The main objective of this study that the category wise performance of scheduled banking industri... more The main objective of this study that the category wise performance of scheduled banking industries operating in Bangladesh. To test the trend of deposits and advances in scheduled banks for rural and urban areas. T he present study is diagnostic and exploratory in nature and makes use of secondary data. The relevant data and information are collected from the Central Bank of Bangladesh. The study is confined only to the specific areas like Banks Deposits, Banks Advances and Interest Rate. Linear regression analysis was applied to detect the presence of trends. A paired t-test was used to compare performance of the scheduled banks. Linear regression analysis result is the significant improvement in the contribution of overall deposits and advances (rural & urban area) of scheduled banks in Bangladesh are witnessed over the period of study in terms of the growth of deposits and advances. A paired t–test result the significantly difference of the paired of scheduled banks. The private...
Accurate inventory data are required for ensuring optimal net return on investment from the fores... more Accurate inventory data are required for ensuring optimal net return on investment from the forest. Erroneous data can lead to the formulation of a non-optimal plan that can cause inoptimality losses. Little is known of the effect of using erroneous stand inventory data in preparing holding-level forest plans. This study reports on an approach for analyzing such inoptimality losses. Furthermore, inoptimality losses caused by measurement errors in the basal area of the dominated tree species were investigated in a case study. Based on the inventory data including routine measurements by 67 measurers, four measurer groups were created with different measurement error profiles for the basal area of the dominated tree species. This was followed by measurement error simulations for each group and by adding these to the accurate control inventory data to create erroneous data of different error profiles. Three different forest plans were then constructed by using erroneous data of each gr...
The genetic diversity and population structure of Mali pigs of Tripura was investigated using a s... more The genetic diversity and population structure of Mali pigs of Tripura was investigated using a set of 19 microsatellite markers recommended by Food and Agricultural Organization of United Nations (FAO) for Swine. All the studied loci were highly informative. The number of observed alleles (N) detected ranged from a 3 to 11, with an overall mean of 5.63±0.663. In total 121 alleles were observed across the investigated loci. The effective number of alleles (N) ranged from 1.172 to 6.502 with a mean of 3.16±0.328. The PIC value ranged from e 0.141 to 0.794 with the overall mean of 0.53±0.266. The overall means for observed (H) and expected (H) O e heterozygosities were 0.38±0.052 and 0.57±0.059 respectively. The within breed inbreeding estimate indicated heterozygosity shortage of 0.290. The Hardy-Weinberg equilibrium test revealed that 14 out of 19 loci deviated from equilibrium. Shannon's information index (I), was sufficiently high with a mean of 1.18±0.133. The bottleneck anal...
The present study was concerned with the kinetics of drying of summer onion. Drying was done in a... more The present study was concerned with the kinetics of drying of summer onion. Drying was done in a mechanical dryer at constant air flow using blanched and unblanched onion with variable temperature (52, 60 and 680C) and thickness (3, 5 and 7 mm). Drying rate was increased with increase of temperature and decreased with the increase in thickness in blanched and unblanched onion. Blanched onion showed higher drying rate than unblanched onion. Drying rate constant and thickness can be expressed as power low equations. The value of index n were found to be 1.277 and 0.845 for onion indicating that the external resistance to mass transfer was highly significant. The effect of temperature on diffusion co-efficient follows an Arrhenius type relationship. The activation energy (Ea) for diffusion of water was found 5.781 Kcal/g-mole for unblanched and 2.46 Kcal/g-mole for blanched onion when onions were dried in mechanical dryer. DOI: http://dx.doi.org/10.3329/bjar.v39i4.22545 Bangladesh J...
Plant extracts are the best alternatives of chemical insecticides and can save the plant species ... more Plant extracts are the best alternatives of chemical insecticides and can save the plant species as well as the world's environments. For releasing the plant materials as a botanical insecticide proper plant species and plant parts screening and identifying the mode of action on insect is essential. For this purpose, different plant parts of Calotropis procera, Derris indica, Ipomoea quamoclit, Piper longum and Polygonum hydropiper and salivary gland chromosomes of Musca domestica L. (Diptera: Muscidae) had selected for investigation. Dose mortality test result showed the intensity of activity in a descending order as I. quamoclit (911.83 ppm) > P. hydropiper (1205.47 ppm) > C. procera (5410.82 ppm) > D. indica (5519.30 ppm) > P. longum (10737.43 ppm) and in all the cases significant differences were found for dose differences. The test results demonstrated potential effects on salivary gland chromosomes where highly effective plant extracts showed more compact chromosomes than lower effective extracts i.e. the compactness of chromosomes depended upon the activities of the plant extracts.
University Journal of Zoology, Rajshahi University, 2012
Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem w... more Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem wood of Derris indica were tested for their antibacterial and larvicidal potentials. Except the seed extract all other extracts offered activity against 15 pathogenic bacteria. The fruit shell extract showed activity against B. cereus, S.-β- haemolyticus and S. typhi; the leaf extract against Klebsiella sp. only; the root bark against B. cereus, B. megaterium, B. subtilis, S. -β- haemolyticus, S. typhi, S. dysenteriae and S. sonnei; the root wood extract against B. sereus, B. megaterium, B. subtilis, S. -β- haemolyticus, S. typhi, S. dysenteriae, S. shiga, S. sonnei, Klebsiella sp. and P. aeruginosa; the stem bark extract against B. cereus, B. subtilis, S. -β- haemolyticus and S. sonnei and the stem wood extract against B. cereus, B. megaterium, B. subtilis, S. -β- haemolyticus, S. typhi and S. dysenteriae. According to the intensity of activity against the selected bacteria the D. indica...
University Journal of Zoology, Rajshahi University, 2013
Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem w... more Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem wood of Derris indica Bennet. were tested against the brine shrimp, Artemia salina nauplii. All the test extracts of D. indica were found to be effective. The LC50 values of the extracts were 15312.37, 92.074 and 29.661 ppm for the fruit shell; 60922.83, 61.522 and 23.777 ppm for the leaf; 15312.37, 51.477 and 19.169 ppm for the root bark; 2598.584, 30.480 and 8.260 ppm for the root wood; 545.025,26.730 and 7.719 ppm for the seed; 60922.83, 114.549 and 29.572 ppm for the stem bark and 7734.618, 58.501 and 23.694 ppm for the stem wood at 30 minute, 24 hours and 48 hours post exposures respectively at doses 200, 100, 50, 25, 12.5, 6.25, 3.125 and 1.563 ppm against A. salina . The toxicity of the extracts could be arranged in the order: seed > root wood > root bark> stem wood > leaf > fruit shell > stem bark extract. However, the extracts did not significantly inhibit...
Contraceptive discontinuation is a worldwide incident that may be connected with low incentive to... more Contraceptive discontinuation is a worldwide incident that may be connected with low incentive to avoid pregnancy. Contraceptive discontinuation highly contributes to unplanned pregnancy and unwanted births. Objectives: The objective of this study was to observe the prevalence of discontinuation and switching of contraceptive methods among Bangladeshi married women. In addition, the sociodemographic factors associated with contraceptive discontinuation and switching were assessed. Methods: Secondary cross-sectional data was used in this study. A total of 16,273 married Bangladeshi women of reproductive age (15-49 years) were considered in the present study, from the Bangladesh Demographic and Health Survey, 2011. Logistic regression models were used to determine the relationships between key sociodemographic factors and user status. Results: The prevalence of discontinuation and switching of contraceptive method among women were 38.4% and 15.4%, respectively. The logistic regression model demonstrated that women in early reproductive years (25-29 years and 30-34 years) significantly more often (odds ratio [OR] =0.84 and 0.71, respectively) discontinued use of contraceptives. Significantly higher rates of discontinuation were pronounced among women who used the pill (OR =0.72) and injectable contraception users (OR =0.60), had small family size (OR =0.49), lived in a rural community (OR =1.65), and who were less educated (OR =1.55). Conclusion: Contraceptive discontinuation may reflect an association among less education, currently married, and smaller family size. Awareness of contraceptive methods can decrease the burden of unplanned pregnancies and thus progresses the family planning program.
Chittagong University Journal of Biological Sciences, 2013
The present study was undertaken to investigate the effect of social support on mental health. A ... more The present study was undertaken to investigate the effect of social support on mental health. A total of 100 adult respondents (50 normal, 50 mental patients) of age ranging from 18 to 45 were selected as the sample of the study. The Bangla version of Social Support Scale & Mental Health Questionnaire or GHQ-12 was used in the study. Three aspects of social support were measured: number of social support (SSN), importance of social support (SSI) and satisfaction of social support (SSS). Results of the present study indicated that normal and mental patients differed significantly from each other in terms of social support. This means that the more the social support the better was the respondents mental health. The result also indicated that normal people had the better mental health than mental patients. Gender had no significant effect on normal & mental patients. DOI: http://dx.doi.org/10.3329/cujbs.v3i1.13410 The Chittagong Univ. J. B. Sci.,Vol. 3(1&2):95-107, 2008
Background: Tribolium castaneum (Herbst) is a harmful pest of stored grain and flour-based produc... more Background: Tribolium castaneum (Herbst) is a harmful pest of stored grain and flour-based products in tropical and subtropical region. In the present study, rhizome of Drynaria quercifolia (J. Smith) was evaluated for pesticidal and pest repellency activities against T. castaneum, using surface film method and filter paper disc method, respectively. In addition, activity of the isolated compound 3,4-dihydroxybenzoic acid was evaluated against the pest. Results: Chloroform soluble fraction of ethanol extract of rhizome of D. quercifolia showed significant pesticidal activity at doses 0.88 to 1.77 mg/cm 2 and significant pest repellency activity at doses 0.94 to 0.23 mg/cm 2. No pesticidal and pest repellency activity was found for petroleum ether, ethyl acetate and methanol soluble fractions of ethanol extract as well as for 3,4-dihydroxybenzoic acid. Conclusion: Considering our findings it can be concluded that chloroform soluble fraction of rhizome of D. quercifolia is useful in controlling T. castaneum of stored grain and flour-based products.
University Journal of Zoology, Rajshahi University, 2013
The study was carried out in Chittagong Veterinary and Animal Sciences University (CVASU), Chitta... more The study was carried out in Chittagong Veterinary and Animal Sciences University (CVASU), Chittagong to find out the causes of sudden death of cattle in the Military Dairy Farm, Chittagong. To explore the cause of death, clinical history, clinical signs were recorded. Finally, postmortem was done and samples were collected for laboratory diagnosis. The ruminal pH was 9.0 and the clinical history along with signs suggests possible non-protein nitrogenous compound poisoning. The laboratory diagnosis coincides with nitrate poisoning which focuses possible relationship between non-protein nitrogenous compound and nitrate poisoning. The study recommends maintaining proper cautions to use urea in concentrate feed.DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15403Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 65-68
The plain woven fabrics have been prepared from the blends of sulphonated jute fibre with natural... more The plain woven fabrics have been prepared from the blends of sulphonated jute fibre with natural and syntheti c fibres, and their geometrical, physico-mechanical and drapping properties studied. It is observed that the blended fib re fabrics show improved textile properties, almost similar to those of the cotton fabrics.
Single-tree selection harvesting is frequently used in the tolerant hardwood forests of North Ame... more Single-tree selection harvesting is frequently used in the tolerant hardwood forests of North America, but little is known about how it affects the reproductive success of migratory songbirds. Many songbirds that breed in tolerant hardwoods, including the Rose-breasted Grosbeak (Pheucticus leudovicianus) are experiencing population declines across their breeding ranges. We studied habitat characteristics and reproductive success of Rose-breasted Grosbeaks in stands harvested 0-5, 16-20, and 21-25 years previously and in reference stands (un-harvested for >50 years) in Algonquin Provincial Park, Ontario, Canada (n = 3 per age class). Recently harvested stands had higher cover from regenerative growth and lower sapling, understory, and canopy cover than other treatments, whereas reference stands had higher basal area and sapling cover. Pairing success was significantly lower in the reference stands than in all other post-harvest treatments, and the number of fledglings per successful nest was significantly lower in the reference stands than in the 0-5 years post-harvest stands. Density and population growth rate were significantly positively correlated, suggesting that density may be an adequate indicator of habitat quality for Rosebreasted Grosbeaks in forested landscapes. Older males were present at higher densities, initiated their nests earlier, and produced significantly more fledglings per nest than younger males in all treatments. Habitat characteristics did not differ significantly between nests with second-year and after-second-year males, suggesting greater reproductive output of older males was likely due to experience rather than monopolization of better quality territories. We concluded that single-tree selection harvesting was beneficial to Rose-breasted Grosbeaks in our predominantly forested study area. Population growth rates were below replacement levels in the 21-25 years post-harvest and reference treatments, but populations were stable in the younger regenerating stands. Thus, in a continuously forested landscape this species' declines are probably not attributable to single-tree selection harvesting.
Protein tyrosine phosphatase 1B Aldose reductase Advanced glycation end products a b s t r a c t ... more Protein tyrosine phosphatase 1B Aldose reductase Advanced glycation end products a b s t r a c t Vicenin 2, isolated from a traditionally used medicinal plant Artemisia capillaris, is a 6,8-di-C-glucoside of apigenin which has been previously reported to possess a wide variety of pharmacological activities including antioxidant, anti-inflammatory, anti-cancer, and hepatoprotective. However, there have not been any reports concerning its anti-diabetic potential until now. Therefore, in the present study, we evaluated the anti-diabetic potential of vicenin 2 via a-glucosidase, protein tyrosine phosphatase 1B (PTP1B), rat lens aldose reductase (RLAR), and advanced glycation end products (AGE) formation inhibitory assays. Vicenin 2 strongly inhibited a-glucosidase, PTP1B, and RLAR in the corresponding assays. In addition, vicenin 2 inhibited the formation of both fluorescent AGE and nonfluorescent AGE, e.g., CML, as well as the level of fructosamine in glucose-fructose-induced bovine serum albumin (BSA) glycation. In the test system, vicenin 2 suppressed glycation-induced protein oxidation by attenuating the formation of protein carbonyl groups as well as by inhibiting the modification of protein thiol groups. Moreover, vicenin 2 was found to be a potent inhibitor of glycation-induced formation of amyloid cross-b structures in BSA. Taken together, vicenin 2 might be a useful lead for the development of multiple target-oriented therapeutic modalities for the treatment of diabetes and diabetes-associated complications.
Chemical treatment is an often-followed route to improve the physical and mechanical properties o... more Chemical treatment is an often-followed route to improve the physical and mechanical properties of natural fiber reinforced polymer matrix composites. In this study, the effect of chemical treatment on physical and mechanical properties of jute fiber reinforced polypropylene (PP) biocomposites with different fiber loading (5, 10, 15, and 20 wt%) were investigated. Before being manufactured jute fiber/PP composite, raw jute fiber was chemically treated with succinic anhydride for the chemical reaction with cellulose hydroxyl group of fiber and to increase adhesion and compatibility to the polymer matrix. Jute fiber/PP composites were fabricated using high voltage hot compression technique. Fourier Transform Infrared spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) tests were employed to evaluate the morphological properties of composite. Succinic anhydride underwent a chemical reaction with raw jute fiber which was confirmed through FTIR results. SEM micrographs of the fractured surface area were taken to study the fiber/matrix interface adhesion and compatibility. Reduced fiber agglomeration and improved interfacial bonding was observed under SEM in the case of treated jute fiber/PP composites. The mechanical properties of jute/PP composite in terms of Tensile strength and Young's modulus was found to be increased with fiber loading up to 15 wt% and decreased at 20 wt%. Conversely, flexural strength and flexural modulus increased with fiber loading up to 10 wt% and start decreasing at 15 wt%. The treated jute/PP composite samples had higher hardness (Rockwell) and lower water absorption value compared to that of the untreated ones.
Purpose Accumulating evidence suggests that inhibitors of aldose reductase (AR) may prevent hyper... more Purpose Accumulating evidence suggests that inhibitors of aldose reductase (AR) may prevent hyperglycemiainduced long-term complications in diabetes mellitus. In the present study, we evaluated the AR inhibitory potential of ethanolic (EtOH) extracts from 22 seaweed species. Methods AR inhibitory activities of the selected seaweed species were evaluated using the rat lens aldose reductase (RLAR) inhibitory assay. Results All extracts exhibited RLAR inhibitory activity, which ranged from 5.87 to 92.71 % at a concentration of 50 lg/mL. Since Capsosiphon fulvescens exhibited significant inhibitory potential and is a frequently used foodstuff, it was selected for a detailed investigation using RLAR and advanced glycation end products (AGE) formation inhibitory assays. Among the different solventsoluble fractions, the CH 2 Cl 2 , EtOAc, and n-BuOH fractions showed promising RLAR and AGE formation inhibitory activities. Considering the AR inhibitory potential, CH 2 Cl 2 and EtOAc fractions were selected for chromatographic separation and yielded 11 compounds in which capsofulvesin A, capsofulvesin B, and chalinasterol showed potential RLAR inhibitory activity with the respective IC 50 values of 52.53, 101.92, and 345.27 lM. Kinetic studies revealed that capsofulvesin A and chalinasterol exhibited mixed type inhibition, while capsofulvesin B exhibited noncompetitive inhibition. To our knowledge, this is the first report of AR inhibitory activity of the glycolipids capsofulvesin A and capsofulvesin B. Conclusions Our results clearly indicate the potential RLAR and AGE formation inhibitory activities of C. fulvescens as well as its isolated constituents, which could be further explored to develop therapeutic modalities for the treatment of diabetes and related complications. Keywords Capsosiphon fulvescens Á Rat lens aldose reductase Á Advanced glycation end products Á Diabetic complications Á Green alga Á Glycolipid
The main objective of this study that the category wise performance of scheduled banking industri... more The main objective of this study that the category wise performance of scheduled banking industries operating in Bangladesh. To test the trend of deposits and advances in scheduled banks for rural and urban areas. T he present study is diagnostic and exploratory in nature and makes use of secondary data. The relevant data and information are collected from the Central Bank of Bangladesh. The study is confined only to the specific areas like Banks Deposits, Banks Advances and Interest Rate. Linear regression analysis was applied to detect the presence of trends. A paired t-test was used to compare performance of the scheduled banks. Linear regression analysis result is the significant improvement in the contribution of overall deposits and advances (rural & urban area) of scheduled banks in Bangladesh are witnessed over the period of study in terms of the growth of deposits and advances. A paired t–test result the significantly difference of the paired of scheduled banks. The private...
Accurate inventory data are required for ensuring optimal net return on investment from the fores... more Accurate inventory data are required for ensuring optimal net return on investment from the forest. Erroneous data can lead to the formulation of a non-optimal plan that can cause inoptimality losses. Little is known of the effect of using erroneous stand inventory data in preparing holding-level forest plans. This study reports on an approach for analyzing such inoptimality losses. Furthermore, inoptimality losses caused by measurement errors in the basal area of the dominated tree species were investigated in a case study. Based on the inventory data including routine measurements by 67 measurers, four measurer groups were created with different measurement error profiles for the basal area of the dominated tree species. This was followed by measurement error simulations for each group and by adding these to the accurate control inventory data to create erroneous data of different error profiles. Three different forest plans were then constructed by using erroneous data of each gr...
The genetic diversity and population structure of Mali pigs of Tripura was investigated using a s... more The genetic diversity and population structure of Mali pigs of Tripura was investigated using a set of 19 microsatellite markers recommended by Food and Agricultural Organization of United Nations (FAO) for Swine. All the studied loci were highly informative. The number of observed alleles (N) detected ranged from a 3 to 11, with an overall mean of 5.63±0.663. In total 121 alleles were observed across the investigated loci. The effective number of alleles (N) ranged from 1.172 to 6.502 with a mean of 3.16±0.328. The PIC value ranged from e 0.141 to 0.794 with the overall mean of 0.53±0.266. The overall means for observed (H) and expected (H) O e heterozygosities were 0.38±0.052 and 0.57±0.059 respectively. The within breed inbreeding estimate indicated heterozygosity shortage of 0.290. The Hardy-Weinberg equilibrium test revealed that 14 out of 19 loci deviated from equilibrium. Shannon's information index (I), was sufficiently high with a mean of 1.18±0.133. The bottleneck anal...
The present study was concerned with the kinetics of drying of summer onion. Drying was done in a... more The present study was concerned with the kinetics of drying of summer onion. Drying was done in a mechanical dryer at constant air flow using blanched and unblanched onion with variable temperature (52, 60 and 680C) and thickness (3, 5 and 7 mm). Drying rate was increased with increase of temperature and decreased with the increase in thickness in blanched and unblanched onion. Blanched onion showed higher drying rate than unblanched onion. Drying rate constant and thickness can be expressed as power low equations. The value of index n were found to be 1.277 and 0.845 for onion indicating that the external resistance to mass transfer was highly significant. The effect of temperature on diffusion co-efficient follows an Arrhenius type relationship. The activation energy (Ea) for diffusion of water was found 5.781 Kcal/g-mole for unblanched and 2.46 Kcal/g-mole for blanched onion when onions were dried in mechanical dryer. DOI: http://dx.doi.org/10.3329/bjar.v39i4.22545 Bangladesh J...
Plant extracts are the best alternatives of chemical insecticides and can save the plant species ... more Plant extracts are the best alternatives of chemical insecticides and can save the plant species as well as the world's environments. For releasing the plant materials as a botanical insecticide proper plant species and plant parts screening and identifying the mode of action on insect is essential. For this purpose, different plant parts of Calotropis procera, Derris indica, Ipomoea quamoclit, Piper longum and Polygonum hydropiper and salivary gland chromosomes of Musca domestica L. (Diptera: Muscidae) had selected for investigation. Dose mortality test result showed the intensity of activity in a descending order as I. quamoclit (911.83 ppm) > P. hydropiper (1205.47 ppm) > C. procera (5410.82 ppm) > D. indica (5519.30 ppm) > P. longum (10737.43 ppm) and in all the cases significant differences were found for dose differences. The test results demonstrated potential effects on salivary gland chromosomes where highly effective plant extracts showed more compact chromosomes than lower effective extracts i.e. the compactness of chromosomes depended upon the activities of the plant extracts.
University Journal of Zoology, Rajshahi University, 2012
Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem w... more Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem wood of Derris indica were tested for their antibacterial and larvicidal potentials. Except the seed extract all other extracts offered activity against 15 pathogenic bacteria. The fruit shell extract showed activity against B. cereus, S.-β- haemolyticus and S. typhi; the leaf extract against Klebsiella sp. only; the root bark against B. cereus, B. megaterium, B. subtilis, S. -β- haemolyticus, S. typhi, S. dysenteriae and S. sonnei; the root wood extract against B. sereus, B. megaterium, B. subtilis, S. -β- haemolyticus, S. typhi, S. dysenteriae, S. shiga, S. sonnei, Klebsiella sp. and P. aeruginosa; the stem bark extract against B. cereus, B. subtilis, S. -β- haemolyticus and S. sonnei and the stem wood extract against B. cereus, B. megaterium, B. subtilis, S. -β- haemolyticus, S. typhi and S. dysenteriae. According to the intensity of activity against the selected bacteria the D. indica...
University Journal of Zoology, Rajshahi University, 2013
Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem w... more Chloroform extracts of the fruit shell, leaves, root bark, root wood, seeds, stem bark and stem wood of Derris indica Bennet. were tested against the brine shrimp, Artemia salina nauplii. All the test extracts of D. indica were found to be effective. The LC50 values of the extracts were 15312.37, 92.074 and 29.661 ppm for the fruit shell; 60922.83, 61.522 and 23.777 ppm for the leaf; 15312.37, 51.477 and 19.169 ppm for the root bark; 2598.584, 30.480 and 8.260 ppm for the root wood; 545.025,26.730 and 7.719 ppm for the seed; 60922.83, 114.549 and 29.572 ppm for the stem bark and 7734.618, 58.501 and 23.694 ppm for the stem wood at 30 minute, 24 hours and 48 hours post exposures respectively at doses 200, 100, 50, 25, 12.5, 6.25, 3.125 and 1.563 ppm against A. salina . The toxicity of the extracts could be arranged in the order: seed > root wood > root bark> stem wood > leaf > fruit shell > stem bark extract. However, the extracts did not significantly inhibit...
Contraceptive discontinuation is a worldwide incident that may be connected with low incentive to... more Contraceptive discontinuation is a worldwide incident that may be connected with low incentive to avoid pregnancy. Contraceptive discontinuation highly contributes to unplanned pregnancy and unwanted births. Objectives: The objective of this study was to observe the prevalence of discontinuation and switching of contraceptive methods among Bangladeshi married women. In addition, the sociodemographic factors associated with contraceptive discontinuation and switching were assessed. Methods: Secondary cross-sectional data was used in this study. A total of 16,273 married Bangladeshi women of reproductive age (15-49 years) were considered in the present study, from the Bangladesh Demographic and Health Survey, 2011. Logistic regression models were used to determine the relationships between key sociodemographic factors and user status. Results: The prevalence of discontinuation and switching of contraceptive method among women were 38.4% and 15.4%, respectively. The logistic regression model demonstrated that women in early reproductive years (25-29 years and 30-34 years) significantly more often (odds ratio [OR] =0.84 and 0.71, respectively) discontinued use of contraceptives. Significantly higher rates of discontinuation were pronounced among women who used the pill (OR =0.72) and injectable contraception users (OR =0.60), had small family size (OR =0.49), lived in a rural community (OR =1.65), and who were less educated (OR =1.55). Conclusion: Contraceptive discontinuation may reflect an association among less education, currently married, and smaller family size. Awareness of contraceptive methods can decrease the burden of unplanned pregnancies and thus progresses the family planning program.
Chittagong University Journal of Biological Sciences, 2013
The present study was undertaken to investigate the effect of social support on mental health. A ... more The present study was undertaken to investigate the effect of social support on mental health. A total of 100 adult respondents (50 normal, 50 mental patients) of age ranging from 18 to 45 were selected as the sample of the study. The Bangla version of Social Support Scale & Mental Health Questionnaire or GHQ-12 was used in the study. Three aspects of social support were measured: number of social support (SSN), importance of social support (SSI) and satisfaction of social support (SSS). Results of the present study indicated that normal and mental patients differed significantly from each other in terms of social support. This means that the more the social support the better was the respondents mental health. The result also indicated that normal people had the better mental health than mental patients. Gender had no significant effect on normal & mental patients. DOI: http://dx.doi.org/10.3329/cujbs.v3i1.13410 The Chittagong Univ. J. B. Sci.,Vol. 3(1&2):95-107, 2008
Background: Tribolium castaneum (Herbst) is a harmful pest of stored grain and flour-based produc... more Background: Tribolium castaneum (Herbst) is a harmful pest of stored grain and flour-based products in tropical and subtropical region. In the present study, rhizome of Drynaria quercifolia (J. Smith) was evaluated for pesticidal and pest repellency activities against T. castaneum, using surface film method and filter paper disc method, respectively. In addition, activity of the isolated compound 3,4-dihydroxybenzoic acid was evaluated against the pest. Results: Chloroform soluble fraction of ethanol extract of rhizome of D. quercifolia showed significant pesticidal activity at doses 0.88 to 1.77 mg/cm 2 and significant pest repellency activity at doses 0.94 to 0.23 mg/cm 2. No pesticidal and pest repellency activity was found for petroleum ether, ethyl acetate and methanol soluble fractions of ethanol extract as well as for 3,4-dihydroxybenzoic acid. Conclusion: Considering our findings it can be concluded that chloroform soluble fraction of rhizome of D. quercifolia is useful in controlling T. castaneum of stored grain and flour-based products.
University Journal of Zoology, Rajshahi University, 2013
The study was carried out in Chittagong Veterinary and Animal Sciences University (CVASU), Chitta... more The study was carried out in Chittagong Veterinary and Animal Sciences University (CVASU), Chittagong to find out the causes of sudden death of cattle in the Military Dairy Farm, Chittagong. To explore the cause of death, clinical history, clinical signs were recorded. Finally, postmortem was done and samples were collected for laboratory diagnosis. The ruminal pH was 9.0 and the clinical history along with signs suggests possible non-protein nitrogenous compound poisoning. The laboratory diagnosis coincides with nitrate poisoning which focuses possible relationship between non-protein nitrogenous compound and nitrate poisoning. The study recommends maintaining proper cautions to use urea in concentrate feed.DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15403Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 65-68
The plain woven fabrics have been prepared from the blends of sulphonated jute fibre with natural... more The plain woven fabrics have been prepared from the blends of sulphonated jute fibre with natural and syntheti c fibres, and their geometrical, physico-mechanical and drapping properties studied. It is observed that the blended fib re fabrics show improved textile properties, almost similar to those of the cotton fabrics.
Single-tree selection harvesting is frequently used in the tolerant hardwood forests of North Ame... more Single-tree selection harvesting is frequently used in the tolerant hardwood forests of North America, but little is known about how it affects the reproductive success of migratory songbirds. Many songbirds that breed in tolerant hardwoods, including the Rose-breasted Grosbeak (Pheucticus leudovicianus) are experiencing population declines across their breeding ranges. We studied habitat characteristics and reproductive success of Rose-breasted Grosbeaks in stands harvested 0-5, 16-20, and 21-25 years previously and in reference stands (un-harvested for >50 years) in Algonquin Provincial Park, Ontario, Canada (n = 3 per age class). Recently harvested stands had higher cover from regenerative growth and lower sapling, understory, and canopy cover than other treatments, whereas reference stands had higher basal area and sapling cover. Pairing success was significantly lower in the reference stands than in all other post-harvest treatments, and the number of fledglings per successful nest was significantly lower in the reference stands than in the 0-5 years post-harvest stands. Density and population growth rate were significantly positively correlated, suggesting that density may be an adequate indicator of habitat quality for Rosebreasted Grosbeaks in forested landscapes. Older males were present at higher densities, initiated their nests earlier, and produced significantly more fledglings per nest than younger males in all treatments. Habitat characteristics did not differ significantly between nests with second-year and after-second-year males, suggesting greater reproductive output of older males was likely due to experience rather than monopolization of better quality territories. We concluded that single-tree selection harvesting was beneficial to Rose-breasted Grosbeaks in our predominantly forested study area. Population growth rates were below replacement levels in the 21-25 years post-harvest and reference treatments, but populations were stable in the younger regenerating stands. Thus, in a continuously forested landscape this species' declines are probably not attributable to single-tree selection harvesting.
Protein tyrosine phosphatase 1B Aldose reductase Advanced glycation end products a b s t r a c t ... more Protein tyrosine phosphatase 1B Aldose reductase Advanced glycation end products a b s t r a c t Vicenin 2, isolated from a traditionally used medicinal plant Artemisia capillaris, is a 6,8-di-C-glucoside of apigenin which has been previously reported to possess a wide variety of pharmacological activities including antioxidant, anti-inflammatory, anti-cancer, and hepatoprotective. However, there have not been any reports concerning its anti-diabetic potential until now. Therefore, in the present study, we evaluated the anti-diabetic potential of vicenin 2 via a-glucosidase, protein tyrosine phosphatase 1B (PTP1B), rat lens aldose reductase (RLAR), and advanced glycation end products (AGE) formation inhibitory assays. Vicenin 2 strongly inhibited a-glucosidase, PTP1B, and RLAR in the corresponding assays. In addition, vicenin 2 inhibited the formation of both fluorescent AGE and nonfluorescent AGE, e.g., CML, as well as the level of fructosamine in glucose-fructose-induced bovine serum albumin (BSA) glycation. In the test system, vicenin 2 suppressed glycation-induced protein oxidation by attenuating the formation of protein carbonyl groups as well as by inhibiting the modification of protein thiol groups. Moreover, vicenin 2 was found to be a potent inhibitor of glycation-induced formation of amyloid cross-b structures in BSA. Taken together, vicenin 2 might be a useful lead for the development of multiple target-oriented therapeutic modalities for the treatment of diabetes and diabetes-associated complications.
Chemical treatment is an often-followed route to improve the physical and mechanical properties o... more Chemical treatment is an often-followed route to improve the physical and mechanical properties of natural fiber reinforced polymer matrix composites. In this study, the effect of chemical treatment on physical and mechanical properties of jute fiber reinforced polypropylene (PP) biocomposites with different fiber loading (5, 10, 15, and 20 wt%) were investigated. Before being manufactured jute fiber/PP composite, raw jute fiber was chemically treated with succinic anhydride for the chemical reaction with cellulose hydroxyl group of fiber and to increase adhesion and compatibility to the polymer matrix. Jute fiber/PP composites were fabricated using high voltage hot compression technique. Fourier Transform Infrared spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) tests were employed to evaluate the morphological properties of composite. Succinic anhydride underwent a chemical reaction with raw jute fiber which was confirmed through FTIR results. SEM micrographs of the fractured surface area were taken to study the fiber/matrix interface adhesion and compatibility. Reduced fiber agglomeration and improved interfacial bonding was observed under SEM in the case of treated jute fiber/PP composites. The mechanical properties of jute/PP composite in terms of Tensile strength and Young's modulus was found to be increased with fiber loading up to 15 wt% and decreased at 20 wt%. Conversely, flexural strength and flexural modulus increased with fiber loading up to 10 wt% and start decreasing at 15 wt%. The treated jute/PP composite samples had higher hardness (Rockwell) and lower water absorption value compared to that of the untreated ones.
Purpose Accumulating evidence suggests that inhibitors of aldose reductase (AR) may prevent hyper... more Purpose Accumulating evidence suggests that inhibitors of aldose reductase (AR) may prevent hyperglycemiainduced long-term complications in diabetes mellitus. In the present study, we evaluated the AR inhibitory potential of ethanolic (EtOH) extracts from 22 seaweed species. Methods AR inhibitory activities of the selected seaweed species were evaluated using the rat lens aldose reductase (RLAR) inhibitory assay. Results All extracts exhibited RLAR inhibitory activity, which ranged from 5.87 to 92.71 % at a concentration of 50 lg/mL. Since Capsosiphon fulvescens exhibited significant inhibitory potential and is a frequently used foodstuff, it was selected for a detailed investigation using RLAR and advanced glycation end products (AGE) formation inhibitory assays. Among the different solventsoluble fractions, the CH 2 Cl 2 , EtOAc, and n-BuOH fractions showed promising RLAR and AGE formation inhibitory activities. Considering the AR inhibitory potential, CH 2 Cl 2 and EtOAc fractions were selected for chromatographic separation and yielded 11 compounds in which capsofulvesin A, capsofulvesin B, and chalinasterol showed potential RLAR inhibitory activity with the respective IC 50 values of 52.53, 101.92, and 345.27 lM. Kinetic studies revealed that capsofulvesin A and chalinasterol exhibited mixed type inhibition, while capsofulvesin B exhibited noncompetitive inhibition. To our knowledge, this is the first report of AR inhibitory activity of the glycolipids capsofulvesin A and capsofulvesin B. Conclusions Our results clearly indicate the potential RLAR and AGE formation inhibitory activities of C. fulvescens as well as its isolated constituents, which could be further explored to develop therapeutic modalities for the treatment of diabetes and related complications. Keywords Capsosiphon fulvescens Á Rat lens aldose reductase Á Advanced glycation end products Á Diabetic complications Á Green alga Á Glycolipid
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