نتایج جستجو برای: degree variance

تعداد نتایج: 399451  

2009
Elin Thygesen Torill Christine Lindstrom Hans Inge Saevareid Knut Engedal ELIN THYGESEN TORILL CHRISTINE LINDSTROM HANS INGE SAEVAREID KNUT ENGEDAL

Aims: The aims were to investigate the factor structure of the Subjective Health Complaints Inventory (SHC) in a population of 75 years and above and to identify whether somatic, psychosocial, and coping factors were associated with the SHC factors. Methods: Data from 242 elderly persons were analyzed. The measures were: the SHC Inventory, Sense of Coherence, Social Provision Scale, Self-Rated ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
John Hunt Leigh W Simmons

While theoretical models of the evolution of parental care are based on the assumption of underlying genetic variance, surprisingly few quantitative genetic studies of this life-history trait exist. Estimation of the degree of genetic variance in parental care is important because it can be a significant source of maternal effects, which, if genetically based, represent indirect genetic effects...

Journal: :Monthly Notices of the Royal Astronomical Society 2010

Journal: :Journal of Economic Theory 2015

2004
Remco van der Hofstad Gerard Hooghiemstra Dmitri Znamenski

In this paper we derive results concerning the connected components and the diameter of random graphs with an arbitrary i.i.d. degree sequence. We study these properties primarily, but not exclusively, when the tail of the degree distribution is regularly varying with exponent 1 − τ . There are three distinct cases: (i) τ > 3, where the degrees have finite variance, (ii) τ ∈ (2, 3), where the d...

Journal: :Archives of general psychiatry 2012
Carolyn E Sartor Julia D Grant Michael T Lynskey Vivia V McCutcheon Mary Waldron Dixie J Statham Kathleen K Bucholz Pamela A F Madden Andrew C Heath Nicholas G Martin Elliot C Nelson

CONTEXT Understanding the relative contributions of genetic and environmental factors to trauma exposure, posttraumatic stress disorder (PTSD), and major depressive disorder (MDD) is critical to developing etiologic models of these conditions and their co-occurrence. OBJECTIVES To quantify heritable influences on low-risk trauma, high-risk trauma, PTSD, and MDD and to estimate the degree of o...

Journal: :transactions on combinatorics 2013
ali sahal veena mathad

an equitable domination has interesting application in the contextof social networks. in a network, nodes with nearly equal capacitymay interact with each other in a better way. in the societypersons with nearly equal status, tend to be friendly. in thispaper, we introduce new variant of equitable domination of agraph. basic properties and some interesting results have beenobtained.

Journal: :American journal of epidemiology 2005
Carolyn M Salafia Elizabeth Maas John M Thorp Barbara Eucker John C Pezzullo David A Savitz

Fetal growth depends in part on placental growth. The authors tested placental measures derived from digital images for reliability and to evaluate their association with birth weight and gestational age. A total of 628 women recruited into the Pregnancy, Infection, and Nutrition Study, a prospective cohort study of preterm birth in central North Carolina between 2002 and 2004, delivered single...

Journal: :Evolution; international journal of organic evolution 1999
L Lacey Knowles André Levy Jason M McNellis Kimberly P Greene Douglas J Futuyma

Although inbreeding, on average, decreases additive genetic variance, some inbred populations may show an increase in phenotypic variance for some characters. In those populations with increased phenotypic variance, character changes by peak shifts may occur because of the effects of the higher variance on the adaptive landscape. A population's increased phenotypic variance may place it in the ...

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