1,721,169 research outputs found
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
Eritrean, Ethiopian, Somali and Sudanese Communities in Western Australia
Full text linkDepression has been identified as a significant global health problem. However, to date, there has been little research into the most appropriate strategies to use in the prevention of depression. There is even less research about the understanding that people of culturally and linguistically diverse backgrounds have of the conditions encompassed by the term ‘depression’, (or more culturally and linguistically specific representations of unhappiness) and of the ways in which these conditions may be prevented.
The Listening to Diverse Voices: multicultural mental health promotion research project, a collaboration between Murdoch University and the East Metropolitan Population Health Unit, funded by Healthway, investigated these issues within a number of minority communities and in consultation with service providers in Perth, Western Australia, during the period 2001-2004. The objectives of the research were to identify cultural differences in understandings and experiences of ‘depression’ and appropriate ways of dealing with such issues.
The research used focus groups and interviews to explore understandings of social and emotional well-being and of ‘depression’ among members of a number of communities in Perth. These included Sudanese, Somali, Eritrean, Ethiopian, Croatian, Bosnian and Chinese communities and also Indigenous Australians. The information in this document however pertains only to the Horn of Africa communities in the study. Service providers too were canvassed for their concerns and experiences. Participants came from a variety of ethnic and class backgrounds, and while some entered Australia under the ‘skilled migrant’ category, many came under the ‘humanitarian program’ and had experienced life in refugee camps in other parts of the world before coming to Australia. Over 200 people participated in the research.
Because of cultural sensitivities, separate focus groups were conducted with men, women and young people for some communities. Within the Sudanese community separate focus groups were conducted with North and South Sudanese and, within the Ethiopian community, separate focus groups were undertaken with Oromo men and women. In the Eritrean community Arabic speaking men and Tigre speaking men participated in separate focus groups. Most focus groups, apart from those with youth, were conducted by bilingual facilitators, in community languages, and were then transcribed verbatim and translated. Some focus groups and all interviews were conducted in English.
It is important to note that the use of such groupings does not imply internal homogeneity of individuals, experiences, perspectives or concerns.
All interviews and focus groups were undertaken using a semi-structured, standardised schedule. Interview and focus group questions were designed to elicit participants’ understandings of mental health, social and emotional well-being, depression, causes of depression and recommendations for appropriate treatments and/or interventions. Interviews and focus groups were taped, transcribed and translated, where necessary, and the transcripts studied for common themes. These themes were then taken back to the communities for comment, and the summaries adapted according to this further feedback. While it is not claimed that the participants are ‘representative’ of the communities of which they are members, the research team feels confident that the issues identified are among the most common concerns of these communities.
The most significant finding was that issues seen by communities as likely to cause emotional (or mental) distress, are social and settlement issues, rather than being biomedical in nature, or being seen as the result of pre-arrival trauma (although this was one factor identified). The result of this is that while some of the issues may be dealt with from within a ‘population health’ perspective and organisation, most are outside population health parameters. Therefore this information is being provided to a wider audience in the hope that other government departments, non-government organisations and individuals will also take action to address some of these issues.
This document contains brief summaries of the various issues identified by the Horn of Africa communities as leading to what Westerners might call ‘depression’ and their suggestions for solutions. Our commitment to hearing the voices of these communities themselves is reflected in our use of direct quotations taken from the interviews and focus groups. We also provide profiles of the communities, including historical and cultural information and a brief history of arrival in Western Australia. This document provides information about the new and emerging communities from the Horn of Africa. Horn of Africa. The opinions expressed are from research participants and do not necessarily represent the views of the authors. For information about the findings from all other communities, see the East Metropolitan Population Health Unit Website: http://www.health.wa.gov.au/home/ or Murdoch University Website: http://researchrepository.murdoch.edu.au
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
Establishment and characterization of two human miR-34a knockout cell lines, HeLa and HEK293T, applying the CRISPR/Cas9 system.
Full text linkMicro-RNAs (miRNAs) are small non-coding and regulatory RNAs of about 21 nucleotides that act as regulators of gene expression; generally, they have an inhibitory effect by either blocking protein translation or promoting mRNA degradation. These small RNAs have an important role both in physiological events like cell proliferation, differentiation, and development as well as in pathological conditions such as cancer and neurodegenerative diseases. One of the most studied miRNAs in cancer is the miR-34a that inhibits the expression of different pro-tumorigenic genes. In this study, we characterized HeLa and HEK293T miR-34a Knock-Out (KO) cell clones that were produced by using the CRISPR/Cas9 technology, in terms of proliferation rate, expression of already known and predicted targets, through quantitative PCR (qPCR), and Western blot analyzes. The results of the analysis of cell lines silenced with miR-34a indicate that: a) miR-34a is not indispensable for the control of cell proliferation; b) miR-34a may be involved in different signaling pathways and act differently according to cell type, suggesting a tissue-specific role of miR-34a; c) ONECUT2, a transcription factor that stimulates the expression of genes involved in the differentiation of melanocytes and hepatocytes, could be a novel target of miR-34a. Future functional studies on the pathways regulated by this transcription factor in miR-34a KO clones will help to clarify the role of miR-34a in cell differentiation and transformation
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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