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RISS 인기검색어
- 검색키워드
- 저자 : Amal Kumar Mondal (검색결과 4 건)
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Shibdas Maity,Ismail Mondal,Biswanath Das,Amal Kumar Mondal,Jatisankar Bandyopadhyay 대한공간정보학회 2017 Spatial Information Research Vol.25 No.1
Pollution is a global phenomenon which has completely transformed the socio-economic scenario in urban areas all over the world we also care about it. Although the plant has a number of benefits, the lack of treatment of the fly ash generated from this plant has been detrimental to the productivity and quality of the main commercial crops of the surrounding area and is also responsible for some changes in the land use pattern. Studies were made to assess the impact of a thermal power plant located at Kolaghat on vegetation and water in surrounding areas. Pollutant concentration in the area gradually increased along a belt in the prevailing wind direction and a gradient of structural and functional changes in aquatic plants was observed. Natural vegetation in the area varied significantly at different sites and on the basis of plant responses can be classified as insensitive, intermediate and sensitive repetitively. The effect of the power plant emissions on water, soil and eco-physiological characteristics such as chlorophyll content, relative water content, ascorbic acid, it’s seemed to be a function of the pollutant gradient existing in the area. There was a relationship between plant responses and changes in the chemical factors of water, soil and plants due to pollution of Thermal Power Plant. According to pollution tolerance performance index such types of plants species play an importance role for green development in Kolaghat Thermal Power area.
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Somoday Hazra,Sourav Kumar,Goutam Kumar Saha,Amal Chandra Mondal 대한신경정신의학회 2017 PSYCHIATRY INVESTIGATION Vol.14 No.1
Objective: The aims of the present study were to explore the behavioural effects and to understand the possible mode of action of Bacopa monnieri extract (BME) on chronic unpredictable stress (CUS) induced depressive model and the biochemical alterations such as brain derived neurotrophic factor (BDNF), Akt, cyclic-AMP response element binding (CREB) protein level in the hippocampus of rats. Methods: We examined the effects of chronic administration of BME on CUS exposed rats for 28 days. Behavioural changes were assessed by sucrose consumption and open field test to assess the effect of BME on CUS-induced depression. The mechanisms underlying antidepressant like action of BME was further evaluated by measuring levels of BDNF, Akt, and CREB in the hippocampus of rat brain and compared with the standard tricyclic antidepressant drug imipramine (20 mg/kg body weight). Results: Exposure to CUS for 28 days produced depression-like behavior in rats, as indicated by significant decreases in sucrose consumption, locomotor activity including decreased BDNF, Akt and CREB levels in the hippocampus. Daily administration of BME at a dose of (80 mg/kg body weight) significantly reverses the behavioral alteration and restored the normal level of BDNF, total and phospho-Akt, total and phospho CREB in the hippocampus of CUS induced rats as compared to vehicle treated control rats. Conclusion: These findings suggest that BME ameliorates CUS induced behavioural depression in rats and that can be used as a potent therapeutic agent in treating depressive like behavior.
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Sk. Md. Abu Imam Saadi,Ismail Mondal,Subrata Sarkar,Amal Kumar Mondal,Jatisankar Bandyopadhyay 대한공간정보학회 2017 Spatial Information Research Vol.25 No.1
A portable global positioning system (GPS) unit was tested against conventional field techniques for our University Campus plot location the GPS accuracy tested against 3 benchmarks indicated that for the surrounding area the largest average displacement from true position was 48 m form the mean sea level. Five operators were instructed in the use of GPS for waypoint navigation ours University campus and seven plots were then located by each of the operators using either GPS or conventional field navigation. Results indicated that the operator with the least amount of plot-location experience was able to locate plots faster with GPS than by conventional techniques. System portability, satellite availability, canopy interference with signals, and operator biases are cited as moderate encumbrances. Our study documented the diversity of medicinal plants of Vidyasagar University campus and their adjoining area in the district of Paschim Medinipur, South West Bengal, India. This includes 117 species, 108 genera, distributed among 49 plant families under the division Marchantiophyta, Pteridophyta, Monocotyledones and Dicotyledones. Our field survey reportare represent 117 species among them some dominating family’s like- Poaceae (11), Fabaceae (10), Apocynaceae (7), Malvaceae (6), Asteraceae (5), Euphorbiaceae (5), Amarantheceae (4), Araceae (4), Acanthaceae (4). Among the 117 species, presented checklist includes herbs (62), shrubs (22), trees (22), climbers (10) and Branched thallus (1). We take step for conservation of all the plant species to protect from anthropogenic activities.
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Ritabrata Banerjee,Somoday Hazra,Anup Kumar Ghosh,Amal Chandra Mondal 대한신경정신의학회 2014 PSYCHIATRY INVESTIGATION Vol.11 No.3
Objective-The present study aimed to investigate whether graded doses of Bacopa Monniera (BM) extract could produce antidepressant-like effects in chronic unpredictable stress (CUS) induced depression in rats and its possible mechanism(s). Methods-Rats were subjected to an experimental setting of CUS. The effect of BM extract treatment in CUS-induced depression was examined using behavioral tests including the sucrose consumption, open field test and shuttle box escape test. The mechanism underlying the antidepressant-like action of BM extract was examined by measuring brain-derived neurotrophic factor (BDNF) protein and mRNA expression in brain tissues of CUS-exposed rats. Results-Exposure to CUS for 4 weeks caused depression-like behavior in rats, as indicated by significant decreases in sucrose consumption, locomotor activity and escape latency. In addition, it was found that BDNF protein and mRNA levels in the hippocampus and frontal cortex were lower in CUS-treated rats, as compared to controls. Daily administration of the graded doses of BM extract during the 4-week period of CUS significantly suppressed behavioral changes and attenuated the CUS-induced decrease in BDNF protein and mRNA levels in the hippocampus and frontal cortex. Conclusion-The results suggest that BM extract alleviates depression induced by CUS. Present study also confirms that 80–120 mg/kg doses of BM extract have significantly higher antidepressant-like activity.
KCI
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