1,721,038 research outputs found
More unequal yet more alike, the changing patterns of family formation, generational mobility and household income inequality in China: a counter-factual analysis
No full textChina’s household income inequality has grown steadily over the last 30 years. While many analyses focus on the effects of policies relating to urban-rural and inland-coastal distinctions, growth in inequality has prevailed on both sides of those respective divides suggesting something more fundamental is at play. Here, certain patterns of family formation and human capital transfer are shown to engender increases in household income inequality measures. A unique data set, linking grandparents, parents and children, yields evidence of structural change toward such patterns over successive cohorts of households. Influenced by such events as the Cultural Revolution, the One Child Policy and the Economic Reforms, people intensified positive assortative matching behaviors and polarizing human capital transitions. Social class designations became less important and educational class designations became more important. A counterfactual analysis verified the impact of these changes on household income inequality in urban China, revealing increasing similarity between cohorts amidst growing inequality
GENETIC AND ANTIGENIC CHARACTERIZATION OF CAEV (CAPRINE ARTHRITIS-ENCEPHALITIS VIRUS) RECOMBINANT TRANSMEMBRANE PROTEIN
No full textThe env gene fragment of an Italian strain of Caprine Arthritis Encephalitis virus (CAEV) coding for the hydrophilic region of transmembrane protein was amplified, cloned and expressed in prokaryotic system as fusion protein with glutathione-S-transferase. Sequence analysis revealed 63 to 66% amino acid homology, when compared with three ovine lentiviruses and 83% when compared with one caprine lentivirus. The recombinant transmembrane protein was efficiently expressed, purified under denaturing conditions and used as antigen in western blotting and ELISA. Sera from clinically diseased goats strongly reacted in western blotting and naturally infected animals seroconverted between 20 and 33 weeks of age. An indirect ELISA performed with this antigen showed improved sensitivity in comparison with agar gel immunodiffusion test. Our results confirm that transmembrane protein is an important immunological marker in CAEV infection and its use as antigen may enhance the validity of serological diagnosis of Caprine Arthritis Encephalitis
On multidimensional poverty rankings of binary attributes
Full text linkWe address the problem of ranking distributions of attributes in terms of poverty, when the attributes are represented by binary variables. To accomplish this task, we identify a suitable notion of “multidimensional poverty line” and characterize axiomatically the Head-Count and the Attribute-Gap poverty rankings, which are the natural counterparts of the most widely used income poverty indices. Finally, we apply our methodology and compare our empirical results with those obtained with some other well-known poverty measures
Studio del genoma di lentivirus ovi-caprini isolati sul campo mediante amplificazione genica (PCR) e southern blotting (SB)
No full textGoing 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
A measurement scale for material deprivation: A model-based approach
No full textThe prevailing practice of defining classes of material deprivation based on the raw sum of a relatively small number of binary items has obvious advantages in terms of communication and ease of use. Do two people with the same raw score always have the same level of deprivation? This paper examines the methodological foundations of the raw score, comparing classical test theory with model-based test theory such as Rasch measurement and item response theories. After discussing the merits and limitations of the different approaches, the paper legitimizes the raw score when the assumptions of the Rasch model are met. Based on the analytical procedure of the Rasch model and using the pre-Covid data from the Survey on Income and Living Conditions, the paper also suggests how to develop a European scale for measuring material deprivation that ensures comparability across European countries
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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