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Articles by S. Islam
Total Records ( 8 ) for S. Islam
  M.A. Salam , M.R. Ali , Md. Eunus Ali , K.A. Alam , M.S.H. Reza , S. Islam and S.M.M. Rahman
  M. Das , D.K. Deka , P.C. Sarmah , S. Islam and R. Laha
  To determine the prevalence of Giardia duodenalis infection in dairy cattle present in Assam, India, a total of 1176 numbers of faecal samples of cattle comprising 535 numbers of faecal samples of calves and 641 numbers of faecal samples of heifers were screened for one year using Formol-Ether technique and zinc sulphate (33%) floatation method. The overall prevalence of infection in cattle was 17.94%. Age-wise infection rate was 13.45 and 21.68% in calves and heifers, respectively. Season-wise highest infection was recorded during monsoon (30.90%) followed by pre-monsoon (21.97%), post-monsoon (5.50%) and winter (4.45%). Infection was higher among the diarrhoeic (83.41%) than non-diarrhoeic (16.58%) animals. The prevalence of G. duodenalis infection in cattle of Assam has significance because it infects a wide range of hosts, including humans worldwide and responsible for causing diarrhoea.
  M.R. Tabassum , A.Ul. Gias , M.M. Kamal , S. Islam , H.M. Muctadir , M. Ibrahim , A.K. Shakir , A. Imran , S. Islam , M.G. Rabbani , S.M. Khaled , M.S. Islam and Z. Begum
  Most of the researches done in the fields of skin detection has been trained and tested on human images of African, Mongolian and Anglo-Saxon ethnic origins for face recognition, human motion detection, pornographic and nude image prediction, etc. Although, there are several intensity invariant approaches to skin detection, the skin color of Indian sub-continentals have not been focused separately. The approach of this research is to make a comparative study between three image segmentation approaches using Indian sub-continental human images, to optimize the detection criteria and to find some efficient parameters to detect the skin area from these images. The experiments observed that HSV color model based approach to Indian sub-continental skin detection is more suitable with considerable success rate of 91.1% true positives and 88.1% true negatives.
  R. Hashim and S. Islam
  Aim of this study is to determine physical and mechanical properties of tropical peatland in West Malaysia. To know the proper methods of ground improvement and to know the scale of improvement works, a proper soil investigation requires. A study on peatland in Peninsular, Malaysia was conducted to determine stratigraphy of peat layer, bearing capacity, physical properties, unconfined compressive strength and consolidation properties. Some conventional laboratory and field experiments were done to determine its physical and mechanical properties and to find the soil profile. From experiments it was observed that the depth of the peat was moderate and it had high water, organic and fibre content. The soil was acidic and it had low bearing capacity and had low unconfined compressive strength. Its compressibility was very high and it had high settlement value. These properties should be considered when ground improvement works are undertaken for this type of problematic soil in construction industry.
  S. Islam , M.S. Hossain , N. Nahar , M. Mosihuzzaman and M.I.R. Mamun
  A reverse phase high performance liquid chromatographic method with an acetonitrile-water mobile phase gradient and UV/Visible detection is described for the determination of three pesticides, frequently used in agriculture, in eggplant samples. The samples were sprayed with three pesticides namely, Diazinon, Malathion, Sumithion at three different doses and were harvested at two different Pre-Harvest Interval (PHI) of days 1 and 5 after the application of the pesticides. Sample preparation involved extraction with ethyl acetate and clean up was accomplished by solid-phase extraction using florisil columns. Calibration curves that were constructed for the analytes with matrix matching followed linear relationships with good correlation coefficients (R2>0.990). The average recoveries of the pesticides which were sensitive to matrix effects ranged from 88-120%. Detection limit of less than 0.02 mg kg-1 showed that the method developed can be used to determine the pesticide residues in concentrations lower than the maximum residue limits. In the analysis of residues, samples treated with Diazinon at all doses, residual amounts above Maximum Residue Limit (MRL) (0.02 mg kg-1) were found. Malathion and Sumithion were found above MRL (0.5 mg kg-1) value in only one sample for each pesticide.
  U. Salma , M.S.M. Rahman , S. Islam , N. Haque , M. Khatun , T.A. Jubair and B.C. Paul
  A protocol for mass propagation through axillary bud proliferation was established for Rauwolfia serpentina L. Benth. (Apocynaceae). MS medium supplemented with 1.5 mg L-1 BA and 0.2 mg L-1 NAA elicited the maximum number of shoots (4 multiple shoots) from nodal explants. These adventitious shoots were best rooted on half strength MS medium supplemented with 1.0 mg L-1 each of IBA and IAA. The in vitro raised plants were acclimatized in glass house and successfully transplanted to field condition with almost 95% survival.
  U. Salma , M.S.M. Rahman , S. Islam , N. Haque , T.A. Jubair , A.K.M.F. Haque and I.J. Mukti
  The influence of media composition on callus induction and subsequent regeneration of Rauwolfia serpentina L. Benth has been studied. High frequency (96.43%) callus induction was obtained when nodal segments from in vitro raised shoots were cultured on MS medium supplemented with 0.5 mg L-1 BA and 2.0 mg L-1 NAA. The callus differentiated into adventitious shoots when it was subcultured on MS medium supplemented with 2.0 mg L-1 BA with 0.2 mg L-1 NAA. Regenerated shoots were best rooted on half-strength MS medium with 1.0 mg L-1 each of IBA and IAA.
  M.Z. Karim , M.N. Amin , Asaduzzaman , S. Islam , Faruk Hossin and R. Alam
  An efficient protocol was developed for direct regeneration, multiplication and rooting under in vitro conditions of Chrysanthemum. The frequency of multiple shoot regeneration response was 95 and 91%, for nodal segments and shoot tips, respectively when cultured on the medium containing MS +1.0 mg l-1 BAP. Efficient rooting was achieved on half strength of MS+0.2 mg l-1 IBA. In vitro raised plantlets were transferred to potted soil and finally transferred to the field.
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