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OBJECTIVE To investigate the extent of tobacco expenditures in Bangladesh and to compare those costs with potential investment in food and other essential items. DESIGN Review of available statistics and calculations based thereon. RESULTS Expenditure on tobacco, particularly cigarettes, represents a major burden for impoverished Bangladeshis. The(More)
Early-life inorganic arsenic exposure influences not only child health and development but also health in later life. The adverse effects of arsenic may be mediated by epigenetic mechanisms, as there are indications that arsenic causes altered DNA methylation of cancer-related genes. The objective was to assess effects of arsenic on genome-wide DNA(More)
Effective facial feature is needed to build a robust face recognition system capable of suppress the effect of illumination and pose variation. In this paper, a robust face recognition system is proposed. In the proposed system, two level haar wavelet transform is used to decompose frontal face image into seven sub-image bands. Thereafter eigenface feature(More)
The development of self-assembled magnetic CoFe 2 O 4 nanoparticles within polymer matrices at room temperature is reported. Diblock copolymers consisting of poly ͑norbornene͒ and poly ͑norbornene-dicarboxcylic acid͒ ͑NOR/NORCOOH͒ were synthesized. The self-assembly of the mixed metal oxide within the NORCOOH block was achieved at room temperature by(More)
Antimicrobial peptides represent an important component of the innate immune defenses of living organisms, including humans. They are broad-spectrum surface-acting agents secreted by the epithelial cells of the body in response to infection. Recently, L-isoleucine and its analogues have been found to induce antimicrobial peptides. The objectives of the(More)
The morphology and magnetic properties of diblock copolymer templated ferrimagnetic cobalt oxide nanoparticles are reported. Ring opening metathesis polymerization (ROMP) was used to synthesize a novel cobalt diblock copolymer, where cobalt is directly attached to the polymer chain. Gel permeation chromatography (GPC) was performed to determine molecular(More)