Results 71 to 80 of about 11,938,074 (248)

Avoidance or phrasal verbs: The case of chinese learners of English [PDF]

open access: yes, 2002
This study investigates the avoidance of English phrasal verbs (PVs) by Chinese learners in relation to their proficiency levels (advanced, intermediate), PV types (figurative, literal), and test types (multiplechoice, translation, recall).
Fukuya, Yoshinori, Liao, Yan D.
core  

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Non-native gobies facilitate the transmission of Bucephalus polymorphus (Trematoda)

open access: yesParasites & Vectors, 2015
Background Introduced species can modify local host-parasite dynamics by amplifying parasite infection which can ‘spill-back’ to the native fauna, whether they are competent hosts for local parasites, or by acting as parasite sinks with ‘dilution’ of ...
Markéta Ondračková   +5 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Intermediate Fluid Mechanics [PDF]

open access: yes, 2020
I. IntroductionII. Mathematical ToolsIII. Bernoulli EquationIV. Potential Flow BasicsV. Potential FlowsVI. The Panel Method: An IntroductionVII. Introduction to Viscous FlowsVIII. Boundary Layer FlowsIX.
Liburdy, James
core   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Evaluation of Spasticity Using the Ashworth Scale with Intermediate Scores (ASIS)

open access: yesIranian Rehabilitation Journal, 2010
Objectives: The main purpose of this research was to study and contribute to an accurate test of spastic limb. The intra, inter rater reliability of the test was examined.
Mohammad Amouzadeh Khalili   +1 more
doaj  

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Unearthing fresh copper of Tell el-Retaba: from the Second to the Third Intermediate Period

open access: yes
This article reports on the archaeometallurgical investigation of thirty-one metalworking and artefact samples from the Egyptian site Tell el-Retaba in Wadi Tumilat.
Rys-Jarmuzek A   +8 more
core   +2 more sources

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