نتایج جستجو برای: growth velocity

تعداد نتایج: 953815  

2011
Laura Johnson Clare H. Llewellyn Cornelia H. M. van Jaarsveld Tim J. Cole Jane Wardle

OBJECTIVE Infancy is a critical period during which rapid growth potentially programs future disease risk. Identifying the modifiable determinants of growth is therefore important. To capture the complexity of infant growth, we modeled growth trajectories from birth to six months in order to compare the genetic and environmental influences on growth trajectory parameters with single time-point ...

2015
HUNTER S. LENIHAN JAMES L. HENCH SALLY J. HOLBROOK RUSSELL J. SCHMITT MATTHEW POTOSKI

Hydrodynamic conditions can influence the distribution and abundance of aquatic species in many ways, including directly through disturbance and resource delivery, and indirectly by altering environmental cues and species interactions. In coral reef ecosystems, corallivory is an important top-down control of coral populations, while water motion can enhance coral performance via autotrophic and...

ژورنال: Hormozgan Medical Journal 2011
Keshavarz, M.H, Mohammadi, K, Zare, SH,

Introduction: Inhaled corticosteroids are recognized as the most effective antiinflammatory therapy in patient with asthma. Further studies must be done about potential adverse effects of inhaled corticosteroid on linear growth in asthmatic children. This study aims to assess the effects of treatment with Inhaled corticosteroids on linear growth in 6-12 years old asthmatic children. Meth...

2007
NIKOLAOS A. BAKAS BRIAN F. FARRELL

Interaction of internal gravity waves with a horizontal shear flow in the absence of potential vorticity perturbations is investigated making use of closed-form solutions. Localized wave packet trajectories are obtained, the energy growth mechanisms occurring are identified, and the potential role of perturbation growth in wave breaking is assessed. Regarding meridional propagation, the wave pa...

2016
Ying Ruan Amirhossein Mohajerani Ming Dao

Rapid dendrite growth in single- or dual-phase multicomponent alloys can be manipulated to improve the mechanical properties of such metallic materials. Rapid growth of (αFe) dendrites was realized in an undercooled Fe-5Ni-5Mo-5Ge-5Co (wt.%) multinary alloy using the glass fluxing method. The relationship between rapid dendrite growth and the micro-/nano-mechanical properties of the alloy was i...

Journal: :Archives of disease in childhood 1977
M Fujimura

The postnatal rate of head growth in 63 infants of less than 34 weeks' gestation was examined retrospectively, together with that of 7 other infants of between 34 and 40 weeks' gestation who had severe respiratory illnesses. From the serial measurements of head circumference the timing of maximum velocity of postnatal head growth was examined and related to the infant's gestational age, nutriti...

Journal: :American journal of physical anthropology 1988
P H Buschang R Tanguay A Demirjian L LaPalme H Goldstein

Two-level polynomial models are used to summarize the amount Sella-Gnathion (S-Gn) and direction Nasion-Sella-Gnathion (N-S-Gn) of growth changes for the cephalometric landmark gnathion. Growth descriptions pertain to a mixed longitudinal sample of 209 French-Canadian children 10-15 years of age. The boy's growth curve attains mean minimum prepubertal velocity at 10.8 years and maximum pubertal...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

Journal: :international journal of mathematical modelling and computations 0
a. k. dhar joydev mondal iiest,westbengal,india india iiest,mathematics,shibpur,westbengal, india

asymptotically exact and nonlocal third order nonlinear evolution equations are derivedfor two counterpropagating surface capillary gravity wave packets in deep water in thepresence of wind flowing over water.from these evolution equations stability analysis ismade for a uniform standing surface capillary gravity wave trains for longitudinal perturbation. instability condition is obtained and g...

1995
P. L. Krapivsky E. Ben - Naim

We study kinetic and jamming properties of a space covering process in one dimension. The stochastic process is defined as follows: Seeds are nucleated randomly in space and produce rays which grow with a constant velocity. The growth stops upon collision with another ray. For arbitrary distributions of the growth velocity, the exact coverage, velocity and size distributions are evaluated for b...

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