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.
) (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
Authors:B. Gupta, Suresh Kumar, and C. Karisiddappa
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.
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
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