Results 91 to 100 of about 1,114,312 (344)

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Studi Tentang Dampak Dari Multidimensionalitas Butir Soal Terhadap Estimasi True Skor Dengan Pendekatan Model Bifaktor

Jurnal Pengukuran Psikologi dan Pendidikan Indonesia, 2019
Penelitian ini merupakan penelitian simulasi dimana yang menjadi fokus dalam penelitian ini adalah banyaknya faktor, item dan responden dengan replikasi 50 kali.
Nursakinah Oktaviana Sasmita
doaj   +1 more source

Untitled Item• Risk of bias assessment of study 2 (Hess et al)

, 2021
Sirish Raj Pandey, Saroj Adhikari Yadav, Swotantra Gautam, Kalpana Giri, Anirudra Devkota, Shipra Shrestha, Shreya Bhandari, Bibek Adhikari, Shila Neupane, Jenish Bhandari   +9 more
openalex   +1 more source

Bracketing effects in categorized survey questions and the measurement of economic quantities [PDF]

In households surveys, quantities of interest are frequently elicited using categorized (range-card) formats rather than open-ended questions. One advantage of this format is that is typically reduces item non-response.
Winter, Joachim
core  

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Brief Report: An Evaluation of Item Bias on the Functional Activities Questionnaire. [PDF]

Arch Clin Neuropsychol, 2023
González DA, Clark MJ, Gonzales MM, Benge J.   +3 more
europepmc   +1 more source

Respondent incentives in a multi-mode panel survey: Cumulative effects on nonresponse and bias [PDF]

, 2007
Respondent incentives are increasingly used as a measure of combating falling response rates and resulting risks of nonresponse bias. Nonresponse in panel surveys is particularly problematic, since even low wave-on-wave nonresponse rates can lead to ...
Jäckle, A, Lynn, P
core   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

Molecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan, Irina Primac, Emre Etlioglu, Laurens Debruyne, Ann Janssen, Magy Sallam, Kevin Tabury, Roel Quintens, Wiebren Tjalma, Mohammed Abderrafi Benotmane   +9 more
wiley   +1 more source

Linking Error Estimation in Fixed Item Parameter Calibration: Theory and Application in Large-Scale Assessment Studies

Foundations
In fixed item parameter calibration (FIPC), an item response theory (IRT) model is estimated with item parameters fixed at reference values to estimate the distribution parameters within a specific group.
Alexander Robitzsch
doaj   +1 more source

Exploring reporting quality of systematic reviews and Meta-analyses on nursing interventions in patients with Alzheimer’s disease before and after PRISMA introduction

BMC Medical Research Methodology, 2018
Background Systematic reviews (SRs) and meta-analyses (MAs) are distillation of current best available evidence, but are potentially prone to bias. The bias of SRs and MAs comes from sampling bias, selection bias and within study bias.
Xiao Sun, Xiaobin Zhou, Yan Yu, Haihua Liu   +3 more
doaj   +1 more source