WorldWideScience

Sample records for peering content delivery

  1. Social video content delivery

    CERN Document Server

    Wang, Zhi; Zhu, Wenwu

    2016-01-01

    This brief presents new architecture and strategies for distribution of social video content. A primary framework for socially-aware video delivery and a thorough overview of the possible approaches is provided. The book identifies the unique characteristics of socially-aware video access and social content propagation, revealing the design and integration of individual modules that are aimed at enhancing user experience in the social network context. The change in video content generation, propagation, and consumption for online social networks, has significantly challenged the traditional video delivery paradigm. Given the massive amount of user-generated content shared in online social networks, users are now engaged as active participants in the social ecosystem rather than as passive receivers of media content. This revolution is being driven further by the deep penetration of 3G/4G wireless networks and smart mobile devices that are seamlessly integrated with online social networking and media-sharing s...

  2. Peering Strategic Game Models for Interdependent ISPs in Content Centric Internet

    Directory of Open Access Journals (Sweden)

    Jia Zhao

    2013-01-01

    Full Text Available Emergent content-oriented networks prompt Internet service providers (ISPs to evolve and take major responsibility for content delivery. Numerous content items and varying content popularities motivate interdependence between peering ISPs to elaborate their content caching and sharing strategies. In this paper, we propose the concept of peering for content exchange between interdependent ISPs in content centric Internet to minimize content delivery cost by a proper peering strategy. We model four peering strategic games to formulate four types of peering relationships between ISPs who are characterized by varying degrees of cooperative willingness from egoism to altruism and interconnected as profit-individuals or profit-coalition. Simulation results show the price of anarchy (PoA and communication cost in the four games to validate that ISPs should decide their peering strategies by balancing intradomain content demand and interdomain peering relations for an optimal cost of content delivery.

  3. Peering Strategic Game Models for Interdependent ISPs in Content Centric Internet

    Science.gov (United States)

    Guan, Jianfeng; Xu, Changqiao; Su, Wei; Zhang, Hongke

    2013-01-01

    Emergent content-oriented networks prompt Internet service providers (ISPs) to evolve and take major responsibility for content delivery. Numerous content items and varying content popularities motivate interdependence between peering ISPs to elaborate their content caching and sharing strategies. In this paper, we propose the concept of peering for content exchange between interdependent ISPs in content centric Internet to minimize content delivery cost by a proper peering strategy. We model four peering strategic games to formulate four types of peering relationships between ISPs who are characterized by varying degrees of cooperative willingness from egoism to altruism and interconnected as profit-individuals or profit-coalition. Simulation results show the price of anarchy (PoA) and communication cost in the four games to validate that ISPs should decide their peering strategies by balancing intradomain content demand and interdomain peering relations for an optimal cost of content delivery. PMID:24381517

  4. Give-and-take based peer-to-peer content distribution networks

    Indian Academy of Sciences (India)

    Compared to traditional content distribution schemes, peer- to-peer networks ... are shared among users who desire to download files. In a peer-to-peer ..... randomly generated data points, with 300 segments and 200 peers. From the figure ...

  5. Peer-Assisted Content Distribution with Random Linear Network Coding

    DEFF Research Database (Denmark)

    Hundebøll, Martin; Ledet-Pedersen, Jeppe; Sluyterman, Georg

    2014-01-01

    Peer-to-peer networks constitute a widely used, cost-effective and scalable technology to distribute bandwidth-intensive content. The technology forms a great platform to build distributed cloud storage without the need of a central provider. However, the majority of todays peer-to-peer systems...

  6. West Virginia Peer Exchange : Streamlining Highway Safety Improvement Program Project Delivery - An RSPCB Peer Exchange

    Science.gov (United States)

    2014-09-01

    The West Virginia Division of Highways (WV DOH) hosted a Peer Exchange to share information and experiences for streamlining Highway Safety Improvement Program (HSIP) project delivery. The event was held September 23 to 24, 2014 in Charleston, West V...

  7. Green: Towards a Pollution-Free Peer-to-Peer Content Sharing Service

    OpenAIRE

    Chen, Ruichuan; Lua, Eng Keong; Cai, Zhuhua; Crowcroft, Jon; Chen, Zhong

    2011-01-01

    Peer-to-Peer (P2P) content sharing systems are susceptible to the content pollution attack, in which attackers aggressively inject polluted contents into the systems to reduce the availability of authentic contents, thus decreasing the confidence of participating users. In this paper, we design a pollution-free P2P content sharing system, Green, by exploiting the inherent content-based information and the social-based reputation. In Green, a content provider (i.e., creator or sharer) publishe...

  8. Focusing on Content: Discourse in L2 Peer Review Groups

    Science.gov (United States)

    Vorobel, Oksana; Kim, Deoksoon

    2014-01-01

    Recent studies on peer review groups in second language classes have focused on various topics, including collaboration (Carr, 2008) and the effect of peer review versus teacher feedback on students' writing (Zhang, 1995). One area that has received little attention is the content of students' speech during peer review. This longitudinal case…

  9. The Impact of Peer Mentoring on Marketing Content Mastery

    Science.gov (United States)

    Metcalf, Lynn E.; Neill, Stern; Simon, Lisa R.; Dobson, Sharon; Davis, Brennan

    2016-01-01

    This article describes and assesses a course design that uses peer mentors to facilitate a collaborative, hands-on learning experience in an introductory marketing course. Results demonstrate that peer mentoring increased content mastery and had a positive effect on students' perceptions of the learning experience. Peer marketing mentors, along…

  10. A multi-tiered architecture for content retrieval in mobile peer-to-peer networks.

    Science.gov (United States)

    2012-01-01

    In this paper, we address content retrieval in Mobile Peer-to-Peer (P2P) Networks. We design a multi-tiered architecture for content : retrieval, where at Tier 1, we design a protocol for content similarity governed by a parameter that trades accu...

  11. Analysis, Retrieval and Delivery of Multimedia Content

    CERN Document Server

    Cavallaro, Andrea; Leonardi, Riccardo; Migliorati, Pierangelo

    2013-01-01

    Covering some of the most cutting-edge research on the delivery and retrieval of interactive multimedia content, this volume of specially chosen contributions provides the most updated perspective on one of the hottest contemporary topics. The material represents extended versions of papers presented at the 11th International Workshop on Image Analysis for Multimedia Interactive Services, a vital international forum on this fast-moving field. Logically organized in discrete sections that approach the subject from its various angles, the content deals in turn with content analysis, motion and activity analysis, high-level descriptors and video retrieval, 3-D and multi-view, and multimedia delivery. The chapters cover the finest detail of emerging techniques such as the use of high-level audio information in improving scene segmentation and the use of subjective logic for forensic visual surveillance. On content delivery, the book examines both images and video, focusing on key subjects including an efficient p...

  12. Practical guide to content delivery networks

    CERN Document Server

    Held, Gilbert

    2005-01-01

    With a practical and organized approach to learning and implementation, A Practical Guide to Content Delivery Networks presents a step-by-step process for building a highly available and highly scalable content delivery network (CDN). CDN refers to the infrastructure behind any service that provides utility or access to data to an end user. This book offers terminology, tactics, potential problems to avoid, and individual layers of design, providing clear understanding of the framework for CDNs using a structural and visual approach. The text emphasizes a best-of-breed strategy, allowing a tec

  13. A Content Analysis of Peer Feedback in Triadic Supervision

    Science.gov (United States)

    Avent, Janeé R.; Wahesh, Edward; Purgason, Lucy L.; Borders, L. DiAnne; Mobley, A. Keith

    2015-01-01

    There is limited research on the types of peer feedback exchanged during triadic supervision. Through a content analysis, the authors found that students provided feedback about counseling performance and cognitive counseling skills most often in supervision sessions. However, there were differences in the types of feedback exchanged across three…

  14. Advanced content delivery, streaming, and cloud services

    CERN Document Server

    Sitaraman, Ramesh Kumar; Robinson, Dom

    2014-01-01

    While other books on the market provide limited coverage of advanced CDNs and streaming technologies, concentrating solely on the fundamentals, this book provides an up-to-date comprehensive coverage of the state-of-the-art advancements in CDNs, with a special focus on Cloud-based CDNs. The book includes CDN and media streaming basics, performance models, practical applications, and business analysis. It features industry case studies, CDN applications, and open research issues to aid practitioners and researchers, and a market analysis to provide a reference point for commercial entities. The book covers Adaptive Bitrate Streaming (ABR), Content Delivery Cloud (CDC), Web Acceleration, Front End Optimization (FEO), Transparent Caching, Next Generation CDNs, CDN Business Intelligence and more.

  15. Content Delivery in Future Mobile Communication Networks

    Science.gov (United States)

    Jonas, Karl; Raber, Sergey

    2003-07-01

    With the fast progress in the deployment of wireless networks during the last few years, the global communication market requires the development of new methods for content delivery towards mobile users. It is currently characterised by the introduction of the 3rd generation of terrestrial mobile networks based on 3GPP's UMTS standard. It is expected that this will eventually lead to integrated all-IP-based infrastructures supporting a variety of radio access technologies (so-called beyond-3G-networks or 4th Generation networks). The integration of mobility support, security and accounting and provisioning of differentiated qualities of service are among the issues which are currently researched in the 4G framework.Since it is not possible to change network protocols and infrastructure at once in order to optimize them for mobile services, it is very important to find an appropriate way for the migration from the current infrastructure towards an integrated architecture, where fixed and mobile networks coexist and interoperate in the most effective and flexible way.The integration of satellite communication networks into the terrestrial mobile communication environment is the focus of R&D activities at the Competence Centre for Advanced Satellite Communication of the FhG FOKUS institute. These activities are presented in this article, with a focus on the CoDeSat Content Delivery over Satellite project.In the remainder of this article we first summarize services and service requirements as they are considered in our work. We then discuss the challenges derived from these requirements with respect to current network and protocol architectures. Finally, we describe our approach, and the current status of our prototype implementation.

  16. West Virginia peer exchange : streamlining highway safety improvement program project delivery.

    Science.gov (United States)

    2015-01-01

    The West Virginia Division of Highways (WV DOH) hosted a Peer Exchange to share information and experiences : for streamlining Highway Safety Improvement Program (HSIP) project delivery. The event was held September : 22 to 23, 2014 in Charleston, We...

  17. Content validation of an interprofessional learning video peer assessment tool.

    Science.gov (United States)

    Nisbet, Gillian; Jorm, Christine; Roberts, Chris; Gordon, Christopher J; Chen, Timothy F

    2017-12-16

    Large scale models of interprofessional learning (IPL) where outcomes are assessed are rare within health professional curricula. To date, there is sparse research describing robust assessment strategies to support such activities. We describe the development of an IPL assessment task based on peer rating of a student generated video evidencing collaborative interprofessional practice. We provide content validation evidence of an assessment rubric in the context of large scale IPL. Two established approaches to scale development in an educational setting were combined. A literature review was undertaken to develop a conceptual model of the relevant domains and issues pertaining to assessment of student generated videos within IPL. Starting with a prototype rubric developed from the literature, a series of staff and student workshops were undertaken to integrate expert opinion and user perspectives. Participants assessed five-minute videos produced in a prior pilot IPL activity. Outcomes from each workshop informed the next version of the rubric until agreement was reached on anchoring statements and criteria. At this point the rubric was declared fit to be used in the upcoming mandatory large scale IPL activity. The assessment rubric consisted of four domains: patient issues, interprofessional negotiation; interprofessional management plan in action; and effective use of video medium to engage audience. The first three domains reflected topic content relevant to the underlying construct of interprofessional collaborative practice. The fourth domain was consistent with the broader video assessment literature calling for greater emphasis on creativity in education. We have provided evidence for the content validity of a video-based peer assessment task portraying interprofessional collaborative practice in the context of large-scale IPL activities for healthcare professional students. Further research is needed to establish the reliability of such a scale.

  18. Making Peer-Assisted Content Distribution Robust to Collusion Using Bandwidth Puzzles

    Science.gov (United States)

    Reiter, Michael K.; Sekar, Vyas; Spensky, Chad; Zhang, Zhenghao

    Many peer-assisted content-distribution systems reward a peer based on the amount of data that this peer serves to others. However, validating that a peer did so is, to our knowledge, an open problem; e.g., a group of colluding attackers can earn rewards by claiming to have served content to one another, when they have not. We propose a puzzle mechanism to make contribution-aware peer-assisted content distribution robust to such collusion. Our construction ties solving the puzzle to possession of specific content and, by issuing puzzle challenges simultaneously to all parties claiming to have that content, our mechanism prevents one content-holder from solving many others' puzzles. We prove (in the random oracle model) the security of our scheme, describe our integration of bandwidth puzzles into a media streaming system, and demonstrate the resulting attack resilience via simulations.

  19. Quality of experience management in mobile content delivery systems

    NARCIS (Netherlands)

    Agboma, F.; Liotta, A.

    2012-01-01

    This study contributes towards the relatively new but growing discipline of QoE management in content delivery systems. The study focuses on the development of a QoE-based management framework for the construction of QoE models for different types of multimedia contents delivered onto three typical

  20. Event detection in athletics for personalized sports content delivery

    DEFF Research Database (Denmark)

    Katsarakis, N.; Pnevmatikakis, A.

    2009-01-01

    Broadcasting of athletics is nowadays biased towards running (sprint and longer distances) sports. Personalized content delivery can change that for users that wish to focus on different content. Using a combination of video signal processing algorithms and live information that accompanies the v...... algorithms needed for the extraction of the events that trigger both between and within sport camera selection, and describes a system that handles user preferences, live information andvideo-generated events to offer personalized content to the users.......Broadcasting of athletics is nowadays biased towards running (sprint and longer distances) sports. Personalized content delivery can change that for users that wish to focus on different content. Using a combination of video signal processing algorithms and live information that accompanies...... the video of large-scale sports like the Olympics, a system can attend to the preferences of users by selecting the most suitable camera view for them.There are two types of camera selection for personalized content delivery. According to the between sport camera selection, the view is changed between two...

  1. Efficient Content Delivery in the Presence of Impatient Jobs

    NARCIS (Netherlands)

    M. Larrañaga; O.J. Boxma (Onno); R. Núñez Queija (Rudesindo); M.S. Squillante (Mark); S. Wittevrongel; M.C. Meo; C. Rosenberg

    2015-01-01

    htmlabstractWe consider a content delivery problem in which jobs are processed in batches and may abandon before their service has been initiated. We model the problem as a Markovian single-server queue and analyze two different settings: (1) the system is cleared as soon as the server is

  2. Efficient content delivery in the presence of impatient jobs

    NARCIS (Netherlands)

    Larrañaga, M.; Boxma, O.J.; Núñez Queija, R.; Squillante, M.S.

    2015-01-01

    We consider a content delivery problem in which jobs are processed in batches and may abandon before their service has been initiated. We model the problem as a Markovian single-server queue and analyze two different settings: (1) the system is cleared as soon as the server is activated, i.e.,

  3. Efficient Content Delivery in the Presence of Impatient Jobs

    NARCIS (Netherlands)

    Larrañaga, M.; Boxma, O.J.; Núñez-Queija, R.; Squillante, M.S.

    2015-01-01

    We consider a content delivery problem in which jobs are processed in batches and may abandon before their service has been initiated. We model the problem as a Markovian single-server queue and analyze two different settings: (1) the system is cleared as soon as the server is activated, i.e.,

  4. Current Practices in the Delivery of Undergraduate Exercise Physiology Content

    Science.gov (United States)

    Fisher, Michele M.

    2013-01-01

    The purpose of this study was to identify current practices for the delivery of exercise physiology content at the undergraduate level. An anonymous 22-item survey was sent to instructors of exercise physiology to collect information concerning the structure of course offerings and instructional practices. One hundred ten instructors responded to…

  5. Effects of Written Peer-Feedback Content and Sender's Competence on Perceptions, Performance, and Mindful Cognitive Processing

    Science.gov (United States)

    Berndt, Markus; Strijbos, Jan-Willem; Fischer, Frank

    2018-01-01

    Peer-feedback efficiency might be influenced by the oftentimes voiced concern of students that they perceive their peers' competence to provide feedback as inadequate. Feedback literature also identifies mindful processing of (peer)feedback and (peer)feedback content as important for its efficiency, but lacks systematic investigation. In a 2 × 2…

  6. Delay-sensitive content distribution via peer-to-peer collaboration in public safety vehicular ad-hoc networks

    KAUST Repository

    Atat, Rachad; Yaacoub, Elias E.; Alouini, Mohamed-Slim; Filali, Fethi; Abu-Dayya, Adnan A.

    2014-01-01

    Delay-sensitive content distribution with peer-to-peer (P2P) cooperation in public safety vehicular networks is investigated. Two cooperative schemes are presented and analyzed. The first scheme is based on unicasting from the base station, whereas the second is based on threshold based multicasting. Long Term Evolution (LTE) is used for long range (LR) communications with the base station (BS) and IEEE 802.11p is considered for inter-vehicle collaboration on the short range (SR). The first scheme is shown to outperform non-cooperative unicasting and multicasting, while the second scheme outperforms non-cooperative unicasting beyond a specific number of cooperating vehicles, when the appropriate 802.11p power class is used. The first scheme achieves the best performance among the compared methods, and a practical approximation of that scheme is shown to be close to optimal performance. © 2014 Elsevier B.V. All rights reserved.

  7. Delay-sensitive content distribution via peer-to-peer collaboration in public safety vehicular ad-hoc networks

    KAUST Repository

    Atat, Rachad

    2014-05-01

    Delay-sensitive content distribution with peer-to-peer (P2P) cooperation in public safety vehicular networks is investigated. Two cooperative schemes are presented and analyzed. The first scheme is based on unicasting from the base station, whereas the second is based on threshold based multicasting. Long Term Evolution (LTE) is used for long range (LR) communications with the base station (BS) and IEEE 802.11p is considered for inter-vehicle collaboration on the short range (SR). The first scheme is shown to outperform non-cooperative unicasting and multicasting, while the second scheme outperforms non-cooperative unicasting beyond a specific number of cooperating vehicles, when the appropriate 802.11p power class is used. The first scheme achieves the best performance among the compared methods, and a practical approximation of that scheme is shown to be close to optimal performance. © 2014 Elsevier B.V. All rights reserved.

  8. Effect of beverage glucose and sodium content on fluid delivery

    Directory of Open Access Journals (Sweden)

    Cole Johnny

    2009-02-01

    Full Text Available Abstract Background Rapid fluid delivery from ingested beverages is the goal of oral rehydration solutions (ORS and sports drinks. Objective The aim of the present study was to investigate the effects of increasing carbohydrate and sodium content upon fluid delivery using a deuterium oxide (D2O tracer. Design Twenty healthy male subjects were divided into two groups of 10, the first group was a carbohydrate group (CHO and the second a sodium group (Na. The CHO group ingested four different drinks with a stepped increase of 3% glucose from 0% to 9% while sodium concentration was 20 mmol/L. The Na group ingested four drinks with a stepped increase of 20 mmol/L from 0 mmol/L to 60 mmol/l while glucose concentration was 6%. All beverages contained 3 g of D2O. Subjects remained seated for two hours after ingestion of the experimental beverage, with blood taken every 5 min in the first hour and every 10 min in the second hour. Results Including 3% glucose in the beverage led to a significantly greater AUC 60 min (19640 ± 1252 δ‰ vs. VSMOW.60 min than all trials. No carbohydrate (18381 ± 1198 δ‰ vs. VSMOW.60 min had a greater AUC 60 min than a 6% (16088 ± 1359 δ‰ vs. VSMOW.60 min and 9% beverage (13134 ± 1115 δ‰ vs. VSMOW.60 min; the 6% beverage had a significantly greater AUC 60 min than the 9% beverage. There was no difference in fluid delivery between the different sodium beverages. Conclusion In conclusion the present study showed that when carbohydrate concentration in an ingested beverage was increased above 6% fluid delivery was compromised. However, increasing the amount of sodium (0–60 mmol/L in a 6% glucose beverage did not lead to increases in fluid delivery.

  9. Applying a rateless code in content delivery networks

    Science.gov (United States)

    Suherman; Zarlis, Muhammad; Parulian Sitorus, Sahat; Al-Akaidi, Marwan

    2017-09-01

    Content delivery network (CDN) allows internet providers to locate their services, to map their coverage into networks without necessarily to own them. CDN is part of the current internet infrastructures, supporting multi server applications especially social media. Various works have been proposed to improve CDN performances. Since accesses on social media servers tend to be short but frequent, providing redundant to the transmitted packets to ensure lost packets not degrade the information integrity may improve service performances. This paper examines the implementation of rateless code in the CDN infrastructure. The NS-2 evaluations show that rateless code is able to reduce packet loss up to 50%.

  10. Can Learners Become Teachers? Evaluating the Merits of Student Generated Content and Peer Assessment

    Directory of Open Access Journals (Sweden)

    David E Murray

    2017-04-01

    Full Text Available Aim/Purpose: The aim of this project was to explore student perceptions of the value of both the creation of video content and exposure to other students’ work though peer assessment and inclusion of exemplars as unit material. Background: The research was in a first year information technology flipped-learning unit, where the assessment involved students developing video presentations that were peer assessed and exemplars incorporated into the unit as teaching material. Methodology: Data was gathered using a mixed methods approach using an online questionnaire followed by semi-structured interviews with a selection of questionnaire respondents. The interviews were designed to further explore issues identified from the analysis of the questionnaire data. Contribution: Informs on student perceptions of peer review and the integration of student generated content into University teaching. Findings: Most students enjoyed the video assessment (58% with many preferring it to a written or programming task (55-58%. In the subsequent peer assessment, many liked seeing the work of others (67% and found the approach engaging (63% yet some other perceptions were mixed or neutral. Recommendations for Practitioners: University IT students generally enjoyed and perceived peer assessment and found student generated content to be valuable. Recommendation for Researchers: Further investigation of peer review and student generated content in contexts where the student cohort represents a variety of cultures and age categories Impact on Society: Contributes to a body of knowledge regarding peer assessment and student generated educational materials. Future Research: Future work is needed to better understand this domain, in particular the role of learners’ individual differences in order to successfully integrate these approaches into modern learning environments.

  11. Enhancing the prospective biology teachers’ Pedagogical Content Knowledge (PCK) through a peer coaching based model

    Science.gov (United States)

    Anwar, Yenny

    2018-05-01

    This paper presents the results of implementation Peer Coaching Based Model that was implemented in development and Packaging Learning Tool program aimed at developing a Pedagogical Content Knowledge prospective teachers’ capabilities. Development and Packaging Learning Tool is a training program that applies various knowledge, attitude, and skill of students in order to form professional teacher. A need assessment was conducted to identify prospective teachers’ professional needs, especially PCK ability. Tests, questionnaires, interviews, field notes and video recordings were used in this research. The result indicated that the ability of Prospective teachers’ PCK has increased. This can be shown from the N-Gain that included in the medium category. This increase shows that there is integration of pedagogy and content; they have used varied strategies and can explain the reasons for its used. This means that the pattern belongs to the lower limit of the growing- PCK category. It is recommended to use peer coaching model during peer teaching.

  12. Peer counseling in an online chat service: a content analysis of social support

    NARCIS (Netherlands)

    Fukkink, R.

    2011-01-01

    In a recently launched one-on-one chat service for young people with psychosocial problems, young peer volunteers (ages 16-23) have a leading role in the conversations, comparable to the role of counselors in web-based and telephone-based child help-line services. A content analysis of the chat

  13. Essential Features for a Scholarly Journal Content Management and Peer Review Software

    OpenAIRE

    Fatima Sheikh Shoaie; Mehdi Husseini

    2010-01-01

      The present study investigates the software used in scientific journals for content management and peer review, in order to identify the essential features. These softwares are analyzed and presented in tabular format. A questionnaire was prepared and submitted to a panel composed of 15 referees, editor in chief, software designers and researchers. The essential features for a software managing the review process were divided into three groups with populations of 10-15, 5-10 and 0-5 respect...

  14. Longitudinal Changes in the Macronutrient Contents of Breast Milk in the Mothers with Preterm Delivery

    OpenAIRE

    Farid Aleali; minoo fallahi; Mohammad Kazemian; Seyyed Hossein Fakhraee; Abolfazl Afjeh

    2018-01-01

    Background: Contents of breast milk may change during the first weeks after childbirth, especially in preterm deliveries. The present study aimed to determine the macronutrient contents of breast milk in the mothers with preterm delivery. Methods: This prospective-descriptive study was conducted in Mahdieh Hospital in Tehran, Iran in 2015. Participants included the mothers with preterm delivery, whose infants had a gestational age of

  15. Convergence of Internet and TV: The Commercial Viability of P2P Content Delivery

    Science.gov (United States)

    de Boever, Jorn

    The popularity of (illegal) P2P (peer-to-peer) file sharing has a disruptive impact on Internet traffic and business models of content providers. In addition, several studies have found an increasing demand for bandwidth consuming content, such as video, on the Internet. Although P2P systems have been put forward as a scalable and inexpensive model to deliver such content, there has been relatively little economic analysis of the potentials and obstacles of P2P systems as a legal and commercial content distribution model. Many content providers encounter uncertainties regarding the adoption or rejection of P2P networks to spread content over the Internet. The recent launch of several commercial, legal P2P content distribution platforms increases the importance of an integrated analysis of the Strengths, Weaknesses, Opportunities and Threats (SWOT).

  16. Essential Features for a Scholarly Journal Content Management and Peer Review Software

    Directory of Open Access Journals (Sweden)

    Fatima Sheikh Shoaie

    2010-03-01

    Full Text Available   The present study investigates the software used in scientific journals for content management and peer review, in order to identify the essential features. These softwares are analyzed and presented in tabular format. A questionnaire was prepared and submitted to a panel composed of 15 referees, editor in chief, software designers and researchers. The essential features for a software managing the review process were divided into three groups with populations of 10-15, 5-10 and 0-5 respectively. The majority of peer review process software features, in view of panelists, fell into a group of features with a population of 10-15. Finally it should be said that the features represented by the first group must be taken into account when designing or purchasing a peer review software. The second tier features (with population of 5-10 are recommended given journal's status and capabilities. The third tier features were altogether discounted due to low population

  17. Adolescents' Internalizing Symptoms as Predictors of the Content of Their Facebook Communication and Responses Received from Peers.

    Science.gov (United States)

    Ehrenreich, Samuel E; Underwood, Marion K

    2016-09-01

    This research examined how adolescents' internalizing symptoms, such as depression, anxiety, and loneliness, relate to the content of their Facebook communication and the responses they receive from peers on Facebook. Participants ( n = 125, 56 female, age 18) reported on their internalizing symptoms in the summer following 12 th grade, and downloaded an application to their Facebook account that stored the content of all of their Facebook communication to secure, online archive. Two months of participants' status updates and comments and peers' comments were coded for content. Relations between internalizing symptoms and Facebook communication differed for girls and boys. For girls, internalizing symptoms predicted several types of Facebook content: negative affect, somatic complaints and eliciting support. In contrast, internalizing symptoms were not related to boys' Facebook posts. Relations between internalizing symptoms and peers' responses on Facebook also differed by gender. For girls, internalizing symptoms positively predicted receiving more peer comments expressing negative affect, and peer responses offering support. For boys, internalizing symptoms did not predict any of the measured peer responses. These findings suggest that girls prone to internalizing symptoms use Facebook in ways that appear similar to co-rumination, by expressing problems to friends and receive possibly reinforcing feedback in return.

  18. Effectiveness of a Hybrid Classroom in the Delivery of Medical Terminology Course Content

    Science.gov (United States)

    Martin, Jeffrey S.; Kreiger, Joan E.; Apicerno, Amy L

    2015-01-01

    Hybrid courses are emerging as a viable option for content delivery across college campuses. In an attempt to maximize learning outcomes while leveraging resources, one institution used several sections of a Medical Terminology course as a pilot. Traditional and hybrid course delivery were compared utilizing a quantitative research method to…

  19. The effect of content delivery style on student performance in anatomy.

    Science.gov (United States)

    White, Lloyd J; McGowan, Heath W; McDonald, Aaron C

    2018-04-12

    The development of new technologies and ensuing pedagogical research has led many tertiary institutions to integrate and adopt online learning strategies. The authors of this study have incorporated online learning strategies into existing educational practices of a second year anatomy course, resulting in half of the course content delivered via face-to-face lectures, and half delivered online via tailored video vignettes, with accompanying worksheets and activities. The effect of the content delivery mode on student learning was analyzed by tailoring questions to content presented either face-to-face or online. Four practical tests were conducted across the semester with each consisting of four questions. Within each test, two questions were based on content delivered face-to-face, and two questions were based on content delivered online. Examination multiple choice questions were similarly divided and assessed. Findings indicate that student learning is consistent regardless of the mode of content delivery. However, student viewing habits had a significant impact on learning, with students who viewed videos multiple times achieving higher marks than those less engaged with the online content. Student comments also indicated that content delivery mode was not an influence on learning. Therefore student engagement, rather than the mode of content delivery, is a determinant of student learning and performance in human anatomy. Anat Sci Educ. © 2018 American Association of Anatomists. © 2018 American Association of Anatomists.

  20. The Journal of Earth System Science Education: Peer Review for Digital Earth and Digital Library Content

    Science.gov (United States)

    Johnson, D.; Ruzek, M.; Weatherley, J.

    2001-05-01

    The Journal of Earth System Science Education is a new interdisciplinary electronic journal aiming to foster the study of the Earth as a system and promote the development and exchange of interdisciplinary learning resources for formal and informal education. JESSE will serve educators and students by publishing and providing ready electronic access to Earth system and global change science learning resources for the classroom and will provide authors and creators with professional recognition through publication in a peer reviewed journal. JESSE resources foster a world perspective by emphasizing interdisciplinary studies and bridging disciplines in the context of the Earth system. The Journal will publish a wide ranging variety of electronic content, with minimal constraints on format, targeting undergraduate educators and students as the principal readership, expanding to a middle and high school audience as the journal matures. JESSE aims for rapid review and turn-around of resources to be published, with a goal of 12 weeks from submission to publication for resources requiring few changes. Initial publication will be on a quarterly basis until a flow of resource submissions is established to warrant continuous electronic publication. JESSE employs an open peer review process in which authors and reviewers discuss directly the acceptability of a resource for publication using a software tool called the Digital Document Discourse Environment. Reviewer comments and attribution will be available with the resource upon acceptance for publication. JESSE will also implement a moderated peer commentary capability where readers can comment on the use of a resource or make suggestions. In the development phase, JESSE will also conduct a parallel anonymous review of content to validate and ensure credibility of the open review approach. Copyright of materials submitted remains with the author, granting JESSE the non-exclusive right to maintain a copy of the resource

  1. Digital television in the delivery of multimedia education content.

    CSIR Research Space (South Africa)

    Ntlatlapa, N

    2012-11-01

    Full Text Available Broadband access has not reached all corners of South Africa, and yet the need to deliver multimedia education content to all schools in the country remains the same. Low-cost, appropriate technologies would enable schools in areas that would have...

  2. Optimizing nursing care delivery systems in the Army: back to basics with care teams and peer feedback.

    Science.gov (United States)

    Prue-Owens, Kathy; Watkins, Miko; Wolgast, Kelly A

    2011-01-01

    The Patient CaringTouch System emerged from a comprehensive assessment and gap analysis of clinical nursing capabilities in the Army. The Patient CaringTouch System now provides the framework and set of standards by which we drive excellence in quality nursing care for our patients and excellence in quality of life for our nurses in Army Medicine. As part of this enterprise transformation, we placed particular emphasis on the delivery of nursing care at the bedside as well as the integration of a formal professional peer feedback process in support of individual nurse practice enhancement. The Warrior Care Imperative Action Team was chartered to define and establish the standards for care teams in the clinical settings and the process by which we established formal peer feedback for our professional nurses. This back-to-basics approach is a cornerstone of the Patient CaringTouch System implementation and sustainment.

  3. Designing a physical activity parenting course: Parental views on recruitment, content and delivery

    Science.gov (United States)

    2012-01-01

    Background Many children do not engage in sufficient levels of physical activity (PA) and spend too much time screen-viewing (SV). High levels of SV (e.g. watching TV, playing video games and surfing the internet) and low levels of PA have been associated with adverse health outcomes. Parenting courses may hold promise as an intervention medium to change children’s PA and SV. The current study was formative work conducted to design a new parenting programme to increase children’s PA and reduce their SV. Specifically, we focussed on interest in a course, desired content and delivery style, barriers and facilitators to participation and opinions on control group provision. Methods In-depth telephone interviews were conducted with thirty two parents (29 female) of 6–8 year olds. Data were analysed thematically. An anonymous online survey was also completed by 750 parents of 6–8 year old children and descriptive statistics calculated. Results Interview participants were interested in a parenting course because they wanted general parenting advice and ideas to help their children be physically active. Parents indicated that they would benefit from knowing how to quantify their child’s PA and SV levels. Parents wanted practical ideas of alternatives to SV. Most parents would be unable to attend unless childcare was provided. Schools were perceived to be a trusted source of information about parenting courses and the optimal recruitment location. In terms of delivery style, the majority of parents stated they would prefer a group-based approach that provided opportunities for peer learning and support with professional input. Survey participants reported the timing of classes and the provision of childcare were essential factors that would affect participation. In terms of designing an intervention, the most preferred control group option was the opportunity to attend the same course at a later date. Conclusions Parents are interested in PA/SV parenting

  4. Designing a physical activity parenting course: Parental views on recruitment, content and delivery

    Directory of Open Access Journals (Sweden)

    Jago Russell

    2012-07-01

    Full Text Available Abstract Background Many children do not engage in sufficient levels of physical activity (PA and spend too much time screen-viewing (SV. High levels of SV (e.g. watching TV, playing video games and surfing the internet and low levels of PA have been associated with adverse health outcomes. Parenting courses may hold promise as an intervention medium to change children’s PA and SV. The current study was formative work conducted to design a new parenting programme to increase children’s PA and reduce their SV. Specifically, we focussed on interest in a course, desired content and delivery style, barriers and facilitators to participation and opinions on control group provision. Methods In-depth telephone interviews were conducted with thirty two parents (29 female of 6–8 year olds. Data were analysed thematically. An anonymous online survey was also completed by 750 parents of 6–8 year old children and descriptive statistics calculated. Results Interview participants were interested in a parenting course because they wanted general parenting advice and ideas to help their children be physically active. Parents indicated that they would benefit from knowing how to quantify their child’s PA and SV levels. Parents wanted practical ideas of alternatives to SV. Most parents would be unable to attend unless childcare was provided. Schools were perceived to be a trusted source of information about parenting courses and the optimal recruitment location. In terms of delivery style, the majority of parents stated they would prefer a group-based approach that provided opportunities for peer learning and support with professional input. Survey participants reported the timing of classes and the provision of childcare were essential factors that would affect participation. In terms of designing an intervention, the most preferred control group option was the opportunity to attend the same course at a later date. Conclusions Parents are

  5. Adolescents’ Internalizing Symptoms as Predictors of the Content of Their Facebook Communication and Responses Received from Peers

    Science.gov (United States)

    Ehrenreich, Samuel E.; Underwood, Marion K.

    2016-01-01

    This research examined how adolescents’ internalizing symptoms, such as depression, anxiety, and loneliness, relate to the content of their Facebook communication and the responses they receive from peers on Facebook. Participants (n = 125, 56 female, age 18) reported on their internalizing symptoms in the summer following 12th grade, and downloaded an application to their Facebook account that stored the content of all of their Facebook communication to secure, online archive. Two months of participants’ status updates and comments and peers’ comments were coded for content. Relations between internalizing symptoms and Facebook communication differed for girls and boys. For girls, internalizing symptoms predicted several types of Facebook content: negative affect, somatic complaints and eliciting support. In contrast, internalizing symptoms were not related to boys’ Facebook posts. Relations between internalizing symptoms and peers’ responses on Facebook also differed by gender. For girls, internalizing symptoms positively predicted receiving more peer comments expressing negative affect, and peer responses offering support. For boys, internalizing symptoms did not predict any of the measured peer responses. These findings suggest that girls prone to internalizing symptoms use Facebook in ways that appear similar to co-rumination, by expressing problems to friends and receive possibly reinforcing feedback in return. PMID:28083544

  6. Content analysis of oncology-related pharmaceutical advertising in a peer-reviewed medical journal.

    Directory of Open Access Journals (Sweden)

    Kan Yonemori

    Full Text Available BACKGROUND: The oncology market represents one of the largest pharmaceutical markets in any medical field, and printed advertising in medical journals is an important channel by which pharmaceutical companies communicate with healthcare professionals. The aim of the present study was to analyze the volume and content of and trends and changes in oncology-related advertising intended for healthcare professionals in a peer-reviewed medical journal. Information that could be included in advertisements to promote drug development and improve treatment strategies for cancer patients is discussed on the basis of the results of the analysis. METHODS/PRINCIPAL FINDINGS: Overall, 6,720 advertisements covering 13,039 pages in a leading oncology medical journal published (by the American Society of Clinical Oncology between January 2005 and December 2009 were analyzed. The advertisements targeting pharmaceuticals and clinical trials, in particular, were reviewed. A total of 6,720 advertisements covering 13,039 pages were included in the analysis. For the years 2005-2009, the percentages of total journal pages dedicated to advertising were 24.0%, 45.7%, 49.8%, 46.8%, and 49.8%, respectively. Package insert information and efficacy and safety explanations appeared in more than 80% of advertisements intended for pharmaceutical promotion. From 2005 to 2009, the overall quantity of drug advertisements decreased by approximately 13%, whereas advertisements calling for the enrollment of patients into registration trials increased by approximately 11%. CONCLUSION/SIGNIFICANCE: Throughout the study period, oncology-related pharmaceutical advertisements occupied a considerable number of pages relative to other journal content. The proportion of advertisements on ongoing clinical trials increased progressively throughout the study period.

  7. Content analysis of oncology-related pharmaceutical advertising in a peer-reviewed medical journal.

    Science.gov (United States)

    Yonemori, Kan; Hirakawa, Akihiro; Ando, Masashi; Hirata, Taizo; Yunokawa, Mayu; Shimizu, Chikako; Tamura, Kenji; Fujiwara, Yasuhiro

    2012-01-01

    The oncology market represents one of the largest pharmaceutical markets in any medical field, and printed advertising in medical journals is an important channel by which pharmaceutical companies communicate with healthcare professionals. The aim of the present study was to analyze the volume and content of and trends and changes in oncology-related advertising intended for healthcare professionals in a peer-reviewed medical journal. Information that could be included in advertisements to promote drug development and improve treatment strategies for cancer patients is discussed on the basis of the results of the analysis. Overall, 6,720 advertisements covering 13,039 pages in a leading oncology medical journal published (by the American Society of Clinical Oncology) between January 2005 and December 2009 were analyzed. The advertisements targeting pharmaceuticals and clinical trials, in particular, were reviewed. A total of 6,720 advertisements covering 13,039 pages were included in the analysis. For the years 2005-2009, the percentages of total journal pages dedicated to advertising were 24.0%, 45.7%, 49.8%, 46.8%, and 49.8%, respectively. Package insert information and efficacy and safety explanations appeared in more than 80% of advertisements intended for pharmaceutical promotion. From 2005 to 2009, the overall quantity of drug advertisements decreased by approximately 13%, whereas advertisements calling for the enrollment of patients into registration trials increased by approximately 11%. Throughout the study period, oncology-related pharmaceutical advertisements occupied a considerable number of pages relative to other journal content. The proportion of advertisements on ongoing clinical trials increased progressively throughout the study period.

  8. Assessing Google Cardboard Virtual Reality as a Content Delivery System in Business Classrooms

    Science.gov (United States)

    Lee, Seung Hwan; Sergueeva, Ksenia; Catangui, Mathew; Kandaurova, Maria

    2017-01-01

    In the past, researchers have explored virtual reality (VR) as an educational tool primarily for training or therapeutic purposes. In this research, the authors examine the potential for using Google Cardboard VR in business classrooms as a content delivery platform. They specifically investigate how VR (viewing a 3-dimensional, 360° video)…

  9. Customized Content Delivery for Graduate Management Education: Application to Business Statistics

    Science.gov (United States)

    Hall, Owen P., Jr.; Ko, Ken

    2008-01-01

    Globalization is bringing about a radical "rethink" regarding the delivery of graduate management education. Today, many students entering a residential MBA program do not possess an undergraduate degree in business. As a result, many business schools are increasingly turning to the Internet to provide "customized" instructional content to ensure…

  10. Use of Doceri Software for iPad in Online Delivery of Chemistry Content

    Science.gov (United States)

    Silverberg, Lee J.; Tierney, John; Bodek, Matthew J.

    2014-01-01

    Doceri software for iPad is useful for both synchronous online and asynchronous online delivery of chemistry course content. Using the Doceri wireless connection between the iPad and a personal computer that is running Adobe Connect, online synchronous instruction can be accomplished in which drawings can be completed by hand on the iPad. For…

  11. Comparing Online to Face-To-Face Delivery of Undergraduate Digital Circuits Content

    Science.gov (United States)

    LaMeres, Brock J.; Plumb, Carolyn

    2014-01-01

    This paper presents a comparison of online to traditional face-to-face delivery of undergraduate digital systems material. Two specific components of digital content were compared and evaluated: a sophomore logic circuits course with no laboratory, and a microprocessor laboratory component of a junior-level computer systems course. For each of…

  12. Content-specific network analysis of peer-to-peer communication in an online community for smoking cessation.

    Science.gov (United States)

    Myneni, Sahiti; Cobb, Nathan K; Cohen, Trevor

    2016-01-01

    Analysis of user interactions in online communities could improve our understanding of health-related behaviors and inform the design of technological solutions that support behavior change. However, to achieve this we would need methods that provide granular perspective, yet are scalable. In this paper, we present a methodology for high-throughput semantic and network analysis of large social media datasets, combining semi-automated text categorization with social network analytics. We apply this method to derive content-specific network visualizations of 16,492 user interactions in an online community for smoking cessation. Performance of the categorization system was reasonable (average F-measure of 0.74, with system-rater reliability approaching rater-rater reliability). The resulting semantically specific network analysis of user interactions reveals content- and behavior-specific network topologies. Implications for socio-behavioral health and wellness platforms are also discussed.

  13. A qualitative content analysis of peer mentoring video calls in adolescents with chronic illness.

    Science.gov (United States)

    Ahola Kohut, Sara; Stinson, Jennifer; Forgeron, Paula; van Wyk, Margaret; Harris, Lauren; Luca, Stephanie

    2018-05-01

    This article endeavored to determine the topics of discussion during open-ended peer mentoring between adolescents and young adults living with chronic illness. This study occurred alongside a study of the iPeer2Peer Program. Fifty-two calls (7 mentor-mentee pairings) were audio recorded, transcribed verbatim, and analyzed using inductive coding with an additional 30 calls (21 mentor-mentee pairings) coded to ensure representativeness of the data. Three categories emerged: (1) illness impact (e.g., relationships, school/work, self-identity, personal stories), (2) self-management (e.g., treatment adherence, transition to adult care, coping strategies), and (3) non-illness-related adolescent issues (e.g., post-secondary goals, hobbies, social environments). Differences in discussed topics were noted between sexes and by diagnosis. Peer mentors provided informational, appraisal, and emotional support to adolescents.

  14. Peer-to-Peer Content Distribution and Over-The-Top TV: An Analysis of Value Networks

    Science.gov (United States)

    de Boever, Jorn; de Grooff, Dirk

    The convergence of Internet and TV, i.e., the Over-The-Top TV (OTT TV) paradigm, created opportunities for P2P content distribution as these systems reduce bandwidth expenses for media companies. This resulted in the arrival of legal, commercial P2P systems which increases the importance of studying economic aspects of these business operations. This chapter examines the value networks of three cases (Kontiki, Zattoo and bittorrent) in order to compare how different actors position and distinguish themselves from competitors by creating value in different ways. The value networks of legal systems have different compositions depending on their market orientation - Business-to-Business (B2B) and/or Businessto- Consumer (B2C). In addition, legal systems differ from illegal systems as legal companies are not inclined to grant control to users, whereas users havemost control in value networks of illegal, self-organizing file sharing communities. In conclusion, the OTT TV paradigm made P2P technology a partner for the media industry rather than an enemy. However, we argue that the lack of control granted to users will remain a seed-bed for the success of illegal P2P file sharing communities.

  15. Adaptive Content Management for UGC Video Delivery in Mobile Internet Era

    Directory of Open Access Journals (Sweden)

    Qilin Fan

    2016-01-01

    Full Text Available The demand of storing and transferring user generated content (UGC has been rapidly growing with the popularization of mobile devices equipped with video recording and playback capabilities. As a typical application of software-defined networks/network functions virtualization-based pervasive communications infrastructure, content delivery networks (CDNs have been widely leveraged to distribute contents across different geographical locations. Nevertheless, the content delivery for UGC is inefficient with the existing “pull-based” caching mechanism in traditional CDNs, because there exists a huge volume of lukewarm or cold UGC which results in a low cache hit ratio. In this paper, we propose a “push-based” caching mechanism to efficiently and economically deliver UGC videos. Different from traditional CDNs which separate the original content storage and caching, we directly store UGC videos into selective servers which serve as both reliable storages and user-facing uploading servers. By carefully and dynamically selecting the storage locations of each UGC object based on its popularity and locality, we not only guarantee the data availability but also remarkably improve the content distribution performance and reduce the distribution cost.

  16. The development of pedagogical content knowledge in science teachers: New opportunities through technology-mediated reflection and peer-exchange

    Science.gov (United States)

    Madeira, M. Cheryl-Ann

    This design-based research study investigates the development of pedagogical content knowledge among nine teacher-participants (N = 9) in three design phases. PCK is a particular type of teacher knowledge that addresses not only the teacher's understanding of the content to be instructed, but also ways of how to teach that content effectively. This knowledge has been well documented over several decades, and is seen as central to teacher expertise. However, its actual development has been difficult for researchers to investigate. This study offers a detailed perspective on how teachers developed PCK with their engagement in lesson planning and enactment of a project-based technology-enhanced lesson. The study includes two specific interventions designed to enhance teachers' development of PCK: (1) scaffolded reflection that occurs throughout the practices; and (2) peer-exchange of lesson plans, enactment ideas, and completed reflections. The findings demonstrate that teachers improve their planning and enactment of project-based technology-enhanced lessons with scaffolded reflection and peer exchange. Positive correlations were seen between teachers' engagement in the reflections and the quality of their lesson planning. Teachers who participated more deeply in the scaffolded reflections were able to understand how their lesson plans and enactment patterns fostered student understanding of relevant science concepts. Positive correlations were also seen between community influence and teacher lesson plans and enactment. Additionally, positive correlations were confirmed between teachers' level of participation in the peer exchange activities and the quality of their lesson planning and enactments. Teachers who contributed more deeply within the online and face-to-face peer community meetings benefited from the different perspectives of their peers about student learning and the best ways to succeed with project-based instruction. This study allowed some insight into

  17. "Anonymous Meltdown": Content Themes Emerging in a Nonfacilitated, Peer-only, Unstructured, Asynchronous Online Support Group for Family Caregivers.

    Science.gov (United States)

    Diefenbeck, Cynthia A; Klemm, Paula R; Hayes, Evelyn R

    2017-12-01

    By providing care for loved ones in the home, family caregivers save millions of dollars for our overtaxed healthcare system. Support groups can lighten the psychological burden of caregiving. Nonprofessionally facilitated (or peer) online caregiver support groups can help meet a critical need in healthcare as a low-cost resource for caregivers. Online caregiver peer support groups can promote the health and well-being of family caregivers and, by extension, the patients themselves, resulting in cost-savings for society. A better understanding of these types of groups is of critical importance, given the unrelenting pace of demographic shift in the United States. The purpose of this study was to examine content themes emerging from an unstructured, asynchronous online peer support group for family caregivers of people with chronic illness. Qualitative content analysis was used, yielding six themes: "experiencing the emotional toll," "need for catharsis/venting," "finding the silver linings," "seeking specific advice/problem solving," "realizing home is no longer a haven," and "adapting to the caregiver role." The themes reflect what emerged organically in an online support group that was not professionally facilitated or structured in any way. Heterogeneity in the relationship between caregivers and care recipients may negatively affect outcomes and requires further study.

  18. Analysis of nifedipine content in transdermal drug delivery system using non-destructive visible spectrophotometry technique

    International Nuclear Information System (INIS)

    Normaizira Hamidi; Normaizira Hamidi; Normaizira Hamidi; Mohd Nasir Taib; Mohd Nasir Taib; Wui, Wong Tin; Wui, Wong Tin

    2008-01-01

    The applicability of visible spectrophotometry technique as a tool to determine the drug content of polymeric film for use as a transdermal drug delivery system was investigated. Hydroxypropylmethycellulose (HPMC) was selected as the matrix polymer and nifedipine as the model drug. Blank and nifedipine-loaded HPMC films were prepared using the solvent evaporation method. The absorbance spectra of these films under the visible wavelengths between 400 and 800 nm were assessed and compared against the drug content values obtained by means of the conventional destructive UV- spectrophotometry technique. The latter required the use of a solvent system which contained methanol, a harmful organic component in pharmaceutical applications. The results indicated that the absorbance values, attributed to nifedipine, at the wavelengths of 545, 585, 638 and 755nm were significantly correlated to the drug content values obtained using the chemical assay method (Pearson correlation value: r = 0.990 and p < 0.01). The visible spectrophotometry technique is potentially suitable for use to determine the nifedipine content of films owing to its nature of characterization of transdermal drug delivery system which does not require sample destruction during the process of measurement. The samples are recoverable from test and analysis of the entire batch of samples is possible without the need of solvents and chemical reagents. (author)

  19. Children’s Attitudes and Stereotype Content Toward Thin, Average-Weight, and Overweight Peers

    Directory of Open Access Journals (Sweden)

    Federica Durante

    2014-05-01

    Full Text Available Six- to 11-year-old children’s attitudes toward thin, average-weight, and overweight targets were investigated with associated warmth and competence stereotypes. The results showed positive attitudes toward average-weight targets and negative attitudes toward overweight peers: Both attitudes decreased as a function of children’s age. Thin targets were perceived more positively than overweight ones but less positively than average-weight targets. Notably, social desirability concerns predicted the decline of anti-fat bias in older children. Finally, the results showed ambivalent stereotypes toward thin and overweight targets—particularly among older children—mirroring the stereotypes observed in adults. This result suggests that by the end of elementary school, children manage the two fundamental dimensions of social judgment similar to adults.

  20. Peer social support training in UK prisons.

    Science.gov (United States)

    Stewart, Warren; Lovely, Rachel

    2017-10-11

    To undertake a service evaluation to assess the effect of peer social support training using two separate learning programmes, which were designed to assist prisoners to support older prisoners and prisoners with disabilities. The service evaluation used an action research approach to support planning, delivery and data collection. Eleven interviews with nine prisoners who had undertaken the peer social support training programmes and two members of prison staff (one nurse manager and one prison officer) were recorded and transcribed by the researchers. This data was coded and thematically analysed to evaluate the findings. Recommendations were made regarding the format and content of the training. The training was well received by the peer social support worker trainees and had several positive outcomes, including increased peer social support, improved relationships between peer social support workers and older prisoners and prisoners with disabilities, increased self-esteem, measured as 'social capital', among peer social support workers, and effective teamworking. The peer social support training programmes were considered to be a positive intervention and were effective in supporting peer social support roles. Recommendations for future training of prisoner peer support workers include involving existing peer social support workers in training and recruitment, and enhancing the role of peer social support workers in prisons by providing them with job descriptions. ©2012 RCN Publishing Company Ltd. All rights reserved. Not to be copied, transmitted or recorded in any way, in whole or part, without prior permission of the publishers.

  1. Multimedia Cross–Platform Content Distribution for Mobile Peer–to–Peer Networks using Network Coding

    DEFF Research Database (Denmark)

    Pedersen, Morten Videbæk; Heide, Janus; Vingelmann, Peter

    2010-01-01

    communication. In this paper we will introduce a mobile application that runs on Symbian as well as iPhone/iPod de vices and is able to exchange multimedia content in a point to multipoint fashion. The mobile application coined PictureViewer can convey pictures from one source device to many neighboring devices...

  2. Automatisation of moisture content measurement in biofuel deliveries; Automatiserad fukthaltsmaetning vid braenslemottagning

    Energy Technology Data Exchange (ETDEWEB)

    Aulin, Robert; Hessling, Krister; Karlsson, Mikael; Tryzell, Robert (Bestwood AB, Sundbyberg (Sweden))

    2008-06-15

    Measurement of moisture content in biofuel is normally made through manual sampling near the surface of truck deliveries or in the bulk of fuel deliveries that is distributed on e.g. a storage area. Moisture content is usually performed trough gravimetric determination at lab using oven drying for 24 hours. Precision is approximately a standard deviation of 2 %-units. However, there are several reasons to replace this method by an automatic procedure that measures moisture content in the bulk of the cargo. Except for obtaining more representative samples in the bulk, are speed and the measurement cost important characteristics. The purpose of this project was to develop a well-functioning prototype of a system that is automatic in the sense that manual sampling and sample preparation is replaced by a Near Infra Red (NIR) based system. The intended users of such a system would be both buyers of biofuel and suppliers who would benefit from better knowledge of the quality of the product that they are about to deliver. This project was initiated in the late autumn of 2006. A complete hardware set-up including a NIR spectrophotometer, light probe and a crane was installed in June 2007 in Eskilstuna, Sweden, and shown to members of the reference group at Vaermeforsk. The reliability of reference data obtained through gravimetric measurement was unfortunately not as good as expected on beforehand. This problem was due to the difficulty of obtaining representative samples near the surface of the truck cargo. It delayed the validation phase of this project significantly. An evaluation of the NIR based system reveals a good accuracy and precision that is far better than that of the traditional method for delivery control. A major reason for the superior precision is that the sampling error is reduced. Further, the NIR based system delivers real-time moisture data with a speed that is difficult to reach at lab because of restrictions in manual labour and limitations in

  3. From a Content Delivery Portal to a Knowledge Management System for Standardized Cancer Documentation.

    Science.gov (United States)

    Schlue, Danijela; Mate, Sebastian; Haier, Jörg; Kadioglu, Dennis; Prokosch, Hans-Ulrich; Breil, Bernhard

    2017-01-01

    Heterogeneous tumor documentation and its challenges of interpretation of medical terms lead to problems in analyses of data from clinical and epidemiological cancer registries. The objective of this project was to design, implement and improve a national content delivery portal for oncological terms. Data elements of existing handbooks and documentation sources were analyzed, combined and summarized by medical experts of different comprehensive cancer centers. Informatics experts created a generic data model based on an existing metadata repository. In order to establish a national knowledge management system for standardized cancer documentation, a prototypical tumor wiki was designed and implemented. Requirements engineering techniques were applied to optimize this platform. It is targeted to user groups such as documentation officers, physicians and patients. The linkage to other information sources like PubMed and MeSH was realized.

  4. NASA Product Peer Review Process

    Science.gov (United States)

    Jenks, Ken

    2009-01-01

    This viewgraph presentation describes NASA's product peer review process. The contents include: 1) Inspection/Peer Review at NASA; 2) Reasons for product peer reviews; 3) Different types of peer reviews; and 4) NASA requirements for peer reviews. This presentation also includes a demonstration of an actual product peer review.

  5. Optimizing cationic and neutral lipids for efficient gene delivery at high serum content.

    Science.gov (United States)

    Chan, Chia-Ling; Ewert, Kai K; Majzoub, Ramsey N; Hwu, Yeu-Kuang; Liang, Keng S; Leal, Cecília; Safinya, Cyrus R

    2014-01-01

    Cationic liposome (CL)-DNA complexes are promising gene delivery vectors with potential application in gene therapy. A key challenge in creating CL-DNA complexes for application is that their transfection efficiency (TE) is adversely affected by serum. In particular, little is known about the effects of a high serum content on TE, even though this may provide design guidelines for application in vivo. We prepared CL-DNA complexes in which we varied the neutral lipid [1,2-dioleoyl-sn-glycerophosphatidylcholine, glycerol-monooleate (GMO), cholesterol], the headgroup charge and chemical structure of the cationic lipid, and the ratio of neutral to cationic lipid; we then measured the TE of these complexes as a function of serum content and assessed their cytotoxicity. We tested selected formulations in two human cancer cell lines (M21/melanoma and PC-3/prostate cancer). In the absence of serum, all CL-DNA complexes of custom-synthesized multivalent lipids show high TE. Certain combinations of multivalent lipids and neutral lipids, such as MVL5(5+)/GMO-DNA complexes or complexes based on the dendritic-headgroup lipid TMVLG3(8+) exhibited high TE both in the absence and presence of serum. Although their TE still dropped to a small extent in the presence of serum, it reached or surpassed that of benchmark commercial transfection reagents, particularly at a high serum content. Two-component vectors (one multivalent cationic lipid and one neutral lipid) can rival or surpass benchmark reagents at low and high serum contents (up to 50%, v/v). We propose guidelines for optimizing the serum resistance of CL-DNA complexes based on a given cationic lipid. Copyright © 2014 John Wiley & Sons, Ltd.

  6. Content, Delivery, and Effectiveness of Concussion Education for US College Coaches.

    Science.gov (United States)

    Kroshus, Emily; Baugh, Christine M; Daneshvar, Daniel H

    2016-09-01

    The primary objective of this study was to examine the proportion of US college coaches who receive annual concussion education from their institution and to describe the content and delivery modalities of this education. This study also tested the hypothesis that coaches receiving concussion education from their institution will have greater knowledge about concussions independent of other individual and institutional characteristics. Cross-sectional online survey. US college sport. College coaches in National Collegiate Athletic Association Division I, II, and III (n = 1818). Self-reported receipt of education from institution, sex, sport coached, division of competition. Concussion identification and management knowledge. Two-thirds of coaches reported receiving informational materials about concussion from their institution. The content of the education most frequently referred to symptoms of a concussion and information about proper management of a concussion. Coaches who received educational materials from their institution were better able to identify symptoms and had more conservative responses to concussion management scenarios. Male coaches of male contact or collision teams less frequently endorsed safe or correct response as compared with female coaches of noncontact or collision teams. Not all US college coaches receive concussion education from their institution. Male Division I coaches of male contact/collision sport are a population for whom targeted educational outreach may be particularly valuable. Education for coaches, delivered by clinicians at many institutions, is an important component of ensuring that coaches are prepared to be informed partners in supporting concussion safety.

  7. Consumers’ Preferences for Electronic Nicotine Delivery System Product Features: A Structured Content Analysis

    Directory of Open Access Journals (Sweden)

    Christine E. Kistler

    2017-06-01

    Full Text Available To inform potential governmental regulations, we aimed to develop a list of electronic nicotine delivery system (ENDS product features important to U.S. consumers by age and gender. We employed qualitative data methods. Participants were eligible if they had used an ENDS at least once. Groups were selected by age and gender (young adult group aged 18–25, n = 11; middle-age group aged 26–64, n = 9; and women’s group aged 26–64, n = 9. We conducted five individual older adult interviews (aged 68–80. Participants discussed important ENDS features. We conducted a structured content analysis of the group and interview responses. Of 34 participants, 68% were white and 56% were female. Participants mentioned 12 important ENDS features, including: (1 user experience; (2 social acceptability; (3 cost; (4 health risks/benefits; (5 ease of use; (6 flavors; (7 smoking cessation aid; (8 nicotine content; (9 modifiability; (10 ENDS regulation; (11 bridge between tobacco cigarettes; (12 collectability. The most frequently mentioned ENDS feature was modifiability for young adults, user experience for middle-age and older adults, and flavor for the women’s group. This study identified multiple features important to ENDS consumers. Groups differed in how they viewed various features by age and gender. These results can inform ongoing regulatory efforts.

  8. Different digital paths to the keg? How exposure to peers' alcohol-related social media content influences drinking among male and female first-year college students.

    Science.gov (United States)

    Boyle, Sarah C; LaBrie, Joseph W; Froidevaux, Nicole M; Witkovic, Yong D

    2016-06-01

    Despite speculation that peers' alcohol-related content on social media sites (SMS) may influence the alcohol use behaviors of SMS frequenting college students, this relationship has not been investigated longitudinally. The current prospective study assesses the relationship between exposure to peers' alcohol-related SMS content and later-drinking among first-year college students. Among 408 first-year students, total exposure to peers' alcohol-related content on Facebook, Instagram, and Snapchat during the initial 6 weeks of college predicted alcohol consumption 6 months later. The rather robust relationship persisted even after students' and close friends drinking were accounted for, indicating that alcohol references on SMS do not simply reflect alcohol use behaviors that would otherwise be observed in the absence of SMS and be predictive of later alcohol use. Findings also illuminate important gender differences in the degree to which peers' alcohol-related SMS content influenced later drinking behavior as well as psychological mediators of this relationship. Among females, enhancement drinking motives and beliefs about the role of alcohol in the college experience fully mediated the relationship between SMS alcohol exposure and later drinking. Males, however, evidenced a much stronger predictive relationship between SMS alcohol exposure and second semester drinking, with this relationship only partially explained by perceptions of drinking norms, enhancement drinking motives, and beliefs about the role of alcohol in the college experience. Implications of these findings for college drinking prevention efforts and directions for future research are discussed. Copyright © 2016. Published by Elsevier Ltd.

  9. Structure, Content, Delivery, Service, and Outcomes: Quality e-Learning in higher education

    Directory of Open Access Journals (Sweden)

    Colla J. MacDonald

    2005-07-01

    Full Text Available This paper addresses the need for quality e-Learning experiences. We used the Demand-Driven Learning Model (MacDonald, Stodel, Farres, Breithaupt, and Gabriel, 2001 to evaluate an online Masters in Education course. Multiple data collection methods were used to understand the experiences of stakeholders in this case study: the learners, design team, and facilitators. We found that all five dimensions of the model (structure, content, delivery, service, and outcomes must work in concert to implement a quality e-Learning course. Key themes include evolving learner needs, the search for connection, becoming an able e-participant, valued interactions, social construction of content, integration of delivery partners, and mindful weighing of benefits and trade-offs. By sharing insights into what is needed to design and deliver an e-Learning experience, our findings add to the growing knowledge of online learning. Using this model to evaluate perceptions of quality by key stakeholders has led to insights and recommendations on the Demand Driven Learning Model itself which may be useful for researchers in this area and strengthen the model. Quality has been defined in terms of the design of the e-Learning experience, the contextualized experience of learners, and evidence of learning outcomes (Carr and Carr, 2000; Jung 2000; Salmon, 2000. Quality and design of e-Learning courses, however, are sometimes compromised in an “ . . . effort to simply get something up and running��� in response to pressing consumer demands (Dick, 1996, p. 59. Educators and researchers have voiced concern over the lack of rigorous evaluation studies of e-Learning programs (e.g., Arbaugh, 2000; Howell, Saba, Lindsay, and Williams, 2004; Lockyer, Patterson, and Harper, 1999; Robinson, 2001. McGorry (2003 adds, “although the number of courses being delivered via the Internet is increasing rapidly, our knowledge of what makes these courses effective learning experiences

  10. Screening of siRNA nanoparticles for delivery to airway epithelial cells using high-content analysis

    LENUS (Irish Health Repository)

    Hibbitts, Alan

    2011-08-01

    Aims: Delivery of siRNA to the lungs via inhalation offers a unique opportunity to develop a new treatment paradigm for a range of respiratory conditions. However, progress has been greatly hindered by safety and delivery issues. This study developed a high-throughput method for screening novel nanotechnologies for pulmonary siRNA delivery. Methodology: Following physicochemical analysis, the ability of PEI–PEG–siRNA nanoparticles to facilitate siRNA delivery was determined using high-content analysis (HCA) in Calu-3 cells. Results obtained from HCA were validated using confocal microscopy. Finally, cytotoxicity of the PEI–PEG–siRNA particles was analyzed by HCA using the Cellomics® multiparameter cytotoxicity assay. Conclusion: PEI–PEG–siRNA nanoparticles facilitated increased siRNA uptake and luciferase knockdown in Calu-3 cells compared with PEI–siRNA.

  11. 17 CFR 9.11 - Form, contents and delivery of notice of disciplinary or access denial action.

    Science.gov (United States)

    2010-04-01

    ... notice of disciplinary or access denial action. 9.11 Section 9.11 Commodity and Securities Exchanges... OTHER ADVERSE ACTIONS Notice and Effective Date of Disciplinary Action or Access Denial Action § 9.11 Form, contents and delivery of notice of disciplinary or access denial action. (a) When required...

  12. An Investigation of the Amount of Emphasis Placed on Content and Delivery by Instructors of Public Speaking.

    Science.gov (United States)

    Siddens, Paul J., III

    A study examined how much emphasis instructors of public speaking place on content and delivery when teaching and delivering oral and written critiques. The study sought to determine whether when teaching a hybrid introduction to communication course, or public speaking course, instructors are challenged with teaching their students about issues…

  13. o'Peer: open peer review

    International Nuclear Information System (INIS)

    Brewer, J H

    2014-01-01

    I have built a ''demonstration'' website at http://oPeer.org to illustrate how peer review and publication might be improved relative to the current model, which was designed and implemented in an era when scientific communication was either face-to-face or relied upon human delivery of ink marks on dead trees

  14. o'Peer: open peer review

    Science.gov (United States)

    Brewer, J. H.

    2014-12-01

    I have built a "demonstration" website at http://oPeer.org to illustrate how peer review and publication might be improved relative to the current model, which was designed and implemented in an era when scientific communication was either face-to-face or relied upon human delivery of ink marks on dead trees.

  15. Linking the content to demographic reach of online advertising of electronic nicotine delivery systems.

    Science.gov (United States)

    Timberlake, David S; Nikitin, Dmitriy; Garcia-Cano, Jennifer; Cino, Samantha; Savkina, Margarita; Pechmann, Cornelia

    2017-06-20

    Recent studies have separately examined the content and demographic reach of the advertising of electronic nicotine delivery systems (ENDS). No study to our knowledge has linked the two in investigating whether racial/ethnic groups are differentially exposed to the comparative messages conveyed in online ENDS advertisements. 932 unique ENDS advertisements (6311 total), which were posted on 3435 websites between December, 2009 and October, 2015, were categorized as either comparative or non-comparative with respect to the traditional cigarette. The race/ethnicity of website visitors was obtained from a proprietary source and used in constructing variables for racial/ethnic viewership. The variables for advertising content and website racial/ethnic viewership were then linked yielding a final sample of 551 unique ENDS advertisements (2498 total) on 1206 websites. A two-level hierarchical generalized linear model, used in estimating website racial/ethnic viewership as a predictor of comparative advertising, accounted for the nesting of advertisements (level 1) within 152 ENDS brands (level 2). In contrast to racial/ethnic minorities, a greater proportion of non-Hispanic whites visited websites with ENDS advertisements than the overall proportion of nonHispanic white U.S. Internet users. Yet, it was the advertisements on websites that appealed to Hispanics that had greater odds of comparing ENDS to traditional cigarettes. The lower exposure to ENDS advertising among racial/ethnic minorities versus non-Hispanic whites is consistent with survey data. Yet, the greater odds of comparative advertising of ENDS on websites that appeal to racial/ethnic minorities (ie, Hispanics) could impact the longterm health of minority smokers. This study's findings have important implications for the uptake of ENDS among minority smokers. If the comparative advertising yields greater interest and eventual use of ENDS, then minority smokers could either benefit from smoking cessation

  16. Virus-mimetic polyplex particles for systemic and inflammation-specific targeted delivery of large genetic contents.

    Science.gov (United States)

    Kang, S; Lu, K; Leelawattanachai, J; Hu, X; Park, S; Park, T; Min, I M; Jin, M M

    2013-11-01

    Systemic and target-specific delivery of large genetic contents has been difficult to achieve. Although viruses effortlessly deliver kilobase-long genome into cells, its clinical use has been hindered by serious safety concerns and the mismatch between native tropisms and desired targets. Nonviral vectors, in contrast, are limited by low gene transfer efficiency and inherent cytotoxicity. Here we devised virus-mimetic polyplex particles (VMPs) based on electrostatic self-assembly among polyanionic peptide (PAP), cationic polymer polyethyleneimine (PEI) and nucleic acids. We fused PAP to the engineered ligand-binding domain of integrin αLβ2 to target intercellular adhesion molecule-1 (ICAM-1), an inducible marker of inflammation. Fully assembled VMPs packaged large genetic contents, bound specifically to target molecules, elicited receptor-mediated endocytosis and escaped endosomal pathway, resembling intracellular delivery processes of viruses. Unlike conventional PEI-mediated transfection, molecular interaction-dependent gene delivery of VMPs was unaffected by the presence of serum and achieved higher efficiency without toxicity. By targeting overexpressed ICAM-1, VMPs delivered genes specifically to inflamed endothelial cells and macrophages both in vitro and in vivo. Simplicity and versatility of the platform and inflammation-specific delivery may open up opportunities for multifaceted gene therapy that can be translated into the clinic and treat a broad range of debilitating immune and inflammatory diseases.

  17. Content Delivery in Fog-Aided Small-Cell Systems with Offline and Online Caching: An Information—Theoretic Analysis

    Directory of Open Access Journals (Sweden)

    Seyyed Mohammadreza Azimi

    2017-07-01

    Full Text Available The storage of frequently requested multimedia content at small-cell base stations (BSs can reduce the load of macro-BSs without relying on high-speed backhaul links. In this work, the optimal operation of a system consisting of a cache-aided small-cell BS and a macro-BS is investigated for both offline and online caching settings. In particular, a binary fading one-sided interference channel is considered in which the small-cell BS, whose transmission is interfered by the macro-BS, has a limited-capacity cache. The delivery time per bit (DTB is adopted as a measure of the coding latency, that is, the duration of the transmission block, required for reliable delivery. For offline caching, assuming a static set of popular contents, the minimum achievable DTB is characterized through information-theoretic achievability and converse arguments as a function of the cache capacity and of the capacity of the backhaul link connecting cloud and small-cell BS. For online caching, under a time-varying set of popular contents, the long-term (average DTB is evaluated for both proactive and reactive caching policies. Furthermore, a converse argument is developed to characterize the minimum achievable long-term DTB for online caching in terms of the minimum achievable DTB for offline caching. The performance of both online and offline caching is finally compared using numerical results.

  18. Adaptive Multimedia Content Delivery for Context-Aware U-Learning

    Science.gov (United States)

    Zhao, Xinyou; Okamoto, Toshio

    2011-01-01

    Empowered by mobile computing, teachers and students can benefit from computing in more scenarios beyond the traditional computer classroom. But because of the much diversity of device specification, learning contents and mobile context existing today, the learners get a bad learning experience (e.g. rich contents cannot be displayed correctly)…

  19. A Generational Opportunity: A 21st Century Learning Content Delivery System

    Science.gov (United States)

    McElroy, Patrick

    2007-01-01

    This paper describes a collaboratively developed, open marketplace for network-based learning and research content for the higher education community. It explores how available technologies and standards can facilitate a new knowledge creation industry for higher education learning content that engages all stakeholders in new ways. The Advisory…

  20. Child Pornography in Peer-to-Peer Networks

    Science.gov (United States)

    Steel, Chad M. S.

    2009-01-01

    Objective: The presence of child pornography in peer-to-peer networks is not disputed, but there has been little effort done to quantify and analyze the distribution and nature of that content to-date. By performing an analysis of queries and query hits on the largest peer-to-peer network, we are able to both quantify and describe the nature of…

  1. Personalised Peer-Supported Learning: The Peer-to-Peer Learning Environment (P2PLE)

    Science.gov (United States)

    Corneli, Joseph; Mikroyannidis, Alexander

    2011-01-01

    The Peer-to-Peer Learning Environment (P2PLE) is a proposed approach to helping learners co-construct their learning environment using recommendations about people, content, and tools. The work draws on current research on PLEs, and participant observation at the Peer-to-Peer University (P2PU). We are particularly interested in ways of eliciting…

  2. Techniques and Technology to Revise Content Delivery and Model Critical Thinking in the Neuroscience Classroom.

    Science.gov (United States)

    Illig, Kurt R

    2015-01-01

    Undergraduate neuroscience courses typically involve highly interdisciplinary material, and it is often necessary to use class time to review how principles of chemistry, math and biology apply to neuroscience. Lecturing and Socratic discussion can work well to deliver information to students, but these techniques can lead students to feel more like spectators than participants in a class, and do not actively engage students in the critical analysis and application of experimental evidence. If one goal of undergraduate neuroscience education is to foster critical thinking skills, then the classroom should be a place where students and instructors can work together to develop them. Students learn how to think critically by directly engaging with course material, and by discussing evidence with their peers, but taking classroom time for these activities requires that an instructor find a way to provide course materials outside of class. Using technology as an on-demand provider of course materials can give instructors the freedom to restructure classroom time, allowing students to work together in small groups and to have discussions that foster critical thinking, and allowing the instructor to model these skills. In this paper, I provide a rationale for reducing the use of traditional lectures in favor of more student-centered activities, I present several methods that can be used to deliver course materials outside of class and discuss their use, and I provide a few examples of how these techniques and technologies can help improve learning outcomes.

  3. OpenCache : a content delivery platform for the modern internet

    OpenAIRE

    Broadbent, Matthew Harold; Race, Nicholas

    2016-01-01

    Since its inception, the World Wide Web has revolutionised the way we share information, keep in touch with each other and consume content. In the latter case, it is now used by thousands of simultaneous users to consume video, surpassing physical media as the primary means of distribution. With the rise of on-demand services and more recently, high-definition media, this popularity has not waned. To support this consumption, the underlying infrastructure has been forced to evolve at a rapid ...

  4. Content analysis of age verification, purchase and delivery methods of internet e-cigarette vendors, 2013 and 2014.

    Science.gov (United States)

    Williams, Rebecca S; Derrick, Jason; Liebman, Aliza Kate; LaFleur, Kevin; Ribisl, Kurt M

    2018-05-01

    Identify the population of internet e-cigarette vendors (IEVs) and conduct content analyses of their age verification, purchase and delivery methods in 2013 and 2014. We used multiple sources to identify IEV websites, primarily complex search algorithms scanning more than 180 million websites. In 2013, we manually screened 32 446 websites, identifying 980 IEVs, selecting the 281 most popular for content analysis. This methodology yielded 31 239 websites for screening in 2014, identifying 3096 IEVs, with 283 selected for content analysis. The proportion of vendors that sold online-only, with no retail store, dropped significantly from 2013 (74.7%) to 2014 (64.3%) (ponline age verification services (7.1% in 2013 and 8.5% in 2014), driving licences (1.8% in 2013 and 7.4% in 2014, ponline e-cigarette sales are needed, including strict age and identity verification requirements. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  5. High content analysis platform for optimization of lipid mediated CRISPR-Cas9 delivery strategies in human cells.

    Science.gov (United States)

    Steyer, Benjamin; Carlson-Stevermer, Jared; Angenent-Mari, Nicolas; Khalil, Andrew; Harkness, Ty; Saha, Krishanu

    2016-04-01

    Non-viral gene-editing of human cells using the CRISPR-Cas9 system requires optimized delivery of multiple components. Both the Cas9 endonuclease and a single guide RNA, that defines the genomic target, need to be present and co-localized within the nucleus for efficient gene-editing to occur. This work describes a new high-throughput screening platform for the optimization of CRISPR-Cas9 delivery strategies. By exploiting high content image analysis and microcontact printed plates, multi-parametric gene-editing outcome data from hundreds to thousands of isolated cell populations can be screened simultaneously. Employing this platform, we systematically screened four commercially available cationic lipid transfection materials with a range of RNAs encoding the CRISPR-Cas9 system. Analysis of Cas9 expression and editing of a fluorescent mCherry reporter transgene within human embryonic kidney cells was monitored over several days after transfection. Design of experiments analysis enabled rigorous evaluation of delivery materials and RNA concentration conditions. The results of this analysis indicated that the concentration and identity of transfection material have significantly greater effect on gene-editing than ratio or total amount of RNA. Cell subpopulation analysis on microcontact printed plates, further revealed that low cell number and high Cas9 expression, 24h after CRISPR-Cas9 delivery, were strong predictors of gene-editing outcomes. These results suggest design principles for the development of materials and transfection strategies with lipid-based materials. This platform could be applied to rapidly optimize materials for gene-editing in a variety of cell/tissue types in order to advance genomic medicine, regenerative biology and drug discovery. CRISPR-Cas9 is a new gene-editing technology for "genome surgery" that is anticipated to treat genetic diseases. This technology uses multiple components of the Cas9 system to cut out disease-causing mutations

  6. QoE-Driven Energy-Aware Multipath Content Delivery Approach for MPTCP-Based Mobile Phones

    Institute of Scientific and Technical Information of China (English)

    Yuanlong Cao; Shengyang Chen; Qinghua Liu; Yi Zuo; Hao Wang; Minghe Huang

    2017-01-01

    Mobile phones equipped with multiple wireless interfaces can increase their goodput performance by making use of concurrent transmissions over multiple paths,enabled by the Multipath TCP (MPTCP).However,utilizing MPTCP for data delivery may generally result in higher energy consumption,while the battery power of a mobile phone is limited.Thus,how to optimize the energy usage becomes very crucial and urgent.In this paper,we propose MPTCP-QE,a novel quality of experience (QoE)-driven energy-aware multipath content delivery approach for MPTCP-based mobile phones.The main idea of MPTCP-QE is described as follows:it first provides an application rate-aware energy-efficient subflow management strategy to tradeoff throughput performance and energy consumption for mobile phones;then uses an available bandwidth-aware congestion window fast recovery strategy to make a sender avoid unnecessary slow-start and utilize wireless resource quickly;and further introduces a novel receiver-driven energy-efficient SACK strategy to help a receiver possible to detect SACK loss timely and trigger loss recovery in a more energy-efficient way.The simulation results show that with the MPTCP-QE,the energy usage is enhanced while the performance level is maintained compared to existing MPTCP solutions.

  7. Behavior change theory, content and delivery of interventions to enhance adherence in chronic respiratory disease: A systematic review.

    Science.gov (United States)

    McCullough, Amanda R; Ryan, Crístín; Macindoe, Christopher; Yii, Nathan; Bradley, Judy M; O'Neill, Brenda; Elborn, J Stuart; Hughes, Carmel M

    2016-07-01

    We sought to describe the theory used to design treatment adherence interventions, the content delivered, and the mode of delivery of these interventions in chronic respiratory disease. We included randomized controlled trials of adherence interventions (compared to another intervention or control) in adults with chronic respiratory disease (8 databases searched; inception until March 2015). Two reviewers screened and extracted data: post-intervention adherence (measured objectively); behavior change theory, content (grouped into psychological, education and self-management/supportive, telemonitoring, shared decision-making); and delivery. "Effective" studies were those with p theories. Use of theory (n = 11,41%) was more common amongst effective interventions. Interventions were mainly educational, self-management or supportive interventions (n = 27,47%). They were commonly delivered by a doctor (n = 20,23%), in face-to-face (n = 48,70%), one-to-one (n = 45,78%) outpatient settings (n = 46,79%) across 2-5 sessions (n = 26,45%) for 1-3 months (n = 26,45%). Doctors delivered a lower proportion (n = 7,18% vs n = 13,28%) and pharmacists (n = 6,15% vs n = 1,2%) a higher proportion of effective than ineffective interventions. Risk of bias was high in >1 domain (n = 43, 93%) in most studies. Behavior change theory was more commonly used to design effective interventions. Few adherence interventions have been developed using theory, representing a gap between intervention design recommendations and research practice. Copyright © 2016 Elsevier Ltd. All rights reserved.

  8. Content

    DEFF Research Database (Denmark)

    Keiding, Tina Bering

    secondary levels. In subject matter didactics, the question of content is more developed, but it is still mostly confined to teaching on lower levels. As for higher education didactics, discussions on selection of content are almost non-existent on the programmatic level. Nevertheless, teachers are forced...... curriculum, in higher education, and to generate analytical categories and criteria for selection of content, which can be used for systematic didactical reflection. The larger project also concerns reflection on and clarification of the concept of content, including the relation between content at the level......Aim, content and methods are fundamental categories of both theoretical and practical general didactics. A quick glance in recent pedagogical literature on higher education, however, reveals a strong preoccupation with methods, i.e. how teaching should be organized socially (Biggs & Tang, 2007...

  9. Potential benefits and harms of a peer support social network service on the internet for people with depressive tendencies: qualitative content analysis and social network analysis.

    Science.gov (United States)

    Takahashi, Yoshimitsu; Uchida, Chiyoko; Miyaki, Koichi; Sakai, Michi; Shimbo, Takuro; Nakayama, Takeo

    2009-07-23

    Internet peer support groups for depression are becoming popular and could be affected by an increasing number of social network services (SNSs). However, little is known about participant characteristics, social relationships in SNSs, and the reasons for usage. In addition, the effects of SNS participation on people with depression are rather unknown. The aim was to explore the potential benefits and harms of an SNS for depression based on a concurrent triangulation design of mixed methods strategy, including qualitative content analysis and social network analysis. A cross-sectional Internet survey of participants, which involved the collection of SNS log files and a questionnaire, was conducted in an SNS for people with self-reported depressive tendencies in Japan in 2007. Quantitative data, which included user demographics, depressive state, and assessment of the SNS (positive vs not positive), were statistically analyzed. Descriptive contents of responses to open-ended questions concerning advantages and disadvantages of SNS participation were analyzed using the inductive approach of qualitative content analysis. Contents were organized into codes, concepts, categories, and a storyline based on the grounded theory approach. Social relationships, derived from data of "friends," were analyzed using social network analysis, in which network measures and the extent of interpersonal association were calculated based on the social network theory. Each analysis and integration of results were performed through a concurrent triangulation design of mixed methods strategy. There were 105 participants. Median age was 36 years, and 51% (36/71) were male. There were 37 valid respondents; their number of friends and frequency of accessing the SNS were significantly higher than for invalid/nonrespondents (P = .008 and P = .003). Among respondents, 90% (28/31) were mildly, moderately, or severely depressed. Assessment of the SNS was performed by determining the access

  10. Effects of training peer tutors in content knowledge versus tutoring skills on giving feedback to help tutees’ complex tasks

    NARCIS (Netherlands)

    Hsiao, Amy; Brouns, Francis; Van Bruggen, Jan; Sloep, Peter

    2015-01-01

    This study aims to investigate the effectiveness of training tutors in content knowledge of a particular domain versus training them in tutoring skills of pedagogical knowledge when tutoring on a complex tutee task. Forty-seven tutor-tutee pairs of fourth year secondary school students were created

  11. Effects of Training Peer Tutors in Content Knowledge versus Tutoring Skills on Giving Feedback to Help Tutees' Complex Tasks

    Science.gov (United States)

    Hsiao, Ya Ping; Brouns, Francis; van Bruggen, Jan; Sloep, Peter B.

    2015-01-01

    This study aimed to investigate the effectiveness of training tutors in content knowledge of a particular domain versus training them in tutoring skills of pedagogical knowledge when tutoring on a complex tutee task. Forty-seven tutor--tutee pairs of fourth-year secondary school students were created and assigned to one of the two treatments.…

  12. Spirometry training courses: Content, delivery and assessment - a position statement from the Australian and New Zealand Society of Respiratory Science.

    Science.gov (United States)

    Swanney, Maureen P; O'Dea, Christopher A; Ingram, Emily R; Rodwell, Leanne T; Borg, Brigitte M

    2017-10-01

    Spirometry training courses are provided by health services and training organizations to enable widespread use of spirometry testing for patient care or for monitoring health. The primary outcome of spirometry training courses should be to enable participants to perform spirometry to international best practice, including testing of subjects, quality assurance and interpretation of results. Where valid results are not achieved or quality assurance programmes identify errors in devices, participants need to be able to adequately manage these issues in accordance with best practice. It is important that potential participants are confident in the integrity of the course they attend and that the course meets their expectations in terms of training. This position statement lists the content that the Australian and New Zealand Society of Respiratory Science (ANZSRS) has identified as required in a spirometry training course to adequately meet the primary outcomes mentioned above. The content requirements outlined in this position statement are based on the current international spirometry standards set out by the American Thoracic Society and European Respiratory Society. Furthermore, recommendations around course delivery for theoretical and practical elements of spirometry testing and post-course assessment are outlined in this statement. © 2017 The Authors. Respirology published by John Wiley & Sons Australia, Ltd on behalf of Asian Pacific Society of Respirology.

  13. The Primary Care Electronic Library: RSS feeds using SNOMED-CT indexing for dynamic content delivery.

    Science.gov (United States)

    Robinson, Judas; de Lusignan, Simon; Kostkova, Patty; Madge, Bruce; Marsh, A; Biniaris, C

    2006-01-01

    Rich Site Summary (RSS) feeds are a method for disseminating and syndicating the contents of a website using extensible mark-up language (XML). The Primary Care Electronic Library (PCEL) distributes recent additions to the site in the form of an RSS feed. When new resources are added to PCEL, they are manually assigned medical subject headings (MeSH terms), which are then automatically mapped to SNOMED-CT terms using the Unified Medical Language System (UMLS) Metathesaurus. The library is thus searchable using MeSH or SNOMED-CT. Our syndicate partner wished to have remote access to PCEL coronary heart disease (CHD) information resources based on SNOMED-CT search terms. To pilot the supply of relevant information resources in response to clinically coded requests, using RSS syndication for transmission between web servers. Our syndicate partner provided a list of CHD SNOMED-CT terms to its end-users, a list which was coded according to UMLS specifications. When the end-user requested relevant information resources, this request was relayed from our syndicate partner's web server to the PCEL web server. The relevant resources were retrieved from the PCEL MySQL database. This database is accessed using a server side scripting language (PHP), which enables the production of dynamic RSS feeds on the basis of Source Asserted Identifiers (CODEs) contained in UMLS. Retrieving resources using SNOMED-CT terms using syndication can be used to build a functioning application. The process from request to display of syndicated resources took less than one second. The results of the pilot illustrate that it is possible to exchange data between servers using RSS syndication. This method could be utilised dynamically to supply digital library resources to a clinical system with SNOMED-CT data used as the standard of reference.

  14. Anonymity in Peer-assisted CDNs: Inference Attacks and Mitigation

    Directory of Open Access Journals (Sweden)

    Jia Yaoqi

    2016-10-01

    Full Text Available The peer-assisted CDN is a new content distribution paradigm supported by CDNs (e.g., Akamai, which enables clients to cache and distribute web content on behalf of a website. Peer-assisted CDNs bring significant bandwidth savings to website operators and reduce network latency for users. In this work, we show that the current designs of peer-assisted CDNs expose clients to privacy-invasive attacks, enabling one client to infer the set of browsed resources of another client. To alleviate this, we propose an anonymous peer-assisted CDN (APAC, which employs content delivery while providing initiator anonymity (i.e., hiding who sends the resource request and responder anonymity (i.e., hiding who responds to the request for peers. APAC can be a web service, compatible with current browsers and requiring no client-side changes. Our anonymity analysis shows that our APAC design can preserve a higher level of anonymity than state-of-the-art peer-assisted CDNs. In addition, our evaluation demonstrates that APAC can achieve desired performance gains.

  15. Clinical Nurse Specialists Guide Staff Nurses to Promote Practice Accountability Through Peer Review.

    Science.gov (United States)

    Semper, Julie; Halvorson, Betty; Hersh, Mary; Torres, Clare; Lillington, Linda

    2016-01-01

    The aim of the study was to describe the clinical nurse specialist role in developing and implementing a staff nurse education program to promote practice accountability using peer review principles. Peer review is essential for professional nursing practice demanding a significant culture change. Clinical nurse specialists in a Magnet-designated community hospital were charged with developing a staff nurse peer review education program. Peer review is a recognized mechanism of professional self-regulation to ensure delivery of quality care. The American Nurses Association strongly urges incorporating peer review in professional nursing practice models. Clinical nurse specialists play a critical role in educating staff nurses about practice accountability. Clinical nurse specialists developed an education program guided by the American Nurses Association's principles of peer review. A baseline needs assessment identified potential barriers and learning needs. Content incorporated tools and strategies to build communication skills, collaboration, practice change, and peer accountability. The education program resulted in increased staff nurse knowledge about peer review and application of peer review principles in practice. Clinical nurse specialists played a critical role in helping staff nurses understand peer review and its application to practice. The clinical nurse specialist role will continue to be important in sustaining the application of peer review principles in practice.

  16. Student Attitudes toward Information Systems Graduate Program Design and Delivery

    Science.gov (United States)

    Thouin, Mark F.; Hefley, William E.; Raghunathan, Srinivasan

    2018-01-01

    This study examines student preferences regarding graduate management information systems (MIS) education. One hundred and eighty four graduate students responded to a survey exploring student attitudes towards degree program content, delivery format, and peer group interaction. Study results indicate that students prefer a program with an even…

  17. Peer Programs: An In-Depth Look at Peer Helping: Planning, Implementation, and Administration.

    Science.gov (United States)

    Tindall, Judith A.

    The goal of this book is to provide a program designed to teach peer helping professionals a method and rationale for training peer helpers. Peer helping programs are a major delivery system of affective education or deliberate psychological education. Peer helping programs can provide prevention, intervention, and support systems for people.…

  18. The Myth of Peer Pressure.

    Science.gov (United States)

    Ungar, Michael T.

    2000-01-01

    The construct of peer pressure was examined as part of a qualitative study of the determinants of mental health for 41 high-risk adolescents. While the concept of peer pressure enables adults to explain youths' troubling behaviors, content analysis of the participants' accounts of their lives reveals peer pressure to be a myth. (Author/MKA)

  19. Content Development, Presentation and Delivery for eLearning in Nuclear Science and Engineering: Experiences with Emerging Authoring Tools

    International Nuclear Information System (INIS)

    Bamford, S.; Afriyie, P.; Comlan, E.

    2016-01-01

    Full text: Transference of explicit knowledge starts from content development, and proceeds with packaging and delivery. A comparative study of some selected authoring tools for knowledge creation in Nuclear Sciences and Engineering education is being carried out at the School of Nuclear and Allied Sciences in Accra, Ghana. These authoring tools include commercial software (Macromedia Suite CS6, Learning 6.0) as well as freeware software (Xerte, eXe). A course, X-ray Fluorescence Spectrometry (NSAP 603), at the postgraduate School of Nuclear and Allied Sciences (SNAS), has been selected for migration onto an eLearning platform. Different authoring tools have been employed to create some ICT-based modules for teaching and learning. This paper therefore shares the experiences realized in moving from course syllabus to digitized modules, integrating pedagogical considerations, the strengths and weakness of the selected authoring tools, user-interactivity and usability of the modules produced. The need and the basis for the adoption of an appropriate authoring tool for creation of scientific, mathematical, and engineering documents and learning materials has also been discussed. Leveraging on ICT to produce pedagogically sound learning materials for eLearning platforms promotes interests of students in nuclear sciences, and ensures continuity in producing qualified professionals. (author

  20. Efficient data replication for the delivery of high-quality video content over P2P VoD advertising networks

    Science.gov (United States)

    Ho, Chien-Peng; Yu, Jen-Yu; Lee, Suh-Yin

    2011-12-01

    Recent advances in modern television systems have had profound consequences for the scalability, stability, and quality of transmitted digital data signals. This is of particular significance for peer-to-peer (P2P) video-on-demand (VoD) related platforms, faced with an immediate and growing demand for reliable service delivery. In response to demands for high-quality video, the key objectives in the construction of the proposed framework were user satisfaction with perceived video quality and the effective utilization of available resources on P2P VoD networks. This study developed a peer-based promoter to support online advertising in P2P VoD networks based on an estimation of video distortion prior to the replication of data stream chunks. The proposed technology enables the recovery of lost video using replicated stream chunks in real time. Load balance is achieved by adjusting the replication level of each candidate group according to the degree-of-distortion, thereby enabling a significant reduction in server load and increased scalability in the P2P VoD system. This approach also promotes the use of advertising as an efficient tool for commercial promotion. Results indicate that the proposed system efficiently satisfies the given fault tolerances.

  1. Managing Supply and Demand of Bandwidth in Peer-to-Peer Communities

    NARCIS (Netherlands)

    Meulpolder, M.

    2011-01-01

    On today's Internet, millions of people participate in peer-to-peer communities where they share content such as audio and video files. Contrary to websites such as Youtube, which rely on large and expensive computer servers to store and deliver all of their content, peer-to-peer communities rely on

  2. Potential Benefits and Harms of a Peer Support Social Network Service on the Internet for People With Depressive Tendencies: Qualitative Content Analysis and Social Network Analysis

    Science.gov (United States)

    Takahashi, Yoshimitsu; Uchida, Chiyoko; Miyaki, Koichi; Sakai, Michi; Shimbo, Takuro

    2009-01-01

    Background Internet peer support groups for depression are becoming popular and could be affected by an increasing number of social network services (SNSs). However, little is known about participant characteristics, social relationships in SNSs, and the reasons for usage. In addition, the effects of SNS participation on people with depression are rather unknown. Objective The aim was to explore the potential benefits and harms of an SNS for depression based on a concurrent triangulation design of mixed methods strategy, including qualitative content analysis and social network analysis. Methods A cross-sectional Internet survey of participants, which involved the collection of SNS log files and a questionnaire, was conducted in an SNS for people with self-reported depressive tendencies in Japan in 2007. Quantitative data, which included user demographics, depressive state, and assessment of the SNS (positive vs not positive), were statistically analyzed. Descriptive contents of responses to open-ended questions concerning advantages and disadvantages of SNS participation were analyzed using the inductive approach of qualitative content analysis. Contents were organized into codes, concepts, categories, and a storyline based on the grounded theory approach. Social relationships, derived from data of “friends,” were analyzed using social network analysis, in which network measures and the extent of interpersonal association were calculated based on the social network theory. Each analysis and integration of results were performed through a concurrent triangulation design of mixed methods strategy. Results There were 105 participants. Median age was 36 years, and 51% (36/71) were male. There were 37 valid respondents; their number of friends and frequency of accessing the SNS were significantly higher than for invalid/nonrespondents (P = .008 and P = .003). Among respondents, 90% (28/31) were mildly, moderately, or severely depressed. Assessment of the SNS was

  3. Sharing "Sex Secrets" on Facebook: A Content Analysis of Youth Peer Communication and Advice Exchange on Social Media about Sexual Health and Intimate Relations.

    Science.gov (United States)

    Yeo, Tien Ee Dominic; Chu, Tsz Hang

    2017-09-01

    Social media present opportunities and challenges for sexual health communication among young people. This study is one of the first to examine the actual use of Facebook for peer communication of sexual health and intimate relations. Content analysis of 2186 anonymous posts in a "sex secrets" Facebook page unofficially affiliated with a Hong Kong University shows gender balance among posters, inclusiveness of sexual minorities, and frequent sharing of personal experiences in storytelling or advice seeking. The findings illuminate young people's health concerns regarding condom use, avoiding pain, birth control, sexually transmitted infections, and body appearance. Relational concerns found entailed sexual practices, expectations, and needs-predominantly within dating relationships and include not wanting to have sex. Supportive communication among users was prevalent. A majority of posts involved advice solicitation in the form of request for opinion or information (30.38%), request for advice (13.68%), situation comparison (5.40%), or problem disclosure (9.97%). Comments to the advice-seeking posts were mostly supportive (69.49%); nonsupportive responses (unsolicited messages and gratuitous humor) were concentrated with ambiguous advice solicitations. These findings hold implications for understanding self-disclosure of intimate concerns within social networks, and attuning sexual health intervention on social media to young people's actual needs and advice preferences.

  4. Why do people use electronic nicotine delivery systems (electronic cigarettes)? A content analysis of Twitter, 2012-2015.

    Science.gov (United States)

    Ayers, John W; Leas, Eric C; Allem, Jon-Patrick; Benton, Adrian; Dredze, Mark; Althouse, Benjamin M; Cruz, Tess B; Unger, Jennifer B

    2017-01-01

    The reasons for using electronic nicotine delivery systems (ENDS) are poorly understood and are primarily documented by expensive cross-sectional surveys that use preconceived close-ended response options rather than allowing respondents to use their own words. We passively identify the reasons for using ENDS longitudinally from a content analysis of public postings on Twitter. All English language public tweets including several ENDS terms (e.g., "e-cigarette" or "vape") were captured from the Twitter data stream during 2012 and 2015. After excluding spam, advertisements, and retweets, posts indicating a rationale for vaping were retained. The specific reasons for vaping were then inferred based on a supervised content analysis using annotators from Amazon's Mechanical Turk. During 2012 quitting combustibles was the most cited reason for using ENDS with 43% (95%CI 39-48) of all reason-related tweets cited quitting combustibles, e.g., "I couldn't quit till I tried ecigs," eclipsing the second most cited reason by more than double. Other frequently cited reasons in 2012 included ENDS's social image (21%; 95%CI 18-25), use indoors (14%; 95%CI 11-17), flavors (14%; 95%CI 11-17), safety relative to combustibles (9%; 95%CI 7-11), cost (3%; 95%CI 2-5) and favorable odor (2%; 95%CI 1-3). By 2015 the reasons for using ENDS cited on Twitter had shifted. Both quitting combustibles and use indoors significantly declined in mentions to 29% (95%CI 24-33) and 12% (95%CI 9-16), respectively. At the same time, social image increased to 37% (95%CI 32-43) and lack of odor increased to 5% (95%CI 2-5), the former leading all cited reasons in 2015. Our data suggest the reasons people vape are shifting away from cessation and toward social image. The data also show how the ENDS market is responsive to a changing policy landscape. For instance, smoking indoors was less frequently cited in 2015 as indoor smoking restrictions became more common. Because the data and analytic approach are

  5. Why do people use electronic nicotine delivery systems (electronic cigarettes)? A content analysis of Twitter, 2012-2015

    Science.gov (United States)

    Ayers, John W.; Leas, Eric C.; Allem, Jon-Patrick; Benton, Adrian; Dredze, Mark; Althouse, Benjamin M.; Cruz, Tess B.; Unger, Jennifer B.

    2017-01-01

    The reasons for using electronic nicotine delivery systems (ENDS) are poorly understood and are primarily documented by expensive cross-sectional surveys that use preconceived close-ended response options rather than allowing respondents to use their own words. We passively identify the reasons for using ENDS longitudinally from a content analysis of public postings on Twitter. All English language public tweets including several ENDS terms (e.g., “e-cigarette” or “vape”) were captured from the Twitter data stream during 2012 and 2015. After excluding spam, advertisements, and retweets, posts indicating a rationale for vaping were retained. The specific reasons for vaping were then inferred based on a supervised content analysis using annotators from Amazon’s Mechanical Turk. During 2012 quitting combustibles was the most cited reason for using ENDS with 43% (95%CI 39–48) of all reason-related tweets cited quitting combustibles, e.g., “I couldn’t quit till I tried ecigs,” eclipsing the second most cited reason by more than double. Other frequently cited reasons in 2012 included ENDS’s social image (21%; 95%CI 18–25), use indoors (14%; 95%CI 11–17), flavors (14%; 95%CI 11–17), safety relative to combustibles (9%; 95%CI 7–11), cost (3%; 95%CI 2–5) and favorable odor (2%; 95%CI 1–3). By 2015 the reasons for using ENDS cited on Twitter had shifted. Both quitting combustibles and use indoors significantly declined in mentions to 29% (95%CI 24–33) and 12% (95%CI 9–16), respectively. At the same time, social image increased to 37% (95%CI 32–43) and lack of odor increased to 5% (95%CI 2–5), the former leading all cited reasons in 2015. Our data suggest the reasons people vape are shifting away from cessation and toward social image. The data also show how the ENDS market is responsive to a changing policy landscape. For instance, smoking indoors was less frequently cited in 2015 as indoor smoking restrictions became more common

  6. Using Feedback Requests to Actively Involve Assessees in Peer Assessment: Effects on the Assessor's Feedback Content and Assessee's Agreement with Feedback

    Science.gov (United States)

    Voet, Michiel; Gielen, Mario; Boelens, Ruth; De Wever, Bram

    2018-01-01

    Criticizing the common approach of supporting peer assessment through providing assessors with an explication of assessment criteria, recent insights on peer assessment call for support focusing on assessees, who often assume a passive role of receivers of feedback. Feedback requests, which require assessees to formulate their specific needs for…

  7. Contents

    Directory of Open Access Journals (Sweden)

    Editor IJRED

    2012-11-01

    Full Text Available International Journal of Renewable Energy Development www.ijred.com Volume 1             Number 3            October 2012                ISSN 2252- 4940   CONTENTS OF ARTICLES page Design and Economic Analysis of a Photovoltaic System: A Case Study 65-73 C.O.C. Oko , E.O. Diemuodeke, N.F. Omunakwe, and E. Nnamdi     Development of Formaldehyde Adsorption using Modified Activated Carbon – A Review 75-80 W.D.P Rengga , M. Sudibandriyo and M. Nasikin     Process Optimization for Ethyl Ester Production in Fixed Bed Reactor Using Calcium Oxide Impregnated Palm Shell Activated Carbon (CaO/PSAC 81-86 A. Buasri , B. Ksapabutr, M. Panapoy and N. Chaiyut     Wind Resource Assessment in Abadan Airport in Iran 87-97 Mojtaba Nedaei       The Energy Processing by Power Electronics and its Impact on Power Quality 99-105 J. E. Rocha and B. W. D. C. Sanchez       First Aspect of Conventional Power System Assessment for High Wind Power Plants Penetration 107-113 A. Merzic , M. Music, and M. Rascic   Experimental Study on the Production of Karanja Oil Methyl Ester and Its Effect on Diesel Engine 115-122 N. Shrivastava,  , S.N. Varma and M. Pandey  

  8. SCI peer health coach influence on self-management with peers: a qualitative analysis.

    Science.gov (United States)

    Skeels, S E; Pernigotti, D; Houlihan, B V; Belliveau, T; Brody, M; Zazula, J; Hasiotis, S; Seetharama, S; Rosenblum, D; Jette, A

    2017-11-01

    A process evaluation of a clinical trial. To describe the roles fulfilled by peer health coaches (PHCs) with spinal cord injury (SCI) during a randomized controlled trial research study called 'My Care My Call', a novel telephone-based, peer-led self-management intervention for adults with chronic SCI 1+ years after injury. Connecticut and Greater Boston Area, MA, USA. Directed content analysis was used to qualitatively examine information from 504 tele-coaching calls, conducted with 42 participants with SCI, by two trained SCI PHCs. Self-management was the focus of each 6-month PHC-peer relationship. PHCs documented how and when they used the communication tools (CTs) and information delivery strategies (IDSs) they developed for the intervention. Interaction data were coded and analyzed to determine PHC roles in relation to CT and IDS utilization and application. PHCs performed three principal roles: Role Model, Supporter, and Advisor. Role Model interactions included CTs and IDSs that allowed PHCs to share personal experiences of managing and living with an SCI, including sharing their opinions and advice when appropriate. As Supporters, PHCs used CTs and IDSs to build credible relationships based on dependability and reassuring encouragement. PHCs fulfilled the unique role of Advisor using CTs and IDSs to teach and strategize with peers about SCI self-management. The SCI PHC performs a powerful, flexible role in promoting SCI self-management among peers. Analysis of PHC roles can inform the design of peer-led interventions and highlights the importance for the provision of peer mentor training.

  9. Self-evaluation and peer-feedback of medical students' communication skills using a web-based video annotation system. Exploring content and specificity.

    Science.gov (United States)

    Hulsman, Robert L; van der Vloodt, Jane

    2015-03-01

    Self-evaluation and peer-feedback are important strategies within the reflective practice paradigm for the development and maintenance of professional competencies like medical communication. Characteristics of the self-evaluation and peer-feedback annotations of medical students' video recorded communication skills were analyzed. Twenty-five year 4 medical students recorded history-taking consultations with a simulated patient, uploaded the video to a web-based platform, marked and annotated positive and negative events. Peers reviewed the video and self-evaluations and provided feedback. Analyzed were the number of marked positive and negative annotations and the amount of text entered. Topics and specificity of the annotations were coded and analyzed qualitatively. Students annotated on average more negative than positive events. Additional peer-feedback was more often positive. Topics most often related to structuring the consultation. Students were most critical about their biomedical topics. Negative annotations were more specific than positive annotations. Self-evaluations were more specific than peer-feedback and both show a significant correlation. Four response patterns were detected that negatively bias specificity assessment ratings. Teaching students to be more specific in their self-evaluations may be effective for receiving more specific peer-feedback. Videofragmentrating is a convenient tool to implement reflective practice activities like self-evaluation and peer-feedback to the classroom in the teaching of clinical skills. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  10. The effect of peer-group size on the delivery of feedback in basic life support refresher training: a cluster randomized controlled trial.

    Science.gov (United States)

    Cho, Youngsuk; Je, Sangmo; Yoon, Yoo Sang; Roh, Hye Rin; Chang, Chulho; Kang, Hyunggoo; Lim, Taeho

    2016-07-04

    Students are largely providing feedback to one another when instructor facilitates peer feedback rather than teaching in group training. The number of students in a group affect the learning of students in the group training. We aimed to investigate whether a larger group size increases students' test scores on a post-training test with peer feedback facilitated by instructor after video-guided basic life support (BLS) refresher training. Students' one-rescuer adult BLS skills were assessed by a 2-min checklist-based test 1 year after the initial training. A cluster randomized controlled trial was conducted to evaluate the effect of student number in a group on BLS refresher training. Participants included 115 final-year medical students undergoing their emergency medicine clerkship. The median number of students was 8 in the large groups and 4 in the standard group. The primary outcome was to examine group differences in post-training test scores after video-guided BLS training. Secondary outcomes included the feedback time, number of feedback topics, and results of end-of-training evaluation questionnaires. Scores on the post-training test increased over three consecutive tests with instructor-led peer feedback, but not differ between large and standard groups. The feedback time was longer and number of feedback topics generated by students were higher in standard groups compared to large groups on the first and second tests. The end-of-training questionnaire revealed that the students in large groups preferred the smaller group size compared to their actual group size. In this BLS refresher training, the instructor-led group feedback increased the test score after tutorial video-guided BLS learning, irrespective of the group size. A smaller group size allowed more participations in peer feedback.

  11. Peer Review

    DEFF Research Database (Denmark)

    Avital, Michel

    2018-01-01

    that the community’s hunger for publication accompanies only a modest appetite for providing the necessary support to sustain the consequent increase in peer-review load. The advent of blockchain technologies and the proliferation of cryptocurrencies presents an opportunity to develop a token-based peer...

  12. Energy-efficient peer-to-peer networking for constrained-capacity mobile environments

    OpenAIRE

    Harjula, E. (Erkki)

    2016-01-01

    Abstract Energy efficiency is a powerful measure for promoting sustainability in technological evolution and ensuring feasible battery life of end-user devices in mobile computing. Peer-to-peer technology provides decentralized and self-organizing architecture for distributing content between devices in networks that scale up almost infinitely. However, peer-to-peer networking may require lots of resources from peer nodes, which in turn may lead to increased energy consumption on mobile d...

  13. Secure Peer-to-Peer Networks for Scientific Information Sharing, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Our goal is to adapt the peer-to-peer technology (P2P), which has been overwhelmingly successful in popular content distribution, as the basis for development of...

  14. Leveraging position bias to improve peer recommendation.

    Directory of Open Access Journals (Sweden)

    Kristina Lerman

    Full Text Available With the advent of social media and peer production, the amount of new online content has grown dramatically. To identify interesting items in the vast stream of new content, providers must rely on peer recommendation to aggregate opinions of their many users. Due to human cognitive biases, the presentation order strongly affects how people allocate attention to the available content. Moreover, we can manipulate attention through the presentation order of items to change the way peer recommendation works. We experimentally evaluate this effect using Amazon Mechanical Turk. We find that different policies for ordering content can steer user attention so as to improve the outcomes of peer recommendation.

  15. Peer Reviewer

    OpenAIRE

    Baru Mansjur, Mansjur

    2016-01-01

    - Peer Reviewer Effects Of Histomorohometric, Bone Tu Implant Contac and Asseointegration On a novel Hybrid Micro/Nano Topografhy Modfie Dental Implant in The Mandibular Canine Premolar Area Of The Mini Pigs

  16. Interdisciplinary Education and Critical Thinking in Religion and History: The Delivery of Two "Content-Based" Linked Courses

    Science.gov (United States)

    McDougall, Roseanne; LaMonica, Jeffrey

    2007-01-01

    Primary sources in religion and history enable first year university students to connect "content-based" linked courses in the core curriculum. Fifty-four first year university students in three separate pairs of courses worked in teams to present oral critical reports on texts related to the Reformation, the Enlightenment, and the…

  17. DPT Student Perceptions of the Physical Therapist Assistant's Role: Effect of Collaborative Case-Based Learning Compared to Traditional Content Delivery and Clinical Experience.

    Science.gov (United States)

    Colgrove, Yvonne M; VanHoose, Lisa D

    2017-01-01

    Doctor of physical therapy (DPT) student learning about role delineation of physical therapist assistants (PTAs) is essential to ethical and legal practice. Survey assessment of three DPT student cohorts compared collaborative interprofessional case-based learning with PTA students to traditional curriculum delivery strategies. Control cohorts were assessed one time. The intervention group was assessed pre-intervention, immediately post-intervention, and after completing a full-time clinical experience. The case-based learning covered 46% of survey content, allowing for the assessment of content-specific material and potential learning through collaboration. Following the educational intervention, the intervention group improved significantly in areas inside and outside the case-based study content, outscoring both control groups on 25-34% of the survey items. Following the clinical experience, the intervention group declined answer accuracy for patient evaluation and treatment implementation, suggesting unlearning. Improvement in the administrative section was observed after the clinical experience. Perceptions of the tasks within the PTA role were diminished while tasks outside the scope of practice appeared clarified following the clinical experience. While case-based collaborative intraprofessional learning proves effective in student learning about the PTA role, changes following the clinical experience raise questions about the influence of the clinical environment on learning and the practical application of recently learned knowledge.

  18. Arginine-rich cross-linking peptides with different SV40 nuclear localization signal content as vectors for intranuclear DNA delivery.

    Science.gov (United States)

    Bogacheva, Mariia; Egorova, Anna; Slita, Anna; Maretina, Marianna; Baranov, Vladislav; Kiselev, Anton

    2017-11-01

    The major barriers for intracellular DNA transportation by cationic polymers are their toxicity, poor endosomal escape and inefficient nuclear uptake. Therefore, we designed novel modular peptide-based carriers modified with SV40 nuclear localization signal (NLS). Core peptide consists of arginine, histidine and cysteine residues for DNA condensation, endosomal escape promotion and interpeptide cross-linking, respectively. We investigated three polyplexes with different NLS content (10 mol%, 50 mol% and 90 mol% of SV40 NLS) as vectors for intranuclear DNA delivery. All carriers tested were able to condense DNA, to protect it from DNAase I and were not toxic to the cells. We observed that cell cycle arrest by hydroxyurea did not affect transfection efficacy of NLS-modified carriers which we confirmed using quantitative confocal microscopy analysis. Overall, peptide carrier modified with 90 mol% of SV40 NLS provided efficient transfection and nuclear uptake in non-dividing cells. Thus, incorporation of NLS into arginine-rich cross-linking peptides is an adequate approach to the development of efficient intranuclear gene delivery vehicles. Copyright © 2017 Elsevier Ltd. All rights reserved.

  19. Preregistration research training of speech and language therapists in the United Kingdom: a nationwide audit of quantity, content and delivery.

    Science.gov (United States)

    Pagnamenta, Emma; Joffe, Victoria L

    2018-04-24

    To carry out an audit of the quantity and content of research teaching on UK preregistration speech and language therapy (SLT) degree programmes. Lecturers delivering research teaching from each higher education institution providing preregistration training were invited to complete an online survey. Amount of research teaching, content of research teaching (including final-year projects), perceived confidence by staff of graduates in research awareness, research activity and leading research. Responses were received for 14 programmes (10 undergraduate and four postgraduate), representing 73% of all undergraduate courses and 44% of all postgraduate courses in the United Kingdom. Fifty percent of courses included over 30 h of research teaching, with wide variability across both undergraduate and postgraduate courses in number of hours, modules and credits devoted to research. There was no association between quantity of research teaching and perception of adequacy of quantity of teaching. Critical appraisal, statistical software and finding literature were the most common topics taught. Conversely, service evaluation and audit was the least common topic covered. All institutions provided a final-year project, with 11/14 requiring empirical research. Perceived confidence of graduates was higher for research awareness than active research and leading research, but this varied across institutions. There was a strong correlation between lecturers' perceived confidence of graduates in research awareness and number of hours of research teaching. Despite the requirements for healthcare professionals to engage in evidence-based practice, the amount and nature of research training in preregistration courses for SLTs in the United Kingdom is highly variable. Levels of perceived confidence of graduates were also variable, not only for active participation in research, and for leading research, but also for research awareness. This has implications for the ability of SLTs to

  20. Information Propagation in Peer-to-Peer Networking : Modeling and Empirical Studies

    NARCIS (Netherlands)

    Tang, S.

    2010-01-01

    Although being a young technology, peer-to-peer (P2P) networking has spurred dramatic evolution on the Internet over the recent twenty years. Unlike traditional server-client mode, P2P networking applications are user-centric. Users (peers) generate their own content and share it with others across

  1. Peer Review

    DEFF Research Database (Denmark)

    Dannesboe, Christian

    Peer-teknikker brugt i undervisning vinder frem mange steder. Teknikkerne er skalerbare til meget store hold af studerende, og ses derfor som et af de værktøjer, der med fordel kan introduceres som underviser, når holdstørrelserne vokser....

  2. Peer Relations in Peer Learning

    Science.gov (United States)

    Riese, Hanne; Samara, Akylina; Lillejord, Solvi

    2012-01-01

    Over the last decades, much research on peer learning practices has been conducted. Quantitative, experimental designs focusing on problems of cause and effect dominate. Consequently, effects on achievement are well documented, as is the influence of different conditions on the effect rate. In spite of the general acknowledgment of the importance…

  3. Peer learning a pedagogical approach to enhance online learning: A qualitative exploration.

    Science.gov (United States)

    Raymond, Anita; Jacob, Elisabeth; Jacob, Darren; Lyons, Judith

    2016-09-01

    Flexible online programs are becoming increasingly popular method of education for students, allowing them to complete programs in their own time and cater for lifestyle differences. A mixture of delivery modes is one way which allows for enhanced learning. Peer learning is another method of learning which is shown to foster collaboration and prepare healthcare students for their future careers. This paper reports on a project to combine peer and online learning to teach pharmacology to nursing students. To explore undergraduate nursing student opinions of working in peer groups for online learning sessions in a pharmacology course. A qualitative study utilising a self-reported questionnaire. A rural campus of an Australian university. Second year nursing students enrolled in a Bachelor of Nursing Program. A hard copy questionnaire was distributed to all students who attended the final semester lecture for the course. Content analysis of open-ended survey questions was used to identify themes in the written data. Of the 61 students enrolled in the nursing subject, 35 students chose to complete the survey (57%). Students reported a mixed view of the benefits and disadvantages of peer online learning. Sixty 6% (66%) of students liked peer online learning, whilst 29% disliked it and 6% were undecided. Convenience and ease of completion were reported as the most common reason to like peer online learning, whilst Information Technology issues, communication and non-preferred learning method were reasons for not liking peer online learning. Peer online learning groups' acted as one further method to facilitate student learning experiences. Blending peer online learning with traditional face-to-face learning increases the variety of learning methods available to students to enhance their overall learning experience. Copyright © 2016 Elsevier Ltd. All rights reserved.

  4. Peer to Peer Information Retrieval: An Overview

    NARCIS (Netherlands)

    Tigelaar, A.S.; Hiemstra, D.; Trieschnigg, D.

    2012-01-01

    Peer-to-peer technology is widely used for file sharing. In the past decade a number of prototype peer-to-peer information retrieval systems have been developed. Unfortunately, none of these have seen widespread real- world adoption and thus, in contrast with file sharing, information retrieval is

  5. Peer to Peer Information Retrieval: An Overview

    NARCIS (Netherlands)

    Tigelaar, A.S.; Hiemstra, Djoerd; Trieschnigg, Rudolf Berend

    Peer-to-peer technology is widely used for file sharing. In the past decade a number of prototype peer-to-peer information retrieval systems have been developed. Unfortunately, none of these have seen widespread real- world adoption and thus, in contrast with file sharing, information retrieval is

  6. The "peer" in "peer review"

    Science.gov (United States)

    Perry, Gad; Bertoluci, Jaime; Bury, R. Bruce; Hansen, Robert W.; Jehle, Robert; Measey, John; Moon, Brad R.; Muths, Erin L.; Zuffi, Marco A.L.

    2011-01-01

    Peer review is the best available mechanism for assessing and improving the quality of scientific work. As herpetology broadens its disciplinary and geographic boundaries, high-quality external review is ever more essential. We are writing this editorial jointly because the review process has become increasingly difficult. The resulting delays slow publication times, negatively affect performance reviews, tenure, promotions, and grant proposal success. It harms authors, agencies, and institutions (Ware 2011).

  7. Dietary interventions in overweight and obese pregnant women: a systematic review of the content, delivery, and outcomes of randomized controlled trials.

    Science.gov (United States)

    Flynn, Angela C; Dalrymple, Kathryn; Barr, Suzanne; Poston, Lucilla; Goff, Louise M; Rogozińska, Ewelina; van Poppel, Mireille N M; Rayanagoudar, Girish; Yeo, SeonAe; Barakat Carballo, Ruben; Perales, Maria; Bogaerts, Annick; Cecatti, Jose G; Dodd, Jodie; Owens, Julie; Devlieger, Roland; Teede, Helena; Haakstad, Lene; Motahari-Tabari, Narges; Tonstad, Serena; Luoto, Riitta; Guelfi, Kym; Petrella, Elisabetta; Phelan, Suzanne; Scudeller, Tânia T; Hauner, Hans; Renault, Kristina; Sagedal, Linda Reme; Stafne, Signe N; Vinter, Christina; Astrup, Arne; Geiker, Nina R W; McAuliffe, Fionnuala M; Mol, Ben W; Thangaratinam, Shakila

    2016-05-01

    Interventions targeting maternal obesity are a healthcare and public health priority. The objective of this review was to evaluate the adequacy and effectiveness of the methodological designs implemented in dietary intervention trials for obesity in pregnancy. A systematic review of the literature, consistent with PRISMA guidelines, was performed as part of the International Weight Management in Pregnancy collaboration. Thirteen randomized controlled trials, which aimed to modify diet and physical activity in overweight and obese pregnant women, were identified. There was significant variability in the content, delivery, and dietary assessment methods of the dietary interventions examined. A number of studies demonstrated improved dietary behavior in response to diet and/or lifestyle interventions. Nine studies reduced gestational weight gain. This review reveals large methodological variability in dietary interventions to control gestational weight gain and improve clinical outcomes in overweight and obese pregnant women. This lack of consensus limits the ability to develop clinical guidelines and apply the evidence in clinical practice. © The Author(s) 2016. Published by Oxford University Press on behalf of the International Life Sciences Institute. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  8. HyperPeer

    DEFF Research Database (Denmark)

    Larsen, R.D.; Bouvin, N.O.

    2004-01-01

    This paper presents HyperPeer, a framework for developing peer-to-peer based hypermedia. The distribution of hypermedia structures is handled through a peer-to-peer (P2P) network, allowing for highly scalable sharing between users. A central challenge of all decentralized systems is to locate...

  9. Peer observation of teaching as a faculty development tool

    Directory of Open Access Journals (Sweden)

    Sullivan Peter B

    2012-05-01

    Full Text Available Abstract Background Peer observation of Teaching involves observers providing descriptive feedback to their peers on learning and teaching practice as a means to improve quality of teaching. This study employed and assessed peer observation as a constructive, developmental process for members of a Pediatric Teaching Faculty. Methods This study describes how peer observation was implemented as part of a teaching faculty development program and how it was perceived by teachers. The PoT process was divided into 4 stages: pre-observation meeting, observation, post-observation feedback and reflection. Particular care was taken to ensure that teachers understood that the observation and feedback was a developmental and not an evaluative process. Twenty teachers had their teaching peer observed by trained Faculty members and gave an e-mail ‘sound-bite’ of their perceptions of the process. Teaching activities included lectures, problem-based learning, small group teaching, case-based teaching and ward-based teaching sessions. Results Teachers were given detailed verbal and written feedback based on the observer’s and students’ observations. Teachers’ perceptions were that PoT was useful and relevant to their teaching practice. Teachers valued receiving feedback and viewed PoT as an opportunity for insight and reflection. The process of PoT was viewed as non-threatening and teachers thought that PoT enhanced the quality of their teaching, promoted professional development and was critical for Faculty development. Conclusions This study demonstrated that PoT can be used in a constructive way to improve course content and delivery, to support and encourage medical teachers, and to reinforce good teaching.

  10. Dosage Parameters in Pediatric Outcome Studies Reported in 9 Peer-Reviewed Occupational Therapy Journals from 2008 to 2014: A Content Analysis

    Science.gov (United States)

    Gee, Bryan M.; Lloyd, Kimberly; Devine, Nancy; Tyrrell, Erin; Evans, Trisha; Hill, Rebekah; Dineen, Stacee; Magalogo, Kristin

    2016-01-01

    Occupational therapists determine the dosage when establishing the plan of care for their pediatric clients. A content analysis was conducted using 123 pediatric occupational therapy outcomes studies from 9 scholarly international occupational therapy journals. The parameters of dosage were calculated using descriptive statistics in order to obtain a representation of dosage available within the current collage of pediatric occupational therapy outcomes studies. The results revealed that most studies reported portions of dosage parameters within the published studies. The average findings for the subcomponents related to dosage were session length (minutes) M = 58.7, duration of plan of care (weeks) M = 12.1, session frequency (per week) M = 3.4, and total hours of therapy (hours) M = 18.1. This first attempt at describing and calculating dosage related to pediatric occupational therapy practice indicates that evidence is lacking within the published literature to adequately guide OT dosage decisions. Further research related to dosage in pediatric occupational therapy practice is needed. PMID:26949547

  11. Modular design, application architecture, and usage of a self-service model for enterprise data delivery: The Duke Enterprise Data Unified Content Explorer (DEDUCE)

    Science.gov (United States)

    Horvath, Monica M.; Rusincovitch, Shelley A.; Brinson, Stephanie; Shang, Howard C.; Evans, Steve; Ferranti, Jeffrey M.

    2015-01-01

    Purpose Data generated in the care of patients are widely used to support clinical research and quality improvement, which has hastened the development of self-service query tools. User interface design for such tools, execution of query activity, and underlying application architecture have not been widely reported, and existing tools reflect a wide heterogeneity of methods and technical frameworks. We describe the design, application architecture, and use of a self-service model for enterprise data delivery within Duke Medicine. Methods Our query platform, the Duke Enterprise Data Unified Content Explorer (DEDUCE), supports enhanced data exploration, cohort identification, and data extraction from our enterprise data warehouse (EDW) using a series of modular environments that interact with a central keystone module, Cohort Manager (CM). A data-driven application architecture is implemented through three components: an application data dictionary, the concept of “smart dimensions”, and dynamically-generated user interfaces. Results DEDUCE CM allows flexible hierarchies of EDW queries within a grid-like workspace. A cohort “join” functionality allows switching between filters based on criteria occurring within or across patient encounters. To date, 674 users have been trained and activated in DEDUCE, and logon activity shows a steady increase, with variability between months. A comparison of filter conditions and export criteria shows that these activities have different patterns of usage across subject areas. Conclusions Organizations with sophisticated EDWs may find that users benefit from development of advanced query functionality, complimentary to the user interfaces and infrastructure used in other well-published models. Driven by its EDW context, the DEDUCE application architecture was also designed to be responsive to source data and to allow modification through alterations in metadata rather than programming, allowing an agile response to source

  12. Modular design, application architecture, and usage of a self-service model for enterprise data delivery: the Duke Enterprise Data Unified Content Explorer (DEDUCE).

    Science.gov (United States)

    Horvath, Monica M; Rusincovitch, Shelley A; Brinson, Stephanie; Shang, Howard C; Evans, Steve; Ferranti, Jeffrey M

    2014-12-01

    Data generated in the care of patients are widely used to support clinical research and quality improvement, which has hastened the development of self-service query tools. User interface design for such tools, execution of query activity, and underlying application architecture have not been widely reported, and existing tools reflect a wide heterogeneity of methods and technical frameworks. We describe the design, application architecture, and use of a self-service model for enterprise data delivery within Duke Medicine. Our query platform, the Duke Enterprise Data Unified Content Explorer (DEDUCE), supports enhanced data exploration, cohort identification, and data extraction from our enterprise data warehouse (EDW) using a series of modular environments that interact with a central keystone module, Cohort Manager (CM). A data-driven application architecture is implemented through three components: an application data dictionary, the concept of "smart dimensions", and dynamically-generated user interfaces. DEDUCE CM allows flexible hierarchies of EDW queries within a grid-like workspace. A cohort "join" functionality allows switching between filters based on criteria occurring within or across patient encounters. To date, 674 users have been trained and activated in DEDUCE, and logon activity shows a steady increase, with variability between months. A comparison of filter conditions and export criteria shows that these activities have different patterns of usage across subject areas. Organizations with sophisticated EDWs may find that users benefit from development of advanced query functionality, complimentary to the user interfaces and infrastructure used in other well-published models. Driven by its EDW context, the DEDUCE application architecture was also designed to be responsive to source data and to allow modification through alterations in metadata rather than programming, allowing an agile response to source system changes. Copyright © 2014 Elsevier

  13. Performance Evaluation of Peer-to-Peer Progressive Download in Broadband Access Networks

    Science.gov (United States)

    Shibuya, Megumi; Ogishi, Tomohiko; Yamamoto, Shu

    P2P (Peer-to-Peer) file sharing architectures have scalable and cost-effective features. Hence, the application of P2P architectures to media streaming is attractive and expected to be an alternative to the current video streaming using IP multicast or content delivery systems because the current systems require expensive network infrastructures and large scale centralized cache storage systems. In this paper, we investigate the P2P progressive download enabling Internet video streaming services. We demonstrated the capability of the P2P progressive download in both laboratory test network as well as in the Internet. Through the experiments, we clarified the contribution of the FTTH links to the P2P progressive download in the heterogeneous access networks consisting of FTTH and ADSL links. We analyzed the cause of some download performance degradation occurred in the experiment and discussed about the effective methods to provide the video streaming service using P2P progressive download in the current heterogeneous networks.

  14. Technology enhanced peer learning and peer assessment

    DEFF Research Database (Denmark)

    Henriksen, Christian Bugge; Bregnhøj, Henrik; Rosthøj, Susanne

    2016-01-01

    This paper explores the application of learning designs featuring formalised and structured technology enhanced peer learning. These include student produced learning elements, peer review discussions and peer assessment in the BSc/MSc level summer course Restoration of European Ecosystems...... and Freshwaters (REEF), the Master thesis preparation seminars for the Master of Public Health (MPH) and the MOOC course Global Environmental Management (GEM). The application of student produced learning elements and peer review discussions is investigated by analyzing quotes from course evaluations...... and performing focus group interviews. The application of peer assessment is investigated by analyzing the agreement of peer assessment between students assessing the same assignment. Our analyses confirm previous research on the value of peer learning and peer assessment and we argue that there could also...

  15. Technology enhanced peer learning and peer assessment

    DEFF Research Database (Denmark)

    Henriksen, Christian Bugge; Bregnhøj, Henrik; Rosthøj, Susanne

    2016-01-01

    This paper explores the application of learning designs featuring formalised and structured technology enhanced peer learning. These include student produced learning elements, peer review discussions and peer assessment in the BSc/MSc level summer course Restoration of European Ecosystems and Fr...... be a huge benefit from developing learning design patterns that facilitate informal peer learning and reinforce knowledge sharing practices.......This paper explores the application of learning designs featuring formalised and structured technology enhanced peer learning. These include student produced learning elements, peer review discussions and peer assessment in the BSc/MSc level summer course Restoration of European Ecosystems...... and Freshwaters (REEF), the Master thesis preparation seminars for the Master of Public Health (MPH) and the MOOC course Global Environmental Management (GEM). The application of student produced learning elements and peer review discussions is investigated by analyzing quotes from course evaluations...

  16. "I sleep better at night:" How peer review of radiation treatment plans indirectly improves quality of care across radiation treatment programs.

    Science.gov (United States)

    Brundage, Michael D; Hart, Margaret; O'Donnell, Jennifer; Reddeman, Lindsay; Gutierrez, Eric; Foxcroft, Sophie; Warde, Padraig

    Peer review of radiation oncology treatment plans is increasingly recognized as an important component of quality assurance in radiation treatment planning and delivery. Peer review of treatment plans can directly improve the quality of those plans and can also have indirect effects on radiation treatment programs. We undertook a systematic, qualitative approach to describing the indirect benefits of peer review, factors that were seen to facilitate or act as barriers to the implementation of peer review, and strategies to address these barriers across a provincial jurisdiction of radiation oncology programs (ROPs). Semistructured qualitative interviews were held with radiation oncology department heads and radiation therapy managers (or delegates) in all 14 ROPs in Ontario, Canada. We used a theoretically guided phenomenological qualitative approach to design and analyze the interview content. Themes were recorded by 2 independent reviewers, and any discordance was resolved by consensus. A total of 28 interviews were completed with 32 interviewees. Twenty-two unique themes addressed perceived benefits of peer review, relating to either peer review structure (n = 3), process (n = 9), or outcome (n = 10). Of these 22 themes, 19 related to indirect benefits to ROPs. In addition, 18 themes related to factors that facilitated peer review activities and 30 themes related to key barriers to implementing peer review were identified. Findings were consistent with, and enhanced the understanding of, previous survey-based assessments of the benefits and challenges of implementing peer review programs. Although challenges and concerns regarding the implementation of peer review were evident, the indirect benefits to radiation programs are numerous, far outweigh the implementation challenges, and strongly complement the direct individual-patient benefits that result from peer review quality assurance of radiation treatment plans. Copyright © 2016. Published by Elsevier Inc.

  17. Peer Moderation of Asynchronous Online Discussions: An Exploratory Study of Peer E-Moderating Behaviour

    Science.gov (United States)

    Ghadirian, Hajar; Ayub, Ahmad Fauzi Mohd

    2017-01-01

    This study explored patterns of e-moderating behaviour students performed when they were assigned as peer moderators of asynchronous online discussions in a reciprocal manner. Eighty-four students from an undergraduate blended course were observed during a 7-week-long online discussions. Using quantitative content analysis peer moderators'…

  18. Electronic delivery of alternative contents in cinemas before the digital era: the case of theater television in the US exhibition market in the 1940s and 1950s

    Directory of Open Access Journals (Sweden)

    Kira Kitsopanidou

    2012-08-01

    strategies of the 1950s and 20th Century-Fox’s vision of the possibilities of electronic delivery for motion picture exhibition. This paper aims to shed more light in one of the less known chapters of the history of motion picture presentation in the US, whose renewed interest today is closely linked to the digital media revolution. As the exhibition market transitions to digital delivery, the deployment of alternative contents, including gaming, sporting events and concerts, is converting the cinema screen into a multimedia center, a giant high definition television screen. How far is this idea from the theater television concept of the 1950s which Spyros Skouras qualified as “the greatest stimulant our industry has had since the advent of sound” ?

  19. Peer-to-Peer Service Sharing Platforms

    DEFF Research Database (Denmark)

    Andersson, Magnus; Hjalmarsson, Anders; Avital, Michel

    2013-01-01

    The sharing economy has been growing continuously in the last decade thanks to the proliferation of internet-based platforms that allow people to disintermediate the traditional commercial channels and to share excess resources and trade with one another effectively at a reasonably low transaction...... cost. Whereas early peer-to-peer platforms were designed to enable file sharing and goods trading, we recently witness the emergence of a new breed of peer-to-peer platforms that are designed for ordinary service sharing. Ordinary services entail intangible provisions and are defined as an economic...... activity that generates immaterial benefits and does not result in ownership of material goods. Based on a structured analysis of 41 internet-based rideshare platforms, we explore and layout the unique characteristics of peer-to-peer service sharing platforms based on three distinct temporal patterns...

  20. The Use of Social Media and Mobile applications in content delivery for the MY NASA DATA and SCOOL Projects in support of Education and Outreach Initiatives

    Science.gov (United States)

    Lewis, P. M.; Oostra, D.; Moore, S. W.; Crecelius, S. A.

    2011-12-01

    MND project. This brings in the need for the proper selection of a social media tool that is age-appropriate for the students, should they choose to participate. As with the MND project, there has been proper utilization of social media through careful selection and monitoring of the associated metrics. The NASA CERES S'COOL project utilizes YouTube, Flickr, and is also included in the Observe Your World blog to reach out to current and perspective participants. Through the utilization of social media tools, the MY NASA DATA and S'COOL projects are able to keep the participating audiences involved and informed. In general, the use of Web 2.0 and mobile applications has allowed the projects to keep participants engaged in and up-to-date with current information. With the planned implementation of mobile applications to assist in content delivery and data submission, participants will have a mobile, easy to utilize source of scientific data and information. By monitoring current media tools metrics, we are able to monitor use and ingestion of information. The use of such tools and metrics allows us to better serve our target audience and shift focus, if needed, to the most up-to-date and popular social media tools.

  1. Peer reviewing e-learning: opportunities, challenges, and solutions.

    Science.gov (United States)

    Ruiz, Jorge G; Candler, Chris; Teasdale, Thomas A

    2007-05-01

    Peer review is the foundation of academic publication and a necessary step in the scrutiny of any scholarly work. Simply defined, peer review is the attentive, unbiased assessment of any scholarly work that is submitted for formal scrutiny. Although medical school faculty increasingly use technology in clinical teaching, e-learning materials are often not subjected to a rigorous peer review process. The authors contrast peer review of e-learning materials with that of print materials, describe peer review issues regarding e-learning materials, propose approaches to address the challenges of peer review of e-learning materials, and outline directions for refinement of the e-learning peer review process. At its core, the peer review of e-learning materials should not differ substantially from that of traditional manuscripts. However, e-learning introduces new demands that impel reviewers to consider aspects that are unique to educational technology, including pedagogy, format, usability, navigation, interactivity, delivery, ease of updating, distribution, and access. Four approaches are offered to ease the burden and improve the quality of e-learning peer review: develop peer review training, embrace multidisciplinary peer review, develop guidelines, and provide incentives and compensation. The authors conclude with suggestions about peer review research.

  2. Delivery presentations

    Science.gov (United States)

    Pregnancy - delivery presentation; Labor - delivery presentation; Occiput posterior; Occiput anterior; Brow presentation ... The mother can walk, rock, and try different delivery positions during labor to help encourage the baby ...

  3. Digital portfolio og peer to peer feedback

    DEFF Research Database (Denmark)

    Jacobsen, Ditte; Bahrenscheer, Jesper Glarborg

    2017-01-01

    studerende og øget transfer mellem teori og praksis. Artiklen tager afsæt i erfaringerne fra udvikling, anvendelse og evaluering af den digitale portfolio og peer to peer feedback. Portfolien er digital og tilknyttet Metropols Learning Management System. De studerende uploader individuelt ugentligt deres...

  4. Mobility Helps Peer-to-Peer Security

    DEFF Research Database (Denmark)

    Capkun, Srdjan; Hubaux, Jean-Pierre; Buttyan, Levente

    2006-01-01

    We propose a straightforward technique to provide peer-to-peer security in mobile networks. We show that far from being a hurdle, mobility can be exploited to set up security associations among users. We leverage on the temporary vicinity of users, during which appropriate cryptographic protocols...

  5. Simple Peer-to-Peer SIP Privacy

    Science.gov (United States)

    Koskela, Joakim; Tarkoma, Sasu

    In this paper, we introduce a model for enhancing privacy in peer-to-peer communication systems. The model is based on data obfuscation, preventing intermediate nodes from tracking calls, while still utilizing the shared resources of the peer network. This increases security when moving between untrusted, limited and ad-hoc networks, when the user is forced to rely on peer-to-peer schemes. The model is evaluated using a Host Identity Protocol-based prototype on mobile devices, and is found to provide good privacy, especially when combined with a source address hiding scheme. The contribution of this paper is to present the model and results obtained from its use, including usability considerations.

  6. NCHRP peer exchange 2008.

    Science.gov (United States)

    2008-09-01

    Peer exchanges for state department of transportation (DOT) research programs originated with : the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA). That federal legislation : required the states to conduct periodic peer exchanges to...

  7. MO-E-18C-01: Open Access Web-Based Peer-To-Peer Training and Education in Radiotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Pawlicki, T [UC San Diego Medical Center, La Jolla, CA (United States); Brown, D; Dunscombe, P [Tom Baker Cancer Centre, Calgary, AB (Canada); Mutic, S [Washington University School of Medicine, Saint Louis, MO (United States)

    2014-06-15

    Purpose: Current training and education delivery models have limitations which result in gaps in clinical proficiency with equipment, procedures, and techniques. Educational and training opportunities offered by vendors and professional societies are by their nature not available at point of need or for the life of clinical systems. The objective of this work is to leverage modern communications technology to provide peer-to-peer training and education for radiotherapy professionals, in the clinic and on demand, as they undertake their clinical duties. Methods: We have developed a free of charge web site ( https://i.treatsafely.org ) using the Google App Engine and datastore (NDB, GQL), Python with AJAX-RPC, and Javascript. The site is a radiotherapy-specific hosting service to which user-created videos illustrating clinical or physics processes and other relevant educational material can be uploaded. Efficient navigation to the material of interest is provided through several RT specific search tools and videos can be scored by users, thus providing comprehensive peer review of the site content. The site also supports multilingual narration\\translation of videos, a quiz function for competence assessment and a library function allowing groups or institutions to define their standard operating procedures based on the video content. Results: The website went live in August 2013 and currently has over 680 registered users from 55 countries; 27.2% from the United States, 9.8% from India, 8.3% from the United Kingdom, 7.3% from Brazil, and 47.5% from other countries. The users include physicists (57.4%), Oncologists (12.5%), therapists (8.2%) and dosimetrists (4.8%). There are 75 videos to date including English, Portuguese, Mandarin, and Thai. Conclusion: Based on the initial acceptance of the site, we conclude that this open access web-based peer-to-peer tool is fulfilling an important need in radiotherapy training and education. Site functionality should expand in

  8. MO-E-18C-01: Open Access Web-Based Peer-To-Peer Training and Education in Radiotherapy

    International Nuclear Information System (INIS)

    Pawlicki, T; Brown, D; Dunscombe, P; Mutic, S

    2014-01-01

    Purpose: Current training and education delivery models have limitations which result in gaps in clinical proficiency with equipment, procedures, and techniques. Educational and training opportunities offered by vendors and professional societies are by their nature not available at point of need or for the life of clinical systems. The objective of this work is to leverage modern communications technology to provide peer-to-peer training and education for radiotherapy professionals, in the clinic and on demand, as they undertake their clinical duties. Methods: We have developed a free of charge web site ( https://i.treatsafely.org ) using the Google App Engine and datastore (NDB, GQL), Python with AJAX-RPC, and Javascript. The site is a radiotherapy-specific hosting service to which user-created videos illustrating clinical or physics processes and other relevant educational material can be uploaded. Efficient navigation to the material of interest is provided through several RT specific search tools and videos can be scored by users, thus providing comprehensive peer review of the site content. The site also supports multilingual narration\\translation of videos, a quiz function for competence assessment and a library function allowing groups or institutions to define their standard operating procedures based on the video content. Results: The website went live in August 2013 and currently has over 680 registered users from 55 countries; 27.2% from the United States, 9.8% from India, 8.3% from the United Kingdom, 7.3% from Brazil, and 47.5% from other countries. The users include physicists (57.4%), Oncologists (12.5%), therapists (8.2%) and dosimetrists (4.8%). There are 75 videos to date including English, Portuguese, Mandarin, and Thai. Conclusion: Based on the initial acceptance of the site, we conclude that this open access web-based peer-to-peer tool is fulfilling an important need in radiotherapy training and education. Site functionality should expand in

  9. Specificity of peer conflicts in adolescence

    Directory of Open Access Journals (Sweden)

    Petrović Danijela

    2009-01-01

    Full Text Available The results of the survey conducted on the sample of 530 adolescents are presented in this paper. The sample included two age groups (13 and 16 years. The research was realized in 11 town and 26 schools. The method of the retrospection of the conflict contents, with one week retrospection interval, was used to research the perception of the conflict characteristics. The distinctive characteristics and the effects of the peer conflicts in adolescence have been identified by comparing them to the conflicts with friends, romantic partners, siblings and teachers. According to the results peer conflicts have certain specificity. Although less frequent than conflicts with parents and siblings, the peer conflicts in adolescence are widen phenomenon - on average, the adolescents get in conflict with their peers more than 13 times in a week, almost twice in a day. The most frequent causes are teasing and inappropriate jokes, deliberate provoking, gossips, insults and not respecting the differences in opinion. Peers follow the teachers as the least important persons in the conflict. Compared to the conflicts in other types of the social relations, the conflicts with peers are the least uncomfortable. Yielding is the least, competition the most present resolution strategy in peer conflicts. As well as the most conflicts in this age conflicts with peers are short time episode.

  10. Peer Influence and Recovery

    Science.gov (United States)

    Collier, Crystal; Simpson, Shelly; Najera, John; Weiner, Lauren

    2012-01-01

    Research has shown that peer influence can be negative, by increasing the likelihood that a youth will engage in high-risk behaviors and make risky decisions. However, peer influence can also be positive and protect a youth from these same high-risk activities. This article examines the extent of peer influence and then describes the Alternative…

  11. Exploring employment readiness through mock job interview and workplace role-play exercises: comparing youth with physical disabilities to their typically developing peers.

    Science.gov (United States)

    Lindsay, Sally; McDougall, Carolyn; Sanford, Robyn; Menna-Dack, Dolly; Kingsnorth, Shauna; Adams, Tracey

    2015-01-01

    To assess performance differences in a mock job interview and workplace role-play exercise for youth with disabilities compared to their typically developing peers. We evaluated a purposive sample of 31 youth (15 with a physical disability and 16 typically developing) on their performance (content and delivery) in employment readiness role-play exercises. Our findings show significant differences between youth with disabilities compared to typically developing peers in several areas of the mock interview content (i.e. responses to the questions: "tell me about yourself", "how would you provide feedback to someone not doing their share" and a problem-solving scenario question) and delivery (i.e. voice clarity and mean latency). We found no significant differences in the workplace role-play performances of youth with and without disabilities. Youth with physical disabilities performed poorer in some areas of a job interview compared to their typically developing peers. They could benefit from further targeted employment readiness training. Clinicians should: Coach youth with physical disability on how to "sell" their abilities to potential employers and encourage youth to get involved in volunteer activities and employment readiness training programs. Consider using mock job interviews and other employment role-play exercises as assessment and training tools for youth with physical disabilities. Involve speech pathologists in the development of employment readiness programs that address voice clarity as a potential delivery issue.

  12. Incorporation of photosenzitizer hypericin into synthetic lipid-based nano-particles for drug delivery and large unilamellar vesicles with different content of cholesterol

    Science.gov (United States)

    Joniova, Jaroslava; Blascakova, Ludmila; Jancura, Daniel; Nadova, Zuzana; Sureau, Franck; Miskovsky, Pavol

    2014-08-01

    Low-density lipoproteins (LDL) and high-density lipoproteins (HDL) are attractive natural occurring vehicles for drug delivery and targeting to cancer tissues. The capacity of both types of the lipoproteins to bind hydrophobic drugs and their functionality as drug carriers have been examined in several studies and it has been also shown that mixing of anticancer drugs with LDL or HDL before administration led to an increase of cytotoxic effects of the drugs in the comparison when the drugs were administered alone. However, a difficult isolation of the lipoproteins in large quantity from a biological organism as well as a variability of the composition and size of these molecules makes practical application of LDL and HDL as drug delivery systems quite complicated. Synthetic LDL and HDL and large unilamellar vesicles (LUV) are potentially suitable candidates to substitute the native lipoproteins for targeted and effective drug delivery. In this work, we have studied process of an association of potent photosensitizer hypericin (Hyp) with synthetic lipid-based nano-particles (sLNP) and large unilamellar vesicles (LUV) containing various amount of cholesterol. Cholesterol is one of the main components of both LDL and HDL particles and its presence in biological membranes is known to be a determining factor for membrane properties. It was found that the behavior of Hyp incorporation into sLNP particles with diameter ca ~ 90 nm is qualitatively very similar to that of Hyp incorporation into LDL (diameter ca. 22 nm) and these particles are able to enter U-87 MG cells by endocytosis. The presence of cholesterol in LUV influences the capacity of these vesicles to incorporate Hyp into their structure.

  13. An innovation in curriculum content and delivery of cancer education within undergraduate nurse training in the UK. What impact does this have on the knowledge, attitudes and confidence in delivering cancer care?

    Science.gov (United States)

    Edwards, Deborah; Anstey, Sally; Kelly, Daniel; Hopkinson, Jane

    2016-04-01

    This was an evaluation of an innovation in curriculum content and delivery within undergraduate nursing education in the UK. Its purpose was to investigate the effect on knowledge, attitudes and confidence in delivering cancer care. The study design was a pre-test post-test survey design with a comparison group. Participants were two cohorts of undergraduate nursing students (n(intervention) = 84, n(comparison) = 91). The intervention cohort were exposed to a new 3.5 day programme of cancer education, coproduced with patients, carers and health professionals, which focused on cancer as a life changing long-term condition. The comparison cohort had been exposed to a 2 day programme produced by a lecturer. Following exposure to the new model for the delivery of undergraduate nurse cancer education, the intervention cohort demonstrated good overall knowledge of the impact of cancer, more positive attitudes towards cancer treatment and more confidence in their ability to deliver cancer care. Attitudes were more positive and confidence in ability to support cancer patients at all stages of the cancer journey were greater than in the comparison group. Insights gained into the cancer patient and carer perspectives were highly valued. This study has found that a new model for the delivery of cancer education focusing on survivorship and delivered in partnership with patients, carers and clinicians, may improve knowledge, attitudes and confidence in the delivery of cancer care. Further work is now needed, using a more robust experimental design, to investigate the generalisability of the results to other education programs. Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.

  14. A Model Of Critical Peer Feedback To Facilitate Business English Writing Using Qzone Weblogs Among Chinese Undergraduates

    OpenAIRE

    Gao Xianwei; Moses Samuel; Adelina Asmawi

    2016-01-01

    The purpose of this study was to explore critical thinking skills in peer feedback for Business English writing in order to facilitate the quality of peer feedback and quality of Business English writing. “Critical peer feedback” was conceptualized with the integration of “critical thinking” and “peer feedback” in order to improve the quality of peer feedback. This study explored the process, content and factors of critical peer feedback through Qzone weblogs, and summarized the model of crit...

  15. An exploratory study of relative and incremental information content of two non-financial performance measures: Field study evidence on absence frequency and on-time delivery

    NARCIS (Netherlands)

    Wiersma, E.

    2008-01-01

    In this exploratory field study, I test the relative and incremental information content of two non-financial performance measures compared to financial performance measures for future financial performance. The proprietary database used is from the contracts of the managers of 27 responsibility

  16. Clarifying the role of the mental health peer specialist in Massachusetts, USA: insights from peer specialists, supervisors and clients.

    Science.gov (United States)

    Cabral, Linda; Strother, Heather; Muhr, Kathy; Sefton, Laura; Savageau, Judith

    2014-01-01

    Mental health peer specialists develop peer-to-peer relationships of trust with clients to improve their health and well-being, functioning in ways similar to community health workers. Although the number of peer specialists in use has been increasing, their role in care teams is less defined than that of the community health worker. This qualitative study explored how the peer specialist role is defined across different stakeholder groups, the expectations for this role and how the peer specialist is utilised and integrated across different types of mental health services. Data were collected through interviews and focus groups conducted in Massachusetts with peer specialists (N = 44), their supervisors (N = 14) and clients (N = 10) between September 2009 and January 2011. A consensus coding approach was used and all data outputs were reviewed by the entire team to identify themes. Peer specialists reported that their most important role is to develop relationships with clients and that having lived mental health experience is a key element in creating that bond. They also indicated that educating staff about the recovery model and peer role is another important function. However, they often felt a lack of clarity about their role within their organisation and care team. Supervisors valued the unique experience that peer specialists bring to an organisation. However, without a defined set of expectations for this role, they struggled with training, guiding and evaluating their peer specialist staff. Clients reported that the shared lived experience is important for the relationship and that working with a peer specialist has improved their mental health. With increasing support for person-centred integrated healthcare delivery models, the demand for mental health peer specialist services will probably increase. Therefore, clearer role definition, as well as workforce development focused on team orientation, is necessary for peer specialists to be fully integrated

  17. Hierarchical Data Distribution Scheme for Peer-to-Peer Networks

    Science.gov (United States)

    Bhushan, Shashi; Dave, M.; Patel, R. B.

    2010-11-01

    In the past few years, peer-to-peer (P2P) networks have become an extremely popular mechanism for large-scale content sharing. P2P systems have focused on specific application domains (e.g. music files, video files) or on providing file system like capabilities. P2P is a powerful paradigm, which provides a large-scale and cost-effective mechanism for data sharing. P2P system may be used for storing data globally. Can we implement a conventional database on P2P system? But successful implementation of conventional databases on the P2P systems is yet to be reported. In this paper we have presented the mathematical model for the replication of the partitions and presented a hierarchical based data distribution scheme for the P2P networks. We have also analyzed the resource utilization and throughput of the P2P system with respect to the availability, when a conventional database is implemented over the P2P system with variable query rate. Simulation results show that database partitions placed on the peers with higher availability factor perform better. Degradation index, throughput, resource utilization are the parameters evaluated with respect to the availability factor.

  18. Peer-to-peer milk donors' and recipients' experiences and perceptions of donor milk banks.

    Science.gov (United States)

    Gribble, Karleen D

    2013-07-01

    To explore the intersection of peer-to-peer milk sharing and donor milk banks. A descriptive survey design containing closed and open-ended questions was used to examine women's perceptions of peer-to-peer milk sharing and milk banking. Closed-ended questions were analyzed using descriptive statistics and conventional qualitative content analysis was used to analyze open-ended responses. Participants were recruited via the Facebook sites of two online milk-sharing networks (Human Milk 4 Human Babies and Eats on Feet). Ninety-eight milk donors and 41 milk recipients who had donated or received breast milk in an arrangement that was facilitated via the Internet. One half of donor recipients could not donate to a milk bank because there were no banks local to them or they did not qualify as donors. Other respondents did not donate to a milk bank because they viewed the process as difficult, had philosophical objections to milk banking, or had a philosophical attraction to peer sharing. Most donor respondents felt it was important to know the circumstances of their milk recipients. No recipient respondents had obtained milk from a milk bank; it was recognized that they would not qualify for banked milk or that banked milk was cost prohibitive. Peer-to-peer milk donors and recipients may differ from milk bank donors and recipients in significant ways. Cooperation between milk banks and peer sharing networks could benefit both groups. © 2013 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses.

  19. Peers and adolescent smoking.

    Science.gov (United States)

    Kobus, Kimberly

    2003-05-01

    There is a considerable body of empirical research that has identified adolescent peer relationships as a primary factor involved in adolescent cigarette smoking. Despite this large research base, many questions remain unanswered about the mechanisms by which peers affect youths' smoking behavior. Understanding these processes of influence is key to the development of prevention and intervention programs designed to address adolescent smoking as a significant public health concern. In this paper, theoretical frameworks and empirical findings are reviewed critically which inform the current state of knowledge regarding peer influences on teenage smoking. Specifically, social learning theory, primary socialization theory, social identity theory and social network theory are discussed. Empirical findings regarding peer influence and selection, as well as multiple reference points in adolescent friendships, including best friendships, romantic relationships, peer groups and social crowds, are also reviewed. Review of this work reveals the contribution that peers have in adolescents' use of tobacco, in some cases promoting use, and in other cases deterring it. This review also suggests that peer influences on smoking are more subtle than commonly thought and need to be examined more carefully, including consideration of larger social contexts, e.g. the family, neighborhood, and media. Recommendations for future investigations are made, as well as suggestions for specific methodological approaches that offer promise for advancing our knowledge of the contribution of peers on adolescent tobacco use.

  20. Peer Review of Teaching

    OpenAIRE

    Fernandez, Charles E.; Yu, Jenny

    2007-01-01

    This article provides an overview and description of peer review of teaching for faculty members and administrators who would like to implement a peer review program. This may include classroom and clinical settings. A brief overview, procedure, and a teaching competence evaluation rubric are provided

  1. Near-Peer Teaching Strategy in a Large Human Anatomy Course: Perceptions of Near-Peer Instructors

    Science.gov (United States)

    Reyes-Hernández, Cynthia Guadalupe; Carmona Pulido, Juan Manuel; De la Garza Chapa, Roberto Isaac; Serna Vázquez, Ruth Patricia; Alcalá Briones, Ricardo Daniel; Plasencia Banda, Perla Marina; Villarreal Silva, Eliud Enrique; Jacobo Baca, Guillermo; de la Garza Castro, Oscar; Elizondo Omaña, Rodrigo Enrique; Guzmán López, Santos

    2015-01-01

    Near-peer teaching (NPT) is a strategy in which senior students assume the instructor role with junior peers (mentees). Senior students develop unique skills and knowledge through NPT, an experience which extends their learning beyond content mastery. Different teaching modules featuring NPT were utilized in the human anatomy course at the School…

  2. Secure Peer-to-Peer Networks for Scientific Information Sharing

    Science.gov (United States)

    Karimabadi, Homa

    2012-01-01

    The most common means of remote scientific collaboration today includes the trio of e-mail for electronic communication, FTP for file sharing, and personalized Web sites for dissemination of papers and research results. With the growth of broadband Internet, there has been a desire to share large files (movies, files, scientific data files) over the Internet. Email has limits on the size of files that can be attached and transmitted. FTP is often used to share large files, but this requires the user to set up an FTP site for which it is hard to set group privileges, it is not straightforward for everyone, and the content is not searchable. Peer-to-peer technology (P2P), which has been overwhelmingly successful in popular content distribution, is the basis for development of a scientific collaboratory called Scientific Peer Network (SciPerNet). This technology combines social networking with P2P file sharing. SciPerNet will be a standalone application, written in Java and Swing, thus insuring portability to a number of different platforms. Some of the features include user authentication, search capability, seamless integration with a data center, the ability to create groups and social networks, and on-line chat. In contrast to P2P networks such as Gnutella, Bit Torrent, and others, SciPerNet incorporates three design elements that are critical to application of P2P for scientific purposes: User authentication, Data integrity validation, Reliable searching SciPerNet also provides a complementary solution to virtual observatories by enabling distributed collaboration and sharing of downloaded and/or processed data among scientists. This will, in turn, increase scientific returns from NASA missions. As such, SciPerNet can serve a two-fold purpose for NASA: a cost-savings software as well as a productivity tool for scientists working with data from NASA missions.

  3. Peer assisted learning: teaching dental skills and enhancing graduate attributes.

    Science.gov (United States)

    Cameron, D A; Binnie, V I; Sherriff, A; Bissell, V

    2015-09-25

    This study describes a pilot project in which peer assisted learning (PAL) is used to teach dental clinical skills. A cluster randomised controlled trial compared opinions of Bachelor of Dental Surgery (BDS) students from peer-led groups versus staff-led groups in a clinical (impression taking) and a pre-clinical (handpiece skills) task. BDS5 (peer tutors) in their final year delivered teaching to BDS1 (tutees) for each task. Quantitative data from tutees and the peer tutors was gathered from questionnaires, along with open written comments. PAL was well received by both tutees and peer tutors. BDS1 tutees rated BDS5 peer tutors highly for delivery of information, and level of feedback. The tutees considered peer tutors more approachable and less intimidating than staff. Peer tutors reported their own knowledge had increased as a result of teaching. In a summative OSCE (objective structured clinical examination) four months following the teaching, no statistical significant difference between the performance of peer-led and staff-led groups was found at stations related to the subject matter in question. It is argued that PAL, as well as being a useful method of delivering subject-specific teaching, is able to contribute to the development of graduate attributes.

  4. Fast crawling methods of exploring content distributed over large graphs

    KAUST Repository

    Wang, Pinghui; Zhao, Junzhou; Lui, John C. S.; Towsley, Don; Guan, Xiaohong

    2018-01-01

    Despite recent effort to estimate topology characteristics of large graphs (e.g., online social networks and peer-to-peer networks), little attention has been given to develop a formal crawling methodology to characterize the vast amount of content

  5. Expertise-based peer selection in Peer-to-Peer networks

    NARCIS (Netherlands)

    Haase, Peter; Siebes, Ronny; Harmelen, van Frank

    2007-01-01

    Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining the destination peer in the first place is not always trivial. We propose a model in which peers advertise their expertise in

  6. Expertise-based peer selection in Peer-to-Peer networks

    NARCIS (Netherlands)

    Haase, Peter; Siebes, Ronny; Harmelen, van Frank

    2007-01-01

    Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining the destination peer in the first place is not always trivial. We propose a a message to a given peer. However, determining the

  7. Sealed source peer review plan

    International Nuclear Information System (INIS)

    Feldman, Alexander; Leonard, Lee; Burns, Ron

    2009-01-01

    Sealed sources are known quantities of radioactive materials that have been encapsulated in quantities that produce known radiation fields. Sealed sources have multiple uses ranging from instrument calibration sources to sources that produce radiation fields for experimental applications. The Off-Site Source Recovery (OSR) Project at Los Alamos National Laboratory (LANL), created in 1999, under the direction of the Waste Management Division of the U.S. Department of Energy (DOE) Albuquerque has been assigned the responsibility to recover and manage excess and unwanted radioactive sealed sources from the public and private sector. LANL intends to ship drums containing qualified sealed sources to the Waste Isolation Pilot Plant (WIPP) for disposal. Prior to shipping, these drums must be characterized with respect to radiological content and other parameters. The U. S. Environmental Protection Agency (EPA) requires that ten radionulcides be quantified and reported for every container of waste to be disposed in the WIPP. The methods traditionally approved by the EPA include non-destructive assay (NDA) in accordance with Appendix A of the Contact-Handled Transuranic Waste Acceptance Criteria for the Waste Isolation Pilot Plant (DOE, 2002) (CH WAC). However, because of the nature and pedigree of historical records for sealed sources and the technical infeasibility of performing NDA on these sources, LANL proposes to characterize the content of these waste drums using qualified existing radiological data in lieu of direct measurement. This plan describes the process and documentation requirements for the use of the peer review process to qualify existing data for sealed radiological sources in lieu of perfonning radioassay. The peer review process will be performed in accordance with criteria provided in 40 CFR (section) 194.22 which specifies the use of the NUREG 1297 guidelines. The plan defines the management approach, resources, schedule, and technical requirements

  8. Exploring nursing students’ experience of peer learning in clinical practice

    Science.gov (United States)

    Ravanipour, Maryam; Bahreini, Masoud; Ravanipour, Masoumeh

    2015-01-01

    Background: Peer learning is an educational process wherein someone of the same age or level of experience level interacts with other students interested in the same topic. There is limited evidence specifically focusing on the practical use of peer learning in Iran. The aim of this study was to explore nursing students’ experiences of peer learning in clinical practice. Materials and Methods: A qualitative content analysis was conducted. Focus groups were used to find the students’ experiences about peerlearning. Twenty-eight baccalaureate nursing students at Bushehr University of Medical Sciences were selected purposively, and were arranged in four groups of seven students each. The focus group interviews were conducted using a semi-structured interview schedule. All interviews were tape-recorded, transcribed verbatim, and analyzed using conventional content analysis method. Results: The analysis identified four themes: Paradoxical dualism, peer exploitation, first learning efficacy, and socialization practice. Gained advantages and perceived disadvantages created paradoxical dualism, and peer exploitation resulted from peer selection and peer training. Conclusion: Nursing students reported general satisfaction concerning peer learning due to much more in-depth learning with little stress than conventional learning methods. Peer learning is a useful method for nursing students for practicing educational leadership and learning the clinical skills before they get a job. PMID:26097860

  9. How Does Student Peer Review Influence Perceptions, Engagement and Academic Outcomes? A Case Study

    Science.gov (United States)

    Mulder, Raoul; Baik, Chi; Naylor, Ryan; Pearce, Jon

    2014-01-01

    Involving students in peer review has many pedagogical benefits, but few studies have explicitly investigated relationships between the content of peer reviews, student perceptions and assessment outcomes. We conducted a case study of peer review within a third-year undergraduate subject at a research-intensive Australian university, in which we…

  10. Mapping Psychology Students' Perspective on Group Peer-Tutoring in Statistics

    Science.gov (United States)

    Cantinotti, Michael; Désormeaux-Moreau, Marjorie; Balbinotti, Marcos

    2017-01-01

    Students in psychology generally have difficulties to successfully accomplish mandatory courses in statistics. Group peer-tutoring is a pedagogical strategy to support them with a peer that has already successfully mastered the content of such a course. In order to specifically tailor group peer-tutoring to the needs of students and to sustain…

  11. Brain activation upon ideal-body media exposure followed by peer feedback in late adolescents

    NARCIS (Netherlands)

    Veldhuis, J.; van der Meulen, Mara; Braams, Barbara; Peters, Sabine; Konijn, E.A.; Crone, Eveline A.

    2016-01-01

    Media content matters in social contexts, especially for adolescents who socialize largely with their peers in media(ted) environments. This is well-exemplified by body image development being influenced by media's thin body-ideal and peer influences. This study investigated peer feedback and media

  12. A peer-to-peer traffic safety campaign program.

    Science.gov (United States)

    2014-06-01

    The purpose of this project was to implement a peer-to-peer drivers safety program designed for high school students. : This project builds upon an effective peer-to-peer outreach effort in Texas entitled Teens in the Driver Seat (TDS), the : nati...

  13. Peer-to-peer computing (Introduction to Topic 7)

    NARCIS (Netherlands)

    Montresor, A.; Epema, D.H.J.; Jelasity, M.; Jorba, J.; Luque, E.; Margalef, T.; Benítez, D.

    2008-01-01

    After a decade of intensive investigation, peer-to-peer computing has established itself as an accepted research field in the general area of distributed systems. peer-to-peer computing can be seen as the democratization of computing-overthrowing the old regime of hierarchies as in client-server

  14. PLATON: Peer-to-Peer load adjusting tree overlay networks

    NARCIS (Netherlands)

    Lymberopoulos, L.; Pittaras, C.; Grammatikou, M.; Papavassiliou, S.; Maglaris, V.

    2011-01-01

    Peer-to-Peer systems supporting multi attribute and range queries use a number of techniques to partition the multi dimensional data space among participating peers. Load-balancing of data accross peer partitions is necessary in order to avoid the presence of network hotspots which may cause

  15. Jupiter: Peer-to-Peer Networking Platform over Heterogeneous Networks

    Directory of Open Access Journals (Sweden)

    Norihiro Ishikawa

    2006-10-01

    Full Text Available Peer-to-peer has entered the public limelight over the last few years. Several research projects are underway on peer-to-peer technologies, but no definitive conclusion is currently available. Compared with traditional Internet technologies, peer-to-peer has the potential to realize highly scalable, extensible, and efficient distributed applications. This is because its basic functions realize resource discovery, resource sharing, and load balancing in a highly distributed manner. An easy prediction is the emergence of an environment in which many sensors, people, and many different kinds of objects exist, move, and communicate with one another. Peer-to-peer is one of the most important and suitable technologies for such networking since it supports discovery mechanisms, simple one-to-one communication between devices, free and extensible distribution of resources, and distributed search to handle the enormous number of resources. The purpose of this study is to explore a universal peer-to-peer network architecture that will allow various devices to communicate with one another across various networks. We have been designing architecture and protocols for realizing peer-to-peer networking among various devices. We are currently designing APIs that are available for various peer-to-peer applications and are implementing a prototype called "Jupiter" as a peer-to-peer networking platform over heterogeneous networks.

  16. Promoting Residential Renewable Energy via Peer-to-Peer Learning

    Science.gov (United States)

    Heiskanen, Eva; Nissilä, Heli; Tainio, Pasi

    2017-01-01

    Peer-to-peer learning is gaining increasing attention in nonformal community-based environmental education. This article evaluates a novel modification of a concept for peer-to-peer learning about residential energy solutions (Open Homes). We organized collective "Energy Walks" visiting several homes with novel energy solutions and…

  17. Research peer exchange, 2014.

    Science.gov (United States)

    2017-08-01

    The WSDOT Research Peer Exchange was held in Olympia, Washington on May 13 and 14, 2014 and addressed Research Program and Project Management as described in the following paragraphs: Program Management There are numerous funding programs, standing c...

  18. EERE Peer Review Guide

    Energy Technology Data Exchange (ETDEWEB)

    None

    2009-01-18

    The primary purpose of this guide is to provide managers and staff guidance in establishing formal in-progress peer review that provides intellectually fair expert evaluation of EERE RD3 and supporting business administration programs, both retrospective and prospective.

  19. Surveillance of peer to peer payment systems and peer to peer lending platforms

    OpenAIRE

    Faia, Ester

    2014-01-01

    Financial innovation is, as usual, faster than regulation. New forms of speculation and intermediation are rapidly emerging. Largely as a result of the evaporation of trust in financial intermediation, an exponentially increasing role is being played by the so-called peer to peer intermediation. The most prominent example at the moment is Bitcoin. If one expects that shocks in these markets could destabilize also traditional financial markets, then it will be necessary to extend regulatory me...

  20. Peer mentoring works!

    OpenAIRE

    Andrews, Jane; Clark, Robin

    2011-01-01

    This report draws on the findings of a three year study into peer mentoring conducted at 6 Higher Education Institutions (HEIs), 5 of which were in the UK, 1 of which was in Norway. Following a multiple case-study design, quantitative and qualitative research was conducted in collaboration with the project partners. The research findings provide empirical evidence that peer mentoring works! In particular the report provides: - An Executive Summary outlining the main project findings - A synop...

  1. Building capacity in social service agencies to employ peer providers.

    Science.gov (United States)

    Gates, Lauren B; Mandiberg, James M; Akabas, Sheila H

    2010-01-01

    While there is evidence that peer providers are valuable to service delivery teams, the agencies where they work face difficulties in fulfilling the potential of including peers on staff effectively. The purpose of this article is to report findings of a pilot test of a workplace strategy that promoted inclusion of peer providers at social service agencies by building organizational capacity to support people with mental health conditions in peer provider roles. The strategy included training, goal setting and ongoing consultation. Seventy-one peer, non-peer and supervisory staff participated from 6 agencies over a one year period. Goal attainment scaling and data from in-depth interviews about perceptions of differences in the ways in which staff are supported, administered prior to and after the consultation period, were used to assess strategy impact. Most frequently staff set goals to respond to role conflict or a lack of support. Staff that met or exceeded their goals utilized the formal structure of consultation to improve communication among themselves, had leadership that sanctioned changes and felt that their participation was of value to the organization and contributed to their individual development. Strategy participation promoted inclusion by initiating changes to policies and practices that devalued the peer provider role, increased skill sets, and formalized lines of communication for sharing information and understanding related to peer providers. Findings demonstrate that a strategy of training, goal setting and consultation can positively affect perceptions of inclusion, and promote implementation of practices associated with inclusive workplaces.

  2. The Potential of Peer Review

    Science.gov (United States)

    Johnson, Susan Moore; Fiarman, Sarah E.

    2012-01-01

    Peer review of teachers is controversial for several reasons. Some say peer reviewers encroach on the rightful domain of the principal as instructional leader. Others argue that, because peer evaluators are fellow teachers, they may be biased or unwilling to make hard decisions. Many teachers find the prospect of peer evaluation unsettling because…

  3. Citation ranking versus peer evaluation of senior faculty research performance

    DEFF Research Database (Denmark)

    Meho, Lokman I.; Sonnenwald, Diane H.

    2000-01-01

    The purpose of this study is to analyze the relationship between citation ranking and peer evaluation in assessing senior faculty research performance. Other studies typically derive their peer evaluation data directly from referees, often in the form of ranking. This study uses two additional...... indicator of research performance of senior faculty members? Citation data, book reviews, and peer ranking were compiled and examined for faculty members specializing in Kurdish studies. Analysis shows that normalized citation ranking and citation content analysis data yield identical ranking results....... Analysis also shows that normalized citation ranking and citation content analysis, book reviews, and peer ranking perform similarly (i.e., are highly correlated) for high-ranked and low-ranked senior scholars. Additional evaluation methods and measures that take into account the context and content...

  4. Bound by Tradition? Peer Review and New Scholarship: An Institutional Case Study

    Science.gov (United States)

    White, Barbara Jo; Cruz, Laura; Ellern, Jill; Ford, George; Moss, Hollye

    2012-01-01

    Peer review is by no means a routine process for traditional, or basic, research. Even so, peer review is even less routinized for other forms of scholarship. In 1990, Ernest Boyer called for a reconsideration of scholarship and extended the definition to be inclusive of non-traditional modes of scholarly production and delivery. However, peer…

  5. Defining the content and delivery of an intervention to Change AdhereNce to treatment in BonchiEctasis (CAN-BE): a qualitative approach incorporating the Theoretical Domains Framework, behavioural change techniques and stakeholder expert panels.

    Science.gov (United States)

    McCullough, Amanda R; Ryan, Cristín; O'Neill, Brenda; Bradley, Judy M; Elborn, J Stuart; Hughes, Carmel M

    2015-08-22

    Low patient adherence to treatment is associated with poorer health outcomes in bronchiectasis. We sought to use the Theoretical Domains Framework (TDF) (a framework derived from 33 psychological theories) and behavioural change techniques (BCTs) to define the content of an intervention to change patients' adherence in bronchiectasis (Stage 1 and 2) and stakeholder expert panels to define its delivery (Stage 3). We conducted semi-structured interviews with patients with bronchiectasis about barriers and motivators to adherence to treatment and focus groups or interviews with bronchiectasis healthcare professionals (HCPs) about their ability to change patients' adherence to treatment. We coded these data to the 12 domain TDF to identify relevant domains for patients and HCPs (Stage 1). Three researchers independently mapped relevant domains for patients and HCPs to a list of 35 BCTs to identify two lists (patient and HCP) of potential BCTs for inclusion (Stage 2). We presented these lists to three expert panels (two with patients and one with HCPs/academics from across the UK). We asked panels who the intervention should target, who should deliver it, at what intensity, in what format and setting, and using which outcome measures (Stage 3). Eight TDF domains were perceived to influence patients' and HCPs' behaviours: Knowledge, Skills, Beliefs about capability, Beliefs about consequences, Motivation, Social influences, Behavioural regulation and Nature of behaviours (Stage 1). Twelve BCTs common to patients and HCPs were included in the intervention: Monitoring, Self-monitoring, Feedback, Action planning, Problem solving, Persuasive communication, Goal/target specified:behaviour/outcome, Information regarding behaviour/outcome, Role play, Social support and Cognitive restructuring (Stage 2). Participants thought that an individualised combination of these BCTs should be delivered to all patients, by a member of staff, over several one-to-one and/or group visits in

  6. After Delivery

    Science.gov (United States)

    ... Rights Employment Discrimination Health Care Professionals Law Enforcement Driver's License For Lawyers Food & Fitness Home Food MyFoodAdvisor ... A Listen En Español After Delivery After your baby arrives, your body begins to recover from the ...

  7. Addressing user expectations in mobile content delivery

    NARCIS (Netherlands)

    Agboma, F.; Liotta, A.

    2007-01-01

    Multimedia services like television programs and live streaming of mobile videos can be delivered to mobile terminals via different access technologies. The question is – how do users perceive such services on mobile terminals? The objective of this study is to find the correlation between video

  8. When learners become teachers: a review of peer teaching in medical student education.

    Science.gov (United States)

    Benè, Kristen L; Bergus, George

    2014-01-01

    Peer teaching engages students as teachers and is widely used in K-12 education, many universities, and increasingly in medical schools. It draws on the social and cognitive congruence between learner and teacher and can be attractive to medical schools faced with a growing number of learners but a static faculty size. Peer teachers can give lectures on assigned topics, lead problem-based learning sessions, and provide one on one support to classmates in the form of tutoring. We undertook a narrative review of research on peer teachers in medical school, specifically investigating how medical students are impacted by being peer teachers and how having a peer teacher impacts learners. Studies have shown that peer teaching has a primarily positive impact on both the peer teacher and the learners. In the setting of problem-based learning courses or clinical skills instruction, medical students' performance on tests of knowledge or skills is similar whether they have faculty instructors or peer teachers. There is also strong evidence that being a peer teacher enhances the learning of the peer teacher relative to the content being taught. It is common for peer teachers to lack confidence in their abilities to successfully teach, and they appreciate receiving training related to their teaching role. We find evidence from several different educational settings that peer teaching benefits both the peer teachers and the learners. This suggests that peer teaching is a valuable methodology for medical schools to engage learners as teachers.

  9. Horizontal Curve Virtual Peer Exchange : an RSPCB Peer Exchange

    Science.gov (United States)

    2014-06-01

    This report summarizes the Horizontal Curve Virtual Peer Exchange sponsored by the Federal Highway Administration (FHWA) Office of Safetys Roadway Safety Professional Capacity Building Program on June 17, 2014. This virtual peer exchange was the f...

  10. Perceived peer influence and peer selection on adolescent smoking.

    Science.gov (United States)

    Hoffman, Beth R; Monge, Peter R; Chou, Chih-Ping; Valente, Thomas W

    2007-08-01

    Despite advances in tobacco control, adolescent smoking remains a problem. The smoking status of friends is one of the highest correlates with adolescent smoking. This homophily (commonality of friends based on a given attribute) may be due to either peer pressure, where adolescents adopt the smoking behaviors of their friends, or peer selection, where adolescents choose friends based on their smoking status. This study used structural equation modeling to test a model of peer influence and peer selection on ever smoking by adolescents. The primary analysis of the model did not reach significance, but post hoc analyses did result in a model with good fit. Results indicated that both peer influence and peer selection were occurring, and that peer influence was more salient in the population than was peer selection. Implications of these results for tobacco prevention programs are discussed.

  11. Distributed Data Mining in Peer-to-Peer Networks

    Data.gov (United States)

    National Aeronautics and Space Administration — Peer-to-peer (P2P) networks are gaining popularity in many applications such as file sharing, e-commerce, and social networking, many of which deal with rich,...

  12. Characteristics of file sharing and peer to peer networking | Opara ...

    African Journals Online (AJOL)

    Characteristics of file sharing and peer to peer networking. ... distributing or providing access to digitally stored information, such as computer programs, ... including in multicast systems, anonymous communications systems, and web caches.

  13. Efficient Skyline Computation in Structured Peer-to-Peer Systems

    DEFF Research Database (Denmark)

    Cui, Bin; Chen, Lijiang; Xu, Linhao

    2009-01-01

    An increasing number of large-scale applications exploit peer-to-peer network architecture to provide highly scalable and flexible services. Among these applications, data management in peer-to-peer systems is one of the interesting domains. In this paper, we investigate the multidimensional...... skyline computation problem on a structured peer-to-peer network. In order to achieve low communication cost and quick response time, we utilize the iMinMax(\\theta ) method to transform high-dimensional data to one-dimensional value and distribute the data in a structured peer-to-peer network called BATON....... Thereafter, we propose a progressive algorithm with adaptive filter technique for efficient skyline computation in this environment. We further discuss some optimization techniques for the algorithm, and summarize the key principles of our algorithm into a query routing protocol with detailed analysis...

  14. Beyond Bullying: Aggravating Elements of Peer Victimization Episodes

    Science.gov (United States)

    Turner, Heather A.; Finkelhor, David; Shattuck, Anne; Hamby, Sherry; Mitchell, Kimberly

    2015-01-01

    This study sought to identify features of peer victimization that aggravate negative outcomes in children. The features that were assessed include "power imbalance," a commonly used criterion in defining bullying, and 5 other characteristics: injury, weapon involvement, Internet involvement, sexual content, and bias content. Three…

  15. Analysis of peer-to-peer locking of magnetrons

    International Nuclear Information System (INIS)

    Pengvanich, P.; Lau, Y. Y.; Cruz, E.; Gilgenbach, R. M.; Hoff, B.; Luginsland, J. W.

    2008-01-01

    The condition for mutual, or peer-to-peer, locking of two magnetrons is derived. This condition reduces to Adler's classical phase-locking condition in the limit where one magnetron becomes the ''master'' and the other becomes the ''slave.'' The formulation is extended to the peer-to-peer locking of N magnetrons, under the assumption that the electromagnetic coupling among the N magnetrons is modeled by an N-port network.

  16. Peer Mentoring Roles

    Science.gov (United States)

    Ashman, Marinda; Colvin, Janet

    2011-01-01

    Because students starting college are not always prepared to succeed, colleges and universities frequently offer courses designed to help students who need remediation in mathematics, reading, and writing. At Utah Valley University (UVU), peer mentors are integrated into the University Student Success course to help first-year students learn the…

  17. Peer review statement

    Science.gov (United States)

    2018-03-01

    All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.

  18. Dealing with Peer Pressure

    Science.gov (United States)

    ... Peer Pressure Print en español Cómo lidiar con la presión de grupo "Come on! ALL of us are cutting ... and they learn from you. It's only human nature to listen to and learn from ... another student in your science class taught you an easy way to remember ...

  19. mitigating mitigating free riding in peer-to-peer networks

    African Journals Online (AJOL)

    eobe

    The performance of peer-to-peer systems is based on the quality and quantity of resource contributions from peer systems ... riding [3]. There are several measurement studies ...... J. S. Hua, D. C. Huang, S M Yen, and C. W. Chena, “A dynamic.

  20. Stability analysis of peer-to-peer networks against churn

    Indian Academy of Sciences (India)

    Users of the peer-to-peer system join and leave the network randomly, which makes the overlay network dynamic and unstable in nature. In this paper, we propose an analytical framework to assess the robustness of p2p networks in the face of user churn. We model the peer churn through degree-independent as well as ...

  1. Privacy and Cooperation in Peer-to-Peer Systems

    NARCIS (Netherlands)

    Zeilemaker, N.S.M.

    2015-01-01

    P2P networks employ the resources available at peers to reduce the load at, or eliminate the need for a server. In order to achieve these goals, protocols are implemented which aim to allow peers to collaborate efficiently. However, these same protocols can make peers an easy target, as their

  2. Mathematical Framework For Analyzing Incentives In Peer-To-Peer

    African Journals Online (AJOL)

    The existence and performance of peer-to-peer systems depend on the contribution of resources .... analysis in P2P based on game strategy. The entire P2P ... a robust P2P systems, every peer must be made to contribute by designing efficient free ..... Currently, all P2P can be classified based on structure as structured and ...

  3. Two Dimensional Array Based Overlay Network for Balancing Load of Peer-to-Peer Live Video Streaming

    Science.gov (United States)

    Faruq Ibn Ibrahimy, Abdullah; Rafiqul, Islam Md; Anwar, Farhat; Ibn Ibrahimy, Muhammad

    2013-12-01

    The live video data is streaming usually in a tree-based overlay network or in a mesh-based overlay network. In case of departure of a peer with additional upload bandwidth, the overlay network becomes very vulnerable to churn. In this paper, a two dimensional array-based overlay network is proposed for streaming the live video stream data. As there is always a peer or a live video streaming server to upload the live video stream data, so the overlay network is very stable and very robust to churn. Peers are placed according to their upload and download bandwidth, which enhances the balance of load and performance. The overlay network utilizes the additional upload bandwidth of peers to minimize chunk delivery delay and to maximize balance of load. The procedure, which is used for distributing the additional upload bandwidth of the peers, distributes the additional upload bandwidth to the heterogeneous strength peers in a fair treat distribution approach and to the homogeneous strength peers in a uniform distribution approach. The proposed overlay network has been simulated by Qualnet from Scalable Network Technologies and results are presented in this paper.

  4. Two Dimensional Array Based Overlay Network for Balancing Load of Peer-to-Peer Live Video Streaming

    International Nuclear Information System (INIS)

    Ibrahimy, Abdullah Faruq Ibn; Rafiqul, Islam Md; Anwar, Farhat; Ibrahimy, Muhammad Ibn

    2013-01-01

    The live video data is streaming usually in a tree-based overlay network or in a mesh-based overlay network. In case of departure of a peer with additional upload bandwidth, the overlay network becomes very vulnerable to churn. In this paper, a two dimensional array-based overlay network is proposed for streaming the live video stream data. As there is always a peer or a live video streaming server to upload the live video stream data, so the overlay network is very stable and very robust to churn. Peers are placed according to their upload and download bandwidth, which enhances the balance of load and performance. The overlay network utilizes the additional upload bandwidth of peers to minimize chunk delivery delay and to maximize balance of load. The procedure, which is used for distributing the additional upload bandwidth of the peers, distributes the additional upload bandwidth to the heterogeneous strength peers in a fair treat distribution approach and to the homogeneous strength peers in a uniform distribution approach. The proposed overlay network has been simulated by Qualnet from Scalable Network Technologies and results are presented in this paper

  5. Peer-led small groups: Are we on the right track?

    Science.gov (United States)

    Moore, Fraser

    2017-10-01

    Peer tutor-led small group sessions are a valuable learning strategy but students may lack confidence in the absence of a content expert. This study examined whether faculty reinforcement of peer tutor-led small group content was beneficial. Two peer tutor-led small group sessions were compared with one faculty-led small group session using questionnaires sent to student participants and interviews with the peer tutors. One peer tutor-led session was followed by a lecture with revision of the small group content; after the second, students submitted a group report which was corrected and returned to them with comments. Student participants and peer tutors identified increased discussion and opportunity for personal reflection as major benefits of the peer tutor-led small group sessions, but students did express uncertainty about gaps in their learning following these sessions. Both methods of subsequent faculty reinforcement were perceived as valuable by student participants and peer tutors. Knowing in advance that the group report would be corrected reduced discussion in some groups, potentially negating one of the major benefits of the peer tutor-led sessions. Faculty reinforcement of peer-tutor led small group content benefits students but close attention should be paid to the method of reinforcement.

  6. Peer-assisted learning--beyond teaching: How can medical students contribute to the undergraduate curriculum?

    Science.gov (United States)

    Furmedge, Daniel S; Iwata, Kazuya; Gill, Deborah

    2014-09-01

    Peer-assisted learning (PAL) has become increasingly popular over recent years with many medical schools now formally incorporating peer-teaching programs into the curriculum. PAL has a sound evidence base with benefit to both peer-teacher and peer-learner. Aside from in teaching delivery, empowering students to develop education in its broadest sense has been much less extensively documented. Five case studies with supportive evaluation evidence illustrate the success of a broad range of peer-led projects in the undergraduate medical curriculum, particularly where these have been embedded into formal teaching practices. These case studies identify five domains of teaching and support of learning where PAL works well: teaching and learning, resource development, peer-assessment, education research and evaluation and mentoring and support. Each case offers ways of engaging students in each domain. Medical students can contribute significantly to the design and delivery of the undergraduate medical program above and beyond the simple delivery of peer-assisted "teaching". In particular, they are in a prime position to develop resources and conduct research and evaluation within the program. Their participation in all stages enables them to feel involved in course development and education of their peers and ultimately leads to an increase in student satisfaction.

  7. Integrated care: wellness-oriented peer approaches: a key ingredient for integrated care.

    Science.gov (United States)

    Swarbrick, Margaret A

    2013-08-01

    People with lived experience of mental illness have become leaders of an influential movement to help the mental health system embrace the notion of whole health and wellness in the areas of advocacy, policy, and care delivery. Wellness-oriented peer approaches delivered by peer-support whole-health specialists and wellness coaches can play an important role in integrated care models. This column examines the wellness definitions and peer models and some specific benefits and tensions between the peer-oriented wellness approach and the medical model. These models can work in unison to improve health and wellness among people with mental and substance use disorders.

  8. The contribution of online peer-to-peer communication among patients with adrenal disease to patient-centered care.

    Science.gov (United States)

    Kauw, Dirkjan; Repping-Wuts, Han; Noordzij, Alida; Stikkelbroeck, Nike; Hermus, Ad; Faber, Marjan

    2015-02-25

    Addison's disease and Cushing's syndrome are rare. The Dutch Adrenal Society offers an online forum for Dutch adrenal patients to meet and communicate. However, little is known about the added value such a forum has for the delivery of patient-centered care. Our aim was to analyze the purposes of online patient-to-patient forum conversations, within the context of patient-centered care. For this study a consecutive sample of 300 questions ("threads") from the past 3.5 years was selected from the forum. The content of these patient-driven questions was analyzed based on the dimensions of patient-centeredness of the Picker Institute. This analysis was performed using ATLAS.ti. From the 390 questions analyzed, 80.8% (N=315) were intended to gain more information about the disease, the treatment, and to verify if other patients had similar complaints. To a much lesser extent (38/390, 9.7%), questions expressed a call for emotional support. Patients answered primarily by giving practical tips to fellow patients and to share their own experiences. On an online patient forum for Cushing's syndrome and Addison's disease, patients appear to primarily gain knowledge and, to a lesser extent, emotional support from their peers. This experience-based knowledge has become a very important information source. As such, patients can make a substantial contribution to the creation of patient-centered care if this knowledge is integrated into the care provided by health care professionals.

  9. Peer Country Comments Paper - Denmark

    DEFF Research Database (Denmark)

    Bredgaard, Thomas

    Bidrag til EU-kommissionens peer-review on "Strategies for Employment policy Reform. Implementation Challenges in Decentralised Countries"......Bidrag til EU-kommissionens peer-review on "Strategies for Employment policy Reform. Implementation Challenges in Decentralised Countries"...

  10. Peer Gynti tagasitulek / Hilve Rebane

    Index Scriptorium Estoniae

    Rebane, Hilve, 1938-2012

    1999-01-01

    Arvustus: Ibsen, Henrik. Peer Gynt / tõlkinud Marie Under. 2. tr. Tallinn : Eesti Raamat, 1998. Ka "Peer Gynti" mõjutusi eesti kirjanduses: August Gailiti, Marie Underi, A. H. Tammsaare ja eriti Karl Ristikivi loomingus

  11. Horizontal Curves Virtual Peer Exchange

    Science.gov (United States)

    2012-05-01

    This report provides a summary of a peer-to-peer videoconference sponsored by : the Federal Highway Administration (FHWA) Office of Safety. The : videoconference, which piloted a virtual event format, is part of a series of : roadway departure-focuse...

  12. Counteracting the Influence of Peer Smoking on YouTube

    OpenAIRE

    Romer, Daniel; Jamieson, Patrick E.; Jamieson, Kathleen Hall; Jones, Christopher; Sherr, Susan

    2017-01-01

    YouTube, a popular online site for user-generated content, is emerging as a powerful source of peer modeling of smoking. Previous research suggests that in counteracting such influence, health messages may inadvertently increase the perceived prevalence of drug use (a descriptive norm) without reducing its acceptability (injunctive norm). This research tested the ability of health messages to reduce the social acceptability of peer smoking on YouTube despite enhancing its perceived prevalence...

  13. Notes on Adolescent's Peer Relationships

    OpenAIRE

    栗本, かおり; Kaori, KURIMOTO; 岩手県立大学社会福祉学部; FACULTY OF SOCIAL WELFARE IWATE PREFECTURAL UNIVERSITY

    2003-01-01

    The purpose of this paper is to review the influence of adolescents' peer relationships on their psychosocial development. Adolescents influence on each other, though some psychosocial merit and demerit emerge in peer influence on adolescents. The merit improves adolescents' identity, self-esteem, satisfaction of life and happiness, provides support under the crisis as well. A case of the demerit can be seen as the negative peer pressure. Adolescents are willing to conform to the norm of peer...

  14. Peer-to-Peer Mentoring for African American Women With Lupus: A Feasibility Pilot.

    Science.gov (United States)

    Williams, Edith M; Hyer, J Madison; Viswanathan, Ramakrishnan; Faith, Trevor D; Voronca, Delia; Gebregzaibher, Mulugeta; Oates, Jim C; Egede, Leonard

    2018-06-01

    To examine the feasibility and potential benefits of peer mentoring to improve the disease self-management and quality of life of individuals with systemic lupus erythematosus (SLE). Peer mentors were trained and paired with up to 3 mentees to receive self-management education and support by telephone over 12 weeks. This study took place at an academic teaching hospital in Charleston, South Carolina. Seven quads consisting of 1 peer mentor and 3 mentees were matched, based on factors such as age, area of residence, and marital and work status. Mentee outcomes of self-management, health-related quality of life, and disease activity were measured using validated tools at baseline, mid-intervention, and post-intervention. Descriptive statistics and effect sizes were calculated to determine clinically important (>0.3) changes from baseline. Mentees showed trends toward lower disease activity (P = 0.004) and improved health-related quality of life, in the form of decreased anxiety (P = 0.018) and decreased depression (P = 0.057). Other improvements in health-related quality of life were observed with effect sizes >0.3, but did not reach statistical significance. In addition, both mentees and mentors gave very high scores for perceived treatment credibility and service delivery. The intervention was well received. Training, the peer-mentoring program, and outcome measures were demonstrated to be feasible with modifications. This result provides preliminary support for the efficacy, acceptability, and perceived credibility of a peer-mentoring approach to improve disease self-management and health-related quality of life in African American women with SLE. Peer mentoring may augment current rheumatologic care. © 2017, American College of Rheumatology.

  15. Transformational mentoring: Leadership behaviors of spinal cord injury peer mentors.

    Science.gov (United States)

    Shaw, Robert B; McBride, Christopher B; Casemore, Sheila; Martin Ginis, Kathleen A

    2018-02-01

    The purpose of this study was to investigate the leadership behaviors of spinal cord injury (SCI) peer mentors and examine whether behaviors of peer mentors align with the tenets of transformational leadership theory. A total of 12 SCI peer mentors aged 28-75 (M = 49.4) who had between 3 and 56 years (M = 13.9) of mentoring experience were recruited for the study. Utilizing a qualitative methodology (informed by a social constructionist approach), each mentor engaged in a semistructured interview about their experiences as a peer mentor. Interviews were transcribed verbatim and subjected to a directed content analysis. SCI peer mentors reported using mentorship behaviors and engaging with mentees in a manner that closely aligns with the core components of transformational leadership theory: idealized influence, inspirational motivation, individualized consideration, and intellectual stimulation. A new subcomponent of inspirational motivation described as 'active promotion of achievement' was also identified and may be unique to the context of peer mentorship. SCI peer mentors inherently use behaviors associated with transformational leadership theory when interacting with mentees. The results from this study have the potential to inform SCI peer mentor training programs about specific leadership behaviors that mentors could be taught to use and could lead to more effective mentoring practices for people with SCI. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

  16. The mediatization of peer-to-peer health care

    DEFF Research Database (Denmark)

    Dindler, Camilla; Ahlmark, Nanna

    2018-01-01

    observations and qualitative interviews from a peer-to-peer programme for men in Copenhagen. The article analyses the tensions that occurred in the media coverage of the programme as well as in the municipal facilitation and management of the peer-to-peer health care programme defined partly...... by a democratization of health expertise and by a broader culture characterized by individualized, risk aware health promotion. We will argue that tensions between media logics and logics of care and of risk created a mediatized conception of health and of the peer programme that highlighted health care...

  17. Re-Viewing Peer Review

    Science.gov (United States)

    Flynn, Elizabeth A.

    2011-01-01

    In this article, the author revisits her essay, "Students as Readers of Their Classmates' Writing," by providing a review of the literature on peer review over the past three decades and comments on patterns she sees in waves of peer review research and theorizing. She describes her subsequent experience with peer review in her own classes, and…

  18. Peer Influence and Addiction Recurrence

    OpenAIRE

    Paul Markdissi

    2009-01-01

    In this paper we highlight the role of peers in the recurrence of addictive behavior. To do so, we use a simple “forward looking” model with procrastination and peers influence. Our results show that while procrastination can explain the decision to postpone rehabilitation, peers influence is essential to explain the cyclical patterns of addiction-rehabilitation-addiction.

  19. Assessing the Academic, Social, and Language Production Outcomes of English Language Learners Engaged in Peer Tutoring: A Systematic Review

    Science.gov (United States)

    Bowman-Perrott, Lisa; deMarín, Sharon; Mahadevan, Lakshmi; Etchells, Matthew

    2016-01-01

    Peer tutoring is an instructional strategy that allows students to help one another learn content material through the repetition of key concepts. In more than 40 years of published studies, literature reviews, and meta-analyses of peer tutoring, this quantitative synthesis of the literature is the first to examine the impact of peer tutoring on…

  20. Trustworthy content push

    OpenAIRE

    Kuntze, Nicolai; Schmidt, Andreas U.

    2006-01-01

    Delivery of content to mobile devices gains increasing importance in industrial environments to support employees in the field. An important application are e-mail push services like the fashionable Blackberry. These systems are facing security challenges regarding data transport to, and storage of the data on the end user equipment. The emerging Trusted Computing technology offers new answers to these open questions.

  1. The Strategic Combination of Open-Access Peer-Review, Mainstream Media and Social Media to Improve Public Climate Literacy (Invited)

    Science.gov (United States)

    Cook, J.; Nuccitelli, D. A.; Jacobs, P.

    2013-12-01

    The Skeptical Science website began in 2007, with the goal of refuting climate misinformation with peer-reviewed science. It achieved this by embracing a diversity of message formats and delivery methods. Myth rebuttals are available at beginner, intermediate and advanced levels, spanning from long, technical treatments to tweetable one-liners. Content has been translated into 20 different languages and made available via the web, an iPhone app and books while adopted by third parties in textbooks, university and MOOC curricula, books, Senate testimonies and TV documentaries. While social media has been a fruitful medium, we experimented with a new model in 2013, employing the strategic combination of open-access peer-review, mainstream media outreach and social media marketing. This strategy was adopted with the release of a paper quantifying the level of scientific consensus in published climate papers, resulting in broad mainstream media attention as well as acknowledgement from key public figures such as Al Gore, the UK Minister for Energy Edward Davey and President Obama. Our approach was informed by psychological research into both the importance of scientific consensus and how to reduce the influence of misconceptions. While multiple methods of delivery are important, equally important is the construction of the messages themselves. I will examine the science of crafting compelling messages and how combination with diverse message delivery can lead to impactful outcomes.

  2. MELCOR Peer Review

    International Nuclear Information System (INIS)

    Boyack, B.E.; Dhir, V.K.; Gieseke, J.A.; Haste, T.J.; Kenton, M.A.; Khatib-Rahbar, M.; Leonard, M.T.; Viskanta, R.

    1992-03-01

    MELCOR is a fully integrated, engineering-level computer code that models the progression of severe accidents in light water reactor nuclear power plants. The newest version of MELCOR is Version 1.8.1, July 1991. MELCOR development has reached the point that the United States Nuclear Regulatory Commission sponsored a broad technical review by recognized experts to determine or confirm the technical adequacy of the code for the serious and complex analyses it is expected to perform. For this purpose, an eight-member MELCOR Peer Review Committee was organized. The Committee has completed its review of the MELCOR code: the review process and findings of the MELCOR Peer Review Committee are documented in this report. The Committee has determined that recommendations in five areas are appropriate: (1) MELCOR numerics, (2) models missing from MELCOR Version 1.8.1, (3) existing MELCOR models needing revision, (4) the need for expanded MELCOR assessment, and (5) documentation

  3. Toddlers Help a Peer.

    Science.gov (United States)

    Hepach, Robert; Kante, Nadine; Tomasello, Michael

    2017-09-01

    Toddlers are remarkably prosocial toward adults, yet little is known about their helping behavior toward peers. In the present study with 18- and 30-month-old toddlers (n = 192, 48 dyads per age group), one child needed help reaching an object to continue a task that was engaging for both children. The object was within reach of the second child who helped significantly more often compared to a no-need control condition. The helper also fulfilled the peer's need when the task was engaging only for the child needing help. These findings suggest that toddlers' skills and motivations of helping do not depend on having a competent and helpful recipient, such as an adult, but rather they are much more flexible and general. © 2016 The Authors. Child Development © 2016 Society for Research in Child Development, Inc.

  4. On Being a Peer

    DEFF Research Database (Denmark)

    Bertel, Lykke Brogaard; Rasmussen, Dorte Malig

    2013-01-01

    This paper investigates and discusses the persuasive principles of social actors in relation to other theories of technologies as social agents, particularly within the field of Social Robotics and Persuasive Educational and Entertainment Robotics (PEERs). Based on related research and results from...... a case study on social robots as persuasive social actors in education an extension of the persuasive principles is proposed and related design guidelines for Persuasive Technology as social actors in teaching are presented....

  5. Workplace peer educators and stress.

    Science.gov (United States)

    Dickinson, David; Kgatea, Kabelo Duncan

    2008-11-01

    Peer educators form an important component of company responses to HIV and AIDS. Based on interviews with peer educators working in and around a mining company in South Africa's North-West Province, the study examines the relationship between involvement in peer education and stress. The paper discusses how becoming a peer educator can be a response to the often personal stress brought about by the HIV epidemic. In addition, structural difficulties, skills deficiencies and other obstacles to effective communication with their peers can create stress. The stress that active peer education brings to individuals is discussed, particularly in regard to the embeddedness of peer educators within their communities. The need for confidentiality also magnifies stress in the case of individuals who disregard peer educators' advice. Peer educators face many stresses in managing and supporting their own lives, thus their (voluntary) work as peer educators should not be taken out of context. Using this approach, we discuss how the role of peer educator should be conceptualised and how they can be organised and supported in order that their stress be minimised and effective engagement maximised.

  6. 2015 Peer Review Report

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2016-03-01

    In the spring and summer of 2015, the Bioenergy Technologies Office (BETO or the Office) of the U.S. Department of Energy (DOE) implemented an external peer review of the projects in its research, development and demonstration (RD&D) portfolio. The Office manages a diverse portfolio of technologies across the spectrum of applied RD&D within the dynamic context of changing budgets and Administration priorities. The Office portfolio is organized according to the biomass-to-bioenergy supply chain—from the feedstock source to the end user (see Figure 1)—with major focus on feedstock supply and biomass conversion. The 2015 Project Peer Review took place March 23-27, 2015, outside of Washington, D.C., in Alexandria, Virginia, and evaluated most of the publicly funded projects in BETO’s portfolio. The subsequent Program Management Review took place on June 25, 2015, in Washington, D.C., and provided an Office- level assessment of strategic planning and programmatic initiatives. The peer review process enables external stakeholders to provide feedback on the responsible use of taxpayer funding and develop recommendations for the most efficient and effective ways to accelerate the development of an advanced bioenergy industry. The planning and execution of these reviews was completed over the course of 10 months, and this report includes the results of both events.

  7. Redefining continuing education delivery.

    Science.gov (United States)

    Carlton, K H

    1997-01-01

    Just as technology is transforming the delivery of education, the Internet and advanced telecommunication applications are changing the "face" of CE and the connotation of "lifelong learning." As late as the mid-1980s, a discussion of computer applications in nursing CE focused on the "timely" transition to microcomputers as tools for the enhancement of managerial tasks for increased productivity. Even as recently as 1990, there seemed to be "time" for those providers who were "slower to adopt innovation" to "catch up." Now, the CE provider who does not integrate the microcomputer and advanced telecommunications as an integral component of their delivery modalities may be outsourced rapidly by an educational or commercial competitive unit that is able to utilize the communication medium, mergers and partnerships, enterprise, and individual lifestyle and learning patterns that will epitomize the CE unit of the 21st century. As with the "re-engineering" of nursing education, the "re-engineered" delivery modalities of evolving CE entity might now best be conceptualized on a continuum from the traditional mode that time and place dependent to a mode of synchronous and asynchronous data and advanced telecommunication. Delivery methods will need to be selected according to the target populations, content, and situation. The health-care educational provider may discover, as in other industries, that a combination of distance and residential offerings will be the most successful medium for the delivery of CE to the progressively more "information and technologically savvy" lifelong learner of the 21st century. In addressing the dramatic effects of the information technology era on the refocused multimedia/interactive delivery method for student education, educators amply quoted Bob Dylan's phrase of the 1960s, "The times, they are a-changing." And so, we see that the times are also changing at an astronomical rate for the health-care educational provider as well as the

  8. Efficient File Sharing by Multicast - P2P Protocol Using Network Coding and Rank Based Peer Selection

    Science.gov (United States)

    Stoenescu, Tudor M.; Woo, Simon S.

    2009-01-01

    In this work, we consider information dissemination and sharing in a distributed peer-to-peer (P2P highly dynamic communication network. In particular, we explore a network coding technique for transmission and a rank based peer selection method for network formation. The combined approach has been shown to improve information sharing and delivery to all users when considering the challenges imposed by the space network environments.

  9. Beyond Music Sharing: An Evaluation of Peer-to-Peer Data Dissemination Techniques in Large Scientific Collaborations

    Energy Technology Data Exchange (ETDEWEB)

    Ripeanu, Matei [University of British Columbia, Vancouver; Al-Kiswany, Samer [University of British Columbia, Vancouver; Iamnitchi, Adriana [University of South Florida, Tampa; Vazhkudai, Sudharshan S [ORNL

    2009-03-01

    The avalanche of data from scientific instruments and the ensuing interest from geographically distributed users to analyze and interpret it accentuates the need for efficient data dissemination. A suitable data distribution scheme will find the delicate balance between conflicting requirements of minimizing transfer times, minimizing the impact on the network, and uniformly distributing load among participants. We identify several data distribution techniques, some successfully employed by today's peer-to-peer networks: staging, data partitioning, orthogonal bandwidth exploitation, and combinations of the above. We use simulations to explore the performance of these techniques in contexts similar to those used by today's data-centric scientific collaborations and derive several recommendations for efficient data dissemination. Our experimental results show that the peer-to-peer solutions that offer load balancing and good fault tolerance properties and have embedded participation incentives lead to unjustified costs in today's scientific data collaborations deployed on over-provisioned network cores. However, as user communities grow and these deployments scale, peer-to-peer data delivery mechanisms will likely outperform other techniques.

  10. Workplace learning through peer groups in medical school clerkships.

    Science.gov (United States)

    Chou, Calvin L; Teherani, Arianne; Masters, Dylan E; Vener, Margo; Wamsley, Maria; Poncelet, Ann

    2014-01-01

    When medical students move from the classroom into clinical practice environments, their roles and learning challenges shift dramatically from a formal curricular approach to a workplace learning model. Continuity among peers during clinical clerkships may play an important role in this different mode of learning. We explored students' perceptions about how they achieved workplace learning in the context of intentionally formed or ad hoc peer groups. We invited students in clerkship program models with continuity (CMCs) and in traditional block clerkships (BCs) to complete a survey about peer relationships with open-ended questions based on a workplace learning framework, including themes of workplace-based relationships, the nature of work practices, and selection of tasks and activities. We conducted qualitative content analysis to characterize students' experiences. In both BCs and CMCs, peer groups provided rich resources, including anticipatory guidance about clinical expectations of students, best practices in interacting with patients and supervisors, helpful advice in transitioning between rotations, and information about implicit rules of clerkships. Students also used each other as benchmarks for gauging strengths and deficits in their own knowledge and skills. Students achieve many aspects of workplace learning in clerkships through formal or informal workplace-based peer groups. In these groups, peers provide accessible, real-time, and relevant resources to help each other navigate transitions, clarify roles and tasks, manage interpersonal challenges, and decrease isolation. Medical schools can support effective workplace learning for medical students by incorporating continuity with peers in the main clinical clerkship year.

  11. Is there something like a peer to peer science?

    Directory of Open Access Journals (Sweden)

    Michel Bauwens

    2010-03-01

    Full Text Available How will peer to peer infrastructures, and the underlying intersubjective and ethical relational model that is implied by it, affect scientific practice? Are peer-to-peer forms of cooperation, based on open and free input of voluntary contributors, participatory processes of governance, and universal availability of the output, more productive than centralized alternatives? In this short introduction, Michel Bauwens reviews a number of open and free, participatory and commons oriented practices that are emerging in scientific research and practice, but which ultimately point to a more profound epistemological revolution linked to increased participatory consciousness between the scientist and his human, organic and inorganic research material.

  12. Peer victimization and peer rejection during early childhood

    Science.gov (United States)

    Godleski, Stephanie A.; Kamper, Kimberly E.; Ostrov, Jamie M.; Hart, Emily J.; Blakely-McClure, Sarah J.

    2014-01-01

    Objective The development and course of the subtypes of peer victimization is a relatively understudied topic despite the association of victimization with important developmental and clinical outcomes. Moreover, understanding potential predictors, such as peer rejection and emotion regulation, in early childhood may be especially important to elucidate possible bi-directional pathways between relational and physical victimization and rejection. The current study (N = 97) was designed to explore several gaps and limitations in the peer victimization and peer rejection literature. In particular, the prospective associations between relational and physical victimization and peer rejection over the course of 3.5 months during early childhood (i.e., 3- to 5- years-old) were investigated in an integrated model. Method The study consisted of 97 (42 girls) preschool children recruited from four early childhood schools in the northeast of the US. Using observations, research assistant report and teacher report, relational and physical aggression, relational and physical victimization, peer rejection, and emotion regulation were measured in a short-term longitudinal study. Path analyses were conducted to test the overall hypothesized model. Results Peer rejection was found to predict increases in relational victimization. In addition, emotion regulation was found to predict decreases in peer rejection and physical victimization. Conclusions Implications for research and practice are discussed, including teaching coping strategies for peer rejection and emotional distress. PMID:25133659

  13. Assisted Vaginal Delivery

    Science.gov (United States)

    ... Education & Events Advocacy For Patients About ACOG Assisted Vaginal Delivery Home For Patients Search FAQs Assisted Vaginal ... Vaginal Delivery FAQ192, February 2016 PDF Format Assisted Vaginal Delivery Labor, Delivery, and Postpartum Care What is ...

  14. Brugbar peer feedback

    DEFF Research Database (Denmark)

    Hvass, Helle; Heger, Stine

    Studerende kan være medskabere af undervisning i akademisk skrivning, når de modtager og giver feedback til hinandens ufærdige akademiske tekster. Det ser vi i et udviklingsprojekt, hvor vi afprøver kollektive vejledningsformater. Vi har dog erfaret: 1. at studerende mangler træning i at give og ...... modtage feedback 2. at den manglende træning kan stå i vejen for realiseringen af læringspotentialet ved peer feedback....

  15. Leadership Development Through Peer-Facilitated Simulation in Nursing Education.

    Science.gov (United States)

    Brown, Karen M; Rode, Jennifer L

    2018-01-01

    Baccalaureate nursing graduates must possess leadership skills, yet few opportunities exist to cultivate leadership abilities in a clinical environment. Peer-facilitated learning may increase the leadership skills of competence, self-confidence, self-reflection, and role modeling. Facilitating human patient simulation provides opportunities to develop leadership skills. With faculty supervision, senior baccalaureate students led small-group simulation experiences with sophomore and junior peers and then conducted subsequent debriefings. Quantitative and qualitative descriptive data allowed evaluation of students' satisfaction with this teaching innovation and whether the experience affected students' desire to take on leadership roles. Students expressed satisfaction with the peer-facilitated simulation experience and confidence in mastering the content while developing necessary skills for practice. Peer-facilitated simulation provides an opportunity for leadership development and learning. Study results can inform the development of nursing curricula to best develop the leadership skills of nursing students. [J Nurs Educ. 2018;57(1):53-57.]. Copyright 2018, SLACK Incorporated.

  16. An integrated 2-year clinical skills peer tutoring scheme in a UK-based medical school: perceptions of tutees and peer tutors

    Science.gov (United States)

    2018-01-01

    Background Several benefits of peer tutoring in medical school teaching have been described. However, there is a lack of research on the perceptions of peer tutoring, particularly from tutees who partake in a long-term clinical skills scheme integrated into the medical school curriculum. This study evaluates the opinions of preclinical tutees at the end of a 2-year peer-tutored clinical skills program and peer tutors themselves. Methods A cross-sectional study was conducted in a UK-based medical school that primarily utilizes peer tutoring for clinical skills teaching. A questionnaire was designed to assess the views of preclinical tutees and peer tutors. Likert scales were used to grade responses and comment boxes to collect qualitative data. Results Sixty-five questionnaires were collected (52 tutees, 13 peer tutors). Seventy-nine percent of students felt satisfied with their teaching, and 70% felt adequately prepared for clinical placements. Furthermore, 79% believed that peer tutoring is the most effective method for clinical skills teaching. When compared to faculty teaching, tutees preferred being taught by peer tutors (63%), felt more confident (73%), and were more willing to engage (77%). All peer tutors felt that teaching made them more confident in their Objective Structured Clinical Examination performance, and 91% agreed that being a tutor made them consider pursuing teaching in the future. Thematic analysis of qualitative data identified 3 themes regarding peer tutoring: a more comfortable environment (69%), a more personalized teaching approach (34%), and variation in content taught (14%). Conclusion Preclinical tutees prefer being taught clinical skills by peer tutors compared to faculty, with the peer tutors also benefitting. Studies such as this, looking at long-term schemes, further validate peer tutoring and may encourage more medical schools to adopt this method as an effective way of clinical skills teaching. PMID:29922105

  17. Premature delivery

    Directory of Open Access Journals (Sweden)

    Bernardita Donoso Bernales

    2012-09-01

    Full Text Available Preterm delivery is the single most important cause of perinatal morbidity and mortality. In Chile, preterm births have increased in the past decade, although neonatal morbidity and mortality attributable to it shows a downward trend, thanks to improvements in neonatal care of premature babies, rather than the success of obstetric preventive and therapeutic strategies. This article describes clinical entities, disease processes and conditions that constitute predisposing factors of preterm birth, as well as an outline for the prevention and clinical management of women at risk of preterm birth.

  18. CONTAIN independent peer review

    International Nuclear Information System (INIS)

    Boyack, B.E.; Corradini, M.L.; Khatib-Rahbar, M.; Loyalka, S.K.; Smith, P.N.

    1995-01-01

    The CONTAIN code was developed by Sandia National Laboratories under the sponsorship of the US Nuclear Regulatory Commission (NRC) to provide integrated analyses of containment phenomena. It is used to predict nuclear reactor containment loads, radiological source terms, and associated physical phenomena for a range of accident conditions encompassing both design-basis and severe accidents. The code's targeted applications include support for containment-related experimental programs, light water and advanced light water reactor plant analysis, and analytical support for resolution of specific technical issues such as direct containment heating. The NRC decided that a broad technical review of the code should be performed by technical experts to determine its overall technical adequacy. For this purpose, a six-member CONTAIN Peer Review Committee was organized and a peer review as conducted. While the review was in progress, the NRC issued a draft ''Revised Severe Accident Code Strategy'' that incorporated revised design objectives and targeted applications for the CONTAIN code. The committee continued its effort to develop findings relative to the original NRC statement of design objectives and targeted applications. However, the revised CONTAIN design objectives and targeted applications. However, the revised CONTAIN design objectives and targeted applications were considered by the Committee in assigning priorities to the Committee's recommendations. The Committee determined some improvements are warranted and provided recommendations in five code-related areas: (1) documentation, (2) user guidance, (3) modeling capability, (4) code assessment, and (5) technical assessment

  19. CONTAIN independent peer review

    Energy Technology Data Exchange (ETDEWEB)

    Boyack, B.E. [Los Alamos National Lab., NM (United States); Corradini, M.L. [Univ. of Wisconsin, Madison, WI (United States). Nuclear Engineering Dept.; Denning, R.S. [Battelle Memorial Inst., Columbus, OH (United States); Khatib-Rahbar, M. [Energy Research Inc., Rockville, MD (United States); Loyalka, S.K. [Univ. of Missouri, Columbia, MO (United States); Smith, P.N. [AEA Technology, Dorchester (United Kingdom). Winfrith Technology Center

    1995-01-01

    The CONTAIN code was developed by Sandia National Laboratories under the sponsorship of the US Nuclear Regulatory Commission (NRC) to provide integrated analyses of containment phenomena. It is used to predict nuclear reactor containment loads, radiological source terms, and associated physical phenomena for a range of accident conditions encompassing both design-basis and severe accidents. The code`s targeted applications include support for containment-related experimental programs, light water and advanced light water reactor plant analysis, and analytical support for resolution of specific technical issues such as direct containment heating. The NRC decided that a broad technical review of the code should be performed by technical experts to determine its overall technical adequacy. For this purpose, a six-member CONTAIN Peer Review Committee was organized and a peer review as conducted. While the review was in progress, the NRC issued a draft ``Revised Severe Accident Code Strategy`` that incorporated revised design objectives and targeted applications for the CONTAIN code. The committee continued its effort to develop findings relative to the original NRC statement of design objectives and targeted applications. However, the revised CONTAIN design objectives and targeted applications. However, the revised CONTAIN design objectives and targeted applications were considered by the Committee in assigning priorities to the Committee`s recommendations. The Committee determined some improvements are warranted and provided recommendations in five code-related areas: (1) documentation, (2) user guidance, (3) modeling capability, (4) code assessment, and (5) technical assessment.

  20. Exploring Peer Support Needs of Caregivers for Youth with Mental Illness or Addictions Concerns in Family Navigation Services.

    Science.gov (United States)

    Markoulakis, R; Turner, M; Wicik, K; Weingust, S; Dobbin, K; Levitt, A

    2017-11-16

    Roles for peer support workers are increasingly recognized as a valuable component of mental health and addictions (MHA) services. In youth MHA care, caregivers are often closely involved in finding and accessing services and may also require support for themselves, yet caregiver peer support is not readily available in existing service delivery models. In order to understand the potential role and value of a caregiver peer support worker in a Family Navigation service, a descriptive qualitative study was conducted to explore the needs and potential value of a peer worker from caregiver client perspectives. Study findings indicate that a caregiver peer support worker can provide support for engaging in the caregiving role, utilize lived experience as a skill, and complement navigation support through lived experience. The discussion highlights implications for the implementation of a caregiver peer role at a family-focused service as well as implications for peer work within the MHA system.

  1. Peer-to-Peer Networking -RE-SONANCE

    Indian Academy of Sciences (India)

    networking, operating systems and embedded systems. Peer-to-Peer (P2P) networking in recent times has been touted as .... Gnutella (General file sharing) P2P service at the same time. 2. .... The data processing does not occur in 'real time' ...

  2. Peer Education from the Perspective of Peer Educators

    Science.gov (United States)

    Karaca, Aysel; Akkus, Dilek; Sener, Dilek Konuk

    2018-01-01

    Peer educators (PEs) have a significant role in providing education on various health issues like smoking, alcohol, and other substance use. This study aimed to determine the experiences and opinions of PEs regarding a peer education program. Using the qualitative research method, data were collected from the study sample, which consisted of 23…

  3. Peer production & peer support at the Free Technology Academy

    NARCIS (Netherlands)

    Potters, Hanneke; Berlanga, Adriana; Bijlsma, Lex

    2012-01-01

    Potters, H., Berlanga, A. J., & Lex, B. (2011). Peer Production & Peer Support at the Free Technology Academy. In G. van de Veer, P. B. Sloep, & M. van Eekelen (Eds.), Proceedings Computer Science Education Research Conference (CSERC '11) (pp. 49-58). April, 7-8, 2011, Heerlen, The Netherlands: ACM.

  4. Students' use of Facebook for peer-to-peer learning

    DEFF Research Database (Denmark)

    Dalsgaard, Christian

    are using Facebook groups to help each other with all kinds of school-related matters, including issues relating directly to academic subjects. Based on the findings from the study, the paper concludes that there is an educational potential of Facebook groups in supporting peer-to-peer learning between...

  5. Key agreement in peer-to-peer wireless networks

    DEFF Research Database (Denmark)

    Cagalj, Mario; Capkun, Srdjan; Hubaux, Jean-Pierre

    2006-01-01

    We present a set of simple techniques for key establishment over a radio link in peer-to-peer networks. Our approach is based on the Diffie-Hellman key agreement protocol, which is known to be vulnerable to the “man-in-the-middle” attack if the two users involved in the protocol do not share any ...

  6. Active Minds: Creating Peer-to-Peer Mental Health Awareness

    Science.gov (United States)

    Walther, Willliam A.; Abelson, Sara; Malmon, Alison

    2014-01-01

    Utilizing student peers is one vital avenue for improving the prevention, detection, and treatment of mental health disorders on college campuses (The Campus Suicide Prevention Center of Virginia, 2011). This article will briefly review research findings indicating the importance of student peers and then focus on a promising model and growing…

  7. Calibrated peer review assignments for the earth sciences

    Science.gov (United States)

    Rudd, J.A.; Wang, V.Z.; Cervato, C.; Ridky, R.W.

    2009-01-01

    Calibrated Peer Review ??? (CPR), a web-based instructional tool developed as part of the National Science Foundation reform initiatives in undergraduate science education, allows instructors to incorporate multiple writing assignments in large courses without overwhelming the instructor. This study reports successful implementation of CPR in a large, introductory geology course and student learning of geoscience content. For each CPR assignment in this study, students studied web-based and paper resources, wrote an essay, and reviewed seven essays (three from the instructor, three from peers, and their own) on the topic. Although many students expressed negative attitudes and concerns, particularly about the peer review process of this innovative instructional approach, they also recognized the learning potential of completing CPR assignments. Comparing instruction on earthquakes and plate boundaries using a CPR assignment vs. an instructional video lecture and homework essay with extensive instructor feedback, students mastered more content via CPR instruction.

  8. Peer-to-peer communication, cancer prevention, and the internet

    Science.gov (United States)

    Ancker, Jessica S.; Carpenter, Kristen M.; Greene, Paul; Hoffmann, Randi; Kukafka, Rita; Marlow, Laura A.V.; Prigerson, Holly G.; Quillin, John M.

    2013-01-01

    Online communication among patients and consumers through support groups, discussion boards, and knowledge resources is becoming more common. In this paper, we discuss key methods through which such web-based peer-to-peer communication may affect health promotion and disease prevention behavior (exchanges of information, emotional and instrumental support, and establishment of group norms and models). We also discuss several theoretical models for studying online peer communication, including social theory, health communication models, and health behavior models. Although online peer communication about health and disease is very common, research evaluating effects on health behaviors, mediators, and outcomes is still relatively sparse. We suggest that future research in this field should include formative evaluation and studies of effects on mediators of behavior change, behaviors, and outcomes. It will also be important to examine spontaneously emerging peer communication efforts to see how they can be integrated with theory-based efforts initiated by researchers. PMID:19449267

  9. Peer til peer i arbejdet med udsatte mennesker

    DEFF Research Database (Denmark)

    Ahlmark, Nanna; Norrhäll, Oskar; Jensen, Pernille Hartvig

    Statens Institut for Folkesundhed, Syddansk Universitet har fået til opdrag at lave en formativ procesevaluering af Københavns Kommunes projekt Mænd i København. Projektet omhandler udvikling og implementering af en peer til peer indsats med henblik på at forbedre sundhed og trivsel blandt udsatte...... mænd i risiko for at udvikle type 2 diabetes. En del af evalueringsopdraget har været at tilvejebringe viden om relevant litteratur om peer-metoder. I denne forbindelse er dette notat udarbejdet til Københavns Kommunes Forebyggelsescenter Nørrebro af evaluerings-teamet, som består af forsker, Nanna...... Ahlmark, adjunkt ved Aalborg Universitet Camilla Dindler, praktikant og specialestuderende Oskar Norrhäll og specialestuderende Pernille Hartvig Jensen. Notatet er en sammenfatning af udvalgt forskningslitteratur og rapporter om peer til peer-relaterede projekter målrettet udsatte grupper i forbindelse...

  10. Peer Group Mentoring Programmes in Finnish Higher Education--Mentors' Perspectives

    Science.gov (United States)

    Skaniakos, Terhi; Penttinen, Leena; Lairio, Marjatta

    2014-01-01

    Peer mentoring is one of the most important guidance practices for first-year students entering higher education and academic life. We are interested in mentors' roles and apply the ideas of group counseling in order to increase the understanding of peer mentoring. Other aspects of guidance--content, methods, and collaboration--are approached on…

  11. Peer Assessment of Webpage Design: Behavioral Sequential Analysis Based on Eye-Tracking Evidence

    Science.gov (United States)

    Hsu, Ting-Chia; Chang, Shao-Chen; Liu, Nan-Cen

    2018-01-01

    This study employed an eye-tracking machine to record the process of peer assessment. Each web page was divided into several regions of interest (ROIs) based on the frame design and content. A total of 49 undergraduate students with a visual learning style participated in the experiment. This study investigated the peer assessment attitudes of the…

  12. PEER Business and Industry Partnership (BIP)

    Science.gov (United States)

    products laboratories publications nisee b.i.p. members education FAQs links bip members PEER Business and Industry Partnership (BIP) Current BIP members Joining the BIP Program Site Map Search PEER Business and PEER. For an annual donation, the PEER Business and Industry Partnership (BIP) involves members in PEER

  13. Thanking our peer reviewers

    Directory of Open Access Journals (Sweden)

    Storey Alan

    2013-03-01

    Full Text Available Contributing reviewers As 2013 commences I would like to take a moment to reflect and recognize the peer reviewers that made the previous year possible. Listed below are those people who reviewed for Molecular Cancer last year. All are generous individuals who donated their time to assessing and improving our authors’ submissions. Your combined efforts have been invaluable to the editorial staff in maintaining the continued success of the journal in the Open Access forum. The editors of Molecular Cancer would like to thank all the reviewers who contributed to the journal in Volume 11 (2012 by participating in the review process - taking time out of your busy schedules and even to volunteer - without your critical insights, hard work and support for the journal we wouldn’t be able to do what we do.

  14. Developing Peer Mentoring through Evaluation

    Science.gov (United States)

    Hall, Ralph; Jaugietis, Zarni

    2011-01-01

    Peer mentoring programs are an important component in the strategy to enhance the first year undergraduate experience. The operation of these programs needs to be informed by evidence as to their effectiveness. In this article we report on a six-year study of the development of a peer mentoring program in which feedback is used to improve program…

  15. Peer Mentoring for Bioinformatics presentation

    OpenAIRE

    Budd, Aidan

    2014-01-01

    A handout used in a HUB (Heidelberg Unseminars in Bioinformatics) meeting focused on career development for bioinformaticians. It describes an activity for use to help introduce the idea of peer mentoring, potnetially acting as an opportunity to create peer-mentoring groups.

  16. Teachers Seek Specialized Peer Networks

    Science.gov (United States)

    Tomassini, Jason

    2013-01-01

    Within the wide expanse of social networking, educators appear to be gravitating to more protected and exclusive spaces. While teachers often use such popular mainstream social networks as Facebook, they are more likely to seek out and return to less-established networks that offer the privacy, peer-to-peer connections, and resource sharing that…

  17. Peer Matcher : Decentralized Partnership Formation

    NARCIS (Netherlands)

    Bozdog, Nicolae Vladimir; Voulgaris, Spyros; Bal, Henri; van Halteren, Aart

    2015-01-01

    This paper presents Peer Matcher, a fully decentralized algorithm solving the k-clique matching problem. The aim of k-clique matching is to cluster a set of nodes having pair wise weights into k-size groups of maximal total weight. Since solving the problem requires exponential time, Peer Matcher

  18. Cultivating Change through Peer Teaching

    Science.gov (United States)

    Velez, Jonathan J.; Cano, Jamie; Whittington, M. Susie; Wolf, Kattlyn J.

    2011-01-01

    The purpose of this qualitative research study was to describe the impact of peer teaching on both the students and the classroom environment. Students, enrolled in two Introduction to Teaching courses in agricultural and extension education, were asked to engage in peer teaching activities. The researchers utilized discourse analysis, textual…

  19. Improving the Effectiveness of Peer Feedback for Learning

    Science.gov (United States)

    Gielen, Sarah; Peeters, Elien; Dochy, Filip; Onghena, Patrick; Struyven, Katrien

    2010-01-01

    The present study examined the effectiveness of (a) peer feedback for learning, more specifically of certain characteristics of the content and style of the provided feedback, and (b) a particular instructional intervention to support the use of the feedback. A quasi-experimental repeated measures design was adopted. Writing assignments of 43…

  20. Quality assurance in radiology: peer review and peer feedback.

    Science.gov (United States)

    Strickland, N H

    2015-11-01

    Peer review in radiology means an assessment of the accuracy of a report issued by another radiologist. Inevitably, this involves a judgement opinion from the reviewing radiologist. Peer feedback is the means by which any form of peer review is communicated back to the original author of the report. This article defines terms, discusses the current status, identifies problems, and provides some recommendations as to the way forward, concentrating upon the software requirements for efficient peer review and peer feedback of reported imaging studies. Radiologists undertake routine peer review in their everyday clinical practice, particularly when reporting and preparing for multidisciplinary team meetings. More formal peer review of reported imaging studies has been advocated as a quality assurance measure to promote good clinical practice. It is also a way of assessing the competency of reporting radiologists referred for investigation to bodies such as the General Medical Council (GMC). The literature shows, firstly, that there is a very wide reported range of discrepancy rates in many studies, which have used a variety of non-comparable methodologies; and secondly, that applying scoring systems in formal peer review is often meaningless, unhelpful, and can even be detrimental. There is currently a lack of electronic peer feedback system software on the market to inform radiologists of any review of their work that has occurred or to provide them with clinical outcome information on cases they have previously reported. Learning opportunities are therefore missed. Radiologists should actively engage with the medical informatics industry to design optimal peer review and feedback software with features to meet their needs. Such a system should be easy to use, be fully integrated with the radiological information and picture archiving systems used clinically, and contain a free-text comment box, without a numerical scoring system. It should form a temporary record

  1. Quality assurance in radiology: peer review and peer feedback

    International Nuclear Information System (INIS)

    Strickland, N.H.

    2015-01-01

    Peer review in radiology means an assessment of the accuracy of a report issued by another radiologist. Inevitably, this involves a judgement opinion from the reviewing radiologist. Peer feedback is the means by which any form of peer review is communicated back to the original author of the report. This article defines terms, discusses the current status, identifies problems, and provides some recommendations as to the way forward, concentrating upon the software requirements for efficient peer review and peer feedback of reported imaging studies. Radiologists undertake routine peer review in their everyday clinical practice, particularly when reporting and preparing for multidisciplinary team meetings. More formal peer review of reported imaging studies has been advocated as a quality assurance measure to promote good clinical practice. It is also a way of assessing the competency of reporting radiologists referred for investigation to bodies such as the General Medical Council (GMC). The literature shows, firstly, that there is a very wide reported range of discrepancy rates in many studies, which have used a variety of non-comparable methodologies; and secondly, that applying scoring systems in formal peer review is often meaningless, unhelpful, and can even be detrimental. There is currently a lack of electronic peer feedback system software on the market to inform radiologists of any review of their work that has occurred or to provide them with clinical outcome information on cases they have previously reported. Learning opportunities are therefore missed. Radiologists should actively engage with the medical informatics industry to design optimal peer review and feedback software with features to meet their needs. Such a system should be easy to use, be fully integrated with the radiological information and picture archiving systems used clinically, and contain a free-text comment box, without a numerical scoring system. It should form a temporary record

  2. How Do Peers Impact Learning? An Experimental Investigation of Peer-To-Peer Teaching and Ability Tracking

    OpenAIRE

    Kimbrough, Erik O.; McGee, Andrew; Shigeoka, Hitoshi

    2017-01-01

    Classroom peers are believed to influence learning by teaching each other, and the efficacy of this teaching likely depends on classroom composition in terms of peers' ability. Unfortunately, little is known about peer-to-peer teaching because it is never observed in field studies. Furthermore, identifying how peer-to-peer teaching is affected by ability tracking – grouping students of similar ability – is complicated by the fact that tracking is typically accompanied by changes in curriculum...

  3. Peer Influence on Managerial Honesty

    DEFF Research Database (Denmark)

    Brunner, Markus; Ostermaier, Andreas

    2018-01-01

    peers’ reports are higher than they have expected, the opposite is not true. Third, partial transparency reinforces this asymmetry in peer influence. Unlike full transparency, it allows managers to substitute self-serving assumptions for missing information and to thus justify their own dishonesty more......We investigate peer influence on managerial honesty under varying levels of transparency. In a laboratory experiment, managers report their costs to a superior to request budget. We manipulate whether the managers learn each other’s report and cost (full transparency) or the report but not the cost...... (partial transparency). The results show, first, that managers are susceptible to peer influence, as they join peers in reporting honestly and dishonestly both under full and partial transparency. Second, however, the effect of peer influence is asymmetric. While managers’ dishonesty increases much when...

  4. Peer influence on adolescent snacking

    DEFF Research Database (Denmark)

    Nørgaard, Maria Kümpel; Hansen, Kathrine Nørgaard; Grunert, Klaus G

    2013-01-01

    Purpose – The purpose of the research presented in this paper is 1) To explore peer influence and the social and symbolic meaning that adolescents (10 to 16 years) attach to snacks; and 2) to investigate the relative influence of peer influence compared to personal factors in explaining perceived...... importance of snack attributes; and 3) To investigate age and gender differences in the peer influence process. Design/methodology/approach – A web-based survey distributed via email was combined with follow-up focus groups including adolescents aged 10 to 16 years in Denmark. Findings – The survey results...... show that the youngest adolescents and the girls perceived the highest influence from peers, and that peer social influence has more effect on what adolescents perceive as important snack attributes as compared to more personal factors. The focus group results show that adolescents purchase and consume...

  5. Qualitative study of peer workers within the 'Partners in Recovery' programme in regional Australia.

    Science.gov (United States)

    Hurley, John; Cashin, Andrew; Mills, Jem; Hutchinson, Marie; Kozlowski, Desiree; Graham, Iain

    2018-02-01

    In Australia and internationally, Peer Workers are increasingly being incorporated into the mental health workforce. Underpinning this trend is the conviction that the inclusion of workers with lived experience in overcoming mental health challenges is central to transforming service delivery. Given there are few identified Australian studies into the experiences of Peer Workers, this paper reports findings from qualitative interviews conducted in a Partners In Recovery programme in one regional area in Australia. The interviews formed part of a larger mixed-method study evaluating Peer Worker roles in the programme. Thematic analysis of interview transcripts with Peer Workers and other staff employed in the programme (n = 22) was undertaken. Central to the five themes that emerged was the concept of lived experience expertise in overcoming mental health challenges. The themes were: (i) role variance, (ii) the challenges and opportunities for Peer Worker, (iii) the processes Peer Workers employed as they attempted to shape an identify and language, (iv) the inconsistencies and challenges of employing lived experience as a defining feature of the peer worker role, and (v) the nature of trust arising from lived experience relationships. From this study, it is evident that the Peer Worker role remains underdeveloped. The difficulties experienced by Peer Workers in establishing a homogenous identity and role is not unique. The process and lack of clarity around role identity revealed from the narratives, parallels the experiences of Mental Health Nursing. © 2016 Australian College of Mental Health Nurses Inc.

  6. Paired peer review of university classroom teaching in a school of nursing and midwifery.

    Science.gov (United States)

    Bennett, Paul N; Parker, Steve; Smigiel, Heather

    2012-08-01

    Peer review of university classroom teaching can increase the quality of teaching but is not universally practiced in Australian universities. To report an evaluation of paired peer-review process using both paper and web based teaching evaluation tools. Twenty university teachers in one metropolitan Australian School of Nursing and Midwifery were randomly paired and then randomly assigned to a paper based or web-based peer review tool. Each teacher reviewed each other's classroom teaching as part of a peer review program. The participants then completed an 18 question survey evaluating the peer review tool and paired evaluation process. Responses were analyzed using frequencies and percentages. Regardless of the tool used, participants found this process of peer review positive (75%), collegial (78%), supportive (61%) and non-threatening (71%). Participants reported that the peer review will improve their own classroom delivery (61%), teaching evaluation (61%) and planning (53%). The web-based tool was found to be easier to use and allowed more space than the paper-based tool. Implementation of a web-based paired peer review system can be a positive method of peer review of university classroom teaching. Pairing of teachers to review each other's classroom teaching is a promising strategy and has the potential to improve teaching in teaching universities. Copyright © 2011 Elsevier Ltd. All rights reserved.

  7. Peer Learning in Instrumental Practicing

    Science.gov (United States)

    Nielsen, Siw G.; Johansen, Guro G.; Jørgensen, Harald

    2018-01-01

    In higher music education (HME), the notion of “private teaching, private learning” has a long tradition, where the learning part rests on the student's individual practicing between instrumental lessons. However, recent research suggests that collaborative learning among peers is beneficial in several aspects, such as sense of belonging, motivation and self-efficacy. This is consistent with the concept of vicarious learning. In this study, we conducted a survey among bachelor music students in church music, performance or music education programs enrolled in a music academy (N = 96), where parts of the questionnaire addressed peer learning and peer's influence on the students's instrumental practicing, and the degree of satisfaction with their practicing. These issues were seen in relation to gender, musical genre and study program. Overall, the students reported engaging in peer learning related to their instrumental practicing, to various degrees. This involved discussing practicing matters with peers, and practicing together with peers. However, student's reports of their views on peer learning, show that they perceive it more beneficial than the amount of time reported doing it would indicate. No significant gender differences were found, but students within improvised music/jazz engaged the most in peer learning, and church music students the least. Neither the degree of engaging in peer learning nor reported influence from peers correlated significantly with the degree of satisfaction. We discuss whether a general dissatisfaction is caused by being in a competitive learning environment combined with a privatized culture for learning. Finally, we suggest that collaborative forums for instrumental practicing within HME institutions can function as constructive and supportive arenas to enhance students learning and inner motivation. PMID:29599738

  8. Peer Learning in Instrumental Practicing.

    Science.gov (United States)

    Nielsen, Siw G; Johansen, Guro G; Jørgensen, Harald

    2018-01-01

    In higher music education (HME), the notion of "private teaching, private learning" has a long tradition, where the learning part rests on the student's individual practicing between instrumental lessons. However, recent research suggests that collaborative learning among peers is beneficial in several aspects, such as sense of belonging, motivation and self-efficacy. This is consistent with the concept of vicarious learning. In this study, we conducted a survey among bachelor music students in church music, performance or music education programs enrolled in a music academy ( N = 96), where parts of the questionnaire addressed peer learning and peer's influence on the students's instrumental practicing, and the degree of satisfaction with their practicing. These issues were seen in relation to gender, musical genre and study program. Overall, the students reported engaging in peer learning related to their instrumental practicing, to various degrees. This involved discussing practicing matters with peers, and practicing together with peers. However, student's reports of their views on peer learning, show that they perceive it more beneficial than the amount of time reported doing it would indicate. No significant gender differences were found, but students within improvised music/jazz engaged the most in peer learning, and church music students the least. Neither the degree of engaging in peer learning nor reported influence from peers correlated significantly with the degree of satisfaction. We discuss whether a general dissatisfaction is caused by being in a competitive learning environment combined with a privatized culture for learning. Finally, we suggest that collaborative forums for instrumental practicing within HME institutions can function as constructive and supportive arenas to enhance students learning and inner motivation.

  9. Peer Learning in Instrumental Practicing

    Directory of Open Access Journals (Sweden)

    Siw G. Nielsen

    2018-03-01

    Full Text Available In higher music education (HME, the notion of “private teaching, private learning” has a long tradition, where the learning part rests on the student's individual practicing between instrumental lessons. However, recent research suggests that collaborative learning among peers is beneficial in several aspects, such as sense of belonging, motivation and self-efficacy. This is consistent with the concept of vicarious learning. In this study, we conducted a survey among bachelor music students in church music, performance or music education programs enrolled in a music academy (N = 96, where parts of the questionnaire addressed peer learning and peer's influence on the students's instrumental practicing, and the degree of satisfaction with their practicing. These issues were seen in relation to gender, musical genre and study program. Overall, the students reported engaging in peer learning related to their instrumental practicing, to various degrees. This involved discussing practicing matters with peers, and practicing together with peers. However, student's reports of their views on peer learning, show that they perceive it more beneficial than the amount of time reported doing it would indicate. No significant gender differences were found, but students within improvised music/jazz engaged the most in peer learning, and church music students the least. Neither the degree of engaging in peer learning nor reported influence from peers correlated significantly with the degree of satisfaction. We discuss whether a general dissatisfaction is caused by being in a competitive learning environment combined with a privatized culture for learning. Finally, we suggest that collaborative forums for instrumental practicing within HME institutions can function as constructive and supportive arenas to enhance students learning and inner motivation.

  10. Empowering adolescents to engage in healthy behaviours through peer leadership training in the townships of Cape Town

    DEFF Research Database (Denmark)

    Eklund Karlsson, Leena; Andersson, Mikael; Johansson, Josefine

    2014-01-01

    and qualitative interviews and analysed through thematic content analysis. The results showed that peer educators’ self-esteem, confidence and motivation increased, as did their knowledge and skills related to communication, supporting and motivating peers and clients. Additionally the results showed......This paper investigated peer educators’ perceptions of their self-empowerment, learning, and experiences of being a peer educator within the Leadership South Programme (LSP) in Cape Town, South Africa. The data about the peer educators’ perceptions was gathered through open-ended questionnaires...

  11. Peer relationships and academic achievement

    Directory of Open Access Journals (Sweden)

    Krnjajić Stevan B.

    2002-01-01

    Full Text Available After their childhood, when children begin to establish more intensive social contacts outside family, first of all, in school setting, their behavior i.e. their social, intellectual, moral and emotional development is more strongly affected by their peers. Consequently, the quality of peer relationships considerably affects the process of adaptation and academic achievement and their motivational and emotional attitude towards school respectively. Empirical findings showed that there is bi-directional influence between peer relationships and academic achievement. In other words, the quality of peer relationships affects academic achievement, and conversely, academic achievement affects the quality of peer relationships. For example, socially accepted children exhibiting prosocial, cooperative and responsible forms of behavior in school most frequently have high academic achievement. On the other hand, children rejected by their peers often have lower academic achievement and are a risk group tending to delinquency, absenteeism and drop out of school. Those behavioral and interpersonal forms of competence are frequently more reliable predictors of academic achievement than intellectual abilities are. Considering the fact that various patterns of peer interaction differently exert influence on students' academic behavior, the paper analyzed effects of (a social competence, (b social acceptance/rejection, (c child's friendships and (d prosocial behavior on academic achievement.

  12. Assisted delivery with forceps

    Science.gov (United States)

    ... page: //medlineplus.gov/ency/patientinstructions/000509.htm Assisted delivery with forceps To use the sharing features on ... called vacuum assisted delivery . When is a Forceps Delivery Needed? Even after your cervix is fully dilated ( ...

  13. A peer-to-peer platform for decentralized logistics

    OpenAIRE

    Gallay, Olivier; Korpela, Kari; Tapio, Niemi; Nurminen, Jukka K.; Kersten, Wolfgang; Blecker, Thorsten; Ringle, Christian M.

    2017-01-01

    We introduce a novel platform for decentralized logistics, the aim of which is to magnify and accelerate the impact offered by the integration of the most recent advances in Information and Communication Technologies (ICTs) to multi-modal freight operations. The essence of our peer-to-peer (P2P) framework distributes the management of the logistics operations to the multiple actors according to their available computational resources. As a result, this new approach prevents the dominant playe...

  14. Surfing Peer-to-Peer IPTV: Distributed Channel Switching

    Science.gov (United States)

    Kermarrec, A.-M.; Le Merrer, E.; Liu, Y.; Simon, G.

    It is now common for IPTV systems attracting millions of users to be based on a peer-to-peer (P2P) architecture. In such systems, each channel is typically associated with one P2P overlay network connecting the users. This significantly enhances the user experience by relieving the source from dealing with all connections. Yet, the joining process resulting in a peer to be integrated in channel overlay usually requires a significant amount of time. As a consequence, switching from one channel to another is far to be as fast as in IPTV solutions provided by telco operators. In this paper, we tackle the issue of efficient channel switching in P2P IPTV system. This is to the best of our knowledge the first study on this topic. First, we conducted and analyzed a set of measurements of one of the most popular P2P systems (PPlive). These measurements reveal that the set of contacts that a joining peer receives from the central server are of the utmost importance in the start-up process. On those neigbors, depends the speed to acquire the first video frames to play. We then formulate the switching problem, and propose a simple distributed algorithm, as an illustration of the concept, which aims at leveraging the presence of peers in the network to fasten the switch process. The principle is that each peer maintains as neighbors peers involved in other channels, providing peers with good contacts upon channel switching. Finally, simulations show that our approach leads to substantial improvements on the channel switching time. As our algorithmic solution does not have any prerequisite on the overlays, it appears to be an appealing add-on for existing P2P IPTV systems.

  15. Peer to peer energy trading with electric vehicles

    OpenAIRE

    Alvaro-Hermana, R.; Fraile-Ardanuy, J.; Zufiria, P.; Knapen, Luk; Janssens, Davy

    2016-01-01

    This paper presents a novel peer-to-peer energy trading system between two sets of electric vehicles, which significantly reduces the impact of the charging process on the power system during business hours. This trading system is also economically beneficial for all the users involved in the trading process. An activity-based model is used to predict the daily agenda and trips of a synthetic population for Flanders (Belgium). These drivers can be initially classified into three sets; after d...

  16. Gossip in a Smartphone Peer-to-Peer Network

    OpenAIRE

    Newport, Calvin

    2017-01-01

    In this paper, we study the fundamental problem of gossip in the mobile telephone model: a recently introduced variation of the classical telephone model modified to better describe the local peer-to-peer communication services implemented in many popular smartphone operating systems. In more detail, the mobile telephone model differs from the classical telephone model in three ways: (1) each device can participate in at most one connection per round; (2) the network topology can undergo a pa...

  17. Exploring Peer-to-Peer Library Content and Engagement on a Student-Run Facebook Group

    Science.gov (United States)

    van Beynen, Kaya; Swenson, Camielle

    2016-01-01

    Student-run Facebook groups offer librarians a new means of interacting with students in their native digital domain. Facebook groups, a service launched in 2010 enables university students to create a virtual forum to discuss their concerns, issues, and promote events. While still a relatively new feature, these groups are increasingly being…

  18. Coalition-based multimedia peer matching strategies for P2P networks

    Science.gov (United States)

    Park, Hyunggon; van der Schaar, Mihaela

    2008-01-01

    In this paper, we consider the problem of matching users for multimedia transmission in peer-to-peer (P2P) networks and identify strategies for fair resource division among the matched multimedia peers. We propose a framework for coalition formation, which enables users to form a group of matched peers where they can interact cooperatively and negotiate resources based on their satisfaction with the coalition, determined by explicitly considering the peer's multimedia attributes. In addition, our proposed approach goes a step further by introducing the concept of marginal contribution, which is the value improvement of the coalition induced by an incoming peer. We show that the best way for a peer to select a coalition is to choose the coalition that provides the largest division of marginal contribution given a deployed value-division scheme. Moreover, we model the utility function by explicitly considering each peer's attributes as well as the cost for uploading content. To quantify the benefit that users derive from a coalition, we define the value of a coalition based on the total utility that all peers can achieve jointly in the coalition. Based on this definition of the coalition value, we use an axiomatic bargaining solution in order to fairly negotiate the value division of the upload bandwidth given each peer's attributes.

  19. A Behaviorally Specific, Empirical Alternative to Bullying: Aggravated Peer Victimization.

    Science.gov (United States)

    Finkelhor, David; Shattuck, Anne; Turner, Heather; Hamby, Sherry

    2016-11-01

    To test a behaviorally specific measure of serious peer victimization, called aggravated peer victimization (APV), using empirically derived aggravating elements of episodes (injury, weapon, bias content, sexual content, multiple perpetrators, and multiple contexts) and compare this measure with the conventional Olweus bullying (OB) measure, which uses repetition and power imbalance as its seriousness criteria. The data for this study come from The National Survey of Children's Exposure to Violence 2014, a study conducted via telephone interviews with a nationally representative sample. This analysis uses the 1,949 youth ages 10-17 from that survey. The APV measure identified twice as many youth with serious episodes involving injury, weapons, sexual assaults, and bias content as the OB measure. In terms of demographic and social characteristics, the groups were very similar. However, the APV explained significantly more of the variation in distress than the OB (R 2  = .19 vs. .12). An empirical approach to identifying the most serious incidents of peer victimization has advantages in identifying more of the youth suffering the effects of peer victimization. Moreover, its behaviorally specific criteria also bypass the difficult challenge of trying to reliably assess what is truly bullying with its ambiguous definitional element of power imbalance. Copyright © 2016 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

  20. The third-year medical student "grapevine": managing transitions between third-year clerkships using peer-to-peer handoffs.

    Science.gov (United States)

    Masters, Dylan E; O'Brien, Bridget C; Chou, Calvin L

    2013-10-01

    As third-year medical students rotate between clerkships, they experience multiple transitions across workplace cultures and shifting learning expectations. The authors explored clerkship transitions from the students' perspective by examining the advice they passed on to their peers in preparation for new clerkships. Seventy-one students from three Veterans Affairs-based clerkship rotations at the University of California, San Francisco, School of Medicine participated in a peer-to-peer handoff session from 2008 to 2011. In the handoff session, they gave tips for optimizing performance to students starting the clerkship they had just completed. The authors transcribed student comments from four handoff sessions and used qualitative content analysis to identify and compare advice across clerkships. Students shared advice about workplace culture, content learning, logistics, and work-life balance. Common themes included expectations of the rotation, workplace norms, specific tasks, learning opportunities, and learning strategies. Comments about patient care and work-life balance were rare. Students emphasized different themes for each clerkship; for example, for some clerkships, students commented heavily on tasks and content learning, while in another students focused on workplace culture and exam preparation. These findings characterize the transitions that third-year students undergo as they rotate into new clinical training environments. Students emphasized different aspects of each clerkship in the advice they passed to their peers, and their comments often describe informal norms or opportunities that official clerkship orientations may not address. Peer-to-peer handoffs may help ease transitions between clerkships with dissimilar cultures and expectations.

  1. 2017 Project Peer Review Report

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2018-02-06

    This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the 2017 U.S. Department of Energy Bioenergy Technologies Office's Peer Review meeting.

  2. University Data Partnership Peer Exchange

    Science.gov (United States)

    2012-03-01

    In March 2012, the Connecticut (CTDOT) and New Mexico (NMDOT) Departments of Transportation met in Baton Rouge, Louisiana for a two-day peer session dedicated to exploring the intricate 12-year safety data partnership between the Louisiana Department...

  3. Active gamblers as peer counselors.

    Science.gov (United States)

    Rosecrance, J

    1988-07-01

    Problem gambling is becoming a major social concern. The efficacy of current treatment programs that use a compulsion model which requires abstinence and attendance at Gamblers Anonymous meetings is open to question. The researcher advocates a controlled-gambling approach as a viable alternative to conventional methods. The centerpiece of his program is the use of active gamblers as peer counselors. A suggested format for incorporating peer counselors into an actual treatment program is presented.

  4. Peer assessment in architecture education

    OpenAIRE

    Teixeira de Sampayo, Mafalda; Sousa-Rodrigues, David; Jimenez-Romero, Cristian; Johnson, Jeffrey

    2014-01-01

    The role of peer assessment in education has become of particular interest in recent years, mainly because of its potential benefits in improving student’s learning and benefits in time management by allowing teachers and tutors to use their time more efficiently to get the results of student’s assessments quicker. Peer assessment has also relevant in the context of distance learning and massive open online courses (MOOCs).

  5. Peer review in forensic science.

    Science.gov (United States)

    Ballantyne, Kaye N; Edmond, Gary; Found, Bryan

    2017-08-01

    Peer review features prominently in the forensic sciences. Drawing on recent research and studies, this article examines different types of peer review, specifically: editorial peer review; peer review by the scientific community; technical and administrative review; and verification (and replication). The article reviews the different meanings of these quite disparate activities and their utility in relation to enhancing performance and reducing error. It explains how forensic practitioners should approach and use peer review, as well as how it should be described in expert reports and oral testimony. While peer review has considerable potential, and is a key component of modern quality management systems, its actual value in most forensic science settings has yet to be determined. In consequence, forensic practitioners should reflect on why they use specific review procedures and endeavour to make their actual practices and their potential value transparent to consumers; whether investigators, lawyers, jurors or judges. Claims that review increases the validity of a scientific technique or accuracy of opinions within a particular case should be avoided until empirical evidence is available to support such assertions. Copyright © 2017 Elsevier B.V. All rights reserved.

  6. An Examination of Peer-Delivered Parenting Skills Programs Across New York State.

    Science.gov (United States)

    Acri, Mary C; Craig, Nancy; Adler, Josh

    2018-03-24

    Peers are an important adjunct to the public mental health service system, and are being increasingly utilized across the country as a cost-effective solution to workforce shortages. Despite the tremendous growth of peer-delivered support over the past two decades, it has only been within the past few years that peer programs have been the subject of empirical inquiry. The purpose of this study was to examine the prevalence and characteristics of peer-delivered parenting programs across the New York State public mental health service system. We surveyed 46 family peer organizations across New York State regarding their delivery of structured peer-delivered parenting programs. Thirty-four (76%) completed the questionnaire, and of them, 18 (53%) delivered a parenting program. Subsequent interviews with seven of the 18 organizations revealed peer organizations had been delivering eight unique parenting programs for upwards of two decades. Additionally, organizations offered multiple supports to families to participate. Training, supervision, and issues around fidelity are discussed, as well as the implications of this study for states utilizing a peer workforce.

  7. Taking a Gamble for High Rewards? Management Perspectives on the Value of Mental Health Peer Workers.

    Science.gov (United States)

    Byrne, Louise; Roennfeldt, Helena; O'Shea, Peri; Macdonald, Fiona

    2018-04-13

    Mental health peer work is attracting growing interest and provides a potentially impactful method of service user involvement in mental health design and delivery, contributing to mental health reform. The need to effectively support this emerging workforce is consequently increasing. This study aimed to better understand the views of management in relation to peer work and specifically explores the value of peer work from the perspective of management. This qualitative research employed grounded theory methods. There were 29 participants in total, employed in both peer designated and non-peer designated management roles, in not for profit and public health organisations in Queensland, Australia. The value of peer work as described by participants is found to be partially dependent on practical supports and strategies from the organisation. There were high benefits for all facets of the organisation when effective recruitment and ongoing support for peer workers was prioritised and a higher perception of limitations when they were not. Due to some parallels, it may be useful to explore the potential for peer work to be conceptually and/or practically considered as a form of diversity and inclusion employment.

  8. Focus on Delivery

    DEFF Research Database (Denmark)

    Hasman, Kirsten; Barfoed, Anne

    Background: Compared to other Nordic countries, Denmark has a high incidence of anal sphincter injury. Recent studies indicate that a strict focus on prevention of severe perineal trauma has decreased the incidence (1). This has resulted in changed clinical procedures in several Danish labour wards...... (2). It is, however, not clarified which of the multifaceted aspects of preventing perineal injury that might explain the decrease (3). Aims: We hypothesized that the use of structured reflection on a clinical practice by midwives and midwifery students would increase both parts’ knowledge on how...... attended the delivery, facilitated the midwife’s and the student’s structured reflection. Further, the project midwife held daily simulation workshops with midwives and students. Two focus group interviews with students and midwives were conducted and analyzed using content analysis. Results and conclusion...

  9. Peer Review: Has It a Future?

    Science.gov (United States)

    Soh, Kay Cheng

    2013-01-01

    Although its history is short, peer review has fast become a fixture of journal publications acquiring the status of a ritual in the academia. Many relevant and important issues have been raised leading to doubts about the value of peer review. The advent of electronic publishing further threatens the future of peer review. For peer review to…

  10. 40 CFR 194.27 - Peer review.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Peer review. 194.27 Section 194.27... § 194.27 Peer review. (a) Any compliance application shall include documentation of peer review that has... barrier evaluation as required in § 194.44. (b) Peer review processes required in paragraph (a) of this...

  11. 45 CFR 1388.9 - Peer review.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Peer review. 1388.9 Section 1388.9 Public Welfare... PROGRAM THE UNIVERSITY AFFILIATED PROGRAMS § 1388.9 Peer review. (a) The purpose of the peer review... D, Section 152 of the Act, must be evaluated through the peer review process. (c) Panels must be...

  12. Quantifying Feedback – Insights Into Peer Assessment Data

    DEFF Research Database (Denmark)

    Wind, David Kofoed; Jensen, Ulf Aslak

    2017-01-01

    The act of producing content - for example in forms of written reports - is one of the most used methods for teaching and learning all the way from primary school to university. It is a learning tool which helps students relate their theories to practice. Getting relevant and helpful feedback...... of more than 10,000 students. The students have together made more than 100,000 peer-evaluations of work by other students, and these evaluations together contain more than 10,000,000 words of text feedback. A key problem when using peer assessment is to ensure high quality feedback between peers....... Feedback here can be a combination of quantitative / summative feedback (numerical) and qualitative / formative feedback (text). A lot of work has been done on validating and ensuring quality of quantitative feedback. We propose a way to let students evaluate the quality of the feedback they receive...

  13. Peer Involvement in University Students' Education

    Directory of Open Access Journals (Sweden)

    Zlatka Cugmas

    2016-12-01

    Full Text Available We investigated the correlations between peer involvement in students’ education and their self-perception, attachment style, relationships with peers, personality and well-being. We used the Inventory of parent and peer attachment (Armsden & Greenberg, 1987, Relationship questionnaire (Bartholomew & Horowitz, 1991, Questionnaire of the subjects’ self-perceptions (Cugmas, 2012 and The big five questionnaire (BFQ; Caprara et al, 2002. We developed the questionnaires of peer involvement and subjects’ well-being. Positive relationships with peers, secure attachment style, positive self-perceptions, some personal characteristics and well-being were positively associated with peer support, and negatively with peer pressure.

  14. Perception and Management of Risk in Internet-Based Peer-to-Peer Milk-Sharing

    Science.gov (United States)

    Gribble, Karleen D.

    2014-01-01

    The perception and management of the risks of peer-to-peer milk sharing was explored via a written questionnaire administered to 97 peer milk donors and 41 peer milk recipients who were recruited via Facebook. All recipients' respondents were aware that there were risks associated with using peer-shared milk and took action to mitigate these…

  15. Peer review statement

    Science.gov (United States)

    2012-11-01

    All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the editors of the 26th IAHR Symposium on Hydraulic Machinery and Systems proceedings. Reviews were conducted by expert referees from the International Technical Committee to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. The members of the Scientific Committee who selected and reviewed the papers included in the Proceedings of the 26th IAHR Symposium on Hydraulic Machinery and Systems are: Yulin WU Tsinghua University China François AVELLAN EPFL-LMH Switzerland (principal) Xingqi LUO Xi'an University of Sci & Tech China Martin BÖHLE Kaiserslautern University Germany Gerard BOIS Arts et Métiers ParisTech France Luca D'AGOSTINO University of Pisa Italy Eduard EGUSQUIZA Polytechnical University Catalonia Spain Richard FISHER Voith Hydro Inc USA Regiane FORTES-PATELLA Institute Polytechnique de Grenoble France Aleksandar GAJIC University of Belgrade Serbia Wei YANG China Agriculture University China YinLu YOUNG University of Michigan USA Adrian LUNGU Dunarea de Jos University of Galati Romania Arpad FAY University of Miskolcz Hungary José GONZÁLEZ Universidad de Oviedo Spain Baoshan ZHU Tsinghua University China Hongxun CHEN Shanghai University China Chisachi KATO University of Tokyo Japan Zhenyue MA Dalian University of Sci & Tech China Honggang FAN Tsinghua University China François GUIBAULT Ecole Polytechnique de Montreal Canada Pengcheng GUO Xian University of Technology China Leqing WANG Zhejiang University China Toshiaki IKOHAGI Tohoku University Japan Jiandong YANG Wuhan University China Jianzhong ZHOU Huazhong University of Sci & Tech China Jinwei LI NULL China Rennian LI Lanzhou University of Sci & Tech China Houlin LIU NULL China Juan LIU Tsinghua University China Shuhong LIU Tsinghua University China Xianwu LUO Tsinghua University China Michihiro NISHI Tsinghua

  16. Partnering with insiders: A review of peer models across community-engaged research, education and social care.

    Science.gov (United States)

    Vaughn, Lisa M; Whetstone, Crystal; Boards, Alicia; Busch, Melida D; Magnusson, Maria; Määttä, Sylvia

    2018-03-07

    Within community-engaged research, education and social care, peer models that partner with local "insiders" are increasingly common. Peer models are composed of insider "lay" community members who often share similarities or background with a project's target population. Peers are not academically trained, but work alongside researchers and professionals to carry out specific tasks within a project, or in the truest sense of partnership, peers collaborate throughout the project from start to finish as an equal member of the team. Although peer models are used widely, the literature lacks consistency and clarity. This systematic review of literature used a qualitative thematic synthesis to examine and report how, where and why peer models have been used in research, education and social care. We examined the language and titles used to describe the peers, details of their involvement in community-engaged projects, the setting, content/topic of study, level of engagement and related benefits/outcomes of such models. Focusing on the last 10 years, we conducted a comprehensive literature search twice between September 2016 and June 2017. The search resulted in 814 articles which were assessed for eligibility. Overall, 251 articles met our inclusion criteria and were categorised into three categories: empirical (n = 115); process/descriptive (n = 93); and "about" peers (n = 43). Findings suggest that there is a wide variety of peers, titles and terminology associated with peer models. There is inconsistency in how these models are used and implemented in research studies and projects. The majority of articles used an employment peer model, while only a handful involved peers in all phases of the project. The results of this literature review contribute to understanding the use, development and evolution of peer models. We highlight potential benefits of peer models for peers, their communities and community-engaged work, and we offer recommendations for future

  17. 2015 DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2015-10-01

    This report summarizes comments from the Peer Review Panel at the 2015 DOE Hydrogen and Fuel Cells Program Annual Merit Review, held on June 8-12, 2015, in Arlington, Virginia. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; manufacturing R&D; technology validation; safety, codes, and standards; market transformation; and systems analysis.

  18. 2011 DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2011-09-01

    This report summarizes comments from the Peer Review Panel at the 2011 DOE Hydrogen and Fuel Cells Program Annual Merit Review, held on May 9-13, 2011, in Arlington, Virginia. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; manufacturing R&D; technology validation; safety, codes, and standards; education; market transformation; and systems analysis.

  19. 2010 DOE Hydrogen Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2010-12-01

    This report summarizes comments from the Peer Review Panel at the 2010 DOE Hydrogen Program Annual Merit Review, held on June 7-11, 2010, in Washington, DC. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; manufacturing R&D; technology validation; safety, codes, and standards; education; and systems analysis.

  20. Peer Leadership as an Emerging High-Impact Practice: An Exploratory Study of the American Experience

    Science.gov (United States)

    Keup, Jennifer R.

    2016-01-01

    Given the powerful and ubiquitous qualities of peer influence, higher educators have begun to harness this resource in student support and service delivery by using undergraduates as leaders, mentors and educators for their fellow students. This paper analyses data from 1,942 students from 142 institutions in the United States who responded to a…

  1. 2013 DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2013-10-01

    This report summarizes comments from the Peer Review Panel at the 2013 DOE Hydrogen and Fuel Cells Program Annual Merit Review, held on May 13-17, 2013, in Arlington, Virginia. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; manufacturing R&D; technology validation; safety, codes, and standards; market transformation; and systems analysis.

  2. Peer Relationships: Comparison of homeless youth in the U.S. and South Korea

    OpenAIRE

    Thompson, Sanna J.; Kim, Jihye; McManus, Holly; Flynn, Patrick; Kim, Hyangcho

    2007-01-01

    Youth homelessness is a growing global concern; thus, homeless youth peer relationships in the U.S. and South Korea were examined. Although some aspects of street life transcended culture; individual and group behaviors varied according to perspectives related to individualism versus collectivism. Service delivery approaches are needed to develop culturally-specific interventions.

  3. Peer Relationships: Comparison of homeless youth in the U.S. and South Korea.

    Science.gov (United States)

    Thompson, Sanna J; Kim, Jihye; McManus, Holly; Flynn, Patrick; Kim, Hyangcho

    2007-01-01

    Youth homelessness is a growing global concern; thus, homeless youth peer relationships in the U.S. and South Korea were examined. Although some aspects of street life transcended culture; individual and group behaviors varied according to perspectives related to individualism versus collectivism. Service delivery approaches are needed to develop culturally-specific interventions.

  4. 2014 DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2014-10-01

    This report summarizes comments from the Peer Review Panel at the 2014 DOE Hydrogen and Fuel Cells Program Annual Merit Review, held on June 16-20, 2014, in Washington, DC. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; manufacturing R&D; technology validation; safety, codes, and standards; market transformation; and systems analysis.

  5. 2008 DOE Hydrogen Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2008-06-13

    This report summarizes comments from the Peer Review Panel at the 2008 DOE Hydrogen Program Annual Merit Review, held on June 9-13, 2008, in Arlington, Virginia. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; technology validation; safety, codes, and standards; education; systems analysis; and manufacturing.

  6. 2009 DOE Hydrogen Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    Satyapal, S. [Office of Energy Efficiency and Renewable Energy (EERE), Washington, DC (United States)

    2009-10-01

    This report summarizes comments from the Peer Review Panel at the 2009 DOE Hydrogen Program Annual Merit Review, held on May 18-22, 2009, in Arlington, Virginia. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; education; safety, codes, and standards; technology validation; systems analysis; and manufacturing R&D.

  7. 2012 DOE Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2012-09-01

    This report summarizes comments from the Peer Review Panel at the 2012 DOE Hydrogen and Fuel Cells Program Annual Merit Review, held on May 14-18, 2012, in Arlington, Virginia. It covers the program areas of hydrogen production and delivery; hydrogen storage; fuel cells; manufacturing R&D; technology validation; safety, codes, and standards; education; market transformation; and systems analysis.

  8. Transdermal drug delivery

    OpenAIRE

    Prausnitz, Mark R.; Langer, Robert

    2008-01-01

    Transdermal drug delivery has made an important contribution to medical practice, but has yet to fully achieve its potential as an alternative to oral delivery and hypodermic injections. First-generation transdermal delivery systems have continued their steady increase in clinical use for delivery of small, lipophilic, low-dose drugs. Second-generation delivery systems using chemical enhancers, non-cavitational ultrasound and iontophoresis have also resulted in clinical products; the ability ...

  9. Peer Influence on Ethnic-Racial Identity Development: A Multi-Site Investigation.

    Science.gov (United States)

    Santos, Carlos E; Kornienko, Olga; Rivas-Drake, Deborah

    2017-05-01

    The peer context features prominently in theory, and increasingly in empirical research, about ethnic-racial identity (ERI) development, but no studies have assessed peer influence on ERI using methods designed to properly assess peer influence. We examined peer influence on ERI centrality, private, and public regard using longitudinal social network analysis. Data were drawn from two sites: a predominantly Latina/o Southwestern (SW) school (N = 1034; Mage = 12.10) and a diverse Midwestern (MW) school (N = 513; Mage = 11.99). Findings showed that peers influenced each other's public regard over time at both sites. However, peer influence on centrality was evident in the SW site, whereas peer influence on private regard was evident in the MW site. Importantly, peer influence was evident after controlling for selection effects. Our integration of developmental, contextual, and social network perspectives offers a fruitful approach to explicate how ERI content may shift in early adolescence as a function of peer influence. © 2017 The Authors. Child Development © 2017 Society for Research in Child Development, Inc.

  10. Robust Reputations for Peer-to-peer Markets

    Science.gov (United States)

    2007-05-24

    a cryptographic protocol that permits persistent pseudonyms: on-line identities that maintain privacy and anonymity yet providing a strong guarantee...July 2005. [106] ——, “Resisting sybils in peer-to-peer markets,” 2007, to appear in the Proceedings of the Joint iTrust and PST Conference on Privacy ...vendors unite to voice their concerns,” Startup Journal, May 2004, http://startup.wsj.com/ ecommerce / ecommerce /20040526-wingfield.html. 179 [117] B. Yu and M

  11. Peer review statement

    Science.gov (United States)

    2010-08-01

    All papers published in this Volume 12 of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the editors of the 25th IAHR Symposium on Hydraulic Machinery and Systems proceedings, Professor Romeo Susan-Resiga, Dr Sebastian Muntean and Dr Sandor Bernad. Reviews were conducted by expert referees from the Scientific Committee to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. The members of the Scientific Committee who selected and reviewed the papers included in the Proceedings of the 25th IAHR Symposium on Hydraulic Machinery and Systems are: Anton ANTONTechnical University of Civil Engineering, BucharestRomania François AVELLANEcole Polytechnique Fédérale de LausanneSwitzerland Fidel ARZOLAEDELCAVenezuela Thomas ASCHENBRENNERVoith Hydro Gmb H & Co. KG, HeidenheimGermany Anton BERGANTLitostroj Power d.o.o., LjubljanaSlovenia Gerard BOISENSAM, LilleFrance Hermod BREKKENTNU, TrondheimNorway Stuart COULSON Voith Hydro Inc., YorkUSA Eduard EGUSQUIZAPolytechnical University Catalonia BarcelonaSpain Arpad FAYUniversity of MiskolczHungary Richard FISHERVoith Hydro Inc., York USA Regiane FORTES-PATELLAInstitut Polytechnique de GrenobleFrance Aleksandar GAJICUniversity of BelgradeSerbia Arno GEHRERAndritz Hydro GrazAustria José GONZÁLEZUniversidad de OviedoSpain François GUIBAULTEcole Polytechnique de MontrealCanada Chisachi KATOUniversity of TokyoJapan Kwang-Yong KIMInha University, IncheonKorea Jiri KOUTNIKVoith Hydro Gmb H & Co. KG, HeidenheimGermany Adrian LUNGUDunarea de Jos University of GalatiRomania Christophe NICOLETPower Vision Engineering Sàrl, LausanneSwitzerland Torbjøm K. NIELSENNTNU, TrodheimNorway Michihiro NISHIKyushu Institute of TechnologyJapan Maryse PAGEHydro Quebec IREQ, VarennesCanada Etienne PARKINSONAndritz Hydro LtdSwitzerland František POCHYLYBrno UniversityCzech Republic Stefan RIEDELBAUCHVoith Hydro Gmb H & Co. KG

  12. Mitigating Free Riding in Peer-To-Peer Networks: Game Theory ...

    African Journals Online (AJOL)

    Mitigating Free Riding in Peer-To-Peer Networks: Game Theory Approach. ... In this paper, we model the interactions between peers as a modified gift giving game and proposed an utility exchange incentive ... AJOL African Journals Online.

  13. Peer effects in risk aversion.

    Science.gov (United States)

    Balsa, Ana I; Gandelman, Néstor; González, Nicolás

    2015-01-01

    We estimate peer effects in risk attitudes in a sample of high school students. Relative risk aversion is elicited from surveys administered at school. Identification of peer effects is based on parents not being able to choose the class within the school of their choice, and on the use of instrumental variables conditional on school-grade fixed effects. We find a significant and quantitatively large impact of peers' risk attitudes on a male individual's coefficient of risk aversion. Specifically, a one standard deviation increase in the group's coefficient of risk aversion increases an individual's risk aversion by 43%. Our findings shed light on the origin and stability of risk attitudes and, more generally, on the determinants of economic preferences. © 2014 Society for Risk Analysis.

  14. Transdermal drug delivery

    Science.gov (United States)

    Prausnitz, Mark R.; Langer, Robert

    2009-01-01

    Transdermal drug delivery has made an important contribution to medical practice, but has yet to fully achieve its potential as an alternative to oral delivery and hypodermic injections. First-generation transdermal delivery systems have continued their steady increase in clinical use for delivery of small, lipophilic, low-dose drugs. Second-generation delivery systems using chemical enhancers, non-cavitational ultrasound and iontophoresis have also resulted in clinical products; the ability of iontophoresis to control delivery rates in real time provides added functionality. Third-generation delivery systems target their effects to skin’s barrier layer of stratum corneum using microneedles, thermal ablation, microdermabrasion, electroporation and cavitational ultrasound. Microneedles and thermal ablation are currently progressing through clinical trials for delivery of macromolecules and vaccines, such as insulin, parathyroid hormone and influenza vaccine. Using these novel second- and third-generation enhancement strategies, transdermal delivery is poised to significantly increase impact on medicine. PMID:18997767

  15. Peer Effects in Legislative Voting

    DEFF Research Database (Denmark)

    Harmon, Nikolaj Arpe; Fisman, Raymond; Kamenica, Emir

    2016-01-01

    variation in seating across the two venues of the Parliament (Brussels and Strasbourg), we show that this effect reflects persistent peer influence: a pair of MEPs who have sat together in the past are less likely to disagree on a vote even if they do not sit together during that particular vote.......Abstract We exploit seating rules in the European Parliament to estimate causal peer effects in legislative voting. We find that sitting next to each other reduces by 13 percent the likelihood that two Members of the European Parliament (MEPs) from the same party differ in their vote. Using...

  16. Optimization of routing strategies for data transfer in peer-to-peer networks

    International Nuclear Information System (INIS)

    Morioka, Atsushi; Igarashi, Akito

    2014-01-01

    Since peer-to-peer file-sharing systems have become familiar recently, the information traffic in the networks is increasing. Therefore it causes various traffic problems in peer-to-peer networks. In this paper, we model some features of the peer-to-peer networks, and investigate the traffic problems. Peer-to-peer networks have two notable characters. One is that each peer frequently searches for a file and download it from a peer who has the requested file. To decide whether a peer has the requested file or not in modelling of the search and download process, we introduce file-parameter P j , which expresses the amount of files stored in peer j. It is assumed that if P j is large, peer j has many files and can meet other peers' requests with high probability. The other character is that peers leave and join into the network repeatedly. Many researchers address traffic problems of data transfer in computer communication networks. To our knowledge, however, no reports focus on those in peer-to-peer networks whose topology changes with time. For routing paths of data transfer, generally, the shortest paths are used in usual computer networks. In this paper, we introduce a new optimal routing strategy which uses weights of peers to avoid traffic congestion. We find that the new routing strategy is superior to the shortest path strategy in terms of congestion frequency in data transfer

  17. Defining Peer-to-Peer Accountability From the Nurse's Perspective.

    Science.gov (United States)

    Lockett, Jacqueline Jansen; Barkley, Leslie; Stichler, Jaynelle; Palomo, Jeanne; Kik, Bozena; Walker, Christopher; Donnelly, Janet; Willon, Judy; Sanborn, Julie; O'Byrne, Noeleen

    2015-11-01

    The aim of this study was to define and create a conceptual model for peer-to-peer accountability (P to PA). Many organizations cite the importance of peer accountability (PA) as essential in ensuring patient safety. Professionalism in nursing requires self-regulation of practice and PA. Although discussed in the literature, P to PA is not conceptually defined. A grounded theory study design with constant comparative data collection and analysis was used to explore nurses' definitions of P to PA and their perceptions of motivators and barriers to engaging in P to PA. Transcripts of digital recordings of all interviews were analyzed using line-by-line coding until identified themes emerged. P to PA was defined as the act of speaking up when one observes a peer not practicing to acceptable standards. A conceptual model illustrates the antecedents, attributes, and consequences of P to PA. P to PA is the professional responsibility of every nurse and healthcare provider and is essential for safe patient care. The conceptual definition facilitates actualization of P to PA in practice.

  18. Peers for Promotion: Achieving Academic Advancement through Facilitated Peer Mentoring

    Science.gov (United States)

    Ockene, Judith K.; Milner, Robert J.; Thorndyke, Luanne E.; Congdon, John; Cain, Joanna M.

    2017-01-01

    The promotion process is challenging, particularly for non-tenure track faculty in academic medicine. To address this challenge, we implemented a facilitated peer mentoring program that included a structured curriculum with regular meetings, guided by two senior faculty mentors. Participants expressed satisfaction with the program, showed…

  19. Peer Collaboration: Improving Teaching through Comprehensive Peer Review

    Science.gov (United States)

    Smith, Shelley L.

    2014-01-01

    This article includes a brief rationale and review of the literature on peer review of teaching (PRT). Based on that literature review, it offers a proposal for an optimal formative review process that results in a teaching portfolio that would reflect a faculty member's efforts and successes in a critically reflective PRT process, and contributes…

  20. Using Peer Feedback to Improve Learning via Online Peer Assessment

    Science.gov (United States)

    Liu, Eric Zhi-Feng; Lee, Chun-Yi

    2013-01-01

    This study investigates the influence of various forms of peer observation and feedback on student learning. We recruited twelve graduate students enrolled in a course entitled, Statistics in Education and Psychology, at a university in northern Taiwan. Researchers adopted the case study method, and the course lasted for ten weeks. Students were…

  1. Security Issues in Cross-Organizational Peer-to-Peer Applications and Some Solutions

    Science.gov (United States)

    Gupta, Ankur; Awasthi, Lalit K.

    Peer-to-Peer networks have been widely used for sharing millions of terabytes of content, for large-scale distributed computing and for a variety of other novel applications, due to their scalability and fault-tolerance. However, the scope of P2P networks has somehow been limited to individual computers connected to the internet. P2P networks are also notorious for blatant copyright violations and facilitating several kinds of security attacks. Businesses and large organizations have thus stayed away from deploying P2P applications citing security loopholes in P2P systems as the biggest reason for non-adoption. In theory P2P applications can help fulfill many organizational requirements such as collaboration and joint projects with other organizations, access to specialized computing infrastructure and finally accessing the specialized information/content and expert human knowledge available at other organizations. These potentially beneficial interactions necessitate that the research community attempt to alleviate the security shortcomings in P2P systems and ensure their acceptance and wide deployment. This research paper therefore examines the security issues prevalent in enabling cross-organizational P2P interactions and provides some technical insights into how some of these issues can be resolved.

  2. Local Content

    CSIR Research Space (South Africa)

    Gibberd, Jeremy

    2016-10-01

    Full Text Available Local content refers to materials and products made in a country as opposed those that are imported. There is an increasing interest in the concept of local content as a means of supporting local economies and providing jobs (Belderbos & Sleuwaegen...

  3. How peer-review constrains cognition

    DEFF Research Database (Denmark)

    Cowley, Stephen

    2015-01-01

    Peer-review is neither reliable, fair, nor a valid basis for predicting ‘impact’: as quality control, peer-review is not fit for purpose. Endorsing the consensus, I offer a reframing: while a normative social process, peer-review also shapes the writing of a scientific paper. In so far as ‘cognit......Peer-review is neither reliable, fair, nor a valid basis for predicting ‘impact’: as quality control, peer-review is not fit for purpose. Endorsing the consensus, I offer a reframing: while a normative social process, peer-review also shapes the writing of a scientific paper. In so far...

  4. Coaching the Debriefer: Peer Coaching to Improve Debriefing Quality in Simulation Programs.

    Science.gov (United States)

    Cheng, Adam; Grant, Vincent; Huffman, James; Burgess, Gavin; Szyld, Demian; Robinson, Traci; Eppich, Walter

    2017-10-01

    Formal faculty development programs for simulation educators are costly and time-consuming. Peer coaching integrated into the teaching flow can enhance an educator's debriefing skills. We provide a practical guide for the who, what, when, where, why, and how of peer coaching for debriefing in simulation-based education. Peer coaching offers advantages such as psychological safety and team building, and it can benefit both the educator who is receiving feedback and the coach who is providing it. A feedback form for effective peer coaching includes the following: (1) psychological safety, (2) framework, (3) method/strategy, (4) content, (5) learner centeredness, (6) co-facilitation, (7) time management, (8) difficult situations, (9) debriefing adjuncts, and (10) individual style and experience. Institutional backing of peer coaching programs can facilitate implementation and sustainability. Program leaders should communicate the need and benefits, establish program goals, and provide assessment tools, training, structure, and evaluation to optimize chances of success.

  5. Predicting Availability of Mobile Peers in Large Peer-to-Peer Networks

    DEFF Research Database (Denmark)

    Sipos, Marton A.; Ekler, Péter

    2013-01-01

    users and network operators. In these situations, a certain redundancy must be built into the system because the availability of the nodes can vary greatly. The goal of this paper is to present a methodology to minimize the necessary redundancy by predicting the number of available nodes. The prediction......Peer-to-peer (P2P) applications for mobile devices are becoming more and more popular because of increasing bandwidth, computational performance and storage capabilities. Such a mobile based distributed architecture offers significant advantages in several scenarios from the perspective of both...

  6. The Dedisciplining of Peer Review

    Science.gov (United States)

    Frodeman, Robert; Briggle, Adam

    2012-01-01

    The demand for greater public accountability is changing the nature of ex ante peer review at public science agencies worldwide. Based on a four year research project, this essay examines these changes through an analysis of the process of grant proposal review at two US public science agencies, the National Institutes of Health (NIH) and the…

  7. Some Limits in Peer Assessment

    Science.gov (United States)

    Domingo, Joan; Martinez, Herminio; Gomariz, Spartacus; Gámiz, Juan

    2014-01-01

    Nowadays, the educational methodology known as "peer assessment" constitutes one of the pillars of formative assessment at the different levels of the educational system, particularly at the University level. In fact, in recent years, it has been increasingly used to enhance students' meaningful learning, as it is considered to be an…

  8. Perkiomen Valley Peer Education Program.

    Science.gov (United States)

    Barber, Nicole; And Others

    Adolescence is a vulnerable period of life; teens are faced with challenging issues such as stress and suicide. Facilitating informed decision-making among adolescents requires educational programs that present information in compelling and credible ways. With this in mind, a peer education program was developed, using older students to teach…

  9. Peers on Socrates and Plato

    Science.gov (United States)

    Mackenzie, Jim

    2014-01-01

    There is more to be said about two of the topics Chris Peers addresses in his article "Freud, Plato and Irigaray: A morpho-logic of teaching and learning" (2012, Educational Philosophy and Theory, 44, 760-774), namely the Socratic method of teaching and Plato's stance with regard to women and feminism. My purpose in this article is…

  10. Lykkes peer-feedback altid?

    DEFF Research Database (Denmark)

    Jørgensen, Bente Mosgaard

    Agenda. International Journal of English Studies, 10(2), 171-184. doi:10.6018/ijes.10.2.119251 Lee, I. (2013). Research into Practice: Written Corrective Feedback. Language Teaching, 46(2), 108-119. doi:10.1017/S0261444812000390 Nicol, D. (2014). Guiding Principles for Peer Reveiw: Unlocking Learner...... Aarhus Universitet tilbydes derfor en række større og mindre opgaver, der skal give dem mulighed for at træne denne evne (se paper I, Jensen, in press, 2018). Nogle af de mindre opgaver inkluderer brugen af peer-feedback. Opgaverne afvikles via systemet Peergrade, hvor de studerende online bedømmer...... til at være, (3) pege på hvilke fordele og udfordringer der er med at anvende peer-feedback i det anvendte set-up på den pågældende uddannelse og (4) foreslå hvilke krav der må stilles til et system, der skal understøtte en korrektiv peer feedback proces ? Bredt teoretisk er jura-casen et eksempel på...

  11. The Power of Peer Pressure

    Science.gov (United States)

    Wingle, Jane

    2006-01-01

    In a religion class of 26 bright creative sixth graders, one student demonstrates the power of peer pressure. Part of the morning ritual is to say prayer petitions. Students seems to be calmed by their expressions of care for their families, friends, pets, their military troops, victims of natural disasters, the homeless, etc. However, one student…

  12. Smoking Initiation: Peers and Personality

    NARCIS (Netherlands)

    C-S. Hsieh (Chih-Sheng); J.L.W. van Kippersluis (Hans)

    2016-01-01

    textabstractSocial interactions are widely recognized to play an important role in smoking initiation among adolescents. In this paper we hypothesize that individual with `stronger' personalities (i.e. emotionally stable, conscientious individuals) are better able to resist peer pressure in the

  13. Some limits in peer assessment

    Directory of Open Access Journals (Sweden)

    Joan Domingo Penya

    2014-03-01

    Full Text Available Nowadays, the known as ‘peer assessment’ is one of the pillars of formative assessment in the different levels of the educational system buts, especially, in the University level. Last years, it has been considered in order to enhance students' meaningful learning, considering it as an element of social learning from the lessons learned by other classmates, and the ability to assess their quality, compared with the level of knowledge that each student has about the subject/course evaluated, and using common evaluation criteria. Relating to this, the experience presented in this paper has been developed with two groups of students. It allows to determine how many peer assessments is prudent to ask course students in order to make a serious and reliable activity, and not as a required and mandatory exercise that has to be carried out by students simply to pass the course; in this last case, the activity could become extremely trivial and banal. Statistical analysis of the results indicates that three-peer assessments per student appraised are a good lot. In addition, on the other hand, more than thirty-peer assessments do not provide learning nor serious activities.

  14. eDelivery

    Data.gov (United States)

    US Agency for International Development — eDelivery provides the electronic packaging and delivery of closed and complete OPM investigation files to government agencies, including USAID, in a secure manner....

  15. Vacuum-assisted delivery

    Science.gov (United States)

    ... medlineplus.gov/ency/patientinstructions/000514.htm Vacuum-assisted delivery To use the sharing features on this page, ... through the birth canal. When is Vacuum-assisted Delivery Needed? Even after your cervix is fully dilated ( ...

  16. Home media server content management

    Science.gov (United States)

    Tokmakoff, Andrew A.; van Vliet, Harry

    2001-07-01

    With the advent of set-top boxes, the convergence of TV (broadcasting) and PC (Internet) is set to enter the home environment. Currently, a great deal of activity is occurring in developing standards (TV-Anytime Forum) and devices (TiVo) for local storage on Home Media Servers (HMS). These devices lie at the heart of convergence of the triad: communications/networks - content/media - computing/software. Besides massive storage capacity and being a communications 'gateway', the home media server is characterised by the ability to handle metadata and software that provides an easy to use on-screen interface and intelligent search/content handling facilities. In this paper, we describe a research prototype HMS that is being developed within the GigaCE project at the Telematica Instituut . Our prototype demonstrates advanced search and retrieval (video browsing), adaptive user profiling and an innovative 3D component of the Electronic Program Guide (EPG) which represents online presence. We discuss the use of MPEG-7 for representing metadata, the use of MPEG-21 working draft standards for content identification, description and rights expression, and the use of HMS peer-to-peer content distribution approaches. Finally, we outline explorative user behaviour experiments that aim to investigate the effectiveness of the prototype HMS during development.

  17. Implementing a centralized institutional peer tutoring program.

    Science.gov (United States)

    Gaughf, Natalie White; Foster, Penni Smith

    2016-01-01

    Peer tutoring has been found to be beneficial to both students and peer tutors in health sciences education programs. This article describes the implementation of a centralized, institutional peer tutoring program at the University of Mississippi Medical Center, an academic health science center in the U.S. The Program: This multispecialty peer tutoring program paired students experiencing academic difficulties with peer tutors who showed prior academic success, professionalism and effective communication skills. The program allowed students and peer tutors to coordinate their own tutoring services. Evaluations by both students and peer tutors showed satisfaction with the program. Recommendations for developing and implementing an effective peer tutoring program are presented, including utilization of an online system, consistent program policy with high professionalism expectations, funding, program evaluation and data tracking.

  18. Utilizing Peer Mentor Roles in Learning Communities

    Science.gov (United States)

    Rieske, Laura Jo; Benjamin, Mimi

    2015-01-01

    For a number of learning community programs, peer mentors provide an additional layer of staffing support. This chapter highlights peer mentor roles from a sample of programs and suggests important components for the construction of these roles.

  19. Articulating feedstock delivery device

    Science.gov (United States)

    Jordan, Kevin

    2013-11-05

    A fully articulable feedstock delivery device that is designed to operate at pressure and temperature extremes. The device incorporates an articulating ball assembly which allows for more accurate delivery of the feedstock to a target location. The device is suitable for a variety of applications including, but not limited to, delivery of feedstock to a high-pressure reaction chamber or process zone.

  20. Incentive Effects of Peer Pressure in Organizations

    OpenAIRE

    Kohei Daido

    2006-01-01

    This paper studies the effects of peer pressure on incentives. We assume that, in addition to the material payoff, each agent's utility includes the psychological payoff from peer pressure generated by a comparison of effort costs. We show that the optimal incentive schemes depend mainly on the degree of peer pressure and of the heterogeneity of agents. Furthermore, we examine the optimal organizational forms in terms of the principal''s intention to make use of the effects of peer pressure.

  1. Preventing DoS attacks in peer-to-peer media streaming systems

    Science.gov (United States)

    Conner, William; Nahrstedt, Klara; Gupta, Indranil

    2006-01-01

    This paper presents a framework for preventing both selfishness and denial-of-service attacks in peer-to-peer media streaming systems. Our framework, called Oversight, achieves prevention of these undesirable activities by running a separate peer-to-peer download rate enforcement protocol along with the underlying peer-to-peer media streaming protocol. This separate Oversight protocol enforces download rate limitations on each participating peer. These limitations prevent selfish or malicious nodes from downloading an overwhelming amount of media stream data that could potentially exhaust the entire system. Since Oversight is based on a peer-to-peer architecture, it can accomplish this enforcement functionality in a scalable, efficient, and decentralized way that fits better with peer-to-peer media streaming systems compared to other solutions based on central server architectures. As peer-to-peer media streaming systems continue to grow in popularity, the threat of selfish and malicious peers participating in such large peer-to-peer networks will continue to grow as well. For example, since peer-to-peer media streaming systems allow users to send small request messages that result in the streaming of large media objects, these systems provide an opportunity for malicious users to exhaust resources in the system with little effort expended on their part. However, Oversight addresses these threats associated with selfish or malicious peers who cause such disruptions with excessive download requests. We evaluated our Oversight solution through simulations and our results show that applying Oversight to peer-to-peer media streaming systems can prevent both selfishness and denial-of-service attacks by effectively limiting the download rates of all nodes in the system.

  2. Peer Review: Promoting Efficient School District Operations

    Science.gov (United States)

    Hale, Jason S.

    2010-01-01

    Many professions recognize the benefits of peer reviews to assess processes and operations because peers can more easily identify one another's inefficiencies and provide some kind of intervention. Generally, the goal of the peer review process is to verify whether the work satisfies the standards set by the industry. A number of states have begun…

  3. 7 CFR 550.17 - Peer review.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Peer review. 550.17 Section 550.17 Agriculture... § 550.17 Peer review. Upon request of the REE Agency, cooperators may be requested to provide documentation in support of peer review activities and cooperator personnel may be requested to participate in...

  4. Advancing Kinesiology through Improved Peer Review

    Science.gov (United States)

    Knudson, Duane V.; Morrow, James R., Jr.; Thomas, Jerry R.

    2014-01-01

    Peer review of scholarship is essential to journal quality, evidence, knowledge advancement, and application of that knowledge in any field. This commentary summarizes recent literature on issues related to peer-review quality and current review practice in kinesiology and provides recommendations to improve peer review in kinesiology journals. We…

  5. 42 CFR 24.5 - Peer review.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Peer review. 24.5 Section 24.5 Public Health PUBLIC....5 Peer review. An individual may not be considered for appointment into the SBRS unless his/her qualifications have been reviewed by a PHS peer review committee and the committee has recommended appointment to...

  6. Demystifying the peer-review process - workshop

    Science.gov (United States)

    Scientific writing and peer-review are integral parts of the publishing process. This workshop aims to demystify the peer-review process for early career scientists and provide insightful tips for streamlining the submission and peer review process for all researchers. Providing ...

  7. Peer Tutoring at Colleges and Universities

    Science.gov (United States)

    Kim, Mikyong Minsun

    2015-01-01

    This paper focuses on the important roles of peer tutoring and peer tutoring services that utilize student tutors in higher education. First, the roles and potential benefits of peer tutoring are identified and reviewed as they apply to various dimensions of student development. Second, the impacts, benefits, and extended beneficiaries of peer…

  8. Peer Assessment of Elementary Science Teaching Skills

    Science.gov (United States)

    Kilic, Gulsen Bagci; Cakan, Mehtap

    2007-01-01

    In this study, peer assessment was applied in assessing elementary science teaching skills. Preservice teachers taught a science topic as a team to their peers in an elementary science methods course. The peers participating in the science lesson assessed teacher-groups' elementary science teaching skills on an assessment form provided by the…

  9. Peer Education in Campus Suicide Prevention

    Science.gov (United States)

    Catanzarite, Julie A.; Robinson, Myles D.

    2013-01-01

    Student peer educators have been used by higher education intuitions to influence the education and retention of college students for many years, and most institutions have some type of peer educator program. Newton and Ender (2010) broadly define the role of peer educators as "students who have been selected, trained, and designated by a…

  10. Understanding Peer Influence in Children and Adolescents

    Science.gov (United States)

    Prinstein, Mitchell J., Ed.; Dodge, Kenneth A., Ed.

    2008-01-01

    Scientists, educators, and parents of teens have long recognized the potency of peer influences on children and youth, but until recently, questions of how and why adolescents emulate their peers were largely overlooked. This book presents a framework for understanding the processes by which peers shape each other's attitudes and behavior, and…

  11. Peer Group Influences on Adolescent Dating Aggression

    Science.gov (United States)

    Connolly, Jennifer; Friedlander, Laura

    2009-01-01

    The peer group is a critical social context for dating and romantic relationships. Peer groups provide opportunities to meet potential dating partners and set norms for acceptable dating behaviors. This article explores how peer groups influence dating and dating aggression, as well as how they can be used in prevention efforts. It also reviews…

  12. Peer Pressure: An Issue That Crosses Generations.

    Science.gov (United States)

    Kittredge, Karen; McCarthy, Alice R.

    2000-01-01

    Recent research on peer pressure shows that: parents are important to teens, today's teens face unique challenges, and teaching teens to say no does not mean losing friends. The paper presents parenting tips for countering peer pressure, noting the influence of adult peer pressure on children. A sidebar examines the right age to start talking to…

  13. Endogenous Peer Effects: Fact or Fiction?

    Science.gov (United States)

    Yeung, Ryan; Nguyen-Hoang, Phuong

    2016-01-01

    The authors examine endogenous peer effects, which occur when a student's behavior or outcome is a function of the behavior or outcome of his or her peer group. Endogenous peer effects have important implications for educational policies such as busing, school choice and tracking. In this study, the authors quantitatively review the literature on…

  14. Peer Review of Teaching: Sharing Best Practices

    Science.gov (United States)

    Golparian, Shaya; Chan, Judy; Cassidy, Alice

    2015-01-01

    In this paper, we share examples of best peer review of teaching practices, drawing on our involvement in the design and implementation of the Peer Review of Teaching program at the Centre for Teaching, Learning and Technology. We review the history of the Peer Review of Teaching Initiative at the University of British Columbia and explain key…

  15. Which Peers Matter: How Social Ties Affect Peer-Group Effects

    Science.gov (United States)

    Poldin, Oleg; Valeeva, Diliara; Yudkevich, Maria

    2016-01-01

    We study how the achievements of university students are influenced by the characteristics and achievements of peers in individuals' social networks. Defining peer group in terms of friendship and study partner ties enables us to apply a network regression model and thereby disentangle the influence of peers' performance from that of peers'…

  16. Research Paper A comparison of peer and non-peer exposure to ...

    African Journals Online (AJOL)

    Objective: This study examined peer and non-peer unwanted early sexual experiences (UESE) among 3,689 university students to establish whether peer UESE is as coercive and bothersome as non-peer UESE. Method: A self-report checklist was administered to all consenting students attending an orientation ...

  17. Peer Relations and Peer Deviance as Predictors of Reactive and Proactive Aggression among High School Girls

    Science.gov (United States)

    Uz Bas, Asli; Öz Soysal, Fatma Selda

    2016-01-01

    This study aimed to investigate associations between reactive and proactive aggression and peer relations and peer deviance among high school girls. A total of 442 high school students participated in this study. Reactive-Proactive Aggression Questionnaire, the Peer Relations Scale, and the Peer Deviance Scale were used to collect data. Results…

  18. Understanding peer effects : on the nature, estimation and channels of peer effects

    NARCIS (Netherlands)

    Feld, J.F.; Zölitz, U.N.

    2016-01-01

    This paper estimates peer effects in a university context where students are randomly assigned to sections. While students benefit from better peers on average, lowachieving students are harmed by high-achieving peers. Analyzing students’ course evaluations suggests that peer effects are driven by

  19. Understanding peer effects - On the nature, estimation and channels of peer effects

    NARCIS (Netherlands)

    Feld, J.F.; Zölitz, U.N.

    2016-01-01

    This paper estimates peer effects in a university context where students are randomly assigned to sections. While students benefit from better peers on average, low-achieving students are harmed by high-achieving peers. Analyzing students’ course evaluations suggests that peer effects are driven by

  20. Peer-to-Peer Teaching Using Multi-Disciplinary Applications as Topics

    Science.gov (United States)

    Sturdivant, Rodney X.; Souhan, Brian E.

    2011-01-01

    Most educators know that the best way to truly understand new material is to teach it. The use of students as peer educators provides numerous benefits to the student teacher and his or her classmates. Student-led instruction or peer-to-peer teaching is not a new concept or teaching technique. Peer teaching traces its roots back to the ancient…

  1. Peer-to-Peer Enclaves for Improving Network Defence

    Directory of Open Access Journals (Sweden)

    David W. Archer

    2013-07-01

    Full Text Available Information about cyberthreats within networks spreads slowly relative to the speed at which those threats spread. Typical "threat feeds" that are commercially available also disseminate information slowly relative to the propagation speed of attacks, and they often convey irrelevant information about imminent threats. As a result, hosts sharing a network may miss opportunities to improve their defence postures against imminent attack because needed information arrives too late or is lost in irrelevant noise. We envision timely, relevant peer-to-peer sharing of threat information – based on current technologies – as a solution to these problems and as a useful design pattern for defensive cyberwarfare. In our setting, network nodes form communities that we call enclaves, where each node defends itself while sharing information on imminent threats with peers that have similar threat exposure. In this article, we present our vision for this solution. We sketch the architecture of a typical node in such a network and how it might interact with a framework for sharing threat information; we explain why certain defensive countermeasures may work better in our setting; we discuss current tools that could be used as components in our vision; and we describe opportunities for future research and development.

  2. The Impact of the Delivery of Prepared Power Point Presentations on the Learning Process

    Directory of Open Access Journals (Sweden)

    Auksė Marmienė

    2011-04-01

    Full Text Available This article describes the process of the preparation and delivery of Power Point presentations and how it can be used by teachers as a resource for classroom teaching. The advantages of this classroom activity covering some of the problems and providing a few suggestions for dealing with those difficulties are also outlined. The major objective of the present paper is to investigate the students ability to choose the material and the content of Power Point presentations on professional topics via the Internet as well as the ability to prepare and deliver the presentation in front of the audience. The factors which determine the choice of the presentation subject are also analysed in this paper. After the delivery students were requested to self- and peer-assess the difficulties they faced in preparation and performance of the presentations by writing the reports. Learners’ attitudes to the choice of the topic of Power Point presentations were surveyed by administering a self-assessment questionnaire.

  3. Towards a (Decentralization-Based Typology of Peer Production

    Directory of Open Access Journals (Sweden)

    Melanie Dulong de Rosnay

    2016-03-01

    Full Text Available Online peer-production platforms facilitate the coordination of creative work and services. Generally considered as empowering participatory tools and a source of common good, they can also be, however, alienating instruments of digital labour. This paper proposes a typology of peer-production platforms, based on the centralization/decentralization levels of several of their design features. Between commons-based peer-production and crowdsourced, user-generated content “enclosed” by corporations, a wide range of models combine different social, political, technical and economic arrangements. This combined analysis of the level of (decentralization of platform features provides information on emancipation capabilities in a more granular way than a market-based qualification of platforms, based on the nature of ownership or business models only. The five selected features of the proposed typology are: ownership of means of production, technical architecture/design, social organization/governance of work patterns, ownership of the peer-produced resource, and value of the output.

  4. Student peer reviewers' views on teaching innovations and imaginative learning.

    Science.gov (United States)

    Chan, Zenobia C Y

    2016-04-01

    Various teaching innovations have been proven effective in promoting students' critical thinking, creativity, problem solving and active learning. However, little attention has been paid to the possibility of including students as peer reviewers to evaluate these innovations in light of imaginative learning. This study explored the perspective of senior students who played the role of the student peer reviewer on three teaching innovations, namely writing poetry, composing songs and creating role-plays in problem-based learning (PBL), specifically in relation to imaginative learning. A focus group interview. Ten senior nursing students who had experienced the conventional PBL approach but not the mentioned teaching innovations were invited to participate in reviewing a video recording of a PBL class using the above teaching innovations with a total of 18 junior year students. Five themes were identified using content analysis: (i) motivation to learn, (ii) increased empathy, (iii) information retention, (iv) development of critical thinking and creativity, and (v) drawbacks of teaching innovations. It is suggested that student peer reviewers should be considered, as they can bring an outsider-learner's views on understanding the impacts of teaching innovations on imaginative learning. A call should be made to invite student peer reviewers on teaching and learning approaches, and more effort should be devoted to promoting an understanding of how imaginative learning can be achieved via teaching innovations. Copyright © 2016 Elsevier Ltd. All rights reserved.

  5. Learning about technology: Family vs. peer pairings

    Science.gov (United States)

    Heller, Patricia; Padilla, Michael; Hertel, Barbara; Olstad, Roger

    Recently a number of institutions have begun sponsoring nondeficit science and/or technology learning experiences for parents and their middle school-aged children which are intended to be enriching rather than remedial or compensatory in purpose. Very little research documenting the effects of parental involvement in the education of older children has been reported, however.The intent of this article was to present two studies designed to determine whether middle school-aged children's attitudes and content achievement are different when they take a technology course with their parents (parent-child treatment) or with their peers (child-child treatment). The first study focused on learning about communications technology (primarily telegraphs, telephones and radios); the second study focused on microcomputers.Results indicate that parents have little affect in helping their children learn the subject matter of technology courses. Likewise, parents do not affect children's attitudes toward computers. Both results were attenuated by the fact that the students in the studies were high achievers who were interested in and motivated to learn the subject matter, regardless of treatment. Significant differences were noted for computer literacy favoring the parent-child group, however. Parents also seemed to effect children's attitudes toward the subject matter of the courses.Further research needs to be done with less appealing course content or with less motivated students to fully determine the effect of parent-child and child groupings in science and technology courses.

  6. UAV Delivery Monitoring System

    Directory of Open Access Journals (Sweden)

    San Khin Thida

    2018-01-01

    Full Text Available UAV-based delivery systems are increasingly being used in the logistics field, particularly to achieve faster last-mile delivery. This study develops a UAV delivery system that manages delivery order assignments, autonomous flight operation, real time control for UAV flights, and delivery status tracking. To manage the delivery item assignments, we apply the concurrent scheduler approach with a genetic algorithm. The present paper describes real time flight data based on a micro air vehicle communication protocol (MAVLink. It also presents the detailed hardware components used for the field tests. Finally, we provide UAV component analysis to choose the suitable components for delivery in terms of battery capacity, flight time, payload weight and motor thrust ratio.

  7. DOE Hydrogen Program: 2007 Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    Milliken, J.

    2007-09-01

    This report summarizes comments from the Peer Review Panel at the FY 2007 DOE Hydrogen Program Annual Merit Review, held on May 14-18, 2007, in Washington, D.C. The projects evaluated support the Department of Energy and President Bush's Hydrogen Initiative. The results of this merit review and peer evaluation are major inputs used by DOE to make funding decisions. Project areas include hydrogen production and delivery; hydrogen storage; fuel cells; technology validation; safety, codes and standards; education; and systems analysis.

  8. DOE Hydrogen Program: 2006 Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    Milliken, J.

    2006-09-01

    This report summarizes comments from the Peer Review Panel at the FY 2006 DOE Hydrogen Program Annual Merit Review, held on May 16-19, 2006, in Arlington, Virginia. The projects evaluated support the Department of Energy and President Bush's Hydrogen Initiative. The results of this merit review and peer evaluation are major inputs used by DOE to make funding decisions. Project areas include hydrogen production and delivery; hydrogen storage; fuel cells; technology validation; safety, codes and standards; education; and systems analysis.

  9. DOE Hydrogen Program: 2005 Annual Merit Review and Peer Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    Chalk, S. G.

    2005-09-01

    This report summarizes comments from the Peer Review Panel at the FY 2005 DOE Hydrogen Program Annual Merit Review, held on May 23-26, 2005, in Arlington, Virginia. The projects evaluated support the Department of Energy and President Bush's Hydrogen Initiative. The results of this merit review and peer evaluation are major inputs used by DOE to make funding decisions. Project areas include hydrogen production and delivery; hydrogen storage; fuel cells; technology validation; safety, codes and standards; education; and systems analysis.

  10. Scholarly publishing depends on peer reviewers.

    Science.gov (United States)

    Fernandez-Llimos, Fernando

    2018-01-01

    The peer-review crisis is posing a risk to the scholarly peer-reviewed journal system. Journals have to ask many potential peer reviewers to obtain a minimum acceptable number of peers accepting reviewing a manuscript. Several solutions have been suggested to overcome this shortage. From reimbursing for the job, to eliminating pre-publication reviews, one cannot predict which is more dangerous for the future of scholarly publishing. And, why not acknowledging their contribution to the final version of the article published? PubMed created two categories of contributors: authors [AU] and collaborators [IR]. Why not a third category for the peer-reviewer?

  11. Scholarly publishing depends on peer reviewers

    Directory of Open Access Journals (Sweden)

    Fernandez-Llimos F

    2018-03-01

    Full Text Available The peer-review crisis is posing a risk to the scholarly peer-reviewed journal system. Journals have to ask many potential peer reviewers to obtain a minimum acceptable number of peers accepting reviewing a manuscript. Several solutions have been suggested to overcome this shortage. From reimbursing for the job, to eliminating pre-publication reviews, one cannot predict which is more dangerous for the future of scholarly publishing. And, why not acknowledging their contribution to the final version of the article published? PubMed created two categories of contributors: authors [AU] and collaborators [IR]. Why not a third category for the peer-reviewer?

  12. Can parental monitoring and peer management reduce the selection or influence of delinquent peers? Testing the question using a dynamic social network approach.

    NARCIS (Netherlands)

    Tilton-Weaver, L.C.; Burk, W.J.; Kerr, M.; Stattin, H.

    2013-01-01

    We tested whether parents can reduce affiliation with delinquent peers through 3 forms of peer management: soliciting information, monitoring rules, and communicating disapproval of peers. We examined whether peer management interrupted 2 peer processes: selection and influence of delinquent peers.

  13. Peer Review of Launch Environments

    Science.gov (United States)

    Wilson, Timmy R.

    2011-01-01

    Catastrophic failures of launch vehicles during launch and ascent are currently modeled using equivalent trinitrotoluene (TNT) estimates. This approach tends to over-predict the blast effect with subsequent impact to launch vehicle and crew escape requirements. Bangham Engineering, located in Huntsville, Alabama, assembled a less-conservative model based on historical failure and test data coupled with physical models and estimates. This white paper summarizes NESC's peer review of the Bangham analytical work completed to date.

  14. Peer Review of Best Practices

    Science.gov (United States)

    Pearlman, J.; Buttigieg, P. L.; Simpson, P.; Munoz, C.; Dufois, F.; Heslop, E. E.

    2017-12-01

    To ensure the quality of oceanographic data, there is a clear need to employ best practices (BPs) for ocean observation and information management. However, effectively discovering these BPs is a challenge, hindering harmonized quality assurance across projects and programmes. To remedy this, we are prototyping a resource for the stable archiving and efficient discovery of BPs through a granular, semantically indexed, and consistently formatted web resource. While these technical advances have value, they cannot ensure improved oceanographic data quality without effective and inclusive peer review processes. Peer review of digitized best practices can take a number of forms from traditional (blind) peer review as practiced by journal publishers through to the evolving "open" approach where community reviews have both the authors and reviewers identified. This presentation will discuss the options for peer review mechanisms for best practices, including a hybrid approach where both expert panels and open community review are used to improve methodologies and thus downstream data quality. It is not yet clear if the ocean community prefers open versus blind reviews for best practices. It is also unclear the extent to which innovation versus solid technical base should have a higher priority in the reviews. Further, it is not clear whether the reviews should use an internal expert panel of the IODE OceanBestPractices Repository (http://www.oceanbestpractices.net/) or should be done as part of a journal publications process or both, as mentioned above. Thus, we will also describe our future approach to `field test' these review models on a multi-stakeholder compendium of digitized best practice documents.

  15. 28 CFR 34.102 - Peer review procedures.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Peer review procedures. 34.102 Section 34.102 Judicial Administration DEPARTMENT OF JUSTICE OJJDP COMPETITION AND PEER REVIEW PROCEDURES Peer Review § 34.102 Peer review procedures. The OJJDP peer review process is contained in an OJJDP “Peer...

  16. The ethics of peer review in bioethics

    Science.gov (United States)

    Wendler, David; Miller, Franklin

    2014-01-01

    A good deal has been written on the ethics of peer review, especially in the scientific and medical literatures. In contrast, we are unaware of any articles on the ethics of peer review in bioethics. Recognising this gap, we evaluate the extant proposals regarding ethical standards for peer review in general and consider how they apply to bioethics. We argue that scholars have an obligation to perform peer review based on the extent to which they personally benefit from the peer review process. We also argue, contrary to existing proposals and guidelines, that it can be appropriate for peer reviewers to benefit in their own scholarship from the manuscripts they review. With respect to bioethics in particular, we endorse double-blind review and suggest several ways in which the peer review process might be improved. PMID:24131903

  17. Breastfeeding peer support: are there additional benefits?

    Science.gov (United States)

    Wade, Deborah; Haining, Shona; Day, Ann

    2009-12-01

    Anecdotal discussion among breastfeeding peer supporters and the infant-feeding co-ordinator suggested that breastfeeding peer support provided by breastfeeding peer supporters may offer benefits to breastfeeding women and their families other than increasing breastfeeding initiation and sustainability. The aim of this research was to determine whether there was evidence to support this. The research team used focus groups to obtain information from 16 local women who had received breastfeeding peer support from breastfeeding peer supporters. The key themes that emerged were--improved mental health, increased self-esteem or confidence, parenting skills, improved family diet, breastfeeding sustainability and poor hospital experience.The findings suggest that breastfeeding peer supporters supporting mothers to breastfeed, with the intention of increasing both breastfeeding rates and sustainability, may have additional benefits in several aspects of families' lives. Breastfeeding peer support may play an important role in helping to attain targets such as reducing obesity and postnatal depression.

  18. Content Dynamics Over the Network Cloud

    Science.gov (United States)

    2015-11-04

    AFRL-AFOSR-CL-TR-2015-0003 Content dynamics over the network cloud Fernando Paganini UNIVERSIDAD ORT URUGUAY CUAREIM 1451 MONTEVIDEO, 11100 UY 11/04...approved for public release. FINAL PERFORMANCE REPORT: 7-15-2012 to 7-14-2015 AFOSR GRANT NUMBER: FA9550-12-1-0398 PI: Fernando Paganini Universidad ORT...349-362, Apr 2014. 7. M. Zubeldía, “From resource allocation to neighbor selection in peer-to-peer networks”, MS Thesis, Universidad ORT Uruguay

  19. 78 FR 78309 - Mechanical and Digital Phonorecord Delivery Compulsory License

    Science.gov (United States)

    2013-12-26

    ... time since the issuance of the NPRM, marketplace developments and changes in business models may be... and Digital Phonorecord Delivery Compulsory License AGENCY: U.S. Copyright Office, Library of Congress... locker services and purchased content locker services. Mechanical and Digital Phonorecord Delivery...

  20. Components of Maternal Healthcare Delivery System Contributing to ...

    African Journals Online (AJOL)

    Components of Maternal Healthcare Delivery System Contributing to Maternal Deaths ... transcripts were analyzed using a directed approach to content analysis. Excerpts were categorized according to three main components of the maternal ...

  1. Contributing Factors to Poor Service Delivery by Administrative ...

    African Journals Online (AJOL)

    Poor service delivery by local government is crippling South African businesses .... main categories: one focuses on an employee's internal attributes (content ... admitted that their attitude to work was adversely affected by the poor quality.

  2. Peer observation and feedback of resident teaching.

    Science.gov (United States)

    Snydman, Laura; Chandler, Daniel; Rencic, Joseph; Sung, Yung-Chi

    2013-02-01

    Resident doctors (residents) play a significant role in the education of medical students. Morning work rounds provide an optimal venue to assess resident teaching. The purpose of this study was to assess the feasibility of peer observation of resident work rounds, to evaluate resident perceptions of peer observation and to evaluate resident perceptions of peer feedback.   Twenty-four internal medicine residents were simultaneously observed by an attending physician and a peer while teaching during work rounds (between August2008 and May 2009). At year-end, residents received a survey to characterise their attitudes towards peer observation and feedback. Twenty-one residents (87.5%) completed the survey. Half (52.4%) felt that participating in the peer observation study stimulated their interest in teaching during work rounds. Prior to participation in the study, fewer than half (42.9%) felt comfortable being observed by their peers, compared with 71.4 percent after participation (p=0.02). The proportion of residents who felt comfortable giving feedback to peers increased from 26.3 to 65.0percent (p=0.004), and the proportion of residents who felt comfortable receiving feedback from peers increased from 76.2 to 95.2 percent (p=0.02). Peer observation and feedback of resident teaching during work rounds is feasible and rewarding for the residents involved. Comfort with regards to being observed by peers, with receiving feedback from peers and with giving feedback to peers significantly increased after the study. Most residents reported changes in their teaching behaviour resulting from feedback. Residents felt that observing a peer teach on work rounds was one of the most useful activities to improve their own teaching on work rounds. © Blackwell Publishing Ltd 2013.

  3. The development of peer educator-based harm reduction programmes in Northern Vietnam.

    Science.gov (United States)

    Walsh, Nick; Gibbie, Tania M; Higgs, Peter

    2008-03-01

    Injecting drug use remains an important risk factor for transmission in Vietnam, with an estimated 50% of the 290 000 people living with HIV/AIDS reporting injecting drug use as a risk factor. Despite this, effective harm reduction interventions are generally lacking. This paper describes the implementation of peer-based harm reduction programmes in two rural provinces of Vietnam. Peer educators were trained in basic HIV prevention, including harm reduction. After significant preparation work with the Provincial AIDS Committees of Bac Giang and Thanh Hoa and other relevant national, provincial and local authorities, the interventions were commenced. Harm reduction interventions were delivered through outreach as well as on-site. This included needle and syringe distribution and collection. Community advocacy occurred throughout the life of the project. Local authorities and peers believed that while there was a general reduction in stigma and discrimination, legal barriers associated particularly with the carrying of injecting equipment remained. This impacted upon the ability of peer educators to work with their clients. Peer-based delivery of harm reduction intervention is acceptable. Harm reduction interventions, including needle and syringe programmes, are feasible and acceptable in these two rural Vietnamese provinces. Community acceptance and uptake of these interventions is key to successful expansion across the region. Active participation by families of drug users seems crucial. This initiative demonstrates that despite a difficult policy environment, peer-delivered needle and syringe programmes are feasible within a rural Asian environment as long as there is adequate local political and community support.

  4. Peer Influence, Peer Status, and Prosocial Behavior: An Experimental Investigation of Peer Socialization of Adolescents' Intentions to Volunteer.

    Science.gov (United States)

    Choukas-Bradley, Sophia; Giletta, Matteo; Cohen, Geoffrey L; Prinstein, Mitchell J

    2015-12-01

    Peer influence processes have been documented extensively for a wide range of maladaptive adolescent behaviors. However, peer socialization is not inherently deleterious, and little is known about whether adolescents influence each other's prosocial behaviors, or whether some peers are more influential than others towards positive youth outcomes. This study addressed these questions using an experimental "chat room" paradigm to examine in vivo peer influence of prosocial behavior endorsement. A school-based sample of 304 early adolescents (55% female, 45% male; M(age) = 12.68) believed they were interacting electronically with same-gender grademates (i.e., "e-confederates"), whose peer status was experimentally manipulated. The participants' intent to engage in prosocial behaviors was measured pre-experiment and in subsequent "public" and "private" experimental sessions. Overall, the adolescents conformed to the e-confederates' prosocial responses in public; yet, these peer influence effects were moderated by the peer status of the e-confederates, such that youth more strongly conformed to the high-status e-confederates than to the low-status ones. There also was some evidence that these peer influence effects were maintained in the private session, indicating potential internalization of prosocial peer norms. These findings help bridge the positive youth development and peer influence literatures, with potential implications for campaigns to increase prosocial behaviors.

  5. Peer Influence, Peer Status, and Prosocial Behavior: An Experimental Investigation of Peer Socialization of Adolescents’ Intentions to Volunteer

    Science.gov (United States)

    Giletta, Matteo; Cohen, Geoffrey L.

    2018-01-01

    Peer influence processes have been documented extensively for a wide range of maladaptive adolescent behaviors. However, peer socialization is not inherently deleterious, and little is known about whether adolescents influence each other’s prosocial behaviors, or whether some peers are more influential than others towards positive youth outcomes. This study addressed these questions using an experimental “chat room” paradigm to examine in vivo peer influence of prosocial behavior endorsement. A school-based sample of 304 early adolescents (55 % female, 45 % male; Mage = 12.68) believed they were interacting electronically with same-gender grademates (i.e., “e-confederates”), whose peer status was experimentally manipulated. The participants’ intent to engage in prosocial behaviors was measured pre-experiment and in subsequent “public” and “private” experimental sessions. Overall, the adolescents conformed to the e-confederates’ prosocial responses in public; yet, these peer influence effects were moderated by the peer status of the e-confederates, such that youth more strongly conformed to the high-status e-confederates than to the low-status ones. There also was some evidence that these peer influence effects were maintained in the private session, indicating potential internalization of prosocial peer norms. These findings help bridge the positive youth development and peer influence literatures, with potential implications for campaigns to increase prosocial behaviors. PMID:26525387

  6. Patient Involvement in Safe Delivery: A Qualitative Study

    OpenAIRE

    Olfati, Forozun; Asefzadeh, Saeid; Changizi, Nasrin; Keramat, Afsaneh; Yunesian, Masud

    2015-01-01

    Introduction: Patient involvement in safe delivery planning is considered important yet not widely practiced. The present study aimed at identifythe factors that affect patient involvementin safe delivery, as recommended by parturient women. Methods: This study was part of a qualitative research conducted by content analysis method and purposive sampling in 2013. The data were collected through 63 semi-structured interviews in4 hospitalsand analyzed using thematic content analysis. The partic...

  7. Beyond student ratings: peer observation of classroom and clinical teaching.

    Science.gov (United States)

    Berk, Ronald A; Naumann, Phyllis L; Appling, Susan E

    2004-01-01

    Peer observation of classroom and clinical teaching has received increased attention over the past decade in schools of nursing to augment student ratings of teaching effectiveness. One essential ingredient is the scale used to evaluate performance. A five-step systematic procedure for adapting, writing, and building any peer observation scale is described. The differences between the development of a classroom observation scale and an appraisal scale to observe clinical instructors are examined. Psychometric issues peculiar to observation scales are discussed in terms of content validity, eight types of response bias, and interobserver reliability. The applications of the scales in one school of nursing as part of the triangulation of methods with student ratings and the teaching portfolio are illustrated. Copies of the scales are also provided.

  8. Project delivery system (PDS)

    CERN Document Server

    2001-01-01

    As business environments become increasingly competitive, companies seek more comprehensive solutions to the delivery of their projects. "Project Delivery System: Fourth Edition" describes the process-driven project delivery systems which incorporates the best practices from Total Quality and is aligned with the Project Management Institute and ISO Quality Standards is the means by which projects are consistently and efficiently planned, executed and completed to the satisfaction of clients and customers.

  9. Cooptation of Peer Support Staff: Quantitative Evidence

    Directory of Open Access Journals (Sweden)

    Anthony J. Alberta

    2014-03-01

    Full Text Available Objective In 2007, the Centers for Medicare and Medicaid Services (CMS sent a letter to state Medicaid directors outlining requirements for implementing peer-based recovery support services (P-BRSS as a Medicaid-funded service. Since then, 30 states have implemented these services. Although the literature describing implementation of P-BRSS has identified the cooptation of peer support staff (PSS as a barrier to the effective provision of P-BRSS, the evidence for it remains anecdotal. This study attempts to determine if the context of employment in either a treatment organization or peer organization affected cooptation. Methods We conducted a survey of PSS in the fall of 2013. In all, 92 of the 181 respondents were working as PSS at the time, 53 in treatment organizations. Chi-square analysis was used to determine if the context of employment had an effect on the cooptation of peer staff. Results Peer staff working in treatment organizations reported that they were supervised by treatment staff and participated in employment-related training to improve their skills at providing treatment services more frequently than their counterparts in peer organizations. Peer staff working in treatment organizations also participated in training and education to prepare for employment as treatment professionals more frequently than peer staff working in peer organizations. Conclusions and Implications for Practice Peer staff members working in treatment organizations are subject to processes of acculturation into professional cultures that peer staff working in peer organizations are not. Effective implementation of P-BRSS should include specific efforts to minimize the cooptation of peer staff.

  10. Advertising Content

    OpenAIRE

    Simon P. Anderson; Régis Renault

    2002-01-01

    Empirical evidence suggests that most advertisements contain little direct informa- tion. Many do not mention prices. We analyze a firm'ss choice of advertising content and the information disclosed to consumers. A firm advertises only product informa- tion, price information, or both; and prefers to convey only limited product information if possible. Extending the "persuasion" game, we show that quality information takes precedence over price information and horizontal product information.T...

  11. NEA international peer reviews of post-accident protection policy

    International Nuclear Information System (INIS)

    Lazo, T.

    2011-01-01

    For many years, the NEA has offered international peer reviews of national, high-level radioactive waste management policies and approaches. Until recently, this service had not been requested in the area of radiological protection. However, the 3. International Nuclear Emergency Exercise (INEX-3, 2005-2006) addressed post-accident consequence management for the first time in a broad, international sense, and helped generate significant national reflections in this area. In particular, in 2005 the French government began an extensive programme of post-emergency consequence management planning, resulting in a draft national policy to address such situations. The Finnish government used the INEX-3 exercise as a vehicle to discuss post-emergency consequence management with a broad group of governmental and private stakeholders, and also began to develop national policy in this area. In order to further refine national efforts, the French Nuclear Safety Authority (ASN) invited the NEA to perform in April 2011 its first international peer review in the radiological protection area focusing on its post-emergency consequence management policy under development. Finnish experts participated in this peer review team, and as a result, subsequently invited the NEA to perform an international peer review of its developing policy in this area in September 2011. These draft national policies and their international peer reviews are briefly presented in this paper. Feedback from both the French ASN and the Finnish STUK suggests that the detailed, external input provided by the international peer review teams have been extremely valuable in refining the content of the guides so that they are more clear, concise, understandable and implementable. It should be recalled that both national policy documents reviewed are far more detailed and extensive than described here. The intent of this article was not to provide a review of the national policies themselves, but rather to give an

  12. Peer-assisted learning in medical school: tutees’ perspective

    Directory of Open Access Journals (Sweden)

    Menezes A

    2016-01-01

    Full Text Available Audrey Menezes,1,2 Annette Burgess,1 Antonia J Clarke,1,3 Craig Mellis1 1Central Clinical School, Sydney Medical School, The University of Sydney; 2Hornsby Ku-ring-gai Hospital; 3Royal Prince Alfred Hospital, Sydney, NSW, Australia Purpose: Peer tutoring offers a valuable method of enhancing students’ learning experience in medical school. Junior students learn from senior peers to reinforce curriculum content in an engaging community environment. The aim of our study was to assess tutees’ perceptions of a formal peer tutoring program at the Central Clinical School of Sydney Medical School. We used the learning theory of the community of practice in order to understand tutees’ perspectives. Patients and methods: All Year 1 and Year 2 students within the Central Clinical School were invited to be tutored by Year 3 and Year 4 students, respectively. Tutor pairs taught a group of three to four tutees fortnightly, and the tutorials were largely clinically based. A questionnaire containing 13 closed items and four open-ended questions regarding their experiences in the program was distributed to the tutees. Descriptive statistics were used to analyze the data. Results: A total of 66 of 101 (65% Year 1 and Year 2 students took part as tutees and 42 of 106 (40% students as tutors. The tutees' response rate was 53% (35/66. Results were largely positive, with 97% of the tutees enjoying the program, 90% showing interest in tutorial topics, 91% feeling a sense of community, 100% wanting to take part next year, 97% finding small groups effective, and 97% and 91% feeling an improved understanding of medical concepts and clinical skills, respectively. Tutees perceived the most useful aspects to be learning and revision and advice from experienced peers. The most frequent suggestion for improvement was to resolve scheduling conflicts. Conclusion: Tutees found the peer tutoring program to be valuable in learning and revision, establishing a community, and

  13. Peer-to-peer as a travel accommodation option and the customer value

    OpenAIRE

    Rakovets, Elizaveta

    2016-01-01

    The purpose of the study was to investigate the concept of peer-to-peer accommodation as a travel lodging option from the customers’ point of view and the reasons for choosing that. Airbnb and Couchsurfing were used as examples of peer-to-peer accommodation. The theoretical section of the thesis covers the history of the homestay concept as the original form of peer-to-peer accommodation, its features as a part of hospitality exchange network, and the influence of modern technologies. The...

  14. How peer-review constrains cognition: on the frontline in the knowledge sector.

    Science.gov (United States)

    Cowley, Stephen J

    2015-01-01

    Peer-review is neither reliable, fair, nor a valid basis for predicting 'impact': as quality control, peer-review is not fit for purpose. Endorsing the consensus, I offer a reframing: while a normative social process, peer-review also shapes the writing of a scientific paper. In so far as 'cognition' describes enabling conditions for flexible behavior, the practices of peer-review thus constrain knowledge-making. To pursue cognitive functions of peer-review, however, manuscripts must be seen as 'symbolizations', replicable patterns that use technologically enabled activity. On this bio-cognitive view, peer-review constrains knowledge-making by writers, editors, reviewers. Authors are prompted to recursively re-aggregate symbolizations to present what are deemed acceptable knowledge claims. How, then, can recursive re-embodiment be explored? In illustration, I sketch how the paper's own content came to be re-aggregated: agonistic review drove reformatting of argument structure, changes in rhetorical ploys and careful choice of wordings. For this reason, the paper's knowledge-claims can be traced to human activity that occurs in distributed cognitive systems. Peer-review is on the frontline in the knowledge sector in that it delimits what can count as knowing. Its systemic nature is therefore crucial to not only discipline-centered 'real' science but also its 'post-academic' counterparts.

  15. Two decades of external peer review of cancer care in general hospitals; the Dutch experience.

    Science.gov (United States)

    Kilsdonk, Melvin J; Siesling, Sabine; Otter, Rene; van Harten, Wim H

    2016-03-01

    External peer review was introduced in general hospitals in the Netherlands in 1994 to assess and improve the multidisciplinary team approach in cancer care. This paper aims to explore the value, perceived impact, and (future) role of external peer review in cancer care. Semistructured interviews were held with clinicians, oncology nurses, and managers from fifteen general hospitals that participated in three rounds of peer review over a period of 16 years. Interviewees reflected on the goals and expectations, experiences, perceived impact, and future role of external peer review. Transcriptions of the interviews were coded to discover recurrent themes. Improving clinical care and organization were the main motives for participation. Positive impact was perceived on multiple aspects of care such as shared responsibilities, internal prioritization of cancer care, improved communication, and a clear structure and position of cancer care within general hospitals. Establishing a direct relationship between the external peer review and organizational or clinical impact proved to be difficult. Criticism was raised on the content of the program being too theoretical and organization-focussed after three rounds. According to most stakeholders, external peer review can improve multidisciplinary team work in cancer care; however, the acceptance is threatened by a perceived disbalance between effort and visible clinical impact. Leaner and more clinically focused programs are needed to keep repeated peer reviews challenging and worthwhile. © 2015 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.

  16. [Perspective of peer helpers regarding their experience animating a self-treatment program for panic disorders].

    Science.gov (United States)

    Perreault, Michel; Bouchard, Stéphane; Lapalme, Micheline; Laverdure, Anick; Audet, Denis; Cusson, Jean-Claude; Zacchia, Camillo; Milton, Diana; Sam Tion, Michaël; Chartier-Otis, Mariko; Marchand, André; Bélanger, Claude

    2015-01-01

    Support groups can help to reach individuals with anxiety disorders who are not or are only partly obtaining health services. The present study is based on a program that involves peer helpers as animators of a self-treatment group (Zéro-ATAQ). Their perspective has been documented in order to identify the aspects of the program which can be improved. Eleven peer helpers led the 12 sessions of the program, which was dispensed in four regions of Quebec for 32 persons having panic disorders with agoraphobia. The perspectives of ten peer animators were documented based on a semi-structured interview that took place at the end of the program, and a focus group that was held over six months later with peer animators from each of the groups. Their comments were transcribed and a thematic content analysis was conducted. All of the peer helper animators reported that they enjoyed participating in the program, that they appreciated being able to help others having an anxiety disorder, and that the program helped them in their role as animators of these types of activities. Nearly all of the peer helpers emphasized the importance of being able to count on the supervision of a professional when needed. This study revealed (1) the feasibility of implementing a program of this kind in partnership with peers, (2) the qualifications necessary to lead this type of program, (3) the requirements in terms of training and available material, and (4) the importance of supervision.

  17. How peer-review constrains cognition: on the frontline in the knowledge sector

    Science.gov (United States)

    Cowley, Stephen J.

    2015-01-01

    Peer-review is neither reliable, fair, nor a valid basis for predicting ‘impact’: as quality control, peer-review is not fit for purpose. Endorsing the consensus, I offer a reframing: while a normative social process, peer-review also shapes the writing of a scientific paper. In so far as ‘cognition’ describes enabling conditions for flexible behavior, the practices of peer-review thus constrain knowledge-making. To pursue cognitive functions of peer-review, however, manuscripts must be seen as ‘symbolizations’, replicable patterns that use technologically enabled activity. On this bio-cognitive view, peer-review constrains knowledge-making by writers, editors, reviewers. Authors are prompted to recursively re-aggregate symbolizations to present what are deemed acceptable knowledge claims. How, then, can recursive re-embodiment be explored? In illustration, I sketch how the paper’s own content came to be re-aggregated: agonistic review drove reformatting of argument structure, changes in rhetorical ploys and careful choice of wordings. For this reason, the paper’s knowledge-claims can be traced to human activity that occurs in distributed cognitive systems. Peer-review is on the frontline in the knowledge sector in that it delimits what can count as knowing. Its systemic nature is therefore crucial to not only discipline-centered ‘real’ science but also its ‘post-academic’ counterparts. PMID:26579064

  18. How peer review constrains cognition: on the frontline in the knowledge sector

    Directory of Open Access Journals (Sweden)

    Stephen John Cowley

    2015-11-01

    Full Text Available Peer-review is neither reliable, fair, nor a valid basis for predicting ‘impact’: as quality control, peer-review is not fit for purpose. Given this consensus, I propose another framing: while a normative social process, peer-review also shapes the flexible behavior called ‘writing’ a scientific paper. In so far as ‘cognition’ describes the enabling conditions for flexible behaviour, the practices of peer-review thus constrain knowledge-making. To pursue cognitive functions of peer-review, however, manuscripts must be seen as ‘symbolizations’, replicable patterns that use technologically enabled activity. On this bio-cognitive view, peer-review constrains knowledge-making by writers, editors, reviewers. Authors are prompted to recursively re-aggregate symbolizations to present what are deemed acceptable knowledge claims. How, then, can recursive re-embodiment be explored? In illustration, I sketch how the paper’s own content came to be re-aggregated: agonistic review drove reformatting of argument structure, changes in rhetorical ploys and careful choice of wordings. For this reason, the paper’s knowledge-claims can be traced to human activity that occurs in distributed cognitive systems. Peer-review is on the frontline in the knowledge sector in that it delimits what can count as knowing. Its systemic nature is therefore crucial to not only discipline-centered ‘real’ science but also its ‘post-academic’ counterparts.

  19. Healthcare system intervention for prevention of birth injuries – process evaluation of self-assessment, peer review, feedback and agreement for change

    Science.gov (United States)

    2012-01-01

    Background Patient safety is fundamental in high quality healthcare systems but despite an excellent record of perinatal care in Sweden some children still suffer from substandard care and unnecessary birth injuries. Sustainable patient safety improvements assume changes in key actors’ mental models, norms and culture as well as in the tools, design and organisation of work. Interventions positively affecting team mental models on safety issues are a first step to enhancing change. Our purpose was to study a national intervention programme for the prevention of birth injuries with the aim to elucidate how the main interventions of self-assessment, peer review, feedback and written agreement for change affected the teams and their mental model of patient safety, and thereby their readiness for change. Knowledge of relevant considerations before implementing this type of patient safety intervention series could thereby be increased. Methods Eighty participants in twenty-seven maternity units were interviewed after the first intervention sequence of the programme. A content analysis using a priori coding was performed in order to relate results to the anticipated outcomes of three basic interventions: self-assessment, peer review and written feedback, and agreement for change. Results The self-assessment procedure was valuable and served as a useful tool for elucidating strengths and weaknesses and identifying areas for improvement for a safer delivery in maternity units. The peer-review intervention was appreciated, despite it being of less value when considering the contribution to explicit outcome effects (i.e. new input to team mental models and new suggestions for actions). The feedback report and the mutual agreement on measures for improvements reached when signing the contract seemed exert positive pressures for change. Conclusions Our findings are in line with several studies stressing the importance of self-evaluation by encouraging a thorough review of

  20. Healthcare system intervention for prevention of birth injuries – process evaluation of self-assessment, peer review, feedback and agreement for change

    Directory of Open Access Journals (Sweden)

    Nyström Monica E

    2012-08-01

    Full Text Available Abstract Background Patient safety is fundamental in high quality healthcare systems but despite an excellent record of perinatal care in Sweden some children still suffer from substandard care and unnecessary birth injuries. Sustainable patient safety improvements assume changes in key actors’ mental models, norms and culture as well as in the tools, design and organisation of work. Interventions positively affecting team mental models on safety issues are a first step to enhancing change. Our purpose was to study a national intervention programme for the prevention of birth injuries with the aim to elucidate how the main interventions of self-assessment, peer review, feedback and written agreement for change affected the teams and their mental model of patient safety, and thereby their readiness for change. Knowledge of relevant considerations before implementing this type of patient safety intervention series could thereby be increased. Methods Eighty participants in twenty-seven maternity units were interviewed after the first intervention sequence of the programme. A content analysis using a priori coding was performed in order to relate results to the anticipated outcomes of three basic interventions: self-assessment, peer review and written feedback, and agreement for change. Results The self-assessment procedure was valuable and served as a useful tool for elucidating strengths and weaknesses and identifying areas for improvement for a safer delivery in maternity units. The peer-review intervention was appreciated, despite it being of less value when considering the contribution to explicit outcome effects (i.e. new input to team mental models and new suggestions for actions. The feedback report and the mutual agreement on measures for improvements reached when signing the contract seemed exert positive pressures for change. Conclusions Our findings are in line with several studies stressing the importance of self-evaluation by

  1. PSG: Peer-to-Peer semantic grid framework architecture

    Directory of Open Access Journals (Sweden)

    Amira Soliman

    2011-07-01

    Full Text Available The grid vision, of sharing diverse resources in a flexible, coordinated and secure manner, strongly depends on metadata. Currently, grid metadata is generated and used in an ad-hoc fashion, much of it buried in the grid middleware code libraries and database schemas. This ad-hoc expression and use of metadata causes chronic dependency on human intervention during the operation of grid machinery. Therefore, the Semantic Grid is emerged as an extension of the grid in which rich resource metadata is exposed and handled explicitly, and shared and managed via grid protocols. The layering of an explicit semantic infrastructure over the grid infrastructure potentially leads to increase interoperability and flexibility. In this paper, we present PSG framework architecture that offers semantic-based grid services. PSG architecture allows the explicit use of semantics and defining the associated grid services. PSG architecture is originated from the integration of Peer-to-Peer (P2P computing with semantics and agents. Ontologies are used in annotating each grid component, developing users/nodes profiles and organizing framework agents. While, P2P is responsible for organizing and coordinating the grid nodes and resources.

  2. Cooperative peer-to-peer multiagent-based systems.

    Science.gov (United States)

    Caram, L F; Caiafa, C F; Ausloos, M; Proto, A N

    2015-08-01

    A multiagent based model for a system of cooperative agents aiming at growth is proposed. This is based on a set of generalized Verhulst-Lotka-Volterra differential equations. In this study, strong cooperation is allowed among agents having similar sizes, and weak cooperation if agents have markedly different "sizes", thus establishing a peer-to-peer modulated interaction scheme. A rigorous analysis of the stable configurations is presented first examining the fixed points of the system, next determining their stability as a function of the model parameters. It is found that the agents are self-organizing into clusters. Furthermore, it is demonstrated that, depending on parameter values, multiple stable configurations can coexist. It occurs that only one of them always emerges with probability close to one, because its associated attractor dominates over the rest. This is shown through numerical integrations and simulations, after analytic developments. In contrast to the competitive case, agents are able to increase their capacity beyond the no-interaction case limit. In other words, when some collaborative partnership among a relatively small number of partners takes place, all agents act in good faith prioritizing the common good, when receiving a mutual benefit allowing them to surpass their capacity.

  3. Inspiring peer-to-peer educations with film

    Science.gov (United States)

    Vachon, R. W.

    2014-12-01

    Oceans are vast, complicated, often inaccessible, three-dimensional and dark (for the most part). The value, vulnerabilities and dynamics of marine systems are quite far removed from the consciousness of many people. However, these reasons are not alibis for not understanding and appreciating oceans deep-rooted influences on our lives. Currently, the Nereus Program, a fellowship of climate, fisheries and computer modeling scientists, are accessing school systems in person and virtually, motivating teens to tell stories about their local understanding of the ocean's influence on their communities (even if they live in a landlocked location). In it's first iteration, we are soliciting youth to communicate through the popular medium of film. These films will be assembled into an on-line digital field guide. In part, this program is designed to be a peer-to-peer educational technique, where civilians are teaching other civilians about local or regional ocean dynamics. Additionally, the act of teaching through film is a proven method for deepening engagement, learning and empowerment of the individuals producing the films.

  4. Peer perceptions of social skills in socially anxious and nonanxious adolescents.

    Science.gov (United States)

    Miers, Anne C; Blöte, Anke W; Westenberg, P Michiel

    2010-01-01

    Previous studies using adult observers are inconsistent with regard to social skills deficits in nonclinical socially anxious youth. The present study investigated whether same age peers perceive a lack of social skills in the socially anxious. Twenty high and 20 low socially anxious adolescents (13-17 years old) were recorded giving a 5-min speech. Unfamiliar peer observers (12-17 years old) viewed the speech samples and rated four social skills: speech content, facial expressions, posture and body movement, and way of speaking. Peer observers perceived high socially anxious adolescents as significantly poorer than low socially anxious adolescents on all four social skills. Moreover, for all skills except facial expressions, group differences could not be attributed to adolescents' self-reported level of depression. We suggest that therapists take the perceptions of same age peers into account when assessing the social skills of socially anxious youth.

  5. The Influence of User-Generated Content on Tourists’ Choices

    OpenAIRE

    Giacomo Del Chiappa; Carlota Lorenzo-Romero; María-del-Carmen Alarcón-del-Amo

    2015-01-01

    Most research on user-generated content (UGC) has focused on readers of comments and reviews. However, very little research is aimed at profiling travelers based on the extent to which their decisions regarding the choice of hotels are influenced by UGC. This research was therefore carried out to profile tourists based on the extent to which their choices of hotels are influenced by different types of peer-to-peer applications, while also considering their socio-demographic characteristics, f...

  6. Enhanced P2P Services Providing Multimedia Content

    Directory of Open Access Journals (Sweden)

    E. Ardizzone

    2007-01-01

    To address this major limitation, we propose an original image and video sharing system, in which a user is able to interactively search interesting resources by means of content-based image and video retrieval techniques. In order to limit the network traffic load, maximizing the usefulness of each peer contacted in the query process, we also propose the adoption of an adaptive overlay routing algorithm, exploiting compact representations of the multimedia resources shared by each peer. Experimental results confirm the validity of the proposed approach, that is capable of dynamically adapting the network topology to peer interests, on the basis of query interactions among users.

  7. An Online, Moderated Peer-to-Peer Support Bulletin Board for Depression: User-Perceived Advantages and Disadvantages.

    Science.gov (United States)

    Griffiths, Kathleen Margaret; Reynolds, Julia; Vassallo, Sara

    2015-01-01

    Online, peer-to-peer support groups for depression are common on the World Wide Web and there is some evidence of their effectiveness. However, little is known about the mechanisms by which Internet support groups (ISGs) might work. This study aimed to investigate consumer perceptions of the benefits and disadvantages of online peer-to-peer support by undertaking a content analysis of the spontaneous posts on BlueBoard, a well-established, moderated, online depression bulletin board. The research set comprised all posts on the board (n=3645) for each of 3 months selected at 4 monthly intervals over 2011. The data were analyzed using content analysis and multiple coders. A total of 586 relevant posts were identified, 453 (77.3%) reporting advantages and 133 (22.7%) reporting disadvantages. Positive personal change (335/453, 74.0%) and valued social interactions and support (296/453, 65.3%) emerged as perceived advantages. Other identified benefits were valued opportunities to disclose/express feelings or views (29/453, 6.4%) and advantages of the BlueBoard environment (45/453, 9.9%). Disadvantages were negative personal change (50/133, 37.6%), perceived disadvantages of board rules/moderation (42/133, 31.6%), unhelpful social interactions/contact with other members (40/133, 30.1%), and technical obstacles to using the board (14/133, 10.5%). Consumers value the opportunity to participate in an online mutual support group for mental health concerns. Further research is required to better understand how and if these perceived advantages translate into positive outcomes for consumers, and whether the perceived disadvantages of such boards can be addressed without compromising the safety and positive outcomes of the board.

  8. [Adaptation of a peer pressure scale in French and German: the Peer Pressure Inventory].

    Science.gov (United States)

    Baggio, S; Studer, J; Daeppen, J-B; Gmel, G

    2013-06-01

    Peer pressure is regarded as an important determinant of substance use, sexual behavior and juvenile delinquency. However, few peer pressure scales are validated, especially in French or German. Little is known about the factor structure of such scales or the kind of scale needed: some scales takes into account both peer pressure to do and peer pressure not to do, while others consider only peer pressure to do. The aim of the present study was to adapt French and German versions of the Peer Pressure Inventory, which is one of the most widely used scales in this field. We considered its factor structure and concurrent validity. Five thousand eight hundred and sixty-seven young Swiss men filled in a questionnaire on peer pressure, substance use, and other variables (conformity, involvement) in a cohort study. We identified a four-factor structure, with the three factors of the initial Peer Pressure Inventory (involvement, conformity, misconduct) and adding a new one (relationship with girls). A non-valued scale (from no peer pressure to peer pressure to do only) showed stronger psychometric qualities than a valued scale (from peer pressure not to do to peer pressure to do). Concurrent validity was also good. Each behavior or attitude was significantly associated with peer pressure. Peer pressure seems to be a multidimensional concept. In this study, peer pressure to do showed the strongest influence on participants. Indeed, peer pressure not to do did not add anything useful. Only peer pressure to do affected young Swiss men's behaviors and attitudes and was reliable. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  9. A Social Media Peer Group for Mothers To Prevent Obesity from Infancy: The Grow2Gether Randomized Trial.

    Science.gov (United States)

    Fiks, Alexander G; Gruver, Rachel S; Bishop-Gilyard, Chanelle T; Shults, Justine; Virudachalam, Senbagam; Suh, Andrew W; Gerdes, Marsha; Kalra, Gurpreet K; DeRusso, Patricia A; Lieberman, Alexandra; Weng, Daniel; Elovitz, Michal A; Berkowitz, Robert I; Power, Thomas J

    2017-10-01

    Few studies have addressed obesity prevention among low-income families whose infants are at increased obesity risk. We tested a Facebook peer-group intervention for low-income mothers to foster behaviors promoting healthy infant growth. In this randomized controlled trial, 87 pregnant women (Medicaid insured, BMI ≥25 kg/m 2 ) were randomized to the Grow2Gether intervention or text message appointment reminders. Grow2Gether participants joined a private Facebook group of 9-13 women from 2 months before delivery until infant age 9 months. A psychologist facilitated groups featuring a curriculum of weekly videos addressing feeding, sleep, parenting, and maternal well-being. Feasibility was assessed using the frequency and content of participation, and acceptability using surveys. Maternal beliefs and behaviors and infant growth were assessed at birth, 2, 4, 6, and 9 months. Differences in infant growth between study arms were explored. We conducted intention-to-treat analyses using quasi-least-squares regression. Eighty-eight percent (75/85) of intervention participants (42% (36/85) food insecure, 88% (75/85) black) reported the group was helpful. Participants posted 30 times/group/week on average. At 9 months, the intervention group had significant improvement in feeding behaviors (Infant Feeding Style Questionnaire) compared to the control group (p = 0.01, effect size = 0.45). Intervention group mothers were significantly less likely to pressure infants to finish food and, at age 6 months, give cereal in the bottle. Differences were not observed for other outcomes, including maternal feeding beliefs or infant weight-for-length. A social media peer-group intervention was engaging and significantly impacted certain feeding behaviors in families with infants at high risk of obesity.

  10. A comparison of well-peer mentored and non-peer mentored athletes' perceptions of satisfaction.

    Science.gov (United States)

    Hoffmann, Matt D; Loughead, Todd M

    2016-01-01

    The purpose of the present study was to compare well-peer mentored and non-peer mentored athletes' perceptions of satisfaction. A total of 444 intercollegiate athletes (272 well-peer mentored and 172 non-peer mentored) from a variety of sport teams participated in the study. Athletes from both well-peer mentored and non-peer mentored groups reported their satisfaction levels using the Athlete Satisfaction Questionnaire. The results of a MANOVA and follow-up post hoc ANOVAs showed that well-peer mentored athletes were significantly more satisfied than their non-peer mentored counterparts in terms of individual performance, personal dedication, team task contribution, team social contribution, team integration, ethics, ability utilisation and training and instruction. Overall, the findings suggest that athletes who are well-peer mentored by a teammate perceive higher satisfaction levels with various aspects of their athletic experience than athletes who are not peer mentored by a teammate. Given these positive findings, practitioners (i.e., coaches, sport psychology consultants) should inform athletes on the benefits of peer-to-peer mentoring. The practical implications of the results and strategies to promote peer athlete mentoring relationships in sport are highlighted.

  11. An Efficient Causal Group Communication Protocol for Free Scale Peer-to-Peer Networks

    Directory of Open Access Journals (Sweden)

    Grigory Evropeytsev

    2016-08-01

    Full Text Available In peer-to-peer (P2P overlay networks, a group of n (≥2 peer processes have to cooperate with each other. Each peer sends messages to every peer and receives messages from every peer in a group. In group communications, each message sent by a peer is required to be causally delivered to every peer. Most of the protocols designed to ensure causal message order are designed for networks with a plain architecture. These protocols can be adapted to use in free scale and hierarchical topologies; however, the amount of control information is O(n, where n is the number of peers in the system. Some protocols are designed for a free scale or hierarchical networks, but in general they force the whole system to accomplish the same order viewed by a super peer. In this paper, we present a protocol that is specifically designed to work with a free scale peer-to-peer network. By using the information about the network’s architecture and by representing message dependencies on a bit level, the proposed protocol ensures causal message ordering without enforcing super peers order. The designed protocol is simulated and compared with the Immediate Dependency Relation and the Dependency Sequences protocols to show its lower overhead.

  12. Analysis and Implementation of Gossip-Based P2P Streaming with Distributed Incentive Mechanisms for Peer Cooperation

    Directory of Open Access Journals (Sweden)

    Sachin Agarwal

    2007-10-01

    Full Text Available Peer-to-peer (P2P systems are becoming a popular means of streaming audio and video content but they are prone to bandwidth starvation if selfish peers do not contribute bandwidth to other peers. We prove that an incentive mechanism can be created for a live streaming P2P protocol while preserving the asymptotic properties of randomized gossip-based streaming. In order to show the utility of our result, we adapt a distributed incentive scheme from P2P file storage literature to the live streaming scenario. We provide simulation results that confirm the ability to achieve a constant download rate (in time, per peer that is needed for streaming applications on peers. The incentive scheme fairly differentiates peers' download rates according to the amount of useful bandwidth they contribute back to the P2P system, thus creating a powerful quality-of-service incentive for peers to contribute bandwidth to other peers. We propose a functional architecture and protocol format for a gossip-based streaming system with incentive mechanisms, and present evaluation data from a real implementation of a P2P streaming application.

  13. Mathematical theory of peer-instruction dynamics

    Directory of Open Access Journals (Sweden)

    Hideo Nitta

    2010-08-01

    Full Text Available A mathematical theory of peer instruction describing the increase of the normalized number of correct answers due to peer discussion is presented. A simple analytic expression is derived which agrees with class data. It is shown that our theory is connected to the mathematical learning models proposed by Pritchard et al. It is also shown that obtained theoretical lines are useful for analyzing peer-instruction efficiencies.

  14. 6. Home deliveries

    African Journals Online (AJOL)

    Sitwala

    determine factors associated with home deliveries. Main outcome ... deliver at home than a health facility compared to those who .... regression analysis, women who had four years of schooling or .... by report bias, the burden of home deliveries is a real challenge .... Journal of Econometrics 1987; 36: 185-204. 14. Michelo ...

  15. Global Delivery Models

    DEFF Research Database (Denmark)

    Manning, Stephan; Larsen, Marcus M.; Bharati, Pratyush

    2013-01-01

    This article examines antecedents and performance implications of global delivery models (GDMs) in global business services. GDMs require geographically distributed operations to exploit both proximity to clients and time-zone spread for efficient service delivery. We propose and empirically show...

  16. Health care delivery systems.

    NARCIS (Netherlands)

    Stevens, F.; Zee, J. van der

    2007-01-01

    A health care delivery system is the organized response of a society to the health problems of its inhabitants. Societies choose from alternative health care delivery models and, in doing so, they organize and set goals and priorities in such a way that the actions of different actors are effective,

  17. Global Delivery Models

    DEFF Research Database (Denmark)

    Manning, Stephan; Møller Larsen, Marcus; Bharati, Pratyush

    -zone spread allowing for 24/7 service delivery and access to resources. Based on comprehensive data we show that providers are likely to establish GDM configurations when clients value access to globally distributed talent pools and speed of service delivery, and in particular when services are highly...

  18. Characteristics of peer violence in schools

    Directory of Open Access Journals (Sweden)

    Sinobad Sandra

    2005-01-01

    Full Text Available In this paper the author analyses types and main characteristics of peer violence in schools as well as forms of their manifestation. The analysis refers to data about the prevalence of peer violence in schools in Serbia, and in particular to forms of peer violence within our country as well as in the world. The part of the text refers to characteristics of perpetrators and their victims as well as on consequences that spring up from long term exposure to violence. Finally, the article has been pointed out an importance of introducing intervention programs in schools, by which use peer violence could be significantly decreased.

  19. Advantages and limitations of peer assessment

    Directory of Open Access Journals (Sweden)

    Karmen Goršak, Karmen Pižorn

    2010-12-01

    Full Text Available This article examines current theoretical work and research findings regarding the effectiveness of peer assessment. The main purpose of the article is to define peer asses sment and its subcategory peer feedback and to present the advantages and limitations of peer assessment derived from different research findings. In addition, conditions and strategies to successfully guarantee the benefits of peer assessment are presented. The main research studies, mentioned in this article, have been carried out in different disciplines in higher education programmes and their findings reveal positive students’ and teachers’ attitude to peer assessment as well as high correlation between peers’ and te achers’ grades. The main results of the studies show a positive effect of peer assessment on student’s active role in the process of learning and assessment, the development of social and professional skills, student’s autonomy, critical thinking, peer and selfassessment skills. Recommendations for implementing peer assessment within foreign language tea ching, as well as implications for future research work are provided.

  20. The Biosphere International Peer Review

    International Nuclear Information System (INIS)

    Van Luik, Abraham

    2002-01-01

    Abe van Luik (US DOE- YM, USA), ended the presentation by giving feedback from the IAEA peer review on the biosphere modelling strategy developed by the DOE Yucca Mountain Site Characterisation Office (YMSCO). This review was based on available international standards and guidance. The peer review team was constituted of both experts from regulatory and waste management organisations and national advisory committees. The implementation of the review consisted of an examination of biosphere reports mainly regarding the modelling and question and answer exchanges. The final report was submitted in April 2000. It contained twenty-three recommendations within two broad classifications; one concerning the regulatory framework, the other one regarding the framework to increase stakeholders' confidence in modelling. The three main categories of recommendations were outlined, namely (i) the DOE' s Biosphere assessment Approach, (ii) the definition of the biosphere system, and (iii) the model development, data and results. Regarding in particular the treatment of the uncertainties in the biosphere, it was viewed as a key issue during the review and thus it will be re-evaluated in the future performance assessment. The summary highlighted most of the recommendations received are to be acted on, and are to be included in the License Application plan for biosphere modelling

  1. A Local Scalable Distributed Expectation Maximization Algorithm for Large Peer-to-Peer Networks

    Data.gov (United States)

    National Aeronautics and Space Administration — This paper describes a local and distributed expectation maximization algorithm for learning parameters of Gaussian mixture models (GMM) in large peer-to-peer (P2P)...

  2. 2012 national state safety engineers and traffic engineers peer-to-peer workshop.

    Science.gov (United States)

    2013-11-01

    The Illinois Department of Transportation (IDOT) and the Illinois Center for Transportation (ICT) sponsored and hosted the : 2012 National State Safety Engineers and Traffic Engineers Peer-to-Peer Workshop on November 14 and 15, 2012, at the : Hyatt ...

  3. ENcentive: A Framework for Intelligent Marketing in Mobile Peer-To-Peer Environments

    National Research Council Canada - National Science Library

    Ratsimor, Olga; Finin, Tim; Joshi, Anupam; Yesha, Yelena

    2005-01-01

    .... eNcentive facilitates peer-to-peer electronic marketing in mobile ad hoc environments. Our framework employs an intelligent marketing scheme, by providing users the capability to collect information like sales promotions and discounts...

  4. A digital peer-to-peer learning platform for clinical skills development.

    Directory of Open Access Journals (Sweden)

    Jesse Paul Basnak

    2017-02-01

    Conclusion: Students found the practice OSCEs and digital platform effective for learning clinical skills. Thus, peer-to-peer learning and computer automation can be useful adjuncts to traditional medical curricula.

  5. Local Road Safety Peer Exchange - Region 9 : An RSPCB Peer Exchange

    Science.gov (United States)

    2013-09-01

    This report provides a summary of the proceedings of the Region 9 Local Road Safety Peer : Exchange held in Sacramento, California on September 17 and 18, 2013. The Federal Highway : Administration (FHWA) Office of Safety (HSA) sponsored the peer exc...

  6. Minnesota Peer Exchange : Strategic Highway Safety Plan (SHSP) Implementation - An RSPCB Peer Exchange

    Science.gov (United States)

    2015-02-01

    The Minnesota Department of Transportation (MN DOT) hosted a peer exchange February 3-4, 2015, in St. Paul, Minnesota. The event included peer representatives from the Nevada Department of Transportation (NV DOT), the Ohio Department of Transportatio...

  7. Kentucky Peer Exchange : Strategic Highway Safety Plans (SHSPs) - An RSPCB Peer Exchange

    Science.gov (United States)

    2015-06-01

    This report summarizes a peer exchange hosted by the Kentucky Transportation Cabinet (KYTC) and the Kentucky Office of Highway Safety (KOHS) on June 16-17, 2015, in Frankfort, KY. The event included peer representatives from the Georgia Department of...

  8. A Local Asynchronous Distributed Privacy Preserving Feature Selection Algorithm for Large Peer-to-Peer Networks

    Data.gov (United States)

    National Aeronautics and Space Administration — In this paper we develop a local distributed privacy preserving algorithm for feature selection in a large peer-to-peer environment. Feature selection is often used...

  9. Peer-Allocated Instant Response (PAIR): Computional allocation of peer tutors in learning communities

    NARCIS (Netherlands)

    Westera, Wim

    2009-01-01

    Westera, W. (2007). Peer-Allocated Instant Response (PAIR): Computational allocation of peer tutors in learning communities. Journal of Artificial Societies and Social Simulation, http://jasss.soc.surrey.ac.uk/10/2/5.html

  10. Client-side Web Mining for Community Formation in Peer-to-Peer Environments

    Data.gov (United States)

    National Aeronautics and Space Administration — In this paper we present a framework for forming interests-based Peer-to-Peer communities using client-side web browsing history. At the heart of this framework is...

  11. A Model Of Critical Peer Feedback To Facilitate Business English Writing Using Qzone Weblogs Among Chinese Undergraduates

    Directory of Open Access Journals (Sweden)

    Gao Xianwei

    2016-10-01

    Full Text Available The purpose of this study was to explore critical thinking skills in peer feedback for Business English writing in order to facilitate the quality of peer feedback and quality of Business English writing. “Critical peer feedback” was conceptualized with the integration of “critical thinking” and “peer feedback” in order to improve the quality of peer feedback. This study explored the process, content and factors of critical peer feedback through Qzone weblogs, and summarized the model of critical peer feedback. A qualitative case study was conducted with a group of six junior students majoring in Business English for one semester in a Chinese university. Three models of critical thinking including Revised Bloom’s Taxonomy, Paul-Elder Model and Reichenbach’s Six Steps Model, were transferred to the participants in the workshops. Three kinds of data including semi-structured interview transcripts, six writing assignments and artifacts of critical peer feedback, were analyzed by QSR NVivo 8. The findings revealed that the Revised Bloom’s Taxonomy is more acceptable for the beginners of critical peer feedback which provides a six-step model of critical thinking. The process of critical peer feedback in online context was summarized as four steps- “intake”, “critical thinking”, “output”, and “post-output”. Each of the four steps had several mental processes in critical peer feedback. This study may be significant for the knowledge of higher-order peer feedback to facilitate the quality of higher-level writing.

  12. Online Peer-to-Peer Support for Young People With Mental Health Problems: A Systematic Review

    OpenAIRE

    Ali, Kathina; Farrer, Louise; Gulliver, Amelia; Griffiths, Kathleen M

    2015-01-01

    Background Adolescence and early adulthood are critical periods for the development of mental disorders. Online peer-to-peer communication is popular among young people and may improve mental health by providing social support. Previous systematic reviews have targeted Internet support groups for adults with mental health problems, including depression. However, there have been no systematic reviews examining the effectiveness of online peer-to-peer support in improving the mental health of a...

  13. The Tragedy of the Commons : Arms Race Within Peer-to-Peer Tools

    OpenAIRE

    Carlsson, Bengt

    2001-01-01

    The two major concerns about peer-to-peer are anonymity and non-censorship of documents. Music industry has highlighted these questions by forcing Napster to filter out copyright protected MP3 files and taking legal actions against local users by monitoring their stored MP3 files. Our investigation shows that when copyright protected files are filtered out, users stop downloading public music as well. The success of a distributed peer-to-peer system is dependent on both cooperating coalitions...

  14. Author's rights in the digital age: how Internet and peer-to-peer file sharing technology shape the perception of copyrights and copywrongs

    Directory of Open Access Journals (Sweden)

    Milijana Micunovic

    2016-01-01

    Full Text Available Author's rights and copyright law have gone through quite a few changes in the 'post-print' culture of binary systems, digital formations and techno-practices. Technological development supports new concept of author's rights by promoting free internet and digital market, as well as new contemporary experience of culture that is being rooted in digital technology, mass communication and the world of multimedia and virtuality. Though computer and digital technology have served both authors and users in various ways, they have also served as a very fertile ground for sharing copyrighted content thus leading to numerous copyright infringements and conflicts with the copyright law. The aim of this paper is to identify and analyze the ways in which computer and digital technology have given rise to new trends in the production (e.g. remix culture and consumption (e.g. peer-to-peer file sharing technology of culture, but also to determine how new forms of distribution, use and sharing of digital content changed and shaped the perception of authorship in the 21st century. In order to analyze the dynamic, nature and structure by which new digital and networking technologies are affecting the concept of authorship and author's rights and to test the consistency of previously established hypotheses, we conducted a survey amongst general public. Altogether 535 questionnaires were completed. Data was analyzed using SPSS tool and quantitative method of analysis. In the analysis special attention was given to both, the concept of authorship in the digital environment and the concept of peer-to-peer file sharing technology as not so new, but still very popular networked architecture for distributing, using and sharing digital content. Results have shown that most of the respondents use peer-to-peer file sharing technology to access, consume and/or share different cultural content (e.g. movies, music, books, etc. while violating the rights of copyright holders

  15. Positive Peer Support or Negative Peer Influence? the Role of Peers among Adolescents in Recovery High Schools

    Science.gov (United States)

    Karakos, Holly L.

    2014-01-01

    Evidence from previous research suggests that peers at times exert negative influence and at other times exert positive influence on drug and alcohol use among adolescents in recovery. This study explores recovery high school staff members' perceptions of peer support among students in recovery high schools using qualitative interview data. Themes…

  16. Peer, social media, and alcohol marketing influences on college student drinking.

    Science.gov (United States)

    Roberson, Angela A; McKinney, Cliff; Walker, Courtney; Coleman, Ashley

    2018-07-01

    To investigate how alcohol marketing and peers may promote college students' alcohol use through social media. College students (N = 682) aged 18 to 22 years from a large Southern university completed paper surveys in April 2014. Structural equation modeling was used to investigate relationships among variables as well as moderation by gender and race. Drinking behavior was directly related to perceived norms and attitudes toward alcohol that develop, in part, from direct and indirect interactions with their online and offline peers, as well as engagement with alcohol-related content on social media. Gender and ethnicity moderated some effects. College student drinking is influenced by friends' alcohol-related content posted on social networking sites and by greater engagement with traditional and online alcohol marketing. College campus alcohol misuse interventions should include components to counter peer influences and alcohol marketing on social media.

  17. Help Seeking among Peers: The Role of Goal Structure and Peer Climate

    Science.gov (United States)

    Shim, Sungok Serena; Kiefer, Sarah M.; Wang, Cen

    2013-01-01

    With a sample of 373 middle school students, the present longitudinal study examined the role of the classroom peer climate in mediating the relation between perceptions of classroom goal structures and academic help seeking among peers. Classroom goal structures were measured in the fall and classroom peer climate and help seeking among peers…

  18. The Role of Child Characteristics and Peer Experiences in the Development of Peer Cooperation

    NARCIS (Netherlands)

    Endedijk, Hinke M.; Cillessen, Antonius H. N.; Bekkering, Harold; Cox, R.F.A; Hunnius, Sabine

    Cooperation with peers is challenging for young children, and there are large individual differences in the development of cooperation. The roles of child characteristics and peer experiences for peer interaction during free play have been studied extensively, but it is unclear which factors predict

  19. Peer Assessment in the Digital Age: A Meta-Analysis Comparing Peer and Teacher Ratings

    Science.gov (United States)

    Li, Hongli; Xiong, Yao; Zang, Xiaojiao; Kornhaber, Mindy L.; Lyu, Youngsun; Chung, Kyung Sun; Suen, Hoi K.

    2016-01-01

    Given the wide use of peer assessment, especially in higher education, the relative accuracy of peer ratings compared to teacher ratings is a major concern for both educators and researchers. This concern has grown with the increase of peer assessment in digital platforms. In this meta-analysis, using a variance-known hierarchical linear modelling…

  20. Peer Teaching among Physical Therapy Students during Human Gross Anatomy: Perceptions of Peer Teachers and Students

    Science.gov (United States)

    Youdas, James W.; Hoffarth, Brianna L.; Kohlwey, Scott R.; Kramer, Christine M.; Petro, Jaime L.

    2008-01-01

    Despite nearly 200 accredited entry-level physical therapist education programs in the United States that culminate in a doctoral degree, only a paucity of reports have been published regarding the efficacy of peer teaching in gross anatomy. No one has described the usefulness of peer teaching from the viewpoint of the peer teacher. An organized…

  1. Designing student peer assessment in higher education: Analysis of written and oral peer feedback

    NARCIS (Netherlands)

    van den Berg, I.; Admiraal, W.; Pilot, A.

    2006-01-01

    Designing student peer assessment in higher education: analysis of written and oral peer feedback Relating it to design features, the present article describes the nature of written and oral peer feedback as it occurred in seven writing courses, each with a different PA design. Results indicate that

  2. System optimization for peer-to-peer multi hop video broadcasting in wireless ad hoc networks

    NARCIS (Netherlands)

    Dedeoglu, V.; Atici, C.; Salman, F.S.; Sunay, M.O.

    2008-01-01

    We consider peer-to-peer video broadcasting using cooperation among peers in an ad hoc wireless network. As opposed to the traditional single hop broadcasting, multiple hops cause an increase in broadcast video quality while creating interference and increasing transmission delay. We develop

  3. The Effects of Young Children's Affiliations with Prosocial Peers on Subsequent Emotionality in Peer Interactions

    Science.gov (United States)

    Fabes, Richard A.; Hanish, Laura D.; Martin, Carol Lynn; Moss, Alicia; Reesing, Amy

    2012-01-01

    Preschoolers' (60 boys and 64 girls, "M" age = 50.73 months) affiliations with prosocial peers were observed in naturally occurring interactions and then examined in relation to positive and negative emotionality within their peer interactions one semester later. Greater affiliation with prosocial peers in the fall was related to enhanced positive…

  4. Peer Learning in Social Media Enhanced Learning Environment

    Directory of Open Access Journals (Sweden)

    Anne-Maritta Tervakari

    2012-09-01

    Full Text Available TUT Circle, a dedicated social media service for students at Tampere University of Technology (TUT, was used as a learning environment for the purpose of enhancing students‘ collaboration, communication and networking skills required in business and working life and for promoting peer learning in small groups. Unfortunately, active conversation was limited. The students intensively read content created by other students, but they did not actively present their opinions, arguments or comments. Another reason for the lack of real conversation was procrastination. The students seemed to need more encouragement to comment on or question the ideas of others, more support to promote intergroup interaction and more assistance with time management.

  5. Developing future nurse educators through peer mentoring

    Directory of Open Access Journals (Sweden)

    Rosenau PA

    2015-01-01

    Full Text Available Patricia A Rosenau, Rita F Lisella, Tracey L Clancy, Lorelli S NowellFaculty of Nursing, University of Calgary, Calgary, AB, CanadaBackground: The nursing workforce and nursing education demographic trends reinforce the urgency to cultivate future nursing leaders, educators, and mentors. The changing realities of health care environments, involving crowded student placements, overtaxed clinical mentors and preceptors, and inexperienced staff, hamper student learning and professional development. Peer mentoring has been used successfully in nursing education to enhance student engagement and the quality of the student learning experience. Although various terms like peer mentor have been used to describe the role of senior students facilitating junior student learning, the literature is silent about how peer mentoring fosters the development of future nursing education leaders.Objectives: The aim of this study was to understand how peer mentorship fosters the development of nursing education leadership in senior undergraduate nursing students enrolled in an elective undergraduate peer-mentoring credit course, Introductory Concepts in Nursing Education and Leadership Through Peer-Led Learning.Design and method: This phenomenological study explored the development of nursing education leadership in senior undergraduate students through the analysis of critical reflections of individual senior students and online discussions between triads of senior students teaching/learning across diverse junior-level theory and practice courses.Participants: Seventeen senior undergraduate nursing students enrolled in the elective course participated in the study.Results: From the critical reflections and online discussions, four themes emerged: "developing teaching philosophies and pedagogies", "learning teaching strategies", "supportive peer relationship", and "benefits of the peer mentorship program".Conclusion: The creation and promotion of peer leadership

  6. Medical faculty opinions of peer tutoring.

    Science.gov (United States)

    Rudland, Joy R; Rennie, Sarah C

    2014-01-01

    Peer tutoring is a well-researched and established method of learning defined as 'a medical student facilitating the learning of another medical student'. While it has been adopted in many medical schools, other schools may be reluctant to embrace this approach. The attitude of the teaching staff, responsible for organizing and or teaching students in an undergraduate medical course to formal peer teaching will affect how it is introduced and operationalized. This study elicits faculty opinions on how best to introduce peer tutoring for medical students. Structured telephone interviews were recorded, transcribed and analyzed using thematic analysis. The interviews were with medically qualified staff responsible for organizing or teaching undergraduate medical students at a New Zealand medical school. Six questions were posed regarding perceived advantages and disadvantages of peer tutoring and how the school and staff could support a peer-tutoring scheme if one was introduced. Staff generally supported the peer tutoring concept, offering a safe environment for learning with its teachers being so close in career stage to the learners. They also say disadvantages when the student-teachers imparted wrong information and when schools used peer tutoring to justify a reduction in teaching staff. Subjects felt that faculty would be more accepting of peer tutoring if efforts were made to build staff 'buy in' and empowerment, train peer tutors and introduce a solid evaluation process. Staff of our school expressed some concerns about peer tutoring that are not supported in the literature, signaling a need for better communication about the benefits and disadvantages of peer tutoring.

  7. Adolescent personality factors in self-ratings and peer nominations and their prediction of peer acceptance and peer rejection.

    Science.gov (United States)

    Scholte, R H; van Aken, M A; van Lieshout, C F

    1997-12-01

    In this study, the robustness of the Big Five personality factors in adolescents' self-ratings and peer nominations was investigated. Data were obtained on 2,001 adolescents attending secondary school (885 girls; 1,116 boys; M age = 14.5 years). Exploratory and confirmatory factor analyses on the self-ratings confirmed the Big Five personality factors. In contrast, exploratory analysis on the peer nominations revealed five different factors: Aggression-Inattentiveness, Achievement-Withdrawal, Self-Confidence, Sociability, and Emotionality-Nervousness. It is suggested that peers evaluate group members not in terms of their personality but in terms of their group reputation. Peer evaluations contributed substantially to the prediction of peer acceptance and rejection; the Big Five personality factors based on self-ratings did not.

  8. "Peer Pressure" and the Group Process: Building Cultures of Concern

    Science.gov (United States)

    Tate, Thomas F.; Copas, Randall L.

    2010-01-01

    Peer group treatment has been subject to two main lines of criticism. Some suggest any program which aggregates antisocial youth inevitably fosters negative peer influence. Others are concerned that certain peer programs are based on coercive peer confrontation. Positive Peer Culture [PPC] is an antidote to both of these varieties of toxic group…

  9. Psychopathic Traits Moderate Peer Influence on Adolescent Delinquency

    Science.gov (United States)

    Kerr, Margaret; Van Zalk, Maarten; Stattin, Hakan

    2012-01-01

    Background: Peer influence on adolescent delinquency is well established, but little is known about moderators of peer influence. In this study, we examined adolescents' (targets) and their peers' psychopathic personality traits as moderators of peer influence on delinquency in peer networks. We used three separate dimensions of the psychopathic…

  10. What Is a Cesarean Delivery?

    Science.gov (United States)

    ... Twitter Pinterest Email Print What is a cesarean delivery? A cesarean delivery is a surgical procedure in which a fetus ... 32.2% of U.S. births were by cesarean delivery. 2 The CDC also found that the number ...

  11. Counteracting the Influence of Peer Smoking on YouTube.

    Science.gov (United States)

    Romer, Daniel; Jamieson, Patrick E; Jamieson, Kathleen Hall; Jones, Christopher; Sherr, Susan

    2017-04-01

    YouTube, a popular online site for user-generated content, is emerging as a powerful source of peer modeling of smoking. Previous research suggests that in counteracting such influence, health messages may inadvertently increase the perceived prevalence of drug use (a descriptive norm) without reducing its acceptability (injunctive norm). This research tested the ability of health messages to reduce the social acceptability of peer smoking on YouTube despite enhancing its perceived prevalence. In an online experiment with 999 adolescents, participants were randomly assigned to view one of two videos: (a) a mosaic displaying a variety of YouTube videos of adolescents smoking followed by a message about the mortality risk to those smokers, or (b) a control video on a health topic unrelated to smoking. Although exposure to the adolescent YouTube smokers increased perceived prevalence among some participants, it simultaneously increased beliefs about smoking's adverse health outcomes and negative attitudes toward smoking, effects that were associated with reductions in injunctive norms of social acceptability. Interventions that communicate the severity and scope of health risks associated with smoking may undercut the descriptive normative effects of peer modeling of smoking on social media sites such as YouTube.

  12. ASSESSING STUDENT PERFORMANCE ON INTERPRETING THROUGH PEER-ASSESSMENT

    Directory of Open Access Journals (Sweden)

    Titik Ismailia

    2017-12-01

    Full Text Available As a part of translation interpreting is translating spoken discourse orally. It needs some requirements like ability to speak clearly, clarity, fluency, eye contact, and self-confidence. It also needs linguistic proficiency, analytical skill, listening and recall, interpersonal skills, ethical behaviour, speaking skills, cultural knowledge, and subject knowledge. Evaluating students performance on interpreting can be done through peer assessment. Peer- assessment is one of alternative assessment to grade the peers in group or individuals by commenting on and judging other students work. To do this process there is a join work between listening and speaking, and two students. The first student as a speaker and the second student as an interpreter. Both of them should do the same quality on speak clearly as a speaker and as an interpreter should able to listen and translating the spoken discourse orally. Evaluation can use analytical grade that allows teacher to set clear criteria for correction like fluency, grammar, terminology, general content, and mechanics. Students and teacher can give comment on every criteria based on their own competency. During the process on making criteria, students and teacher can discuss and give reasonable suggestion to make the assessment suitable to the students competency. At the end, a rubric of assessment with the score from 0 to 100 and criteria and also the comment included in the paper of assessment.

  13. Non-Spherical Microcapsules for Increased Core Content Volume Delivery

    Science.gov (United States)

    Oliva-Buisson, Yvette J.

    2014-01-01

    The goal of this project was to advance microencapsulation from the standard spherical microcapsule to a non-spherical, high-aspect ratio (HAR), elongated microcapsule. This was to be accomplished by developing reproducible methods of synthesizing or fabricating robust, non-spherical, HAR microcapsules. An additional goal of this project was to develop the techniques to the point where scale-up of these methods could be examined. Additionally, this project investigated ways to apply the microencapsulation techniques developed as part of this project to self-healing formulations.

  14. Student-Generated Content: Enhancing Learning through Sharing Multiple-Choice Questions

    Science.gov (United States)

    Hardy, Judy; Bates, Simon P.; Casey, Morag M.; Galloway, Kyle W.; Galloway, Ross K.; Kay, Alison E.; Kirsop, Peter; McQueen, Heather A.

    2014-01-01

    The relationship between students' use of PeerWise, an online tool that facilitates peer learning through student-generated content in the form of multiple-choice questions (MCQs), and achievement, as measured by their performance in the end-of-module examinations, was investigated in 5 large early-years science modules (in physics, chemistry and…

  15. A CONSTRUCTIVIST APPROACH TO THE DESIGN AND DELIVERY OF AN ONLINE PROFESSIONAL DEVELOPMENT COURSE: A CASE OF THE iEARN ONLINE COURSE

    Directory of Open Access Journals (Sweden)

    Lockias Chitanana

    2012-01-01

    Full Text Available This study examined the International Education and Resource Network Science Technology and Math (iEARN-STM online professional development course. The study used the constructivist framework as the conceptual model to examine the way in which the constructivist theory has shaped the design and implementation of the course, as reflected by the interactions of a cohort of participants in the course. The participants were 28 educators enrolled in the course, who were either teacher educators or teachers, working in different educational institutions in different countries throughout the world. The purpose of the study was to understand how the iEARN online professional development course supported teachers’ learning through effective discourse in an online environment and to identify the constructivist learning principles that were behind the success of the course. The design of the course appeared to have a positive impact on participants’ collaboration with peers. Results of the study confirms earlier research findings that the constructivist approach to course design and delivery provides a powerful structure for creating learning environments conducive to the development of professional skills among educators. Results of this study can be used to assist professional development coordinators and administrators to plan effective professional development. The results of the study are also expected to contribute to improvements in the design of professional development course content, instruction, delivery and administration, focusing on factors such as program model, delivery, contextual factors or best practices.

  16. Sustained subconjunctival protein delivery using a thermosetting gel delivery system.

    Science.gov (United States)

    Rieke, Erin R; Amaral, Juan; Becerra, S Patricia; Lutz, Robert J

    2010-02-01

    An effective treatment modality for posterior eye diseases would provide prolonged delivery of therapeutic agents, including macromolecules, to eye tissues using a safe and minimally invasive method. The goal of this study was to assess the ability of a thermosetting gel to deliver a fluorescently labeled protein, Alexa 647 ovalbumin, to the choroid and retina of rats following a single subconjunctival injection of the gel. Additional experiments were performed to compare in vitro to in vivo ovalbumin release rates from the gel. The ovalbumin content of the eye tissues was monitored by spectrophotometric assays of tissue extracts of Alexa 647 ovalbumin from dissected sclera, choroid, and retina at time points ranging from 2 h to 14 days. At the same time points, fluorescence microscopy images of tissue samples were also obtained. Measurement of intact ovalbumin was verified by LDS-PAGE analysis of the tissue extract solutions. In vitro release of Alexa 488 ovalbumin into 37 degrees C PBS solutions from ovalbumin-loaded gel pellets was also monitored over time by spectrophotometric assay. In vivo ovalbumin release rates were determined by measurement of residual ovalbumin extracted from gel pellets removed from rat eyes at various time intervals. Our results indicate that ovalbumin concentrations can be maintained at measurable levels in the sclera, choroid, and retina of rats for up to 14 days using the thermosetting gel delivery system. The concentration of ovalbumin exhibited a gradient that decreased from sclera to choroid and to retina. The in vitro release rate profiles were similar to the in vivo release profiles. Our findings suggest that the thermosetting gel system may be a feasible method for safe and convenient sustained delivery of proteins to choroidal and retinal tissue in the posterior segments of the eye.

  17. TRANSDERMAL DRUG DELIVERY SYSTEM: REVIEW

    OpenAIRE

    Vishvakarama Prabhakar; Agarwal Shivendra; Sharma Ritika; Saurabh Sharma

    2012-01-01

    Various new technologies have been developed for the transdermal delivery of some important drugs. Today about 74% of drugs are taken orally and are found not to be as effective as desired. To improve such characters transdermal drug delivery system was emerged. Drug delivery through the skin to achieve a systemic effect of a drug is commonly known as transdermal drug delivery and differs from traditional topical drug delivery. Transdermal drug delivery systems (TDDS) are dosage forms involve...

  18. Students' Informal Peer Feedback Networks

    Science.gov (United States)

    Headington, Rita

    2018-01-01

    The nature and significance of students' informal peer feedback networks is an under-explored area. This paper offers the findings of a longitudinal investigation of the informal peer feedback networks of a cohort of student teachers [n = 105] across the three years of a UK primary education degree programme. It tracked the dynamic nature of these…

  19. The Problem of Humiliation in Peer Review

    Science.gov (United States)

    Comer, Debra R.; Schwartz, Michael

    2014-01-01

    This paper examines the problem of vituperative feedback from peer reviewers. We argue that such feedback is morally unacceptable, insofar as it humiliates authors and damages their dignity. We draw from social-psychological research to explore those aspects of the peer-review process in general and the anonymity of blind reviewing in particular…

  20. Understanding Peer Review of Scientific Research

    Science.gov (United States)

    Association of American Universities, 2011

    2011-01-01

    An important factor in the success of America's national research system is that federal funds for university-based research are awarded primarily through peer review, which uses panels of scientific experts, or "peers," to evaluate the quality of grant proposals. In this competitive process, proposals compete for resources based on their…

  1. Peer Tutoring: A Training and Facilitation Guide

    Science.gov (United States)

    Pirini, Jesse

    2017-01-01

    Students can make huge gains in academic grades and confidence with the help of peer tutoring. This book provides practical, research-based strategies for anyone wanting to run a peer tutoring programme or to improve their own tutoring practice. The book focuses on two key components of tutoring: the tutoring relationship and tutoring tools. The…

  2. College Students' Attitudes toward Their ADHD Peers

    Science.gov (United States)

    Chew, Brandi L.; Jensen, Scott A.; Rosen, Lee A.

    2009-01-01

    Objective: The attitudes of college students with and without ADHD toward peers with ADHD were examined. Method: A total of 196 college students (30 diagnosed with ADHD) anonymously completed four attitude measures. General analyses of attitudes toward peers with ADHD as well as comparisons between those with and without ADHD are made. Results:…

  3. Responding to Children Victimized by Their Peers

    Science.gov (United States)

    Nickerson, Amanda B.; Brock, Stephen E.; Chang, Yiping; O'Malley, Meagan D.

    2006-01-01

    Because victimization results from the dynamic interplay between the victim and his or her parents, peers, and teachers, responding to this problem should involve both direct and indirect interventions. This paper describes and reviews empirically supported direct interventions with victims, as well as indirect interventions with parents, peers,…

  4. Peer/Self Assessment and Student Learning

    Science.gov (United States)

    Ndoye, Abdou

    2017-01-01

    Effective and durable learning achievements can result from students' engagement in their own learning. This study explored students' perceptions of the mechanisms and processes through which peer and self-assessment can contribute to their learning. More specifically, the study investigated students' perceived ways in which peer and…

  5. Effect of Peer Mentors on Academic Performance

    Science.gov (United States)

    Bonin, Elizabeth

    2016-01-01

    Undergraduate peer mentoring programs strive to retain students who solve their own problems, develop options, unravel obstacles, and establish a process of figuring out solutions. A crucial component of obtaining that goal is to effectively train peer mentors to serve as advocates to freshman undergraduate students. Terrion and Philion (2008)…

  6. Peer Mentors Can Improve Academic Performance

    Science.gov (United States)

    Asgari, Shaki; Carter, Frederick, Jr.

    2016-01-01

    The present study examined the relationship between peer mentoring and academic performance. Students from two introductory psychology classes either received (n = 37) or did not receive (n = 36) peer mentoring. The data indicated a consistent improvement in the performance (i.e., grades on scheduled exams) of the mentored group. A similar pattern…

  7. Positive Peer Culture with German Youth

    Science.gov (United States)

    Steinebach, Christoph; Steinebach, Ursula

    2009-01-01

    Children and youth develop the ability to surmount difficult life challenges through a combination of external supports and internal strengths. Positive peers can contribute substantially to growth in resilient coping and problem-solving skills. Positive Peer Culture (PPC) programs are designed to strengthen supportive social bonds, competence,…

  8. University students' attitudes towards peer assessment and ...

    African Journals Online (AJOL)

    On the whole, the findings show that students were happy to peer assess but not so much to be peer assessed. Also, half of the participants estimated that their assessments did not match those to be expected by their course instructor even if the same assessment criteria were to be used. Some recommendations are ...

  9. Age Differences in Resistance to Peer Influence

    Science.gov (United States)

    Steinberg, Laurence; Monahan, Kathryn C.

    2007-01-01

    Prior research describes the development of susceptibility to peer pressure in adolescence as following an inverted U-shaped curve, increasing during early adolescence, peaking around age 14, and declining thereafter. This pattern, however, is derived mainly from studies that specifically examined peer pressure to engage in antisocial behavior. In…

  10. Conformity to Peer Pressure in Preschool Children

    Science.gov (United States)

    Haun, Daniel B. M.; Tomasello, Michael

    2011-01-01

    Both adults and adolescents often conform their behavior and opinions to peer groups, even when they themselves know better. The current study investigated this phenomenon in 24 groups of 4 children between 4;2 and 4;9 years of age. Children often made their judgments conform to those of 3 peers, who had made obviously erroneous but unanimous…

  11. Opposites Detract: Middle School Peer Group Antipathies

    Science.gov (United States)

    Laursen, Brett; Bukowski, William M.; Nurmi, Jari-Eri; Marion, Donna; Salmela-Aro, Katariina; Kiuru, Noona

    2010-01-01

    This study examines variability in patterns of peer group antipathy. Same-grade adolescent peer groups were identified from sociometric nominations of preferred affiliates in a community sample of 600 Finnish ninth-grade middle school students (mean age = 15.0 years). Hierarchical linear modeling determined characteristics of youths in actor…

  12. Peer Helpers: Encouraging Kids to Confide.

    Science.gov (United States)

    Tanaka, Gail; Reid, Kelley

    1997-01-01

    In peer-helping programs, a professional counselor or teacher trains a group of students who then help other students by listening, providing information, and referring them to others with the necessary expertise. Peer helpers can help improve the school climate by contributing to its health and security. Since 1979, Seattle's Natural Helpers…

  13. Item Response Theory for Peer Assessment

    Science.gov (United States)

    Uto, Masaki; Ueno, Maomi

    2016-01-01

    As an assessment method based on a constructivist approach, peer assessment has become popular in recent years. However, in peer assessment, a problem remains that reliability depends on the rater characteristics. For this reason, some item response models that incorporate rater parameters have been proposed. Those models are expected to improve…

  14. Reducing Peer Sexual Harassment in Schools

    Science.gov (United States)

    Eckes, Suzanne

    2006-01-01

    Studies have indicated that as many as 80% of students experience some form of sexual harassment in public schools. Such statistics are troublesome, considering that peer sexual harassment can have long-term psychological effects on student victims. Public schools have a responsibility to provide a safe educational environment free of peer sexual…

  15. Perceived Benefits of Human Sexuality Peer Facilitators

    Science.gov (United States)

    Butler, Scott M.; Hartzell, Rose M.; Sherwood, Catherine M.

    2008-01-01

    Peer education, facilitation, and counseling programs are commonly utilized in primary and secondary prevention programs within colleges and universities. In addition, peer-based human sexuality discussions have been used as an adjunct to traditional human sexuality pedagogic programs over the last 20 years. Whereas ample evidence suggests that…

  16. Peer Observation of Teaching: A Decoupled Process

    Science.gov (United States)

    Chamberlain, John Martyn; D'Artrey, Meriel; Rowe, Deborah-Anne

    2011-01-01

    This article details the findings of research into the academic teaching staff experience of peer observation of their teaching practice. Peer observation is commonly used as a tool to enhance a teacher's continuing professional development. Research participants acknowledged its ability to help develop their teaching practice, but they also…

  17. Teaching peers to talk to peers: the time has come for science to create a respectable, full-time career track for "peer-peer communication teachers".

    Science.gov (United States)

    Rodríguez, Armando Chapin

    2012-11-01

    Scientists should learn to communicate effectively with their colleagues through long-term, sustained training instead of ad hoc, one-off "interventions" that may or may not occur during graduate school or postdoctoral work. Since such training may place unreasonable demands on research advisors, institutions should create career opportunities for "peer-peer communication teachers." Copyright © 2012 WILEY Periodicals, Inc.

  18. Peer Learning for Change in Higher Education

    Science.gov (United States)

    Hilsdon, John

    2014-01-01

    This paper draws upon small scale, qualitative research at a UK university to present a Learning Development (LD) perspective on peer learning. This approach is offered as a lens for exploring social aspects of learning, cultural change in higher education and implications for pedagogy and policy. Views of a small group of peer learning leaders…

  19. Peer Involvement in Adolescent Dating Violence

    Science.gov (United States)

    Stephenson, Pam S.; Martsolf, Donna; Draucker, Claire Burke

    2013-01-01

    This study investigated the ways in which peers are involved in adolescent dating violence. Eighty-eight young adults aged 18-21 were interviewed and asked to reflect on aggressive dating relationships they experienced as teens. The researchers used grounded theory to analyze the data. Findings showed that male and female peers were involved in…

  20. Peer Assessment in Engineering Group Projects

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    2014-01-01

    Peer review has proved to be beneficial in project-based environments by involving students in the process and encouraging them to take ownership of their learning. This article reviews how peer assessment has been employed within group work for different engineering programs. Since the administr...

  1. PeerMatcher: Decentralized Partnership Formation

    NARCIS (Netherlands)

    Bozdog, N.V.; Voulgaris, S.; Bal, H.E.; van Halteren, A.

    2015-01-01

    This paper presents PeerMatcher, a fully decentralized algorithm solving the k-clique matching problem. The aim of k-clique matching is to cluster a set of nodes having pairwise weights into k-size groups of maximal total weight. Since solving the problem requires exponential time, PeerMatcher

  2. Peer Learning in Specialist Higher Music Education

    Science.gov (United States)

    Hanken, Ingrid Maria

    2016-01-01

    Research on peer learning in higher education indicates that learning from and together with peers can benefit students in a number of ways. Within higher music education in Western, classical music, however, the master-apprentice tradition with its dominant one-to-one mode of tuition focuses predominantly on knowledge transmission from teacher to…

  3. Ontology-Based Peer Exchange Network (OPEN)

    Science.gov (United States)

    Dong, Hui

    2010-01-01

    In current Peer-to-Peer networks, distributed and semantic free indexing is widely used by systems adopting "Distributed Hash Table" ("DHT") mechanisms. Although such systems typically solve a. user query rather fast in a deterministic way, they only support a very narrow search scheme, namely the exact hash key match. Furthermore, DHT systems put…

  4. Application of Calibrated Peer Review (CPR) Writing Assignments to Enhance Experiments with an Environmental Chemistry Focus

    Science.gov (United States)

    Margerum, Lawrence D.; Gulsrud, Maren; Manlapez, Ronald; Rebong, Rachelle; Love, Austin

    2007-01-01

    The browser-based software program, Calibrated Peer Review (CPR) developed by the Molecular Science Project enables instructors to create structured writing assignments in which students learn by writing and reading for content. Though the CPR project covers only one experiment in general chemistry, it might provide lab instructors with a method…

  5. Peer Attachment, Perceived Parenting Style, Self-concept, and School Adjustments in Adolescents with Chronic Illness

    Directory of Open Access Journals (Sweden)

    Jeong-Ah Ahn, PhD, RN

    2016-12-01

    Conclusions: Healthcare providers can promote the process of school adjustment in several ways, such as discussing this issue directly with adolescent patients, along with their parents and peers, examining how the organization and content of the treatment can be modified according to the adolescents' school life.

  6. Student Acceptance and Application of Peer Assessment in a Final Year Genetics Undergraduate Oral Presentation

    Science.gov (United States)

    Verkade, Heather; Bryson-Richardson, Robert J.

    2013-01-01

    Undergraduate students benefit from observation of each other's oral presentations through both exposure to content and observation of presentation style. In order to increase the engagement and reflection of final year students in an oral presentation task, a peer assessment component was introduced using a rubric that emphasised scientific…

  7. Reviving a Digital Dinosaur: Text-Only Synchronous Online Chats and Peer Tutoring in Communication Centers

    Science.gov (United States)

    Schwartzman, Roy

    2013-01-01

    A qualitative and quantitative content analysis was conducted of all text-based synchronous online chats at an oral communication peer tutoring center throughout a semester. As a comparative benchmark, chats at the same university's main library were analyzed over the same time period. The library's chats were much more heavily weighted toward…

  8. Collaborative Learning with Web 2.0 Tools: Analysing Malaysian Students' Perceptions and Peer Interaction

    Science.gov (United States)

    Leow, Fui Theng; Neo, Mai

    2015-01-01

    Today, ICT, web resources and multimedia contents have become prevalent in Malaysian university classrooms; hence, the learning approaches need to be redesigned for enabling students to use these technologies in co-constructing new meaning. This study analyses student's perception and their peer interaction in the constructivist-collaborative…

  9. The Value of Peer Feedback Opportunities for Students in Writing Intensive Classes

    Science.gov (United States)

    Kennette, Lynne N.; Frank, Nichole M.

    2013-01-01

    The present study was conducted to examine the usefulness of peer feedback on APA-style research papers in a writing-intensive class. Subsequent to APA training, students were asked to review and provide feedback on a classmate's APA-style research report for both content and formatting. Performance on this research report was then compared to…

  10. Near-Peer Teaching in an Anatomy Course with a Low Faculty-to-Student Ratio

    Science.gov (United States)

    Duran, Claudia Elisa Pamanes; Bahena, Eduardo Navarro; Rodriguez, Maria de los Angeles Garcia; Baca, Guillermo Jacobo; Uresti, Antonio Sanchez; Elizondo-Omana, Rodrigo Enrique; Lopez, Santos Guzman

    2012-01-01

    Near-peer teaching is an educational format which utilizes tutors who are more advanced in a curriculum's content to supervise students' activities and to act as instructors in laboratory settings. This format is often used in anatomy laboratory courses. The goal of the present study is to describe the design and implementation of near-peer…

  11. The Effects of Peer Coaching in the Secondary Arts Classroom: Intentional Watching in the Dance Studio

    Science.gov (United States)

    Harding, Mary; Haven, Becky

    2009-01-01

    The intent of this action research study was to determine the effect peer coaching had on transfer of skills and content in the secondary arts classroom. Incorporating both qualitative and quantitative methods, the study took place in two public high schools, one a suburban high school and the other a first ring suburban high school (close to an…

  12. Peer Rejection and Internalizing Behavior: The Mediating Role of Peer Victimization in Preschool.

    Science.gov (United States)

    Metin Aslan, Özge

    2018-05-23

    The author examined the relationship among peer rejection, peer victimization, and internalizing behaviors. The author hypothesized that physical and relational victimization would have a different indirect effect on the relationship between peer rejection and internalizing behaviors. Participants were 94 preschool children (37 girls; average age 49.97 months) from two university preschools located in the northern part of the United States. The results indicated that internalizing behaviors predicted the mediating variables only regarding relational victimization. Relational victimization indirectly affected the association between peer rejection and internalizing behaviors. The study provides evidence of the mediating effect of victimization behaviors on the relationship among peer rejection, victimization, and internalizing behaviors.

  13. Use of peers to improve adherence to antiretroviral therapy: a global network meta-analysis.

    Science.gov (United States)

    Kanters, Steve; Park, Jay Jh; Chan, Keith; Ford, Nathan; Forrest, Jamie; Thorlund, Kristian; Nachega, Jean B; Mills, Edward J

    2016-01-01

    It is unclear whether using peers can improve adherence to antiretroviral therapy (ART). To construct the World Health Organization's global guidance on adherence interventions, we conducted a systematic review and network meta-analysis to determine the effectiveness of using peers for achieving adequate adherence and viral suppression. We searched for randomized clinical trials of peer-based interventions to promote adherence to ART in HIV populations. We searched six electronic databases from inception to July 2015 and major conference abstracts within the last three years. We examined the outcomes of adherence and viral suppression among trials done worldwide and those specific to low- and middle-income countries (LMIC) using pairwise and network meta-analyses. Twenty-two trials met the inclusion criteria. We found similar results between pairwise and network meta-analyses, and between the global and LMIC settings. Peer supporter+Telephone was superior in improving adherence than standard-of-care in both the global network (odds-ratio [OR]=4.79, 95% credible intervals [CrI]: 1.02, 23.57) and the LMIC settings (OR=4.83, 95% CrI: 1.88, 13.55). Peer support alone, however, did not lead to improvement in ART adherence in both settings. For viral suppression, we found no difference of effects among interventions due to limited trials. Our analysis showed that peer support leads to modest improvement in adherence. These modest effects may be due to the fact that in many settings, particularly in LMICs, programmes already include peer supporters, adherence clubs and family disclosures for treatment support. Rather than introducing new interventions, a focus on improving the quality in the delivery of existing services may be a more practical and effective way to improve adherence to ART.

  14. Exploring a QoS Driven Scheduling Approach for Peer-to-Peer Live Streaming Systems with Network Coding

    Science.gov (United States)

    Cui, Laizhong; Lu, Nan; Chen, Fu

    2014-01-01

    Most large-scale peer-to-peer (P2P) live streaming systems use mesh to organize peers and leverage pull scheduling to transmit packets for providing robustness in dynamic environment. The pull scheduling brings large packet delay. Network coding makes the push scheduling feasible in mesh P2P live streaming and improves the efficiency. However, it may also introduce some extra delays and coding computational overhead. To improve the packet delay, streaming quality, and coding overhead, in this paper are as follows. we propose a QoS driven push scheduling approach. The main contributions of this paper are: (i) We introduce a new network coding method to increase the content diversity and reduce the complexity of scheduling; (ii) we formulate the push scheduling as an optimization problem and transform it to a min-cost flow problem for solving it in polynomial time; (iii) we propose a push scheduling algorithm to reduce the coding overhead and do extensive experiments to validate the effectiveness of our approach. Compared with previous approaches, the simulation results demonstrate that packet delay, continuity index, and coding ratio of our system can be significantly improved, especially in dynamic environments. PMID:25114968

  15. Peer-Mentoring Program and Academic Atmosphere

    Directory of Open Access Journals (Sweden)

    Sri Endah Kusmartini

    2014-03-01

    Full Text Available Management of Sriwijaya State Polytechnic believes that peer-mentoring program has positive effects on students’ academic success. Moreover, it is also believed that good academic atmosphere should be developed. In line with these, researchers tried to investigate whether peer-mentoring program and academic atmosphere correlated significantly to students’ writing achievement partially and simultaneously. The research was conducted in English Department, Sriwijaya State Polytechnic with 60 samples taken randomly. Measures of Peer-mentoring Program and Academic Atmosphere were used sequentially to measure peer-mentoring program and academic atmosphere as perceived by the students. Meanwhile, writing score was used to find out writing achievement of the students. The hypotheses were tested by using Pearson Product Moment Correlation and Multiple Linear Regression. The results showed that peer-mentoring program and academic atmosphere as perceived by the students correlated significantly towards students’ writing achievement partially and simultaneously. Therefore it is recommended to continue the programs.

  16. Gender bias in scholarly peer review.

    Science.gov (United States)

    Helmer, Markus; Schottdorf, Manuel; Neef, Andreas; Battaglia, Demian

    2017-03-21

    Peer review is the cornerstone of scholarly publishing and it is essential that peer reviewers are appointed on the basis of their expertise alone. However, it is difficult to check for any bias in the peer-review process because the identity of peer reviewers generally remains confidential. Here, using public information about the identities of 9000 editors and 43000 reviewers from the Frontiers series of journals, we show that women are underrepresented in the peer-review process, that editors of both genders operate with substantial same-gender preference (homophily), and that the mechanisms of this homophily are gender-dependent. We also show that homophily will persist even if numerical parity between genders is reached, highlighting the need for increased efforts to combat subtler forms of gender bias in scholarly publishing.

  17. Are peer specialists happy on the job?

    Science.gov (United States)

    Jenkins, Sarah; Chenneville, Tiffany; Salnaitis, Christina

    2018-03-01

    This study was designed to examine the impact of role clarity and job training on job satisfaction among peer specialists. A 3-part survey assessing job training, job satisfaction, and role clarity was administered online to 195 peer specialists who are members of the International Association of Peer Specialists. Data was analyzed using descriptive statistics, correlational analyses to include multiple linear regressions and analysis of variance. Self-study and online training methods were negatively correlated with job satisfaction while job shadowing was positively correlated with job satisfaction. Role clarity was positively correlated with job satisfaction and job training satisfaction as well as job shadowing and one-on-one training. The use of self-study and online training for peer specialists is contraindicated by current findings, which suggest the need to utilize job shadowing or training methods that allow for personal interaction between peer specialists and their colleagues. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

  18. Peer Coaching Through mHealth Targeting Physical Activity in People With Parkinson Disease: Feasibility Study

    Science.gov (United States)

    Latham, Nancy K; Quintiliani, Lisa M

    2018-01-01

    Background Long-term engagement in exercise and physical activity mitigates the progression of disability and increases quality of life in people with Parkinson disease (PD). Despite this, the vast majority of individuals with PD are sedentary. There is a critical need for a feasible, safe, acceptable, and effective method to assist those with PD to engage in active lifestyles. Peer coaching through mobile health (mHealth) may be a viable approach. Objective The purpose of this study was to develop a PD-specific peer coach training program and a remote peer-mentored walking program using mHealth technology with the goal of increasing physical activity in persons with PD. We set out to examine the feasibility, safety, and acceptability of the programs along with preliminary evidence of individual-level changes in walking activity, self-efficacy, and disability in the peer mentees. Methods A peer coach training program and a remote peer-mentored walking program using mHealth was developed and tested in 10 individuals with PD. We matched physically active persons with PD (peer coaches) with sedentary persons with PD (peer mentees), resulting in 5 dyads. Using both Web-based and in-person delivery methods, we trained the peer coaches in basic knowledge of PD, exercise, active listening, and motivational interviewing. Peer coaches and mentees wore FitBit Zip activity trackers and participated in daily walking over 8 weeks. Peer dyads interacted daily via the FitBit friends mobile app and weekly via telephone calls. Feasibility was determined by examining recruitment, participation, and retention rates. Safety was assessed by monitoring adverse events during the study period. Acceptability was assessed via satisfaction surveys. Individual-level changes in physical activity were examined relative to clinically important differences. Results Four out of the 5 peer pairs used the FitBit activity tracker and friends function without difficulty. A total of 4 of the 5 pairs

  19. Peer Coaching Through mHealth Targeting Physical Activity in People With Parkinson Disease: Feasibility Study.

    Science.gov (United States)

    Colón-Semenza, Cristina; Latham, Nancy K; Quintiliani, Lisa M; Ellis, Terry D

    2018-02-15

    Long-term engagement in exercise and physical activity mitigates the progression of disability and increases quality of life in people with Parkinson disease (PD). Despite this, the vast majority of individuals with PD are sedentary. There is a critical need for a feasible, safe, acceptable, and effective method to assist those with PD to engage in active lifestyles. Peer coaching through mobile health (mHealth) may be a viable approach. The purpose of this study was to develop a PD-specific peer coach training program and a remote peer-mentored walking program using mHealth technology with the goal of increasing physical activity in persons with PD. We set out to examine the feasibility, safety, and acceptability of the programs along with preliminary evidence of individual-level changes in walking activity, self-efficacy, and disability in the peer mentees. A peer coach training program and a remote peer-mentored walking program using mHealth was developed and tested in 10 individuals with PD. We matched physically active persons with PD (peer coaches) with sedentary persons with PD (peer mentees), resulting in 5 dyads. Using both Web-based and in-person delivery methods, we trained the peer coaches in basic knowledge of PD, exercise, active listening, and motivational interviewing. Peer coaches and mentees wore FitBit Zip activity trackers and participated in daily walking over 8 weeks. Peer dyads interacted daily via the FitBit friends mobile app and weekly via telephone calls. Feasibility was determined by examining recruitment, participation, and retention rates. Safety was assessed by monitoring adverse events during the study period. Acceptability was assessed via satisfaction surveys. Individual-level changes in physical activity were examined relative to clinically important differences. Four out of the 5 peer pairs used the FitBit activity tracker and friends function without difficulty. A total of 4 of the 5 pairs completed the 8 weekly phone

  20. Vaginal delivery - discharge

    Science.gov (United States)

    Pregnancy - discharge after vaginal delivery ... You may have bleeding from your vagina for up to 6 weeks. Early on, you may pass some small clots when you first get up. Bleeding will slowly become ...