Results 21 to 30 of about 60,750 (267)
The Impacts of Rural Immigration on Population Structure in Rural Areas: A Case Study on Birjand [PDF]
جغرافیا و توسعه, 2003 The peresent study deals with considering one of the effects of rural depopulation. Rural immigration enhanced leaving rural areas especially those villages with less than fifty persons which is due to lack of small units stability against immigration ...
gavad mekaneiki, s.hasan ghalibafan
doaj +1 more source
Mass Depopulation of Swine during COVID-19: An Exploration of Swine Veterinarians’ Perspectives
Veterinary Sciences, 2022 This qualitative study (n = 25) was created to better understand the mental health of U.S. swine veterinarians who were involved in the mass depopulation events related to COVID-19.
Cori Bussolari +4 more
doaj +1 more source
BBR-induced Stark shifts and level broadening in helium atom [PDF]
, 2017 The precise calculations of blackbody radiation (BBR)-induced Stark shifts and depopulation rates for low-lying states of helium atom with the use of variational approach are presented.
Jiali Deng +4 more
core +6 more sources
The Impact of PRRS Eradication Program on the Production Parameters of the Hungarian Swine Sector
Animals, 2023 Background: The Hungarian national eradication program of PRRS was successfully completed between 2014 and 2022. There were doubts about the efficiency of the eradication program in Hungary from the beginning to the tune that it might only be carried out
István Szabó +7 more
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A Systematic Literature Review on Depopulation Methods for Swine
Animals, 2020 Swine mass depopulation refers to the destruction of large numbers of pigs and may include not only animals affected with a disease but also healthy pigs in a facility or surrounding areas.
Andréia G. Arruda +5 more
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Animals, 2022 Partial depopulation is the removal and slaughter of part of a flock prior to the final slaughter age, and this practice allows broiler producers to optimize stocking density in broiler houses.
Nunzio Sarnino +3 more
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Factors associated with the introduction of classical swine fever virus into pig herds in the central area of the 1997/98 epidemic in the Netherlands [PDF]
, 2001 A matched case-control study of 135 infected and 99 uninfected pig herds from the central area of the 1997 to 1998 epidemic of classical swine fever (CSF) in The Netherlands was undertaken to identify factors associated with the introduction of the virus.
Elbers, A.R.W. +2 more
core +2 more sources
Population and Depopulation [PDF]
Nature, 1929 AT the World Population Conference held at Geneva in 1927, one might observe a contrast in viewpoint of the very greatest interest. The delegates from the United States were much concerned with the imminence of the dangers of over-population, while the majority of European speakers, at least those who spoke with authority on their own national ...
openaire +1 more source
Finnish Yearbook of Population Research, 2022 Blessed by its geology but a prisoner of its geography, the inhabitants of Ukraine have suffered repeated destructive depopulation. The population loss in the Ukraine 1914–21 was over five million.
David Coleman
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What will Increase the Birth Rate — Benefits for Families with Children or Demographic Self-Regulation? [PDF]
Социологический журнал, 2020 The author criticizes the opinion of A.G. Vishnevsky that so-called demographic selfregulation, i.e. the population spontaneous reacting to living conditions, can stop the natural decline of the population (depopulation).
Alexander B. Sinelnikov
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