595 research outputs found
Anyone can edit, not everyone does: Wikipedia and the gender gap
Feminist STS has long established that scienceâs provenance as a male domain continues to define what counts as knowledge and expertise. Wikipedia, arguably one of the most powerful sources of information today, was initially lauded as providing the opportunity to rebuild knowledge institutions by providing greater representation of multiple groups. However, less than ten percent of Wikipedia editors are women. At one level, this imbalance in contributions and therefore content is yet another case of the masculine culture of technoscience. This is an important argument and, in this article, we examine the empirical research that highlights these issues. Our main objective, however, is to extend current accounts by demonstrating that Wikipediaâs infrastructure introduces new and less visible sources of gender disparity. In sum, our aim here is to present a consolidated analysis of the gendering of Wikipedia
Africa and the digital information commons : an overview
Digital technologies and global electronic networks present unparalleled opportunities for international knowledge
sharing and collaboration. But these same technologies and networks can also be used by authors in ways that significantly limit
access and sharing for the purposes of education, innovation, and development. Through the efforts of librarians, archivists,
academics and activists, vast new reserves of information and knowledge are being made available for free public consumption,
and even adaptation, on the Internet. At the same time, however, electronic networks and digital technologies are being used
to limit non-commercial access to some learning materials. For example, large educational publishers charge high subscription
fees to universities for access to databases, with restrictions on use that are often more prohibitive than in the offline, paperbased
environment.
This fundamental schism present in the digital, globally-networked era â between the building of an âinformation commonsâ
on the one hand, and the privatisation of knowledge on the other â is generating a variety of dynamic activist responses,
including the free/libre open source software (FLOSS) movement, the âopen accessâ movement in scholarly communication, and
the âopen contentâ approach to online sharing and collaboration among authors. The open access movement revolves mostly
around the practice of academics making their research outputs and writings freely available on the Internet, either through open
access online journals or online institutional repositories (archives). The open content movement is in some cases even broader
than open access, encouraging online adaptation of materials by users, with the Wikipedia collaborative encyclopedia being
perhaps the best-known such project. Another important open content initiative is the Creative Commons (cc) licensing system,
which allows authors to adopt a âsome rights reservedâ approach when publishing their materials online. Under the terms of a
cc licence, users are permitted unlimited copying and distribution of materials, and in some cases, are permitted to even adapt
and/or derive commercial benefit from the materials. Open access and open content initiatives aim not to eliminate copyright in
the online environment but rather to ensure that copyright does not restrict the potential of new technology to overcome barriers
to access and innovation.
The debates around the information commons and the restrictive practices of copyright rights-holders in the online environment
are of particular relevance to the developing world and the African continent. Much of the worldâs copyrighted material is owned
by developed-world multinationals, leaving developing nations as the âpayersâ or consumers of knowledge and culture, and the
developed world as the âpayeesâ in much of the flow of monetary value derived from copyrighted materials. This article outlines
the global information commons debates and players, and then focuses on efforts to maximise the potential benefits of digital
networks for the developing world, and in particular Africa
Perceptions of Multicultural Training in Predoctoral Internship Programs: A Survey of Interns and Training Directors
Multicultural training at internship sites is a critical component in the preparation of doctoral-level psychologists, so the quality of this training is of the utmost importance. In the following study, the authors examine multicultural training from the perspective of predoctoral interns and training directors at counseling center sites that offer a major or minor rotation in multicultural therapy. Results suggest that perspectives vary between interns and training directors and that there is a great difference in the type of criteria used by each site as evidence of a major or minor rotation. The need for more standardized criteria to define major and minor rotations and suggestions for the Association of Psychology Postdoctoral and Internship Centers, internship training directors, and prospective interns are discussed
Comprehensive HIV care and Anti-Retroviral Therapy in a conflict setting-outcomes, experiences, and lessons learned from Bukavu, Democratic Republic of Congo
2006 AIDS Conference in Toront
Long-term safety and efficacy of lowering low-density lipoprotein cholesterol with statin therapy : 20-year follow-up of West of Scotland Coronary Prevention Study
The study was supported by a grant from Merck, Sharp & Dohme, Kenilworth, NJ, as part of an Investigator Initiated Program.BACKGROUND Extended follow-up of statin-based low-density lipoprotein cholesterol lowering trials improves the understanding of statin safety and efficacy. Examining cumulative cardiovascular events (total burden of disease) gives a better appreciation of the clinical value of statins. This article evaluates the long-term impact of therapy on mortality and cumulative morbidity in a high-risk cohort of men. METHODS AND RESULTS The West of Scotland Coronary Prevention Study was a primary prevention trial in 45- to 64-year-old men with high low-density lipoprotein cholesterol. A total of 6595 men were randomized to receive pravastatin 40 mg once daily or placebo for an average of 4.9 years. Subsequent linkage to electronic health records permitted analysis of major incident events over 20 years. Post trial statin use was recorded for 5 years after the trial but not for the last 10 years. Men allocated to pravastatin had reduced all-cause mortality (hazard ratio, 0.87; 95% confidence interval, 0.80-0.94; P=0.0007), attributable mainly to a 21% decrease in cardiovascular death (hazard ratio, 0.79; 95% confidence interval, 0.69-0.90; P=0.0004). There was no difference in noncardiovascular or cancer death rates between groups. Cumulative hospitalization event rates were lower in the statin-treated arm: by 18% for any coronary event (P=0.002), by 24% for myocardial infarction (P=0.01), and by 35% for heart failure (P=0.002). There were no significant differences between groups in hospitalization for noncardiovascular causes. CONCLUSION Statin treatment for 5 years was associated with a legacy benefit, with improved survival and a substantial reduction in cardiovascular disease outcomes over a 20-year period, supporting the wider adoption of primary prevention strategies.Publisher PDFPeer reviewe
African digital commons : a participant's Guide, 2005; a conceptual map of the people, projects and processes that contribute to the development of shared, networked knowledge across the African continent
The Engagement Model of Person-Environment Interaction
This article focuses on growth-promoting aspects in the environment, and the authors propose a strength-based, dynamic model of person-environment interaction. The authors begin by briefly discussing the typical recognition of contextual variables in models that rely on the concept of person-environment fit. This is followed by a review of recent approaches to incorporating positive environmental factors in conceptualizations of human functioning. These approaches lead to an alternative model of person-environment interaction in which the engagement construct (i.e., the quality of a person-environment relationship determined by the extent to which negotiation, participation, and evaluation processes occur during the interaction) replaces the static notion of fit. Finally, the authors outline recommendations for overcoming environmental neglect in research, practice, and training
Diagnosis or prognosis? : An umbrella review of mid-trimester cervical length and spontaneous preterm birth
Funding Information: This work is funded by an Australian National Health and Medical Research Council project grant (GNT1146590). The funder was not involved in conducting research or writing the paper. Funding Information: BWM is supported by an NHMRC Practitioner Fellowship (GNT1082548) and reports a consultancy for ObsEva, Merck Merck KGaA, and Guerbet. Completed disclosure of interests form available to view online as supporting information. Funding Information: An earlier, abbreviated form of this manuscript was presented as a virtual free communication at the Royal Australian and New Zealand College of Obstetricians and Gynaecologistsâ Annual Scientific Meeting 2021 (Monday 15 February, online-only event). Open access publishing facilitated by Monash University, as part of the Wiley - Monash University agreement via the Council of Australian University Librarians. Publisher Copyright: © 2023 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.Peer reviewedPublisher PD
Randomized trial comparing proactive, high-dose versus reactive, low-dose intravenous iron supplementation in hemodialysis (PIVOTAL) : Study design and baseline data
Background: Intravenous (IV) iron supplementation is a standard maintenance treatment for hemodialysis (HD) patients, but the optimum dosing regimen is unknown. Methods: PIVOTAL (Proactive IV irOn Therapy in hemodiALysis patients) is a multicenter, open-label, blinded endpoint, randomized controlled (PROBE) trial. Incident HD adults with a serum ferritin 700 ÎŒg/L and/or TSAT â„40%) or a reactive, low-dose IV iron arm (iron sucrose administered if ferritin <200 ÎŒg/L or TSAT < 20%). We hypothesized that proactive, high-dose IV iron would be noninferior to reactive, low-dose IV iron for the primary outcome of first occurrence of nonfatal myocardial infarction (MI), nonfatal stroke, hospitalization for heart failure or death from any cause. If noninferiority is confirmed with a noninferiority limit of 1.25 for the hazard ratio of the proactive strategy relative to the reactive strategy, a test for superiority will be carried out. Secondary outcomes include infection-related endpoints, ESA dose requirements, and quality-of-life measures. As an event-driven trial, the study will continue until at least 631 primary outcome events have accrued, but the expected duration of follow-up is 2-4 years. Results: Of the 2,589 patients screened across 50 UK sites, 2,141 (83%) were randomized. At baseline, 65.3% were male, the median age was 65 years, and 79% were white. According to eligibility criteria, all patients were on ESA at screening. Prior stroke and MI were present in 8 and 9% of the cohort, respectively, and 44% of patients had diabetes at baseline. Baseline data for the randomized cohort were generally concordant with recent data from the UK Renal Registry. Conclusions: PIVOTAL will provide important information about the optimum dosing of IV iron in HD patients representative of usual clinical practice. Trial Registration: EudraCT number: 2013-002267-25.Peer reviewedFinal Published versio
Evaluating the Skeletal Chemistry of Mytilus Californianus as a Temperature Proxy: Effects of Microenvironment and Ontogeny
Molluscan shell chemistry may provide an important archive of mean annual temperature (MAT) and mean annual range in temperature (MART), but such direct temperature interpretations may be confounded by biologic, metabolic, or kinetic factors. To explore this potential archive, we outplanted variously sized specimens of the common mussel Mytilus californianus at relatively low and high intertidal positions in San Diego, California, for 382 days with in situ recording of ambient temperature and periodic sampling of water chemistry. The prismatic calcite layer of eight variously sized specimens from each intertidal position were then serially microsampled and geochemically analyzed. Average intraspecimen delta(18)O values significantly covaried only with temperature, whereas Mg/Ca values showed a strong and significant positive correlation with growth rate. To assess intra-annual variations in shell chemistry as proxy for MART, each specimen\u27s delta(18)O record was ordinated in the time domain and compared to the predicted isotopic equilibrium [delta]18O values from environmental data. Observed specimen values were significantly correlated with predicted equilibrium values, but show 18O enrichments of 0.2 to 0.5 parts per thousand. In contrast, Mg/Ca values were poorly correlated with temperature due to significant positive relationships with growth rate and intertidal position. Within the extrapallial fluid, pH, carbonate solution chemistry, Rayleigh fractionation and/or an undetermined source of disequilibrium may cause [delta]18O values to deviate from predicted equilibrium precipitation for ambient seawater. Despite this consistent 18O enrichment, intraskeletal variations in [delta]18O values readily characterize the instrumental MAT and 5-95% MART values, making M. californianus a valuable source of information for paleoceanographic reconstructions
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