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RISS 인기검색어
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- 저자 : Gayatri Gogoi (검색결과 4 건)
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Gayatri Gogoi,Swapnali Hazarika 한국화학공학회 2019 Korean Journal of Chemical Engineering Vol.36 No.10
−Lignocellulosic biomass, Water hyacinth (Eichornia crassipes) was pretreated with ionic-liquid (IL)-water mixture using ILs, 1-butyl-3-methylimidazolium acetate [BMIM]OAc, 1-butyl-3-methylimidazolium chloride [BMIM]Cl, 1-butyl-3-methylimidazolium bromide [BMIM]Br and 1-butyl-3-methylimidazolium tetrafluoroborate [BMIM]TFB. Effects of IL anions, IL content, temperature, time and particle size of biomass on dissolution and recovery of lignin were examined and the conditions were optimized. Biomass dissolution and yield of lignin recovery in ILwater mixtures with different anions of 1-butyl-3-methyl imidazolium based ILs follows the order, [BMIM]OAc>[BMIM]Cl>[BMIM]Br>[BMIM]TFB. The role of IL-water mixture for dissolution and recovery of lignin was investigated by characterizations using XRD, SEM, FTIR, TGA and XRF spectroscopy. The Hildebrand solubility parameters of biomass component (lignin) and IL-water mixtures were examined using intrinsic viscosity method. On applying the concept of Hildebrand solubility parameter for dissolution of the biomass in all the IL-water mixtures the results were consistent with the experimental results, which suggests that Hildebrand solubility parameter concept can be applied as primary information in choosing the appropriate solvent for biomass dissolution
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Association of Educational Levels with Survival in Indian Patients with Cancer of the Uterine Cervix
Krishnatreya, Manigreeva,Kataki, Amal Chandra,Sharma, Jagannath Dev,Nandy, Pintu,Gogoi, Gayatri Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.8
The main objective of this paper was to assess the influence of educational level on the survival of uterine cervix cancer patients in our population. A total of 224 patients were registered in our registry, of which 178 had information on stage and different educational levels. The overall median survival (MS) was 23 months, with values of 18.5, 20.7 and 41.3 months for the illiterate, literate and qualified groups, respectively. In the illiterate patients, stage I was seen in 2.6% and stage IV in 11.8%, while in other 2 groups stage I was seen in 10% to 17% of patients at the time of diagnosis. The survival probability at around 50 months was around 42%, 30% and 26% (approximately) for qualified, literates and illiterates respectively [Log Rank (Mantel-Cox) showed p=0.023]. Emphasis on imparting education to females can be a part of comprehensive cancer control programme for improving the overall survival in patients with carcinoma of the uterine cervix in our population.
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Descriptive Epidemiology of Common Female Cancers in the North East India - a Hospital Based Study
Krishnatreya, Manigreeva,Kataki, Aamal Chandra,Sharma, Jagannath Dev,Nandy, Pintu,Talukdar, Abhijit,Gogoi, Gayatri,Hoque, Nazmul Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.24
Background: Cancers of the breast, uterine cervix and ovary are common cancers amongst females of North East India. Not much is known about the descriptive epidemiology of these cancers in our population. The present retrospective analysis was therefore performed. Materials and Methods: The data set available at the hospital based cancer registry of a regional cancer center of North-East India, containing information on patients registered during the period of January 2010 to December 2012, was applied. A total of 2,925 cases of breast, uterine cervix and ovarian cancer were identified. Results: Of the total, 1,295 (44.3%) were breast cancers, 1,214 (41.5%) were uterine cervix and 416 (14.2%) ovarian cancer, median age (range) for breast, uterine cervix and ovary were 45 (17-85), 48 (20-91) and 45 years (7-80), respectively. Some 43.5% of cases with uterine cervix patients were illiterate, 5.4% and 5.7% stage I in breast and cervix respectively and 96.4% of ovarian cancers in advanced stage. Conclusions: Improvement of female education can contribute to increase the proportion of early stage diagnosis of breast and uterine cervix in our population. Any population-based intervention for the detection of cancers of breast, uterine cervix and ovarian cancer should be started early in our population.
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Educational Levels and Delays in Start of Treatment for Head and Neck Cancers in North-East India
Krishnatreya, Manigreeva,Kataki, Amal Chandra,Sharma, Jagannath Dev,Nandy, Pintu,Rahman, Tashnin,Kumar, Mahesh,Gogoi, Gayatri,Hoque, Nazmul Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.24
Background: There are various patient and professional factors responsible for the delay in start of treatment (SOT) for head and neck cancers (HNC). Materials and Methods: This retrospective study was conducted on data for HNC patients registered at the hospital cancer registry in North-East India. All cases diagnosed during the period of January 2010 to December 2012 were considered for the present analysis. Educational levels of all patients were clustered into 3 groups; illiterates (unable to read or write), qualified (school or high school level education), and highly qualified (college and above). Results: In the present analysis 1066 (34.6%) patients were illiterates, 1,869 (60.6%) patients were literates and 145 (4.7%) of all patients with HNC were highly qualified. The stage at diagnosis were stage I, seen in 62 (34.6%), stage II in 393 (12.8%), stage III in 1,371 (44.5%) and stage IV in 1,254 (40.7%). The median time (MT) to the SOT from date of attending cancer hospital (DOACH) was, in illiterate group MT was 18 days, whereas in the qualified group of patients it was 15 days and in the highly qualified group was 10 days. Analysis of variance showed there was a significant difference on the mean time for the delay in SOT from DOACH for different educational levels (F=9.923, p=0.000). Conclusions: Educational level is a patient related factor in the delays for the SOT in HNCs in our population.
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