43,106 research outputs found
A Model for Selecting the Most Cost-Effective Pressure Control Device for More Sustainable Water Supply Networks
Pressure Reducing Valves (PRV) have been widely used as a device to control pressure at nodes in water distribution networks and thus reduce leakages. However, an energy dissipation takes place during PRV operation. Thus, micro-hydropower turbines and, more precisely, Pump As Turbines (PAT) could be used as both leakage control and energy generating devices, thus contributing to a more sustainable water supply network. Studies providing clear guidelines for the determination of the most cost-effective device (PRV or PAT) analysing a wide database and considering all the costs involved, the water saving and the eventual power generation, have not been carried out to date. A model to determine the most cost-effective device has been developed, taking into account the Net Present Value (NPV). The model has been applied to two case studies: A database with 156 PRVs sites located in the UK; and a rural water supply network in Ireland with three PRVs. The application of the model showed that although the investment cost associated to the PRV installation is lower in the majority of cases, the NPV over the lifespan of the PAT is higher than the NPV associated with the PRV operation. Furthermore, the ratio between the NPV and the water saved over the lifespan of the PAT/PRV also offered higher values (from 6% to 29%) for the PAT installation, making PATs a more cost-effective and more sustainable means of pressure control in water distribution networks. Finally, the development of less expensive turbines and/or PATs adapted to work under different flow-head conditions will tip the balance toward the installation of these devices even further
Interpersonal emotion regulation: a review of social and developmental components
A staple theme in clinical psychology, emotion regulation, or the ability to manage one's emotions, is directly linked with personal wellbeing and the ability to effectively navigate the social world. Until recently, this concept has been limited to a focus on intrapersonal processes, such as suppression. Less emphasis has been placed on developmental, social, and cultural aspects of emotion regulation. We argue here that as social beings, our engagement in emotion regulation may often occur interpersonally, with trusted others helping us to regulate our emotions. This review will highlight recent research on interpersonal emotion regulation processes.Dr Hofmann receives financial support from the Alexander von Humboldt Foundation (as part of the Humboldt Prize), NIH/NCCIH (R01AT007257), NIH/NIMH (R01MH099021, U01MH108168), and the James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Special Initiative. He receives compensation for his work as an advisor from the Palo Alto Health Sciences and for his work as a Subject Matter Expert from John Wiley & Sons, Inc. and SilverCloud Health, Inc. He also receives royalties and payments for his editorial work from various publishers. (Alexander von Humboldt Foundation; R01AT007257 - NIH/NCCIH; R01MH099021 - NIH/NIMH; U01MH108168 - NIH/NIMH; James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Special Initiative)Accepted manuscrip
The NGO Sector in Community Development: Emerging roles, strategies and identities
This community engaged thesis will articulate some of the identities, patterns, and dominant practices of NGOs related to community development in the hope of uncovering emerging trends. The literature review of this thesis will have a slight focus on NGO’s working in direct conjunction with the HIV/AIDS epidemic in sub-Saharan Africa. In addition, it will manifest the promise of social capital as necessary to an organization’s success. Civic participation remains critical in enabling an NGO to be politically active, to continue building networks, and instilling positive social attitudes. After expounding on these issues, this thesis will then propose a solution- more specifically, a model- that attempts to relate field research findings to current grassroot initiatives that have succeeded in achieving community development through youth empowerment and education in Rhode Island. The strategy of youth empowerment and civic engagement is an effective model for community development and positive social change. By sharing insights and identifying best practices, the NGO sector can enhance coordination and partnerships for effective country-level implementation of youth development initiatives. The author hopes that the findings of this thesis and her field research will be employed and utilized in the development of progressive community-based organizations dedicated to combating the HIV/AIDS virus in Africa
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Understanding Why Older Adults With Type 2 Diabetes Join Diabetes Online Communities: Semantic Network Analyses.
BackgroundAs individuals age, chronic health difficulties may disrupt physical and social well-being. Individuals can turn to online communities to interact with similar peers, which may help buffer negative effects resulting from health difficulties.ObjectiveThis study investigated the reasons that older adults join a diabetes online community to better understand the specific resources that are being sought.MethodsWe used semantic network analyses to categorize the reasons participants provided for joining a community during the sign-up process.ResultsThe most frequent reasons for joining were to seek information about their health condition, to help with self-management of health difficulties, for feelings of informational and social support, and for having a community with whom to share. Women were more likely to go online for sharing and companionship as well as for information and social support reasons, whereas men were more likely to go online for general information and self-management reasons.ConclusionsThis study shows the reasons older adults seek to join a diabetes online community: for increased information and support regarding chronic health difficulties. Practitioners may want to consider ways to promote access to online communities among their older patients as a source of health information and a resource to provide a sense of community
The Future of Disability in Alaska Summit & Follow-up Survey
The Future of Disability in Alaska Summit was held in Anchorage in the summer of 2013, May 9-10. The purpose was to gather perspectives from a diverse group of stakeholders to inform a vision of the future for people with disabilities in Alaska in five broad topical areas: 1) Housing Arrangements, 2) Advocacy, 3) Relationships, 4) Economic Wellbeing, and 5) Health. About 76 stakeholders participated in the summit including people with disabilities, family members, advocates, service providers, policymakers, and others. A follow-up online survey was conducted to gather information from a broader range of stakeholders and to get a sense of the highest priorities in each area. The purpose of the report and other products coming out of this effort is to inspire stakeholders to periodically reflect, individually and in groups, on how they are working toward the vision in a relevant area and taking action in the context of advocacy, policy/regulation, funding, and services/resources. The report states a vision for each of the five topical areas and includes many suggested strategies to accomplish it.Funded in part by Grant Number T7320663 from the Maternal and Child Health Bureau, Health Resources and Services Administration; and Grant Number 90DD0009-02-00 from the Administration on Intellectual and Developmental Disabilities, Administration for Community Living; both in the U.S. Department of Health and Human ServicesList of Tables / Executive Summary / Introduction / Method / Participants / Result
The Lifecycle and Cascade of WeChat Social Messaging Groups
Social instant messaging services are emerging as a transformative form with
which people connect, communicate with friends in their daily life - they
catalyze the formation of social groups, and they bring people stronger sense
of community and connection. However, research community still knows little
about the formation and evolution of groups in the context of social messaging
- their lifecycles, the change in their underlying structures over time, and
the diffusion processes by which they develop new members. In this paper, we
analyze the daily usage logs from WeChat group messaging platform - the largest
standalone messaging communication service in China - with the goal of
understanding the processes by which social messaging groups come together,
grow new members, and evolve over time. Specifically, we discover a strong
dichotomy among groups in terms of their lifecycle, and develop a separability
model by taking into account a broad range of group-level features, showing
that long-term and short-term groups are inherently distinct. We also found
that the lifecycle of messaging groups is largely dependent on their social
roles and functions in users' daily social experiences and specific purposes.
Given the strong separability between the long-term and short-term groups, we
further address the problem concerning the early prediction of successful
communities. In addition to modeling the growth and evolution from group-level
perspective, we investigate the individual-level attributes of group members
and study the diffusion process by which groups gain new members. By
considering members' historical engagement behavior as well as the local social
network structure that they embedded in, we develop a membership cascade model
and demonstrate the effectiveness by achieving AUC of 95.31% in predicting
inviter, and an AUC of 98.66% in predicting invitee.Comment: 10 pages, 8 figures, to appear in proceedings of the 25th
International World Wide Web Conference (WWW 2016
From positive youth development to youth’s engagement : the dream teens
In addition to the empirical validation of ‘health and happiness’ determinants, theoretical
models suggesting where to ground actions are necessary. In the beginning of the
twentieth century, intervention models focused on evaluation and empirical validation
were only concerned about overt behaviours (verbal and non-verbal) and covert
behaviours (cognitions and emotions). Later on in the middle of the century, there was a
shift from treating the problems to a positive approach, focused on promoting assets and
individual strengths. Thus, the role of social competences, self-regulation and resilience
became salient. Researchers also highlighted the importance of social cohesion and
social support, as active health and wellbeing facilitators. More recently, in the twentyfirst
century, the population’s engagement (positive engagement) has become crucial.
This paper presents the evolution of this theoretical and scientific path, using Portugal as
a case study, where early interventions focused on the positive aspects of both covert and
overt behaviours, while more recent interventions included explicitly the perspective of
youth engagement and participation, as is the case of the Dream Teens Project. It is
expected that the political and professional understanding of this trajectory will allow
professionals to provide better health and educational services, improving young
people’s engagement, quality of life, health and wellbeingpeer-reviewe
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