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290 results on '"Billah, Md Masum"'

1. Foreign Capital and Economic Growth: Evidence from Bangladesh

Author

Salma, Ummya, Khan, Md. Fazlul Huq, and Billah, Md. Masum

Subjects
Economics - General Economics
Abstract

This study aims to examine the relationship between Foreign Direct Investment (FDI), personal remittances received, and official development assistance (ODA) in the economic growth of Bangladesh. The study utilizes time series data on Bangladesh from 1976 to 2021. Additionally, this research contributes to the existing literature by introducing the Foreign Capital Depthless Index (FCDI) and exploring its impact on Bangladesh's economic growth. The results of the Vector Error Correction Model (VECM) suggest that the economic growth of Bangladesh depends on FDI, remittances, and aid in the long run. However, these variables do not exhibit a causal relationship with GDP in the short run. The relationship between FCDI and economic growth is positive in the long run. Nevertheless, the presence of these three variables has a more significant impact on the economic growth of Bangladesh

Published
2023

5. Macroeconomic factors and Stock exchange return: A Statistical Analysis

Author

Khan, Md. Fazlul Huq and Billah, Md. Masum

Subjects
Economics - General Economics
Abstract

The purpose of this research is to examine the relationship between the Dhaka Stock exchange index return and macroeconomic variables such as exchange rate, inflation, money supply etc. The long-term relationship between macroeconomic variables and stock market returns has been analyzed by using the Johnson Cointegration test, Augmented Dicky Fuller (ADF) and Phillip Perron (PP) tests. The results revealed the existence of cointegrating relationship between stock prices and the macroeconomic variables in the Dhaka stock exchange. The consumer price index, money supply, and exchange rates proved to be strongly associated with stock returns, while market capitalization was found to be negatively associated with stock returns. The findings suggest that in the long run, the Dhaka stock exchange is reactive to macroeconomic indicators.

Published
2023

11. Estimation of negative membrane tension in lipid bilayers and its effect on antimicrobial peptide magainin 2-induced pore formation.

Author

Ahmed, Marzuk, Billah, Md. Masum, Tamba, Yukihiro, and Yamazaki, Masahito

Subjects
*ANTIMICROBIAL peptides, *MEMBRANE lipids, *CELL membranes, *MELITTIN, *PHYSIOLOGIC salines, *HYPERTONIC solutions, *BILAYER lipid membranes
Abstract

Positive membrane tension in the stretched plasma membrane of cells and in the stretched lipid bilayer of vesicles has been well analyzed quantitatively, whereas there is limited quantitative information on negative membrane tension in compressed plasma membranes and lipid bilayers. Here, we examined negative membrane tension quantitatively. First, we developed a theory to describe negative membrane tension by analyzing the free energy of lipid bilayers to obtain a theoretical equation for negative membrane tension. This allowed us to obtain an equation describing the negative membrane tension (σosm) for giant unilamellar vesicles (GUVs) in hypertonic solutions due to negative osmotic pressure (Π). Then, we experimentally estimated the negative membrane tension for GUVs in hypertonic solutions by measuring the rate constant (kr) of rupture of the GUVs induced by the constant tension (σex) due to an external force as a function of σex. We found that larger σex values were required to induce the rupture of GUVs under negative Π compared with GUVs in isotonic solution and quantitatively determined the negative membrane tension induced by Π (σosm) by the difference between these σex values. At small negative Π, the experimental values of negative σosm agree with their theoretical values within experimental error, but as negative Π increases, the deviation increases. Negative tension increased the stability of GUVs because higher tensions were required for GUV rupture, and the rate constant of antimicrobial peptide magainin 2-induced pore formation decreased. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Correction to: Heavy metals in popularly sold branded cigarettes in Bangladesh and associated health hazards from inhalation exposure

Author

Hasan, Mehedi, Hossain, Md Moazzem, Abrarin, Shaifa, Kormoker, Tapos, Billah, Md Masum, Bhuiyan, Md Khurshid Alam, Akbor, Md Ahedul, Salam, Sayed MA, Khan, Rahat, Naher, Kamrun, Salam, Mohammed Abdus, Ali, Mir Mohammad, Rahman, Md Mostafizur, Emran, Talha Bin, Mahmoud, Z, Khandaker, Mayeen Uddin, and Siddique, Md Abu Bakar

Published
2023
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29. Larval Fish Assemblages in Coastal Waters of Bangladesh: Spatial and Seasonal Dynamics.

Author

Nahid, Sk. Ahmad Al, Rana, Saifuddin, Sultana, Nargis, Mawa, Jannatul, Souhardya, Sazeed Mehrab, Kabir, Ilias Ebne, Shimul, Shahida Arfine, Billah, Md Masum, Bhuiyan, Md Khurshid Alam, Dipty, Afsana Kabir, Ahmed, Sk Istiaque, Rahman, Md Jalilur, and Iqbal, Md Mehedi

Subjects
TERRITORIAL waters, FISH larvae, FISH communities, LANTERNFISHES
Abstract

The distribution of fish larvae in estuaries is crucial for comprehending the functioning of these ecosystems and their role as nursery grounds for marine fish species. Data regarding larval fish assemblages in the coastal waters of Bangladesh are currently scarce. This study examines the spatial and seasonal dynamics of larval fish communities in these waters using a two-year sampling effort with a bongo net. This study investigates the diversity, abundance, and distribution of larval fishes at four sites (Bakkhali River Estuary, Moheshkhalipara, Naf River Estuary, and Rezu Khal Estuary) on the southeastern coast of Bangladesh. A total of 10,387 fish larvae representing 25 families were identified. Clupeidae (42.9%), Engraulidae (35.5%), Ambassidae (10.1%), Myctophidae (2.1%), and Gobiidae (1.9%) were the five most dominant families based on the larval catch composition. Marked seasonal differences in the larval fish abundance were observed. However, these differences were not observed when comparing the four sampled sites. Additionally, the correlation between environmental variables and the larval abundance indicated that salinity negatively influences (p < 0.001) the larval fish abundance. This is the first comprehensive investigation of larval fish assemblages in the coastal waters of Bangladesh. The findings of this study enhance our understanding of the nursery habitat requirements for the early development stages of both migratory and resident species in subtropical coastal waters, providing valuable information for potential applications in management and conservation efforts. [ABSTRACT FROM AUTHOR]

Published
2024
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32. Riverbank Erosion and Rural Food Security in Bangladesh

Author

Billah, Md Masum, primary, Majumdar, Abahan, additional, Rahman, Syed Mohammad Aminur, additional, Alam, Mohammad Shah, additional, Hossain, Md Jamal, additional, Talukder, Joynulalom, additional, Islam, Md Mohidul, additional, and Khanam, Tahmida, additional

Published
2023
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39. An overview on water quality, pollution sources, and associated ecological and human health concerns of the lake water of megacity: a case study on Dhaka city lakes in Bangladesh

Author

Uddin, Minhaz, primary, Kormoker, Tapos, additional, Siddique, Md. Abu Bakar, additional, Billah, Md Masum, additional, Rokonuzzaman, Md, additional, Al Ragib, Abdullah, additional, Proshad, Ram, additional, Hossain, Md. Yeamin, additional, Haque, Md. Kamrul, additional, Ibrahim, Khalid A., additional, and Idris, Abubakr M., additional

Published
2023
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