Results 61 to 70 of about 5,142,656 (331)

Noise Discrimination Factor and Noise Discrimination Index: Concepts for Discussion [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1951
The importance of intelligible communication in noise has focused attention on noise-canceling microphones, and one of the attendant problems is that of assigning valid figures of merit to such microphones for the purpose of comparing their noise-canceling properties.
openaire   +1 more source

Long-term Follow-up of Longitudinal Melanonychia in Children and Adolescents Using an Objective Discrimination Index.

open access: yesActa Dermato-Venereologica, 2016
Nail apparatus melanoma is extremely rare in children, regardless of race (1–5). Almost all cases of longitudinal melanonychia (LM) seen in children are benign, with the majority being due to melanocytic naevi affecting the nail matrix or nail bed ...
H. Koga   +6 more
semanticscholar   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

The relationship between classical item characteristics and item response time on computer-based testing [PDF]

open access: yesKorean Journal of Medical Education, 2019
Purpose This study investigated the relationship between the item response time (iRT) and classic item analysis indicators obtained from computer-based test (CBT) results and deduce students’ problem-solving behavior using the relationship.
Yoo-mi Chae, Seok Gun Park, Ilyong Park
doaj   +1 more source

Hierarchical Factor Analysis of the Quick Discrimination Index [PDF]

open access: yes, 2002
Prior factor analytic studies of the Quick Discrimination Index (QDI) have used principal components factor analysis to develop and validate a three-factor structure with a racially heterogeneous sample. In this investigation, Study 1 explored the factor
Burkard, Alan W.   +2 more
core   +1 more source

Evaluation of Foreign Languages Teaching in LMS Conditions by Facility and Discrimination index

open access: yesTEM Journal, 2016
This article is focused on presentation of foreign languages teaching evaluation in LMS conditions by facility and discrimination index. The structure and creation of course for foreign language teaching with English language orientationis presented. The
Jozef Husar, D. Dupláková
semanticscholar   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Analyzing the quality of multiple-choice questions in microbiology for second-year MBBS students

open access: yesMGM Journal of Medical Sciences
Background and Objective: According to the 2023 Graduate Medical Education Regulations by the National Medical Commission for competency-based medical education in the MBBS curriculum, 20% of assessment questions are now multiple-choice questions (MCQs ...
Gurjeet Singh   +2 more
doaj   +1 more source

ITEM ANALYSIS AND PEER-REVIEW EVALUATION OF SPECIFIC HEALTH PROBLEMS AND APPLIED RESEARCH BLOCK EXAMINATION

open access: yesJurnal Pendidikan Kedokteran Indonesia, 2020
Background: Assessment and evaluation for students is an essential component of teaching and learning process. Item analysis is the technique of collecting, summarizing, and using students’ response data to assess the quality of the Multiple Choice ...
Novi Maulina, Rima Novirianthy
doaj   +1 more source

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