Results 61 to 70 of about 1,610,463 (321)

Local Bootstrap Percolation [PDF]

open access: yesarXiv, 2008
We study a variant of bootstrap percolation in which growth is restricted to a single active cluster. Initially there is a single active site at the origin, while other sites of Z^2 are independently occupied with small probability p, otherwise empty. Subsequently, an empty site becomes active by contact with 2 or more active neighbors, and an occupied
arxiv  

Wafer-level Variation Modeling for Multi-site RF IC Testing via Hierarchical Gaussian Process [PDF]

open access: yesarXiv, 2021
Wafer-level performance prediction has been attracting attention to reduce measurement costs without compromising test quality in production tests. Although several efficient methods have been proposed, the site-to-site variation, which is often observed in multi-site testing for radio frequency circuits, has not yet been sufficiently addressed.
arxiv  

Dynamic Active Sites in Electrocatalysis

open access: yesAngewandte Chemie
AbstractIn‐depth understanding of the real‐time behaviors of active sites during electrocatalysis is essential for the advancement of sustainable energy conversion. Recently, the concept of dynamic active sites has been recognized as a potent approach for creating self‐adaptive electrocatalysts that can address a variety of electrocatalytic reactions ...
Minghui, Ning   +9 more
openaire   +2 more sources

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

open access: yesFEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva   +1 more
wiley   +1 more source

A modified version of frozen percolation on the binary tree [PDF]

open access: yesarXiv, 2005
We consider the following, intuitively described process: at time zero, all sites of a binary tree are at rest. Each site becomes activated at a random uniform [0,1] time, independent of the other sites. As soon as a site is in an infinite cluster of activated sites, this cluster of activated sites freezes.
arxiv  

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Identifying Active Sites of the Water-Gas Shift Reaction over Titania Supported Platinum Catalysts under Uncertainty [PDF]

open access: yesarXiv, 2017
A comprehensive uncertainty quantification framework has been developed for integrating computational and experimental kinetic data and to identify active sites and reaction mechanisms in catalysis. Three hypotheses regarding the active site for the water-gas shift reaction on Pt/TiO2 catalysts are tested - Pt(111), an edge interface site, and a corner
arxiv  

Households as a Site of Entrepreneurial Activity [PDF]

open access: yesFoundations and Trends® in Entrepreneurship, 2017
Entrepreneurial households have a central role in determining entrepreneurial choices, actions and outcomes. In this monograph we focus on the role of households in new venture creation and growth, arguing that our understanding of individual actions and firm level decisions becomes clearer if they are considered from the perspective of the household ...
Carter, Sara   +3 more
openaire   +3 more sources

Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms

open access: yesFEBS Letters, EarlyView.
Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze   +3 more
wiley   +1 more source

Understanding the role of active site residues in CotB2 catalysis using a cluster model

open access: yesBeilstein Journal of Organic Chemistry, 2020
Terpene cyclases are responsible for the initial cyclization cascade in the multistep synthesis of a large number of terpenes. CotB2 is a diterpene cyclase from Streptomyces melanosporofaciens, which catalyzes the formation of cycloocta-9-en-7-ol, a ...
Keren Raz   +4 more
doaj   +1 more source

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