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Structural Barriers (structural + barrier)
Selected AbstractsPoverty and Local Governments: Economic Development and Community Service Provision in an Era of DecentralizationGROWTH AND CHANGE, Issue 3 2009LINDA LOBAO ABSTRACT Social scientists have given substantial attention to poverty across U.S. localities. However, most work views localities through the lens of population aggregates, not as units of government. Few poverty researchers question whether governments of poorer localities have the capacity to engage in economic development and service activities that might improve community well-being. This issue is increasingly important as responsibilities for growth and redistribution are decentralized to local governments that vary dramatically in resources. Do poorer communities have less activist local governments? Are they more likely to be engaged in a race to the bottom, focusing on business attraction activities but neglecting services for families and working people? We bring together two distinct literatures, critical research on decentralization and research on local development efforts, that provide contrasting views about the penalty of poverty. Data are from a unique, national survey of county governments measuring activity across two time points. The most consistent determinants of activity are local government capacity, devolutionary pressures, and inertia or past use of strategies. Net of these factors, levels and changes in poverty do not significantly impact government activity. There is no evidence the nations' poorest counties are racing to the bottom. Findings challenge views that poverty is a systematic structural barrier to pursuing innovative economic development policies and suggest that even poorer communities can take steps to build local capacity, resources, and networks that expand programs for local businesses and low-wage people. [source] APPLIED ISSUES: Size-dependent mortality of migratory silver eels at a hydropower plant, and implications for escapement to the seaFRESHWATER BIOLOGY, Issue 10 2010O. CALLES Summary 1.,The European eel population has decreased drastically during recent decades, and new EU-legislation calls for measures to change this negative trend. This decline has been attributed to a number of factors, including habitat fragmentation by structural barriers that prevent eels moving between freshwater and the sea. The success of downstream migrating adult silver eels migrating past a hydroelectric plant (HEP) in Sweden was examined by radio-telemetry, and the results were considered in a historical context by analysing catch data from the river for 1957,2006. 2.,The choice of routes and passage success were quantified for three treatment groups and one control group of silver eels. The first treatment, the reservoir group (n = 50), was released into the reservoir upstream of the HEP, and these fish could proceed downstream by passing through the HEP (20 mm rack and turbines) or by entering the spill gates into the former channel, bypassing the HEP. The second treatment group (inside rack, n = 15) was released downstream of the 20-mm rack and had to pass through the turbines to continue migration to the sea. The third treatment group consisted of dead radio-tagged eels (n = 6) that were released into the turbines to study the extent of drifting by dead individuals. Finally, the control group (n = 50) was released downstream of the HEP to test for effects of confounding factors. 3.,Most live individuals displayed migratory behaviour and continued to proceed downstream after release. Only 8% of the fish released in the reservoir or downstream of the HEP (control) did not migrate. The probability of reaching the next HEP, 24 km further downstream, was high for the control group (96%) and the reservoir-released individuals that passed the HEP via the spill gates and the former channel (83%). Survival was low and size-dependent for the individuals that passed the turbines (40%) and even lower for the individuals that had to pass through the rack and the turbines (26%). The overall passage success for eels released in the reservoir was 30%, including both routes. 4.,Annual catch data from 1957 to 2006 showed that the number of eels in the River Ätran has decreased. Despite this decrease, escapement biomass has remained unchanged, because of the fact that the mean size of eels has doubled. Passage data from 2007 show that changes in size and abundance have resulted in a reduction of relative escapement to the sea to values that are 21,24% of what they were in 1957,66. However, this low level of escapement could potentially be rectified if appropriate measures facilitating HEP passage are successfully implemented, since the potential escapement biomass in the river, owing to the large size of the eels, has changed little since the 1950s. [source] Evaluating decision aids , where next?HEALTH EXPECTATIONS, Issue 2 2004Alicia O'Cathain BSc MSc MA Abstract Decision aids have been developed to help patients become involved in decision-making about their individual health care. During the evaluation of a particular decision aid in maternity care , a set of 10 ,Informed Choice' leaflets , we considered the lessons learnt for evaluation of decision aids in the future. Decision aids have been tested mainly in explanatory trials and have been found to be effective. We argue that existing decision aids should be subjected to more pragmatic trials to test their effectiveness in the real world. The small amount of evidence on their use in the real world shows that they face challenges, resulting in poor implementation. Therefore, we propose that implementation strategies are developed which take heed of the findings of research on getting evidence into practice, and in particular address structural barriers such as the lack of time available to health professionals. We recommend that these ,decision aid implementation packages' are developed in conjunction with both health professionals and patients, and identify and address potential barriers to both the delivery of patient involvement in decision-making, and the use of decision aids, in the real world. These ,packages' can then be submitted to pragmatic evaluation. [source] Developmental strategy of the endoparasite Xenos vesparum (strepsiptera, Insecta): Host invasion and elusion of its defense reactionsJOURNAL OF MORPHOLOGY, Issue 7 2007Fabio Manfredini Abstract To successfully complete its endoparasitic development, the strepsipteran Xenos vesparum needs to elude the defense mechanisms of its host, the wasp Polistes dominulus. SEM and TEM observations after artificial infections allow us to outline the steps of this intimate host,parasite association. Triungulins, the mobile 1st instar larvae of this parasite, are able to "softly" overcome structural barriers of the larval wasp (cuticle and epidermis) without any traumatic reaction at the entry site, to reach the hemocoel where they settle. The parasite molts 48 h later to a 2nd instar larva, which moves away from the 1st instar exuvium, molts twice more without ecdysis (a feature unique to Strepsiptera) and pupates, if male, or develops into a neotenic female. Host encapsulation involves the abandoned 1st larval exuvium, but not the living parasite. In contrast to the usual process of encapsulation, it occurs only 48 h after host invasion or later, and without any melanization. In further experiments, first, we verified Xenos vesparum's ability to reinfect an already parasitized wasp larva. Second, 2nd instar larvae implanted in a new host did not evoke any response by hemocytes. Third, we tested the efficiency of host defense mechanisms by implanting nylon filaments in control larval wasps, excluding any effect due the dynamic behavior of a living parasite; within a few minutes, we observed the beginning of a typical melanotic encapsulation plus an initial melanization in the wound site. We conclude that the immune response of the wasp is manipulated by the parasite, which is able to delay and redirect encapsulation towards a pseudo-target, the exuvia of triungulins, and to elude hemocyte attack through an active suppression of the immune defense and/or a passive avoidance of encapsulation by peculiar surface chemical properties. J. Morphol., 2007 © 2007 Wiley-Liss, Inc. [source] Implementing a postcolonial feminist perspective in nursing research related to non-Western populationsNURSING INQUIRY, Issue 2 2003Louise Racine Implementing a postcolonial feminist perspective in nursing research related to non-Western populations In this article, I argue that implementing a postcolonial feminist perspective in nursing research transcends the limitations of modern cultural theories in exploring the health problems of non-Western populations. Providing nursing care in pluralist countries like Canada remains a challenge for nurses. First, nurses must reflect on their ethnic background and stereotypes that may impinge on the understanding of cultural differences. Second, dominant health ideologies that underpin nurses' everyday practice and the structural barriers that may constrain the utilization of public healthcare services by non-Western populations must be further examined. Postcolonial feminism is aimed at addressing health inequities stemming from social discriminative practices. I will draw on extant literature and data of an ongoing ethnography exploring the Haitian caregivers' ways of caring for ageing relatives at home to unveil how the larger social and cultural world has an impact on caregivers' everyday lives. Marginalized locations represent privileged sites from which health problems, intersecting with power, race, gender, and social classes, can be addressed. Postcolonial feminism provides the analytic lens to look at the impact of these factors in shaping health experiences. It also suggests redirecting nursing cultural research and practice to achieve social justice in the healthcare system. [source] The Child Welfare System: Through the Eyes of Public Health NursesPUBLIC HEALTH NURSING, Issue 4 2005Janet U. Schneiderman Abstract,Objective: This qualitative descriptive study investigates how public health nurses working within the child welfare system view the organization and the organization's effect on their case management practice. Design: Semistructured interviews were conducted utilizing the Bolman,Deal Organizational Model. This model identifies four frames of an organization: symbolic, human resources, political, and structural. Sample: A purposive sample of nine nurses and one social worker was selected to participate in comprehensive interviews. Results: Data analysis identified two main themes. The first theme was the presence of organizational structural barriers to providing case management. The second theme was the lack of political influence by the nurses to change the structure of the organization; hence, their skills could be more completely utilized. Conclusions: Public health nurses who work in child welfare will need to systematically analyze their role within the organization and understand how to work in "host settings." Nursing educators need to prepare public health nurses to work in non-health care settings by teaching organizational analysis. [source] Creative Leadership Processes in Project Team Development: An Alternative to Tuckman's Stage ModelBRITISH JOURNAL OF MANAGEMENT, Issue 4 2000Tudor Rickards We propose that theories of project team development and of creativity can be integrated into a new conceptual framework. The framework proposes two structural barriers that bear on team performance, and modifies the well-established team development model of Tuckman. Creative leadership is suggested as an important means of breaching the barriers. Its differentiating feature seems to be its effectiveness in establishing protocols that sustain the creative efforts of team members. We have designated the protocols ,benign structures'. Empirical evidence is provided from a range of studies of project teams in industrial settings. [source] | |||||||||||||