Results 81 to 90 of about 9,751,388 (256)

Ductile B2 Intermetallics‐Driven Strength‐Ductility Synergy in Heterolaminated Multi‐Principal Element Alloys

open access: yesAdvanced Science, EarlyView.
Intrinsic phase toughening transforms a brittle B2 intermetallic into a plastically deformable, load‐bearing phase, while a heterogeneous laminated architecture suppresses strain localization and interface cracking. The synergy between ductile intermetallics and mesoscale heterogeneity establishes a general design strategy for breaking the long ...
Lu Yang   +9 more
wiley   +1 more source

Fertility trends by social status [PDF]

open access: yes
This article discusses how fertility relates to social status with the use of a new dataset, several times larger than the ones used so far. The status-fertility relation is investigated over several centuries, across world regions and by the type of ...
Vegard Skirbekk
core  

Thermal Control of Concentric Topographies Patterned by Dynamic Electro‐Templated Generated Chiral Solitonic Structures

open access: yesAdvanced Science, EarlyView.
An electro‐templating strategy directs the relaxation of cholesteric finger loops into discrete concentric rings whose geometry is electrically programmed. The photopolymerized structures retain the topological defect pattern and, upon heating, show reversible, castle‐like surface modulation.
Jacques A. Peixoto   +4 more
wiley   +1 more source

Social Class and the Fertility Transition: A Critical Comment on the Statistical Results Reported in Simon Szreter's Fertility, Class and Gender in Britain, 1860-1940 [PDF]

open access: yes
Simon Szreter’s book Fertility, Class, and Gender in Britain, 1860-1940 argues that social and economic class fails to explain the cross-sectional differences in marital fertility as reported in the 1911 census of England and Wales.
Geoffrey Barnes, Timothy Guinnane
core  

SDF‐1 Attenuates Oocyte Quality Decline During Reproductive Aging Through Autophagy‐Enhanced Stress Granule Scavenging

open access: yesAdvanced Science, EarlyView.
SDF‐1 levels decline significantly with maternal aging. Exogenous supplementation restores meiotic spindle morphology, chromosomal alignment, and mitochondrial function while reducing oxidative stress in aged oocytes. Mechanistically, SDF‐1 enhances autophagic activity to clear accumulated stress granules, thereby rescuing fertilization competence and ...
Rui Long   +12 more
wiley   +1 more source

After Decades of Suburban Deer Research and Management in the Eastern United States: Where Do We Go From Here?

open access: yesHuman-Wildlife Interactions, 2020
State wildlife agencies have regulatory authority and oversight over deer (Cervidae) management in the United States. However, increased urban sprawl and overabundant deer populations have created increased human–deer conflicts.
Paul D. Curtis
doaj  

Fertility in New York State in the Civil War Era [PDF]

open access: yes
This paper analyzes a five percent systematic sample of households from the manuscripts of the New York State Census of 1865, the first in the United States to ask a question on children ever born.
Michael R. Haines, Avery M. Guest
core  

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