1,721,078 research outputs found
A framework for data-flow distributed processing
No full textA framework for data-flow distributed processing is established through the definition of a data-flow model and a set of language constructs for concurrent programming. The proposed approach is based on the following characteristics: i) the exploitation of parallelism at the operation level leads to the efficient and natural exploitation of parallelism at the program level, and ii) parallelism, communication, nondeterminism and history sensitivity are primitive concepts. The aim of the defined data-flow constructs is to enhance modularity and parallelism of programs. Two structuring levels are introduced, called «modules» and «frames», to permit both symmetric and asymmetric communication. Single assignment and guarded commands are employed inside modules. Examples of tipical programming problems, including shared resources management, are given together with a short account of a distributed data-flow architecture able to support data-flow distributed processing efficiently
Neurobiological Correlates of Psychosocial Deprivation in Children: A Systematic Review of Neuroscientific Contributions
No full textNeurobiological Correlates of Psychosocial Deprivation in Children: A Systematic Review of Neuroscientific Contributions
No full textBackground: Institutionalization from birth offers a unique opportunity to investigate the effects on brain and endocrine system of psychosocial deprivation in early infancy. Nonetheless, a systematic review about institutionalization and biological anomalies does not exist. Objective: The purpose of this paper was to systematize all the studies about biological correlates of early institutionalization. Methods: GoogleScholar, PsycINFO, and PubMed electronic databases were used in order to select English language articles published on this topic. Reference lists of included studies were reviewed to capture additional studies. Only quantitative, peer reviewed studies, conducted on children and youths who had experienced institutional care from birth and assessing neurobiological features were included. Thirty-four studies met inclusion criteria. Results: The studies reported that the experience of institutionalization may lead to reduced brain volume, larger amygdala volume, decreased cortical activity, altered frontal and limbic activity, white matter abnormalities, and irregular hormone levels. These outcomes are similar to those displayed by children who have experienced harmful events. Although the body of literature is conspicuous enough to highlight anomalies in these children’s neurobiology, only few studies specifically address each brain component or function. Conclusions: Adverse early experience can lead to aberrant brain development and functioning. Nevertheless, the comprehension of these neurobiological pathways requires further clarification
Assessing Life Satisfaction Across Cultures: Italian Validation of the Brief Multidimensional Students’ Life Satisfaction Scale (BMSLSS)
No full textI correlati neurobiologici della deprivazione psicosociale nei bambini: una revisione sistematica dei contributi neuroscientifici
No full textAssessing Life Satisfaction Across Cultures: Italian Validation of the Brief Multidimensional Students’ Life Satisfaction Scale (BMSLSS)
No full text
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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