Results 21 to 30 of about 11,078,888 (98)

Before the beginning: nutrition and lifestyle in the preconception period and its importance for future health

open access: yesThe Lancet, 2018
A woman who is healthy at the time of conception is more likely to have a successful pregnancy and a healthy child. We reviewed published evidence and present new data from high, low and middle income countries on the timing and importance of ...
J. Stephenson   +13 more
semanticscholar   +1 more source

The Prevalence of Anxiety Disorders during Pregnancy and the Postpartum Period: A Multivariate Bayesian Meta-Analysis

open access: yesJournal of Clinical Psychiatry, 2019
Objective To estimate the prevalence of anxiety disorders in pregnant and postpartum women and identify predictors accounting for variability across estimates.
Emily J. Fawcett   +4 more
semanticscholar   +1 more source

Nested long period grating interferometers [PDF]

open access: yes, 2007
The concept of nested fibre optic long period grating (LPG) based interferometers is introduced. A number of in-series, identical LPGs may be used to form a set of nested, multiplexed Mach-Zehnder interferometers that may demodulated and demultiplexed
Richard P. Murphy   +5 more
core   +1 more source

A critical period for second language acquisition: Evidence from 2/3 million English speakers

open access: yesCognition, 2018
Children learn language more easily than adults, though when and why this ability declines have been obscure for both empirical reasons (underpowered studies) and conceptual reasons (measuring the ultimate attainment of learners who started at different ...
Joshua K. Hartshorne   +2 more
semanticscholar   +1 more source

Period-to-period changes in average yearly deforestation.

open access: yes, 2022
Red municipalities represent increased deforestation compared to the previous period, while blue municipalities represent decreased deforestation. Areas with the greatest amount of change represent the frontier of deforestation.
Rayna Benzeev (12915081)   +6 more
core   +1 more source

Oxytocin-dependent reopening of a social reward learning critical period with MDMA

open access: yesNature, 2019
A critical period is a developmental epoch during which the nervous system is expressly sensitive to specific environmental stimuli that are required for proper circuit organization and learning.
Romain Nardou   +6 more
semanticscholar   +1 more source

Nonlinear effects on ENSO's period [PDF]

open access: yes, 2004
The dependence of ENSO’s period on its amplitude is examined using a simple delayed oscillator model. This dependence is first calculated in the strongly nonlinear regime by extracting and analyzing unstable periodic orbits from the chaotic attractor of ...
Eccles, Fiona, Tziperman, Eli
core   +3 more sources

Anxiety, Uncertainty and Resilience during the Pandemic Period-Anthropological and Psychological Perspectives

open access: yesAnxiety, Uncertainty, and Resilience During the Pandemic Period - Anthropological and Psychological Perspectives [Working Title], 2021
Following any natural disaster, tragedy, calamities, there are upsurge of mental health issues found worldwide. COVID 19 is no exception to them. Public health and infection control domains were the first hit at the peak of pandemic.
Ranjan Bhattacharyya
semanticscholar   +1 more source

High-resolution record of Northern Hemisphere climate extending into the last interglacial period

open access: yesNature, 2004
Two deep ice cores from central Greenland, drilled in the 1990s, have played a key role in climate reconstructions of the Northern Hemisphere, but the oldest sections of the cores were disturbed in chronology owing to ice folding near the bedrock.
K. K. Andersen   +48 more
semanticscholar   +1 more source

A stratigraphic framework for abrupt climatic changes during the Last Glacial period based on three synchronized Greenland ice-core records: refining and extending the INTIMATE event stratigraphy

open access: yes, 2014
Due to their outstanding resolution and well-constrained chronologies, Greenland ice-core records provide a master record of past climatic changes throughout the Last Interglacial–Glacial cycle in the North Atlantic region.
S. Rasmussen   +23 more
semanticscholar   +1 more source

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