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Новости за 24.05.2024

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Clinical evaluation of platelet-rich plasma therapy for osteonecrosis of the femoral head: A systematic review and meta-analysis

Plos.org 
En

by Guimei Guo, Wensi Ouyang, Guochen Wang, Wenhai Zhao, Changwei Zhao

Objective

This meta-analysis aims to assess the efficacy and safety of platelet-rich plasma (PRP) for osteonecrosis of the femoral head (ONFH).

Methods

We comprehensively searched randomized controlled trials in PubMed, Web of Science, EMBASE, the Cochrane Central Register of Controlled Trials, Chinese National Knowledge Infrastructure, China Science and Technology Journal Database, WanFang, and Chinese BioMedical... Читать дальше...

Does strategic coupling of TNCs affect their exit from host regions: Empirical analysis of the exit of Taiwanese enterprises from mainland China

Plos.org 
En

by Jindong Chen, Jiping Sun, Suqiong Wei, Xiaojun You

This study aims to investigate the temporal and spatial attributes of the exit of Taiwanese enterprises from mainland China between 2001 and 2021, by applying enterprise database data. Furthermore, the influence of strategic coupling on Taiwanese enterprises’ exit from mainland China was also investigated. The following are the key findings: The spatial distribution pattern of the exit rate of Taiwanese enterprises in mainland China varied at different phases. Читать дальше...



Middle through late Holocene long-distance transport of exotic shell personal adornments in Central West Patagonia (southern South America). The archaeomalacological assemblage of Baño Nuevo 1

Plos.org 
En

by Heidi Hammond, Leandro Zilio, Amalia Nuevo-Delaunay, César Méndez

The exchange of information and social interactions on broad spatial scales between human groups in the past can be studied through the provenance of key indicators of distant origin recorded at archaeological sites. The remains of shells of mollusk species, especially when crafted as elements of personal ornaments, express aspects of the behaviors and valuations for the populations that selected, transformed, and exchanged such items. Читать дальше...

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Москва

Программа «Цифровой инвестор» ГМК "Норникель" выходит на новый этап


Simultaneous estimation of genotype error and uncalled deletion rates in whole genome sequence data

Plos.org 
En

by Nobuaki Masaki, Sharon R. Browning, Brian L. Browning

Genotype data include errors that may influence conclusions reached by downstream statistical analyses. Previous studies have estimated genotype error rates from discrepancies in human pedigree data, such as Mendelian inconsistent genotypes or apparent phase violations. However, uncalled deletions, which generally have not been accounted for in these studies, can lead to biased error rate estimates. In this study, we propose a genotype... Читать дальше...

Male allocation to ejaculation and mating effort imposes different life history trade-offs

Plos.org 
En

by Meng-Han Joseph Chung, Rebecca J. Fox, Michael D. Jennions

When males compete, sexual selection favors reproductive traits that increase their mating or fertilization success (pre- and postcopulatory sexual selection). It is assumed that males face a trade-off between these 2 types of sexual traits because they both draw from the same pool of resources. Consequently, allocation into mate acquisition or ejaculation should create similar trade-offs with other key life history traits. Tests of these assumptions are exceedingly rare. Читать дальше...


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