نتایج جستجو برای: age distribution

تعداد نتایج: 1330455  

Journal: :Annals of the New York Academy of Sciences 2009
Maria Larsson Johan Willander

This overview focuses on autobiographical odor memory and how information evoked by the olfactory sense may differ from memories evoked by visual or verbal information. Three key topics are addressed: (a) age distributions of evoked memories; (b) phenomenological experience; and (c) semantic processing. Current evidence suggests that memories triggered by olfactory information are localized to ...

2017
Bryan A. Moyers Jianzhi Zhang

Phylostratigraphy, originally designed for gene age estimation by BLAST-based protein homology searches of sequenced genomes, has been widely used for studying patterns and inferring mechanisms of gene origination and evolution. We previously showed by computer simulation that phylostratigraphy underestimates gene age for a nonnegligible fraction of genes and that the underestimation is severer...

Journal: :Ground water 2009
Linda R Woolfenden Timothy R Ginn

The age of ground water in any given sample is a distributed quantity representing distributed provenance (in space and time) of the water. Conventional analysis of tracers such as unstable isotopes or anthropogenic chemical species gives discrete or binary measures of the presence of water of a given age. Modeled ground water age distributions provide a continuous measure of contributions from...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2009
Attila Szolnoki Matjaz Perc György Szabó Hans-Ulrich Stark

Aging is always present, tailoring our interactions with others, and postulating a finite lifespan during which we are able to exercise them. We consider the prisoner's dilemma game on a square lattice and examine how quenched age distributions and different aging protocols influence the evolution of cooperation when taking the life experience and knowledge accumulation into account as time pas...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم و فنون مازندران 0

مدل روزنه های موازی موج دار (corrugated oarallel bundle model) برای تعریف اثر ساختمان روزنه ها در نفوذ-واکنش (diffusion and reaction) در کاتالیستهای متخلخل بکار می رود. در مدل روزنه های موج دار، از یک دسته روزنه های اصلی (pore) استفاده شده است . هر یک از این روزنه های اصلی دارای یکسری عناصر روزنه می باشد که هر عنصر دارای یک شعاع تعیین شده به صورت اتفاقی از یک توزیع اندازه روزنه ها (pore size di...

Journal: :The Veterinary record 1996
R H Bradshaw S J Hall D M Broom

Furthermore, it made use of umbilical girth, which was difficult to measure in the donkeys. The equation of Eley and French (1993) for adult donkeys also consistently overestimated the liveweights of the Moroccan donkeys. Hard working donkeys, particularly in areas where the feed supply is irregular, are more likely to be in poor than in good body condition. Unfortunately Eley and French (1993)...

2017
Marian Zaharia

Purpose – This study intends to present some inluences developed during the economic crisis related to the education area in some European countries. The study wants to present a comparative analysis among these European countries. Design/Methodology/Approach – This study is based on the Eurostat data series and is designed due to the statistical data processing. Findings – The study revealed s...

2010
Nathan A. Collins

A considerable body of research focuses on why voter turnout changed — specifically, why it declined — in the 1960s and 1970s. Most models of the change focus on factors such as a decline in civic involvement or a shift in the age distribution toward younger citizens who vote less frequently. While these approaches have taught us much about voter turnout, they are puzzling in that none actually...

Journal: :Salud publica de Mexico 2016
Amado D Quezada Armando García-Guerra Leticia Escobar

OBJECTIVE To assess the performance of a simple correction method for nutritional status estimates in children under five years of age when exact age is not available from the data. MATERIALS AND METHODS The proposed method was based on the assumption of symmetry of age distributions within a given month of age and validated in a large population-based survey sample of Mexican preschool child...

2016
Mart Vlam Peter van der Sleen Peter Groenendijk Pieter A. Zuidema

Over the past few decades there has been a growing realization that a large share of apparently 'virgin' or 'old-growth' tropical forests carries a legacy of past natural or anthropogenic disturbances that have a substantial effect on present-day forest composition, structure and dynamics. Yet, direct evidence of such disturbances is scarce and comparisons of disturbance dynamics across regions...

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