Results 51 to 60 of about 3,431,524 (310)

Impacts of Max-Stable Process Areal Exceedance Calculations to Study Area Sampling Density, Surface Network Precipitation Gage Extent and Density, and Model Fitting Method

Hydrology, 2023
Max-stable process (MSP) models can be fit to data collected over a spatial domain to estimate areal-based exceedances while accounting for spatial dependence in extremes. They have theoretical grounding within the framework of extreme value theory (EVT).
Brian Skahill, Cole Haden Smith, Brook T. Russell, John F. England   +3 more
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Spatiotemporal Analysis of Rainfall and Droughts in a Semiarid Basin of Brazil: Land Use and Land Cover Dynamics

Remote Sensing, 2023
Precipitation estimation is a challenging task, especially in regions where its spatial distribution is irregular and highly variable. This study evaluated the spatial distribution of annual rainfall in a semiarid Brazilian basin under different regimes ...
Lizandra de Barros de Sousa, Abelardo Antônio de Assunção Montenegro, Marcos Vinícius da Silva, Thayná Alice Brito Almeida, Ailton Alves de Carvalho, Thieres George Freire da Silva, João Luis Mendes Pedroso de Lima   +6 more
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, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Análise espacial da umidade do solo cultivado com soja sob dois sistemas de manejo Spatial analysis of soil moisture with soybean under two management systems

Revista Brasileira de Engenharia Agrícola e Ambiental, 2007
Abordaram-se, neste trabalho, aspectos básicos da geoestatística para análise espacial de dados de umidade do solo, com ênfase na análise de semivariograma como metodologia para determinação da dependência espacial.
Syonei V. Zanette, Silvio C. Sampaio, Marciane G. Silvestre, Márcio A. V. Boas, Miguel A. Uribe-Opazo, Manoel M. F. de Queiroz   +5 more
doaj   +1 more source

Non-Normal Market Losses and Spatial Dependence Using Uncertainty Indices

Mathematics, 2022
We analyse spatial dependence between the risks of stock markets. An alternative definition of neighbour is used and is based on a proposed exogenous criterion obtained with a dynamic Google Trends Uncertainty Index (GTUI) designed specifically for this ...
Catalina Bolancé, Carlos Alberto Acuña, Salvador Torra   +2 more
doaj   +1 more source

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

FEBS 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, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS 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, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

AnM-Estimator of Spatial Tail Dependence [PDF]

Journal of the Royal Statistical Society Series B: Statistical Methodology, 2014
SummaryTail dependence models for distributions attracted to a max-stable law are fitted by using observations above a high threshold. To cope with spatial, high dimensional data, a rank-based M-estimator is proposed relying on bivariate margins only. A data-driven weight matrix is used to minimize the asymptotic variance.
Einmahl, J.H.J., Kiriliouk, A., Krajina, A., Segers, J.   +3 more
openaire   +6 more sources

Identifying nonlinear spatial dependence patterns by using non-parametric tests: Evidence for the European Union [PDF]

Investigaciones Regionales - Journal of Regional Research, 2011
Accounting for spatial structures in econometric studies is becomingan issue of special interest, given the presence of spatial dependence and spatialheterogeneity problems arising in data.
Fernando A. López-Hernández, Andrés Artal-Tur, M. Luz Maté-Sánchez-Val   +2 more
doaj