Results 151 to 160 of about 11,331,211 (305)

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

The Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla, Olalla Prado‐Nóvoa, Kevin P. Davy, José Miguel Carretero, Rebeca García‐González   +4 more
wiley   +1 more source

The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals

The Anatomical Record, EarlyView.
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra, Jonathan C. K. Wells   +1 more
wiley   +1 more source

Affective dimensions in the information behavior of forcibly displaced people: A literature review. An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, EarlyView.
Abstract This review analyzed 241 scholarly articles published between 2010 and 2025 in information science venues to examine how affect shapes refugees' information behavior during forced migration and to identify additional contextual factors. It identifies seven affective dimensions: anxiety, shame and stigma, grief and loss, frustration, (mis)trust,
Maja Krtalić, Lilach Alon
wiley   +1 more source

Nutritional factors in milk from Brazilian mothers delivering small for gestational age neonates

Revista de Saúde Pública
The composition of breast milk from brazilian mothers delivering low birthweight infants and its adequacy as a source of nutrients for this group has not yet been fully elucidated. A total of 209 milk samples from 66 women were analysed. The mothers were
Anete S. Grumach, Solange E.I. Jerônimo, Marcia Hage, Magda M.S. Carneiro-Sampaio   +3 more
doaj  

Sleep in Young Children With Autism, ADHD and Combined Presentations

Autism Research, EarlyView.
ABSTRACT Autism and attention deficit hyperactivity disorder (ADHD) are often accompanied by sleep problems. Longitudinal studies hint towards a greater proportion of persisting sleep problems across early development in neurodivergent compared to neurotypical individuals. Within the context of a prospective infant sibling study of autism and ADHD (n = 
Eva‐Maria Kurz, Sven Bölte, Terje Falck‐Ytter   +2 more
wiley   +1 more source

Association Between Isolated Maternal Hypothyroxinemia and Adverse Maternal and Infant Outcomes. [PDF]

J Obstet Gynaecol Res
Zhang W, Liu S, Zheng J, Wang W, Ding X.
europepmc   +1 more source

Maternal Smoking During Pregnancy and Early Child Outcomes [PDF]

We estimate the harm from smoking during pregnancy upon child birth outcomes, using a rich dataset on a cohort of mothers and their births. We exploit a fixed effects approach to disentangle the correlation between smoking and birth weight from the ...
Emma Tominey
core  

Autism Screening in the First Year and Beyond: Comparison of Multiple Measures

Autism Research, EarlyView.
ABSTRACT Autism screening aids in early detection and diagnosis. Several screeners are available for toddlers 16 months and older, but there is little data on the accuracy of screening measures used in the first year of life. A community sample (N = 1641) completed three screeners—M‐CHAT‐R, ITC, VIRSA—online at 6, 9, 12, 18, and 24 months of age ...
Devon N. Gangi, Chandni Parikh, Monique Moore Hill, Shyeena Maqbool, Rachel Ni, Simon Dvorak, Gregory S. Young, Sally Ozonoff   +7 more
wiley   +1 more source

Factors associated with low birth weight, United States, 1976 [PDF]

An analytical study of demographic, socioeconomic, and health factors associzted with low birth weight and a review of recent trends in low birth weight incidence, based on data reported on birth certificates.Includes bibliographical references ...

core