IOSR-JESTFT   Volume-6 ~ Issue-4 ~ Sep–Oct 2013

Abstract: This paper deals with the uses of zeolites and zeolite-based materials for developing gas sensors. The purpose of using zeolites in sensors is usually to improve sensitivity and selectivity by preferential adsorption, in addition, thin films assure a fast response time of the sensor. The compound or cluster sensing towards a gas assembled into the cages or channels of zeolites property of the materials were disussed in this paper. The possibility of these materials is tinted and avenues for further research are suggested. Keywords: Zeolite; gas sensing; guest/host materials; absorption.

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[7]. Payra, P.; Dutta, P.K. Development of a dissolved oxygen sensor using tris(bipyridyl) ruthenium (II) complexes entrapped in highly siliceous zeolites. Microporous Mesoporous Mat. 2003, 64,109-118.
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Abstract: Indiscriminate hill cutting is one of the major environmental problem in Sylhet city. As this city has many hills and hillocks (Tilas), its environment is closely related with hills. So massive indiscriminate hill cutting can create environmental problems. Sylhet is an Earthquake prone area of Bangladesh and it is situated in the most risky zone of seismic map of the country. This paper is an investigation of Indiscriminate cutting of hills in Sylhet city. The main causes of hill cutting, public perception of the people living on hilly areas about hill cutting, awareness level of them are the main focus point of this paper. We also tried to find out the awareness level condition of people buying plots from the housing companies in hilly areas.

Keywords: Hill Cutting, Hills and Hillocks, Sylhet City, Hill Cutting awareness.

[1] SCC: Official information (unpublished),Sylhet City Corporation, Sylhet, Bangladesh. (2010)

[2] Bangladesh National Building Code (BNBC), "Bangladesh National Building Code", 1993.

[3] M A Ansary & M. Sharfuddin , " Earthquake Hazards scenario in Greater Sylhet Region" proc. H & H 2000 conference ,Dhaka and Exter, 238.

[4] Bangladesh Meteorological Department, Dhaka, Bangladesh.

[5] Amanullah Bin Mahmood and Mamunul H. Khan, "Landslide Vulnerability of Bangladesh Hills and Sustainable Management Options: A Case Study of 2007 Landslide in Chittagong City". International Seminar Management and Mitigation of Water Induced Disaster 21-22 April 2008 Kathmundu, Nepal.

[6] Md. Sirajul Islam, 2G. M. Jahid Hasan and 3Md. Aktarul Islam Chowdhury "Destroying hills in the northeastern part of Bangladesh: A qualitative assessment of extent of the problem and its probable impact" Int. J. Environ. Sci. Tech, Winter 2006, Vol. 2, No. 4, pp. 301-308

[7] Barrister M. Omar Bin Harun Khan, Cutting of hills: Lack of law or lack of law enforcement?, Law and Our rights , Issue No: 27 July 7, 2007, The Daily Star.

[8] Md. Sirajul Islam, 2G. M. Jahid Hasan and 3Md. Aktarul Islam Chowdhury "Destroying hills in the northeastern part of Bangladesh: A qualitative assessment of extent of the problem and its probable impact" Int. J. Environ. Sci. Tech, Winter 2006, Vol. 2, No. 4, pp. 301-308

Abstract: This paper presents the results of the determination of Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, and Zn in 30 samples of roasted cashew nuts from six towns in Southeastern Nigeria. The elements were determined by flame atomic absorption spectroscopy with background correction after ashing of the nuts at 450 °C and mineralizing with acids. The results (mg/kg; dry matter) showed that K (overall mean) occurred at 6200±130, Mg at 2900±110, Na at 2600±180, Ca at 360±40, Zn at 71±6, Fe at 69±6, Cu at 23±2, Mn at 21±2, Ni at 0.25±0.07 and Cr at 0.078±0.036. Consumption of cashew nuts in the two retail weights of approximately 35 and 79 g will provide (mg/day): 217–489 K, 102–229 Mg, 91–205 Na, 13–28 Ca, 2.5–5.6 Zn, 2.4–5.5 Fe, 0.8–1.8 Cu and 0.7–1.7 Mn. Compared to the Reference Daily Intake, these values will amount (%) to 40-90 for Cu, 35-85 for Mn and 13-31 for Fe. PCA analysis revealed interrelationships among the metals and suggested that the metals were of natural sources. Roasted cashew nuts would therefore serve as a dietary source of essential elements and pose no toxicological health risks.

Keywords: Foods, micronutrients, Nigeria, roasted cashew nut, trace elements

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Abstract: The change of biophysical and social environment as the effect of the change and the conversion of forest area into coal mining area has supported the villagers of forest village around the coal mining area to adapt so they can still exist as in a community and improve their welfare. This study aims to (1) analyze coal based forest village community's behavioral adaptation to the change of biophysical and social environment due to the change and conversion of the forest area into coal mining area (2) analyze all the strategic behaviors of the community of coal based forest village community in adapting to the change of biophysical and social environment because of the change and the conversion of the forest area into the coal mining area (3) formulate strategic adaptation models of the villagers of coal-based forest village towards the change of biophysical and social environment due to the change and conversion of forest area into coal mining area. This research was conducted in Tanah Bumbu Regency, South Kalimantan. The research method used to achieve these goals involved Miles and Huberman qualitative approach.

Keywords: Adaptation behaviors, Strategic behaviors, and Strategic adaptations

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