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Articles by R. Islam
Total Records ( 4 ) for R. Islam
  R. Islam and C. Siwar
  This study analyzes the trade and environment, forest certification, timber product, market access and sustainable forest management. Trade is an important part in the forestry sector on environment, which affect on the competitiveness of individual producers. The timber products sector is a major player in Malaysia’s economic growth and this is reflected in the country’s exports performance. Market access leads to the extent to which forestry products can be traded domestic and internationally. Forest certification is a policy instrument to promote sustainable forest management and creates a variety of challenges for both marketers and regulators. Sustainable forest management has developed in the market access and it has a huge potential for creating employment, income and wealth for the populations. The purpose of this study is to develop the relationship between trade and environment through sustainable forest management.
  A.M. Shohael , M.A.L. Akanda , S. Parvez , S. Mahfuja , M.F. Alam , R. Islam and N. Joarder
  The present study was carried out to develop protocol in which plants could be regenerated with easy and in high numbers from tissue cultures of maize. The tissues of immature embryos were tested in three inbred lines (CML-161, CML-323, CML-327) MS and N6 were used. In N6 medium, the range of embryogenic calli formation was varied from 56.33-72.0%. The results indicated that the highest amount 72.0% was obtained when N6 was supplemented with L-proline 2.3 gm l-1, Casein Hydrolysate 200 mg l-1 and 2,4-D 1.0 mg l-1. Where as in MS medium the embryogenic calli formation was varied from 39.0-68.66%. In this case the highest amount (68.66) was obtained where MS was supplemented with L-Asparagine 150 mg l 1, Thiamin 50 mg l-1 and 2,4-D 1 mg l-1. Plants were regenerated successfully from embryogenic callus in hormone free MS medium. The results showed that MS (52.83-61.0%) medium was found better than N6 (35.66-42.49%). The mode of somatic embryogenesis was studied using histological technique.
  R. Islam and C. Siwar
  This study analyzes the certified timber products production and trade, the effects of timber certification and the role of timber certification on tropical timber trade in Malaysia. Timber certification is an important role in the forestry sector and considered to be complementary to forest management policies and takes a major player in Malaysia’s economic growth on tropical timber trade. Log export restrictions in Malaysia have been economically inefficient and have exacerbated environmental degradation by encouraging wasteful resource use. The significant of this study is to obtain the further development of timber certification in Malaysia.
  M. Shamim Hossain , M. Aslam Hossain , R. Islam , A. H. M. Khurshid Alam , Kudrat-e-Zahan , S. Sarkar and M. Akhter Farooque
  Owing to the biological importance of metalloelements in many biological processes, especially metabolic processes, magnesium(II) complexes were synthesized and examined for their antimicrobial and cytotoxic activities. Among the two synthesized organometalic complexes [Mg(2-ap)2, A] and [Mg(2-ab)2, C], the maximum antibacterial and antifungal activities were shown by the compound A. Among the ligands, 2-aminophenol (B) showed more antibacterial activity than 2-aminobenzoic acid (D). The minimum inhibitory concentration for the complex A against five pathogenic bacteria Streptococcus-haemolyticus, Bacillus subtilis, Staphylococcus aureus, Salmonella typhi and Escherichia coli were found in the range of 32-64 μg ml-1. The complexes were also tested for their cytotoxicity using brine shrimp lethality bioassay method and the LC50 values of the complexes A and C were found to be 5.7 and 24.3 µg ml-1 respectively. Antibacterial, antifungal and cytotoxic studies undertaken for the above compounds indicated structure-activity relationships. These metalloderivatives were more active than the parent compounds (ligands).
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