1,720,956 research outputs found
Demographic revolution in developing countries with a special regards to Africa and Zimbabwe
No full textThe demographic revolution in developing countries and Africa with special regards to Zimbabwe Abstract This dissertation aimed to examine the demographic revolution in developing countries, Africa and Zimbabwe. The decline of mortality and fertility everywhere in the world demonstrates the importance of the demographic revolution as a global process. While this universality was central to classic revolution theory, for many decades, it was questioned by demographers because fertility and mortality in Africa did not seem to follow the expected pathway. In sub-Saharan Africa the demographic revolution has been characterised by lagging, discontinuation and is occurring at a faster pace against low levels of socioeconomic development than observed in Europe, which has consequences for population dynamics. Questions have emerged if Africa is indeed different and a homogenous continent regarding demographic processes? However, empirical studies that have explored the unique demographic revolution starting from developing countries, Africa and Zimbabwe are lacking. The first part of the thesis on developing countries showed variations in the reaction of fertility to mortality decrease with historically small gaps and extended gaps in more recent revolutions, plus the much faster decrease in vital rates in many..
Demografická revoluce v rozvojových zemích se zvláštním zaměření na Afriku a Zimbabwe
Full text linkDemografická revoluce v rozvojových zemích se zvláštním zaměření na Afriku a Zimbabwe Abstrakt Cílem této disertační práce bylo popsat a analyzovat proces demografického přechodu v rozvojových zemích, Africe a v Zimbabwe. Na důležitost demografické revoluce jakožto globálního procesu ukazuje výrazný celosvětový pokles intensity úmrtnosti a plodnosti. Zatímco tato univerzalita byla ústředním bodem klasické revoluční teorie, demografové ji po mnoho desetiletí zpochybňovali, protože se zdálo, že vývoj plodnosti a úmrtnosti v Africe nejde předpokládanou cestou. V sub-saharské Africe se demografická revoluce vyznačuje zaostáváním a diskontinuitou vývoje. Navzdory nízké úrovni socioekonomického vývoje však sám proces změn v celém regionu probíhá rychlejším tempem, než tomu bylo původně v Evropě, což výrazně ovlivňuje jeho výslednou populační dynamiku. Vyvstává tudíž otázka, zda Afrika je s ohledem na demografický vývoj opravdu jiná a zda se z hlediska demografického přechodu opravdu jedná o homogenní kontinent? Nicméně empirické studie, které zkoumají tento jedinečný proces probíhající aktuálně ve většině zemí Afriky a Zimbabwe, chybí. První část práce věnovaná sledovanému procesu v rozvojových zemích ukázala na rozdíly v reakcích plodnosti na pokles úmrtnost. Charakteristickým rysem později započatých přechodů...The demographic revolution in developing countries and Africa with special regards to Zimbabwe Abstract This dissertation aimed to examine the demographic revolution in developing countries, Africa and Zimbabwe. The decline of mortality and fertility everywhere in the world demonstrates the importance of the demographic revolution as a global process. While this universality was central to classic revolution theory, for many decades, it was questioned by demographers because fertility and mortality in Africa did not seem to follow the expected pathway. In sub-Saharan Africa the demographic revolution has been characterised by lagging, discontinuation and is occurring at a faster pace against low levels of socioeconomic development than observed in Europe, which has consequences for population dynamics. Questions have emerged if Africa is indeed different and a homogenous continent regarding demographic processes? However, empirical studies that have explored the unique demographic revolution starting from developing countries, Africa and Zimbabwe are lacking. The first part of the thesis on developing countries showed variations in the reaction of fertility to mortality decrease with historically small gaps and extended gaps in more recent revolutions, plus the much faster decrease in vital rates in many...Katedra demografie a geodemografieDepartment of Demography and GeodemographyPřírodovědecká fakultaFaculty of Scienc
The fertility revolution in Zimbabwe with special regards to proximate determinants of fertility
No full textThe role of proximate determinants in moderating fertility decline is well documented in developing countries. In Zimbabwe, however, there is a limited understanding of the role of proximate determinants on fertility levels and trends. This study aimed to examine the role of proximate determinants of fertility (namely marriages, postpartum infecundity and contraception) using the Bongaarts proximate determinants model. The impact of these determinants is studied on a sample of married women aged 15-49 years’ and corresponding cross-sectional data obtained through the six consecutive Zimbabwe Demographic Health Surveys (ZDHSs) hold in 1988, 1994, 1999, 2005 and 2015. The results reveal that the overall fertility declined from 5.4, 3.8 and 4.0 children per woman observed among 1988, 1999 and 2015 ZDHSs, respectively. This change was caused by the contraceptive inhibitive effect, which correspondingly increased from 3.00 to 4.65 and 6.45 children per woman. The fertility stalling observed in 1999 and after that is caused by postpartum infecundity and marital fertility inhibition which decreased with time. Moreover, contraceptive inhibition effect increased with education, wealth quintiles, and urban residence. In contrast, marital and postpartum infecundity fertility inhibition effects inversely correlate with education, wealth quintiles, and the place of residence. Therefore, to foster further fertility decline to replacement level, policies should promote contraceptive adoption, more extended breastfeeding periods and delay entry into early marriages. Furthermore, women empowerment, especially the promotion of female education to higher education and female employment, could be useful tools to further fertility decline.18219
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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