528 research outputs found

    Feed Assessment of Chieng Luong and Chieng Chung communes, Mai Son

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    Community Forestland Management, Outside Interventions and Local Responses: The case of the Thai ethnic group in the Hanh Dich commune, Que Phong district, Nghe An province, Vietnam

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    In an increasing interaction between indigenous or isolated ethnic communities and outside actors, a lack of confirmation of local forestland rights is seen as one of the most critical issues. Does the outsiders’ occupancy of land for rent seeking and authoritative patronage for forest management meet the dispossessed people’s aspirations? How and to what extent should local communities be involved in forestland management and play a determining role in their own future? To answer these questions, this research is based on in-depth interviews focusing on the folk traditions, cultural beliefs, customary laws, local knowledge, and comments and recommendations of the local Thai ethnic people and some outsiders residing in the Hanh Dich commune, Que Phong district, Nghe An province, Vietnam. In addition, a number of previous case studies and reports from the archive of SPERI (Social Policy Ecology Research Institute) and its alliance members have been synthesised and analysed. The essential findings and arguments in this thesis comprise the local Thai people’s cultural traits, chronicles of outside interventions, local responses, and cognitive and methodological approaches to the study of indigenous cultures and their forestlands. It was found that local people have been upholding their holistic and unique perspectives, beliefs, customary laws, traditional organizational and institutional practices and that these inherent values and strengths can contribute effectively to forest protection and improvement of local people’s livelihood. However, it was also observed that the increasing imposition of the mainstream top-down approaches have not recognized or encouraged, that is to say, have undermined local strengths and values. In addition, on the basis of an ethnocentric view, superficial perceptions of the ethnic minority peoples and their values have pervaded in the Vietnamese media. These phenomena raise questions as to cultural rights, human rights, and the quality of the policy making process and law enforcement which are inevitably affected by these ethnocentric views and approaches. To counteract the hurtful effects of mainstream interventions, local people have responded in a subtle and implicit way. As a result of outside interventions, they have had to find ways to adjust their productive and cultural settings. However, there remain wishes to recover traditional cultural values, especially in the minds of the elders. In an alternative bottom-up approach facilitated by SPERI, the people are stimulated to promote their own institutional and organizational strengths towards their brighter future. In a democratized and decentralized process, community’s land rights and customary rights should be officially recognized and confirmed. But official recognition should not be seen as the final goal, only as a supportive factor while the local community’s strengths and self-enforcement of their rights are determinant. To this end, indigenous peoples need further opportunities for networking, capacity building, and taking part in thorough socio-cultural ethnographic research in order to ensure that they are more truly and fairly represented

    A Local Search Modeling for Constrained Optimum Paths Problems (Extended Abstract)

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    Constrained Optimum Path (COP) problems appear in many real-life applications, especially on communication networks. Some of these problems have been considered and solved by specific techniques which are usually difficult to extend. In this paper, we introduce a novel local search modeling for solving some COPs by local search. The modeling features the compositionality, modularity, reuse and strengthens the benefits of Constrained-Based Local Search. We also apply the modeling to the edge-disjoint paths problem (EDP). We show that side constraints can easily be added in the model. Computational results show the significance of the approach

    A Study on Employment for Rural Laborers in the Process of Industrialization and Modernization of Vietnam

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    Employment and job creation are global socio-economic issues and concern every country in the world and Vietnam is no exception. Today, the concept of development is comprehensively understood and economic growth is associated with progress, social justice, poverty reduction, on the basis of creating sustainable jobs for workers. At different times, employments for workers also have different characteristics. In the dimension of this study, employment for rural laborers with the case study of Nam Dinh of Vietnam have been investigated, then some recommendations are proposed for creating more jobs for rural people. Keywords: Employment, job creation, rural employment, rural labor. DOI: 10.7176/EJBM/12-21-13 Publication date:July 31st 202

    Growth, survival and food utilization efficiency of longfin batfish (<em>Platax teira</em> Forsskål, 1775) larvae reared under different salinity levels

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    Salinity is crucial in fish larval rearing. In longfin batfish (Platax teira), little research has been conducted regarding the specific effects of salinity on growth, survival, deformity, and food utilization efficiency. This study aimed to determine the optimal salinity level for larval rearing of the longfin batfish by testing five different salinity levels (10, 15, 20, 25, and 30‰). Larvae of 1.5 cm in length and 0.2 g/fish in weight were stocked in cylindrical fiberglass tanks (300 L) at a density of 1 fish/L. The fish were fed to meet their dietary requirement and divided into four daily feedings. Each treatment was replicated three times over a 28-day period of rearing. The results revealed that salinity significantly influenced the growth (length, weight, biomass), and food utilization efficiency of the longfin batfish larvae. Overall, larvae reared at salinity levels of 15-20‰ exhibited superior performance compared to those exposed to salinity levels of 10, 25, and 30‰. However, salinity did not affect the coefficient of variation, survival, and deformity. From these findings, it is recommended to rear longfin batfish larvae at a salinity of 15-20‰ to achieve optimal growth and food utilization efficiency. This study provides valuable insights for longfin batfish larval rearing guidance, contributing to the aquaculture development of this economically valuable species

    Greenhouse gas emissions from piggery and biogas digesters in the Red River Delta of Vietnam

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    High demand for pork consumption in Vietnam has led to a shift of pig production systems from smallholder to industrial-scale farms, particularly in the Red River Delta. This production intensification also produces massive manure and urine quantities, leading to water, air, and soil pollution. The use of biogas plants has been seen as efficient to achieve in the same time a decrease in pollution, and a provision of biogas resources and bio-organic fertilizers. However, increasing pig head density has been causing great pressure on biogas digesters, as their size is not big enough for treatments anymore. Inappropriate utilization and management of biogas digesters can not only cause losses from pig wastes, but also contributes to increase greenhouse gas (GHG) emissions such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). This case study aims to identify the role and contributions of biogas digesters to better manage the sources of GHG emissions from pig wastes for different types of pig farms. Four provinces of the Red River Delta were selected to test the pig waste management efficiency of biogas digesters and measure GHG emissions from these systems. The findings show that CO2, CH4 and N2O emission rates from pig manure are at least twice as much what is allowed under the Vietnam national technical regulation on ambient air quality. However, the GHGs emission rate does not significantly differ between smallholder and industrial-scale farms in the four surveyed provinces. Sampling position (between inside piggeries and outside the outlet of biogas digesters) did not affect significantly GHG emissions rate. These results confirm that the pig waste management of biogas digesters for both smallholder and industrial-scale pig farms is not efficient and that efforts need to be invested to mitigate GHG emissions in pig production. Reducing pig density per piggery is highly recommended. The modification of biogas digester structure to separate solid pig manure and urine should also be considered. Otherwise, the application of other alternative aerobic or anaerobic digestion technologies should also be encouraged and promoted. Biogas digesters in pig production have a significant role to play in Vietnam government’s mitigation strategies, as well as from the perspective of biosafety and animal husbandry policies

    Trichinellosis in Vietnam

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    Trichinellosis is a zoonotic parasitic disease with a worldwide distribution. The aim of this work was to describe the epidemiological and clinical data of five outbreaks of trichinellosis, which affected ethnic minorities living in remote mountainous areas of northwestern Vietnam from 1970 to 2012. Trichinellosis was diagnosed in 126 patients, of which 11 (8.7%) were hospitalized and 8 (6.3%) died. All infected people had consumed raw pork from backyard and roaming pigs or wild boar at wedding, funeral, or New Year parties. The short incubation period (average of 9.5 days), the severity of the symptoms, which were characterized by diarrhea, abdominal pain, fever, myalgia, edema, weight loss, itch, and lisping, and the high mortality, suggest that patients had ingested a high number of larvae. The larval burden in pigs examined in one of the outbreaks ranged from 70 to 879 larvae/g. These larvae and those collected from a muscle biopsy taken from a patient from the 2012 outbreak were identified as Trichinella spiralis. Data presented in this work show that the northern regions of Vietnam are endemic areas for Trichinella infections in domestic pigs and humans
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