46 research outputs found
A Systematic Review of Mosquito Coils and Passive Emanators: Defining Recommendations for Spatial Repellency Testing Methodologies.
Mosquito coils, vaporizer mats and emanators confer protection against mosquito bites through the spatial action of emanated vapor or airborne pyrethroid particles. These products dominate the pest control market; therefore, it is vital to characterize mosquito responses elicited by the chemical actives and their potential for disease prevention. The aim of this review was to determine effects of mosquito coils and emanators on mosquito responses that reduce human-vector contact and to propose scientific consensus on terminologies and methodologies used for evaluation of product formats that could contain spatial chemical actives, including indoor residual spraying (IRS), long lasting insecticide treated nets (LLINs) and insecticide treated materials (ITMs). PubMed, (National Centre for Biotechnology Information (NCBI), U.S. National Library of Medicine, NIH), MEDLINE, LILAC, Cochrane library, IBECS and Armed Forces Pest Management Board Literature Retrieval System search engines were used to identify studies of pyrethroid based coils and emanators with key-words "Mosquito coils" "Mosquito emanators" and "Spatial repellents". It was concluded that there is need to improve statistical reporting of studies, and reach consensus in the methodologies and terminologies used through standardized testing guidelines. Despite differing evaluation methodologies, data showed that coils and emanators induce mortality, deterrence, repellency as well as reduce the ability of mosquitoes to feed on humans. Available data on efficacy outdoors, dose-response relationships and effective distance of coils and emanators is inadequate for developing a target product profile (TPP), which will be required for such chemicals before optimized implementation can occur for maximum benefits in disease control
Neurostimulatory and ablative treatment options in major depressive disorder: a systematic review
Introduction Major depressive disorder is one of the most disabling and common diagnoses amongst psychiatric disorders, with a current worldwide prevalence of 5-10% of the general population and up to 20-25% for the lifetime period. Historical perspective Nowadays, conventional treatment includes psychotherapy and pharmacotherapy; however, more than 60% of the treated patients respond unsatisfactorily, and almost one fifth becomes refractory to these therapies at long-term follow-up. Nonpharmacological techniques Growing social incapacity and economic burdens make the medical community strive for better therapies, with fewer complications. Various nonpharmacological techniques like electroconvulsive therapy, vagus nerve stimulation, transcranial magnetic stimulation, lesion surgery, and deep brain stimulation have been developed for this purpose. Discussion We reviewed the literature from the beginning of the twentieth century until July 2009 and described the early clinical effects and main reported complications of these methods. © The Author(s) 2010.Link_to_subscribed_fulltex
Working passionately does not always pay off : the negative moderating role of passion on the relationship between deliberate practice and venture performance
Deliberate practice, an iterative process that leads to expertise, is found to be positively associated with superior performance in domains such as sports, education, and entrepreneurship. At the same time, deliberate practice is also seen as being less than enjoyable and difficult to pursue consistently. As such, passion is considered to be a vital motivator of engagement in and maintenance of deliberate practice. Despite the evident importance of passion, the relationship between passion and deliberate practice in entrepreneurship has not been subject to sufficient empirical evaluation. Therefore, in this study, we consider the way in which passion moderates the relationship between deliberate practice and venture performance. We hypothesize that deliberate practice is positively related to venture performance and that passion positively moderates this relationship. We find support for our first hypothesis, in line with previous studies. However, contrary to our second hypothesis, we find that entrepreneurial passion negatively moderates the deliberate practice-venture performance relationship. In response to this finding, we provide possible explanations as to why this negative moderation effect was observed by drawing on Kolb’s experiential learning cycle
Habitual entrepreneurs in the making: how labour market rigidity and employment affects entrepreneurial re-entry
Small Business and Job Creation in The United States: The Role of New and Young Businesses
Transnational entrepreneurs, worldchanging entrepreneurs, and ambassadors: a typology of the new breed of expatriates
A Network-based Approach on Opportunity Recognition
This paper argues that individuals differ in terms of their perception of opportunities because of the differences between the networks they are embedded in. We focus on two aspects of individuals’ embeddedness in networks, that is, (1) individuals’ belonging to residential areas that are more or less likely to be characterized by network cohesion, and (2) individuals’ differential access to network contacts based on the level of human capital they hold. Our analyses show that the nature of one’s residential area influences the perception of entrepreneurial opportunities. Further, we find a positive effect for education, i.e., people with a higher educational level are more likely to perceive entrepreneurial opportunities compared to those with a lower educational level. Copyright Springer 2005entrepreneurship, networks, opportunity recognition,
Building Well-Being:Neighbourhood Flourishing and Approaches for Participatory Urban Design Intervention
The characterisation of individual Subjective Well-being (SWB) is increasingly robust, whereas social SWB at neighbourhood-level is not. We propose a preliminary framework for neighbourhood flourishing: strong SWB among neighbourhood residents. Urban design may positively affect neighbourhood flourishing. We demonstrate the utility of the framework in designing neighbourhoods via participatory case studies, using two approaches: Health Impact Assessment (HIA) and Extreme and Participatory Citizen Science (EPaCS). We show promising links between residents’ participation, urban design factors and neighbourhood flourishing outcomes. Our cases reveal resources, problems, and solutions not necessarily uncovered by technical ‘experts’, increasing the likelihood of supporting neighbourhood flourishing. We conclude that EPaCS and HIA have potential for the application of our framework. Neighbourhood flourishing may be a key yardstick by which urban environments and participatory processes should be judged. We recommend that the framework and its application be developed further via collaboration between academics, policy-makers, practitioners and communities
