Results 41 to 50 of about 8,858,929 (153)
Comparison of field population growths of three cereal aphid species on winter wheat
Plant Protection Science, 2003 Population growths of three aphid species colonising winter wheat stands, Metopolophium dirhodum, Rhopalosiphum padi and Sitobion avenae, were analysed by regression method.
Vojtěch Jarošík +2 more
doaj +1 more source
Migration as a means of population control [PDF]
, 1970 For more about the East-West Center, see http://www.eastwestcenter.org/That it makes a difference to ultimate population whether out-migrants are of fertile ages or not is well known.
Keyfitz, Nathan +1 more
core +1 more source
Pesquisa Agropecuária Brasileira, 2008 O objetivo deste trabalho foi avaliar a flutuação populacional de Harmonia axyridis em árvores frutíferas, durante dois anos (2004-2006), relacioná-la a variáveis abióticas e avaliar sua influência sobre outros coccinelídeos predadores, em Ponta Grossa ...
Julianne Milléo +3 more
doaj +1 more source
Validating a dynamic population microsimulation model: Recent experience in Australia [PDF]
Available published research on microsimulation tends to focus on the results of policy simulations rather than upon validation of the models and their outputs.
Marcia Keegan, Ann Harding, Simon Kelly
core
International funding for social science research on population : trends and issues
, 1981 Describes levels and trends in funding population-related social science research provided during the period 1970-1979 by five primary donors: US-AID, UNFPA, Ford Foundation, Rockefeller Foundation and ...
Population Council, Baron, B.F.
core +1 more source
Study characteristics of juvenile diabetes mellitus cases in bangladesh.
Journal of Family and Reproductive Health, 2014 Objective: To identify the proportion and some selected characteristics of juvenile diabetics attending BIRDEM hospital. Materials and methods: This was a cross sectional study. The study was conducted in the BIRDEM hospital.
Rezaul Karim, Nusrat Jahan Mona
doaj
Intrinsically dynamic population models [PDF]
Intrinsically dynamic models (IDMs) depict populations whose cumulative growth rate over a number of intervals equals the product of the long term growth rates (that is the dominant roots or dominant eigenvalues) associated with each of those intervals ...
Robert Schoen
core
PRESENCE OF THE MEDITERRANEAN FRUIT FLY(Ceratitis capitata Wied.) IN SELECTED OLIVE ORCHARDS OF CENTRAL DALMATIA [PDF]
Poljoprivreda, 2007 Mediterranean fruit fly (Ceratitis capitata Wiedemann) is a regular pest of large number of cultivated and wild host plants in Dalmatia. However, this pest does not develop either inside fruits of cultivated olive - Olea europaea sativa or wild olive ...
M. Bjeliš
doaj
Genetic algorithms with memory- and elitism-based immigrants in dynamic environments [PDF]
, 2008 Copyright @ 2008 by the Massachusetts Institute of TechnologyIn recent years the genetic algorithm community has shown a growing interest in studying dynamic optimization problems. Several approaches have been devised.
Yang, S, Yang, Shengxiang
core +1 more source
LifeRodents are the most diverse group of mammals, yet the natural history of many species remains poorly understood due to their elusive behavior. In this study, we examined the population structure, home range, space use, and food selection of two ...
Ricardo Bovendorp +3 more
doaj +1 more source