1,720,959 research outputs found
Young people in Southern Italy and the phenomenon of immigration: what is their perception?
No full textIn Italy, the issues of immigration, integration and perception of the phenomenon are extremely topical and have prompted a rather heated debate. Lacking official data on the citizens’ “sentiment”, a survey was carried out through a questionnaire addressed to about 1,200 students attending the Apulian high schools. The aims are mainly two: to ascertain possible misperceptions or information gaps and to better understand young people’s opinions about the positive or negative effects of the immigrants’ presence in our communities, and their behaviour to facilitate the integration process. Some relevant misperceptions are highlighted, and the respondents’ perceptions are detected by means of exploratory analyses, heterogeneity indexes and multiple correspondence analysis
Evaluating people's awareness about climate changes and environmental issues: A case study
No full textIn the last decade, environmental issues have become a major topic of public opinion. People have begun to develop increasing environmental awareness and positive attitudes toward ecological matters. In particular, young people have begun to actively participate in environmental challenges by organizing green movements and engaging with policymakers. In this perspective, this study explores two main aspects: 1) awareness of the potential impacts of climate change and of environmental issues in each individual's daily life, and 2) the relationship between attitudes and pro-environmental actions. To this end, we analyse qualitative data obtained from a tailored online survey involving either students from a selected group of Italian High schools or volunteer respondents from the students' acquaintances. A total of 1834 responses are analysed using statistical tools to assess the multiple objectives of the survey. We distinguish between young and adult respondents and examine the relationships between awareness, personal experience, and risk perception in the two groups. We then propose a Multiple Correspondence Analysis that focuses on youth attitudes to examine the factors that influence their propensity to environmental issues and to determine the impact of global green movements on the onset or acceleration of their environmental awareness. Although the results show a more pessimistic view of the threats posed by environmental crises, our results highlight that younger generations have a deeper awareness of environmental conditions and are committed to environmental recovery by adopting “good ecological practices” and “active ecological behaviors.
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
Tratamiento de efluentes radiactivos procedentes del reactor nuclear RTS-1 y evaluación del impacto radiológico debido al vertido de las aguas tratadas
Full text link[EN] The life of technological systems possessing dangerous as nuclear power plants must end with a formal declaration of the final (closing) always having those characteristics and conditioning products because of the danger (decommissioning). Neutralization and careful and safe from hazardous elements in the nuclear power plant to be shut removal is essential. This acquisition is achieved in stages that progressively reduce the radiological hazard at the site. Radioactive effluents are often the more committed component of these procedures and, therefore, it is necessary to have systems to collect and concentrate the contaminants in order to facilitate the purification process prior to its discharge to the environment.
In this work the radiological impact and effective dose would receive three population groups (infants, children and adults), due to the discharge of water from effluent treatment Experimental Reactor Thermal "RTS-1 Galileo Galilei" is evaluated. After determining the concentration of radioactive nuclides present in such effluents and activity, has developed more suitable for these water purification treatment and allowing for the discharge authorization by the Authority of Defense.
It has applied a one-dimensional mathematical model based on transport advection-dispersion equation to simulate the behavior of pollutants in rivers. The proposed model employs the GENII.2.10 code developed by the Environmental Protection Agency (EPA) which simulates exposure pathways for these contaminants can reach subjects exposed, assuming extra-conservative conditions in the middle receptor. Thus, we have obtained the doses received by the population through external exposure, exposure by inhalation and ingestion of plant and animal products; and compared the doses obtained with the limits established by law.[ES] La vida de los sistemas tecnológicos que son potencialmente peligrosos, como las centrales nucleares, debe concluir con una declaración formal de su final (clausura), siempre después de haber acondicionado aquellas características y productos causa del peligro (desmantelamiento). Es esencial la neutralización y retirada cuidadosa y sin riesgo de los elementos peligrosos contenidos en la central nuclear que se desea clausurar. Dicha operación se realiza por etapas, que reduzcan progresivamente el riesgo radiológico en el emplazamiento. Los efluentes radiactivos suelen constituir el componente más comprometido de estos procedimientos y, por lo tanto, es necesario disponer de sistemas para colectar y concentrar los contaminantes con el fin de facilitar el proceso de purificación previo a su descarga al medio ambiente.
En este trabajo se evalúa el impacto radiológico y la dosis efectiva que recibirían tres grupos de población (lactantes, niños y adultos), debido al vertido de agua proveniente del tratamiento de efluentes del Reactor Térmico Experimental “RTS-1 Galileo Galilei”. Una vez determinada la concentración de nucleidos radiactivos presente en dichos efluentes y su actividad, se ha desarrollado el tratamiento de purificación más indicado para estas aguas y que permita obtener la autorización de descarga por parte de la Autoridad de Defensa.
Se ha aplicado un modelo matemático unidimensional de transporte basado en la ecuación de advección-dispersión para simular el comportamiento de contaminantes en ríos en casos de fuente continua. El modelo propuesto emplea el código GENII.2.10, desarrollado por la Agencia de Protección Ambiental de Estados Unidos (EPA), el cual permite simular las vías de exposición para las que estos contaminantes puedan llegar a los sujetos expuestos, suponiendo condiciones extra-conservadoras en el medio receptor. De esta forma, se han obtenido las dosis que recibiría la población a través de la exposición externa, la exposición por inhalación, e ingestión de productos vegetales y animales. Así mismo, se han comparado las dosis obtenidas con los límites establecidos por leyLabarile, A.;Labarile, A. (2015). Tratamiento de efluentes radiactivos procedentes del reactor nuclear RTS-1 y evaluación del impacto radiológico debido al vertido de las aguas tratadas. Universitat Politècnica de València. https://riunet.upv.es/handle/10251/65722Archivo delegad
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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