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) (Hymenoptera: Braconidae) reared on Corcyra cephalonica Stainton (Lepidoptera: Pyralidae) . Biolife , 3 , 653 – 656 . Southwood , T. R. E. ( 1976 ): Ecological Methods with Particular Reference to the Study of Insect Populations . Chapman and Hall

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Abstract  

Studies of journal citation patterns suggest that specialty areas within disciplines may be the most appro priate structural units for understanding the social organization of science. Citation studies necessarily are limited to scientists who publish, however, and studies of all members of particular disciplines would provide more general specialty structure data. Accordingly, this research applied factor analytic procedures previously used in studies of the structure of specialization among psychologists to all members of the Population Association of America. Four principal components derived from the self-designated specialties of these population scientist were rotated to a final solution by the varimax procedure and were interpreted as measuring, respectively,Social Emphasis, Geographic Emphasis, Formal Emphasis, andEpidemiological Emphasis. These results partially confirm the distinction sometimes made by population scientists between social demography and formal demography, but suggest this typology is incomplete. The results also illustrate techniques that could provide a useful alternative to citation analysis for researchers studying specialty structures in other disciplines.

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versus multilocation testing in related tropical maize populations. Crop Sci. , 35 , 63–69. Eaton D. L. Gains from selection under drought versus multilocation testing in

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Abstract  

Traces the growth of collaborated and funded research as reflected in research papers in theoretical population genetics research speciality from 1916–80 through a case study. Analyses the proportion and extent of collaborated papers, averge number of authorship per paper, and collaborative coefficient index of research papers thereby giving an overall perspective of the growth of professionalism in the field. Studies the relation between collaboration, productivity, and funding of research papers in theoretical population genetics. Classifies the total collaborative papers/authors by type of collaboration and studies the trends and shifts in the nature and type of collaborative research over the years.

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Orvosi Hetilap
Authors: Tamás Bödecs, Boldizsár Horváth, Lajos Kovács, Marietta Diffellné Németh, and János Sándor

476 Andersson, L., Sundström-Poromaa, I., Bixo, M.: Point prevalence of psychiatric disorders during the second trimester of pregnancy: A population-based study. Am. J. Obstet

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References Abbad , A. , Cherkaoui , M. , Wahid , N. , El Hadrami , A. and Benchaabane , A. ( 2004 ): Variabilité phénotypique et génétique de trois populations

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Journal of Behavioral Addictions
Authors: Valentin Flaudias, Sylvain Iceta, Oulmann Zerhouni, Rachel F Rodgers, Joël Billieux, Pierre-Michel Llorca, Jordane Boudesseul, Ingrid de Chazeron, Lucia Romo, Pierre Maurage, Ludovic Samalin, Laurent Bègue, Mickael Naassila, Georges Brousse, and Sébastien Guillaume

the vulnerability of these individuals in the context of the COVID-19 lockdown, and preliminary clinical evidence suggests an increase in symptoms in this population ( Fernández-Aranda et al., 2020 ). Notably, since the pandemic began, most

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Orvosi Hetilap
Authors: Erzsébet Feiler, Károly Gombocz, Győző Wrana, Margit Varró, Roland Csécs, and Nasri Alotti

Australian Patient Population. ANZ J. Surg., 2005, 75 , 508–512. Ihle B. U. Validation of EuroSCORE Model in an Australian Patient Population ANZ J. Surg

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populations: palaeobotanical evidence and genetic consequences. New Phytol. 171: 199–221. Beaulieu J. L. A new scenario for the Quaternary history of European beech populations

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Journal of Behavioral Addictions
Authors: Sina Zadra, Gallus Bischof, Bettina Besser, Anja Bischof, Christian Meyer, Ulrich John, and Hans-Jürgen Rumpf

investigating the co-occurrence of IA and personality disorders. The aim of this study was to analyze the associations between personality disorders and IA using a sample derived from the general population with a wide range of ages. It uses an extensive DSM-5

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