1,226 research outputs found

    Monsoon Tourism: A New Aspiration for Bangladesh Tourism Industry

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    From the very past Bangalees are highly attached with the monsoon season and much influenced by the beauty of the rainy season. So we find a touch of the season in our every occasion and festivals. Most of the countries of the world are deprived from the blessings and beauty of the monsoon climate. So, every year lots of tourists from different countries (like Norway, Germany, Switzerland, Russia) come to visit different countries which are blessed by monsoon climate. They also come to visit Bangladesh. Like other seasons the rainy season of Bangladesh is also very suitable for the interested visitors. So, in this article we have tried to conduct a descriptive research to represent the current scenario with the emphasis on future impact of Monsoon tourism for the development of Bangladeshi tourism sector. Our research is based on both qualitative and quantitative data which we have collected from various sources like websites, articles, journals, etc.  Throughout our study we mainly try to focus on the future of Bangladesh tourism sector by introducing new phenomena monsoon tourism. Keywords: monsoon, tourism, tourist, Bangladesh, Bay of Bengal, Cox’s Bazar, rainy season

    Novel Examination of Interpretable Surrogates and Adversarial Robustness in Machine Learning

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    The lack of transparent output behavior is a significant source of mistrust in many of the currently most successful machine learning tools. Concern arises particularly in situations where the data generation changes, for example under marginal shift or under adversarial manipulations. We analyze the use of decision trees (a human interpretable model) for indicating marginal shift. We then investigate the role of the data generation for the validity of the interpretable surrogate and its implementation as both local and global interpretation methods. We often observed that the decision boundaries of the blackbox model was mostly sitting close to the original data manifold. This makes those regions vulnerable to imperceptible perturbations. Hence, we carefully argue that adversarial robustness should be defined as a locally adaptive measure complying with the underlying distribution. We then suggest a definition for an adaptive robust loss, an empirical version of it and a resulting data-augmentation framework

    Archaeological and Historical Tourism: An Emerging Dimension for the Tourism Industry of Bangladesh

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    Bangladesh emerges as a popular tourist destination for her natural heritage, beautiful coasts and beaches, archeological remains, historical and religious places, hills and islands, forests and jungles and attractive countryside with inestimable water bodies and green fields of agriculture. These valuable natural and cultural heritages are major parts of our tourism industry. Every year, many nature loving people visit here and contribute a major part in our national economy. So, Bangladesh has many things to offer to our precious visitors, but Archaeological and historical tourism in Bangladesh, as a fragment of the larger tourism industry, can be the major contributor to total tourism earnings. “Foreign tourists who come to Bangladesh, like to enjoy archaeological and historical places first, while their second choice is scenic beauty” (Ali & Parvin, 2010). Keywords: Archaeology, Bangladesh, History and Tourism

    Environmental Performance Index and GDP growth rate: evidence from BRICS countries

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    BRICS countries have experienced rapid economic growth and played a vital role in the world economy because of their capacity to produce large number of manufacturing products, supplies of raw materials, natural resources and the advantage of geographical locations and demographic attributes. Extremely speedy process of industrialization process has been acting as one of the key driving forces for rapid economic growth. According to the IAEA, coal use in India and China will more than double by 2050. To achieve high economic growth, these countries are facing severe environmental problem. India and China were the top two nations with largest total ecological footprints in 2003. Research question of the study is whether relationship between Environmental Performance Index and GDP growth rate in BRICS countries prevails? The study used secondary sources. The study used a sample of five emerging developing countries (BRICS) namely Brazil, Russia, India, China and South Africa. This study examined Environmental Performance Index (EPI) and GDP trends. Based on the collected data covering the period of 2002 to 2016, the analysis indicates that there is a negative relationship between GDP growth rate and Environmental Performance index. However, the study observed that strong correlation between EPI and GDP growth rate except Russia did not prevail. National accounting procedure should include environmental impact which needs to be addressed by the policy makers as suggested by authors

    Evaluation of Oral Health Status Among Pregnant Women Using Oral Hygiene Index- Simplified (OHI-S) Score

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    Background: Oral health of women is often neglected during pregnancy. We need to address this issue in a developing country’s perspective, as oral healthcare is not an integral part of antenatal protocols. Objective: To evaluate the oral health status of pregnant women using the Oral Hygiene Index-Simplified (OHI-S) Score as well as explore oral hygiene practice by them and conduct a mini-assessment of their knowledge of oral health. Methods: This cross-sectional, descriptive study was conducted using data by using a semi-structured questionnaire among 170 pregnant women attending an antenatal center in Dhaka city, Bangladesh, from March to August 2018. A pre-tested semi-structured questionnaire containing OHI-S index was used for data collection. Dental mirror and probe were used for oral hygiene assessment. Results: The mean age of the participants was 24.22±5.07 years. 140(82.4%) were found to use toothbrushes as a tooth-cleaning aid and 146(85.9%) used toothpaste as a tooth cleaning material. Among them, 132(94.3%) were found to brush at least once a day. The predominant health problems identified by clinical examination among those pregnant women were gum bleeding, mild to severe periodontitis, halitosis (bad breath), and loose teeth. The majority did not know the safe period of dental treatment and the consequences of having poor oral health during pregnancy. The overall oral hygiene status of the maximum pregnant women was ‘Fair’ (50.6%) (OHI-S score 0-1.2), while 39.4% had ‘Poor’ oral hygiene status (OHI-S score 1.3-3.0) and only 10% had ‘Good’ oral hygiene status (OHI-S score 3.1-6.9). Conclusion: Pregnant women in Bangladesh suffer from various oral health issues during pregnancy; however, they exhibit that they do not address this issue due to a lack of awareness and other factors. Hence, it is crucial to plan and implement effective oral health programs for pregnant women all over the countr

    Immunofluorescence pattern of antinuclear antibody and its association with autoantibody profile in systemic lupus erythematosus

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    Background: Antinuclear antibody (ANA) is useful in the diagnosis of systemic lupus erythematosus (SLE). Association of specific autoantibodies with the immunofluorescence pattern of ANA in SLE as noted in Western literature has been taken as reference in all over the world. However, in Bangladesh such research work or data correlating the autoantibodies and their ANA patterns is inadequate. Objective: To identify an association between immunofluorescence patterns of antinuclear antibody on HEp-2 cell and more specific antinuclear reactivities (e.g. anti-dsDNA and anti-extractable nuclear antigen) in the serum samples of SLE patients.Methods: Serum samples of 37 SLE patients who were diagnosed by ARA (American Rheumatism Association) classification criteria and laboratory tests, attending at lupus clinic of Bangabandhu Sheikh Mujib Medical University (BSMMU) during the study period of six months were subjected for ANA testing by Indirect Imrnunofluorescence (IIF) on HEp-2 cell, anti-dsDNA by ELISA and anti- extractable nuclear antigen (anti-ENA) by Dot Immunoblot. Dot blot strips were tested for anti-Sm, anti-RNP, anti-SSA/Ro, and anti-SSB/La. Results: Out of 37 SLE patients 32 (86.5%) cases were ANA positive by IIF on HEp-2 cell. ANA positive sera exhibited three fluorescence patterns such as speckled (43.7%), peripheral (34.3%) and homogenous pattern (21.8%). Peripheral pattern (100%) was strongly associated with anti-dsDNA (p<0.05) and homogenous pattern (85.7%) was also predominantly associated with anti-dsDNA (p<0.05). Speckled pattern (85.6%) was significantly associated with anti-ENA (p<0.05). Anti-dsDNA was positive in 75% of SLE cases and majority (45.8%) of which showed peripheral pattern whereas anti-ENA was positive in 48.6% cases and majority (70.5%) of which showed speckled pattern. The most commonly identified antinuclear autoreactivity was directed towards anti-RNP (22.2%) then anti-Sm (16.6%), anti-SSA (16.6%) and anti-SSB (11.1 %). Multiple anti-ENA reactivities were identified in 33.3% cases. Conclusion: Peripheral and homogenous pattern is strongly associated with anti-dsDNA therefore may be predicted that patients have active SLE and speckled pattern may predict anti-ENA (specially ribonucleoprotiens). Thus, ANA-IIF method may suffice and probably reduce the expense of detailed immunological work-up with minimal loss in diagnostic accuracy

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    Background: Oral health of women is often neglected during pregnancy. We need to address this issue in a developing country's perspective,as oral healthcare is not an integral part of antenatal protocols. Objective: To evaluate the oral health status of pregnant women using the Oral Hygiene Index-Simplified (OHI-S) Score as well as explore oral hygiene practice by them and conduct a mini-assessment of their knowledge of oral health. Methods: This cross-sectional, descriptive study was conducted using data by using a semi-structured questionnaire among 170 pregnant women attending an antenatal center in Dhaka city, Bangladesh, from March to August 2018. A pre-tested semi-structured questionnaire containing the OHI-S index was used for data collection. Dental mirror and probe were used for oral hygiene assessment. Results: The mean age of the participants was 24.22±5.07 years. 140(82.4%) were found to use toothbrushes as a tooth-cleaning aid and 146(85.9%) used toothpaste as a tooth cleaning material. Among them, 132(94.3%) were found to brush at least once a day. The predominant health problems identified by clinical examination among those pregnant women were gum bleeding, mild to severe periodontitis, halitosis (bad breath), and loose teeth. The majority did not know the safe period of dental treatment and the consequences of having poor oral health during pregnancy. The overall oral hygiene status of the maximum number of pregnant women was 'Fair' (50.6%) (OHI-S score 0-1.2), while 39.4% had 'Poor' oral hygiene status (OHI-S score 1.3-3.0) and only 10% had 'Good' oral hygiene status (OHI-S score 3.1-6.9). Conclusion: Pregnant women in Bangladesh suffer from various oral health issues during pregnancy; however, they exhibit that they do not address this issue due to a lack of awareness and other factors. Hence, it is crucial to plan and implement effective oral health programs for pregnant women all over the country

    Knowledge and Practice of Oral Health and Hygiene and Oral Health Status among School Going Adolescents in a Rural Area of Sylhet District, Bangladesh

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    A cross-sectional, descriptive study was done at a rural high school in Zakiganj Upazila of Sylhet District, Bangladesh, between January and December of 2014, to determine knowledge and practice of oral health and hygiene and oral health status among school going adolescents. Students from three classes: class VIII, IX and X, and aged 12-16 years were taken for the study. Study samples were collected by using simple random sampling technique. A total of 90 students were divided into two age groups: 12-14 years and 15-16 years. A pre-designed, self-administered questionnaire was used for demographic survey and knowledge of oral health and hygiene (a 10-point questionnaire) and practice (a 7-point questionnaire). Then a plane mouth mirror and periodontal probe was used for examining oral health status in those school children. Oral hygiene status was measured by simplified Green and Vermillion Oral Hygiene Index. The mean age of the respondents was 14.37±0.50 years. Females were 68 (75.6%) and males were 22 (24.4%). 31 (34.4%) were from class VIII, 30 (33.3%) from class IX and 29 (32.2%) were from class X. 33.3% of the respondents have scored below the mean of the total knowledge score while 66.7% has scored above the mean (6.86±2.05). Pearson’s correlation coefficient (+0.342) revealed that an increase in knowledge score would lead to increase in practice score. The younger group had higher mean knowledge score than older group (7.15+1.35 vs. 6.58+2.54; P=0.017); however, no significant difference was found between males and females (6.90±1.74 vs. 6.85±2.15; P=0.432). There was no significant difference in Debris Index (DI), Calculous Index (CI) and Oral Health Index (OHI) scores in between age groups and genders. On educational status, significant difference was observed only in OHI score (P=0.001) among those three classes of students. Overall, only 31% had good oral hygiene, while 59% respondents had fair and 10% had poor oral hygiene status
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