22 research outputs found

    Effect of Women Empowerment on Family Life: Perception of Husband and Wife

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    Women empowerment is considered as the powerhouse of global development. This study attempted to explore the perception of husband and wife regarding the effects of women empowerment on family life. The research was conducted at three upazila of Khulna district, Bangladesh. Data were collected from purposively selected ninety (90) respondents using a structured questionnaire during January 2023. The focus variable named as effect of women empowerment on family life was measured using a 5-point rating scale. Results indicated that, education is the key factor of enhancing women empowerment. The findings exposed that almost two-third (64.4%) of the male respondents perceived medium effect of women empowerment on family life while majority of the female counterparts (60%) perceived high effect respectively. However, majority (95.6%) of the male respondents opined that women empowerment generate more income to the family whereas most (98.3%) of the female respondents agreed that women empowerment is very effective in giving decision making power. It was found that respondents’ age, educational qualification, organizational participation, training exposure, cosmopolitanism, knowledge, and attitude demonstrate significant relationship with the focus variable. It is high time to change our attitude towards women empowerment for overall development of the world

    Detection and Enumeration of Bacterial Pathogens in the American Oyster (Crassostrea virginica)

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    American oyster (Crassostrea virginica) is a popular seafood for its delicacy and high nutritional value. Based on increasing concern about contamination of bacterial pathogens in raw oyster, my research objectives have been focused on detection and enumeration of two important bacterial pathogens, Escherichia coli and Salmonella spp. in the American oyster in south Texas waters, local markets and controlled laboratory studies. Immunohistochemical and RT-PCR analyses showed substantial bacterial pathogen’s presence in gills and digestive glands of oysters collected from San Martin Lake and South Padre Island as well as local markets. Laboratory studies showed increasing trend of both bacterial pathogens with elevated temperatures (28 and 32 °C) compared to control (24 °C). Extrapallial fluid, an important body fluid, glucose levels, pH, and protein concentration varied in oysters and appeared to be pertinent with pathogen intensity. Collectively, these results suggest that American oyster is prone to water-borne pathogen contamination in south Texas waters

    Effects of elevated temperature on 8-OHdG expression in the American oyster (Crassostrea virginica): Induction of oxidative stress biomarkers, cellular apoptosis, DNA damage and γH2AX signaling pathways

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    Global temperature is increasing due to anthropogenic activities and the effects of elevated temperature on DNA lesions are not well documented in marine organisms. The American oyster (Crassostrea virginica, an edible and commercially important marine mollusk) is an ideal shellfish species to study oxidative DNA lesions during heat stress. In this study, we examined the effects of elevated temperatures (24, 28, and 32 °C for one-week exposure) on heat shock protein-70 (HSP70, a biomarker of heat stress), 8-hydroxy-2’-deoxyguanosine (8-OHdG, a biomarker of pro-mutagenic DNA lesion), double-stranded DNA (dsDNA), γ-histone family member X (γH2AX, a molecular biomarker of DNA damage), caspase-3 (CAS-3, a key enzyme of apoptotic pathway) and Bcl-2-associated X (BAX, an apoptosis regulator) protein and/or mRNA expressions in the gills of American oysters. Immunohistochemical and qRT-PCR results showed that HSP70, 8-OHdG, dsDNA, and γH2AX expressions in gills were significantly increased at high temperatures (28 and 32 °C) compared with control (24°C). In situ TUNEL analysis showed that the apoptotic cells in gill tissues were increased in heat-exposed oysters. Interestingly, the enhanced apoptotic cells were associated with increased CAS-3 and BAX mRNA and/or protein expressions, along with 8-OHdG levels in gills after heat exposure. Moreover, the extrapallial (EP) fluid (i.e., extracellular body fluid) protein concentrations were lower; however, the EP glucose levels were higher in heat-exposed oysters. Taken together, these results suggest that heat shock-driven oxidative stress alters extracellular body fluid conditions and induces cellular apoptosis and DNA damage, which may lead to increased 8-OHdG levels in cells/tissues in oysters

    The Socio-economic Status and Land Use Pattern: A Micro-level Analysis in Bangladesh

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    To investigate the micro level existing land use pattern, socio-economic status and differences between urban and rural land use pattern, the Dumuria upazila in Khulna district in Bangladesh has been selected. Total 340 samples have been taken through a questionnaire survey and the plot-to-plot survey was conducted on 2657 plots and about 267 acres to fulfill the objectives. This study demonstrates that land use pattern in both urban and rural areas was different due to various socio-economic factors. In urban areas, land use pattern was mainly dominated by residential or homestead use about 26% of land and a significant portion of land was occupied by the commercial and industrial use which is about 13% of the land. On contrary, rural area was dominated by wetlands and agricultural land (cropland and inter-culture) about 40% and 23% respectively. The study indicates that forest and woodland cover was relatively high in rural areas was about 15.39 acre out of 141 acre (11%) but it was only about 4% in urban areas. Moreover, this study reveals that the rural area was mostly covered with natural forest and woodland, on the contrary, urban area was mostly man-made. However, the findings of this study provide valuable information to support the sustainable development of urban and rural land use and planning processes and forecasting future possible land use changes on that locality

    Blockchain-Enabled Federated Learning Approach for Vehicular Networks

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    Data from interconnected vehicles may contain sensitive information such as location, driving behavior, personal identifiers, etc. Without adequate safeguards, sharing this data jeopardizes data privacy and system security. The current centralized data-sharing paradigm in these systems raises particular concerns about data privacy. Recognizing these challenges, the shift towards decentralized interactions in technology, as echoed by the principles of Industry 5.0, becomes paramount. This work is closely aligned with these principles, emphasizing decentralized, human-centric, and secure technological interactions in an interconnected vehicular ecosystem. To embody this, we propose a practical approach that merges two emerging technologies: Federated Learning (FL) and Blockchain. The integration of these technologies enables the creation of a decentralized vehicular network. In this setting, vehicles can learn from each other without compromising privacy while also ensuring data integrity and accountability. Initial experiments show that compared to conventional decentralized federated learning techniques, our proposed approach significantly enhances the performance and security of vehicular networks. The system's accuracy stands at 91.92\%. While this may appear to be low in comparison to state-of-the-art federated learning models, our work is noteworthy because, unlike others, it was achieved in a malicious vehicle setting. Despite the challenging environment, our method maintains high accuracy, making it a competent solution for preserving data privacy in vehicular networks.Comment: 7 page

    Mapping and monitoring erosion-accretion in an alluvial river using satellite imagery – the river bank changes of the Padma river in Bangladesh

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    The Padma river is widely known for its dynamic and disastrous behaviour, and the river has been experiencing intense and frequent bank erosion and deposition leading to the changes and shifting of bank line. In this paper, a time series of Landsat satellite imagery MSS, TM and OLI and TIRS images and are used to detect river bank erosion-accretion and bank line shifting during the study period 1975-2015. This study exhibits a drastic increase of erosion and accretion of land along the Padma river. The results show that from 1975 to 2015, the total amount of river bank erosion is 49,951 ha of land, at a rate of 1,249 ha a-1 and the total amount of accretion is 83,333 ha of land, at a rate of 2,083 ha a-1. Throughout the monitoring period, erosion-accretion was more pronounced in the right part of the river and bank line had been shifting towards the southern direction. The paper also reveals that the total area of islands had been increased significantly, in 2015 there was about 50,967 ha of island area increased from 20,533 ha of island area in 1975, and the results evidence consistency of sedimentation in the river bed

    Prosecuting Crimes against Humanity and Genocide at the International Crimes Tribunal Bangladesh: An Approach to International Criminal Law Standards

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    Bangladesh is recently prosecuting and punishing the perpetrators of crimes against humanity and genocide committed in the Liberation War of 1971 via a domestically operated tribunal, namely the International Crimes Tribunal Bangladesh (ICTB). Though the Tribunal is preceded under municipal law, its material jurisdiction, i.e., crimes against humanity and genocide, originated from international criminal law. Therefore, this study examines several legal obligations of the ICTB in defining crimes against humanity and genocide as the core international crimes. First, I discuss several legal flaws of the Tribunal by defining crimes against humanity and genocide under the ICTB Statute and jurisprudence. Second, I scrutinize the legal status of international (treaty and customary) laws in Bangladesh’s legal system. Third, by applying international criminal law standards, I focus on the idea that it is one of the obligations of Bangladesh to apply international criminal law definitions of genocide under the treaty obligation as the contracting parties to Genocide Convention 1948, and the ICC Statute 1998. Fourthly, I also discuss whether Bangladesh has any obligation to apply customary international law definition of crimes against humanity because crimes against humanity are considered jus cogens offenses in general international law, from which no derogation is permitted. Lastly, I conclude that Bangladesh Tribunal failed to fulfill its legal obligation to define international crimes under the treaty and customary laws and forward a way to be implemented to improve the legislative system of Bangladesh and harmonize it with international legislation

    Mapping and monitoring erosion-accretion in an alluvial river using satellite imagery – the river bank changes of the Padma river in Bangladesh

    No full text
    The Padma river is widely known for its dynamic and disastrous behaviour, and the river has been experiencing intense and frequent bank erosion and deposition leading to the changes and shifting of bank line. In this paper, a time series of Landsat satellite imagery MSS, TM and OLI and TIRS images and are used to detect river bank erosion-accretion and bank line shifting during the study period 1975-2015. This study exhibits a drastic increase of erosion and accretion of land along the Padma river. The results show that from 1975 to 2015, the total amount of river bank erosion is 49,951 ha of land, at a rate of 1,249 ha a-1 and the total amount of accretion is 83,333 ha of land, at a rate of 2,083 ha a-1. Throughout the monitoring period, erosion-accretion was more pronounced in the right part of the river and bank line had been shifting towards the southern direction. The paper also reveals that the total area of islands had been increased significantly, in 2015 there was about 50,967 ha of island area increased from 20,533 ha of island area in 1975, and the results evidence consistency of sedimentation in the river bed

    Mapping and Monitoring Erosion-Accretion in an Alluvial River Using Satellite Imagery – The River Bank Changes of the Padma River in Bangladesh

    No full text
    The Padma river is widely known for its dynamic and disastrous behaviour, and the river has been experiencing intense and frequent bank erosion and deposition leading to the changes and shifting of bank line. In this paper, a time series of Landsat satellite imagery MSS, TM and OLI and TIRS images and are used to detect river bank erosion-accretion and bank line shifting during the study period 1975–2015. This study exhibits a drastic increase of erosion and accretion of land along the Padma river. The results show that from 1975 to 2015, the total amount of river bank erosion is 49,951 ha of land, at a rate of 1,249 ha a−1 and the total amount of accretion is 83,333 ha of land, at a rate of 2,083 ha a−1. Throughout the monitoring period, erosion-accretion was more pronounced in the right part of the river and bank line had been shifting towards the southern direction. The paper also reveals that the total area of islands had been increased significantly, in 2015 there was about 50,967 ha of island area increased from 20,533 ha of island area in 1975, and the results evidence consistency of sedimentation in the river bed
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