1,720,962 research outputs found
Blood Pressure and Lipid Profile in Hypertensive Patients Post the First COVID-19 Lockdown: “Brief Letter for Publication”
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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
Low Awareness of Cardiovascular Risk Factor Among Patients Admitted in Cardiac Rehabilitation Unit
No full textIntroduction: Cardiovascular diseases (CVD) are still the leading cause of death and disability worldwide despite the availability of well-established and effective preventive strategies. Aim: We aim to assess patients awareness of the main modifiable cardiovascular risk factors in a population with recent acute coronary syndrome (ACS) admitted in cardiac rehabilitation unit. Methods: 50 patients with recent ACS have been recruited. We used a 9-items questionnaire about awareness of CV risk factors and eating habits. Results: Many patients underestimate the role of physical activity (PA), cigarette smoking and diabetes as main CV risk factors. Although the importance of good eating habits as cardiovascular protector is well known, only few participants declare a healthy balanced diet. Conclusions: This study revealed low awareness of common CV risk factors among patients with recent ACS. Individual training plans and the use of technological development to improve awareness and adherence are needed especially in high risk population
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
Arterial hypertension in aortic valve stenosis: A critical update
Full text linkAortic stenosis (AS) is a very common valve disease and is associated with high mortality once it becomes symptomatic. Arterial hypertension (HT) has a high prevalence among patients with AS leading to worse left ventricle remodeling and faster degeneration of the valve. HT also interferes with the assessment of the severity of AS, leading to an underestimation of the real degree of stenosis. Treatment of HT in AS has not historically been pursued due to the fear of excess reduction in afterload without a possibility of increasing stroke volume due to the fixed aortic valve, but most recent evidence shows that several drugs are safe and effective in reducing BP in patients with HT and AS. RAAS inhibitors and beta‐blockers provide benefit in selected populations based on their profile of pharmacokinetics and pharmacodynamics. Different drugs, on the other hand, have proved to be unsafe, such as calcium channel blockers, or simply not easy enough to handle to be recommended in clinical practice, such as PDE5i, MRA or sodium nitroprusside. The present review highlights all available studies on HT and AS to guide antihypertensive treatment
Diagnostic accuracy of inferior vena cava evaluation in the diagnosis of acute heart failure among dyspneic patients
No full textAcute dyspnea is one of the main reasons for admission to the Emergency Department (ED). A rapid and accurate diagnosis can be lifesaving for these patients. Particularly, it is important to differentiate between dyspnea due to acute heart failure (AHF) and dyspnea of pulmonary origin. The aim of this study is to evaluate the real accuracy of the evaluation of diameter and collapsibility of IVC for the diagnosis of AHF among dyspneic patients. We analyzed 155 patients admitted for acute dyspnea to the ED of "Maurizio Bufalini" hospital in Cesena (Italy) and "Antonio Cardarelli" hospital in Naples (Italy) from November 2014 to April 2017. All patients underwent ultrasound of inferior vena cava (IVC) examination with a hand-held device in addition to the traditional pathway. Patients were classified into AHF group or non-AHF group according to the current guidelines. The final diagnosis was AHF in 64 patients and dyspnea of non-cardiac origin in 91 patients. Sensibility and specificity of IVC hypo-collapsibility was 75.81% (95% CI 63.26% to 85.78%) and 67.74% (95% CI 57.25% to 77.07%) for the diagnosis of AHF. Sensibility and specificity of IVC dilatation was 69.35% (95% CI 56.35% to 80.44%) and 74.19% (95%CI 64.08% to 82.71%) for the diagnosis of AHF. AUC was 0.718 (0.635-0.801) for IVC hypo-collapsibility, 0.718 (0.634-0.802) for IVC dilatation. Our study demonstrated that the sonographic assessment of IVC diameter and collapsibility is suboptimal to differentiate acute dyspnea due to AHF or other causes in the emergency setting
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