Climate change and its risk reduction by mangrove ecosystem of Bangladesh

Climate change is amongst the most dreaded problems of the new millennium. Bangladesh is a coastal country bounded by Bay of Bengal on its southern part and here natural disasters are an ongoing part of human life. This paper discusses about the possible impact of climate change through tropical cyclones, storm surges, coastal erosion and sea level rise in the coastal community of Bangladesh and how they cope with these extreme events by the help of mangrove ecosystem. Both qualitative and quantitative discussions are made by collected data from different research work those are conducted in Bangladesh. Mangrove ecosystem provides both goods and services for coastal community, helps to improve livelihood options and protect them from natural disaster by providing variety of environmental suppor

Future Importance of Maritime Activities in Bangladesh

Blue Economy is a concept of economic growth through the sustainable utilization of ocean resources with technological inputs to improve livelihoods and meet the growing demands for jobs without hampering the health of the ocean ecosystem. This paper offers an overview of current maritime key activities, major trends and scenarios, future blue economy development activities with economic and social importance, ecological importance and blue economy policy framework. This paper also focuses on the major constraints and challenges. The current maritime key activities include extraction of living and non-living resources, land based activities, trades and transportation, shipbuilding and ship breaking, tourism and recreation, man-made structures, energy production and, research and survey. The trend data show that the total fish landing and total export income from fisheries has increased over time. However, data on mangrove revenue suggest that in recent years, current revenues from this forest are comparatively less than they were in the 1980s and the 1990s. To expand its Blue Economy, Bangladesh must focus on marine fisheries, non-traditional species, marine biotechnology, oil gas and mineral mining, renewable energy, marine trade and transport, marine tourism and marine spatial planning. However, this paper finds that lack of implementation and enforcement, of management measures, limited planning and coordination are hinder the development of Blue Economic in Bangladesh. Thus a strategic management process integrating multiple stakeholders urgently needed for a sustainable Blue Economy maritime territory of Bangladesh

Blue Economy and Climate Change: Bangladesh Perspective

Blue Economy is related to economic growth through the sustainable utilization of ocean resources with technological inputs to improve livelihoods. Economically important coastal and marine resources are the main components of the Blue Economy for Bangladesh. These resources are categorized into living, non-living, renewable resources and trade and commerce. As Bangladesh is vulnerable to climate change, related extreme events are making the coastal and marine resources vulnerable which may hamper the smooth Blue Economy development in Bangladesh. Climate change extreme events include warming trend, cyclone, sea level rise, droughts, erosion, tidal surge, saline water intrusion, flood, change in precipitation trend and ocean acidification. These extreme events may cause coral belching, species migration, biodiversity loss, altered species life style, disruption in marine food chain and ultimately will affect the national economy. Thus, it is a prime need to build marine ecosystem’s resilience to climate change to get the maximum benefits from ocean. This background paper offers a strategic framework for climate change resilient Blue Economy practice in Bangladesh. This framework is a four steps process (i.e. identification of issues, focus on important areas for climate change resilient Blue Economy development, performing activities for achieving the goal and achievement of goal). Special focus is required on energy efficiency, marine and coastal biodiversity, ecosystem based adaptation, environmental resilience building in the coastal areas, ecosystem restoration, building economic resilience and policy formulation for climate change resilient Blue Economy development. Mangrove plantation, oyster reef building, mussel bed, sea grass bed, salt marsh bed and coral reef conservation, use of renewable energy, special interventions in fisheries and development of islands, crop insurance, salt tolerant and floating agriculture, eco-tourism development, MPA and ecologically critical area declaration, marine spatial planning, policy formulation, institutional integration and continuous ocean monitoring are example of some possible interventions required for climate resilient Blue Economy development in Bangladesh

A VALIDATED STABILITY INDICATING RP-HPLC METHOD FOR ESTIMATION OF AVAPRITINIB IN BULK AND TABLET DOSAGE FORM

Objective: The present investigation aims to develop a simple, cost effective, and reliable stability-indicating RP-HPLC assay method for analysis of avapritinib in bulk and the tablet dosage form. Methods: The method was developed using Acetonitrile and Methanol in a ratio of 70:30 (v/v) as the mobile phase, flowing at a rate of 1 ml/min, in an isocratic mode. A reverse phase column (Symmetry C18 column, 250 mm x 4.6 mm, 5 µm) was used as the stationary phase. The detection of the compound was made using a UV detector set at 245 nm. The validation and force degradation studies of the method were done following the International Conference on Harmonization (ICH) guidelines. Results: The method was validated using the prescribed parameters like system suitability, LOD, LOQ, accuracy, precision, robustness, specificity etc. The relative standard deviation (% RSD) of the peak area observed in each case was found within the accepted range (< 2%). The tailing factor and the plate count were found to be less than 2 and more than 2000 respectively in each observation.  The coefficient of correlation (r2) value in the linearity study was found to be 0.9997. The drug was found to be quantified accurately in presence of its degraded products. Conclusion: The developed simple and economic method is a suitable option for the qualitative and quantitative study of avapritinib in bulk and tablets even in presence of its degraded products which may arise because of oxidation, hydrolysis, thermal and photolytic decomposition

Foundations of Migration from the Disaster Consequences Coastal Area of Bangladesh

In Bangladesh the most crucial impact of climate change will result in the migration of the people from coastal areas to all over the country.  Increases in the frequency and severity of chronic environmental hazards and sudden onset disasters are projected to alter the typical migration patterns of different communities. The relationship between climate change and human security is not necessarily direct, but depends on a chain of consequences. This paper deals with the migration patterns of disaster affected coastal areas of Bangladesh. Life of coastal community is experienced with multiple vulnerabilities due to natural disasters. A questionnaire survey was done with 49 randomly selected people to identify the determinants of migration in the study area. Natural disasters were the most frequently cited cause of insecurity in a household survey undertaken for the present study. Other environmental problems such as riverbank erosion and the loss of natural resources were also recorded as significant challenges. The collected data then were analyzed by computer based software SPSS. Findings show that erosion and cyclone are strongly related with migration in the study area where flood, tornado and drought have no strong influence for that so called “ climate change refugees”. Keywords: Climate change, human security, migration pattern, natural disaster, natural resources, climate change refugees

Association between Glycemic Control and Serum Lipid Profile in type 2 Diabetic Patients: Experience in a Medical College Hospital

Impaired lipid metabolism in diabetic patients can lead to cardiovascular complications. Poor glycaemic control is associated with a significant increase in the risk of both patient’s morbidity and mortality. An early intervention to regulate circulating lipids has been found to lower the risk of cardiovascular problems and death. Glycated hemoglobin (HbA1c) is a reliable indicator of rising blood sugar levels. This hospital based observational study was conducted in the Department of Medicine, Sher-E-Bangla Medical College Hospital, Barisal from October 2014 to March 2015 over a period of 6 month to determine the correlation of glycemic control and lipid profile in patients with type 2 diabetes. A total of 110 type 2 diabe- tes mellitus(DM) patients of both sexes admitted to the Deapartment of Medicine of Sher-E- Bangla Medical College Hospital, Barisal, were recruited for this study. Following standard procedures and protocols, fasting blood sugar (FBS), blood sugar two hours after breakfast, Glycosylated Hemoglobin (HbA1c) and fasting lipid profile were measured. The age of respondents ranged from 34 to 70 years with the mean age of 54.35}8.02 years. Among the patients male were 70 (63.6%) and female were 40 (36.4%). Mean age at diagnosis of DM and duration of DM was 47.07}6.03 years and 7.27}3.41 years, respectively. Mean body mass index (BMI), FBS and HbA1c were 25.02}5.22 kg/m2, 8.06}2.01 mmol/L and 8.34}1.9 % respectively. Significant positive correlation of HbA1c and FBS with BMI, total cholester- ol(TC), triglyceride(TG), low density lipoprotein(LDL-C) and negative correlation with high density lipoprotein (HDL-C) was found. Significantly higher TC, TG and LDL-C and lower HDL-C were found in poor glycemic control (HbA1c ≥ 7) group than good glycemic control (HbA1c < 7 ) group. The results of this study showed that , higher levels of glycemic parame- ters are significantly associated with dyslipidemia. These findings also indicate that HbA1c can be utilized for screening of high risk diabetic patients for early diagnosis of dyslipidemia and timely intervention with lipid lowering drugs. BSMMU J 2021; 14(4): 138-14

OPENMODS 2.0 “Instrument Jamming Meeting” report

Major achievements The feedback provided by potential users on their needs was very much appreciated. They underlined the importance of having: ● an easy to deploy instrument (i.e.: from small fishing boats); ● multi-parameter sensors in ONE device; ● less maintenance effort and prioritized the variables to measure. Although, there are technical limitations and different solutions and there is no one tool that can do everything, which is low cost, has high resolution and low maintenance, the outcomes of the platforms/sensors/communications working group meet the main requirements that emerged. Priority was given to: ● a platform that will operate in drifter mode which is extremely easy to deploy and perfect for studies associated with search and rescue operations (another need that has emerged). It also constantly guarantees the knowledge of the instrument position. The platform can be easily converted into the moored mode. ● temperature and pressure sensors. The sensors will be low -cost with the idea to replace them rather than calibrate them; ● LoRaWAN communications preferably with Bluetooth integration for the in-situ download of the data