Results 51 to 60 of about 26,973 (242)

On Packing Connectors

open access: yesJournal of Combinatorial Theory, Series B, 1998
Let \(G=(V,E)\) be an undirected graph and \(\{S,T\}\) a partition of \(V\). Then a set of edges \(F\subseteq E\) such that every component of the subgraph \((V,F)\) intersects both \(S\) and \(T\), is called an \(S\)--\(T\) connector. In general a subpartition \(W\) of a set \(X\) is a collection of pairwise disjoint nonempty subsets of \(X\); and if--
Keijsper, J.C.M., Schrijver, A.
openaire   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Behavior and strength of welded stud shear connectors in composite beam

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
In this paper the behaviour of stud shear connectors in composite structures is analysed. The composite section is formed by steel profiles connected to solid concrete slabs.
Jorge Douglas Bonilla Rocha   +3 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Partial Connector Colouring [PDF]

open access: yes, 2012
Connector colouring provided an intuitive semantics of Reo connectors which lead to effective implementation techniques, first based on computing colouring tables directly, and later on encodings of colouring into constraints. One weakness of the framework is that it operates globally, giving a colouring to all primitives of the connector in lock-step,
Clarke D., Proenca J.
openaire   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS 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

Effects of Input Enhancement Cues on EFL Learners' Intake of English Grammar: The Case of Connectors [PDF]

open access: yesResearch in English Language Pedagogy, 2018
The present study investigated the effect of two types of attention drawing techniques (i.e., choice and underlining) on the learners' intake of English connectors. The design of the study was a quasi-experimental research.
Samira Kian, Bahman Gorjian
doaj  

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Collaboration with community connectors to improve primary care access for hardly reached people: a case comparison of rural Ireland and Australia

open access: yesBMC Health Services Research, 2020
Background This study presents a way for health services to improve service access for hardly reached people through an exploration of how staff can find and collaborate with citizens (referred to as connectors) who span socio-cultural boundaries in ...
Carolyn Wallace   +3 more
doaj   +1 more source

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