To see the other types of publications on this topic, follow the link: GRE physics.

Journal articles on the topic 'GRE physics'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'GRE physics.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Memory, J. D. "Physics Intentions and the GRE." Physics Today 55, no. 7 (2002): 83. http://dx.doi.org/10.1063/1.1506766.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Miller, Casey W., Benjamin M. Zwickl, Julie R. Posselt, Rachel T. Silvestrini, and Theodore Hodapp. "Typical physics Ph.D. admissions criteria limit access to underrepresented groups but fail to predict doctoral completion." Science Advances 5, no. 1 (2019): eaat7550. http://dx.doi.org/10.1126/sciadv.aat7550.

Full text
Abstract:
This study aims to understand the effectiveness of typical admissions criteria in identifying students who will complete the Physics Ph.D. Multivariate statistical analysis of roughly one in eight physics Ph.D. students from 2000 to 2010 indicates that the traditional admissions metrics of undergraduate grade point average (GPA) and the Graduate Record Examination (GRE) Quantitative, Verbal, and Physics Subject Tests do not predict completion as effectively admissions committees presume. Significant associations with completion were found for undergraduate GPA in all models and for GRE Quantit
APA, Harvard, Vancouver, ISO, and other styles
3

Miller, Casey W., Benjamin M. Zwickl, Julie R. Posselt, Rachel T. Silvestrini, and Theodore Hodapp. "Response to comment on “Typical physics Ph.D. admissions criteria limit access to underrepresented groups but fail to predict doctoral completion”." Science Advances 6, no. 23 (2020): eaba4647. http://dx.doi.org/10.1126/sciadv.aba4647.

Full text
Abstract:
We provide statistical measures and additional analyses showing that our original analyses were sound. We use a generalized linear mixed model to account for program-to-program differences with program as a random effect without stratifying with tier and found the GRE-P (Graduate Record Examination physics test) effect is not different from our previous findings, thereby alleviating concern of collider bias. Variance inflation factors for each variable were low, showing that multicollinearity was not a concern. We show that range restriction is not an issue for GRE-P or GRE-V (GRE verbal), and
APA, Harvard, Vancouver, ISO, and other styles
4

Young, Nick. "Eliminating the GRE." Physics Today 73, no. 12 (2020): 11–12. http://dx.doi.org/10.1063/pt.3.4626.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Abraham, Neal, Ronald Edge, Jose D. Garcia, et al. "GRE: Pointers and Another Pan." Physics Today 44, no. 10 (1991): 9–13. http://dx.doi.org/10.1063/1.2810269.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Weissman, Michael B. "The usefulness of GRE scores." Physics Today 73, no. 1 (2020): 10. http://dx.doi.org/10.1063/pt.3.4376.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Small, Alex. "The usefulness of GRE scores." Physics Today 73, no. 1 (2020): 10–11. http://dx.doi.org/10.1063/pt.3.4377.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Orsini, Douglas A. "GRE Should Not Be the Exam of Record." Physics Today 44, no. 1 (1991): 97. http://dx.doi.org/10.1063/1.2809979.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sterkowicz-Przybycień, Katarzyna, and Paula Fundament. "Physical fitness of rhythmic gymnasts depending on age and level of sports achievements." Journal of Kinesiology and Exercise Sciences 30, no. 91 (2020): 29–36. http://dx.doi.org/10.5604/01.3001.0014.8128.

Full text
Abstract:
Aim. The aim of this study was to compare the indices of physical development, frequency and time duration of training, and the results of physical fitness tests depending on age and level of sports achievements among rhythmic gymnasts. Materials and methods. The study comprised 36 rhythmic gymnasts: Gr1 (n=13, 9.0±1.0 years), Gr2 (n=11, 11.36±0.5 years), Gr3 (n=12, 14.27±0.7 years). After standardised sports interview, the groups with lower level of sports achievements (LSL) (n=20) and higher level of sports achievements (HSL) (n=16) were defined. Measurements of body height and mass were per
APA, Harvard, Vancouver, ISO, and other styles
10

De Landro, Martina, Jacopo Ianniello, Maxime Yon, et al. "Fiber Bragg Grating Sensors for Performance Evaluation of Fast Magnetic Resonance Thermometry on Synthetic Phantom." Sensors 20, no. 22 (2020): 6468. http://dx.doi.org/10.3390/s20226468.

Full text
Abstract:
The increasing recognition of minimally invasive thermal treatment of tumors motivate the development of accurate thermometry approaches for guaranteeing the therapeutic efficacy and safety. Magnetic Resonance Thermometry Imaging (MRTI) is nowadays considered the gold-standard in thermometry for tumor thermal therapy, and assessment of its performances is required for clinical applications. This study evaluates the accuracy of fast MRTI on a synthetic phantom, using dense ultra-short Fiber Bragg Grating (FBG) array, as a reference. Fast MRTI is achieved with a multi-slice gradient-echo echo-pl
APA, Harvard, Vancouver, ISO, and other styles
11

Joseph, Abyson, Valakunja Nagaraja, and Ramanathan Natesh. "MSMEG_6292, a Mycobacterium smegmatis RNA polymerase secondary channel-binding protein: purification, crystallization and X-ray diffraction analysis." Acta Crystallographica Section F Structural Biology Communications 74, no. 9 (2018): 543–48. http://dx.doi.org/10.1107/s2053230x18009755.

Full text
Abstract:
The transcriptional activity of RNA polymerase (RNAP) is controlled by a diverse set of regulatory factors. A subset of these regulators modulate the activity of RNAP through its secondary channel. Gre factors reactivate stalled elongation complexes by enhancing the intrinsic cleavage activity of RNAP. In the present study, the protein MSMEG_6292, a Gre-factor homologue from Mycobacterium smegmatis, was expressed heterologously in Escherichia coli and purified using standard chromatographic techniques. The hanging-drop vapour-diffusion crystallization method yielded diffraction-quality crystal
APA, Harvard, Vancouver, ISO, and other styles
12

Avetisyan, R. V. "Influence of Reaction Channel on Isomer Ratio of 184m,gRe Isomeric Pair." Journal of Contemporary Physics (Armenian Academy of Sciences) 54, no. 4 (2019): 338–44. http://dx.doi.org/10.3103/s1068337219040029.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Abrar, F. S. B., M. S. A. Majid, M. J. M. Ridzuan, and A. R. A. Syayuthi. "Impact responses, compressive and burst tests of glass/epoxy (GRE) composite pipes." Journal of Physics: Conference Series 908 (October 2017): 012021. http://dx.doi.org/10.1088/1742-6596/908/1/012021.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Weissman, M. B. "Do GRE scores help predict getting a physics Ph.D.? A comment on a paper by Miller et al." Science Advances 6, no. 23 (2020): eaax3787. http://dx.doi.org/10.1126/sciadv.aax3787.

Full text
Abstract:
A recent paper in Science Advances by Miller et al. concludes that Graduate Record Examinations (GREs) do not help predict whether physics graduate students will get Ph.D.’s. Here, I argue that the presented analyses reflect collider-like stratification bias, variance inflation by collinearity and range restriction, omission of parts of a needed correlation matrix, a peculiar choice of null hypothesis on subsamples, blurring the distinction between failure to reject a null and accepting a null, and an unusual procedure that inflates the confidence intervals in a figure. Release of results of a
APA, Harvard, Vancouver, ISO, and other styles
15

Ajibade, Abiodun O., and Tafida M. Kabir. "Viscous Dissipation Effect on a Steady Generalised Couette Flow of Heat-Generating/Absorbing Fluid in a Vertical Channel." Zeitschrift für Naturforschung A 74, no. 7 (2019): 605–16. http://dx.doi.org/10.1515/zna-2018-0537.

Full text
Abstract:
AbstractThis article investigates the viscous dissipation effect on steady generalised Couette flow of heat-generating/absorbing fluid in a vertical channel. Equations of energy and momentum are obtained and solved using the homotopy perturbation method. The influences of the dimensionless flow parameter have been plotted graphically and discussed for varying values of the controlling parameters. During the course of computation, it is found that fluid temperature and velocity increase with an increase in viscous dissipation and also seen that growing mixed convection parameter Gre leads to a
APA, Harvard, Vancouver, ISO, and other styles
16

Luo, Junhua, Zhirong Zhang, Weisong Tian, et al. "Activation cross sections for 190Os(n,p)190m,gRe, 188Os(n,p)188Re and 190Os(n,n′)190mOs reactions from 13.5 to 14.8MeV." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 267, no. 7 (2009): 1051–55. http://dx.doi.org/10.1016/j.nimb.2009.01.114.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Toraa, Moncef, and Françoise Friemel. "La fatigue des muscles ventilatoires a l'exercice maximal sur deux ergomètres differents." Canadian Journal of Applied Physiology 25, no. 2 (2000): 87–101. http://dx.doi.org/10.1139/h00-006.

Full text
Abstract:
This study examines relationships between physical exercise and fatigue of ventilatory muscles according to training, intensity of exercise, and the ergometer. Twenty-two athletes were submitted to maximal triangular exercise on treadmill (TR) and bicycle (BE). Maximal inspiratory (PImax) and expiratory pressures and a spirometry were measured before and after exercise. In the "high level physical capacity" group (GR1) and "medium level physical capacity" group (GR2). PImax (128.4 + 36.8 cmH2O) and PEmax (175.7 ± 63.8 cmH2O) after exercise on TR decreased significantly (140.0 ± 32.6, p < .0
APA, Harvard, Vancouver, ISO, and other styles
18

Aramideh, Mehdi, Mahmoud Mirzaei, Ghadamali Khodarahmi, and Oğuz Gülseren. "DFT Studies of Graphene-Functionalised Derivatives of Capecitabine." Zeitschrift für Naturforschung A 72, no. 12 (2017): 1131–38. http://dx.doi.org/10.1515/zna-2017-0290.

Full text
Abstract:
AbstractCancer is one of the major problems for so many people around the world; therefore, dedicating efforts to explore efficient therapeutic methodologies is very important for researchers of life sciences. In this case, nanostructures are expected to be carriers of medicinal compounds for targeted drug design and delivery purposes. Within this work, the graphene (Gr)-functionalised derivatives of capecitabine (CAP), as a representative anticancer, have been studied based on density functional theory calculations. Two different sizes of Gr molecular models have been used for the functionali
APA, Harvard, Vancouver, ISO, and other styles
19

Sanchez-Aguero, Victor, Ivan Vidal, Francisco Valera, et al. "Deploying an NFV-Based Experimentation Scenario for 5G Solutions in Underserved Areas." Sensors 21, no. 5 (2021): 1897. http://dx.doi.org/10.3390/s21051897.

Full text
Abstract:
Presently, a significant part of the world population does not have Internet access. The fifth-generation cellular network technology evolution (5G) is focused on reducing latency, increasing the available bandwidth, and enhancing network performance. However, researchers and companies have not invested enough effort into the deployment of the Internet in remote/rural/undeveloped areas for different techno-economic reasons. This article presents the result of a collaboration between Brazil and the European Union, introducing the steps designed to create a fully operational experimentation scen
APA, Harvard, Vancouver, ISO, and other styles
20

Chen, Stephanie Turner, Joel Kowalewski, and Anandasankar Ray. "Prolonged activation of carbon dioxide-sensitive neurons in mosquitoes." Interface Focus 11, no. 2 (2021): 20200043. http://dx.doi.org/10.1098/rsfs.2020.0043.

Full text
Abstract:
Many insects can detect carbon dioxide (CO 2 ) plumes using a conserved receptor made up of members of the gustatory receptor (Gr) family Gr1, Gr2 and Gr3. Mosquitoes are attracted to host animals for blood meals using plumes of CO 2 in the exhaled breath using the receptor expressed in the A neuron of the capitate peg sensilla type on the maxillary palps. The receptor is known to also detect several other classes of odorants, including ones emitted from human skin. Here, we discover that a common skin odorant, butyric acid, can cause a phasic activation followed by an unusually prolonged toni
APA, Harvard, Vancouver, ISO, and other styles
21

Zhang, Bing. "Open questions in GRB physics." Comptes Rendus Physique 12, no. 3 (2011): 206–25. http://dx.doi.org/10.1016/j.crhy.2011.03.004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Hughes, Emily Shannon. "Mismatch between the proposed ability concepts of the Graduate Record Examination and the critical thinking skills of physical therapy applicants suggested by an expert panel in the United States." Journal of Educational Evaluation for Health Professions 16 (August 27, 2019): 24. http://dx.doi.org/10.3352/jeehp.2019.16.24.

Full text
Abstract:
Purpose: The Graduate Record Examination (GRE) is a general examination predictive of success in US-based graduate programs. Used to assess students’ written, mathematical, and critical thinking (CT) skills, the GRE is utilized for admission to approximately 85% of US physical therapist education (PTE) programs. The purpose of this study was to assess whether the CT skills measured by the GRE match those deemed by an expert panel as the most important to assess for PTE program acceptance.Methods: Using a modified E-Delphi approach, a 3-phase survey was distributed over 8 weeks to a panel consi
APA, Harvard, Vancouver, ISO, and other styles
23

Ford, H. Thomas, John R. Puckett, and Larry A. Tucker. "Predictors of Grades Assigned by Graduate Teaching Assistants in Physical Education." Psychological Reports 60, no. 3 (1987): 735–39. http://dx.doi.org/10.2466/pr0.1987.60.3.735.

Full text
Abstract:
To determine possible predictors of grades assigned by graduate teaching assistants in physical education service programs, average grade assignments of 20 assistants for one quarter, collected over 2 yr., were compared with demographic data, teaching experience, GRE scores, total score on the Tennessee Self-concept Scale, and teachers' ratings. Bivariate correlations indicated that the average grade assigned by assistants was related significantly to sex, marital status, and global self-concept; however, age, teaching experience in public schools, total GRE scores, and students' ratings of te
APA, Harvard, Vancouver, ISO, and other styles
24

Fox, D. B., and P. Mészáros. "GRB fireball physics: prompt and early emission." New Journal of Physics 8, no. 9 (2006): 199. http://dx.doi.org/10.1088/1367-2630/8/9/199.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

LI, ZHUO. "ON GRB PHYSICS REVEALED BY FERMI/LAT." International Journal of Modern Physics: Conference Series 23 (January 2013): 223–27. http://dx.doi.org/10.1142/s2010194513011343.

Full text
Abstract:
We discuss the implications of Fermi/LAT observations on several aspects of gamma-ray burst (GRB) physics, including the radiation process, the emission sites, the bulk Lorentz factor, and the pre-shock magnetic field: (1) MeV-range emission favors synchrotron process but the highest energy (> 10 GeV) emission may not be synchrotron origin, more likely inverse Compton origin; (2) GRB should have multi-zone emission region, with MeV emission produced at smaller radii while optical and > 100 MeV emission at larger radii; (3) the bulk Lorentz factor can be a few 100's, much lower than 103,
APA, Harvard, Vancouver, ISO, and other styles
26

van der Horst, A. J., A. Kamble, R. A. M. J. Wijers, et al. "GRB 030329: 3 years of radio afterglow monitoring." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365, no. 1854 (2007): 1241–46. http://dx.doi.org/10.1098/rsta.2006.1993.

Full text
Abstract:
Radio observations of gamma-ray burst (GRB) afterglows are essential for our understanding of the physics of relativistic blast waves, as they enable us to follow the evolution of GRB explosions much longer than the afterglows in any other wave band. We have performed a 3-year monitoring campaign of GRB 030329 with the Westerbork Synthesis Radio Telescopes and the Giant Metrewave Radio Telescope. Our observations, combined with observations at other wavelengths, have allowed us to determine the GRB blast wave physical parameters, such as the total burst energy and the ambient medium density, a
APA, Harvard, Vancouver, ISO, and other styles
27

Krühler, Thomas. "Optical and near-infrared flares in GRB afterglows." Proceedings of the International Astronomical Union 7, S279 (2011): 46–53. http://dx.doi.org/10.1017/s1743921312012677.

Full text
Abstract:
AbstractAmong the diversities in the very early evolution of GRB afterglows are bright optical/near-infrared flares before or superimposed onto an otherwise smoothly decaying afterglow light curve. A lot has been learned about GRBs by using an optical flare or lack thereof as a diagnostic of the emission mechanisms and outflow conditions. In this contribution I will review the observational properties of rising and decaying light-curves in GRB afterglows, discuss their possible physical origins, and highlight in which way they help in understanding GRB and afterglows physics.
APA, Harvard, Vancouver, ISO, and other styles
28

Mazibuko-Mbeje, Sithandiwe, Phiwayinkosi Dludla, Candice Roux, et al. "Aspalathin-Enriched Green Rooibos Extract Reduces Hepatic Insulin Resistance by Modulating PI3K/AKT and AMPK Pathways." International Journal of Molecular Sciences 20, no. 3 (2019): 633. http://dx.doi.org/10.3390/ijms20030633.

Full text
Abstract:
We previously demonstrated that an aspalathin-enriched green rooibos extract (GRE) reversed palmitate-induced insulin resistance in C2C12 skeletal muscle and 3T3-L1 fat cells by modulating key effectors of insulin signalling such as phosphatidylinositol-4,5-bisphosphate 3-kinase/protein kinase B (PI3K/AKT) and AMP-activated protein kinase (AMPK). However, the effect of GRE on hepatic insulin resistance is unknown. The effects of GRE on lipid-induced hepatic insulin resistance using palmitate-exposed C3A liver cells and obese insulin resistant (OBIR) rats were explored. GRE attenuated the palmi
APA, Harvard, Vancouver, ISO, and other styles
29

Utzman, Ralph R., Daniel L. Riddle, and Dianne V. Jewell. "Use of Demographic and Quantitative Admissions Data to Predict Performance on the National Physical Therapy Examination." Physical Therapy 87, no. 9 (2007): 1181–93. http://dx.doi.org/10.2522/ptj.20060222.

Full text
Abstract:
Background and Purpose: The purpose of this study was to determine whether admissions data could be used to estimate physical therapist student risk for failing the National Physical Therapy Examination (NPTE). Subjects: A nationally representative sample of 20 physical therapist education programs provided data on 3,365 students. Methods: Programs provided data regarding demographic characteristics, undergraduate grade point average (uGPA), and quantitative and verbal Graduate Record Examination scores (qGRE, vGRE). The Federation of State Boards of Physical Therapy provided NPTE data. Data w
APA, Harvard, Vancouver, ISO, and other styles
30

Bernardini Papalia, Rosa, and Esteban Fernandez Vazquez. "Entropy-Based Solutions for Ecological Inference Problems: A Composite Estimator." Entropy 22, no. 7 (2020): 781. http://dx.doi.org/10.3390/e22070781.

Full text
Abstract:
Information-based estimation techniques are becoming more popular in the field of Ecological Inference. Within this branch of estimation techniques, two alternative approaches can be pointed out. The first one is the Generalized Maximum Entropy (GME) approach based on a matrix adjustment problem where the only observable information is given by the margins of the target matrix. An alternative approach is based on a distributionally weighted regression (DWR) equation. These two approaches have been studied so far as completely different streams, even when there are clear connections between the
APA, Harvard, Vancouver, ISO, and other styles
31

Shin, Eun-Joo, Ji Hoon Jeong, Bao-Trong Nguyen та ін. "Ginsenoside Re Protects against Serotonergic Behaviors Evoked by 2,5-Dimethoxy-4-iodo-amphetamine in Mice via Inhibition of PKCδ-Mediated Mitochondrial Dysfunction". International Journal of Molecular Sciences 22, № 13 (2021): 7219. http://dx.doi.org/10.3390/ijms22137219.

Full text
Abstract:
It has been recognized that serotonin 2A receptor (5-HT2A) agonist 2,5-dimethoxy-4-iodo-amphetamine (DOI) impairs serotonergic homeostasis. However, the mechanism of DOI-induced serotonergic behaviors remains to be explored. Moreover, little is known about therapeutic interventions against serotonin syndrome, although evidence suggests that ginseng might possess modulating effects on the serotonin system. As ginsenoside Re (GRe) is well-known as a novel antioxidant in the nervous system, we investigated whether GRe modulates 5-HT2A receptor agonist DOI-induced serotonin impairments. We propose
APA, Harvard, Vancouver, ISO, and other styles
32

Maiorano, E., N. Masetti, E. Palazzi, et al. "Physics of the GRB 030328 afterglow and its environment." Astronomy & Astrophysics 455, no. 2 (2006): 423–31. http://dx.doi.org/10.1051/0004-6361:20054728.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Chakraverty, A. P., A. B. Panda, U. K. Mohanty, S. C. Mishra, and B. B. Biswal. "Thermal shock effect on Mechanical and Physical properties of pre-moisture treated GRE composite." IOP Conference Series: Materials Science and Engineering 338 (March 2018): 012047. http://dx.doi.org/10.1088/1757-899x/338/1/012047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Burgess, J. M. "Is spectral width a reliable measure of GRB emission physics?" Astronomy & Astrophysics 629 (September 2019): A69. http://dx.doi.org/10.1051/0004-6361/201935140.

Full text
Abstract:
The spectral width and sharpness of unfolded, observed gamma-ray burst (GRB) spectra have been presented as a new tool to infer physical properties about GRB emission via spectral fitting of empirical models. Following the tradition of the “line-of-death”, the spectral width has been used to rule out synchrotron emission in a majority of GRBs. This claim is investigated via reexamination of previously reported width measures. Then, a sample of peak-flux GRB spectra are fit with an idealized, physical synchrotron model. It is found that many spectra can be adequately fit by this model even when
APA, Harvard, Vancouver, ISO, and other styles
35

Daigne, F. "GRB Prompt Emission and the physics of ultra-relativistic outflows." EAS Publications Series 61 (2013): 185–91. http://dx.doi.org/10.1051/eas/1361028.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Remez, N., A. Dychko, Y. Besarabets, S. Kraychuk, N. Ostapchuk, and L. Yevtieieva. "Impact Modelling of Explosion of Mixture Explosive Charges on the Environment." Latvian Journal of Physics and Technical Sciences 56, no. 3 (2019): 37–49. http://dx.doi.org/10.2478/lpts-2019-0018.

Full text
Abstract:
Abstract The present paper provides the modelling of the explosion of the charges of the traditional (trotyl) and new blended explosive substances: polymix GR1/8 (74 %) + KRUK2 (26 %), compolite GS6, polymix GR4-T10. As a result of the research, it has been established that when using TNT a specific impulse is formed, which is by 40 % more than an explosion of new mixed explosives, and the safe distance from the source of the explosion of such explosives is increased by 25 %–50 %. On the basis of the established dependences of excess pressure, the specific impulse on the type and mass of charg
APA, Harvard, Vancouver, ISO, and other styles
37

Wijers, R. A. M. J., and T. J. Galama. "Physical Parameters of GRB 970508 and GRB 971214 from Their Afterglow Synchrotron Emission." Astrophysical Journal 523, no. 1 (1999): 177–86. http://dx.doi.org/10.1086/307705.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Höflich, P., D. Baade, A. Khokhlov, L. Wang, and J. C. Wheeler. "The Supernova/GRB Connection." International Astronomical Union Colloquium 192 (2005): 403–10. http://dx.doi.org/10.1017/s0252921100009477.

Full text
Abstract:
SummaryWe discuss the possible connection between supernova explosions (SN) and gamma-ray bursters (GRB) from the perspective of our current understanding of SN physics. Core collapse supernovae (SN) are the final stages of stellar evolution in massive stars during which the central region collapses, forms a neutron star (NS) or black hole, and the outer layers are ejected. Recent explosion scenarios assumed that the ejection is due to energy deposition by neutrinos into the envelope but detailed models do not produce powerful explosions. There is new and mounting evidence for an asphericity a
APA, Harvard, Vancouver, ISO, and other styles
39

Zhang, Bing, Enwei Liang, Nayantara Gupta, Bin-Bin Zhang, Francisco Virgili, and Z. G. Dai. "Messages from GRB 060218." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365, no. 1854 (2007): 1257–62. http://dx.doi.org/10.1098/rsta.2006.1999.

Full text
Abstract:
GRB 060218 is a watershed event. Statistically, its detection suggests that there is likely a distinct low-luminosity (LL) population of gamma-ray bursts (GRBs) whose event rate is much higher than that of conventional high-luminosity GRBs. This LL population may give significant contribution to the diffuse neutrino background flux at energies higher than 10 16 eV. The spectral lag of this burst is very long, and roughly follows the luminosity–lag relation of normal GRBs. This, along with the fact that it follows the E p – E iso relation as well, suggests that X-ray flashes (XRFs) are natural
APA, Harvard, Vancouver, ISO, and other styles
40

Wang, Lijuan, Jing Qi, and Lin Wang. "Beliefs of Chinese Physical Educators on Teaching Students With Disabilities in General Physical Education Classes." Adapted Physical Activity Quarterly 32, no. 2 (2015): 137–55. http://dx.doi.org/10.1123/apaq.2014-0140.

Full text
Abstract:
This study examined the behavioral beliefs of physical education (PE) teachers about teaching students with disabilities in their general PE (GPE) classes and to identify the factors that contribute to their beliefs. A total of 195 PE teachers from a region in eastern China were surveyed. Results of the Physical Educators’ Attitudes Toward Teaching Individuals With Disabilities-III survey indicate that although some teachers felt that including students with disabilities in GPE classes provides benefit for them, they were concerned about the practical difficulties of teaching students with dis
APA, Harvard, Vancouver, ISO, and other styles
41

Lolar, Sara, Jamie McQueen, and Sara Maher. "Correlation between physician assistant students’ performance score of history taking and physical exam documentation and scores of Graduate Record Examination, clinical year grade point average, and score of Physician Assistant National Certifying Exam in the United States." Journal of Educational Evaluation for Health Professions 17 (May 27, 2020): 16. http://dx.doi.org/10.3352/jeehp.2020.17.16.

Full text
Abstract:
Purpose: Learning to perform and document patient history taking and physical exam (H&P) entails a major component of the first year academic education of physician assistant (PA) students at Wayne State University, USA. The H&P is summative of multiple aspects of PA education, and students must master communication with patients and other health care providers. The objectives of this study were first, to determine if there was a correlation between scores on the Graduate Record Examination (GRE) component testing and scores on graded H&Ps. The second objective was to identify a co
APA, Harvard, Vancouver, ISO, and other styles
42

Becker, Julia K., Michael Stamatikos, Francis Halzen, and Wolfgang Rhode. "Coincident GRB neutrino flux predictions: Implications for experimental UHE neutrino physics." Astroparticle Physics 25, no. 2 (2006): 118–28. http://dx.doi.org/10.1016/j.astropartphys.2005.12.006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Zhang, Bing, Rui-Jing Lu, En-Wei Liang, and Xue-Feng Wu. "GRB 110721A: PHOTOSPHERE “DEATH LINE” AND THE PHYSICAL ORIGIN OF THE GRB BAND FUNCTION." Astrophysical Journal 758, no. 2 (2012): L34. http://dx.doi.org/10.1088/2041-8205/758/2/l34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Al-Samhan, Meshal, A. Yussuf, and S. Jacob. "A Comparison of the Polymer Matrix Behavior and Mechanical Properties of the Glass Reinforced Plastics and Glass Reinforced Epoxy Pipes under Different Oil Field Chemicals." Key Engineering Materials 748 (August 2017): 55–61. http://dx.doi.org/10.4028/www.scientific.net/kem.748.55.

Full text
Abstract:
Fiber reinforced composite material is used widely in oil fields for its high specific strength and resistance to corrosion. Glass reinforced plastics (GRP) and Glass reinforced epoxy (GRE) pipe samples were investigated under oil field conditions. The samples were subjected to ultraviolet radiation, moisture and elevated temperature using accelerating weathering machine and then aged in different environments encountered in oil well streams and characterized by using Scanning Electron Microscopy (SEM). The surface morphology was analyzed and the images produced from wet crude and effluent wat
APA, Harvard, Vancouver, ISO, and other styles
45

Gholami, Asghar, Denis Molin, and Pierre Sillard. "Physical Modeling of 10 GbE Optical Communication Systems." Journal of Lightwave Technology 29, no. 1 (2011): 115–23. http://dx.doi.org/10.1109/jlt.2010.2095454.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Roman, Gretchen, and Matthew Paul Buman. "Preadmission predictors of graduation success from a physical therapy education program in the United States." Journal of Educational Evaluation for Health Professions 16 (February 26, 2019): 5. http://dx.doi.org/10.3352/jeehp.2019.16.5.

Full text
Abstract:
Purpose: The field of physical therapy education is seeking an evidence-based approach for admitting qualified applicants, as previous research has assessed various outcomes, impeding practical application. This study was conducted to identify preadmission criteria predictive of graduation success. Methods: Data from the 2013–2016 graduating cohorts (n=149) were collected. Predictors included verbal Graduate Record Examination rank percentile (VGRE%), quantitative GRE rank percentile, and analytical GRE rank percentile, the admissions interview, precumulative science grade point average (SGPA)
APA, Harvard, Vancouver, ISO, and other styles
47

Basak, Rupal, and A. R. Rao. "GRB as luminosity indicator." Proceedings of the International Astronomical Union 9, S296 (2013): 356–57. http://dx.doi.org/10.1017/s1743921313009800.

Full text
Abstract:
AbstractGamma Ray Bursts (GRBs) are found at much higher redshifts (z > 6) than Supernova Ia (z ~ 1), and hence, they can be used to probe very primitive universe. However, radiation mechanism of GRB remains a puzzle, unlike Supernova Ia. Through comprehensive description, both empirical and physical, we shall discuss the most likely way to use the constituent pulses of a GRB to find the radiation mechanism as well as using the pulses as luminosity indicators.
APA, Harvard, Vancouver, ISO, and other styles
48

Witwit, M. R. M. "Eigenenergies of the r2+ lambda r2/(1+gr2) and 1/2(r2)-or+gr4/(1+g alpha r2) potentials obtained by the hypervirial method." Journal of Physics A: Mathematical and General 24, no. 22 (1991): 5291–97. http://dx.doi.org/10.1088/0305-4470/24/22/013.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Fargion, Daniele, and Pietro Oliva. "Solving the missing GRB neutrino and GRB-SN puzzles." Nuclear and Particle Physics Proceedings 297-299 (April 2018): 249–58. http://dx.doi.org/10.1016/j.nuclphysbps.2018.07.035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Bégué, D., J. Michael Burgess, and J. Greiner. "The Peculiar Physics of GRB 170817A and Their Implications for Short GRBs." Astrophysical Journal 851, no. 1 (2017): L19. http://dx.doi.org/10.3847/2041-8213/aa9d85.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!