MD Hedayet ullah A - Academia.edu (original) (raw)
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Papers by MD Hedayet ullah A
Philippine Journal of Development, 2005
The informal sector has been growing globally such that it can no longer be considered as a tempo... more The informal sector has been growing globally such that it can no longer be considered as a temporary or residual phenomenon. There may be differences in the nature of activity of the informal sector in the developed and developing countries, yet it is evident that this sector is contributing economically anywhere in the world, irrespective of a country's economic system. To some extent, employment in the informal sector is more of a necessity than a choice, as the demand for labor in the formal sector is low and people seem to move into this sector due more to push, rather than pull, factors, since survival is their main concern. In this case, the ability to generate income and to survive depends to a large extent on the probability of getting a job in the informal sector. The biggest challenge to a large section of the people working in the informal sector is their heavy dependence on income from this sector to survive. Against this backdrop, the paper aims to highlight the importance of the informal economy in a less developed country like Bangladesh, where a large section of the people is engaged outside of the formal economic activities. Moreover, the study attempted to find out the determi
Energy Science and Technology, May 31, 2013
The objective of this paper is to analyze the yeast cell, liver cell and blood cell under both in... more The objective of this paper is to analyze the yeast cell, liver cell and blood cell under both infected and healthy conditions by applying electrical signal through dual nanoprobe from source to cell. Knowledge of nanoprobe based bio-cell analysis can be used to differentiate infected cells from healthy ones, since their electrical behaviour is different. The voltage can be applied either inside the cytoplasm penetrating the cell wall, or at the outer surface of cell membrane. In this paper, the simulation has been carried out by applying voltage inside the cytoplasm using ABAQUS 6.10 CAE, powerful finite element software and the results obtained from simulation shows current flow healthy yeast and dead yeast cells are 1•9nA and 34pA respectively whereas the value of the current measured for the leukaemia affected blood cell is 21•2nA, being 2% less than the White Blood Cell (WBC). Since the conductivity of the cytoplasm of the healthy cell is theoretically higher than that of dead or infected cell, which is verified by simulation. The results from simulation show that the measured cell current from liver tumour cell is 2-7 times larger than healthy liver cell including membrane as it is supposed to be since the conductivity of cell including cell membrane is theoretically greater for dead or infected cell than healthy cell.
Philippine Journal of Development, 2005
The informal sector has been growing globally such that it can no longer be considered as a tempo... more The informal sector has been growing globally such that it can no longer be considered as a temporary or residual phenomenon. There may be differences in the nature of activity of the informal sector in the developed and developing countries, yet it is evident that this sector is contributing economically anywhere in the world, irrespective of a country's economic system. To some extent, employment in the informal sector is more of a necessity than a choice, as the demand for labor in the formal sector is low and people seem to move into this sector due more to push, rather than pull, factors, since survival is their main concern. In this case, the ability to generate income and to survive depends to a large extent on the probability of getting a job in the informal sector. The biggest challenge to a large section of the people working in the informal sector is their heavy dependence on income from this sector to survive. Against this backdrop, the paper aims to highlight the importance of the informal economy in a less developed country like Bangladesh, where a large section of the people is engaged outside of the formal economic activities. Moreover, the study attempted to find out the determi
Energy Science and Technology, May 31, 2013
The objective of this paper is to analyze the yeast cell, liver cell and blood cell under both in... more The objective of this paper is to analyze the yeast cell, liver cell and blood cell under both infected and healthy conditions by applying electrical signal through dual nanoprobe from source to cell. Knowledge of nanoprobe based bio-cell analysis can be used to differentiate infected cells from healthy ones, since their electrical behaviour is different. The voltage can be applied either inside the cytoplasm penetrating the cell wall, or at the outer surface of cell membrane. In this paper, the simulation has been carried out by applying voltage inside the cytoplasm using ABAQUS 6.10 CAE, powerful finite element software and the results obtained from simulation shows current flow healthy yeast and dead yeast cells are 1•9nA and 34pA respectively whereas the value of the current measured for the leukaemia affected blood cell is 21•2nA, being 2% less than the White Blood Cell (WBC). Since the conductivity of the cytoplasm of the healthy cell is theoretically higher than that of dead or infected cell, which is verified by simulation. The results from simulation show that the measured cell current from liver tumour cell is 2-7 times larger than healthy liver cell including membrane as it is supposed to be since the conductivity of cell including cell membrane is theoretically greater for dead or infected cell than healthy cell.