Results 61 to 70 of about 415,792 (296)
FEBS 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
Cluster sampling with remote sensing data
, 2022 S.202-206 : Ill., Lit.Cluster sampling is widely used in sampling procedures with remote sensing data. Compared to the precision of the random sampling with the sampling unit pixel, cluster samples are much less precise.
Smiatek, G.
core
Acta Amazonica, 2012 Realizou-se um estudo com unidades amostrais conglomeradas de estrutura cruzada usando banco de dados de inventário florestal 100% de uma Unidade de produção Anual (UPA-08), localizada na fazenda Martins no alto Pacajá, Município de Portel, Estado do ...
Oberdan Müller M. das Flores +5 more
doaj +1 more source
Asymptotic Theory for Clustered Samples [PDF]
SSRN Electronic Journal, 2017 We provide a complete asymptotic distribution theory for clustered data with a large number of independent groups, generalizing the classic laws of large numbers, uniform laws, central limit theory, and clustered covariance matrix estimation. Our theory allows for clustered observations with heterogeneous and unbounded cluster sizes.
Lee, Seojeong, Hansen, Bruce
openaire +5 more sources
FEBS Letters, EarlyView.Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley +1 more source
Cluster Size and Aggregated Level 2 Variables in Multilevel Models. A Cautionary Note
Methoden, Daten, Analysen, 2016 This paper explores the consequences of small cluster size for parameter estimation in multilevel models. In particular, the interest lies in parameter estimates (regression weights) in linear multilevel models of level 2 variables that are functions of
Reinhard Schunck
doaj +1 more source
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS 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
Systematic Sampling and Cluster Sampling of Packet Delays [Elektronisk resurs]
, 2006 Based on experiences of a traffic flow performance meter this papersuggests and evaluates cluster sampling and systematic sampling as methods toestimate average packet delays.
Lindh, Thomas,
core
Journal of Forest Science, 2012 Based on two species of Coastal Mangrove in Hainan of China, Sonneratia Apetala Buch-Ham and Sonneratia caseoli, we estimated the density of the two species to evaluate the efficiency of adaptive cluster sampling (ACS), simple random sampling (SRS) and ...
Y. Lei, J. Shi, T. Zhao
doaj +1 more source
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source