1,721,301 research outputs found
Treatment of peritoneal dialysis-associated peritonitis: a systematic review of randomized controlled trials (vol 50, pg 967, 2007)
Effetto del group processing su apprendimento e percezione di supporto sociale e accademico in gruppi di cooperative learning inesperti
Influence of Group Processing on Achievement and Perception of Social and Academic Support in Elementary Inexperienced Cooperative Learning Groups
Sixty-one elementary school students who had never participated in cooperative learning lessons before were included in this study. Students were randomly assigned to the conditions of cooperative learning with and without group processing and participated to 5 instructional sessions during a period of approximately 15 instructional days. Results on achievement show that by the end of the study students as- signed to group processing condition achieved higher than did students assigned to no processing condition. Results on perception of peer academic and personal support and teacher academic and personal support do not show significant differ- ences between the experimental groups
Author reply
Health data linkage in Australia remains challenging1 as reflected in our recent experience of multi‐jurisdictional data linkage. We welcome the Population Health Research Network (PHRN) collaborative's initiatives in establishing a streamlined and unified application process in multi‐jurisdictional data linkage projects, and we fully support their vision. We acknowledge the concerns raised by Flack and Smith2 and take this opportunity to elaborate.Full Tex
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
How to design a randomized controlled trial
Randomized controlled trials are the ideal study design to evaluate the effectiveness of health-care interventions. The conduct of a clinical trial is a collaborative effort between participants, investigators and a range of health-care professionals involved both centrally and locally in the coordination and execution of the trial. In this article, the key steps that are required to design a randomized controlled trial are summarized. Randomized controlled trials are the ideal study design to answer clinical questions about health-care interventions. This article describes the steps required to design a randomized controlled trial
Variations on the Author
“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
The Effects of Task and Resource Interdependence on Achievement and Social Support: An Exploratory Study of Italian Children
The relative efficacy of positive task interdependence, positive resource interdependence, and individualistic learning were compared with achievement and academic and personal social support. The authors randomly assigned to conditions 66 7th-grade Italian students with no previous experience in cooperative learning. They participated in 6 90-min instructional sessions dealing with the dangers of smoking, alcohol, and drugs. The results indicated that students assigned to the task-interdependence and resource-interdependence conditions achieved higher and perceived greater peer academic support than did students working individually. Students in the resource-interdependence condition showed a higher perception of peer personal support than students assigned to the other conditions
Treatment for peritoneal dialysis-associated peritonitis
Background: Peritonitis is a common complication of peritoneal dialysis (PD) and is associated with significant morbidity. Adequate treatment is essential to reduce morbidity and recurrence. Objectives: To evaluate the benefits and harms of treatments for PD-associated peritonitis. Search strategy: We searched the Cochrane Renal Group's specialised register, the Cochrane Central Register of Controlled Trials (CENTRAL, in The Cochrane Library), MEDLINE, EMBASE and reference lists without language restriction. Date of search: February 2005 Selection criteria: All randomised controlled trials (RCTs) and quasi-RCTs assessing the treatment of peritonitis in peritoneal dialysis patients (adults and children) evaluating: administration of an antibiotic(s) by different routes (e.g. oral, intraperitoneal, intravenous); dose of an antibiotic agent(s); different schedules of administration of antimicrobial agents; comparisons of different regimens of antimicrobial agents; any other intervention including fibrinolytic agents, peritoneal lavage and early catheter removal were included. Data collection and analysis: Two authors extracted data on study quality and outcomes. Statistical analyses were performed using the random effects model and the dichotomous results were expressed as relative risk (RR) with 95% confidence intervals (CI) and continuous outcomes as mean difference (WMD) with 95% CI. Main results: We identified 36 studies (2089 patients): antimicrobial agents (30); urokinase (4), peritoneal lavage (1) intraperitoneal (IP) immunoglobulin (1). No superior antibiotic agent or combination of agents were identified. Primary response and relapse rates did not differ between IP glycopeptide-based regimens compared to first generation cephalosporin regimens, although glycopeptide regimens were more likely to achieve a complete cure (3 studies, 370 episodes: RR 1.66, 95% CI 1.01 to 3.58). For relapsing or persistent peritonitis, simultaneous catheter removal/replacement was superior to urokinase at reducing treatment failure rates (1 study, 37 patients: RR 2.35, 95% CI 1.13 to 4.91). Continuous IP and intermittent IP antibiotic dosing had similar treatment failure and relapse rates. IP antibiotics were superior to IV antibiotics in reducing treatment failure (1 study, 75 patients: RR 3.52, 95% CI 1.26 to 9.81). The methodological quality of most included studies was suboptimal and outcome definitions were often inconsistent. There were no RCTs regarding duration of antibiotics or timing of catheter removal. Authors' conclusions: Based on one study, IP administration of antibiotics is superior to IV dosing for treating PD peritonitis. Intermittent and continuous dosing of antibiotics are equally efficacious. There is no role shown for routine peritoneal lavage or use of urokinase. No interventions were found to be associated with significant harm. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd
- …
