Results 81 to 90 of about 1,501,299 (295)

Observational constraints on viable f(R) parametrizations with geometrical and dynamical probes [PDF]

open access: yes, 2013
We demonstrate that a wide range of viable f(R) parameterizations (including the Hu & Sawicki and the Starobinsky models) can be expressed as perturbations deviating from the LCDM Lagrangian.
Basilakos, Spyros   +2 more
core   +2 more sources

Navigating new norms: a systematic review of factors for the development of effective digital tools in higher education

open access: yesFEBS Open Bio, EarlyView.
What factors make for an effective digital learning tool in Higher Education? This systematic review identifies elements of a digital tool that published examples reveal to be features of an engaging and impactful digital tool. A systematic literature search yielded 25 research papers for analysis.
Akmal Arzeman   +4 more
wiley   +1 more source

Analysis of medical and dentistry basic sciences examinations: A case study

open access: yesPayesh, 2020
Objective (s): Multiple choice questions are the central core of the evaluation of medical students. The purpose of this study was to analyze medical and dentistry basic sciences examinations in Ahvaz Jundishapur University of Medical Sciences in 2015 ...
Nasrin Khajeali   +2 more
doaj  

Comparison between Students’ Perception toward an examination and item analysis, reliability and validity of the examination

open access: yesSudan Journal of Medical Sciences, 2020
Introduction: While student's perception of an exam is a reflection of their feelings toward the exmination items, item analysis is a statistical analysis of their responses to examination items.
Assad Ali Rezigalla   +3 more
doaj   +1 more source

THE COMPETITITVITY FACTORS [PDF]

open access: yes
To evaluate a nation’s competitivity, we have to take into consideration a large number of variables. The difficulty does not exist in the number of factors, but in how you treat them, considering that some of them have an effectively qualitative ...
Dragomir Laurentiu Constantin
core  

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

open access: yesFEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth   +6 more
wiley   +1 more source

Biodiversity Quality: a paradigm for biodiversity [PDF]

open access: yes, 2009
The internationally accepted definition of biodiversity creates difficulty in measuring difference and change. The authors suggest that well-sampled data can be used to generate a range of numerical indices reflecting species group characteristics ...
Alan Feest   +2 more
core   +1 more source

Time operator in QFT with Virasoro constraints

open access: yes, 2012
Time operator is studied on the basis of field quantization, where the difficulty stemming from Pauli's theorem is circumvented by borrowing ideas from the covariant quantization of the bosonic string, i.e., one can remove the negative energy states by ...
Aharonov   +42 more
core   +1 more source

Determining Course Outcomes Achievement Through Examination Difficulty Index Measurement

open access: yesProcedia - Social and Behavioral Sciences, 2012
AbstractCourse achievement evaluation is very important because it will determine students’ level of understanding with regards to the course. Each course offered at UniversitiKebangsaan Malaysia has its own pre-determined Learning Outcomes (LOs) which were published to students at the start of the semester.
Zainudin, Suhaila   +3 more
openaire   +1 more source

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