140 research outputs found

    Qualitative and Quantitative Approaches to the Study of Poverty: Taming the Tensions and Appreciating the Complementarities

    Get PDF
    There is a germane relationship between qualitative and quantitative approaches to social science research. The relationship is empirically and theoretically demonstrated by poverty researchers. The study of poverty, as argued in this article, is a study of both numbers and contextualities. This article provides a general overview of qualitative and quantitative approaches to poverty studies and argues that only a combination of the two approaches, where necessary, would provide a robust, rich and reliable data for researching issues of poverty. Hence, the contemporary drive towards a mixed methods approach in poverty research is not only welcomed but certainly timely as well. Thus, understanding ontological and epistemological paradigms about social sciences is imperative in dousing such tensions

    Aquaculture for the poor in Cambodia

    Get PDF
    This lesson learned reviewed the current status of aquaculture in Cambodia. It primarily covers inland fish farming development and coastal aquaculture projects targeted at poverty alleviation and food security. It focuses on approaches aimed at developing low cost systems, and less on high input aquaculture systems that are usually inaccessible to poor families.

    Influence of built structures on Tonle Sap fisheries : synthesis report

    Get PDF
    This document is a synthesis of the major findings and recommendation of a study on the influence of built structures on the fisheries of the Tonle Sap Lake. The multidisciplinary study analysed the influence and impact of built structures on hydrology, fish, and ultimately on people. The project established a database of major structures around the Tonle Sap Lake. Hydrologists modeled the influence of infrastructure on the flow and quality of water. Environmental scientists analysed information about how infrastructure affects the environment. Experts in ecology and fish biology assessed teh direct impacts on fisheries. Social scientists and economists evaluated the influence of infrastructure development on people's livelihoods, and studied local people's insights related to the planning, construction, and operation of built structures.Inland fisheries, Environmental impact, Structures, Man-induced effects, Cambodia, Tonle Sap L.,

    Testing climate-smart agricultural technologies and practices in Southeast Asia: a manual for priority setting

    Get PDF
    The project Integrated agricultural technologies for enhanced adaptive capacity and resilient livelihoods in climate-smart villages (CSVs) of Southeast Asia aims to provide climate-smart agriculture options to enhance adaptive capacity among CSV farmers and stakeholders, and contribute to more climate-resilient livelihoods, in selected sites in Cambodia, Lao PDR and Vietnam. In order to facilitate a participatory process leading to the selection of the most effective technologies and practices, a team of CCAFS researchers worked on the development of a prioritysetting manual. This manual includes a number of principles and a sequence of six steps which were developed based on a critical review of past and ongoing participatory climate-smart technology selection experiences carried out as part of CCAFS in Africa and Asia, the experiences of the research team with similar processes and activities and were complemented by insights from the literature. A draft of the manual was put to test by the CIAT-Asia coordinated project research team in Ma village in the north of Vietnam in July 2015

    Transforming aquatic agricultural systems towards gender equality: a five country review

    Get PDF
    Aquatic agricultural systems (AAS) are systems in which the annual production dynamics of freshwater and/or coastal ecosystems contribute significantly to total household income. Improving the livelihood security and wellbeing of the estimated 250 million poor people dependent on AAS in Bangladesh, Cambodia, the Philippines, the Solomon Islands and Zambia is the goal of the Worldfish Center-led Consortium Research Program (CRP), “Harnessing the development potential of aquatic agricultural systems for development.” One component expected to contribute to sustainably achieving this goal is enhancing the gender and wider social equity of the social, economic and political systems within which the AAS function. The CRP’s focus on social equity, and particularly gender equity, responds to the limited progress to date in enhancing the inclusiveness of development outcomes through interventions that offer improved availability of resources and technologies without addressing the wider social constraints that marginalized populations face in making use of them. The CRP aims to both offer improved availability and address the wider social constraints in order to determine whether a multi-level approach that engages with individuals, households and communities, as well as the wider social, economic and political contexts in which they function, is more successful in extending development’s benefits to women and other excluded groups. Designing the research in development initiatives to test this hypothesis requires a solid understanding of each CRP country’s social, cultural and economic contexts and of the variations across them. This paper provides an initial input into developing this knowledge, based on a review of literature on agriculture, aquaculture and gender relations within the five focal countries. Before delving into the findings of the literature review, the paper first justifies the expectation that successfully achieving lasting wellbeing improvements for poor women and men dependent on AAS rests in part on advances in gender equity, and in light of this justification, presents the AAS CRP’s conceptual frame

    Customer-related social stressors and front line employee turnover intention: The mediating role of job-related anxiety

    Get PDF
    Theory and empirical evidence suggests that customer stressors were positively related to frontline employee turnover intention. However, little work has focused on testing why and in what way customer stressors are related to such employee attitudinal outcome.To address this knowledge gap, we developed and tested a mediation model of turnover intention.Drawing on conservation of resources theory, we suggest that job-related anxiety might be a fundamental reason why customer-related stressors predicts front line employee turnover intention.The model was tested with a sample of 258 restaurant front line service employees. Results suggest a positive and significant relationship between customer-related stressors and employee turnover intention. Also, job-related anxiety was found to mediate the relationship between customer stressors and front line employee turnover intention. These results highlight the importance of job-related anxiety as a fundamental mechanism which explains why and in what way customer stressors are related to front line employee turnover intention

    βdecay of the 21/2^+ isomer in ^<93>Mo and level structure of ^<93>Nb

    Full text link
    The γ rays associated with β decay of the 21/2^+ isomer in ^Mo (Ex=2.425 MeV, T_=6.85 h) were measured with a selective sensitivity to long-lived isomer decays. A new 1262-keV transition was found in the γ-γ coincidence measurement, and it was attributed to a transition in ^Nb, which is the daughter nucleus of the β decay of the ^Mo isomer, from the 2.753- to the 1.491-MeV levels. Accurate γ-ray intensity balances have determined the β-decay intensity from the ^Mo isomer to the 2.753-MeV level in ^Nb and placed no appreciable intensity for the previously reported β-decay branching to the 2.180-MeV level, for which a recent in-beam γ-ray experiment assigned to be I^π = 17/2^-. Based on the γ-ray intensities from the 2.753-MeV level, spin-parity assignment of this level was revised from 21/2^+ to 19/2^+. The observed β-decay intensity and the spin-parity assignment were explained by the jj-coupling shell model calculations

    Use of Cryopreserved Osteogenic Matrix Cell Sheets for Bone Reconstruction

    Get PDF
    Abstract Skeletal diseases, such as nonunion and osteonecrosis, are now treatable with tissue engineering techniques. Single cell sheets called osteogenic matrix cell sheets (OMCSs) grown from cultured bone marrow-derived mesenchymal stem cells show high osteogenic potential; however, long preparation times currently limit their clinical application. Here, we report a cryopreservation OMCS transplantation method that shortens OMCS preparation time. Cryopreserved rat OMCSs were prepared using slow-and rapid-freezing methods, thawed, and subsequently injected scaffold-free into subcutaneous sites. Rapid-and slow-frozen OMCSs were also transplanted directly to the femur bone at sites of injury. Slow-freezing resulted in higher cell viability than rapid freezing, yet all two cryopreservation methods yielded OMCSs that survived and formed bone tissue. In the rapid-and slow-freezing groups, cortical gaps were repaired and bone continuity was observed within 6 weeks of OMCS transplantation. Moreover, while no significant difference was found in osteocalcin expression between the three experimental groups, the biomechanical strength of femurs treated with slow-frozen OMCSs was significantly greater than those of non-transplant at 6 weeks post-injury. Collectively, these data suggest that slow-frozen OMCSs have superior osteogenic potential and are better suited to produce a mineralized matrix and repair sites of bone injury

    Source identification of heavy metals in Particulate Matter (PM10) in a Malaysian traffic area using multivariate techniques

    Get PDF
    This study was conducted to determine heavy metal concentrations in particulate matter (PM10) and the source identification in the areas affected by traffic during the southwest monsoon from June to July 2014. Collection of the particulate samples was done at three sampling sites that have varying traffic densities (high, medium, and low). Samples were collected using a high-volume air sampler. Heavy metals in the particulate matter (PM10) were assessed with inductively coupled plasma mass spectrometry. The results show that the mean concentrations of PM10 for high-, medium-, and low-density traffic were found to be 207.63±7.82, 164.92±10.68, and 90.09±20.70 µg m⁻³, respectively. The concentrations in high- and medium-density areas were found to be significantly higher than 150 µg m⁻³ for 24 hrs as per Recommended Malaysian Air Quality Guidelines (RMAQG). The heavy metals found were dominated by Ba and Fe, followed by Cu > V> Zn > Pb > Mn > Cr> As > Ni >Cd > Co. A comparison of the concentrations of heavy metals with the United State Environmental Protection Agency (USEPA) and World Health Organization (WHO) guidelines revealed that As was higher than the standards in high- and medium-density areas. Cluster analysis (CA) and principal component analysis (PCA) were employed in the identification of the sources of metals for high-, medium-, and low-traffic densities. The CA identified three clusters for high-, medium-, and low-traffic densities, while PCA extracted four sources for high-, medium-, and low-traffic densities and the major pollution sources identified were vehicle exhaust emission, non-exhaust emission (brake and tire wear), and re-suspension dust
    corecore