508 research outputs found

    Study of SMS security as part of an electronic voting system

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    This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Computer Science and Engineering, 2006.Cataloged from PDF version of thesis report.Includes bibliographical references (page 48).E-voting is a new technology in voting system. Recently it was experimented in UK. Basically, this system is proposed to work via Short Message System (SMS). Using secure messaging system we are trying to develop the e-voting system here in our country. Our goal is to develop a system, which will be able to send SMS from a registered cell phone to a server located in the base polling station and cast a vote for a voter. The system must be secured so that while voting, no outside interference can be made to change the vote. So, there will be no tension of casting false vote. By the help of this system our voters will be able to cast their votes in a secure way and also the results will be available immediately when the vote casting finishes. This is going to be a pioneer change in our voting system. Some work on this proposed system has already been done. We wish to carry out the proposed system into further details. That is security aspects and implementation.B. Computer Science and Engineerin

    Effects of different animal manures on yield quality and nutrient uptake by Mustard CV. Agrani

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    A pot experiment was carried out at the researcher’s net house of Bangladesh Agricultural University, Mymensingh from November 2003 to February 2004 to find out the effects of different animal manure on yield, quality and nutrient uptake by mustard cv. Agrani. The experiment comprised of two levels of cage system poultry manure, deep litter system poultry manure, cow dung and bio-gas slurry viz. 10 and 20 ton ha-1, one control and one chemical fertilizer @ recommended dose. Cage system poultry manure @ 20 ton ha-1 significantly increased the seed and straw yield of mustard and cow dung showed lower performance. In straw and seed the highest uptake of N, P, K, Ca, Mg and S was obtained from cage system poultry manure @ 20 ton ha-1. Protein and oil content was also found higher in this treatment. Seed yield was found to be significantly and positively correlated with branch and effective pod per plant. Protein and oil contents of mustard seeds were increased with increasing level of animal manures though their effects were not significant. A positive and significant correlation was observed between protein and oil contents of mustard cv. Agrani. The overall results suggest that cage system poultry manure @ 20 ton ha-1 gave best performance among the parameters studied

    The impact of trade agreements on international business expansion, trade and investment in the European Union

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    The present research analyses the impact of EU trade agreements on international business expansion and foreign direct investment (FDI). The study examines five main agreements: CETA, EPA, EVFTA, EUSFTA and the EU–UK TCA, using a combination of descriptive analysis, OLS regression and Difference-in-Differences (DiD). Comparative Advantage Theory, New Trade Theory and Institutional Theory are the main theories that explain how to study both economic and institutional aspects. Although trade volumes increased under most agreements, the regression analysis did not show clear significance, probably because the yearly changes were not wide and the sample was small. Trade benefits were confirmed by DiD analysis for CETA, EPA and EUSFTA, but there was a decrease under TCA. The qualitative results point out problems with institutions, barriers faced by SMEs and uneven enforcement. The study provides specific suggestions for improving how regulations are applied, including SMEs, digital trade and sustainability in future EU trade deals. Thus, the findings showed that trade agreements help the economy grow, but their benefits for firms depend on strong institutions, similar regulations and inclusive ways of implementing mechanisms

    Active Physical Practice Followed by Mental Practice Using BCI-Driven Hand Exoskeleton: A Pilot Trial for Clinical Effectiveness and Usability

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    Appropriately combining mental practice (MP) and physical practice (PP) in a post-stroke rehabilitation is critical for ensuring a substantially positive rehabilitation outcome. Here we present a rehabilitation protocol incorporating a separate active PP stage followed by MP stage, using a hand exoskeleton and brain-computer interface (BCI). The PP stage was mediated by a force sensor feedback based assist-as-needed control strategy, whereas the MP stage provided BCI based multimodal neurofeedback combining anthropomorphic visual feedback and proprioceptive feedback of the impaired hand extension attempt. A 6 week long clinical trial was conducted on 4 hemiparetic stroke patients (screened out of 16) with left hand disability. The primary outcome, motor functional recovery, was measured in terms of changes in Grip-Strength (GS) and Action Research Arm Test (ARAT) scores; whereas the secondary outcome, usability of the system, was measured in terms of changes in mood, fatigue and motivation on a visual-analog-scale (VAS). A positive rehabilitative outcome was found as the group mean changes from the baseline in the GS and ARAT were +6.38 kg and +5.66 accordingly. The VAS scale measurements also showed betterment in mood (-1.38), increased motivation (+2.10) and reduced fatigue (-0.98) as compared to the baseline. Thus the proposed neurorehabilitation protocol is found to be promising both in terms of clinical effectiveness and usability

    Critical Study of Ready-Made Garments (RMG) Industry in Bangladesh

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    The success of readymade garment exports from Bangladesh over the past two decades has surpassed the most optimistic expectations. This dissertation reviews the literature on this industry, presents recent data on the sector's performance, and evaluates future trends in the international and domestic clothing industry. RMG sector plays a pivotal role in the economy of Bangladesh. There are about 2800 garment factories in the country employing 1.5 million workers. The Study was conducted with the following six aims, which are discussed briefly in the literature review: 1. Production of Textile; 2. Bangladesh Garment Manufacturers and Exporters’ Association (BGMEA); 3. BGMEAs Contribution to the Society and Industry; 4. More contribution of BGMEA; 5. Certain unrest in the Textile Industry in Bangladesh; 6. Some emerging issues in the textile industry in Bangladesh; 7. Competition between Bangladesh and Other Exporting Countries; 8. Assess the Domestic supply for the production; 9. Different setbacks faced in production; 10. Textile Quota removal by WTO, its impact on Bangladesh. The research aims shows that what are the flaws that could be cured to provide better scopes, which would help the industry to grow more widely, and help in the welfare of the country’s economy

    LMFLOSS: A Hybrid Loss For Imbalanced Medical Image Classification

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    Automatic medical image classification is a very important field where the use of AI has the potential to have a real social impact. However, there are still many challenges that act as obstacles to making practically effective solutions. One of those is the fact that most of the medical imaging datasets have a class imbalance problem. This leads to the fact that existing AI techniques, particularly neural network-based deep-learning methodologies, often perform poorly in such scenarios. Thus this makes this area an interesting and active research focus for researchers. In this study, we propose a novel loss function to train neural network models to mitigate this critical issue in this important field. Through rigorous experiments on three independently collected datasets of three different medical imaging domains, we empirically show that our proposed loss function consistently performs well with an improvement between 2%-10% macro f1 when compared to the baseline models. We hope that our work will precipitate new research toward a more generalized approach to medical image classification

    Hygiene management of adolescent female students with disabilities in the special schools of Bangladesh

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    Adolescent females with disabilities encounter difficulties in upholding self-hygiene, sanitation, and menstrual health management on a global scale. This study aims to investigate the hygiene management among female students with disabilities in special schools in Bangladesh. This study has utilized qualitative research methodology, specifically employing in-depth interviews to gather data. A sample group of 32 special educators from various regions of the country were chosen as participants for this study. The study has identified numerous critical factors that are crucial in addressing the overall hygiene management of special schools in Bangladesh including hygiene supplies, infrastructural facilities, hygiene management, staff training, and instructional approaches for students. Furthermore, significant disparities are seen in hygiene management practices when comparing rural and urban schools. These findings indicate areas of improvements in hygiene management and can serve as a guide for stakeholders in refining education policy to promote inclusivity as well as to achieve SDG 6 goals

    Knowledge, Attitudes and Practices (KAP) Towards COVID-19 and Importance of Hand Hygiene: A Cross-Sectional Study.

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    BACKGROUND: Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has accursed the world since December 2019 when it was first diagnosed in Wuhan, China. As it quickly spread to almost all the corners of the world, WHO later declared it as a global pandemic. Effective non-pharmaceutical measures to control it depend upon the knowledge and practice of basic principles of hygiene and the use of facemasks. Hence educating the public about it has an immense role in controlling this contagious disease. MATERIAL AND METHODS: This cross-sectional study was conducted in Chittagong from June 2020 to December 2020 with a study population of 1489 participants. Adults with a good physical and mental condition and those who agreed to participate were included while unwilling and sick people were excluded from the study. RESULTS: Out of 1489 participants, the mean age was 28.81±8.64 years with a range from 12 to 70 years. More than half (51%) of the participants were females and about 773(51.9%) participants completed above X education level. Knowledge about the disease, its causative agent, main symptoms, ultimate fate, and its mode of transmission was considerably high. The majority of the participants were accustomed to preventive measures such as social distancing, isolation of the patients, home quarantine, and avoidance of large gatherings. Knowledge directly affected both attitudes and practices as the survey revealed that the majority (91-89%) of the participants achieved a good knowledge-attitude score and 83.75% achieved a good knowledge-practice score. Overall achieved knowledge score regarding the importance of hand hygiene translated on attitude and practices. CONCLUSION: Our findings insinuated that the Bangladeshi population substantiated a decent knowledge about COVID-19 and knowledge about hand hygiene was above par and that too translated on attitude and practices. Hence widespread targeted health education program that incorporates considerations of KAP modifying factors is further needed to prevent subsequent waves of the infection
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