Results 91 to 100 of about 7,818,257 (391)

Extraordinary Sex Ratios: Cultural Effects on Ecological Consequences [PDF]

open access: yes, 2012
We model sex-structured population dynamics to analyze pairwise competition between groups differing both genetically and culturally. A sex-ratio allele is expressed in the heterogametic sex only, so that assumptions of Fisher's analysis do not apply ...
Ferenc Molnár   +3 more
core   +4 more sources

Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276

open access: yesFEBS Open Bio, EarlyView.
Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig   +7 more
wiley   +1 more source

Down‐regulation of Shh in the hair follicles of mice during chemotherapy‐induced hair loss is mediated by the JAK/STAT1 signaling pathway

open access: yesFEBS Open Bio, EarlyView.
We found that during chemotherapy‐induced alopecia (CIA), Sonic hedgehog (Shh) expression significantly decreased in hair follicle Shh+ cells, whereas the Janus‐activated kinase/signal transducer and activator of transcription 1 (JAK/STAT1) signaling pathway was markedly activated.
Ruifang Fan   +6 more
wiley   +1 more source

Defining sex and virginity loss [PDF]

open access: yes, 2011
This study has examined definitions of sex and virginity loss and the influence of gender, religiosity, middle school sex education, and the importance of virginity on those definitions. The study also tests the applicability of social exchange theory to
Wright, Matthew R.
core   +1 more source

A marker suitable for sex-typing birds from degraded samples [PDF]

open access: yes, 2015
A new primer set was developed for sex-typing birds, Z37B. This primer set was designed to amplify alleles of small size to render it suitable for sex-typing degraded samples, including shed feathers.
Brekke, P   +3 more
core   +2 more sources

Sex differences in metabolic regulation and diabetes susceptibility

open access: yesDiabetologia, 2019
Gender and biological sex impact the pathogenesis of numerous diseases, including metabolic disorders such as diabetes. In most parts of the world, diabetes is more prevalent in men than in women, especially in middle-aged populations. In line with this,
Blandine Tramunt   +6 more
semanticscholar   +1 more source

Cognitive Impairment in Multiple Sclerosis: The Role of Clinical and Sociodemographic Factors ‐ A Systematic Review and Meta‐Analysis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive impairment (CI) affects the quality of life in multiple sclerosis (MS). Identifying influencing factors is key to improving CI monitoring. This systematic review and meta‐analysis examines clinical and sociodemographic variables impacting the cognitive screening Symbol Digit Modalities Test (SDMT) performance across MS ...
Katalin Lugosi   +8 more
wiley   +1 more source

Gender‐specific health implications of minority stress among lesbians and gay men

open access: yesAustralian and New Zealand Journal of Public Health, 2016
Objectives: Lesbians and gay men are exposed to unique minority stressors. We examined the health implications of one type of distal minority stressor (victimisation) and one type of proximal minority stressor (sexual identity concealment due to ...
Emily Bariola   +2 more
doaj   +1 more source

Premarital Sex Among Adolescent Street Children in Pekanbaru [PDF]

open access: yes, 2018
Premarital sex is any behavior that is driven by sexual desire with the opposite sex before marriage. Some premarital sex activities include feeling, kissing, necking, petting, and intercourse.
Alamsyah, A. (Agus)   +2 more
core  

Uniform female-biased sex ratios in alpine willows [PDF]

open access: yes, 2012
Premise of the study: The development of biased sex ratios in dioecious plant species has been ascribed to either (1) factors influencing differential adult mortality of male and female plants or (2) factors acting at an early life stage that determine ...
Hik, David S., Myers-Smith, Isla H.
core   +1 more source

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