نتایج جستجو برای: generalized mantel

تعداد نتایج: 167920  

Journal: :Proceedings. Biological sciences 1998
X Lambin D A Elston S J Petty J L MacKinnon

We demonstrate evidence for the presence of travelling waves in a cyclic population of field voles in northern Britain by fitting simple, empirical models to spatially referenced time series data. Population cycles were broadly synchronous at all sites, but use of Mantel correlations suggested a strong spatial pattern along one axis at a projection line 72 degrees from North. We then fitted a g...

Journal: :Journal of data analysis and information processing 2023

The Cochran-Mantel-Haenszel (CMH) test, developed in the 1950s, is a classic health research, especially epidemiology and other fields which dichotomous polytomous variables are frequent. This nonparametric test makes it possible to measure check effect of an antecedent variable X on outcome Y, statistically controlling third Z that acts as confounding relationship between Y. Both Y measured qu...

2017
Jianye Zhou Yiqing Yao Kangli Jiao Jumei Zhang Xin Zheng Fang Wu Xiaopan Hu Junping Li Zhanhai Yu Gaosen Zhang Nan Jiang Zhiqiang Li

As potential biomarkers in periodontitis, microbiome, and cytokines have recently been extensively investigated, but combined analyses of the variations between the microbial structure and cytokine composition are rare. The present study aimed to investigate whether there are differences in the combined profile of microbiome and cytokines in individuals with or without periodontitis. The microb...

2002
Laetitia Serrano Gaëlle Blanvillain Daniel Soyez Guy Charmantier Evelyse Grousset Fabien Aujoulat Céline Spanings - Pierrot

exposed to a wide range of salinities. According to the salinity of the medium, they are submitted to osmotic water exchanges and diffusive ion movements between their hemolymph and the external medium. In order to maintain their hydromineral balance, euryhaline crustaceans are able to regulate their body fluid through a decrease in the tegument permeability and an active uptake or excretion of...

2013
Chris J Bushe Nicola C Savill

BACKGROUND Attention Deficit Hyperactivity Disorder (ADHD) is becoming an increasingly commonly diagnosed and treated childhood illness. Untreated ADHD is recognised as an independent risk factor for suicide-related events and deliberate self-harm and is reported more commonly in these populations. With the treatment of ADHD it is thus crucial to understand further any associations between phar...

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