1,720,974 research outputs found
Supplemental Material - Infrastructure and the Energy Use of Human Polities
No full textSupplemental Material for Infrastructure and the Energy Use of Human Polities by Jacob Freeman, Jacopo A. Baggio, Lux Miranda, and John M. Anderies in Cross-Cultural Research.</p
The Socioecology of Territory Size and a Work-Around Hypothesis for the Adoption of Farming
Full text linkThis paper combines theory from ecology and anthropology to investigate variation in the territory sizes of subsistence oriented agricultural societies. The results indicate that population and the dependence of individuals within a society on “wild” foods partly determine the territory sizes of agricultural societies. In contrast, the productivity of an agroecosystem is not an important determinant of territory size. A comparison of the population-territory size scaling dynamics of agricultural societies and human foragers indicates that foragers and farmers face the same constraints on their ability to expand their territory and intensify their use of resources within a territory. However, the higher density of food in an agroecosystem allows farmers, on average, to live at much higher population densities than human foragers. These macroecological patterns are consistent with a “work-around hypothesis” for the adoption of farming. This hypothesis is that as residential groups of foragers increase in size, farming can sometimes better reduce the tension between an individual’s autonomy over resources and the need for social groups to function to provide public goods like defense and information
Mean coefficients, standard errors and relative importance (∑<i>w</i><sub><i>i</i></sub> for each variable) of the explanatory variables in the 99% confidence set of models (n = 61).
No full textMean coefficients, standard errors and relative importance (∑wi for each variable) of the explanatory variables in the 99% confidence set of models (n = 61).</p
A summary of model statistics for the 99% confidence set of regression models.
No full textF = the percent of diet from wild foods; N = population, P = actual evapotranspiration.</p
Model averaged population coefficients and intercepts from regression Eqs 7 and 9 and the 95% confidence interval for each coefficient or intercept shown as error bars for each subsistence type.
No full textModel averaged population coefficients and intercepts from regression Eqs 7 and 9 and the 95% confidence interval for each coefficient or intercept shown as error bars for each subsistence type.</p
A comparison of the group home-range and population size regression lines for hunter-gatherer and agricultural societies.
No full textdots = hunter-gatherer societies, and triangles = agricultural societies. The dashed line is an OLS regression line for hunter-gatherers, the solid line is the same for agriculturalists.</p
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
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