Results 101 to 110 of about 67,325 (296)
Two's company: Monozygotic twinning in the small‐spotted catshark (Scyliorhinus canicula)
Journal of Fish Biology, EarlyView.Abstract Developmental abnormalities in elasmobranchs (sharks and rays) are rarely documented, with reported cases primarily involving fin or cranial deformities. Monozygotic twinning, the formation of identical twins from a single zygote, is particularly rare in these species and has been observed overwhelmingly in viviparous elasmobranchs.
Andrej A. Gajić +6 more
wiley +1 more source
Does Early Life Health Predict Schooling Within Twin Pairs? [PDF]
A large number of studies in labor economics estimate the returns to schooling using data on monozygotic twins, under the assumption that educational attainment is random within twin pairs. This exogeneity assumption has been commonly questioned, however,
Lundborg, Petter +2 more
core
Pan-Cancer Epigenetic Biomarker Selection from Blood Samples Using SAS [PDF]
MWSUG 2018 conference proceedings, 2018 A key focus in current cancer research is the discovery of cancer biomarkers that allow earlier detection with high accuracy and lower costs for both patients and hospitals. Blood samples have long been used as a health status indicator, but DNA methylation signatures in blood have not been fully appreciated in cancer research.
arxiv
Alcohol, Clinical and Experimental Research, EarlyView.
Chloe Slaney, George Davey Smith
wiley +1 more source
Chromosome 22q11.2 microdeletion in monozygotic twins with discordant phenotype and deletion size
Molecular Cytogenetics, 2012 We report on a pair of male monozygotic twins with 22q11.2 microdeletion, discordant phenotype and discordant deletion size. The second twin had findings suggestive of DiGeorge syndrome, while the first twin had milder anomalies without any cardiac ...
Halder Ashutosh +3 more
doaj +1 more source
Heritability of sleep architecture based on home polysomnography
Journal of Sleep Research, EarlyView.Summary We aimed to establish the heritability of polysomnography measures through the analysis of home polysomnography recordings from 648 participants in the Baependi Heart Study, a rural, family‐based, genetically admixed cohort based in the southeast of Brazil.
Mario Leocadio‐Miguel +7 more
wiley +1 more source
Lifespans of Twins : Does Zygosity Matter? [PDF]
, 2019 Studies with twins provide fundamental insights to lifespans of humans. We aim to clarify if monozygotic and dizygotic twin individuals differ in lifespan, that is, if zygosity matters.
Christensen, Kaare +6 more
core +2 more sources
A Twin Study of Genetic Contributions to Hippocampal Morphology in Schizophrenia
Neurobiology of Disease, 2002 Our goal was to establish whether altered hippocampal morphology represents a trait marker for genetic vulnerability in schizophrenia. We outlined the hippocampi on high-resolution MR images obtained from matched samples of control and discordant ...
Katherine L. Narr +13 more
doaj
Monozygotic Twinning in Mice [PDF]
Journal of Medical Genetics, 1965 Wallace, M E, Williams, D A
openaire +3 more sources
Social media use, online experiences, and loneliness among young adults: A cohort study
Annals of the New York Academy of Sciences, EarlyView.This study investigated associations between digital technology use and loneliness in an online survey of 1632 young adults in the UK. Total time spent online was associated with greater loneliness; however, use of social media specifically was not. Problematic technology use and experiences of victimization online were also associated with greater ...
Timothy Matthews +7 more
wiley +1 more source