Results 21 to 30 of about 5,400,886 (261)
Changes in the age structure of the population in the settlements of Zajecar municipality [PDF]
The paper analyzes changes in age structure of 42 settlements of Zaječar community from aspects of total amount of population, population size, sort, type and the hypsometric zone they belong to. Statistical analysis done on a two census years (1971. and
Pavlović Sanja, Jančić Marijana
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Discrete Time Optimal Harvesting of Fish Populations with Age Structure
We consider an optimal fishery harvesting problem using an age-structured population model with nonlinear recruitment. The motivating example is Atlantic Cod. The goal is to maximize the profit (total gain) of fishing.
Wandi Dine +2 more
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Objective – to define the diversity of Rosaceae representatives in parks and squares of Kryvyi Rih city and to evaluate their vitality, longevity and perspectives of further apply for landscaping of the region. Material and methods.
Y.S. Yukhimenko, I.I. Korshykov
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Utilization life span of army guided rockets and reliability of inbuilt elements
In the article are analysed Army anti-armour and antiaircraft guided rockets and the correlation between the age of rockets, conditions for their storage, and the number of registered malfunctioning rockets is established.
Miroslav Savanović
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Geographical Variation in Body Size in the Asian Common Toad (Duttaphrynus melanostictus)
The geographic variation in life-history traits of organisms and the mechanisms underlying adaptation are interesting ideas in evolutionary biology. This study investigated age and body size of the Asian common toad (Duttaphrynus melanostictus) among ...
Kunhao Zhang +5 more
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This paper aims to facilitate a more nuanced understanding of regional disparities in the population age structure at a local scale by applying a recent method for visualizing these disparities.
Kleomenis Kalogeropoulos +3 more
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The Age Structure of the Population in the Eastern Region of the Republic of Macedonia in Aspect of Spatial Planning [PDF]
The social trends in the country reflected the demographic conditions in the East region. The continued decline in fertility rate, together with the expected extended life span and in collaboration with migration movements, conditioned reduction of ...
Mirjanka Madzević +2 more
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Structure and correlates of cognitive aging in a narrow age cohort [PDF]
Aging-related changes occur for multiple domains of cognitive functioning. An accumulating body of research indicates that, rather than representing statistically independent phenomena, aging-related cognitive changes are moderately to strongly ...
Briley, Daniel A +3 more
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The MULTIFAN method was used to analyse a series of monthly length-frequency distributions of the squat lobster Cervimunida johni Porter (1903) (Galatheidae), for the estimation of growth and age composition in the fishing area off Coquimbo (29°59’S-71 ...
Hugo Arancibia +2 more
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The Age Structure of a Population of \u3ci\u3eAedes Provocans\u3c/i\u3e (Diptera: Culicidae) in Southwestern Ontario [PDF]
In a previous paper it was shown that an eastern-Ontario population of the early-spring mosquito Aedes provocans had an atypical age structure: the adult-female population aged rapidly and synchronously, achieving an advanced gonotrophic age in an ...
Kurtz, Richard M, Smith, Stephen M
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