Results 71 to 80 of about 48,703 (296)

Sleep and Maladaptive Personality Traits: A Twin Study

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Sleep is essential for human functioning, but little attention has been paid to the interplay between sleep and maladaptive personality traits. We examined genetic and environmental associations between sleep and four maladaptive domains (MDs)—Negative Affectivity, Detachment, Disinhibition, and Psychoticism—within the framework of the DSM‐5 ...
Ziyu Ren   +11 more
wiley   +1 more source

No evidence of a higher 10 year period prevalence of diabetes among 77,885 twins compared with 215,264 singletons from the Danish birth cohorts 1910-1989 [PDF]

open access: yes, 2011
AIMS/HYPOTHESIS: Previous Danish twin studies have found a highly increased risk of precursors of type 2 diabetes as well as a higher prevalence of type 2 diabetes among twins compared with singletons.
Beck-Nielsen, Henning   +3 more
core   +1 more source

Public Health Professionals’ Perceptions on Intertwin Relationship in Multiple‐Birth Family Nursing

open access: yesPublic Health Nursing, EarlyView.
ABSTRACT Objective To describe how dominance, submissiveness, and speaking role appear in the intertwin relationship between twins under 7 years old. Design and Sample A cross‐sectional study design was used. The respondents (n = 72) were nurses. Information about the intertwin relationship was explored through Likert‐scale statements and open‐ended ...
Kristiina Heinonen   +3 more
wiley   +1 more source

Twin Acardiac: Case Reported From Ethiopia

open access: yesClinical Case Reports
Acardiac twinning is a rare congenital anomaly in monozygotic twin pregnancies, caused by abnormal placental vascular anastomosis. We present a case of monochorionic twinning: Twin A was a heterogeneous mass with no head or cardiac activity, while Twin B
Ebisa Erena muleta   +3 more
doaj   +1 more source

Does Early Life Health Predict Schooling Within Twin Pairs? [PDF]

open access: yes
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  

Research with twins: The concept of emergenesis. [PDF]

open access: yes, 1982
Preliminaty findings from an on-going study of monozygotic twins reared apart (MZA) and data from a larger sample of twins reared together (MZT and DZT), indicate a surprisingly strong influence of genetic variation on aptitudes, psychophysiological ...
Lykken, David T.
core   +1 more source

Twin study method: Unlocking genetic and environmental interactions

open access: yesEndocrine Journal
Twin studies offer a powerful approach for disentangling genetic and environmental influences on human traits. By comparing monozygotic twins with identical genetic makeup, researchers can more accurately identify the environmental contributions to ...
Mikio Watanabe
doaj   +1 more source

Heritability of pain catastrophizing and associations with experimental pain outcomes: a twin study [PDF]

open access: yes, 2015
This study used a twin paradigm to examine genetic and environmental contributions to pain catastrophizing and the observed association between pain Catastrophizing and cold-pressor task (CPT) outcomes. Male and female monozygotic (n = 206) and dizygotic
Afari   +54 more
core   +2 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Discordance of cardiovascular abnormalities in a monozygotic twin pair carrying a class II 1q21.1 microdeletion

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2020
Objective: We present the prenatal diagnosis of a class II 1q21.1 microdeletion in monozygotic (MZ) twins with discordant phenotypes. Case report: A monochorionic diamniotic twin pair presented with discordant ultrasound anomalies; twin A had ...
Shan-shan Shi   +4 more
doaj   +1 more source

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