1,721,112 research outputs found
Prevalence of Potential Drug-Supplement Interactions in a Cardiovascular Risk Reduction Population
No full textDietary supplements are regulated differently than prescription drugs. As a result, there is often very little reliable data about safety, effectiveness, or the potential for interactions with drugs. Despite the lack of data, the use of dietary supplements is very common. As many as 69% of patients in the U.S. report using a dietary supplement. In many cases, patients take dietary supplements along with prescription medication. This study was conducted to assess the prevalence of dietary supplement usage and to characterize the risk of potential drug-supplement interactions in a cardiovascular risk reduction population. A review of 55 patient charts revealed that 40 (72%) were taking at least one dietary supplement. The mean number of supplements taken per person was 2.2. The mean number of medications taken by those also taking a dietary supplement was 4.6. Screening for drug-supplement interactions resulted in the identification of 297 potential interactions among this population. Of these, only 2% were considered “major” interactions, 81% were considered “moderate,” and 18% were considered minor. The majority of the interactions identified were pharmacodynamic in nature. These findings suggest that healthcare professionals should ask specific questions about their patient's use of dietary supplements. Additionally, screenings should be conducted to ensure patients are not taking a combination that could result in a serious adverse outcome.ProQuest Traditional Publishing Optionviii, 46 page
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
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