oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 4 )

2018 ( 3 )

2016 ( 3 )

2015 ( 28 )

Custom range...

Search Results: 1 - 10 of 475 matches for " Arjun "
All listed articles are free for downloading (OA Articles)
Page 1 /475
Display every page Item
The Method of Finite Difference Regression  [PDF]
Arjun Banerjee
Open Journal of Statistics (OJS) , 2018, DOI: 10.4236/ojs.2018.81005
Abstract: In this paper I present a novel polynomial regression method called Finite Difference Regression for a uniformly sampled sequence of noisy data points that determines the order of the best fitting polynomial and provides estimates of its coefficients. Unlike classical least-squares polynomial regression methods in the case where the order of the best fitting polynomial is unknown and must be determined from the R2 value of the fit, I show how the t-test from statistics can be combined with the method of finite differences to yield a more sensitive and objective measure of the order of the best fitting polynomial. Furthermore, it is shown how these finite differences used in the determination of the order, can be reemployed to produce excellent estimates of the coefficients of the best fitting polynomial. I show that not only are these coefficients unbiased and consistent, but also that the asymptotic properties of the fit get better with increasing degrees of the fitting polynomial.
Landslide Hazard Mapping of Nagadhunga-Naubise Section of the Tribhuvan Highway in Nepal with GIS Application  [PDF]
Arjun Raj Pandey, Farzad Shahbodaghlou
Journal of Geographic Information System (JGIS) , 2014, DOI: 10.4236/jgis.2014.66059
Abstract: The aim of this project was to prepare and study a hazard map of Nagadhunga-Naubise section of the Tribhuvan highway. This section lies in the Middle Mountain region of Nepal. For the preparation of the hazard map of the corridor three steps, initial study, field investigation, and data analysis and presentation were carried out. In the initial study, the collection of available data and review of the literature were done. The base map was then prepared from the topographical map. In the field investigation step, all information and maps prepared earlier in the initial study were verified by field check. In the final step, prepared and verified data were then analyzed for the hazard mapping. Topography (gradient, slope shape and slope aspect), geology, drainage and land-use were considered to be the major influencing factors in the slope stability. Pre-assigned hazard rating method was used for hazard mapping of the study area. The area was divided into equal facets. Then ratings of responsible factors to the hazard were assigned to each facet and overlaid based upon a predetermined rating scheme. Total estimated hazard was the sum of these ratings for each overlay. Hazard map was prepared by using three categories as low hazard, medium hazard and high hazard. The Geographic Information System (GIS) was the main tool for the data input, analysis, and preparing of the final hazard map. The hazard map showed the areas of different hazard potential classes of; “low” with 32% portion, “Medium” with 51%, and “high” with 17% portion.
Student performance and their perception of a patient-oriented problem-solving approach with audiovisual aids in teaching pathology: a comparison with traditional lectures
Arjun Singh
Advances in Medical Education and Practice , 2011, DOI: http://dx.doi.org/10.2147/AMEP.S15251
Abstract: udent performance and their perception of a patient-oriented problem-solving approach with audiovisual aids in teaching pathology: a comparison with traditional lectures Original Research (3316) Total Article Views Authors: Arjun Singh Published Date December 2010 Volume 2011:2 Pages 9 - 15 DOI: http://dx.doi.org/10.2147/AMEP.S15251 Arjun Singh Department of Pathology, Sri Venkateshwara Medical College Hospital and Research Centre, Pondicherry, India Purpose: We use different methods to train our undergraduates. The patient-oriented problem-solving (POPS) system is an innovative teaching–learning method that imparts knowledge, enhances intrinsic motivation, promotes self learning, encourages clinical reasoning, and develops long-lasting memory. The aim of this study was to develop POPS in teaching pathology, assess its effectiveness, and assess students’ preference for POPS over didactic lectures. Method: One hundred fifty second-year MBBS students were divided into two groups: A and B. Group A was taught by POPS while group B was taught by traditional lectures. Pre- and post-test numerical scores of both groups were evaluated and compared. Students then completed a self-structured feedback questionnaire for analysis. Results: The mean (SD) difference in pre- and post-test scores of groups A and B was 15.98 (3.18) and 7.79 (2.52), respectively. The significance of the difference between scores of group A and group B teaching methods was 16.62 (P < 0.0001), as determined by the z-test. Improvement in post-test performance of group A was significantly greater than of group B, demonstrating the effectiveness of POPS. Students responded that POPS facilitates self-learning, helps in understanding topics, creates interest, and is a scientific approach to teaching. Feedback response on POPS was strong in 57.52% of students, moderate in 35.67%, and negative in only 6.81%, showing that 93.19% students favored POPS over simple lectures. Conclusion: It is not feasible to enforce the PBL method of teaching throughout the entire curriculum; However, POPS can be incorporated along with audiovisual aids to break the monotony of dialectic lectures and as alternative to PBL.
Large transient states in quantum field theory
Berera, Arjun
High Energy Physics - Phenomenology , 2007, DOI: 10.1016/j.nuclphysa.2007.05.009
Abstract: A study is made of the scattering of two large composite projectiles, such as heavy ions, which are initially prepared in a pure quantum state. It is shown that the quantum field theoretic evolution equation for this system, under certain conditions, goes over in form to the master equation of classical statistical mechanics. Thus, the statistical mechanical description of heavy ion collision is viewed as an implied outcome of the Correspondence Principle, which states that in the limit of large quantum number, quantum dynamics goes over to classical dynamics. This hypothesis is explored within the master equation transcription with particular focus on the quark-gluon formation scenario.
Viability of detection by AMS of sudden features due to dark matter annihilation to positrons and electrons
Sharma, Arjun
High Energy Physics - Phenomenology , 2013,
Abstract: The Fermi experiment has measured the cosmic ray electron+positron spectrum and positron fraction [$\Phi_{e^+}/(\Phi_{e^+ + e^-})]$, and PAMELA has measured the positron fraction with better precision. While the majority of cosmic ray electrons and positrons are of astrophysical origin, there may also be a contribution from dark matter annihilation in the galactic halo. The upcoming results of the AMS experiment will show measurements of these quantities with far greater precision. One dark matter annihilation scenario is where two dark matter particles annihilate directly to $e^+$ and $e^-$ final states. In this article, we calculate the signature "bumps" in these measurements assuming a given density profile (NFW profile). If the dark matter annihilates to electrons and positrons with a cross section $\sigma v \sim\, 10^{-26}$ cm$^3$/s or greater, this feature may be discernible by AMS. However, we demonstrate that such a prominent spectral feature is already ruled out by the relative smoothness of the positron + electron cosmic ray spectrum as measured by Fermi. Hence we conclude that such a feature is undetectable unless the mass is less than $\sim$40 GeV.
The warm inflationary universe
Berera, Arjun
High Energy Physics - Phenomenology , 2008, DOI: 10.1080/00107510500392030
Abstract: In the past decade, the importance of dissipation and fluctuation to inflationary dynamics has been realized and has led to a new picture of inflation called warm inflation. Although these phenomena are common to condensed matter systems, for inflation models their importance has only recently started to be appreciated. The article describes the motivation for these phenomenon during inflation and then examines their origins from first principles quantum field theory treatments of inflation models. Cosmology today is a data intensive field and this is driving theory to greater precision and predictability. This opens the possibility to consider tests for detecting observational signatures of dissipative processes, which will be discussed. In addition it will be discussed how particle physics and cosmology are now working in tandem to push the boundaries of our knowledge about fundamental physics.
Student performance and their perception of a patient-oriented problem-solving approach with audiovisual aids in teaching pathology: a comparison with traditional lectures
Arjun Singh
Advances in Medical Education and Practice , 2010,
Abstract: Arjun SinghDepartment of Pathology, Sri Venkateshwara Medical College Hospital and Research Centre, Pondicherry, IndiaPurpose: We use different methods to train our undergraduates. The patient-oriented problem-solving (POPS) system is an innovative teaching–learning method that imparts knowledge, enhances intrinsic motivation, promotes self learning, encourages clinical reasoning, and develops long-lasting memory. The aim of this study was to develop POPS in teaching pathology, assess its effectiveness, and assess students’ preference for POPS over didactic lectures.Method: One hundred fifty second-year MBBS students were divided into two groups: A and B. Group A was taught by POPS while group B was taught by traditional lectures. Pre- and post-test numerical scores of both groups were evaluated and compared. Students then completed a self-structured feedback questionnaire for analysis.Results: The mean (SD) difference in pre- and post-test scores of groups A and B was 15.98 (3.18) and 7.79 (2.52), respectively. The significance of the difference between scores of group A and group B teaching methods was 16.62 (P < 0.0001), as determined by the z-test. Improvement in post-test performance of group A was significantly greater than of group B, demonstrating the effectiveness of POPS. Students responded that POPS facilitates self-learning, helps in understanding topics, creates interest, and is a scientific approach to teaching. Feedback response on POPS was strong in 57.52% of students, moderate in 35.67%, and negative in only 6.81%, showing that 93.19% students favored POPS over simple lectures.Conclusion: It is not feasible to enforce the PBL method of teaching throughout the entire curriculum; However, POPS can be incorporated along with audiovisual aids to break the monotony of dialectic lectures and as alternative to PBL.Keywords: medical education, problem-solving exercise, problem-based learning
Ethics for medical educators: An overview and fallacies
Singh Arjun
Indian Journal of Psychological Medicine , 2010,
Abstract: Ethics is the rule of right conduct or practice in a profession. The basic principles of ethics are beneficence, justice and autonomy or individual freedom. There is very minor demarcation between ethics and the law. The ethics is promulgated by the professional bodies. All are expected to guide the medical professional in their practice. Medical educators have dual ethical obligations: firstly, to the society at large which expects us to produce competent health professionals, and secondly, to the students under our care. The students observe and copy what their teacher does and his/her role modelling can be a gateway to a student′s character building. Due to rapid increase in the number of medical colleges, privatization, and capitalism, ethical issue has become much more relevant and needs to discuss in detail. The present paper discusses the ethics for medical educators in detail with, basic principles, common breaches of ethics and fallacies due to wrong application of ethical principles, and the approach to ethics and methods by which we can prevent and avoid breach of ethics.
Las finanzas públicas en el Arthashastra de Kautilya
Arjun Das
Revista Derecho del Estado , 2004,
Abstract:
Muerte segura: Violencia étnica en la Era de la Globalización.
Arjun APPADURAI
Relaciones Internacionales , 2006,
Abstract: -
Page 1 /475
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.