spacecraft has led to the concept of a plasma universe. The importance of applying electromagnetism and plasma physics to the problem of radiogalaxy, galaxy, and star formation derives from the fact that the Universe is

A. L. Peratt

1989-01-01

143

The Pennsylvania State University  

ERIC Educational Resources Information Center

|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…

Burlingame, Philip J.; Dowhower, Andrea L.

2009-01-01

144

Slippery Rock University  

ERIC Educational Resources Information Center

|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.…

Arnhold, Robert W.

2008-01-01

145

University HRD Programs. Symposium.  

ERIC Educational Resources Information Center

|This symposium is comprised of four papers on university human resource development (HRD) programs. "Passions for Excellence: HRD Graduate Programs at United States Universities" (K. Peter Kuchinke) presents an analysis of case studies that reveals convergent and divergent themes related to the genesis of programs and subsequent theoretical…

2002

146

University HRD Programs. Symposium.  

ERIC Educational Resources Information Center

This symposium is comprised of four papers on university human resource development (HRD) programs. "Passions for Excellence: HRD Graduate Programs at United States Universities" (K. Peter Kuchinke) presents an analysis of case studies that reveals convergent and divergent themes related to the genesis of programs and subsequent theoretical…

2002

147

Life in the Universe  

Microsoft Academic Search

Life in the Universe documents the largest gathering to date of experts in the exciting new field of exobiology. In 29 chapters, the book explores the whole question of the nature and distribution of life in the universe -- from the formation of planets to the origins of life on earth, the emergence of intelligence, and the future search for

John Billingham

1981-01-01

148

The inflationary universe  

Microsoft Academic Search

The theory of the inflationary universe is discussed. The problems facing the standard big-bang model are described, including the horizon problem, the smoothness problem, and the flatness problem. The combination of grand unified theories and the standard picture explains the asymmetry of matter and antimatter in the universe, but raises the problem of monopoles and domain walls. How the inflationary

A. H. Guth; P. J. Steinhardt

1984-01-01

149

Universal Test Facility  

Microsoft Academic Search

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

Mike Laughery

1994-01-01

150

For Free Universities  

ERIC Educational Resources Information Center

|This article is a shortened version of an inaugural professorial lecture given at the University of Greenwich on 19 January 2005 as an intervention in the debate at that time within that university and other English further and higher education institutions over the appropriate level of fees to charge in 2006. It anticipates the likely effects…

Ainley, Patrick

2005-01-01

151

[The University in Crisis.  

ERIC Educational Resources Information Center

|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…

Abram, Morris B.

152

Modelling University Governance  

ERIC Educational Resources Information Center

|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…

Trakman, Leon

2008-01-01

153

The Expanding Universe  

NSDL National Science Digital Library

This activity demonstrates with balloons the expansion of the universe. Distances between points on the balloon are meausred as the balloon expands, showing how all are getting farther apart. After the activity the students are asked questions about the universe's expansion.

Slater, Tim P.

2004-07-16

154

Our Heirarchical Universe  

NSDL National Science Digital Library

This site discusses several hot topic questions in the astronomy world. For example, the expansion of the universe, dark matter, and how did giant superstructures form out of a smooth universe. There are many pictures and movie clips interspersed throughout the website.

Norman, Michael

2005-04-25

155

Astronomy and the Universe  

NSDL National Science Digital Library

With three levels to choose from on each page - beginner, intermediate or advanced - this site provides links to webpages that share information that relates to every element of the universe, like the cosmos, star dust, and planets. The information is shared in a clear and interesting way, with updated news and even universe maps.

2001-08-08

156

For Free Universities  

ERIC Educational Resources Information Center

This article is a shortened version of an inaugural professorial lecture given at the University of Greenwich on 19 January 2005 as an intervention in the debate at that time within that university and other English further and higher education institutions over the appropriate level of fees to charge in 2006. It anticipates the likely effects…

Ainley, Patrick

2005-01-01

157

Creation of the universe  

Microsoft Academic Search

Philosophical aspects of current cosmological theories are explored in an introduction for general readers. Chapters are devoted to the physical implications of an ancient Chinese story, expansion without a center, the age of the universe, the finiteness or infiniteness of space, visible and invisible matter, the birth of order from chaos, and the thermal history of the universe. Consideration is

Li Zhi Fang; Shu Xian Li

1989-01-01

158

Universe: The Universe Beyond our Solar System  

NSDL National Science Digital Library

This Science Object is the fourth of five Science Objects in the Universe SciPack. It explores the more unknown parts of the universe beyond our solar system and provides an understanding of where and how we fit into the universe as a whole. Astronomers have carefully measured the changing positions of stars, leading them to believe that the Sun is located about half-way out from the center of a disk-shaped galaxy of stars, part of which can be seen as a glowing band of light that spans the sky on a very clear night. Although our Sun is a single star, most stars exist in systems of two or more stars orbiting around one another and are arranged in huge star clusters. Galaxies are isolated collections of billions of gravitationally bound stars and immense clouds of gas and dust. Galaxies are, in turn, grouped into galaxy clusters and super-clusters. The universe contains many billions of galaxies separated by immense distances of mostly empty space. Some of these distant galaxies are so far away that their light takes several billion years to reach Earth. This means that here on Earth we are seeing them as they were that long ago. Learning Outcomes:� Arrange various objects in order of size and distance, ranging from space probes and moons to galaxies and galactic clusters.� Catalogue, in simple terms, the objects within a galaxy.� Generally explain "what is within what" (planetary systems, star clusters, galaxies, etc.).� Describe the location of our solar system within the Milky Way galaxy.� Describe the limitations of using parallax, radar, and brightness to measure the distance of objects from Earth, and classify objects whose distance from Earth could be accurately measured using each type of measurement strategy.

National Science Teachers Association (NSTA)

2006-11-01

159

University and Jepson Herbaria  

NSDL National Science Digital Library

The University of California Berkeley's "University Herbarium (UC) and Jepson Herbarium (JEPS) represent the largest collection of herbarium material west of the Missouri Botanical Garden and the largest at a public university in the United States." Visitors can discover the scientific uses of the many specimens held in the UC, which was established in 1895. The website describes the JEPS's research on systematics and floristics of vascular plants. Researchers and students can find concise overviews, articles, and publications about the Californian - Iranian Botanical Program, angiosperm and bryology studies, and additional botanical studies.

160

External Resource: Runaway Universe: History of the Universe  

NSDL National Science Digital Library

If the observations of cosmic acceleration featured in the NOVA program "Runaway Universe" are correct, then the universe will probably continue to expand forever. Does this mean that the universe will always contain its galaxies and stars and black holes

1900-01-01

161

Career Education in Universities  

ERIC Educational Resources Information Center

Problem areas encountered in developing career education at the university level are discussed: (1) classroom-work relationship, (2) work values, (3) transferable academic skills, (4) critical career skills, (5) career self-concept, and (6) accurate career information. (EC)

Casella, D. A.; Samples, S.

1976-01-01

162

Many Universes POSSIBLE!  

NASA Astrophysics Data System (ADS)

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.

Sinha, Pankaj K.

163

California's "Free" Universities  

ERIC Educational Resources Information Center

|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)|

Cudhea, David

1974-01-01

164

The German University System.  

National Technical Information Service (NTIS)

The German system of higher education is described under consideration of the recent changes. Also covered are degrees granted, the organization of the universities, the social status of the degree holder, the role of the professions. The report is intend...

R. T. Schneider

1975-01-01

165

University of Illinois.  

ERIC Educational Resources Information Center

The administrative and financial structure of the Office of Administrative Information Systems and Services at the University of Illinois are briefly described and its financing outlined. Support software and special services are detailed. (MSE)

CAUSE/EFFECT, 1980

1980-01-01

166

Harvard University Archives.  

National Technical Information Service (NTIS)

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 ...

D. E. Horn

1969-01-01

167

University-Industry Interaction.  

National Technical Information Service (NTIS)

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 review...

D. E. Hastings

1990-01-01

168

Marquette University Neuroanatomical Dissection  

NSDL National Science Digital Library

This website provides information regarding Marquette University' Neuroanatomical Dissection Summer Course. The focus of the course is an intensive review of the brain and spinal cord. Participants will spend a portion of the course dissecting a cadaver.

Marquette University (Marquette University)

2012-07-24

169

Berkeley College, Yale University.  

ERIC Educational Resources Information Center

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)

Russell, James S.

2000-01-01

170

Best-fit universe.  

National Technical Information Service (NTIS)

Inflation provides very strong motivation for a flat Universe, Harrison-Zel'dovich (constant-curvature) perturbations, and cold dark matter. However, there are a number of cosmological observations that conflict with the predictions of the simplest such m...

M. S. Turner

1990-01-01

171

Universalities in Halo Nuclei  

SciTech Connect

In this contribution I provide an overview of our group papers involving universalities in light exotic nuclei. It is also made a connection of these systems with some weakly bound ultracold molecules.

Yamashita, M. T. [Instituto de Fisica Teorica, UNESP-Univ Estadual Paulista, C.P. 70532-2, CEP 01156-970, Sao Paulo, SP (Brazil)

2010-05-21

172

The hidden universe  

SciTech Connect

Astronomer Disney has followed a somewhat different tack than that of most popular books on cosmology by concentrating on the notion of hidden (as in not directly observable by its own radiation) matter in the universe.

Disney, M.

1985-01-01

173

Understanding the Universe  

NSDL National Science Digital Library

This Discovery Channel website explores the features of our universe. There are three sections covering various aspects of the universe, as well as a section for teachers with tips for using the website in the classroom. The Stargazers section discusses the top ten astronomers who have contributed to our current understanding of the universe: Kepler, Galileo, Brahe, Copernicus, Hubble, Einstein, Newton, Lemaitre, Penzias and Wilson. The Galaxy Tour section provides a field trip beginning in our own galaxy, the Milky Way, then moving to the magellanic clouds, the Andromeda galaxy, the Virgo Cluster of galaxies, unusual galaxies, and information from the Hubble Space Telescope. The It's Awesome section contains further information for understanding the vastness of the universe, light years and time, and includes a cosmic calendar and a mind game. Resources and links are provided for further information.

174

Evolution of the Universe  

NSDL National Science Digital Library

In this video from NASA, learn how the James Webb Space Telescope is helping scientists understand when and how early stars formed, what early galaxies looked like, and how the early universe shaped its underlying structure.

Wnet

2012-07-05

175

Universe on a Scratchpad.  

National Technical Information Service (NTIS)

This program studies the work of a modern day astro-physicist and his method of studying the universe. It features commentary by Dr. Robert Jastrow and Dr. Patrick Thaddeus of the NASA Goddard Institute for Space Studies, New York.

1994-01-01

176

Boston University Photonics Center.  

National Technical Information Service (NTIS)

The Boston University Photonics Center was established to conduct basic and applied research on photonics materials, devices, and systems related to defense needs, and to establish research laboratories and facilities to support collaboration among academ...

P. Blasche

1998-01-01

177

Perelman's Universal Audience.  

ERIC Educational Resources Information Center

Examines the concept of the universal audience as the basic factor of Chaim Perelman's rhetorical theory and concludes that it is subject to the same criticism as Rousseau's general will and Kant's categorical imperative. (JMF)

Ray, John W.

1978-01-01

178

Students sample university life  

Microsoft Academic Search

Students from Yule Brook College in Maddington, Perth and Sacred Heart School in Beagle Bay were given an insight into life at a University recently when they visited The University of Notre Dame Australia’s Broome Campus.\\u000aThe Yule Brook students are all members of the Yule Brook Football Academy, one of six academies under the guidance of the Clontarf Foundation.

Michelle Ebbs

2006-01-01

179

Dance Links University Pages  

NSDL National Science Digital Library

One of the highlights of the Dance Links Web site , compiled mainly from information provided by dance videographer Amy Reusch, is the University Dance Departments pointers page, a collection of pointers to over 150 U.S. University Dance departments, as well as departments in Australia, Canada, Finland, Ireland, and the United Kingdom. Dance Links also points to resources related to dance companies, performance listings, publications, organizations, funding, dance schools, dancers, and other dance indexes.

180

Age of the Universe  

NSDL National Science Digital Library

Some scientists say the universe is 10 billion years old; others say it is 20 billion. The problem is that different methods of measuring give different answers. This radio broadcast considers 2 methods: determining the age of stars; and determining the speed and distance of stars. The conflict in the two methods points to possible problems in the theory of the expanding universe or the lifetime of stars. The clip is 2 minutes in length.

181

The Low Temperature Universe  

SciTech Connect

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.

Blandford, Roger; Simeon, Paul [Kavli Institute for Particle Astrophysics and Cosmology at Stanford University and SLAC National Accelerator Laboratory, PO Box 20450, M/S 29, Stanford, CA 94309 (United States)

2009-12-16

182

Family Bonding with Universities  

Microsoft Academic Search

One justification offered for legacy admissions policies at universities is that that they bind entire families to the university.\\u000a Proponents maintain that these policies have a number of benefits, including increased donations from members of these families.\\u000a We use a rich set of data from an anonymous selective research institution to investigate which types of family members have\\u000a the most

Jonathan MeerHarvey; Harvey S. Rosen

2010-01-01

183

Evolution of the Universe  

NSDL National Science Digital Library

This site is part of an online textbook, Fundamentals of Physical Geography by Michael Pidwirny, and provides an online chapter about the past, present, and future of the universe. Images illustrate the concepts discussed, and it covers topic such as the validity of the Big Bang theory and postulations about how the universe will end. Students and educators can find links to a useful glossary and a list of additional readings.

Pidwirny, Michael J., 1958-

2007-12-21

184

The Endless Universe  

SciTech Connect

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.

Steinhardt, Paul (Princeton University)

2003-09-24

185

The Endless Universe  

ScienceCinema

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.

186

The Expanding Universe  

NSDL National Science Digital Library

This lesson plan is part of the Center for Educational Resources (CERES), a series of web-based astronomy lessons created by a team of master teachers, university faculty, and NASA researchers. In this lesson, students gain a deeper understanding of cosmology by gathering evidence for the Big Bang theory. They explore the Hubble Law and create a model of the expanding universe. This lesson contains expected outcomes for students, materials, background information, follow-up questions, and assessment procedures.

Tuthill, George; Obbink, Kim

187

Is the universe expanding  

Microsoft Academic Search

It is shown that spherically symmetric static general relativistic cosmological space-times can reproduce the same cosmological observations as the currently favored Friedmann-Robertson-Walker universes, if the usual assumptions are made about the local physical laws determining the behavior of matter, provided that the universe is inhomogeneous and our galaxy is situated close to one of its centers. Only unverifiable a priori

G. F. R. Ellis

1978-01-01

188

Is the universe expanding?  

Microsoft Academic Search

It is shown that spherically symmetric static general relativistic cosmological space-times can reproduce the same cosmological observations as the currently favored Friedmann-Robertson-Walker universes, if the usual assumptions are made about the local physical laws determining the behavior of matter, provided that the universe is inhomogeneous and our galaxy is situated close to one of its centers. Only (i) unverifiable a

G. F. R. Ellis

1978-01-01

189

The Universe Revealed  

NASA Astrophysics Data System (ADS)

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.

Spence, Pam

1998-10-01

190

IS THE UNIVERSE ROTATING?  

SciTech Connect

Models of a rotating universe have been studied widely since the work of Goedel, who showed an example that is consistent with general relativity. By now, the possibility of a rotating universe has been discussed comprehensively in the framework of some types of Bianchi's models, such as Type V, VII, and IX and different approaches have been proposed to constrain the rotation. Recent discoveries of some non-Gaussian properties of the Cosmic Microwave Background Anisotropies (CMBA), such as the suppression of the quadrupole and the alignment of some multipoles draw attention to some Bianchi models with rotation. However, cosmological data, such as those of the CMBA, strongly prefer a homogeneous and isotropic model. Therefore, it is of interest to discuss the rotation of the universe as a perturbation of the Robertson-Walker metric, to constrain the rotating speed by cosmological data and to discuss whether it could be the origin of the non-Gaussian properties of the CMBA mentioned above. Here, we derive the general form of the metric (up to second-order perturbations) which is compatible with the rotation perturbation in a flat LAMBDA-CDM universe. By comparing the second-order Sachs-Wolfe effect due to rotation with the CMBA data, we constrain the angular speed of the rotation to be less than 10{sup -9} rad yr{sup -1} at the last scattering surface. This provides the first constraint on the shear-free rotation of a LAMBDACDM universe.

Su, S.-C.; Chu, M.-C., E-mail: scsu@phy.cuhk.edu.h, E-mail: mcchu@phy.cuhk.edu.h [Department of Physics and Institute of Theoretical Physics, Chinese University of Hong Kong, Shatin (Hong Kong)

2009-09-20

191

Understanding the Universe  

NSDL National Science Digital Library

The Understanding the Universe Web site is part of Discovery.com's excellent educational resource DiscoverySchool.com site and is a joint effort with the American Museum of Natural History. This attractive site contains three major sections. The It's Awesome page has a time line of the universe that links to the Universe in One Year page -- a great way of learning the difficult concept of geologic time by showing that, if the history of the universe was compressed into one year, modern humans wouldn't appear until 11:54pm on December 31. The Galaxy Tour section contains descriptions of the Milky Way and other galaxies, and provides questions that are answered via RealPlayer audio files by Frank Summers, an expert from the American Museum of Natural History . Finally, the StarGazers section highlights pioneers in the study of our Universe, such as Copernicus and Einstein. For educators, the Teacher's Tip link gives a suggested grade level of 5-8 and describes how to use the Web site most effectively.

2002-01-01

192

University Reactor Instrumentation Program  

SciTech Connect

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.

Vernetson, W.G.

1992-11-01

193

Physics at Fisk University  

NASA Astrophysics Data System (ADS)

Fisk University was started in 1866 for predominantly Black students at the end of the Civil War. Its Department of Physics was started in 1931, under the chairmanship of Dr. Elmer Imes, Fisk '03, a research physicist in the field of infrared spectroscopy. Imes set the stage for Fisk's development of an infrared spectroscopy research laboratory. After Imes' untimely death in 1942, one of his early physics majors, James Lawson, chaired the Fisk Physics Department and soon obtained a research type infrared instrument from the University of Michigan. By the early 50's, five Fisk graduate students in physics published with their faculty mentors, the results of their M.A. degree research in infrared spectroscopy and read papers at the meetings of SESAPS. This active participation in SESAPS of Fisk's Black physicists was the impetus which caused SESAPS in 1954 to switch its meetings from segregated to unsegregated facilities. SESAPS then accepted the invitation of Fisk University to hold its 1955 annual meeting on the Fisk campus. But there is lots more to tell of Physics at Fisk University: research in ion optics and the solid state (like growing crystals in ``zero gravity"); research collaboration with Oak Ridge, Vanderbilt and Bordeaux, France; diversification of the physics student population; the impact of Fisk's physicists on the University's financial ``ups and downs"; etc. We will touch on all this and more!

Fuson, Nelson

1997-11-01

194

AGA panel forecasts gas demand at 22 TCF in 2000  

SciTech Connect

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.

Not Available

1984-07-09

195

AGA technical review on management of oropharyngeal dysphagia  

Microsoft Academic Search

This literature review and the recommendations therein were prepared for the American Gastroenterological Association Clinical Practice and Practice Economics Committee. The paper was approved by the committee on May 17, 1998.GASTROENTEROLOGY 1999;116:455-478

Ian J. Cook; Peter J. Kahrilas

1999-01-01

196

The university: a social technology for producing universal knowledge  

Microsoft Academic Search

This paper offers a broad-scale perspective on the university as a social technology for the production of universal knowledge, centered at first around two basic questions: If universal knowledge exists, why doesn’t everyone have access to it? If knowledge were made truly universal, how would it change? These questions are stated from the perspectives of philosophy and policy, followed by

S. Fuller

2003-01-01

197

The Biological Universe  

NASA Astrophysics Data System (ADS)

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.

Dick, Steven J.

1999-12-01

198

Baby universe theory.  

NASA Astrophysics Data System (ADS)

The authors give an elementary review of the so called "the theory of baby universes" which is a series of ideas or speculations about some effects in quantum gravity, viz. the effect of a certain type of wormholes, representing the exchange of small 3-space universes called baby universes. They consider this "theory" as being physically and scientifically a very promising candidate for a theory of everything. It is, however, mathematically lacking any strong foundation at all. It solves several fine-tuning problems: First of all the cosmological constant problem, and also the strong CP-problem and the hierarchy problem. The authors also speculate that it might predict the possibility of influencing the probability distributions of the outcome of quantum mechanical measurements at one time by acts at a later time.

Nielsen, H. B.; Ninomiya, M.

1989-12-01

199

The Classification of Universes  

ScienceCinema

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.

200

Universality in network dynamics  

NASA Astrophysics Data System (ADS)

Despite significant advances in characterizing the structural properties of complex networks, a mathematical framework that uncovers the universal properties of the interplay between the topology and the dynamics of complex systems continues to elude us. Here we develop a self-consistent theory of dynamical perturbations in complex systems, allowing us to systematically separate the contribution of the network topology and dynamics. The formalism covers a broad range of steady-state dynamical processes and offers testable predictions regarding the system's response to perturbations and the development of correlations. It predicts several distinct universality classes whose characteristics can be derived directly from the continuum equation governing the system's dynamics and which are validated on several canonical network-based dynamical systems, from biochemical dynamics to epidemic spreading. Finally, we collect experimental data pertaining to social and biological systems, demonstrating that we can accurately uncover their universality class even in the absence of an appropriate continuum theory that governs the system's dynamics.

Barzel, Baruch; Barabási, Albert-László

2013-10-01

201

Universality of geometry  

NASA Astrophysics Data System (ADS)

In models of emergent gravity the metric arises as the expectation value of some collective field. Usually, many different collective fields with appropriate tensor properties are candidates for a metric. Which collective field describes the "physical geometry"? We resolve this "metric ambiguity" by an investigation of the most general form of the quantum effective action for several metrics. In the long-distance limit the physical metric is universal and accounts for a massless graviton. Other degrees of freedom contained in the various metric candidates describe very massive scalars and symmetric second rank tensors. They only play a role at microscopic distances, typically around the Planck length. The universality of geometry at long distances extends to the vierbein and the connection. On the other hand, for distances and time intervals of Planck size geometry looses its universal meaning. Time is born with the big bang.

Wetterich, C.

2012-05-01

202

Visiting the Gödel universe.  

PubMed

Visualization of general relativity illustrates aspects of Einstein's insights into the curved nature of space and time to the expert as well as the layperson. One of the most interesting models which came up with Einstein's theory was developed by Kurt Gödel in 1949. The Gödel universe is a valid solution of Einstein's field equations, making it a possible physical description of our universe. It offers remarkable features like the existence of an optical horizon beyond which time travel is possible. Although we know that our universe is not a Gödel universe, it is interesting to visualize physical aspects of a world model resulting from a theory which is highly confirmed in scientific history. Standard techniques to adopt an egocentric point of view in a relativistic world model have shortcomings with respect to the time needed to render an image as well as difficulties in applying a direct illumination model. In this paper we want to face both issues to reduce the gap between common visualization standards and relativistic visualization. We will introduce two techniques to speed up recalculation of images by means of preprocessing and lookup tables and to increase image quality through a special optimization applicable to the Gödel universe. The first technique allows the physicist to understand the different effects of general relativity faster and better by generating images from existing datasets interactively. By using the intrinsic symmetries of Gödel's spacetime which are expressed by the Killing vector field, we are able to reduce the necessary calculations to simple cases using the second technique. This even makes it feasible to account for a direct illumination model during the rendering process. Although the presented methods are applied to Gödel's universe, they can also be extended to other manifolds, for example light propagation in moving dielectric media. Therefore, other areas of research can benefit from these generic improvements. PMID:18989011

Grave, Frank; Buser, Michael

203

Birth of inflationary universes  

SciTech Connect

A cosmological model is proposed in which the Universe is created by quantum tunneling from ''nothing'' into a de Sitter space. The tunneling is described by a de Sitter-- p Hawking--Moss instanton. After the tunneling, the model evolves along the lines of the inflationary scenario. It is argued that at any time there exist parts of the Universe which are still in the de Sitter phase, while other parts have already recollapsed. This model does not have a big-bang singularity and does not require any initial or boundary conditions.

Vilenkin, A.

1983-06-15

204

Beyond the Mechanical Universe  

NASA Astrophysics Data System (ADS)

Preface; 31. Beyond the mechanical universe; 32. Static electricity; 33. The electric field; 34. Potential and capacitance; 35. Voltage, energy and force; 36. The electric battery; 37. Electric circuits; 38. Magnetism; 39. The magnetic field; 40. Vector fields and hydrodynamics; 41. Electromagnetic induction; 42. Alternating currents; 43. Maxwell's equations; 44. Optics; 45. The Michelson-Morley experiment; 46. The Lorentz transformation; 47. Velocity and time; 48. Mass, momentum, energy; 49. Atoms; 50. Particles and waves; 51. Atoms to quarks; 52. The quantum mechanical universe; Appendix A. The international system of units; Appendix B. Conversion factors; Appendix C. The periodic table of the elements; Appendix D. Astronomical data; Appendix E. Physical constants; Index.

Olenick, Richard P.; Apostol, Tom M.; Goodstein, David L.

2008-04-01

205

Creation of the universe  

NASA Astrophysics Data System (ADS)

Philosophical aspects of current cosmological theories are explored in an introduction for general readers. Chapters are devoted to the physical implications of an ancient Chinese story, expansion without a center, the age of the universe, the finiteness or infiniteness of space, visible and invisible matter, the birth of order from chaos, and the thermal history of the universe. Consideration is given to the synthesis of elements, the origin of asymmetry, the inflation of vacuum, the physics of the first move, and the anthropic principle and physical constants. Diagrams and drawings are provided.

Fang, Li Zhi; Li, Shu Xian

206

College and University Rankings  

NSDL National Science Digital Library

College and University Rankings, compiled by Nancy P. O'Brien, Head of the Education and Social Science Library at the University of Illinois at Urbana-Champaign, provides an annotated list of resources that rank higher education institutions. The list of ranking resources is conveniently divided into five sections: general/undergraduate, graduate, business, law, and international. However, this site is not merely a list of sites; it also includes an informative essay entitled Caution and Controversy, which questions and evaluates the methods and usefulness of ranking services, and provides users with electronic and print resources for the independent assessment of ranking services.

207

Hands-on-Universe  

NSDL National Science Digital Library

Hands-On Universe (HOU)is "an educational program that enables students to investigate the Universe while applying tools and concepts from science, math, and technology." HOU participants use the Internet to request observations from an automated telescope and then download those images from a large image archive so they can analyze them using image processing software. Membership and complete teaching packages must be purchased, but several images and activities are posted online for anyone to access. For example, the Teacher section includes a section on HOU Activities & Lesson Plans Online, which offers several activities and online resources that connect astronomy and mathematics.

208

Jinr University Centre  

NASA Astrophysics Data System (ADS)

More than ten years ago, joint Order of the Ministries of Education and Atomic Energy No. 28/33 was signed on January 16, 1991. It was titled "On Providing Staff for Research and Applied Work in Nuclear Physics, Elementary Particle Physics, Condensed Matter Physics, and High-Temperature Superconductivity." This Order initiated the specialized education on the basis of JINR of graduate students from Moscow State University (MSU), Moscow Engineering Physics Institute (MEPI), and, a little later, Moscow Institute of Physics and Technology (MIPT). On the grounds of this Order, the University Centre (the UC) was established, whose 10th anniversary was celebrated on March 21, 2001.

Ivanova, Svetlana

2005-09-01

209

Imaging the early universe  

SciTech Connect

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.

Krupa, Tyler J. [Optical Society of America, 2010 Massachusetts Avenue, N.W., Washington, D.C. 20036 (United States)

2000-07-01

210

Anisotropically inflating universes  

SciTech Connect

We show that in theories of gravity that add quadratic curvature invariants to the Einstein-Hilbert action there exist expanding vacuum cosmologies with positive cosmological constant which do not approach the de Sitter universe. Exact solutions are found which inflate anisotropically. This behavior is driven by the Ricci curvature invariant and has no counterpart in the general-relativistic limit. These examples show that the cosmic no-hair theorem does not hold in these higher-order extensions of general relativity and raises new questions about the ubiquity of inflation in the very early universe and the thermodynamics of gravitational fields.

Barrow, John D. [DAMTP, Centre for Mathematical Sciences, Cambridge University, Wilbeforce Road, Cambridge CB3 0WA (United Kingdom); Hervik, Sigbjoern [Department of Mathematics and Statistics, Dalhousie University, Halifax, Nova Scotia, B3H 3J5 (Canada)

2006-01-15

211

Understanding the Universe  

NASA Astrophysics Data System (ADS)

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.

Greenstein, George

2013-04-01

212

Illinois State University Planetarium  

NSDL National Science Digital Library

At this website, visitors can discover the Illinois State University (ISU) Planetarium, which was created to provide a popular form of enriching entertainment, facilitate university-community relation, and recruit potential students. For astronomers, the website features a useful celestial events calendar updated at the end of each month. Educators can learn about the many programs ISU Planetarium offers for preschool through high school students. Users can learn about ISU's facilities, capabilities, and services. The website also provides links to an astronomy club, and many amateur astronomy websites.

213

Child Universe Production  

NASA Astrophysics Data System (ADS)

There are solutions of Israel junction conditions that describe the detachment of a region of spacetime, a bubble, from what can be called the parent spacetime. In the past these solutions have been mostly considered in the context of inflationary cosmology (the so called baby universes). We will i) briefly review these ideas, ii) show that they can be of interest under more general settings and iii) present solutions where it is possible to create a universe at arbitrarily small energy cost. This could have interesting applications for quantum gravity and particle physics, besides cosmology.

Ansoldi, S.; Guendelman, E. I.

2007-11-01

214

Boston University Digital Common  

NSDL National Science Digital Library

Boston University has a range of scholars, from those who research the hospitality field to others who are fascinated by the world of photonics. The University's Digital Common Repository contains thousands of documents and publications that span this wide range, authored or co-authored by BU faculty, students, and staff. The different communities here are divided into sections that include College of Arts and Sciences, Centers & Institutes, and Metropolitan College. Visitors will find religious sermons, pieces of music, working economics papers, and a vast cornucopia of other materials. Also, visitors are encouraged to use the Browse feature to look for documents by title, subject, author, or date.

215

Universal Design for Academic Facilities  

ERIC Educational Resources Information Center

|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…

Salmen, John P. S.

2011-01-01

216

Will the universe expand forever  

Microsoft Academic Search

The evidence for an expansion of the universe is examined, taking into account aspects of isotropic expansion, the concept of the big bang, and questions regarding the gravitational interactions of the components of the universe. Questions concerning the correspondence of the universe to either an 'open' or a 'closed' model are investigated. If the expansion continues perpetually, the universe is

J. R. Gott III; J. E. Gunn; D. N. Schramm; B. M. Tinsley

1976-01-01

217

Will the universe expand forever  

Microsoft Academic Search

The article reviews the problems of a dynamic or static universe, isotropy throughout the universe, the Cosmological Principle, the Principle of Equivalence, and redshifts. The problem of whether the rate of expansion is greater than the velocity for escape of galaxies from the universe, and the related problem of the total mass and average mass density of the universe, are

J. E. Gunn

1975-01-01

218

The Universal Grammar of Reading  

Microsoft Academic Search

Reading has universal properties that can be seen across the world's writing systems. The most important one is the universal language constraint: All writing systems rep- resent spoken languages, a universal with consequences for reading processes. These consequences are seen most clearly at the broad principle level: the principle that reading universally requires the reader to make links to language

Charles A. Perfetti

2003-01-01

219

A Universal Phylogenetic Tree.  

ERIC Educational Resources Information Center

|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)|

Offner, Susan

2001-01-01

220

Universal energy adaptor increaser  

Microsoft Academic Search

This patent describes a universal energy adapter increaser for providing a primary and only air supply to a heater unit, having in combination, an attachment along a flue duct located between a heater unit and a chimney. The attachment consists of: a duct engaging support collar section adapted to be secured to a portion of the flue duct, a jet

Gatling

1988-01-01

221

Making ``The Mechanical Universe''  

NASA Astrophysics Data System (ADS)

``The Mechanical Universe and Beyond'' is an introductory college-level physics telecourse, including calculus, made for broadcast television and classroom use. This article describes the inception and history of the project and the techniques and strategies that were used in producing it. A project to adapt the series for use in high schools is also discussed.

Goodstein, David L.; Olenick, Richard P.

1988-09-01

222

Universities in Their Communities  

ERIC Educational Resources Information Center

|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…

Robinson, Fred

2012-01-01

223

Teaching Geomorphology at University  

ERIC Educational Resources Information Center

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)

Sugden, David; Hamilton, Patrick

1978-01-01

224

The Universe as Calorimeter  

SciTech Connect

The maturation of very high energy astrophysics has enabled many novel physics applications. Among these is the investigation of extragalactic photon fields, which in some cases encode specific calorimetric information about such things as the formation of large-scale structure and the total high-energy luminosity of the universe. The origins of these backgrounds, and techniques for probing them will be discussed.

Wakely, Scott P. [Enrico Fermi Institute, Dept. of Physics, University of Chicago, Chicago IL 60637 (United States); Kavli Institute for Cosmological Physics, University of Chicago, Chicago IL 60637 (United States)

2006-10-27

225

The Engaged University.  

ERIC Educational Resources Information Center

Discusses issues and trends in the university's mission of community service. Notes a 1999 leadership colloquium of college presidents which urged student participation in public and community service. Identifies new problems, including civic disengagement and the growing gap between rich and poor. Examines the service learning movement and offers…

Hollander, Elizabeth L.; Saltmarsh, John

2000-01-01

226

Universal Jurisdiction in Practice  

Microsoft Academic Search

This article examines the efforts to hold high-level US officials accountable for their alleged role in the torture and other serious abuse of detainees under US control through the principle of universal jurisdiction. First, it sets out what is known about United States detention and interrogation practices during the so-called ‘war on terror’, and what efforts, if any, have been

Katherine Gallagher

2009-01-01

227

Best National Universities.  

ERIC Educational Resources Information Center

|A ranking of 229 universities in the United States provides survey information concerning academic reputation, student selectivity, faculty resources, financial resources, retention, alumni giving, college entrance examination scores, freshmen's high school rank, acceptance and yield rates, student/faculty ratio, expenditures per student, class…

U.S. News & World Report, 1996

1996-01-01

228

Universal Indicator Rainbow Trout  

NSDL National Science Digital Library

In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases. Learners create colorful rainbow trout artwork using universal indicator solution and various household liquids. Safety note: learners must wear safety goggles.

Society, American C.

2001-01-01

229

Discovering the Invisible Universe.  

ERIC Educational Resources Information Center

|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)|

Friedman, Herbert

1991-01-01

230

Islamist Movement Challenges Universities  

ERIC Educational Resources Information Center

|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…

Lindsey, Ursula

2013-01-01

231

The Changing University?  

ERIC Educational Resources Information Center

|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,…

Schuller, Tom, Ed.

232

University Training Centers.  

ERIC Educational Resources Information Center

|This article focuses on the 24 Reading Recovery University Training Centers (UTCs) in North America. It notes that although each training center performs similar functions, they are all very different. It states that the first and probably the most visible function involves the wide scope of training, and that another function of the UTCs that…

Bufalino, Janet, Ed.

2000-01-01

233

University of Nevada, Reno  

ERIC Educational Resources Information Center

|A $10 million gift will help the University of Nevada, Reno (UNR), begin construction next year on a new $66 million "Knowledge Center." The donation comes in $5 million gifts from Reno-based International Game Technology (IGT), a slot machine manufacturer, and from former IGT chair Chuck Mathewson and his wife, Ann. UNR's current library was…

Library Journal, 2004

2004-01-01

234

Images of the Universe  

NASA Astrophysics Data System (ADS)

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).

Stott, Carole

1991-11-01

235

Making ``The Mechanical Universe''  

Microsoft Academic Search

``The Mechanical Universe and Beyond'' is an introductory college-level physics telecourse, including calculus, made for broadcast television and classroom use. This article describes the inception and history of the project and the techniques and strategies that were used in producing it. A project to adapt the series for use in high schools is also discussed.

David L. Goodstein; Richard P. Olenick

1988-01-01

236

Visiting the Gödel Universe  

Microsoft Academic Search

Visualization of general relativity illustrates aspects of Einstein's insights into the curved nature of space and time to the expert as well as the layperson. One of the most interesting models which came up with Einstein's theory was developed by Kurt Gödel in 1949. The Gödel universe is a valid solution of Einstein's field equations, making it a possible physical

Frank Grave; Michael Buser

2008-01-01

237

A Universe of Questions.  

ERIC Educational Resources Information Center

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…

Zeldovich, Yakov

1992-01-01

238

Colorado State University  

ERIC Educational Resources Information Center

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…

McKelfresh, David A.; Bender, Kim K.

2009-01-01

239

College and University Libraries.  

ERIC Educational Resources Information Center

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"…

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

1986-01-01

240

The Universal Trap.  

ERIC Educational Resources Information Center

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…

Goodman, Paul

241

Oregon State University  

ERIC Educational Resources Information Center

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…

Sanderson, Rebecca A.; Ketcham, Patricia L.

2009-01-01

242

Glasgow University's Buoyant Scheme.  

ERIC Educational Resources Information Center

LearningWorks, an employee development program for University of Glasgow staff, grants training allowances to pay for learning on their own time. In the first year, 43% of eligible employees participated in a wide range of accessible learning opportunities. (SK)

Maclachlan, Kathy

1998-01-01

243

Ethics in the University.  

ERIC Educational Resources Information Center

|The reputation of higher education has been tarnished by some well-publicized incidents of unethical behavior in the academy. When the university's internal politics lack integrity and honor and its players succumb to competition among institutions, higher education relinquishes its moral leadership. Unethical behavior can only be solved at the…

Pettit, Lawrence K.

1991-01-01

244

Best National Universities.  

ERIC Educational Resources Information Center

A ranking of 229 universities in the United States provides survey information concerning academic reputation, student selectivity, faculty resources, financial resources, retention, alumni giving, college entrance examination scores, freshmen's high school rank, acceptance and yield rates, student/faculty ratio, expenditures per student, class…

U.S. News & World Report, 1996

1996-01-01

245

The New Spongiform University.  

ERIC Educational Resources Information Center

|The great works of Western civilization, long held up to college students as models of human achievement, are rapidly being replaced by trivia and by multicultural and poststructural studies. With the growth of postmodern studies has come a decline in broad-based core requirements. This paper recommends rooting postmodernism out of the university

de Russy, Candace

1998-01-01

246

A Universe of Questions.  

ERIC Educational Resources Information Center

|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…

Zeldovich, Yakov

1992-01-01

247

Regional International Universities  

Microsoft Academic Search

THE leading article1 on Dr. Joseph Needham's article on ``An International Science Co-operation Service'' is opportune. We regret that Prof. G. W. Keeton's book, ``The Case for an International University'', is at present not available to us; but it is obvious that some such organization must be permanently established. We feel, however, that such a service should embrace activities much

W. C. W. Nixon; W. Laqueur

1945-01-01

248

University Instruction in HRD.  

ERIC Educational Resources Information Center

This document contains three papers presented at a symposium on university instruction in human resource development (HRD) moderated by Janice Black at the 1996 conference of the Academy of Human Resource Development (AHRD). "Facilitating Transfer of Learning from the Classroom to the Workplace" (Brenda S. Gardner, Sharon J. Korth) examines a…

1996

249

Antimatter in the universe  

SciTech Connect

The models leading to a high abundance of antimatter in the universe are discussed. Special attention is payed to the model of antimatter creation in the form of compact stellar-like objects. Such objects can contribute significantly to the cosmological dark matter. Observational signatures of antimatter in the Galaxy are discussed.

Dolgov, A. D., E-mail: dolgov@itep.ru [ITEP (Russian Federation)

2011-03-15

250

Antimatter in the universe  

Microsoft Academic Search

The models leading to a high abundance of antimatter in the universe are discussed. Special attention is payed to the model\\u000a of antimatter creation in the form of compact stellar-like objects. Such objects can contribute significantly to the cosmological\\u000a dark matter. Observational signatures of antimatter in the Galaxy are discussed.

A. D. Dolgov

2011-01-01

251

Antimatter in the universe  

Microsoft Academic Search

The models leading to a high abundance of antimatter in the universe are discussed. Special attention is payed to the model of antimatter creation in the form of compact stellar-like objects. Such objects can contribute significantly to the cosmological dark matter. Observational signatures of antimatter in the Galaxy are discussed.

A. D. Dolgov

2011-01-01

252

Life in the Universe  

ERIC Educational Resources Information Center

|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…

Lowman, Paul D., Jr.

2003-01-01

253

Age of the universe.  

National Technical Information Service (NTIS)

An overview of the current controversy on the age of the universe is presented. It is shown that the age of the oldest star, globular clusters, yields an age estimate of approximately 14 (+-) 2 (+-) 2 Gyr (where the first (+-) is statistical and the secon...

D. N. Schramm

1996-01-01

254

A Non Singular Universe  

Microsoft Academic Search

The last chapter of my PhD thesis, contained my first singularity theorem. This showed that under certain reasonable conditions, any cosmological solution of the field equations, would have a big bang singularity. At this singularity, classical general relativity would break down, so one could not use it to predict how the universe began. It was therefore necessary to develop a

Stephen Hawking

2005-01-01

255

Evolution of the Universe  

NASA Astrophysics Data System (ADS)

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).

Primack, Joel

2006-04-01

256

[University of California Archives.  

ERIC Educational Resources Information Center

|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 --…

Pratt, Carol S.

257

Oregon State University  

ERIC Educational Resources Information Center

|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…

Sanderson, Rebecca A.; Ketcham, Patricia L.

2009-01-01

258

Images of the Universe  

Microsoft Academic Search

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

Carole Stott

1991-01-01

259

Entrepreneurial Planning: Tufts University.  

ERIC Educational Resources Information Center

|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…

Dunn, John A.

1990-01-01

260

The Semmelweis University Experience  

Microsoft Academic Search

The author has worked in genetic counseling and prenatal genetic diagnosis and screening since 1966. He has been the Head of the Department of Obstetrics and Gynecology at Semmelweis University of Budapest for 10 years where he founded its center of prenatal genetics. This tertiary center aims to treat as many pregnancies with a prenatal diagnosis or suspicion of fetal

Zoltán Papp

2002-01-01

261

The Radio Universe  

NSDL National Science Digital Library

The Radio Universe website provides a brief introduction the electromagnetic radiation, HII regions, the structure of the Milky Way galaxy, and quasars as seen by radio wave observations. The site also contains an expliantion of the doppler effect and 21 cm line.

2005-06-07

262

History of the Universe  

NSDL National Science Digital Library

This interactive timeline from the NOVA Web site recaps what has happened since the theorized "Big Bang", including the birth of the earliest galaxies and of our own Sun, and it forecasts future events, from the merger of the Milky Way and Andromeda galaxies to the death of the universe.

263

Fred Hoyle's Universe  

Microsoft Academic Search

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

Jane Gregory

2005-01-01

264

Life in the Universe  

NSDL National Science Digital Library

These lecture notes adress the question: "Are we alone or are there millions of advanced life forms in the universe?" by examining life on Earth, the origin of life on Earth, the possiblity that life exists in our solar system or elsewhere.

O'Connell, Robert

2005-06-28

265

Journeying through the Universe  

NSDL National Science Digital Library

This article describes a touring education program sponsored by the National Center for Earth and Space Science Education and the Universities Space Research Association. The presentations cover topics from Earth science to space exploration and astro-biology. The program includes classroom presentations, teacher professional development, and public events.

Roeder, John

2010-07-10

266

University Student Online Plagiarism  

Microsoft Academic Search

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) What factors contribute to student online plagiarism? (e) What is student

Yu-mei Wang

2008-01-01

267

The Universal Trap.  

ERIC Educational Resources Information Center

|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…

Goodman, Paul

268

Leadership and University Libraries  

Microsoft Academic Search

This paper describes the key aspects of leadership for university library directors and staff within the context of the variety of cultures found in higher education. The ability to work at the interface of cultures is the central theme. The relationship of this theme to major areas of focus in research libraries is explored. The importance of library leadership in

Barbara I. Dewey

2005-01-01

269

The Artful Universe Expanded  

Microsoft Academic Search

The cosmos is an awfully big place and there is no better guide to its vast expanse and fascinating nooks and crannies than John Barrow. A professor of mathematical sciences at Cambridge University, Barrow embodies that rare combination of highly polished writer and expert scientist. His deft touch brings together the disparate threads of human knowledge and weaves them into

B A Bassett

2005-01-01

270

Physics at Fisk University  

Microsoft Academic Search

Fisk University was chartered in 1866 to educate former slaves at the end of the civil war. The physics department was started in 1931 under the chairmanship of Dr. Elmer Imes, Fisk 1903, a research physicist in the field of infrared (IR) spectroscopy. After Imes' death in 1941, one of his early physics majors, James Lawson, became chair and soon

Ronald Mickens

2005-01-01

271

Black Holes and the Universe  

NASA Astrophysics Data System (ADS)

Part I. Black Holes: 1. What is a black hole?; 2. Around a black hole; 3. A gravitational abyss as an energy source; 4. The search for black holes; 5. Black holes and quanta; Part II. To The Bounds Of Infinity: 1. The Universe after the explosion; 2. Mechanics of the Universe; 3. The hot Universe; 4. Neutrino Universe or '... ino' Universe?; 5. At the frontiers of the known; Conclusion.

Novikov, Igor D.; Kisin, Vitaly

1995-09-01

272

The Mechanical Universe  

NASA Astrophysics Data System (ADS)

Preface; 1. Introduction to the mechanical universe; 2. The law of falling bodies; 3. The language of nature: derivatives and integrals; 4. Inertia; 5. Vectors; 6. Newton's laws and equilibrium; 7. Universal gravitation and circular motion; 8. Forces; 9. Forces in accelerating reference frames; 10. Energy: conservation and conversion; 11. The conservation of momentum; 12. Oscillatory motion; 13. Angular momentum; 14. Rotational dynamics for rigid bodies; 15. Gyroscopes; 16. Kepler's laws and the conic sections; 17. Solving the Kepler problem; 18. Navigating in space; 19. Temperatures and the gas laws; 20. The engine of nature; 21. Entropy; 22. The quest for low temperature; Appendix A. The international system of units; Appendix B. Conversion factors; Appendix C. Formulas from algebra, geometry, and trigonometry; Appendix D. Astronomical data; Appendix E. Physical constraints; Selected bibliography; Index.

Frautschi, Steven C.; Olenick, Richard P.; Apostol, Tom M.; Goodstein, David L.

2008-04-01

273

Universal Test Facility  

NASA Astrophysics Data System (ADS)

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.

Laughery, Mike

274

Universal newborn hearing screening  

PubMed Central

The present statement reviews the evidence for universal newborn hearing screening (UNHS). A systematic review of the literature was conducted using Medline and using search dates from 1996 to the third week of August 2009. The following search terms were used: neonatal screening AND hearing loss AND hearing disorders. The key phrase “universal newborn hearing screening” was also searched. The Cochrane Central Register of Controlled Trials and systematic reviews was searched. Three systematic reviews, one controlled non-randomized trial and multiple cohort studies were found. It was determined that there was satisfactory evidence to support UNHS. The results of the available literature are consistent and indicate clear evidence that without UNHS, delayed diagnosis leads to significant harm for children and their families; with UNHS, diagnosis and intervention occur earlier; earlier intervention translates to improved language outcomes; and in well-run programs, there is negligible harm from screening.

Patel, H; Feldman, M

2011-01-01

275

NOVA: The Elegant Universe  

NSDL National Science Digital Library

This NOVA website "introduces string theory and Albert Einstein's dream of unifying the forces that underlie all phenomena in the physical universe." Visitors can learn about the concept's possible role in unifying the four forces of nature. Students and educators can watch fascinating slide shows of physicists working with particle accelerators; interesting animations of resonance affects on cotton string; the three-hour mini-series, The Elegant Universe; and much more. The Teacher's Guide can help users take full advantage of the educational value of the materials. Anyone curious about the idea that the world can be made of numerous dimensions and made out of strings will enjoy this site. This site is also reviewed in the September 17, 2004 _NSDL Physical Sciences Report_.

276

The quintessential universe  

NASA Astrophysics Data System (ADS)

Recent evidence suggests that most of the energy in the universe consists of some form of dark energy that is gravitationally self-repulsive and that is causing the expansion rate of the universe to accelerate. We review the evidence, including recent measurements of the cosmic microwave background by the DASI, BOOMerang and MAXIMA groups. The dark energy may consist of vacuum energy density (or, equivalently, a cosmological constant), or quintessence, a time-evolving, spatially inhomogeneous component with negative pressure. A key problem is to explain the initial conditions required to have the energy density nearly coincident with the matter density today. A possible solution is ``k-essence,'' a form of quintessence with an attractor-like solution which leads to cosmic acceleration today for a very wide range of initial conditions without fine-tuning and without invoking an anthropic argument. .

Steinhardt, Paul J.

2001-10-01

277

Universality in oscillating flows.  

PubMed

We show that oscillating flow of a simple fluid in both the Newtonian and the non-Newtonian regime can be described by a universal function of a single dimensionless scaling parameter omega tau, where omega is the oscillation (angular) frequency and tau is the fluid relaxation time; geometry and linear dimension bear no effect on the flow. Energy dissipation of mechanical resonators in a rarefied gas follows this universality closely in a broad linear dimension (10(-6) m < L < 10(-2) m) and frequency (10(5) Hz < omega/2pi < 10(8) Hz) range. Our results suggest a deep connection between flows of simple and complex fluids. PMID:19437646

Ekinci, K L; Karabacak, D M; Yakhot, V

2008-12-31

278

Beyond universal precautions.  

PubMed Central

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.

Osterman, J W

1995-01-01

279

The radioactive universe.  

SciTech Connect

In a large class of extra-dimensional models, a scalar degree of freedom known as the radion is long-lived, or even stable, on cosmological scales. In this paper we investigate the impact of radionactivity on the evolution of the universe. We demonstrate that whether the radion overcloses the universe, constitutes the dark matter, is the inflaton, the curvaton, or does not play any role in cosmology, depends crucially on the ratio between the energy densities stored in the radion and in the inflaton at the time of inflation. We discuss the general difficulties in reconciling models with low compactification scale (i.e., TeV scale) with the simple picture of inflation.

Kolb, E. W.; Servant, G.; Tait, T. M. P.; High Energy Physics; Univ. of Chicago; FNAL

2003-07-28

280

Stephen Hawking's Universe  

NSDL National Science Digital Library

This companion site to a six part Public Broadcasting System series that began October 13, 1997 features a series of essays by Astronomy Magazine associate editor Richard Talcott (the first two of which, Seeing is Believing, and In the Beginning are available at present). These essays discuss the great cosmological questions of the origins of the universe. There are also brief explanations for complex cosmological phenomena (Strange Stuff Explained) from antimatter to Hubble's Law to wormholes; short biographies of seventeen giants of cosmology including Copernicus, Eratosthenes, and Newton; explanations of eleven different universes from flat earth to steady state to big bang; and unsolved mysteries, where leading cosmologists discuss these very large, unanswered questions (three articles are available at present). A Teacher's Guide (Adobe Acrobat [.pdf] format only) and Ask the Experts sections round out this site. A link section is forthcoming.

1997-01-01

281

Universal Indicator Rainbow Trout  

NSDL National Science Digital Library

In this activity, learners cut out a fish and then "paint" it using universal indicator and acids and bases. The initial coat of indicator changes the color of the paper (it will turn a salmon color if the paper is acidic, and green if it is considered acid-free). From there, adding acids (such as lemon juice) and bases (such as laundry detergent) will further change the color. Universal indicator responds to a wide range of acids and bases, so other home chemicals (shampoo, vinegar, etc.) could be tried to create different colors. For older learners, a paper pattern other than a "rainbow trout" (such as a rainforest bird or other colorful animal) can be used.

Society, American C.

2008-01-01

282

The Dark Universe  

NASA Astrophysics Data System (ADS)

1. A brief history of dark matter Vera Rubin; 2. Microlensing towards the Magellanic Clouds Kailash Sahu; 3. Searching for galactic dark matter Harvey Richer; 4. Hot gas in clusters of galaxies and Omega Megan Donahue; 5. Tracking the Baryon density from the Big Bang to the present Gary Steigman; 6. Modified Newtonian dynamics and its implications Bob Sanders; 7. Cosmological parameters and quintessence from radio galaxies Ruth Daly and Eric Guerra; 8. The mass density of the Universe Neta Bahcall; 9. Growth of structure in the Universe John Peacock; 10. Cosmological implications of the most distant supernova (known) Adam Riess; 11. Dynamical probes of the Halo mass function Chris Kochanek; 12. Detection of gravitational waves from inflation Marc Kamionkowski and Andrew Jaffe; 13. Cosmological constant problems and their solution Alex Vilenkin; 14. Dark Matter and dark energy: a physicist's perspective Michael Dine.

Livio, Mario

2004-02-01

283

The Dark Universe  

NASA Astrophysics Data System (ADS)

1. A brief history of dark matter Vera Rubin; 2. Microlensing towards the Magellanic Clouds Kailash Sahu; 3. Searching for galactic dark matter Harvey Richer; 4. Hot gas in clusters of galaxies and Omega Megan Donahue; 5. Tracking the Baryon density from the Big Bang to the present Gary Steigman; 6. Modified Newtonian dynamics and its implications Bob Sanders; 7. Cosmological parameters and quintessence from radio galaxies Ruth Daly and Eric Guerra; 8. The mass density of the Universe Neta Bahcall; 9. Growth of structure in the Universe John Peacock; 10. Cosmological implications of the most distant supernova (known) Adam Riess; 11. Dynamical probes of the Halo mass function Chris Kochanek; 12. Detection of gravitational waves from inflation Marc Kamionkowski and Andrew Jaffe; 13. Cosmological constant problems and their solution Alex Vilenkin; 14. Dark Matter and dark energy: a physicist's perspective Michael Dine.

Livio, Mario

2010-04-01

284

University of Illinois Extension  

NSDL National Science Digital Library

The University of Illinois Extension's catchphrase is "Your doorway to the University," and this website offers exactly that. The Extension's work is designed to create learning partnerships that put knowledge to work in areas including food security and safety, environmental stewardship, and sustainable and profitable food production and marketing systems. Over 2.5 million Illinois residents take part in Extension programs every year, and many people visit this website to download and view their web-based materials. On the homepage, visitors can use the Learn more about⦠area to investigate topics such as commercial agriculture, energy, and natural resources and the environment. Each of these areas contains helpful lessons, fact sheets, and more dealing with topics as varied as firewood in Illinois, choosing a financial professional, and growing strawberries. Visitors can also use the Today's Events area to browse through upcoming events sponsored by Extension, or follow Extension on a range of social media.

2013-01-01

285

Universal quantum interfaces  

SciTech Connect

To observe or control a quantum system, one must interact with it via an interface. This article exhibits simple universal quantum interfaces--quantum input/output ports consisting of a single two-state system or quantum bit that interacts with the system to be observed or controlled. It is shown that under very general conditions the ability to observe and control the quantum bit on its own implies the ability to observe and control the system itself. The interface can also be used as a quantum communication channel, and multiple quantum systems can be connected by interfaces to become an efficient universal quantum computer. Experimental realizations are proposed, and implications for controllability, observability, and quantum information processing are explored.

Lloyd, Seth [D'Arbeloff Laboratory for Information Systems and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Landahl, Andrew J. [Center for Bits and Atoms, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); HP Labs, Palo Alto, California 94304-1126 (United States); Slotine, Jean-Jacques E. [Nonlinear Systems Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2004-01-01

286

Origin (?) of the universe  

Microsoft Academic Search

In this part of the series we look at the simplest cosmological models based on the simplifying assumptions of the Weyl postulate\\u000a and the cosmological principle. These models were discovered independently by Friedmann, Lemaitre and Robertson in the 1920s.\\u000a They led to the striking conclusion that the universe started in an enormous explosion often called the Big Bang.

Jayant V. Narlikar

1996-01-01

287

On the Stephani universes.  

NASA Astrophysics Data System (ADS)

The spacetimes corresponding to a weak version of the cosmological principle are considered. It appears that, starting from very different criteria, they were already obtained by Stephani and studied by Krasinski and Barnes. The only barotropic universes of this class are the Friedmann-Robertson-Walker ones. Among the others, some admit a general thermodynamic scheme; it is shown that, as for barotropic fluids, such a scheme also imposes additional symmetries.

Bona, Carles; Coll, Bartolomé

1988-03-01

288

The Molecular Universe  

NASA Astrophysics Data System (ADS)

During the last decade it has become more and more clear that the molecular universe is widespread and very diverse. The near and mid IR spectra of the diffuse interstellar medium of the Milky Way and other galaxies is dominated by the vibrational emission of large (50 C-atoms) Polycyclic Aromatic Hydrocarbon molecules. These emission features are also bright in many regions of massive star formation as well as in the ashes expelled by stars in their death throes. These ubiquitous molecules lock up about 1-10 % of all the available elemental carbon. It is now also clear that the Diffuse Interstellar Bands in the visible spectral range - which have presented a spectroscopic enigma since their discovery 75 years ago - are due to electronic transitions of interstellar molecules. Besides these PAHs, likely candidates include acetylenic C-chains and fullerenes. Similarly, spectroscopic studies of the rotational, millimeter and submillimeter spectra of molecular clouds - the birthsites of new stars - have revealed a rich inventory of molecules which increases at a pace of about 5 new molecules a year for the last 25 years. Molecules have now been discovered as far back as z = 4.7 when the first burst of star formation accompanied galaxy formation in the universe. Indeed, cooling by molecules probably played as key a role in star formation at that time as it does in the present universe. In the solar system, the chemical composition of comets still attests to its heritage of the interstellar cloud from which the solar system formed 4.5 billion years ago, while carbonaceous meteorites display a very diverse pattern of organic species including a wide variety of amino acids many of which are unknown in nature on Earth. This talk will review the richness of the molecular universe and the processes that play a role in the origin and evolution of these species.

Tielens, A. G. G. M.

289

Tulane University: Radiometric Dating  

NSDL National Science Digital Library

The fourth website, developed by Professor Stephen A. Nelson at Tulane University, provides a detailed mathematical explanation of the principles of radiometric dating. The site is divided into sections which include: Principles of Radiometric Dating; The Rb/Sr System; The U, Th, Pb System; and The Age of the Earth. Other dating methods are covered briefly as well, such as potassium argon (K-Ar) dating and carbon-14. Professor Nelson concludes with a description of other users of isotopes.

Nelson, Stephen A.

2008-03-12

290

Universally Quantified Interval Constraints  

Microsoft Academic Search

Non-linear real constraint systems with universally and\\/or existentially quantified variables often need be solved in such contexts as control design or sensor planning. To date, these systems are mostly han- dled by computing a quantifier-free equivalent form by means of Cylindri- cal Algebraic Decomposition (CAD). However, CAD restricts its input to be conjunctions and disjunctions of polynomial constraints with rational

Frédéric Benhamou; Frédéric Goualard

2000-01-01

291

The horizonless universe  

NASA Astrophysics Data System (ADS)

A closed microuniverse that inflates into a macrouniverse loses its particle horizon. The conditions for this rule to apply are discussed. A particular model illustrates how the particle horizon, which limits the range of causal connections, vanishes permanently into the antipode as a result of inflation. Such a closed universe may display in vestigial form on the scale of superclusters the polytopal structure of the original microuniverse.

Harrison, Edward

1993-04-01

292

Inflation in the universe  

SciTech Connect

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.

Turner, M.S.

1987-05-01

293

Creating Adaptable Universities  

Microsoft Academic Search

Shifting demographics, rising costs of operations, a changing competitive landscape, reductions in state appropriations, pressures\\u000a for accountability, and a widespread economic decline characterize the environment in which today’s colleges and universities\\u000a operate. This article examines some of the current responses to these challenges and outlines opportunities for advancing\\u000a the mission of higher education in the 21st century. The topics covered

Graham B. Spanier

2010-01-01

294

Universal Seed Skin Segmentation  

Microsoft Academic Search

\\u000a We present a principled approach for general skin segmentation using graph cuts. We present the idea of a highly adaptive\\u000a universal seed thereby exploiting the positive training data only. We model the skin segmentation as a min-cut problem on\\u000a a graph defined by the image color characteristics. The prior graph cuts based approaches for skin segmentation do not provide\\u000a general

Rehanullah Khan; Allan Hanbury; Julian Stöttinger

2010-01-01

295

Universality and Halo Nuclei  

Microsoft Academic Search

Universal aspects of few-body systems will be reviewed motivated by recent interest in atomic and nuclear physics. The critical conditions for the existence of excited states in three-body systems with two-identical particles will be explored. In particular, we consider halo nuclei that can be modeled as three-body nuclear systems, with two halo neutrons and a core. In this context, we

Tomio Lauro

2010-01-01

296

Life in the Universe  

Microsoft Academic Search

The possibility of extra-terrestrial life and intelligence is examined. It is found that the scientific case for extra-terrestrial intelligence is very weak; theological considerations render it improbable, but not def i- nitely impossible. The case against more primitive extra-terrestrial life is much weaker. . Is the earth the only cradle of life in the physical universe? Is man alone? Or

Gerald Feinberg; John Billingham

1983-01-01

297

Microprogramming at Vanderbilt University  

Microsoft Academic Search

The Computer Science Department of Vanderbilt University is actively pursuing a research program in microprogramming and related engineering. Projects at this time are being directed by Dr. Robert I. Winner with the participation of several graduate students, E. Michael Carter (Ph.D candidate), J. Eric Roskos (Ph.D student), Leonard B. Reed (Ph.D student), Thomas M. Wood (M.S. student), and Richard L.

R. I. Winner

1983-01-01

298

University of Pennsylvania  

Cancer.gov

A Small Animal Imaging Research program is proposed at U. Penn. (Penn-SAIR) supporting cancer research at Penn, the Wistar Institute, the Children's Hospital of Philadelphia (CHOP), the Lankenau Institute for Medical Research and Thomas Jefferson University; it will be available to other institutions within the Philadelphia region and world-wide. The program builds on a fully self-supported existing Small Animal Research Facility (SAIF).

299

A Private Universe Project  

NSDL National Science Digital Library

The Private Universe Teachers Lab enables teachers to practice techniques of identifying student misconceptions and moving toward conceptual change in basic astronomy. This teachers lab contains a survey to identify misconceptions and three in-class activities for grades 4 to 8 that help students gain an understanding of the phases of the Moon. There are teacher discussion forums on planning teaching sequences and learning how to adapt activities to different situations.

Schneps, Matthew; Sadler, Philip

2007-12-12

300

Quantum creation of universes  

Microsoft Academic Search

A cosmological wave function describing the tunneling of the universe from ''nothing'' into a de Sitter space is found in a simple minisuperspace model. The tunneling probability is proportional to exp(-3\\/8G²rho\\/sub v\\/), where rho\\/sub v\\/ is the vacuum energy density at an extremum of the effective potential V(phi). The tunneling is most probable to the highest maximum of V(phi).

Alexander Vilenkin

1984-01-01

301

Universal Blaschke products  

Microsoft Academic Search

We extend a result of M. Heins by showing that for any sequence of points (z_n) in the unit disk {Bbb D} tending to the boundary, there is a Blaschke product B which is universal for noneuclidian translates in the sense that the set \\\\{B((z {+} z_n)\\/(1 {+} \\/line{z}_nz)) {:} n {in} {Bbb N}\\\\} is locally uniformly dense in the

Pamela Gorkin; Raymond Mortini

2004-01-01

302

[Universal electrogustometer EG-2].  

PubMed

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. PMID:21735666

Wa?kanis, Andrzej; Czesak, Micha?; Pleskacz, Witold A

303

Universally coupled massive gravity  

NASA Astrophysics Data System (ADS)

We derive Einstein’s equations from a linear theory in flat space-time using free-field gauge invariance and universal coupling. The gravitational potential can be either covariant or contravariant and of almost any density weight. We adapt these results to yield universally coupled massive variants of Einstein’s equations, yielding two one-parameter families of distinct theories with spin 2 and spin 0. The Freund-Maheshwari-Schonberg theory is therefore not the unique universally coupled massive generalization of Einstein’s theory, although it is privileged in some respects. The theories we derive are a subset of those found by Ogievetsky and Polubarinov by other means. The question of positive energy, which continues to be discussed, might be addressed numerically in spherical symmetry. We briefly comment on the issue of causality with two observable metrics and the need for gauge freedom and address some criticisms by Padmanabhan of field derivations of Einstein-like equations along the way.

Pitts, J. B.; Schieve, W. C.

2007-05-01

304

Manual for Afterschool Universe  

NSDL National Science Digital Library

This astronomy program is designed for middle school children in out-of-school-time settings. The program explores basic astronomy concepts (like invisible light, telescopes) and focuses on the universe outside the solar system (stars, galaxies, black holes). By offering programming on these topics outside of the classroom, where schedules are less constrained, Afterschool Universe engages students in science and keeps them interested. Afterschool Universe consists of 12 sessions, each typically requiring 45-60 minutes for implementation. The program is flexibly structured for use in a variety of settings, including astronomy days, summer camps, or year-long afterschool programming. Although sessions build concepts when attended sequentially, each session is intended to be freestanding as not all participants may attend every session. A comprehensive manual provides background information and detailed descriptions of how to conduct each activity. The manual has been written for leaders with little science background. A companion Wweb siteWeb site provides additional information and resources for the program leader. All the activities are done âin the real worldâ and do not require a computer. Suggestions for optional web-based activities are provided for locations with computers or for at-home extensions.

Krishnamurthi, Anita

2009-04-23

305

The Universal Ancestor  

NASA Astrophysics Data System (ADS)

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.

Woese, Carl

1998-06-01

306

Universe: The Origin and Evolution of the Universe  

NSDL National Science Digital Library

This Science Object is the fifth of five Science Objects in the Universe SciPack. It provides understanding of how the universe formed, how it has changed over time, and how it continues to change today. The 'big bang' theory of universe formation is supported by recent observations of the motion of galaxies, as well as observations of the energy left over from the formation of the universe. This evidence suggests that the origin of the universe occurred approximately 13.6 billion years ago, during a point in time when the state of the universe was much hotter and more dense. The fact that light seen from almost all distant galaxies has longer wavelengths than comparable light here on earth provides evidence that the whole universe has been expanding ever since the big bang (and continues to expand today). Learning Outcomes:� Provide a basic description of the conditions at the beginning of the universe.� Give the approximate age of the universe.� Recognize the scientific account of the current state of the universe given different explanations.� Explain the evidence for an expanding universe.� Describe, in simple terms, how scientists use observations of position and motion to learn about objects in the universe.

National Science Teachers Association (NSTA)

2006-11-01

307

From Teacher-Education University to Comprehensive University: Case Studies of East China Normal University, Southwest University and Yanbian University  

ERIC Educational Resources Information Center

|Three different "logics"--that of the internal strategies of the institutions, the economic pressures of the socialist market economy and the political policies of the state drive the development of a university. The dynamic interaction and coexistence of the three logics has determined the transformation models of teacher-education or normal…

Li, Mei

2010-01-01

308

Counseling at universities in Sweden  

Microsoft Academic Search

Counseling at Swedish universities started with departmental assistants who gave information about books, schedules, etc. Jobs for counselors began in 1969 arising from a labour market adapted university reform which resulted in an increased need for counseling.

Gunilla Bjorklund

1983-01-01

309

ERDA University Conference Proceedings, 1975.  

National Technical Information Service (NTIS)

The first ERDA-University Conference was held in order to more fully explore possible cooperative efforts between ERDA and the academic community. The 400 college and university faculty and administrators attending heard presentations from ten ERDA Senior...

1975-01-01

310

Online Short Course: The Universe  

NSDL National Science Digital Library

Looking to expand your horizons this summer? Join us for the new NSTA Online Short Course: The Universe . This short course will explore the ways scientists learn about the universe and the current ideas about the origins and f

1900-01-01

311

Academic libraries and university presses  

Microsoft Academic Search

In recent years university presses have undergone some significant changes, such as expansion of their scope to include materials\\u000a that may have appeal beyond the scholarly market. This article investigates, through the use of a survey of university libraries,\\u000a the acquisition of university press products by libraries. In general, recent years have been changes in the relationship\\u000a between university presses

John M. Budd

1991-01-01

312

Organisational Challenges for the University.  

ERIC Educational Resources Information Center

Discusses the most suitable organizational model for the university, considering its unique role and needs, and the challenges currently faced in a knowledge-oriented society. Suggests that the university's academic organization become more organic and adapt to the different organizational requirements of the two central university activities,…

Santos, Filipe; Heitor, Manuel V.; Caraca, Joao

1998-01-01

313

Faculty Handbook. Duke University, 1972.  

ERIC Educational Resources Information Center

|University administration, faculty composition and organization, professional affairs of the faculty, faculty compensation and benefits, student-faculty affairs, and university libraries, resources and services, and publications are described in the 1972 Duke University handbook. Faculty-related policies and procedures are presented with regard…

Duke Univ., Durham, NC.

314

Remembering the University of Utah.  

ERIC Educational Resources Information Center

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);…

Haglund, Elizabeth, Ed.

315

Gravity and the Expanding Universe  

NSDL National Science Digital Library

This lesson explores the idea of the expanding universe through video, text and questions. Discussion includes the cosmological constant, a universal force that opposes gravity which Albert Einstein called his biggest blunder, rate of expansion of the universe and dark energy. Registration is required and is free.

316

Symbiosis: University/School Partnerships.  

ERIC Educational Resources Information Center

|Describes technology integration at Seton Hall. Discusses new teaching roles and methods; technology and popular culture; technological equity; and school and university needs. Focuses on several technology-based partnerships between the university and schools, including summer programs; technology training; connecting university faculty and…

Skeele, Rosemary W.; Daly, James K.

1999-01-01

317

Decoherence in an accelerated universe  

NASA Astrophysics Data System (ADS)

In this paper we study the decoherence of the semiclassical branches of an accelerated universe. We use a third quantization formalism to analyze the decoherence between two branches of a parent universe caused by their interaction with the vacuum fluctuations of the space-time and with other parent universes in a multiverse scenario.

Robles-Pérez, S.; Alonso-Serrano, A.; González-Díaz, P. F.

2012-03-01

318

Education in a Research University  

ERIC Educational Resources Information Center

|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"…

Arrow, Kenneth J. Ed.; And Others

319

Do Universities Have "Successful" Brands?  

ERIC Educational Resources Information Center

|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…

Chapleo, Chris

2005-01-01

320

The University and Its Communities  

ERIC Educational Resources Information Center

|This article analyses the engagement of universities with the community in three domains: the consequences of the university simply "being there", contractual and other partnerships, and the relationship between the institution and its members. The consequences are then explored for the values espoused and practiced by the universities, including…

Watson, David

2007-01-01

321

Cooperation among Ontario University Libraries.  

ERIC Educational Resources Information Center

This report, commissioned by the Council of Ontario Universities (COU) with input from the Board for Library Coordination and the Ontario Council of University Libraries, makes recommendations for extending university library cooperation in Ontario, and reviews and evaluates the history, development, and present state of Ontario's cooperative…

Peel, Bruce; Kurmey, William J.

322

University Effect on Regional Inovation  

Microsoft Academic Search

This paper analyzes empirically whether expansion of a university system affects local industry innovation. We examine how the opening of new university faculties in Italy during 1985-2000 affected regional innovation systems. We find that creation of a new university faculty increased regional innovation activity already within five years. On average, an opening of a new faculty has led to a

Robin Cowan; Natalia Zinovyeva

2009-01-01

323

Cullman Hall of the Universe  

NSDL National Science Digital Library

This Web site was created to complement the Museum's Cullman Hall of the Universe, which provides insight into how the universe evolved into galaxies, stars, and planets. The site includes the following sections Planets Zone, Stars Zone, Galaxies Zone and Universe Zone. Two virtual tours of the Hall are also available.

324

Colleges and Universities as Citizens.  

ERIC Educational Resources Information Center

This collection of 10 essays focuses on the role of colleges and universities as engaged citizens seeking to better their communities. The essays include: (1) "Colleges and Universities as Citizens: Issues and Perspectives" (Robert G. Bringle, Richard Games, and Edward A. Malloy); (2) "Ernest L. Boyer: Colleges and Universities as Citizens"…

Bringle, Robert G., Ed.; Games, Richard, Ed.; Malloy, Edward A., Ed.

325

University of Otago: Transterm  

NSDL National Science Digital Library

Supported by the University of Otago, the Health Research Council, and the Royal Society of New Zealand, Transterm is "an interactive database providing access to RNA sequences and their associated motifs. The RNA sequences are derived from all gene sequence data in Genbank, including complete genomes, divided into putative 5' and 3' UTRs, initiation and termination regions and the full CDS sequences." The Transterm website contains an extensive help browser with information regarding: the History and Direction of Transterm; Scan-for-Matches Pattern Rules; How Short Species Names are Constructed; RSCU Tables; and much more.

326

Messengers of the universe  

NASA Astrophysics Data System (ADS)

The observation of the solar neutrinos and of a neutrino burst from the supernova explosion 1987A opened a new observation field which in the next years could be complemented with the detection of astrophysical highenergy neutrinos. Neutrino astronomy is a young discipline derived from the fundamental necessity of extending conventional astronomy beyond the usual electro-magnetic messengers. This is a summary of recent results on those new "messengers of the universe", based on the presentations in Branch IV of the Neutrino Oscillation Workshop 2010 (NOW2010).

Becker, J. K.; Spurio, M.

2011-08-01

327

Sizing Up the Universe  

NSDL National Science Digital Library

In this online interactive challenge, learners choose items to represent the Earth or solar system, then determine other items to represent the Moon, or Milky Way based on their relative size. The question mark button in the bottom right corner provides learners with useful background information and definitions like "What is a planet?" Learners can also see relative distances by using an online map and typing in their own addresses. Use this activity to introduce learners to elements of the universe (planets, moons) as well as size and scale. The activity also features several informative videos.

Binns, Steve; Studies, Smithsonian C.

2010-01-01

328

The Universal Troubleshooting Process  

NSDL National Science Digital Library

The Universal Troubleshooting Process (UTP) is an abbreviated version of the book Troubleshooting Techniques of the Successful Technologist by Steve Litt. UTP consists of ten steps designed to help modern workers diagnose the system in question and ultimately repair it. The process is very general and can be applied to virtually any well-defined system. Each step of the process is carefully outlined and can be easily followed. The Web site also has links to applicable articles from Steve Litt's online Troubleshooting Professional Magazine. UTP is a clever and original approach to troubleshooting technical systems.

Litt, Steve.

2006-01-24

329

Infrared Universe Poster  

NSDL National Science Digital Library

This educational poster contains images and information about what the universe looks like in the infrared. The back contains nine 8.5 in. x 11 in. panels that explain what infrared light is and why infrared astronomy is important. It also discusses light and the different colors and wavelengths of the electromagnetic spectrum. It explains atmospheric transmission and how infrared observations help in the search for planets. The back panels also contain details on the Herschel experiment. In a very simple way it teaches the students how Herschel discovered infrared light.

2010-08-19

330

Indiana University Optometry Library  

NSDL National Science Digital Library

This website provides a vast array of syllabi, slides, and class notes for a wide variety of optometry related classes. Class related materials range from Ocular Disease, to Optometric Gerontology and Geriatrics, to Low Vision and Rehabilitation and Anatomy of Vision to name only a few. Each class offers different types of materials but they were all created by professors from Indiana University and often provide other valuable links and well as contact information for the creator. This site would prove extremely useful for an instructor in an optometry or ophthalmology related course.

2006-12-26

331

University of Missouri  

Cancer.gov

The overall goal of the Center for Single Photon-Emitting Cancer Imaging Agents at the University of Missouri-Columbia (MU) is to foster interdisciplinary research to enable development of novel radiolabeled molecular imaging agents capable of selective in vivo uptake and retention in cancer cells. The Research Components and Development Projects supported by this grant are primarily focused on identification of single-photon emitting, site-directed in vivo targeting biomolecular-conjugates directed to cell surface receptors, antigens and angiogenesis markers with high specificity.

332

University of Arizona: Biochemistry  

NSDL National Science Digital Library

This University of Arizona website provides numerous chemistry tutorials and problem sets primarily for biology students. The lessons are divided into two main categories: chemistry of life and energy reactions. Students can find clear, in-depth explanations of amino acids, pH levels, photosynthesis, metabolism, and more. Each section is filled with helpful, colorful images. The website provides outside resources which cover additional topics in biochemistry. Biochemistry students will surely find these tutorials to be a great addition to their classroom learning experience.

333

University of Pittsburgh  

Cancer.gov

The University of Pittsburgh as assembled a multidisciplinary team of researchers under the support of the Quantitative Imaging Network to address a vital need for quantitative assessment of cancer therapy response. CT and standard MRI decreases in FDG uptake after the first chemotherapy cycle correlate with better outcome. F-18 FLT PET measures cell proliferation rate, another fundamental process in malignancy. Apoptosis is the primary mechanism of action of most anticancer drugs and can be monitored by the novel PET tracer F-18 ApoSense.

334

Establishment of a comprehensive epilepsy center in pakistan: initial experiences, results, and reflections.  

PubMed

Background. Developing countries, home to 80% of epilepsy patients, do not have comprehensive epilepsy surgery programs. Considering these needs we set up first epilepsy surgery center in Pakistan. Methods. Seventeen teleconferences focused on setting up an epilepsy center at the Aga Khan University (AKU), Karachi, Pakistan were arranged with experts from the University of Alberta Hospital, Alberta, Canada and the University of West Virginia, USA over a two-year period. Subsequently, the experts visited the proposed center to provide hands on training. During this period several interactive teaching sessions, a nationwide workshop, and various public awareness events were organized. Results. Sixteen patients underwent surgery, functional hemispherectomy (HS) was done in six, anterior temporal lobectomy (ATL) in six, and neuronavigation-guided selective amygdalohippocampectomy (SAH) using keyhole technique in four patients. Minimal morbidity was observed in ATL and, SAH groups. All patients in SAH group (100%) had Grade 1 control, while only 5 patients (83%) in ATL group, and 4 patients (66%) in HS group had Grade 1 control according to Engel's classification, in average followups of 12 months, 24 months and 48 months for SAH, ATL, and HS, respectively. Conclusion. As we share our experience we hope to set a practical example for economically constrained countries that successful epilepsy surgery centers can be managed with limited resources. PMID:22957232

Tahir, M Zubair; Sobani, Zain A; Quadri, S A; Ahmed, S Nizam; Sheerani, Mughis; Siddiqui, Fowzia; Boling, Warren W; Enam, Syed Ather

2012-02-12

335

Open Universities in India 2000: Brief Information.  

ERIC Educational Resources Information Center

|This report contains information on the following open universities in India: (1) Indira Gandhi National Open University; (2) Dr. B.R. Ambedkar Open University; (3) Kota Open University; (4) Nalanda Open University; (5) Yashwantrao Chavan Maharashtra Open University; (6) Madhya Pradesh Bhoj (Open) University; (7) Dr. Babasaheb Ambedkar Open…

Bhushan, Bharat, Comp.; Lele, Nalini A., Comp.; Rausaria, R. R., Comp.

336

The Mechanical Universe  

NASA Astrophysics Data System (ADS)

Preface; 1. Introduction to the mechanical universe; 2. The law of falling bodies; 3. Derivatives; 4. Inertia; 5. Vectors; 6. Newton's law; 7. Integration; 8. The apple and the moon; 9. Moving in circles; 10. Forces; 11. Gravity, electricity, and magnetism; 12. The Milliken oil-drop experiment; 13. The law of conservation of energy; 14. Energy and stability; 15. Temperature and the gas laws; 16. The engine of nature; 17. Entropy; 18. The quest for low temperatures; 19. The conservation of momentum; 20. Harmonic motion; 21. Resonance; 22. Coupled oscillators and waves; 23. Angular momentum; 24. Gyroscopes; 25. Kepler's laws and the conic sections; 26. Solving the Kepler problem; 27. Energy and eccentricity; 28. Navigating in space; 29. Loose ends and black holes; 30. The harmony of the spheres: an overview of the mechanical universe; Appendix A. The international system of units; Appendix B. Conversion factors; Appendix C. Formulas from algebra, geometry, and trigonometry; Appendix D. Astronomical data; Appendix E. Physical constants; Selected bibliography; Index.

Olenick, Richard P.; Apostol, Tom M.; Goodstein, David L.

2008-06-01

337

University of Missouri Extension  

NSDL National Science Digital Library

Many state universities have fabulous extension programs, and the University of Missouri is no exception. The website provides access to a cornucopia of material that will be of use to both those in the Show-Me State and those beyond its borders. A good place to start on the site is the In Demand area. Here, visitors can learn about building a compost bin, soil testing, plant diagnostics, real-time weather, and so on. Along the top of the site are nine sections that include Natural Resources, Nutrition and Health, and Business and Careers. Each of these sections includes news updates, high-quality fact sheets, and annotated lists of valuable external links, such as those to the Missouri Master Naturalist site. Back on the homepage, visitors can take advantage of the Calendar area to learn about upcoming events. Finally, visitors shouldn't miss the Wild Thing of the Week. Here they will find profiles of the acrobat ant, the viceroy caterpillar, and other things that run wild in Missouri.

338

Universality of weak selection  

NASA Astrophysics Data System (ADS)

Weak selection, which means a phenotype is slightly advantageous over another, is an important limiting case in evolutionary biology. Recently, it has been introduced into evolutionary game theory. In evolutionary game dynamics, the probability to be imitated or to reproduce depends on the performance in a game. The influence of the game on the stochastic dynamics in finite populations is governed by the intensity of selection. In many models of both unstructured and structured populations, a key assumption allowing analytical calculations is weak selection, which means that all individuals perform approximately equally well. In the weak selection limit many different microscopic evolutionary models have the same or similar properties. How universal is weak selection for those microscopic evolutionary processes? We answer this question by investigating the fixation probability and the average fixation time not only up to linear but also up to higher orders in selection intensity. We find universal higher order expansions, which allow a rescaling of the selection intensity. With this, we can identify specific models which violate (linear) weak selection results, such as the one-third rule of coordination games in finite but large populations.

Wu, Bin; Altrock, Philipp M.; Wang, Long; Traulsen, Arne

2010-10-01

339

Open universe from inflation  

SciTech Connect

We present a natural scenario for obtaining an open universe ({Omega}{sub 0}{lt}1) through inflation. In this scenario, there are two epochs of inflationary expansion---an epoch of ``old inflation,`` during which the inflaton field is stuck in a false vacuum, followed by an epoch of ``new inflation,`` during which the inflation field slowly rolls toward its true minimum. During the first epoch, inflation solves the smoothness and horizon problems. Then an open universe (with negative spatial curvature) is created by the nucleation of a single bubble. In effect {Omega} is instantaneously ``reset`` to zero. During the subsequent ``new`` inflation {Omega} rises toward unity. The value of {Omega} today is calculable in terms of the parameters of the potential, and we show that obtaining values significantly different from zero or unity (though within the range 0{lt}{Omega}{lt}1) does not require significant fine-tuning. We compute the spectrum of density perturbations by evolving the Bunch-Davies vacuum modes across the bubble wall into its interior.

Bucher, M. [Physics Department, Princeton University, Princeton, New Jersey 08544 (United States)]|[School of Natural Science, Institute for Advanced Study, Olden Lane, Princeton, New Jersey 08540 (United States); Goldhaber, A.S. [Institute for Theoretical Physics, State University of New York, Stony Brook, New York 11794-3840 (United States); Turok, N. [Physics Department, Princeton University, Princeton, New Jersey 08544 (United States)

1995-09-15

340

Universality in Bacterial Colonies  

NASA Astrophysics Data System (ADS)

The emergent spatial patterns generated by growing bacterial colonies have been the focus of intense study in physics during the last twenty years. Both experimental and theoretical investigations have made possible a clear qualitative picture of the different structures that such colonies can exhibit, depending on the medium on which they are growing. However, there are relatively few quantitative descriptions of these patterns. In this paper, we use a mechanistically detailed simulation framework to measure the scaling exponents associated with the advancing fronts of bacterial colonies on hard agar substrata, aiming to discern the universality class to which the system belongs. We show that the universal behavior exhibited by the colonies can be much richer than previously reported, and we propose the possibility of up to four different sub-phases within the medium-to-high nutrient concentration regime. We hypothesize that the quenched disorder that characterizes one of these sub-phases is an emergent property of the growth and division of bacteria competing for limited space and nutrients.

Bonachela, Juan A.; Nadell, Carey D.; Xavier, João B.; Levin, Simon A.

2011-07-01

341

The University of Wisconsin Collection  

NSDL National Science Digital Library

As this digital archive of documents related to the history of the University of Wisconsin suggests, "...the history of the University of Wisconsin is far too colorful and texture-rich to be told in a single document." Fortunately for those with an interest in the University's long history, this special collection of historical documents developed by the University's Digital Content Group provides access to a number of helpful resources. A number of titles may be searched or browsed, including the landmark 4-volume history of the University of Wisconsin and a number of printed materials related to the Wisconsin Union, the University's primary gathering place. Visitors can also browse through two early versions of the University's yearbook, titled the Trochos.

342

Fourth-generation spinal instrumentation: experience with adolescent idiopathic scoliosis at a tertiary care hospital in Pakistan  

PubMed Central

Objective To evaluate the radiological and functional outcome of surgical treatment of adolescent idiopathic scoliosis using fourth-generation posterior spinal instrumentation at The Aga Khan University, Karachi, Pakistan. Design Case series. Place and duration of study The Aga Khan University Hospital after a minimum of 2 years postoperatively. Patients and methods A total of 20 patients with adolescent idiopathic scoliosis were recruited into the study and evaluated for radiological and functional outcome. The study period was from 2000 to 2005. Radiological outcome was assessed using Cobb angle measurement pre and postoperatively, hence assessing percentage correction. The lower instrumented vertebra was taken as the neutral vertebra and the level was recorded. Functional outcome was determined using the Scoliosis Research Society patient administered questionnaire. All patients were called to the clinic and asked to fill in the form. Those patients who were out of the city were mailed the forms and requested via telephone to complete and return. Results Of the 20 patients operated on, twelve were female and eight were male. The average age at operation was 12.7 years. The mean Cobb angle was 69° preoperatively and 20° postoperatively, representing a percentage correction of 71%. The average duration of follow-up was 3.6 years. There was one major complication involving neurological injury post-op and two minor complications involving wound infection. The average Scoliosis Research Society score (on a scale of 1–5, with 5 being best) for pain was 4.5, self-image was 4.2, functional status was 4.1, mental status was 3.8, and satisfaction was 4.4. There was no relationship between the percentage correction of scoliosis and the functional outcome. Those patients with a high preoperative Cobb angle tended to have a better outcome for functional and mental status postoperatively. There was no relation between the lower instrumented vertebra and functional outcome. Conclusion In the correct indications, fourth-generation posterior instrumentation and fusion is a reliable and satisfactory technique to treat adolescent idiopathic scoliosis.

Fazal, Akil; Lakdawala, Riaz H

2012-01-01

343

Physics in Universe's Youth  

NASA Astrophysics Data System (ADS)

Using a quasar located 12.3 billion light-years away as a beacon, a team of astronomers detected the presence of molecular hydrogen in the farthest system ever, an otherwise invisible galaxy that we observe when the Universe was less than 1.5 billion years old, that is, about 10% of its present age. The astronomers find that there is about one hydrogen molecule for 250 hydrogen atoms. A similar set of observations for two other quasars, together with the most precise laboratory measurements, allows scientists to infer that the ratio of the proton to electron masses may have changed with time. If confirmed, this would have important consequences on our understanding of physics. "Detecting molecular hydrogen and measuring its properties in the most remote parts of the Universe is important to understand the gas environment and determine the rate of star formation in the early Universe", said Cédric Ledoux, lead-author of the paper presenting the results [1]. Although molecular hydrogen is the most abundant molecule in the Universe, it is very difficult to detect directly. For the time being, the only way to detect it directly in the far Universe is to search for its telltale signatures in the spectra of quasars or gamma-ray burst afterglows. This requires high spectral resolution and large telescopes to reach the necessary precision. A team of astronomers, comprised of Cédric Ledoux (ESO), Patrick Petitjean (IAP, Paris, France) and Raghunathan Srianand (IUCAA, Pune, India), is conducting a survey for molecular hydrogen at high redshift using the Ultraviolet and Visible Echelle Spectrograph (UVES) at ESO's Very Large Telescope. Out of the 75 systems observed up to now, 14 have firm detection of molecular hydrogen. Among these, one is found having a redshift of 4.224. While using the 12.3 billion light-years distant quasar PSS J 1443+2724 as a beacon, the astronomers detected several features belonging to an unseen galaxy having a redshift of 4.224. In particular, many lines from molecular hydrogen were found, breaking the record for the detection of this element in the farthest object in the Universe. This also implies that the gas in this galaxy must be rather cold, about -90 to -180 degrees Celsius. ESO PR Photo 1r/06 Molecular Hydrogen in Distant Galaxy In addition, several lines from 'metals' are also seen, allowing the researchers to deduce the amount of various chemical elements. "From the abundance of Nitrogen observed, we argue that it had to be produced in the late stage of the life of 4 to 8 solar mass stars," said Patrick Petitjean. "Thus, star-formation activity must have formed at least 200 to 500 million years before we are observing the galaxy, that is, when the Universe was about one billion years old" [2]. If the galaxy went through a phase of intense star-formation activity, it is now, at the time of the observations, in a rather quiescent state. "These observations demonstrate the possibility to perform these studies at the highest redshift with ESO's VLT", said Raghunathan Srianand. "In particular, the possibility to observe the interstellar medium of distant galaxies revealed by using gamma-ray bursts as beacons will boost this field in the near future." [3] A similar set of accurate measurements of molecular hydrogen lines was made by the astronomers [4] with UVES on the VLT towards two others quasars, Q 0405-443 and Q 0347-383. This set of data allowed the scientists to compare the ratio of the mass of a proton to that of an electron in molecular hydrogen as it is now and how it was about 12 billion years ago [5]. To this aim, they performed extremely accurate measurements of spectral lines of hydrogen molecules in the laboratory and compared the results with the same lines observed in the spectra of these quasars. These measurements show that the mass ratio of the proton and the electron may have changed, becoming 0.002% smaller in the past twelve billion years. Albeit such a change may look tiny, it would have important consequences on our understa

2006-05-01

344

Route 66 University  

NSDL National Science Digital Library

Millions of people learned about Route 66 and how it wound from Chicago to L.A. courtesy of Nat Cole, others from its namesake 1960s television series, and now interested parties can learn online about that fabled stretch of road on this Route 66 University website. Neophytes may want to begin by perusing the section dedicated to maps of the route, allowing them to visualize how it winds through Illinois, Missouri, Kansas, and other states. The site's main page also contains sections that provide electronic postcards, an events calendar, and the "Campus Rag," which provides timely information about the history of this road. The essays and articles here are a true delight, as they range from reminiscences of Route 66 from novelist Michael Lund to a 1996 interview with Roy Rogers. Another section of the site that is worth taking a look at is called "I RememberÂ," and features first-hand memories of life along Route 66.

345

Plasma and the universe  

SciTech Connect

Hannes Alfven has enjoyed a long and spectacular career in which he has time and again pioneered the path that other workers were able fruitfully to exploit. One thinks of the Alven waves, the concept of gyrocenter drift and the perturbation theory based on it, and the critical velocity phenomenon in the interaction of a plasma with a neutral gas. All of these discoveries have been of fundamental importance. By no means content to rest on his laurels, Alfven has, during the last decade, contributed to science in a major sense, especially in the field of cosmogeny. For example, he has used the latest data from the Voyager spacecraft to test his detailed predictions of the structure of the Saturnian rings. Alfven's current preoccupation is with the Plasma Universe and, as may be expected, some of his concepts are receiving observational support, while others are still controversial.

Falthammar, C.G. (Royal Inst. of Technology, Stockholm (SE))

1988-01-01

346

Cornell University: Biozon  

NSDL National Science Digital Library

Developed by Professor Golan Yona and his colleagues at Cornell University, the Biozon database aids in the analysis of biological entities. The "database relies on an extensive database schema that integrates information at the macro-molecular level as well as at the cellular level, from a variety of resources to create a unified biological knowledge resource with emphasis on protein and DNA characterization and classification." Biozon builds on data from a number of preexisting databases including PDB, BIND, KEGG, and SwissProt. New searches can be conducted for the following object types: Protein Families, Nucleic Acids, Gene Expression, Structures, Proteins, and more. Biozon offers file and software downloads, as well as an opportunity to save queries with a personal account.

347

Self-Accelerated Universe  

NASA Astrophysics Data System (ADS)

It is widely believed that the large redshifts for distant supernovae are due to the vacuum energy dominance, which is responsible for the anti-gravitation effect. A tacit assumption is that particles move along geodesics for the background metric. This is in the same spirit as the consensus regarding the uniform Galilean motion of a free electron. However, apart from the Galilean solution, there is a self-accelerated solution to the Lorentz-Dirac equation governing the behavior of a radiating electron. Likewise, a runaway solution to the entire system of equations, both gravitation and matter equations of motion including, may exist, which provides an alternative explanation for the accelerated expansion of the Universe.

Kosyakov, B. P.

348

European Universe Awareness  

NASA Astrophysics Data System (ADS)

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.

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

2011-10-01

349

Supply Side University  

NSDL National Science Digital Library

Those who are interested in the intricacies of supply-side economics will find Jude Wanniski's Supply Side University a useful site for understanding the concepts of this theory. Wanniski, a well-known supply-side advocate, maintains SSU as a free "weekend school in supply-side economics," where the subject is taught in a political context. Included at present are four essays and 23 lessons ranging from It's Time to Cut Taxes, to The World Trade Deficit, to Say's Law of Markets, to Two Kinds of Deflation (or Inflation). Much of the content is derived from Wanniski's articles in The Wall Street Journal and from his well-known book The Way the World Works. Lessons are driven by user questions, and Wanniski encourages "economists trained in Keynesian or monetarist theory [to] sneak in without embarrassment."

Wanniski, Jude, 1936-.

1997-01-01

350

Universal Landau pole.  

PubMed

Our understanding of quantum gravity suggests that at the Planck scale the usual geometry loses its meaning. If so, the quest for grand unification in a large non-Abelian group naturally endowed with the property of asymptotic freedom may also lose its motivation. Instead, we propose a unification of all fundamental interactions at the Planck scale in the form of a universal Landau pole, at which all gauge couplings diverge. The Higgs quartic coupling also diverges while the Yukawa couplings vanish. The unification is achieved with the addition of fermions with vector gauge couplings coming in multiplets and with hypercharges identical to those of the standard model. The presence of these particles also prevents the Higgs quartic coupling from becoming negative, thus avoiding the instability (or metastability) of the standard model vacuum. PMID:23862991

Andrianov, A A; Espriu, D; Kurkov, M A; Lizzi, F

2013-07-01

351

Revealing the Universe  

NASA Astrophysics Data System (ADS)

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).

Cornell, James; Lightman, Alan

1983-05-01

352

Drexel University Costume Collection  

NSDL National Science Digital Library

The elaborate costume collection at Drexel University is housed in the Antoinette Westphal College of Media Arts & Design. This website brings together archival data and detailed graphics culled from the collection. The hope is that fashion and textile design students, fashion professionals, historic costume scholars, and followers of fashion trends will be able to use these materials to inform their own work. Visitors can use the Search section to look over 3D panoramas and detailed bibliographic records by designer, category, decade, or fabric. It is definitely worth looking at the velvet and wool items under the fabric heading. Design detectives can use the Mystery area to look over items that are a mystery to the researchers here - if they have any clues, they are encouraged to pass them along. Finally, the Digital Gallery area has some fine views of past shows by Geoffrey Beene that appeared on campus.

2012-07-06

353

Brane Universe: Global Geometry  

SciTech Connect

The global geometries of bulk vacuum space-times in the brane-universe models are investigated and classified in terms of geometrical invariants. The corresponding Carter-Penrose diagrams and embedding diagrams are constructed. It is shown that for a given energy-momentum induced on the brane there can be different types of global geometries depending on the signs of a bulk cosmological term and surface energy density of the brane (the sign of the latter does not influence the internal cosmological evolution). It is shown that in the Randall-Sundrum scenario it is possible to have an asymmetric hierarchy splitting even with a Z{sub 2}-symmetric matching of 'our' brane to the bulk.

Berezin, Victor [Institute for Nuclear Research, Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, 117312, Moscow (Russian Federation)

2010-06-23

354

Cornell University Cooperative Extension  

NSDL National Science Digital Library

The Cornell Cooperative Extension program brings Cornell University's land-grant programs to citizens across the Empire State. This website is part of the Extension's rather impressive public outreach efforts. Clicking on the Program Areas tab allows visitors to learn about various thematic work on subjects like Agriculture and Food Systems and Community and Economic Vitality. Each of these areas includes resources culled from various state agencies, such as databases and fact sheets. In the About area, visitors can learn about the organization's long-term strategic plan and also about local offices across the state. Finally, the News area brings together press releases, videos and blog posts that deal with new innovations in agriculture, community outreach work, and so on.

2013-01-01

355

Universal Design for Learning  

NSDL National Science Digital Library

This Wiki page provides a link to the recording of a webinar by Mindy Johnson. Join Mindy as she stresses the imporatnce of meeting the needs of diverse learners while maintaining high achievement standards for all can be challenging â even for the most seasoned educator. Universal Design for Learning (UDL), a framework based on brain research, provides rich supports and pedagogy to address these challenges, enabling all individuals to gain knowledge, skills, and enthusiasm for learning. Shifting our attention toward the goals, methods, materials, and assessments used in instruction focuses on the disabilities in our curriculum; not in our students. Join us for a discussion about UDL, and leave with some strategies and tools you can use in your classroom tomorrow! Other links to the resources discussed in this webinar are also provided.

2009-10-21

356

Some toy sheet universes  

NASA Astrophysics Data System (ADS)

Our model is based on the model studied by Langer [1] and in more detail by Langer and Žofka [2]. In these papers we studied a toy closed universe which is flat except of a thin spherical shell. The model was constructed in the framework of the Israel formalism [3]. In this approach the history of a thin shell of matter is described by the time-like hypersurface ? which divides the spacetime into two parts V- and V+. The hypersuface ? is a common boundary of V- and V+ consequently its intrinsic metric induced by the geometries in both regions must be the same. However, the extrinsic curvatures of ? in V- and V+ are in general different. The jump in projections of the extrinsic curvature tensors on ? determines the surface energy-momentum tensor of matter on ?.

Hamerský, Jaroslav; Langer, Ji?í

2012-07-01

357

Kansas State University Herbarium  

NSDL National Science Digital Library

Located in Manhattan, Kansas, Kansas State University is well-known for their various agricultural outreach programs, and their Herbarium is a fascinating place for botanists and the general public. For those who can't make a trip out to Kansas, they also have a nice website. Visitors to the site can start by looking over the "Information" section, which includes information on the history of the Herbarium, along with offering up a nice answer to the question, "What is an herbarium?" Moving on, visitors can also query their online database of plant species from Kansas and learn about their forthcoming Central Great Plains Network. The site is rounded out with a list of contact information and other noteworthy links.

2006-01-01

358

Rice University: Colvin Group  

NSDL National Science Digital Library

The Colvin Group at Rice University deals with the control and understanding of material properties on nanometer length scales. Some members of the group work to "develop new chemical approaches to forming uniform nanocrystals, and highly ordered porous solids" while "others focus on using these materials as tools for answering fundamental questions about nature, such as the characteristic length scales in glasses and liquids." Researchers can learn about the numerous projects undertaken by the group including understanding the superprism phenomena, the preparation of perfect nanocrystals of metal oxides, and the synthesis of quartz particles in the sub-micron to nanoscale size regime. Students and educators can find helpful tutorials describing the nanoscience field of study. The website also provides many of the group's published papers.

359

Cornell University: Project Euclid  

NSDL National Science Digital Library

Project Euclid, available through the Cornell University Library, is "a user-centered initiative to create an environment for the effective and affordable distribution of serial literature in mathematics and statistics." The project is a collaborative partnership with scholarly publishers, professional societies, and academic libraries. The goal is to provide full-text searching, reference linking, interoperability through the Open Archives Initiative, and long-term retention of data. Visitors can "Tour Euclid" to read more about the functionality of the website, including the different options for access. Some publishers require a paid subscription, while others may offer a pay-per-view option or free downloads. Multiple linking options make this a dynamic database. The website has a simple search function and the option to browse the database by journal title, publisher or discipline. A News section provides updates on the project and newly added journals.

360

Cornell University: Project Euclid  

NSDL National Science Digital Library

Project Euclid, available through the Cornell University Library, is "a user-centered initiative to create an environment for the effective and affordable distribution of serial literature in mathematics and statistics." The project is a collaborative partnership with scholarly publishers, professional societies, and academic libraries. The goal is to provide full-text searching, reference linking, interoperability through the Open Archives Initiative, and long-term retention of data. Visitors can "Tour Euclid" to read more about the functionality of the website, including the different options for access. Some publishers require a paid subscription, while others may offer a pay-per-view option or free downloads. Multiple linking options make this a dynamic database. The website has a simple search function and the option to browse the database by journal title, publisher or discipline. A News section provides updates on the project and newly added journals.

2005-12-22

361

Quinnipiac University Polling Institute  

NSDL National Science Digital Library

Quinnipiac University's Polling Institute is perhaps one of the best known polling centers in the United States, and their work is frequently cited by major media outlets. Staff members at the Institute are also called upon to offer commentary on the voting habits and preferences of a broad swath of the American public. Visitors to their site can start their journey by clicking on the "Releases by State" area on the left-hand side of the homepage. Here they will find the results of recent polls conducted at the state and national level. From there, visitors will want to visit the "Polling Regional Definitions" where they can learn about how each state is divided up for polling purposes. Also, the site allows users to search all of their press releases by area (such as individual states or "swing states") and timeframe.

362

Fred Hoyle's Universe  

NASA Astrophysics Data System (ADS)

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.

Gregory, Jane

2005-08-01

363

Acceleration of Black Hole Universe  

NASA Astrophysics Data System (ADS)

An alternative cosmological model called black hole universe has been recently proposed by the author. According to this model, the universe originated from a hot star-like black hole, and gradually grew up through a supermassive black hole to the present state by accreting ambient materials and merging with other black holes. The entire space is structured with an infinite number of layers hierarchically. The innermost three layers are the universe that we live, the outside space called mother universe, and the inside star-like and supermassive black holes called child universes. The outermost layer has an infinite radius and limits to zero for both the mass density and absolute temperature. All layers or universes are governed by the same physics, the Einstein general theory of relativity with the Robertson-Walker metric of space-time, and tend to expand outward physically. The evolution of the space structure is iterative. When one universe expands out, a new similar universe grows up from its inside. In this study. we will analyze the acceleration of black hole universe that accretes its ambient matter in an increasing rate. We will also compare the result obtained from the black hole universe model with the measurement of type Ia supernova and the result from the big bang cosmology.

Zhang, Tianxi

2012-05-01

364

Quantization of Bianchi type universe  

NASA Astrophysics Data System (ADS)

In this paper we have used the square root formulation of the Wheeler-De Witt equation to quantize a minisuperspace consisting of the Bianchi Type-I universe and a source of radiation field. We have derived a wavefunction of the universe with a conserved current and a positive-definite probability density. We have also explored the quantization of Bianchi Type-III universe using a procedure similar to that used in the ordinary quantum theory in curved spacetime. We have given the wavefunction satisfied by the Wheeler-De Witt equation. Regarding the wavefunction as an operator in a minisuperspace we have not only avoided the difficulty of probabilistic interpretation in quantum cosmology, but also obtained the conclusion of multiple production of universe. We have estimated the mean numbers of various types of universes generated from nothing and shown the distribution of the generated universes to be Planckian.

Shen, You-Gen; Cheng, Zong-Yi

1997-02-01

365

Gravitational baryogenesis in anisotropic universe  

NASA Astrophysics Data System (ADS)

The interaction between Ricci scalar curvature and the baryon number current, dynamically breaks CPT in an expanding universe and leads to baryon asymmetry. Using this kind of interaction and study the gravitational baryogenesis in the Bianchi type I universe. We find out the effect of anisotropy of the universe on the baryon asymmetry for the case which the equation of state parameter, ?, varies with time.

Saaidi, Kh.; Hossienkhani, H.

2011-05-01

366

Near-Universal Basic Income  

Microsoft Academic Search

Under what I call â€Near-Universal Basic Income,†or NUBI, everyone receives a high level of basic income, except for the rich. NUBI is therefore only near-universal and it requires means-testing. It is an economic hybrid: a cross between Universal Basic Income (UBI) and conservative social relief. My thesis is that if standard considerations that are often advanced to support UBI

Nir Eyal

2010-01-01

367

College and University Home Pages  

NSDL National Science Digital Library

College and University Home Pages offers pointers to the home pages of over 2300 colleges and universities in 77 countries. Either alphabetical and geographic listings are available for browsing. It also includes a small list of what users believe to be good examples of school homepages, and a link to a final class project done at Columbia University's Teachers College which surveyed over 450 school home pages. http://www.mit.edu:8001/people/cdemello/univ.html

368

How Old is the Universe?  

NSDL National Science Digital Library

Astronomers estimate the age of the universe in two ways: by looking for the oldest stars, and by measuring the rate of expansion of the universe and extrapolating back to the Big Bang. This site explains how these measurements are made and points out the discrepancy in ages derived from the two methods. It features images, background information, and links to other resources regarding the age of the universe.

369

Hayden Planetarium: The Digital Universe  

NSDL National Science Digital Library

The Hayden Planetarium's Digital Universe has been engaged since 1988 in the three-dimensional mapping of data groups ranging in scale from the solar neighborhood to the grand structure of the universe. This online site includes two downloadable atlases (Milky Way Atlas and Extragalactic Atlas), Partiview viewing software, educator activities, a data archive, an article about the Digital Universe that appeared in Natural History and an e-mail discussion forum.

370

Comparison of orange oil and chloroform as gutta- percha solvents in endodontic retreatment.  

PubMed

Objective: To compare the efficacy of gutta-percha removal achieved with simple mechanical technique using two different solvents. Materials and methods: It was an in vitro experimental study conducted at the Aga Khan University Hospital, Karachi, Pakistan on 27 extracted human molars divided into two groups by alternate sampling technique. The teeth were prepared by manual filing and obturated with gutta-percha and calcium hydroxide sealer. Two drops of the assigned solvent were placed on the orifice of the obturated canal and Gates Glidden drills #1, 2 and 3 were used for removal of coronal gutta-percha. Manual filing was done for removal of remaining gutta-percha and the solvent was used in drops until needed. Postoperative periapical radiographs were taken to visualize the remaining gutta-percha left in the canals. Descriptive statistics (mean and SD) of the variables such as tooth type, obturation length and canal curvatures were determined. Chi-square and independent sample t-tests were applied and level of significance was set at 0.05. Results: There was 5.19 (3.8) mm of remaining gutta-percha in the orange oil group and 5.37 (4.2) mm in the chloroform group (p = 0.90). Conclusion: There is no statistically significant difference between the orange oil and chloroform when used as solvent for removing gutta-percha. Keywords: Gutta-percha, Retreatment, Endodontic solvents. How to cite this article: Rehman K, Khan FR, Aman N. Comparison of Orange Oil and Chloroform as Gutta-Percha Solvents in Endodontic Retreatment. J Contemp Dent Pract 2013;14(3):478-482. Source of support: Nil Conflict of interest: None declared. PMID:24171993

Rehman, Kiran; Khan, Farhan Raza; Aman, Nadia

2013-05-01

371

Creating University Hospitals: Rationales and Realities.  

ERIC Educational Resources Information Center

Comparison of the origins and histories of three early university hospitals--University of Michigan, University of Pennsylvania, and Johns Hopkins University (Maryland)--illustrates how each created a different mission. The meaning of "university hospital" has always been ambiguous, which can provide a useful flexibility, but university hospitals…

Martin, Steven C.; Howell, Joel D.

1995-01-01

372

An Output Comparison of Open University and Conventional University Students.  

ERIC Educational Resources Information Center

A study comparing Open University (OU) and conventional university (CU) student performance in economics shows OU students even with CU students in microeconomics and higher in macroeconomics. The research was controlled for both test-wiseness, previous experience, and representativeness of OU students. (MSE)

Lumsden, Keith; Scott, Alex

1982-01-01

373

The Endless Universe: Introduction to the Cyclic Universe  

NSDL National Science Digital Library

The reprinted resource proposes an alternative model to the "Big Bang" theory of the Universe, suggesting that: space and time may have always existed in an endless cycle of expansion and rebirth, the expansion of the universe is accelerating, as astronomers have recently observed, and after trillions of years, expansion stalls, new matter and radiation is created, and the cycle restarts.

Paul Steinhardt (Princeton University;)

2002-05-01

374

Western Governors University: Creating the First Virtual University  

ERIC Educational Resources Information Center

|Distance education in its many forms had been around for decades, but the Western Governors University (WGU) was arguably the first "virtual university" (VU) in the United States, or at least the first VU that gained widespread attention from the press and public. After the governors in the Western Governors Association announced they would…

Meyer, Katrina A.

2009-01-01

375

Personalized virtual university: Applying personalization in virtual university  

Microsoft Academic Search

A virtual university is an organization, which provides education and learning through web portal over internet and utilizes multimedia technology to provide online classes, course units, and interactive instructor. It also utilizes virtual reality application for support laboratory and tentative activity and at last assessment and certificate issuance. Students, via the internet, can register in virtual university and choose their

Sara Salehi Kukeneh; Asadollah Shahbahrami; Mehregan Mahdavi

2011-01-01

376

Running Universities as Enterprises: University Governance Changes in Hong Kong  

Microsoft Academic Search

University entrepreneurialism has been adopted as a way of promoting quality education in Hong Kong. In light of the role of the state in Hong Kong's changing higher education governance, this article critically reviews the rationale for privatising and corporatising the university sector. With a focus on the current trends of privatisation and corporatisation, the article discusses and examines how

David Chan; William Lo

2007-01-01

377

Drexel University’s freshman engineering physics course  

Microsoft Academic Search

This paper describes the results of a major experiment in undergraduate engineering curriculum reform and, in particular, focuses upon the physics course content that has evolved after this 5-year experiment. In 1988, Drexel University’s College of Engineering was awarded grants by the National Science Foundation and the General Electric Foundation to undertake a major educational experiment involving its undergraduate engineering

D. H. Thomas; T. S. Venkataraman

1997-01-01

378

Universal energy adaptor increaser  

SciTech Connect

This patent describes a universal energy adapter increaser for providing a primary and only air supply to a heater unit, having in combination, an attachment along a flue duct located between a heater unit and a chimney. The attachment consists of: a duct engaging support collar section adapted to be secured to a portion of the flue duct, a jet assembly supported by the collar and having a jet tube, one end of the tube adapted to extend through alligned air-tight openings in both the collar and flue side walls, a portion of the jet tube being bent at a right angle and housed within the flue, the tube extending axially parallel with the flue duct a given length so that it extends into the heater combustion chamber. The tube one end portion provides a jet blast at its opening, and the other extending end portion of the jet tube having a fitting at its terminal end adapted for connection to the only air source to be used by the heater.

Gatling, G.G.

1988-09-27

379

Universal mechatronics coordinator  

NASA Astrophysics Data System (ADS)

Mechatronic systems incorporate multiple actuators and sensor which must be properly coordinated to achieve the desired system functionality. Many mechatronic systems are designed as one-of-a-kind custom projects without consideration for facilitating future system or alterations and extensions to the current syste. Thus, subsequent changes to the system are slow, different, and costly. It has become apparent that manufacturing processes, and thus the mechatronics which embody them, need to be agile in order to more quickly and easily respond to changing customer demands or market pressures. To achieve agility, both the hardware and software of the system need to be designed such that the creation of new system and the alteration and extension of current system is fast and easy. This paper describes the design of a Universal Mechatronics Coordinator (UMC) which facilitates agile setup and changeover of coordination software for mechatronic systems. The UMC is capable of sequencing continuous and discrete actions that are programmed as stimulus-response pairs, as state machines, or a combination of the two. It facilitates the modular, reusable programing of continuous actions such as servo control algorithms, data collection code, and safety checking routines; and discrete actions such as reporting achieved states, and turning on/off binary devices. The UMC has been applied to the control of a z- theta assembly robot for the Minifactory project and is applicable to a spectrum of widely differing mechatronic systems.

Muir, Patrick F.

1999-11-01

380

Vanderbilt University: Bioimages  

NSDL National Science Digital Library

This extensive website of southeastern U.S. plant images was developed by Dr. Steve Baskauf of the Department of Biological Sciences at Vanderbilt University. The site is part of a larger Bioimages website designed to "provide educational information to the public on biologically related topics, as well as a source of biological images for personal and non-commercial use." Site visitors can browse for excellent images of many trees and woody plants by common name, scientific name, or family. Notably, these species pages include close-ups of different tree and plant parts (e.g. flower, bark, leaf, fruit). The site also offers helpful comparison sections for oaks, hickories, maples, and hickory nuts. Other site offerings include a list of Common and Endemic Herbaceous Plants of Cedar Glades by Family, a list of non-seed plants (hyperlinked to images), and a section on Identifying Invasive Plants. This site is also reviewed in the April 1, 2005_NSDL Life Sciences Report_.

2007-08-24

381

Hydrogen fuel - Universal energy  

NASA Astrophysics Data System (ADS)

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.

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

382

Viscous dark fluid universe  

SciTech Connect

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.

Hipolito-Ricaldi, W. S. [Universidade Federal do Espirito Santo, Departamento de Ciencias Matematicas e Naturais, CEUNES, Rodovia BR 101 Norte, km. 60, CEP 29932-540, Sao Mateus, Espirito Santo (Brazil); Velten, H. E. S.; Zimdahl, W. [Universidade Federal do Espirito Santo, Departamento de Fisica, Av. Fernando Ferrari, 514, Campus de Goiabeiras, CEP 29075-910, Vitoria, Espirito Santo (Brazil)

2010-09-15

383

University--Science Fair Partnership.  

ERIC Educational Resources Information Center

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…

Tallman, Erika; Taylor, Karen

1997-01-01

384

The dark energy dominated Universe  

Microsoft Academic Search

In this paper we investigate the epochs in which the Universe started accelerating and when it began to become dark energy dominated (i.e., the dynamics of the expansion of the Universe dominated by the dark energy). We provide analytic expressions to calculate the redshifts of these epochs as a function of density parameters. Moreover, we review and discuss cosmological models

José Carlos N. de Araujo

2005-01-01

385

Islamic Universities Spread through Africa  

ERIC Educational Resources Information Center

|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…

Lindow, Megan

2007-01-01

386

Universals of Second Language Acquisition.  

ERIC Educational Resources Information Center

Works on second language acquisition theories, affective variables and communicative competence, and interlanguage were compiled as a result of a symposium on universals of second language acquisition at the University of Wisconsin, Milwaukee. The papers include: "On the Variability of Interlangauge Systems" (Elaine Tarone); "Memory, Learning, and…

Eckman, Fred R., Ed.; And Others

387

University ranking as social exclusion  

Microsoft Academic Search

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 instrument of political and economic policy. We consider

Sarah S. Amsler; Chris Bolsmann

2012-01-01

388

Internationalization and the Cosmopolitical University  

ERIC Educational Resources Information Center

|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…

Britez, Rodrigo; Peters, Michael A.

2010-01-01

389

Three Chinese Women's Vocational Universities.  

ERIC Educational Resources Information Center

|Describes three women's vocational schools in China. Discusses campuses, specialities, curriculum, and facilities available to students at Fujian Hua'nan Women's Vocational College, Xi'an Peihua Women's University, and Hunan Women's Vocational University. Notes an emphasis on practical experience at the three schools. (DK)|

Dai, Shujun

1991-01-01

390

China's Vocational Universities. ERIC Digest.  

ERIC Educational Resources Information Center

|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.…

Ding, Anning

391

Visualising the "Internationalisation" of Universities  

ERIC Educational Resources Information Center

|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…

Elkin, Graham; Devjee, Faiyaz; Farnsworth, John

2005-01-01

392

How Big is our Universe?  

NSDL National Science Digital Library

This interactive resource illustrates the immense scale of the universe and demonstrates some techniques astronomers use to measure distances. Principles of parallax, luminosities and "standard candles" are discussed. The html interactive is an exploration through space and time of the universe. It is also available in printable pdf form. The lesson meets Colorado Standard 4 for Earth and Space Science.

393

University--Science Fair Partnership.  

ERIC Educational Resources Information Center

|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…

Tallman, Erika; Taylor, Karen

1997-01-01

394

Student Leadership at the University  

ERIC Educational Resources Information Center

|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…

Hilliard, Ann T.

2010-01-01

395

University Ranking as Social Exclusion  

ERIC Educational Resources Information Center

|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…

Amsler, Sarah S.; Bolsmann, Chris

2012-01-01

396

Mansfield University Student Teaching Manual.  

ERIC Educational Resources Information Center

|This publication is a practical manual to guide the joint efforts of the student teaching triad--student teacher, cooperating teacher, and university supervisor. The manual is divided into three parts. Chapters 1, 2, and 3 give an overview of Mansfield University's teacher education and student teaching programs, including a description of…

Woollen, Sandra L., Ed.

397

University Research Program in Robotics - \\  

Microsoft Academic Search

The University Research Program in Robotics (URPR) is an integrated group of universities performing fundamental research that addresses broad-based robotics and automation needs of the NNSA Directed Stockpile Work (DSW) and Campaigns. The URPR mission is to provide improved capabilities in robotics science and engineering to meet the future needs of all weapon systems and other associated NNSA\\/DOE activities.

James S. Tulenko; Carl D. Crane

2007-01-01

398

Dark Energy Rules the Universe  

ScienceCinema

The revolutionary discovery that the expansion of the universe is speeding up, not slowing down from gravity, means that 75 percent of our universe consists of mysterious dark energy. Berkeley Lab theoretical physicist Eric Linder delves into the mystery of dark energy as part of the Science in the Theatre lecture series on Nov. 24, 2008.

399

The Future of the Universe.  

ERIC Educational Resources Information Center

|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)|

Page, Don N.; McKee, M. Randall

1983-01-01

400

Reading Neoliberalism at the University  

ERIC Educational Resources Information Center

|Ongoing transformations of the university--from changing working conditions to issues of affordability and access, increasing "accountability" measures and commodification of academic production--are increasingly referred to as university corporatisation and are unfolding within and concomitant to neoliberal globalisation. In this paper we…

Shear, Boone W.; Zontine, Angelina I.

2010-01-01

401

Computer Science in Japanese Universities  

Microsoft Academic Search

This paper presents some impressions of computer science in Japanese universities based on the authors'sabbatical visits. The focus is primarily on such structural aspects of the discipline as departmental organization,faculty and student populations, funding, research activity, and computing facilities. Perhaps the keyobservation is that Japanese cultural practices influence the way in which computer science is approachedin Japanese universities to a

David Notkin; Richard D. Schlichting

1993-01-01

402

Research and the Universities' Image  

ERIC Educational Resources Information Center

|Traditionally, and from a Humboltian perspective, research was conceived as an important part of the tripartite mission of universities, with teaching and services to the community being the other two. The traditional idea of universities as cultural and social institutions is increasingly being replaced by another: the entrepreneurial,…

Santiago, Rui; Carvalho, Teresa; Relva, Rosario

2008-01-01

403

Public Policy Affecting Universal Design  

Microsoft Academic Search

The federal government has passed numerous laws that have focused on everything from civil rights legislation to accessibility mandates. This paper looks at the cumulative effects of federal legislation and non-legislative activities on breaking down the wall of inequality for persons with disabilities and promoting the concept of universal design and universal access.

William Peterson

1998-01-01

404

Learning Productivity at Research Universities.  

ERIC Educational Resources Information Center

|Compared levels of engagement in learning activities and gains of students at research universities (RUs) and other types of colleges in the 1980s and 1990s. Though students at other universities generally outperformed RU students, the gap closed somewhat between the mid-80s and mid-90s due in part to declines in many learning productivity…

Kuh, George D.; Hu, Shouping

2001-01-01

405

Reading Neoliberalism at the University  

ERIC Educational Resources Information Center

Ongoing transformations of the university--from changing working conditions to issues of affordability and access, increasing "accountability" measures and commodification of academic production--are increasingly referred to as university corporatisation and are unfolding within and concomitant to neoliberal globalisation. In this paper we outline…

Shear, Boone W.; Zontine, Angelina I.

2010-01-01

406

Working Knowledge: Australian Universities and \\  

Microsoft Academic Search

Universities are at a pivotal point in their history and are undergoing dramatic changes. One of the more significant of these changes is the move towards instrumental programmes of learning, as manifest for instance in workplace and work-based learning. This paper argues that this trend threatens the existence of the liberal university, where knowledge is pursued predominantly for its own

Colin Symes; David Boud; John McIntyre; Nicky Solomon; Mark Tennant

2000-01-01

407

Sustainability in Brazilian Federal Universities  

ERIC Educational Resources Information Center

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…

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

2011-01-01

408

Universities: Engaging with Local Communities  

ERIC Educational Resources Information Center

|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;…

Universities UK, 2010

2010-01-01

409

Baryogenesis in the Early Universe  

SciTech Connect

The Universe we observe is baryon-antibaryon asymmetric. There is a negligible amount of primordial antimatter. The presented theoretical scenarios provide a possible mechanism of baryogenesis which could have taken place in the Early Universe, and which may explain the observed asymmetry.

Karczewska, Danuta M. [University of Silesia, ul. Jagiellonska 28, 40-032 Katowice (Poland)

2010-12-22

410

Water Recycling in Schools & Universities  

ERIC Educational Resources Information Center

|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,…

Meeten, Nick

2013-01-01

411

What Are Open Universities for?  

ERIC Educational Resources Information Center

This article proposes a framework within which the question as to the purposes of open universities should be examined. It argues that the question has become submerged over time through the establishment of so many open universities that have become natural elements in a higher education landscape rather than remaining radical and innovative…

Tait, Alan

2008-01-01

412

A universal finite memory source  

Microsoft Academic Search

An irreducible parameterization for a finite memory source is constructed in the form of a tree machine. A universal information source for the set of finite memory sources is constructed by a predictive modification of an earlier studied algorithm-Context. It is shown that this universal source incorporates any minimal data-generating tree machine in an asymptotically optimal manner in the following

Marcelo J. Weinberger; Jorma J. Rissanen; Meir Feder

1995-01-01

413

Environmental Management at Swedish Universities  

ERIC Educational Resources Information Center

|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…

Arvidsson, Karin

2004-01-01

414

Quantum entanglement of baby universes  

SciTech Connect

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.

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

2006-12-07

415

The isotropy of the universe  

Microsoft Academic Search

It is shown that the anisotropy of a spatially homogeneous anisotropic minisuperspace model of the universe is likely to be very small at the present time if the universe is in the quantum state defined by a path integral over compact four-geometries.

Stephen W. Hawking; Julian C. Luttrell

1984-01-01

416

Visualising the "Internationalisation" of Universities  

ERIC Educational Resources Information Center

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…

Elkin, Graham; Devjee, Faiyaz; Farnsworth, John

2005-01-01

417

University Students: Attainment and Sport  

ERIC Educational Resources Information Center

|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.…

Hendry, L. B.; Douglass, L.

1975-01-01

418

Research and the Universities' Image  

ERIC Educational Resources Information Center

Traditionally, and from a Humboltian perspective, research was conceived as an important part of the tripartite mission of universities, with teaching and services to the community being the other two. The traditional idea of universities as cultural and social institutions is increasingly being replaced by another: the entrepreneurial, capitalist…

Santiago, Rui; Carvalho, Teresa; Relva, Rosario

2008-01-01

419

Why the universe is expanding  

Microsoft Academic Search

The features of present-day cosmology are reviewed. The similarities and differences between a chemical explosion and the big bang are examined. Attention is given to the initial conditions for the big bang and to the concept of gravitational repulsion. Some considerations relating to the distant future of the universe are presented, with reference to the concept of a closed universe,

Ia. B. Zeldovich

1984-01-01

420

Has the Universe always expanded?  

Microsoft Academic Search

We consider a cosmological setting for which the currently expanding era is preceded by a contracting phase; that is, we assume the Universe experienced at least one bounce. We show that scalar hydrodynamic perturbations lead to a singular behavior of the Bardeen potential and\\/or its derivatives (i.e., the curvature) for whatever universe model for which the last bounce epoch can

Patrick Peter; Nelson Pinto-Neto

2002-01-01

421

The age of universe  

NASA Astrophysics Data System (ADS)

The presence of short-lived isotope Curium-247 in the early Solar System complicates the job of dating the earliest events in the solar nebula. Primitive components in meteorites contain a detailed record of the conditions and processes in the solarnebula, the cloud of dust and gas surrounding the infant Sun. Determining accurately when the first materialsformed re-quires the lead-lead (Pb-Pb) dating method, a method based on the decay of uranium (U) isotopes toPb isotopes. The initial ratio of U-238 to U-235 is critical to determining theages correctly, and many studies have concluded that the ratio is constant for any given age. How-ever, my colleagues at Arizona State University(Frankfurt, Germany), and the Senckenberg Forschungsinstitut und Naturmuseum (also in Frankfurt) and I have found that some calcium-aluminum-rich inclusions (CAIs) in chondritic meteorites deviate from the conventional value for the U-238/U-235 ratio. This could lead to inaccuracies of up to 5 million years in the age of these objects, if no correction is made.Variations in the concentrations of thorium and neodymium with the U-238/U-235 ratio suggest that the ratio may have been lowered by the decay of curium-247, which decays to U-235 with a half-life of 15.6 million years. Curium-247 is created in certain types of energetic supernovae, so its presence suggests that a supernova added material to the pre-solar interstellar cloud between 110 and 140 million years before theSolar System began to form.

Ali, Zeeshan

422

The Universe: An Introduction  

NSDL National Science Digital Library

Astronomy is a science that asks fundamental questions about the very fundament of things, the universe. How big and how far away are the planets and stars? How did they form and when? How do they move and why? Finding answers to those questions has been the highest adventure of the human mind, and yet the questions, in essence, are those of any child looking into the sky. The lessons in this issue of Smithsonian in Your Classroom address the questions, therefore, by first asking the students.In Lesson 1, the class works together to arrange pictures from space according to the studentsâ best ideas of size, distance, and age. This active introduction to the cosmos can be a pre-assessment for a unit on space science. Lesson 2 is a modeling exercise in which relationships in space are brought down to a scale of two inches. Both lessons are based on educational materials created by the Smithsonian Astrophysical Observatory, in cooperation with NASA. All images needed for the lessons can be downloaded from this page.The issue also includes a profile of Smithsonian astronomer Lisa Kaltenegger, who is in the burgeoning business of âÂÂplanet huntingâÂÂâÂÂthe discovery of planets outside of our solar system. The first âÂÂexoplanetâ was discovered in 1995. There have been hundreds of discoveries since. The work is bringing closer to the fore a question in the back of anyoneâÂÂs mind when looking at the sky: Is anyone else out there?

2010-12-21

423

[Universal electrogustometer EG-1].  

PubMed

Electrogustometry has been used as a clinical tool for diagnosis and assessment of a variety of conditions. Since the lack of versatile electrogustometer for research and diagnosis, the new electrogustometer EG-1 was developed in 2006. It was done in cooperation between Warsaw University of Technology and Military Institute of Medicine in Warsaw. EG-1 allows quantitative estimation of taste perception threshold using both static and impulse electrogustometry with bipolar electrode. It is a fully autonomous, battery powered and portable instrument. Because of small size and weight, it can be easily placed in any environment. Microprocessor controlled measurement system and user-friendly interface (LCD display with simple keyboard) make EG-1 electrogustometer very handy and flexible in operation. Data obtained during measurements is stored in the internal device memory. After taste examinations measurement data can be transferred to a personal computer via inbuilt USB port for further analysis and storage. EG-1 can generate three predefined variously shaped current impulses: sinus-, saw- and rectangle-shaped. There is an optional possibility of creating own shapes of stimulus puls by the user. The electrical parameters of generated pulses are as follow: current amplitude 1-2000 microA regulated with 1 microA step, stimulus frequency 0(DC)-500 Hz regulated with 5 Hz step, controlable fulfillment factor and signal rise time (optional for automatic measurements). The operator can trigger the stimuli via a hand switch on the bipolar electrode (with gold-plated endings), via keyboard or via additional independent hand switch. Three years of experience collected during EG-1 exploitation allowed to design a new version of electrogustometer EG-2 with a touch panel and color graphical display. PMID:19886533

Pleskacz, Witold A; Wa?kanis, Andrzej; Rapiejko, Piotr; Jurkiewicz, Dariusz

424

Entropy of viscous Universe models  

NASA Astrophysics Data System (ADS)

The cosmological event horizon entropy and the apparent horizon entropy of the ?CDM and the Bianchi type I Universe model with viscosity has been calculated numerically, and analytically in the large time limit. It is shown that for these Universe models the cosmological event horizon entropy increases with time and for large times it approaches a finite maximum value. The effect of viscosity upon the entropy is also studied and we have found that its role is to decrease the entropy. The bigger the viscosity coefficient is the less the entropy will be. Furthermore, the radiation entropy for the ?CDM Universe model with and without viscosity is investigated, and together with the cosmological event horizon entropy are used to examine the validity of the generalized second law of thermodynamics, which states that the total rate of change of entropy of the Universe is never negative, in this Universe model.

Mostafapoor, Nouraddin; Grøn, Øyvind

2013-09-01

425

Harvard University: Ecology WWW Page  

NSDL National Science Digital Library

Hosted by Harvard University, this extensive list of hyperlinked, ecology-related resources and organizations was compiled by Anthony R. Brach (of the Harvard University Herbaria and Missouri Botanical Garden) for use by researchers, teachers, and students. Visitors can locate a wide variety of websites by browsing a 14-part alphabetical list, or by using a keyword search engine. Examples from the list include the Atlantic Cooperative Wildlife Ecology Research Network, the Center for Microbial Ecology at Michigan State University, Kansas State University Range Research, the Organization of Biological Field Stations, the U.S. National Agricultural Library, the Orthopterists' Society, and many more. The Ecology WWW Page has mirror sites in Canada, and at the University of Lyon, in France.

426

Acceleration of black hole universe  

NASA Astrophysics Data System (ADS)

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 ddot{M}(t) > 0. For a constant deceleration parameter q = -M(t) ddot{M}(t)/dot{M}(t) ˜-0.6, we can perfectly explain the type Ia supernova measurements with the reduced chi-square to be very close to unity, ? red˜1.0012. The expansion and acceleration of black hole universe are driven by external energy.

Zhang, T. X.; Frederick, C.

2013-10-01

427

Constraining the universal lepton asymmetry  

NASA Astrophysics Data System (ADS)

The relic cosmic background neutrinos accompanying the cosmic microwave background (CMB) photons may hide a universal lepton asymmetry orders of magnitude larger than the universal baryon asymmetry. At present, the only direct way to probe such an asymmetry is through its effect on the abundances of the light elements produced during primordial nucleosynthesis. The relic light element abundances also depend on the baryon asymmetry, parameterized by the baryon density parameter (\\eta_{\\mathrm {B}} \\equiv n_{\\mathrm {B}}/n_{\\gamma } ) and on the early-universe expansion rate, parameterized by the expansion rate factor (S \\equiv H'/H ) or, equivalently, by the effective number of neutrinos (N_{\

Simha, Vimal; Steigman, Gary

2008-08-01

428

Universality of hypercubic random surfaces  

NASA Astrophysics Data System (ADS)

We study universality properties of the Weingarten hyper-cubic random surfaces. Since a long time the model of hypercubic random surfaces with a local restriction forbidding surface self-bendings was thought to be in a different universality class from the unrestricted model defined on the full set of surfaces. In this paper we show that both models in fact belong to the same universality class with the entropy exponent ? = 1/(2) and differ by the finite size effects which are much more pronounced in the restricted model.

Bilke, S.; Burda, Z.; Petersson, B.

1997-02-01

429

Computational Capacity of the Universe  

NASA Astrophysics Data System (ADS)

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 10120 ops on 1090 bits ( 10120 bits including gravitational degrees of freedom).

Lloyd, Seth

2002-06-01

430

Complexity, universality and intermediate degrees  

NASA Astrophysics Data System (ADS)

This paper is a philosophical account of complexity versus universality. It seems sustainable to equate universal systems to complex systems or at least to potentially complex systems. Post's problem on the existence of (natural) intermediate degrees (between decidable and universal ?01) then finds its analog in the Principle of Computional Equivalence (PCE). In this abstract we address possible driving forces -if any- behind PCE. Both the natural aspects as well as the cognitive ones are investigated. We postulate a principle GNS that we call the Generalized Natural Selection principle that together with the Church-Turing thesis is seen to be equivalent in a sense to a weak version of PCE.

Joosten, Joost J.

2012-09-01

431

An Atlas of the Universe  

NSDL National Science Digital Library

Created by astrophysicist Richard Powell, An Atlas of the Universe is a Web site that allows visitors to see nine main maps of the universe, ranging from 12.5 light years to 15 billion light years from the sun. Each map then contains several other corresponding maps as well as descriptions of what is being shown. The maps give perspective to the vastness that lies beyond earth and explains, clearly and simply, things such as "where is the center of the universe" and "where did the big bang occur." Anyone interested in astronomy will enjoy the well organized and informative content.

Powell, Richard.

2000-01-01

432

Princeton University: Annals of Mathematics  

NSDL National Science Digital Library

The Annals of Mathematics is a bimonthly publication, which is "intended to serve the mathematical community." Originally, founded in 1884 by Ormond Stone of the University of Virginia, and later published by Harvard University, the Annals are now published by Princeton University and the Institute for Advanced Study. The website provides information for authors, including submission guidelines and information subscriptions to the Annals. An online index from issues published since 1994, as well as links to both AMS Reviews of the articles when available and electronic copies makes this articles highly accessible. Articles from 1884-1994 are available through JSTOR (link provided).

433

Universal planetary tectonics (supertectonics)  

NASA Astrophysics Data System (ADS)

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 the rotation axe. But this unevenness is undesirable because it creates tectonic stresses and increases energetic status that is against the natural tendency to minimize these physical characteristics. So, a body tends to lower angular momentum of tropics and increase it in extra-tropics. With the same angular velocity it remains only mass and radius to play in this tendency. Tropical belt is destructed (for an example, the lithosphere disintegration in solid bodies), extra-tropical belts add dense material (plumes), expand - the constructive tendency [6]. Both tectonic peculiarities-polyhedrons and constructive - destructive tendencies - are common for celestial bodies of various classes. They are characteristic for our star, planets, satellites and small bodies. That is why a term "supertectonics" seems rather suitable. References: [1] Kochemasov G.G. Concerted wave supergranulation of the solar system bodies // 16th Russian-American microsymposium on planetology, Abstracts, Moscow, Vernadsky Inst. (GEOKHI), 1992, 36-37. [2] Kochemasov G.G. Tectonic dichotomy, sectoring and granulation of Earth and other celestial bodies // Proceedings of the International Symposium on New Concepts in Global Tectonics, "NCGT-98 TSUKUBA", Geological Survey of Japan, Tsukuba, Nov 20-23, 1998, p. 144-147. [3] Kochemasov G.G. Theorems of wave planetary tectonics // Geophys. Res. Abstr., 1999, V.1, ?3, 700. [4] Kochemasov G.G. Plato' polyhedra as shapes of small icy satellites // Geophys. Res. Abstracts, Vol. 10, 2008, EGU2008-A-01271, CD-ROM; [5] Kochemasov G.G. (1999) "Diamond" and "dumb-bells"-like shapes of celestial bodies induced by inertia-gravity waves // 30th Vernadsky-Brown microsymposium on comparative planetology, Abstracts, Moscow, Vernadsky Inst.,, 49-50; [6] Kochemasov G.G. Tectonics of rotating celestial globes // Vernadsky-Brown microsymposium 48, 20-22 Oct. 2008, Moscow, Abstr. m48_20.

Kochemasov, G. G.

2009-04-01

434

Beyond Divestment: The Moral University.  

ERIC Educational Resources Information Center

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)

Pifer, Alan

1986-01-01

435

The TR University Research Scorecard.  

ERIC Educational Resources Information Center

|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)|

Zacks, Rebecca

2000-01-01

436

Online Courses: University of Maryland  

NSDL National Science Digital Library

The University of Maryland's Master of Chemical and Life Sciences degree enhances your knowledge, increases your expertise, and advances your career. Designed specifically for middle and high school science teachers, the 30-credit, content-based program o

1900-01-01

437

Hydrofoil Universal Digital Autopilot (HUDAP).  

National Technical Information Service (NTIS)

The Hydrofoil Universal Digital Autopilot (HUDAP) Assembly was used to demonstrate the feasibility of using a digital computer as part of an autopilot assembly to control a high performance, submerged foil hydrofoil craft. This report documents the HUDAP ...

F. S. Gamber R. Medeiros

1974-01-01

438

University and the Urban Challenge.  

National Technical Information Service (NTIS)

In the pamphlet HUD Secretary Henry G. Cisneros discusses aspects of the Department's role as a partner in fostering workable solutions to the issues confronting the Nation's urban areas. cisneros encourages universities to use their attributes to help cr...

H. G. Cisneros

1995-01-01

439

Universal PWR spectral history correction.  

National Technical Information Service (NTIS)

The accuracy of a form of universal correction for the difference between depletion conditions assumed in PWR assembly lattice calculations and those experienced in a reactor burn-up is investigated. The correction is based on lattice calculations in whic...

P. K. Hutt D. L. Nunn

1989-01-01

440

Age of the Universe: Concordance.  

National Technical Information Service (NTIS)

Arguments on the Age of the Universe, t(sub u), are reviewed. The four independent age determination techniques are: dynamics (Hubble Age and deceleration); oldest stars (globular clusters); radioactive dating (nucleocosmochronology); and white dwarf cool...

D. N. Schramm

1989-01-01

441

The early universe and cosmogenesis  

NASA Astrophysics Data System (ADS)

We extrapolate the Cosmological Standard Model to the past, determine initial geometrical conditions in the early universe, and consider a new cosmogenesis paradigm based on the concept of black-and-white holes with integrable singularities.

Lukash, V. N.; Mikheeva, E. V.; Strokov, V. N.

2013-05-01

442

Astronomy in the Digital Universe  

NASA Astrophysics Data System (ADS)

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.

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

2006-12-01

443

How Big Is Our Universe?  

NSDL National Science Digital Library

This interactive resource from Harvard Smithsonian Center for Astrophysics uses images and activities to understand the scope and scale of our universe. Featured are technologies used by generations of explorers.

Foundation, Wgbh E.

2005-12-17

444

Gravity and the Expanding Universe  

NSDL National Science Digital Library

This video segment, adapted from NOVA, traces the evolving history of theories about gravity and a force that may oppose it, along with our understanding of the impact of both of these forces on our expanding universe.

Foundation, Wgbh E.

2005-12-17

445

External Resource: The Expanding Universe  

NSDL National Science Digital Library

This Montana State University webpage activity is designed to help students gain a deeper understanding of cosmology. Students develop authentic models and gather evidence supporting the Big Bang theory. This lesson uses observation, interactive media,

1900-01-01

446

Neutrinos in the early universe  

NASA Astrophysics Data System (ADS)

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.

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

2012-12-01

447

Open Scholarship and Research Universities  

Microsoft Academic Search

Compare the cost per article for publication in commercial journals, not-profit journals, and open-access journals. For universities that support open-archives and open-access journal management software as part of standard university infrastructure, the financial cost of hosting an additional journal is quite low. Scholars who commit to editing and promoting a journal need to focus primarily on the intellectual tasks with

Malcolm Getz; Nashville TN

2005-01-01

448

Universal acquired melanosis: carbon baby.  

PubMed

We report a 3-year-old boy born with light brown skin that progressively became much darker. The color change was insidious in onset at the age of 3 months, asymptomatic, and progressive involving the entire body surface. Hyperpigmentation may be congenital or acquired, hereditary or nonhereditary, localized or universal, of known or unknown origin. Universal acquired melanosis is a rare form of hyperpigmentation, which has been synonymously referred to as ''carbon baby.'' PMID:24010507

Niiyama, Shiro; Bando, Yuki; Ishii, Masahiro; Katsuoka, Kensei

2013-07-14

449

Windows to the Universe: Mercury  

NSDL National Science Digital Library

This site, created by a partnership between the University of Michigan and the University Corporation for Atmospheric Research (UCAR) offers information on the planet Mercury. Some topics include: the atmosphere, surface, and interior of Mercury, missions to Mercury, recent discoveries, and myths and culture related to Mercury. There are also numerous pictures and additional websites to find more information. A Spanish translation to this useful website is also available.

2009-05-22

450

Phenomenology of universal extra dimensions  

SciTech Connect

In this proceeding, the phenomenology of Universal Extra Dimensions (UED), in which all the Standard Model fields propagate, is explored. We focus on models with one universal extra dimension, compactified on an S{sub 1}/Z{sub 2} orbifold. We revisit calculations of Kaluza-Klein (KK) dark matter without an assumption of the KK mass degeneracy including all possible coannihilations. We then contrast the experimental signatures of low energy supersymmetry and UED.

Kong, Kyoungchul; Matchev, Konstantin T.; /Florida U.

2006-10-01

451

Early Universe Observations with TMT  

NASA Astrophysics Data System (ADS)

Time evolution of our universe can be probed directly by observing objects at very high redshifts. In near future we will be able to have a detailed observations of high redshift galaxies and Intergalactic medium thanks to large collecting area and high spatial resolution capabilities of Tirty meter telescope, In this talk I will review various observational programmes with TMT that can allow us to uncover the early universe in detail.

Srianand, Raghunathan

2012-07-01

452

A Universe without Weak Interactions  

SciTech Connect

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.

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

2006-04-07

453

A universe without weak interactions  

SciTech Connect

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 multiparameter 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.

Harnik, Roni [Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States); Physics Department, Stanford University, Stanford, California 94305 (United States); Kribs, Graham D. [Department of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (United States); Perez, Gilad [Theoretical Physics Group, Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 (United States)

2006-08-01

454

Universal particle flux pressure converter  

US Patent & Trademark Office Database

The design of Shaded Rotor devices to demonstrate the existence of a hypothetical Universal Particle Flux Field is presented. These devices should extract a measurable amount of energy from this Field. We believe the Universal Particle Flux Field can explain all invisible forces at a distance phenomena between masses, charged bodies, and magnetic materials. We propose that the Universal Particle Flux Field is a simultaneously convergent/divergent field, where the particle streams traverse to any point in the Universe from every other point in the Universe. The order of this Flux Field is a nearly perfect disorder, which is an order in itself. The strength of the gravitational component of this Field is conventionally denoted by "G". Two neutral masses immersed in such Flux Field will develop forces between them, which are consistent with Newton's Equation of Gravitation. This Field is also consistent with Electrostatic, and Magnetic Force Equations. A magnetic rotor is preferentially shaded with a magnetic stator so that a net torque exists on the rotor. This principle is also applied to an electrostaticly charged Shaded Rotor device. The possibilities that the Beta, the Muon, and the Tau Neutrinos are the Universal Particles and they are producing the Electrostatic, Magnetic, and Gravitational Force Fields respectively, are explored. Laboratory sized Shaded Rotor Devices can be constructed using magnetic and/or electrostatic components; detailed designs are described herein. Circumstantial evidences described herein, indicate that the Universal Gravitational Constant "G" hence the "g" of the Earth is direction and time variable, and it has significantly increased during the last several hundred million years; this may account for the demise of the Dinosaurs, and of the giant vegetation.

2002-03-05

455

Traveling in the Computational Universe  

NASA Astrophysics Data System (ADS)

The concept of travel, specifically ``space travel'', cannot be separated from the concept of ``Universe'', because the Universe is where space and time acquire their significance, along with their properties, possibilities and limitations. Mankind is strongly focused on a four dimensional Universe, with its Lorentzian or Euclidean interpretation. It is still a puzzle about the fact that the four dimensional Universe seems to have a beginning, therefore there seem to be boundaries in space-time and we would like to know the nature of those boundaries and its endpoints. To better understand the deep significance of our best physical theories it could be interesting to compare our Universe with its models. It may happen that the differences between the model and reality can be made indistinguishable, to the point that it may seem acceptable to consider reality as a gigantic program, a ``mother computation'' running in a Universal Computer. The computational interpretation of reality is here adopted for introducing concepts that are common in computer science, they may offer a new insight. For instance, code and memory usage optimization techniques are common in computer science because they improve the performances at a reduced hardware cost. According to the concepts discussed in this paper, the possibility of recognizing the effects of optimization rules in a physical reality will allow us to discriminate if our reality is fundamental or the result of a large computation. Conversely, code and memory optimization has side effects, if it is present in our Universe it can produce many interesting phenomena, some seem readily recognizable, others only wait to be discovered. The science of Space Travel appears suitable for the experimental test of these conceptualizations.

Fontana, Giorgio

2006-01-01

456

Coping Styles in Patients with Anxiety and Depression  

PubMed Central

Different individuals use different coping styles to cope with their problems. In patients with anxiety and/or depression, these have important implications. The primary objective of our study was to estimate the frequency of different coping mechanisms used by patients with symptoms of anxiety and depression. A descriptive, cross-sectional survey was conducted and patients with symptoms of anxiety and depression were identified using the Aga Khan University's Anxiety and Depression Scale (AKUADS). Coping styles were determined by using the 28-item Brief COPE inventory. We were able to recruit 162 people. The prevalence of anxiety and depression was found to be 34%. Females were more than 2 times likely to have anxiety and depression (P value = 0.024, OR = 2.62). In patients screening positive for AKUADS, “religion” was the most common coping mechanism identified. “Acceptance”, “Use of instrumental support”, and “Active coping” were other commonly used coping styles. Our findings suggest that religious coping is a common behavior in patients presenting with symptoms anxiety and depression in Pakistan. Knowledge of these coping styles is important in the care of such patients, as these coping methods can be identified and to some extent modified by the treating clinician/psychiatrist.

Kasi, Pashtoon Murtaza; Naqvi, Haider Ali; Afghan, Abaseen Khan; Khawar, Talha; Khan, Farooq Hasan; Khan, Umber Zaheer; Khuwaja, Urooj Bakht; Kiani, Jawad; Khan, Hadi Mohammad

2012-01-01

457

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

PubMed

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. PMID:23172105

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

2012-11-21

458

Agreement Between Serology and Histology for Detection of Helicobacter pylori Infection.  

PubMed

Objective: To determine the percentage agreement between serology and histology for detection of Helicobacter (H.) pylori infection. Study Design: Cross-sectional analytical study. Place and Duration of Study: Department of Pathology and Microbiology, The Aga Khan University and Hospital, Karachi, from January to December 2009. Methodology: Fifty subjects were selected by non-probability purposive sampling from laboratory data who had serological testing of H. pylori IgG antibody, prior to histological evaluation of endoscopic gastric or/and duodenal biopsies. Serological Quantification of H. pylori IgG was carried out with HpG screen ELISA kit (Genesis Diagnostics, UK), using an enzyme linked immunosorbent assay for detection of IgG antibodies against H. pylori. Manufacturer's recommended cutoff value was used and results were considered positive when greater than 7 U/ml. For histological diagnosis, an expert histopathologist characterized the presence of spiral bacteria in the mucosal layer or the surface of epithelial cells on microscopic examination, as a positive test. Results: An agreement of 0.72 was found by Kappa statistics between serology and histopathology results and a good diagnostic accuracy (86%) of serological testing was observed for the diagnosis of H. pylori infection. Conclusion: A substantial agreement was found between serology and histopathology results to detect the H. pylori infection. Laboratory-based serologic testing using ELISA technology to detect IgG antibodies is inexpensive, noninvasive and convenient method to detect the H. pylori infection in primary care setting. PMID:24169385

Iqbal, Sahar; Fatima, Samia; Raheem, Ahmed; Khan, Aysha Habib

2013-11-01

459

Pandemic influenza A(H1N1)pdm09: An unrecognized cause of mortality in children in Pakistan.  

PubMed

Abstract The role of influenza virus as a cause of child mortality in South Asia is under-recognized. We aimed to determine the incidence and case fatality rate of influenza A(H1N1)pdm09 infections in hospitalized children in Karachi, Pakistan. Children less than 5 y old admitted with respiratory illnesses to the Aga Khan University Hospital, Karachi, from 17 August 2009 to 16 September 2011, were tested for influenza A(H1N1)pdm09 using a real-time reverse transcriptase polymerase chain reaction. Out of 2650 children less than 5 y old admitted with a respiratory illness during the study period, 812 (31%) were enrolled. Influenza A(H1N1)pdm09 virus was detected in 27 (3.3%) children. There were 4 deaths in children who tested positive for influenza A(H1N1)pdm09 (case fatality rate of 15%). Children with influenza A(H1N1)pdm09 were 5 times more likely to be admitted or transferred to the intensive care unit, 5.5 times more likely to be intubated, and 12.9 times more likely to die as compared to children testing negative for influenza A(H1N1)pdm09. PMID:23826795

Ali, Syed Asad; Aziz, Fatima; Akhtar, Nida; Qureshi, Shahida; Edwards, Kathryn; Zaidi, Anita

2013-07-05

460

Awareness and Use of Benzodiazepines in Healthy Volunteers and Ambulatory Patients Visiting a Tertiary Care Hospital: A Cross Sectional Survey  

PubMed Central

Background Indiscriminate prescription of Benzodiazepines in Pakistan and subsequent availability over-the-counter without prescription is a major public health problem, requiring systematic inquiry through research. Additionally, there is limited data on the awareness and use of Benzodiazepines from developing countries making it impossible to devise meaningful health policies. Methodology/Principal Findings This was an Observational, Cross-Sectional study. conducted at Aga Khan University. A total of 475 (58.5% males, 41.5% females) people visiting a tertiary care hospital were interviewed by means of a structured questionnaire. The results showed that majority of population was aware of one or more Benzodiazepines (80.4%) and 30.4% had used them at some point in life. 42.4% of the users had been using it for more than a year. Commonest reason for use was sleep disturbance. Frequency of usage was higher for females, married individuals, educated (>Grade12), high socioeconomic status and housewives. More (59%) were prescribed than not and of them most by GP (58.5%). Only 36.5% of them were particularly told about the long-term addiction potential by the use of these drugs. Conclusion Easy availability, access to re-fills without prescription and self prescription compounded with the lack of understanding of abuse potential of benzodiazepines constitutes a significant problem demanding serious consideration from health policy makers.

Raoof, Mustafa; Nawaz, Haq; Nusrat, Rabeeya; Pabaney, Aqueel Hussain; Randhawa, Ali Raza; Rehman, Rabeea; Rizvi, Nida Butool; Naqvi, Haider

2008-01-01

461

Risk factors predisposing to congenital heart defects  

PubMed Central

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.

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

462

Four year experience of sarcoma of soft tissues and bones in a tertiary care hospital and review of literature  

PubMed Central

Background Sarcoma encompasses an uncommon group of cancer and the data is insufficient from Pakistan. We report our four years experience of Sarcoma of soft tissues and bones. Methods This cross sectional study was carried out at Aga Khan University Hospital from 2004 to 2008. The patients were divided into two groups from the outset i.e. initially diagnosed and relapsed group and separate sub group analysis was conducted. Results Out of 93 newly diagnosed patients, 58 belonged to bone sarcoma and 35 to soft tissue sarcoma group. While for relapsed patients, 5 had soft tissue sarcoma and 9 had bone sarcoma. Mean age was 32.5 years. At presentation, approximately two third patients had localised disease while remaining one third had metastatic disease. The Kaplan Meier estimate of median recurrence free survival was 25 months, 35 months, and 44 months for Osteogenic sarcoma, Ewing's sarcoma and Chondrosarcoma respectively. For Leiomyosarcoma and Synovial sarcoma, it was 20 and 19 months respectively. The grade of the tumour (p = 0.02) and surgical margin status (p = 0.001) were statistically significant for determination of relapse of disease. Conclusion The median recurrence free survival of patients in our study was comparable to the reported literature but with significant lost to follow rate. Further large-scale, multi centre studies are needed to have a more comprehensive understanding of this heterogeneous disease in our population.

2011-01-01

463

Utility of Limited Protocol Magnetic Resonance Imaging Lumbar Spine for Nerve Root Compression in a Developing Country, Is It Accurate and Cost Effective?  

PubMed Central

Study Design Cross sectional study. Purpose To determine the accuracy of the screening magnetic resonance study of the lumbar spine in the diagnosis of nerve root compression in cases of low back pain as compared to the routine magnetic resonance imaging (MRI) study of the lumbar spine. Overview of Literature No local study has been conducted for this purpose. In an international study, the reported sensitivity and specificity of screening MRI lumbar spine protocol in the detection of nerve root compression are 54% and 100% respectively. Methods Patients of both genders older than 20 years of age with low back pain of any duration or any severity who were referred to the radiology department of Aga Khan University Hospital for MRI of their lumbar spine were evaluated. Two sets of MRI imaging were recruited for each patient: one labeled as 'screening' and the other labeled as 'routine'. The findings of screening MRI were compared with the findings of the routine MRI study. Results A total of 109 patients fulfilling the inclusion criteria were included in this study. The diagnostic accuracy, specificity and sensitivity of the screening protocol in our study was 100%, 100% and 100%, respectively in comparison with the routine MRI lumbar spine study for the detection of nerve root compression. Conclusions Our data proved that the MRI screening study is a highly accurate tool, and its findings are comparable to the routine study for the detection of nerve root compression especially in cases of lumbar spondylosis.

Hilal, Kiran; Sajjad, Zafar; Khan, Dawar

2013-01-01

464

University Reactor Conversion Lessons Learned Workshop for Purdue University Reactor  

SciTech Connect

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.

Eric C. Woolstenhulme; Dana M. Hewit

2008-09-01

465

Star Formation in Galaxy Mergers: Scaling up a universal process or a violent mode of SF?  

Microsoft Academic Search

I briefly review some measures of star formation rates in galaxies and\\u000adiscuss their respective uncertainties before outlining the range of star\\u000aformation rates encountered in starbursts from isolated dwarf through massive\\u000agas-rich interacting systems. I present our current understanding of molecular\\u000acloud masses and structures and on star formation processes and efficiencies in\\u000astarburst and interacting galaxies. Star cluster

U. Fritze-v. Alvensleben

2004-01-01

466

Interdimensional universality of dynamic interfaces.  

PubMed

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

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

467

Library Lectures: Georgetown University Library  

NSDL National Science Digital Library

The Georgetown University Library sponsors a wide range of events each academic year, and they have created this website for those curious individuals who might want to revisit a talk or event they might have missed. The programs are divided into three categories, including "Library Associates Events" and "Georgetown University Forum". All told, there are about a dozen events here currently, and new events continue to be added on a regular basis. Some of the more recent programs include conversations like "Food Politics: Personal vs. Social Responsibility for Dietary Choices" and "The Myth of the Rational Voter: Why Democracies Choose Bad Policies". The site is rounded out by a link to some of the other digital initiatives at the Georgetown University Library and a feedback section.

468

Tuning universality far from equilibrium.  

PubMed

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

Karl, Markus; Nowak, Boris; Gasenzer, Thomas

2013-08-01

469

Writing at Colorado State University  

NSDL National Science Digital Library

The Colorado State University has a rather wonderful set of online resources designed to help people become better writers. Most of these materials are offered right here on the Writing at Colorado State University website, where visitors will find ten different thematic guides. These guides deal primarily with writing in engineering, and they include Communicating as a Civil Engineer, Engineering Proposals, and Environmental Policy Statements. On the right-hand side of the homepage, visitors will find sections like Writing Processes and Writing Documents. These areas have more detailed areas like Starting to Write, Revising & Editing, and Publishing. Taken as a whole, these sections offer a broad range of specific guides to becoming a better writer. Finally, the site contains links to other relevant sites from university and college writing centers.

2012-06-22

470

Big questions about the universe  

NASA Astrophysics Data System (ADS)

Astronomy is not only a branch of science but also an important part of the culture and civilisations of peoples. Starting with archeoastronomy to the present day, it has always contributed to a better understanding of life, of humanity. After 400 years of modern astronomy, it still addresses major problems such as: Why there is something rather than nothing? Why is nature comprehensible to humans? How is cosmos related to humanity? Do multiverses exist? Is there life on other planets? Are we alone in the universe? Does the universe have a beginning? If so, what does it mean? How did the universe originate? All these questions are a challenge for interdisciplinary and transdisciplinary investigations, for philosophers, physicists, cosmologists, mathematicians, theologians. The new insights gained by pursuing in depth these common investigations will shape the society we live in and have important consequences on the future we are creating.

Stavinschi, Magda

2011-06-01

471

Spectacular Crashes in the Universe  

NSDL National Science Digital Library

Spectacular Crashes in the Universe is a Windows to the Universe Exploratour and provides information and images about plate tectonics, colliding galaxies, and comets. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging web site that spans the Earth and Space sciences and includes a rich array of documents, including images, movies, animations, and data sets that explore the Earth and Space sciences and the historical and cultural ties between science, exploration and the human experience. Links at the top of each page allow users to navigate between beginner, intermediate, and advanced options for each topic level.

Johnson, Roberta

2000-07-01

472

Dark matter in the universe  

NASA Astrophysics Data System (ADS)

What is the quantity and composition of material in the Universe? This is one of the most fundamental questions we can ask about the Universe, and its answer bears on a number of important issues including the formation of structure in the Universe, and the ultimate fate and the earliest history of the Universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand. Most of the radiation in the Universe does not give off detectable radiation; it is dark. The dark matter associated with bright galaxies contributes somewhere between 10 and 30 percent of the critical density; baryonic matter contributes between 1.1 and 12 percent of the critical. The case for the spatially flat, Einstein-de Sitter model is supported by three compelling theoretical arguments - structure formation, the temporal Copernican principle, and inflation - and by some observational data. If Omega is indeed unity, or even just significantly greater than 0.1, then there is a strong case for a Universe comprised of nonbaryonic matter. There are three well motivated particle dark matter candidates: an axion of mass 10 -6 eV to 10 -4 eV; a neutrino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either planned or are underway.

Turner, Michael S.

1991-03-01

473

Dark matter in the universe  

NASA Astrophysics Data System (ADS)

What is the quantity and composition of material in the universe? This is one of the most fundamental questions we can ask about the universe, and its answer bears on a number of important issues including the formation of structure in the universe, and the ultimate fate and the earliest history of the universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand: most of the material in the universe does not give off detectable radiation, i.e., is dark; the dark matter associated with bright galaxies contributes somewhere between 10 and 30 percent of the critical density (by comparison luminous matter contributes less than 1 percent); baryonic matter contributes between 1.1 and 12 percent of critical. The case for the spatially-flat, Einstein-de Sitter model is supported by three compelling theoretical arguments -- structure formation, the temporal Copernican principle, and inflation -- and by some observational data. If (Omega) is indeed unity--or even just significantly greater than 0.1--then there is a strong case for a universe comprised of nonbaryonic matter. There are three well motivated particle dark-matter candidates: an axion of mass 10-6 eV to 10-4 eV; a neutralino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either being planned or are underway.

Turner, M. S.

1991-03-01

474

Dark matter in the Universe  

SciTech Connect

What is the quantity and composition of material in the universe This is one of the most fundamental questions we can ask about the universe, and its answer bears on a number of important issues including the formation of structure in the universe, and the ultimate fate and the earliest history of the universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand: most of the material in the universe does not give off detectable radiation, i.e., is dark;'' the dark matter associated with bright galaxies contributes somewhere between 10% and 30% of the critical density (by comparison luminous matter contributes less than 1%); baryonic matter contributes between 1.1% and 12% of critical. The case for the spatially-flat, Einstein-de Sitter model is supported by three compelling theoretical arguments -- structure formation, the temporal Copernican principle, and inflation -- and by some observational data. If {Omega} is indeed unity--or even just significantly greater than 0.1--then there is a strong case for a universe comprised of nonbaryonic matter. There are three well motivated particle dark-matter candidates: an axion of mass 10{sup {minus}6} eV to 10{sup {minus}4} eV; a neutralino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either being planned or are underway. 71 refs., 6 figs.

Turner, M.S. (Fermi National Accelerator Lab., Batavia, IL (USA) Chicago Univ., IL (USA). Enrico Fermi Inst.)

1991-03-01

475

Dark matter in the universe  

SciTech Connect

What is the quantity and composition of material in the Universe This is one of the most fundamental questions we can ask about the Universe, and its answer bears on a number of important issues including the formation of structure in the Universe, and the ultimate fate and the earliest history of the Universe. Moreover, answering this question could lead to the discovery of new particles, as well as shedding light on the nature of the fundamental interactions. At present, only a partial answer is at hand: Most of the material in the Universe does not give off detectable radiation, i.e., is dark;'' the dark matter associated with bright galaxies contributes somewhere between 10% and 30% of the critical density (by comparison luminous matter contributes less than 1%); baryonic matter contributes between 1.1% and 12% of critical. The case for the spatially-flat, Einstein-de Sitter model is supported by three compelling theoretical arguments--structure formation, the temporal Copernican principle, and inflation--and by some observational data. If {Omega} is indeed unity--or even just significantly greater than 0.1--then there is a strong case for a Universe comprised of nonbaryonic matter. There are three well motivated particle dark-matter candidates: an axion of mass 10{sup {minus}6} eV to 10{sup {minus}4} eV; a neutralino of mass 10 GeV to about 3 TeV; or a neutrino of mass 20 eV to 90 eV. All three possibilities can be tested by experiments that are either being planned or are underway. 63 refs.

Turner, M.S. (Fermi National Accelerator Lab., Batavia, IL (USA) Chicago Univ., IL (USA). Enrico Fermi Inst.)

1990-11-01

476

Universe Awareness For Young Children  

NASA Astrophysics Data System (ADS)

Universe Awareness (UNAWE) is an international programme that will expose economically disadvantaged young children aged between 4 and 10 years to the inspirational aspects of modern astronomy. The programme is motivated by the premise that access to simple knowledge about the Universe is a basic birth right of everybody. These formative ages are crucial in the development of a human value system. This is also the age range in which children can learn to develop a 'feeling' for the vastness of the Universe. Exposing young children to such material is likely to broaden their minds and stimulate their world-view. The goals of Universe Awareness are in accordance with two of the United Nations Millennium goals, endorsed by all 191 UN member states, namely (i) the achievement of universal primary education and (ii) the promotion of gender equality in schools. We propose to commence Universe Awareness with a pilot project that will target disadvantaged regions in about 4 European countries (possibly Spain, France, Germany and The Netherlands) and several non-EU countries (possibly Chile, Colombia, India, Tunisia, South Africa and Venezuela). There will be two distinct elements in the development of the UNAWE program: (i) Creation and production of suitable UNAWE material and delivery techniques, (ii) Training of educators who will coordinate UNAWE in each of the target countries. In addition to the programme, an international network of astronomy outreach will be organised. We present the first results of a pilot project developed in Venezuela, where 670 children from different social environments, their teachers and members of an indigenous tribe called Ye´kuana from the Amazon region took part in a wonderful astronomical and cultural exchange that is now being promoted by the Venezuelan ministry of Education at the national level.

Scorza, C.; Miley, G.; Ödman, C.; Madsen, C.

2006-08-01

477

Online Courses: University of Massachusetts Amherst: Discovering the Universe  

NSDL National Science Digital Library

In this course, you will: Develop a solid grasp of how we know "where'' and "when'' we are in the universe, the ways in which we are able to explore remote objects, and how to convey these ideas to students through projects and activities.

1900-01-01

478

Universalism Values and the Inclusiveness of Our Moral Universe  

Microsoft Academic Search

Inclusiveness of the moral universe refers to the breadth of the community to which people apply moral values and rules of fairness. A preliminary study establishes the values typically viewed as moral. The author indexes moral inclusiveness at the societal level by the number of value items focused on the welfare of non-in-group members that form a distinct region in

Shalom H. Schwartz

2007-01-01

479

Louisiana State University: Tourmaline Today  

NSDL National Science Digital Library

This Louisiana State University website features its research of the mineral tourmaline, which can provide "information on the thermal and fluid history of rocks in which it develops, is intimately associated with some of the world's premier metallic ore deposits, retains chemical signatures of the sources of tourmaline detritus in clastic rocks", and has many additional valuable petrogenetic features. Researchers can find downloads of abstracts and publications of the University's investigations. Students and educators can find information on tourmaline crystal structure, classification, and the highest concentrations of cations and anions in tourmaline.

Henry, Darrell James, 1951-

480

Geometry for the accelerating universe  

SciTech Connect

The Lorentzian spacetime metric is refined to an area metric which naturally emerges as a generalized geometry in quantum string and gauge theory. Employing the area metric curvature scalar, the Einstein-Hilbert gravitational action is reinterpreted as dynamics for an area metric. The area metric cosmology of the radiation-dominated early universe does not depart from general relativity, enabling successful nucleosynthesis. But intriguingly, without the need for dark energy or fine-tuning, area metric cosmology explains the observed small acceleration of the late universe.

Punzi, Raffaele [Dipartimento di Fisica 'E. R. Caianiello', Universita di Salerno, 84081 Baronissi (Italy) and INFN-Gruppo Collegato di Salerno (Italy); Schuller, Frederic P. [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A. Postal 70-543, Mexico D.F. 04510 (Mexico) and Max Planck Institut fuer Gravitationsphysik, Albert Einstein Institut, Am Muehlenberg 1, 14467 Potsdam (Germany); Wohlfarth, Mattias N. R. [Center for Mathematical Physics and II. Institut fuer Theoretische Physik, Universitaet Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany)

2007-11-15

481

Can the universe afford inflation?  

SciTech Connect

Cosmic inflation is envisioned as the 'most likely' start for the observed universe. To give substance to this claim, a framework is needed in which inflation can compete with other scenarios and the relative likelihood of all scenarios can be quantified. The most concrete scheme to date for performing such a comparison shows inflation to be strongly disfavored. We analyze the source of this failure for inflation and present an alternative calculation, based on more traditional semiclassical methods, that results in inflation being exponentially favored. We argue that reconciling the two contrasting approaches presents interesting fundamental challenges, and is likely to have a major impact on ideas about the early universe.

Albrecht, Andreas; Sorbo, Lorenzo [Department of Physics, UC Davis, One Shields Avenue, Davis, California 95616 (United States)

2004-09-15

482

University of California: California Agriculture  

NSDL National Science Digital Library

Based on our nation's heavy reliance on food grown in California, this University of California publication regarding the agricultural affairs of the 31st state will be appreciated by researchers and agriculturalists from around the country. First published in 1946, "_California Agriculture_ is a peer-reviewed journal reporting research, reviews and news from the Division of Agriculture and Natural Resources of the University of California." Site visitors may view abstracts or full text documents of research articles from current and previous issues. In addition, free domestic subscriptions may be ordered online (the journal currently serves around 14,000 domestic subscribers). The site also provides downloadable guidelines for writers.

2008-09-22

483

The Universal Black Pages (UBP)  

NSDL National Science Digital Library

The Universal Black Pages, created and developed through the efforts of members of the Black Graduate Students Association at Georgia Tech University, is a comprehensive page of pointers to subjects related to "the African Diaspora." Included are sections on upcoming events, African American as well as other African Diaspora businesses, Black school and student organizations in Africa and the Americas, Diaspora country pages from the Abayudaya Jews of Uganda to Zimbabwe, the arts, entertainment, music, professional organizations, and engineering, science, and technology, among others. The hundreds of pointers make this site one of the most comprehensive listings of African American and international Black productions and resources.

1996-01-01

484

The Creation of the Universe  

ScienceCinema

Gravity and quantum theory cause the Universe to be spontaneously created out of nothing. Most of these universes are quite unlike our own but we select out a subset that are compatible with what we observe. Please note that Professor Hawking's talk will be broadcasted in the following rooms : TH auditorium (4-3-006) TE auditorium (30-7-018) 40-S2-A01 40-S2-C01 BE Meyrin (6-2-024) BE Prévessin (864-1-D02)

485

University of Maryland: Astronomy Workshop  

NSDL National Science Digital Library

Professor Douglas P. Hamilton and his students at the University of Maryland created this website to provide individuals with astronomy tools and tutorials. At the Astronomy Classroom, students can create scaled models, find out how long it takes to get to interesting places in the Universe, and explore the history of the cosmos. The website offers solar system calculators, animations of solar objects' orbits, simulations of the seasons, and much more. Visitors can also check out the newest additions to the site and can find out what are the most popular tools of the day.

486

How Did the Universe Begin?  

NSDL National Science Digital Library

This fun Web site is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about the work of Edwin Hubble and how his work contributed to the formation of the Big Bang Theory. The site begins by briefly explaining Hubble's discoveries. It then explains how Belgian astronomer Georges Lema used Hubble's discovery to answer the question of the universe's origin with what later became known as the Big Bang Theory. A link to "The Big Bang" explains the theory in five kid-friendly steps. The site also includes a link to a "Create Your Own Timeline of the Universe" activity.

487

Adjusting to university: the Hong Kong experience  

Microsoft Academic Search

Students' adjustment to the university environment is an important factor in predicting university outcomes and is crucial to their future achievements. University support to students' transition to university life can be divided into three dimensions: academic adjustment, social adjustment and psychological adjustment. However, these relationships have not been studied simultaneously in previous studies. The purpose of this study is to

Hon Keung Yau; Hongyi Sun; Alison Lai Fong Cheng

2012-01-01

488

The Need for a "Shadow" University  

ERIC Educational Resources Information Center

The modern university has become a subsystem within the technological system. As such, the university has lost its autonomy. Every aspect of the university--administration, pedagogy, research--has become specialized and technical. Success, power, and efficiency are its only values. An alternative to the modern university is briefly explored.…

Stivers, Richard

2006-01-01

489

What's Make University Students Participate in Sports?  

Microsoft Academic Search

The purpose of this study is to examine what are the extrinsic factors that contribute to university athlete's motivation to participate in sports during their study at university. A sample of 11 athletes university footballer in one of the University team in Kuala Lumpur were invited by the researchers for the study, however only five (aged range from 19 to

Mohd Sofian Omar-Fauzee; Narimah Daud; Kamaria Kamarudin; Aminuddin Yusof; Soh Kim Geok; Mohd Nizam Nazaruddin

490

University Sponsorship of Charter Schools in Indiana  

ERIC Educational Resources Information Center

There is a dearth of research on the subject of university sponsorship of charter schools. This report intends to increase the knowledge base on university sponsorship of charter schools by examining the climate in Indiana, specifically in regard to the decision by only one (Ball State) of the eligible five universities (Ball State University,…

Plucker, Jonathan A.; Simmons, Ada B.; Eckes, Suzanne E.; Rapp, Kelly E.; Benton, Sarah A.; Nowak, Jeffrey

2004-01-01

491

The Managerialist University: An Economic Interpretation  

ERIC Educational Resources Information Center

The rise of the managerialist university, in terms of a shift towards supposed corporate forms of governance in universities, associated also with greater competition between universities, has been the subject of considerable controversy. Dissent with respect to these developments has commonly appealed to the notion of the university as a special…

Aspromourgos, Tony

2012-01-01

492

Economic and cultural factors affecting university excellence  

Microsoft Academic Search

Purpose – The ranking of top universities in the world has generated increased interest in the factors that enhance university performance. The purpose of this paper is to identify economic and cultural factors that affect the number of top ranking universities in each country. Design\\/methodology\\/approach – This paper first identifies the number of universities ranked among the first 300 in

Naceur Jabnoun

2009-01-01

493

University Management in a Changing Environment  

ERIC Educational Resources Information Center

|The effects of the changing economic and social environment of universities are examined. It is suggested that the next decade will be one of increasing competition between universities and between them and the non-university sector of higher education. Universities will become more market-oriented and more responsive to consumer-students. (LBH)|

Doyle, Peter; Lynch, James E.

1976-01-01

494

Academic Norms and the University Committee.  

ERIC Educational Resources Information Center

|The metropolitan university is viewed from the context of individual, group, and university level of social interaction. Metropolitan universities are defined as state-supported public universities located in urban areas and legislatively mandated as teaching institutions. Resources are usually dependent upon the number of full-time equivalent…

Fenton, Joann C.

495

The Privatization of Public University Research Libraries  

ERIC Educational Resources Information Center

Are we witnessing the privatization of public university research libraries? There is convincing evidence that, in an era of decreasing state support for public higher education, public universities have begun to resemble private universities, particularly in their sources of revenue. A number of indicators demonstrate that public universities,…

Franklin, Brinley

2007-01-01

496

A Christian Critique of the University.  

ERIC Educational Resources Information Center

|Views on the place and power of the university, the church's role in the university, and the sciences and humanities are presented. The secularization of western universities raises fundamental criticisms from the Christian point of view that the university atmosphere is not congenial to Christian spiritual values, and that higher education…

Malik, Charles Habib

497

Five Decades of Nigerian University Library Buildings  

Microsoft Academic Search

This paper discusses Nigerian university library buildings from 1948, when the first university institution was established, up to 1998. Through the use of a questionnaire, study visits to 12 of the 31 university libraries, interviews with library staff and review of the literature, it was found that all Nigerian university libraries started from temporary sites. While all five first generation

A. T. AGBOOLA

2001-01-01

498

The Globalization of College and University Rankings  

ERIC Educational Resources Information Center

|In the era of globalization, accountability, and benchmarking, university rankings have achieved a kind of iconic status. The major ones--the Academic Ranking of World Universities (ARWU, or the "Shanghai rankings"), the QS (Quacquarelli Symonds Limited) World University Rankings, and the "Times Higher Education" World University Rankings…

Altbach, Philip G.

2012-01-01

499

The Emergent African University: An Interpretation.  

ERIC Educational Resources Information Center

The present document presents an account of the development of higher education in Africa up to 1970. It considers the idea of the university in Africa; the metropolitan form of the university with emphasis on the economic aspects, the growth and influence on urban life, and the politics of university formation; the university in its traditional…

de Kiewiet, C. W.

500

A Christian Critique of the University.  

ERIC Educational Resources Information Center

Views on the place and power of the university, the church's role in the university, and the sciences and humanities are presented. The secularization of western universities raises fundamental criticisms from the Christian point of view that the university atmosphere is not congenial to Christian spiritual values, and that higher education…

Malik, Charles Habib