Results 131 to 140 of about 1,704,046 (402)

Cohort fertility decline in low fertility countries: Decomposition using parity progression ratios

open access: yesDemographic Research, 2018
Background: The long-term decline in cohort fertility in highly developed countries has been widely documented. However, no systematic analysis has investigated which parity contributed most to the fertility decline to low and very low levels ...
Krystof Zeman   +3 more
doaj   +1 more source

The devil is in the dispersers: predictions of landscape connectivity change with demography

open access: yes, 2014
Summary 1. Concern about the effects of habitat fragmentation has led to increasing interest in dispersal and connectivity modelling. Most modern techniques for connectivity modelling have resistance surfaces as their foundation.
N. Elliot   +3 more
semanticscholar   +1 more source

Parametric density-based optimization of partition in cluster analysis, with applications [PDF]

open access: yesarXiv, 2013
We developed an optimal in the natural sense algorithm of partition in cluster analysis based on the densities of observations in the different hypotheses. These densities may be characterized, for instance, as the multivariate so-called "quasi-Gaussian distribution".
arxiv  

Geometry of the sample frequency spectrum and the perils of demographic inference [PDF]

open access: yesarXiv, 2017
The sample frequency spectrum (SFS), which describes the distribution of mutant alleles in a sample of DNA sequences, is a widely used summary statistic in population genetics. The expected SFS has a strong dependence on the historical population demography and this property is exploited by popular statistical methods to infer complex demographic ...
arxiv  

A Framework For Gait-Based User Demography Estimation Using Inertial Sensors [PDF]

open access: yesarXiv
Human gait has been shown to provide crucial motion cues for various applications. Recognizing patterns in human gait has been widely adopted in various application areas such as security, virtual reality gaming, medical rehabilitation, and ailment identification.
arxiv  

Calcium modulating ligand confers risk for Parkinson's disease and impacts lysosomes

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Abstract Objective Several genetic loci known to confer risk for Parkinson's disease (PD) function in lysosomal pathways. We systematically screened common variants linked to PD risk by genome‐wide association studies (GWAS) for impact on cerebrospinal fluid (CSF) proteins reflecting lysosomal function.
Hanwen Zhang   +16 more
wiley   +1 more source

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