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Sanoop Paulose,Rajeev Raghavan,Benny K. George 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.53 No.-
The burning characteristics of solid propellants contain ammonium perchlorate (AP) as oxidizer can be modified by the addition of burn rate modifiers (BRM). Herein, we report the synthesis of a new class of BRM based on nano copper oxide (CuO) dispersed on alumina by a sol–gel method. The optimum concentration of CuO:Al2O3 was found to be 80:20 which shows highest catalytic activity for the thermal decomposition of AP due to the good dispersion of MCO over alumina thereby exposing most of the active sites, facilitating the rapid decomposition of AP.
Quality of Life of Postmenopausal Women in Urban and Rural Communities
( Binu Paulose ),( Neetha Kamath ) 대한폐경학회 2018 대한폐경학회지 Vol.24 No.2
Objectives: Menopause is a transitional time in a woman’s life leading to both physical and emotional challenges which affects the quality of life (QOL). Average age of menopause is around 48 years but it strikes Indian women at the age of 40 to 45 years. So, menopausal health demands higher priority in Indian as well as global scenario. The present study was conducted to compare the QOL of postmenopausal women residing in urban and rural communities. Methods: The study adopted quantitative research approach with comparative survey design. The samples were 100 postmenopausal women from rural urban communities selected using non probability purposive sampling technique. Data was collected by interview using demographic performa and menopause specific QOL. Results: The mean QOL score (X<sub>2</sub> = 27.24) of rural women was higher than the mean QOL score (X<sub>1</sub> = 26.34) of urban women. The calculated independent ‘t’ value (t = 0.86; P < 0.05) is lesser than the table value (t<sub>98</sub> = 1.980). There was association between QOL of urban postmenopausal women and monthly income of the family (x<sup>2</sup> = 4.023) was statistically significant at 0.05 levels. Conclusions: There was no significant difference in the QOL of postmenopausal women in rural and urban areas. Indian women are ignorant about the changes taking place in their reproductive system. Religion and culture of our society also inhibits to express these changes. Health care professionals have a great role in addressing these issues to prepare women to face the challenges of reproductive health. (J Menopausal Med 2018;24:87-91)
Nobi Elavumkudi Paulose,Elangovan Dilipan,Thirunavukarassu Thangaradjou 한국해양과학기술원 2013 Ocean science journal Vol.48 No.2
Environmental resource managers and policy makers require a reliable tool to quickly assess the spatial extent of any natural resources, including seagrasses, in order to develop management plans. Even small natural or anthropogenic disturbances can cause severe changes in the distributional pattern of seagrass meadows. Satellite imageries provide a suitable means to detect and assess such changes in space and time in remote and inaccessible areas. Present study aims to understand the distribution pattern of seagrasses after the Indian Ocean Tsunami in 2004 with the help of Indian Remote Sensing satellite data and in situ ground surveys with hand held GPS. As no geospatial data bases were available for the pre-tsunami period, the changes in seagrass cover were compared with the ground estimates available in the literature and also using pre-tsunami satellite data sets. The study found severe loss of seagrasses in the northern Andaman particularly in the Interview and North reef islands and in the Nicobar group of islands including Great Nicobar and Trinket islands. The investigation revealed the presence of 2,943.38 ha of seagrass covering the entire Andaman and Nicobar islands, and that 1,619.41 ha of seagrasses had been denuded during this period. The earthquake and subsequent tsunami in 2004 was the major reason for the loss of seagrasses in these islands. The seagrass spatial map generated in the present study can be used for the development of conservation and management plans and also to restore the denuded seagrasses of this region.
Prevalence of rotavirus diarrhea among hospitalized under-five children
Mathew, M. A.,Paulose, A.,Chitralekha, S.,Nair, M. K.,Kang, G.,Kilgore, P. INDIAN PEDIATRIC 2014 Indian pediatrics Vol.51 No.1
Objectives: To estimate the prevalence of rotavirus diarrhea among hospitalized children less than 5 years of age in Kerala State and to determine the circulating strains of rotavirus in Kerala.Design: Multicenter, cross-sectional study.Setting: Eight representative hospitals in Kunnathunadu Thaluk, Ernakulam district, Kerala.Participants: Children in the age group under 5 yearsMethods: Hospitalized children admitted with acute diarrhea were examined and standardized case report form was used to collect demographic, clinical and health outcome. Stool specimens were collected and ELISA testing was done. ELISA rotavirus positive samples were tested by reverse transcription PCR for G and P typing (CMC Vellore).Results: Among the 1827 children, 648 (35.9%) were positive for rotavirus by the Rotaclone ELISA test. The prevalence of rotavirus diarrhea in infants less than 6 months of age was 24.7%; 6-11 months 31.9%; 12-23 months 41.9%; 24-35 months 46.9%; and 33.3% in 36- 59 months. Rotavirus infections were most common during the dry months from January through May. GIP[8] (49.7%) was the most common strain identified followed by G9P[8] (26.4%), G2P[4] (5.5%), G9P[4] (2.6%) and G12P[6] (1.3%).Conclusions: The prevalence of rotavirus diarrhea among hospitalized children less than 5 years is high in Ernakulam district, Kerala State.
( Mangesh D. Pustode ),( Bhupendra Dewangan ),( V. S. Raja ),( Neeta Paulose ),( Narendra Babu ) 한국부식방식학회 2016 Corrosion Science and Technology Vol.15 No.5
DC potential drop technique was employed during the slow strain rate tests to study the hot salt stress corrosion crack (HSSCC) initiation at 300 and 400 °C. Threshold stresses for HSSCC initiation were found to about 88 % of the yield strength at both temperatures, but the time from crack initiation to final failure (Δtscc) decreased significantly with temperature, which reflects larger tendency for brittle fracture and secondary cracking. The brittle fracture features consisted of transgranular cracking through the primary α grain and discontinuous faceted cracking through the transformed β grains.
Evaluation of Antioxidant Potential and UV Protective Properties of Four Bacterial Pigments
Koshti Rupali,Jagtap Ashish,Noronha Domnic,Patkar Shivali,Nazareth Jennifer,Paulose Ruby,Chakraborty Avik,Chakraborty Pampi 한국미생물·생명공학회 2022 한국미생물·생명공학회지 Vol.50 No.3
In the present study, four distinctly colored bacterial isolates that show intense pigmentation upon brief ultraviolet (UV) light exposure are chosen. The strains are identified as Micrococcus luteus (Milky yellow), Cryseobacterium pallidum (Yellow), Cryseobacterium spp. (Golden yellow), and Kocuria turfanensis (Pink) based on their morphological and 16S rDNA analysis. Moderate salinity (1.25%), 25-37℃ temperature, and pH of 7.2 are found to be the most favorable conditions of growth and pigment production for all the selected isolates. The pigments are extracted using methanol: chloroform (1:1) and the purity of the pigments are confirmed by high-performance liquid chromatography (HPLC) and thin-layer chromatography (TLC). Further, Fourier transform infrared (FTIR) and UV-Visible spectroscopy indicate their resemblance with carotenoids and flexirubin family. The antioxidant activities of the pigments are estimated, and, all the pigments have shown significant antioxidant efficacy in 2,2'-azino-bis(3-ethylbenzothiazoline- 6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picryl-hydrazyl (DPPH), and ferric reducing antioxidant power (FRAP) assays. The UV protective property of the pigments is determined by cling-film assay, wherein, at least 25% of UV sensitive Escherichia coli survive with bio-pigments even after 90 seconds of UV exposure compared to control. The pigments also hold a good sun protective factor (SPF) value (1.5- 4.9) which is calculated with the Mansur equation. Based on these results, it can be predicted that these bacterial pigments can be further developed into a promising antioxidant and UV-protectant for several biomedical applications.