نتایج جستجو برای: developmental time

تعداد نتایج: 1996514  

2001
Reed W. Larson

Young people develop as “the sum of past experiences,” and data on their time use are one means of quantifying those experiences. U.S. children and adolescents spend dramatically less time than in the agrarian past in household and incomegenerating labor. Because such labor is usually repetitive and unchallenging, this reduction has probably not deprived youths of crucial developmental experien...

2010
Oliver Tills John I. Spicer Simon D. Rundle

Climate change is predicted to increase sea level and cause saline intrusion of coastal freshwaters. This will have consequences for freshwater organisms inhabiting such areas; developmental phenotypic plasticity may facilitate the persistence of freshwater species under such scenarios of increased salinity. Here we investigated developmental plasticity under different salinity treatments (S = ...

2006
Dag L. Aksnes Christofer Troedsson Eric M. Thompson

Planktonic embryos are unprotected and experience high mortalities. Risk exposure and its consequences for survival depend very much on developmental time, which, in turn, is strongly affected by temperature. Developmental times in planktonic embryos have recently been correlated with cell cycle duration and egg size. Here, we elaborate on this by deriving a developmental time model from cell p...

2009
Rodrick Wallace

A cognitive paradigm for gene expression in developmental biology that is based on rigorous application of the asymptotic limit theorems of information theory can be adapted to highly parallel real-time computing. The coming Brave New World of massively parallel ‘autonomic’ and ‘Self-X’ machines driven by the explosion of multiple core and molecular computing technologies will not be spared pat...

Batol Bonyadpour Marzieh Akbarzadeh Marzieh Moattari Nasrin Bahmani Saeede Pour Ahmad

Breastfeeding plays a pivotal role in the promotion of health and prevention of psychological problems in children. This study aimed to compare the effects of breastfeeding educational programs on the development of infants aged 1-3 months based on the model of Belief, Attitude, Subjective Norm, and Enabling Factors (BASNEF) and application of acupressure on the GB-21 point. Methods: This quasi...

2012
Pamela Wolfberg Kristen Bottema-Beutel Mila DeWitt

Peer-play experiences are a vital part of children’s socialization, development, and culture. Children with autism face distinct challenges in social and imaginary play, which place them at high risk for being excluded by peers. Without explicit support, they are likely to remain isolated from peers and the consistent interactive play that encourages developmental growth. This article focuses o...

2017
Lars M. Göllner Nicola Ballhausen Matthias Kliegel Simon Forstmeier

The delay of gratification (DoG) in children is widely investigated with an experimental procedure originally called the "marshmallow test," whereas the studies on self-regulation (SR) in adolescents and adults usually use self-report questionnaires. Delay discounting (DD) measures simplify the DoG procedure and focus on monetary rewards. The aim of this study was to investigate age differences...

Journal: :iranian biomedical journal 0
زهره علیزاده zohreh alizadeh پریچهر پاس بخش parichehr pasbakhsh علیقلی صبحانی aligholi sobhani محمد بربرستانی mohammad barbarestani معرفت غفاری marefat ghafari فریده اعتصام faride etesam

early in the development of many animals, before transcription begins, any change in the pattern of protein synthesis is attributed to a change in the translational activity or stability of mrna in the egg and early embryo. as a result, translational control is critical for a variety of developmental decisions, including oocyte maturation and initiation of preimplantation development. in this s...

Journal: :Motor control 2012
Ilaria Masci Giuseppe Vannozzi Nancy Getchell Aurelio Cappozzo

Assessing movement skills is a fundamental issue in motor development. Current process-oriented assessments, such as developmental sequences, are based on subjective judgments; if paired with quantitative assessments, a better understanding of movement performance and developmental change could be obtained. Our purpose was to examine the use of inertial sensors to evaluate developmental differe...

2010
Frédéric Menu Marine Ginoux Etienne Rajon Claudio R. Lazzari Jorge E. Rabinovich

BACKGROUND The developmental time of vector insects is important in population dynamics, evolutionary biology, epidemiology and in their responses to global climatic change. In the triatomines (Triatominae, Reduviidae), vectors of Chagas disease, evolutionary ecology concepts, which may allow for a better understanding of their biology, have not been applied. Despite delay in the molting in som...

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