Results 51 to 60 of about 1,815,255 (350)

Rotation in NGC 2264: a study based on CoRoT photometric observations [PDF]

open access: yes, 2013
Rotation is one of the key stellar parameters which undergo substantial evolution during the stellar lifetime, in particular during the early stages.
Affer, Laura   +4 more
core   +2 more sources

Sprinkler Irrigation as a Management Practice for \u3ci\u3eBemisia Tabaci\u3c/i\u3e (Homoptera: Aleyrodidae) in Cotton Fields [PDF]

open access: yes, 2018
Field experiments were conducted in 1999 and 2000 to investigate the effect of irrigation method on populations of Bemisia tabaci (Gennadius) and natural enemies in cotton fields in Aydın Province, Turkey.
Gencsoylu, Ibrahim, Sezgin, Fuat
core   +2 more sources

Stress during critical periods of development and risk for schizophrenia.

open access: yesSchizophrenia Research, 2019
Schizophrenia is a neurodevelopmental disorder with genetic predisposition, and stress has long been linked to its etiology. While stress affects all stages of the illness, increasing evidence suggests that stress during critical periods of development ...
F. Gomes, Xiyu Zhu, A. Grace
semanticscholar   +1 more source

Determination of polyphenols in Chinese jujube using ultra-performance liquid chromatography–mass spectrometry

open access: yesOpen Chemistry, 2023
The polyphenolic composition of the same variety of winter jujube was determined using ultra-performance liquid chromatography–mass spectrometry (UPLC–MS/MS). A metabolomic approach was employed to determine polyphenols at different developmental stages (
Liu Hongxia   +5 more
doaj   +1 more source

Stage selection and restricted oviposition period improves cryopreservation of dipteran embryos

open access: yesCryobiology, 2015
Embryos of two dipteran species (Musca domestica and Lucilia sericata) were assessed for an effective sampling time that would result in the highest post-cryopreservation hatch rate, with a primary goal to define species-specific egg collection periods and the effects of manual stage selection on post cryopreservation yield.
Rajamohan, Arun   +2 more
openaire   +2 more sources

Extinction, periodicity and multistability in a Ricker model of stage-structured populations [PDF]

open access: yesJournal of Difference Equations and Applications, 2016
We study the dynamics of a second-order difference equation that is derived from a planar Ricker model of two-stage (e.g. adult, juvenile) biological populations. We obtain sufficient conditions for global convergence to zero in the non-autonomous case. This gives general conditions for extinction in the biological context.
Lazaryan, N., Sedaghat, H.
openaire   +2 more sources

Ovarian growth and ovulation in the mature blue crab, Callinectes sapidus Rathbun [PDF]

open access: yes, 1942
Introduction. Observations: structure of the ovary during the periods of growth and ovulation in the mature crab (stages 1-5).
Hard, W.L.
core  

Is there evidence for sensitive periods in emotional development?

open access: yesCurrent Opinion in Behavioral Sciences, 2020
During sensitive periods an individual's development is especially receptive to information from the environment in ways that it is not at earlier and later developmental stages.
Kristina Woodard, S. Pollak
semanticscholar   +1 more source

Treatment Decision‐Making Roles and Preferences Among Adolescents and Young Adults With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Decision‐making (DM) dynamics between adolescents and young adults (AYAs) with cancer, parents, and oncologists remain underexplored in diverse populations. We examined cancer treatment DM preferences among an ethnically and socioeconomically diverse group of AYAs and their parents.
Amanda M. Gutierrez   +14 more
wiley   +1 more source

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra   +3 more
wiley   +1 more source

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