Results 51 to 60 of about 911,723 (304)

On the application of the Theory of Critical Distances for prediction of fracture in fibre composites [PDF]

open access: yesFracture and Structural Integrity, 2010
This paper is concerned with the fracture of composite materials containing stress concentration features such as notches and holes. In particular, it addresses the question of the use of the Theory of Critical Distances (TCD) – a method which is widely ...
David Taylor
doaj  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

CRITICAL THINKING IN ENGLISH TEACHER TRAINING: COI MODEL AND FREIRE'S CRITICAL PEDAGOGY [PDF]

open access: yes, 2023
This case study explored the teaching and learning of critical thinking skills within a preservice English as a Foreign Language (EFL) teacher training program at a public distance university in Costa Rica. A theoretical framework with the interaction of
Diaz-Ducca, Jenaro A.
core  

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

The sociology of diagnosis: Critical distance

open access: yesSociology of Health & Illness
No description ...
Bell, AV   +3 more
openaire   +2 more sources

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

A study to determine the value and effectiveness of online distance learning to technical and community college students [PDF]

open access: yes, 2002
Plan BOver the last decade or so, institutions of higher learning and the public in general have become increasingly interested in distance education. Whereas, in the past, education has traditionally meant bringing students to sources of knowledge, the ...
Martinek, Diane K.
core  

Educating Aviators: Challenges for Distance Learning in Aviation Tertiary Education

open access: yes, 2015
This chapter provides a critical examination of the evolution of distance education in tertiary aviation programs. By reviewing the literature and studies associated with Professional Pilot training, the chapter explores the issues affecting the ...
Tarryn Kille   +6 more
core   +1 more source

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