Biomass and Carbon Estimation of the Four Major Tree Species in Ratargul Swamp Forest, Bangladesh

Corresponding Author : A. Z. M. Manzoor Rashid (pollen_forest@yahoo.com)

Abstract : Wetland forests– a major ecosystem of Bangladesh, is still being neglected despite of having enormous potentials particularly in case of ecosystem balancing and CO2 accumulation. Under this purview, the present study aimed at estimating the biomass and carbon stock of four major tree species namely Pongamia pinnata, Barringtonia acutangula, Syzygium fruticosum and Lagerstroemia speciosa at Ratargul swamp forest under Sylhet Forest Division. Thirty sample plots (20 m × 20 m) were taken to enumerate biomass and carbon stock of the…

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Are Diamond’s assembly rules applicable in tropical threatened vascular plants assemblages in the Tarap Hill Reserve in Bangladesh?

Corresponding Author : Mahmuda Sharmin (m.sharmin@westernsydney.edu.au)

Abstract : Disentangling the co-existing patterns (random or non-random) of species and to infer about assembly rules underpinning the observed patterns are central research issues in community ecology. Previous empirical results suggested that Diamond’s assembly rule explains a considerable amount of observed species spatial distribution pattern variation. However, the rule has yet to be checked in tropical forests where plant communities experience high anthropogenic disturbances and rapid conversion of natural forests has resulted in fragmented forests with many threatened species. In this…

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Epimorphic Image of P-Ideals of P-Algebras

Corresponding Author : M.R. Talukder (r.talukder-mat@sust.edu)

Abstract : In this paper, we study p-ideals of a p-algebra. We prove that epimorphic image of a p-ideal is a p-ideal. Our main result is that the lattice of p-ideals of a p-algebra L is isomorphic to the lattice of ideals of the Boolean algebra formed by the closed elements of L.

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Potentials and Hindrances of Directing Remittances in Investment: A Study in the Sylhet Region of Bangladesh

Corresponding Author : Dr. Md. Zakir Hossain (mzhossain.bds@gmail.com)

Abstract : The Sylhet region of Bangladesh is undoubtedly a potential hub for industrial development due to its comparative advantage in terms of land, raw materials, capital, location specific advantages for international business, Diaspora network of Sylheti expatriates, etc. The foreign remittance is regarded as an important instrument for economic development of the region. An attempt is made to explore the potential and hindrances of directing remittances in investment sectors. The study has analysed a primary dataset generated by a field survey…

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An Alternative Approach to Gravity based on Multiple Independent Fields

Corresponding Author : B. K. Chakravorti (bkcb59@gmail.com)

Abstract : We present a new approach to gravity theory. In this approach, four independent fields convey the gravitational force. These fields are colored in the sense that they do not add up to Newtonian potential and field for two body gravitational interaction. The fields are generated by two types of mass of a single body; the gravitoelectric charge (mass)m and gravitomagnetic charge (mass) -2m. Here, there is no disparity between source and test particle masses which is usually seen in typical…

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Numerical Simulation of Blood Flow through Stenosed Artery Using Bifurcation Concept

Corresponding Author : Md. Alamgir Kabir (akabir-mat@sust.edu)

Abstract : Blood flow patterns are extensively associated with the initial development of atherosclerosis in the bifurcation of the carotid artery. In the present study, two different arterial bifurcation geometrical models are used to investigate the hemodynamic parameters numerically. Model 1 is assumed as a bifurcated carotid artery without stenosis whereas Model 2 with stenosis. The inlet boundary conditions for the streamwise velocity have been created by the equation of sinusoidal pulsatile velocity profile and the program is written in C-language using…

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Internal consistency and structure of the statistics anxiety rating scale: A multivariate analysis among undergraduate students of SUST, Sylhet

Corresponding Author : Mohammad Romel Bhuia (romel_stat@yahoo.com)

Abstract : The need for basic statistics knowledge in undergraduate level is increasing day by day. However, many students find it difficult to figure out statistical concepts and have become one of the greatest challenges among students at all levels of study. Few studies related to statistics anxiety have been done in the regions other than English-speaking populations. No study has yet been done to examine the internal consistency and structure of Statistics Anxiety Rating Scale (STARS) in Bangladesh. This study aimed…

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