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RISS 인기검색어
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- 저자 : Suman Sen (검색결과 2 건)
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Effect of Psycosomatic Factors in Oral Diseases
Suman Sen,Ankit Saha,Tulsi Singh 대한예방치과학회 2014 International Journal of Clinical Preventive Denti Vol.10 No.2
Interaction between body and mind and its disease is a constant process. Psychosomatic disorders are manifestations of physical imbalance in which emotional components have a strong influence. Oral mucosa shows the indirect result of an emotional problem. Psychosomatic factor plays an important role in the causation of different forms of mucosal changes Major risk factor that could influence the initiation and progression of oromucosal diseases are emotional factor like stress, anxiety and depression. Most human studies have found significant associations between certain psychosocial factors and oral disease like lichen planus, apthous ulcer, burning mouth syndrome, nectrotizing gingivitis and periodontal diseases.
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Studies on thermal and swelling properties of Poly (NIPAM-co-2-HEA) based hydrogels
Shekhar, Suman,Mukherjee, M.,Sen, Akhil Kumar Techno-Press 2012 Advances in materials research Vol.1 No.4
Thermoresponsive hydrogels based on N-Isopropylacrylamide (NIPAM) and 2-Hydroxyethylacrylate (HEA) were prepared by free radical polymerization. The hydrogels were characterized by elemental (CHN) analysis, differential scanning calorimetry (DSC) and thermo gravimetric analysis (TGA). DSC thermogram showed two endothermic transitions which are due to hydration of water present in different environments. One near $0^{\circ}C$ called melting transition of ice and was used to calculate the quantitative determination of the amounts of freezing and non freezing water. The other transition above the ambient temperature was due to the combination of hydrophobic hydration and hydrophilic hydration which changes with the copolymer compositions. Swelling and deswelling studies of the hydrogels were carried out using the aqueous media, salt and urea solutions. The experimental results from swelling studies revealed that copolymers have lower rates of swelling and deswelling than the homopolymer.
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