Results 81 to 90 of about 1,051,066 (255)

Reassessing weights in large-scale assessments and multilevel models

open access: yesLarge-scale Assessments in Education
When analyzing large-scale assessments (LSAs) that use complex sampling designs, it is important to account for probability sampling using weights. However, the use of these weights in multilevel models has been widely debated, particularly regarding ...
Umut Atasever   +2 more
doaj   +1 more source

Reading achievement recommendations [PDF]

open access: yes, 2012
The South Carolina Reading Achievement Systemic Initiative was created by Proviso 1A.46 in the 2011-2012 Appropriations Act to provide recommendations to the General Assembly on how to address the pervasive issue of illiteracy among the youth in the ...
South Carolina Reading Achievement Systemic Initiative
core  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Student achievement and self-confidence in mathematics and science: evidence from TIMSS 2023

open access: yesLarge-scale Assessments in Education
This paper examines whether underachieving students systematically overestimate their abilities and explores how confidence patterns vary across different contexts.
David Rutkowski   +2 more
doaj   +1 more source

Rethinking motivation goals for adolescents: Beyond achievement goals [PDF]

open access: yes, 2012
For the past two decades the prime focus of motivation research in adolescence has been concerned with achievement goals, namely mastery and performance goals.
Mansfield, C.
core  

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Reliable and Cost-Effective QuEChERS–UHPLC–MS/MS Method for the Simultaneous Analysis of Ten Mycotoxins in Dendrobium Officinale: A Study on Food-Medicine Homology Quality Control

open access: yesJournal of Analytical Methods in Chemistry
This study developed a method for simultaneously detecting 10 mycotoxins in Dendrobium officinale using the QuEChERS technique combined with ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS). The method was optimized for
Zejun Wang   +6 more
doaj   +1 more source

Unraveling HIV-1 spread in Southwest China: a phylogenetic and molecular network approach

open access: yesFrontiers in Microbiology
Guangxi is one of the regions most affected by HIV-1 in China, yet the fine-scale transmission dynamics and molecular epidemiology remain incompletely characterized.
Xianwu Pang   +7 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

‘We were there too’: There is much to learn from embedding auto/biography in the knowing and doing of prison research

open access: yesMethodological Innovations, 2017
Within the social sciences, there is a wealth of literature that examines the challenges and ethical dilemmas encountered by researchers in conceptualising, conducting and understanding their research.
Geraldine Brown, Elizabeth Bos
doaj   +1 more source

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