20 research outputs found

    Steady MHD Free Convection Flow with Thermal Radiation past a Vertical Porous Plate Immersed in a Porous Medium

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    Abstract: The present study is concerned with thermal radiation in a steady two-dimensional MHD free convection flow through a porous vertical flat plate immersed in a porous medium. In the analysis a DarcyForchhemier model is considered while the fluid is taken to be gray, absorbing-emitting radiation. The nonlinear governing equations have been transformed by the usual similarity transformation to a system of ordinary differential equations. These dimensionless similar equations are then solved numerically employing the Nachtsheim-Swigert shooting iteration technique along with sixth order Runge-Kutta integration scheme. Finally the effects of the pertinent parameters are examined

    What did the public think of health services reform in Bangladesh? Three national community-based surveys 1999–2003

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    BACKGROUND: Supported by development partners, the Government of Bangladesh carried out a comprehensive reform of health services in Bangladesh between 1998 and 2003, intended to make services more responsive to public needs: the Health and Population Sector Programme (HPSP). They commissioned a series of surveys of the public, as part of evaluation of the HPSP. This article uses the survey findings to examine the changes in public opinions, use and experience of health services in the period of the HPSP. METHODS: We carried out three household surveys (1999, 2000 and 2003) of a stratified random sample of 217 rural sites and 30 urban sites. Each site comprised 100–120 contiguous households. Each survey included interviews with 25,000 household respondents and managers of health facilities serving the sites, and gender-stratified focus groups in each site. We measured: household ratings of government health services; reported use of services in the preceding month; unmet need for health care; user reports of waiting times, payments, explanations of condition, availability of prescribed medicines, and satisfaction with service providers. RESULTS: Public rating of government health services as "good" fell from 37% to 10% and the proportion using government treatment services fell from 13% to 10%. Unmet need increased from 3% to 9% of households. The proportion of visits to government facilities fell from 17% to 13%, while the proportion to unqualified practitioners rose from 52% to 60%. Satisfaction with service providers' behaviour dropped from 66% to 56%. Users were more satisfied when waiting time was shorter, prescribed medicines were available, and they received explanations of their condition. CONCLUSION: Services have retracted despite increased investment and the public now prefer unqualified practitioners over government services. Public opinion of government health services has deteriorated and the reforms have not specifically helped the poorest people. User satisfaction could be increased if government doctors improved their interaction with patients and if waiting times were reduced by better management of facilities

    Sustainable Antibiotic-Free Broiler Meat Production: Current Trends, Challenges, and Possibilities in a Developing Country Perspective

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    Antibiotic-free broiler meat production is becoming increasingly popular worldwide due to consumer perception that it is superior to conventional broiler meat. Globally, broiler farming impacts the income generation of low-income households, helping to alleviate poverty and secure food in the countryside and in semi-municipal societies. For decades, antibiotics have been utilized in the poultry industry to prevent and treat diseases and promote growth. This practice contributes to the development of drug-resistant bacteria in livestock, including poultry, and humans through the food chain, posing a global public health threat. Additionally, consumer demand for antibiotic-free broiler meat is increasing. However, there are many challenges that need to be overcome by adopting suitable strategies to produce antibiotic-free broiler meat with regards to food safety and chicken welfare issues. Herein, we focus on the importance and current scenario of antibiotic use, prospects, and challenges in the production of sustainable antibiotic-free broiler meat, emphasizing broiler farming in the context of Bangladesh. Moreover, we also discuss the need for and challenges of antibiotic alternatives and provide a future outlook for antibiotic-free broiler meat production

    Miller Fisher Variant of Guillain-Barré Syndrome: A Case Report & Clinical Review

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    Miller Fisher syndrome (MFS) is an uncommon variant of Guillain-Barré syndrome (GBS). It is characterized by external ophthalmoplegia, ataxia, and areflexia. The incidence of MFS as a proportion of GBS was reported to be 1 to 5 % in western countries and considerably higher in Eastern Asia i.e. 19% in Taiwan and 25% in Japan. Here we report the clinical features of a patient who initially presented with ataxia then subsequently developed limb weakness, areflexia and ophthalmoplegia. CSF study and NCV study supported our clinical diagnosis. Patient was managed conservatively. No intravenous immunoglobulin was given but the patient gradually improved in symptoms including power, ataxia, ophthalmoparesis. After one month the patient was discharged from hospital with complete recovery.DOI: http://dx.doi.org/10.3329/bsmmuj.v5i1.11028 BSMMU J 2012; 5(1):69-71

    Coronavirus disease 2019 and future pandemics: Impacts on livestock health and production and possible mitigation measures

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    The World Health Organization declared coronavirus disease 2019 (COVID-19) a pandemic on March 11, 2020. COVID-19, the current global health emergency, is wreaking havoc on human health systems and, to a lesser degree, on animals globally. The outbreak has continued since the first report of COVID-19 in China in December 2019, and the second and third waves of the outbreak have already begun in several countries. COVID-19 is expected to have adverse effects on crop production, food security, integrated pest control, tourism, the car industry, and other sectors of the global economy. COVID-19 induces a range of effects in livestock that is reflected economically since human health and livelihood are intertwined with animal health. We summarize the potentially harmful effects of COVID-19 on livestock and possible mitigation steps in response to this global outbreak. Mitigation of the negative effects of COVID-19 and future pandemics on livestock requires the implementation of current guidelines

    Malware Phylogeny Generation using Permutations of Code

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    Malicious programs, such as viruses and worms, are frequently related to previous programs through evolutionary relationships. Discovering those relationships and constructing a phylogeny model is expected to be helpful for analyzing new malware and for establishing a principled naming scheme. Matching permutations of code may help build better models in cases where malware evolution does not keep things in the same order. We describe method for constructing phylogeny models that uses features called n-perms to match possibly permuted code. An experiment was performed to compare the relative effectiveness of vector similarity measures using n-perms and n-grams when comparing permuted variants of programs. The similarity measures using n-perms maintained a greater separation between the similarity scores of permuted families of specimens versus unrelated specimens. A subsequent study using a tree generated through suggests that phylogeny models based on may help forensic analysts investigate new specimens, and assist in reconciling malware naming inconsistencies
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