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Role of self-help groups on socioeconomic development and the achievement of Sustainable Development Goals(SDGs)among rural women in Cooch Behar District,India

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Regional Sustainability 2024年第2期5卷 63-74页

作者： Debanjan BASAK indrajit roy CHOWDHURY Department of Geography and Applied Geography University of North BengalSiliguri734013India

This study examines the transformative role of self-help groups(SHGs)in the socioeconomic development of rural women in Cooch Behar District,India,and their contribution toward achieving Sustainable Development Goals(SDGs)of the United *** this study,we explored the effect of SHGs on rural women by specifically addressing SDGs,such as no poverty(SDG 1),zero hunger(SDG 2),good health and well-being(SDG 3),quality education(SDG 4),and gender equality(SDG 5).Given this issue,a cross-sectional survey and comparison analyses are needed to assess the socioeconomic development of rural women and their awareness level before and after the participation of rural women in *** survey conducted as part of this study was divided into three sections,namely,demographic characteristics,socioeconomic development,and awareness level,with each focusing on different aspects.A group of 400 individuals who were part of SHGs completed the questionnaire survey *** results showed that the participation of rural women in SHGs significantly improved their socioeconomic development and awareness level,as supported by both mean values and t test *** in SHGs and microcredit programs were the major elements that boosted the socioeconomic development of rural women,which also achieves SDGs 1,2,3,4,and *** study revealed that participation in SHGs and related financial services significantly aided rural women in economically disadvantaged communities in accumulating savings and initiating entrepreneurial ***,participation in SHGs was instrumental in enhancing the self-confidence,self-efficacy,and overall self-esteem of rural ***,doing so enabled them to move more freely for work and other activities and to make family and common decisions.

关键词： Self-help groups Rural women Socioeconomic development Sustainable Development Goals(SDGs) Microcredit India

Spatio-temporal variation and relationship between agricultural efficiency and irrigation intensity in a semi-arid region of India

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Regional Sustainability 2024年第2期5卷 123-139页

作者： Shibu DAS Kaushal Kumar SHARMA Suranjan MAJUMDER Debabrata DAS indrajit roy CHOWDHURY Centre for the Study of Regional Development School of Social SciencesJawaharlal Nehru UniversityNew Delhi110067India Department of Geography&Applied Geography University of North BengalDarjeeling734013India Geography Department of Krishnagar Government College Krishnagar741101India

A surging population in Karnataka State,a semi-arid region in India,poses a threat to both food security and livelihood sustainability,necessitating a concentrated effort to bolster agricultural efficiency and achieve United Naton’s Sustainable Development Goal 2(zero hunger).Therefore,in order to address the pressing issue of food scarcity in Karnataka,this study meticulously examined the spatio-temporal variation of agricultural efficiency and irrigation intensity in Karnataka,uncovering its significant dependence of agricultural efficiency on irrigation ***,this study used a one-way analysis of variance(ANOVA)to ascertain significant differences in the means of agricultural efficiency and irrigation intensity during 2004-2005 and *** study showed that the maximum improvement in agricultural efficiency index was recorded in Belgaum(40.24),Gulbarga(24.77),and Yadgir districts(22.92)between 2004-2005 and 2018-2019,which indicated the progressing trend and better scope for agriculture *** the contrary,some districts expressed threat(a decline of above 20.00 of agricultural efficiency index)and needed special care for the improvement of agricultural efficiency in four northern districts(Bagalkot,Bidar,Raichur,and Bijapur),three southern districts(Chitradurga,Chikballapur and Hassan),and two southern districts(Koppal and Gadag)in *** 2004-2005,irrigation intensity varied from 3.19%to 56.39%,with the lowest irrigation intensity in Kodagu District and the highest irrigation intensity in Shimoga *** 2018-2019,irrigation intensity changed from 0.77%to 72.77%,with the lowest irrigation intensity in Kodagu District and the highest in Dakshin Kannad ***,the research scrutinized the complex relationship between agricultural efficiency and irrigation intensity,with the correlation coefficient increased from 0.162 during 2004-2005 to 0.255 during *** implies that in both periods,a low positive

关键词： Agricultural efficiency Irrigation intensity One-way analysis of variance(ANOVA) Food security Karnataka

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纳米颗粒在穿透血脑屏障研究中的应用

深圳大学学报（理工版） 2009年第1期26卷 1-8页

作者：许改霞杨坚泰 roy indrajit 屈军乐陈丹妮王晓梅 Prasad N.Paras 牛憨笨深圳大学光电子学研究所教育部光电子器件与系统重点实验室广东省光电子器件与系统重点实验室深圳市生物医学工程重点实验室深圳518060 美国纽约州立大学水牛城分校激光光子学与生物光子学研究所水牛城美国142603000 深圳大学生命科学学院深圳518060

阐述纳米颗粒在血脑屏障相关的脑部疾病研究中的进展,分析应用在血脑屏障研究中的几类纳米颗粒,分别对治疗、诊断/追踪及多功能纳米颗粒的材料组成、功能特点和应用现状进行评述.介绍在靶向纳米颗粒穿透血脑屏障可视化研究中的成果,指... 详细信息

阐述纳米颗粒在血脑屏障相关的脑部疾病研究中的进展,分析应用在血脑屏障研究中的几类纳米颗粒,分别对治疗、诊断/追踪及多功能纳米颗粒的材料组成、功能特点和应用现状进行评述.介绍在靶向纳米颗粒穿透血脑屏障可视化研究中的成果,指出纳米颗粒在血脑屏障研究中的发展方向.

关键词：纳米颗粒血脑屏障纳米药物载体量子棒磁性纳米粒金纳米颗粒

生物相容性量子点的表征及其在细胞标记中的应用

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光谱学与光谱分析 2010年第5期30卷 1290-1294页

作者：刘夏陈丹妮屈军乐杨坚泰罗永祥 roy indrajit 王晓梅林晓潭钟磊 Prasad N Paras 许改霞牛憨笨深圳大学光电工程学院光电子器件与系统(教育部广东省)重点实验室广东深圳518060 美国纽约州立大学布法罗分校激光光子与生物光子学研究所布法罗美国142603000 深圳大学医学院深圳市生物医学工程重点实验室广东深圳518060

利用无机低温水相合成法制备表面包覆L-半胱氨酸的CdTe/ZnTe核壳型量子点,测量不同溶液以及激发功率激光作用下该量子点的光谱特性。结果表明,该量子点吸收谱和荧光光谱峰值位置不随pH值变化,而荧光光强随pH值升高呈近似线性上升趋势;... 详细信息

利用无机低温水相合成法制备表面包覆L-半胱氨酸的CdTe/ZnTe核壳型量子点,测量不同溶液以及激发功率激光作用下该量子点的光谱特性。结果表明,该量子点吸收谱和荧光光谱峰值位置不随pH值变化,而荧光光强随pH值升高呈近似线性上升趋势;不同缓冲液对该量子点荧光光强无影响,但随孵育时间延长,荧光强度略有下降;在强激光照射下QDs会被快速光漂白,选择适当的激光功率(<100μW),可降低漂白速率,实现长时间稳定测量。因此,该量子点具有较好的生物稳定性和光稳定性,将其与血铁蛋白相连形成靶向共轭纳米粒,可成功用于HeLa细胞标记。细胞内量子点光漂白实验表明,细胞微环境会影响量子点的光稳定性,加速量子点的光漂白。

关键词： CdTe/ZnTe QDs 细胞标记

无限非均质横观各向同性黏弹性介质中具有圆柱孔洞时的振动

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应用数学和力学 2008年第3期29卷 331-341页

作者： D·P·阿查亚因德拉吉·罗伊 P·K·比沃斯班加巴斯英宁学院加尔各答700009西孟印度卡亚尼大学数学系卡亚尼那迪西孟印度甘杰拉巴拉学院数学系 741248743145西孟印度

在无限介质中,研究了横截面为圆的柱形孔洞表面上瞬时径向力或扭转引起的扰动,讨论了高阶黏弹性和横观各向同性弹性参数的非均匀性对扰动产生的影响.根据高阶黏弹性Voigt模型,将非零应力分量简化为径向位移分量项表示,这对横观各向同性... 详细信息

在无限介质中,研究了横截面为圆的柱形孔洞表面上瞬时径向力或扭转引起的扰动,讨论了高阶黏弹性和横观各向同性弹性参数的非均匀性对扰动产生的影响.根据高阶黏弹性Voigt模型,将非零应力分量简化为径向位移分量项表示,这对横观各向同性和高阶黏弹性固体介质是合宜的.导出了含有弹性和黏弹性参数以幂律变化时的应力方程.在瞬时力和扭转边界条件下,求解该方程,求得径向位移分量以及和它相关的应力分量,用修正的Bessel函数项来表示.对瞬时径向力作用问题进行了数值分析,并给出了不同阶的黏弹性和非均质性时的位移和应力变化图形.扭转作用时扰动的数值解可以用类似的方法研究,这里不再深入讨论.

关键词：高阶黏弹性非均质和横观各向同性瞬时力和扭转径向位移应力分量修正的Bessel函数

COVID-19 strict lockdown impact on urban air quality and atmospheric temperature in four megacities of India

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Geoscience Frontiers 2022年第6期13卷 279-290页

作者： Subodh Chandra Pal indrajit Chowdhuri Asish Saha Manoranjan Ghosh Paramita roy Biswajit Das Rabin Chakrabortty Manisa Shit Department of Geography The University of BurdwanBardhaman713104West BengalIndia Center for Rural Development and Innovative Sustainable Technology Indian Institute of Technology KharagpurWest Bengal721302India India Smart Cities Fellow National Institute of Urban AffairsNew Delhi110003India Department of Geography Raiganj UniversityRaiganjUttar Dinajpur733134West BengalIndia

COVID-19 pandemic has forced to lockdown entire India starting from 24th March 2020 to 14th April 2020(first phase), extended up to 3rd May 2020(second phase), and further extended up to 17th May 2020(third phase) with limited relaxation in non-hotspot areas. This strict lockdown has severely curtailed human activity across India. Here, aerosol concentrations of particular matters(PM) i.e., PM,PM, carbon monoxide(CO), nitrogen dioxide(NO), sulphur dioxide(SO), ammonia(NH) and ozone(O), and associated temperature fluctuation in four megacities(Delhi, Mumbai, Kolkata, and Chennai)from different regions of India were investigated. In this pandemic period, air temperature of Delhi,Kolkata, Mumbai and Chennai has decreased about 3 ℃, 2.5 ℃, 2 ℃ and 2 ℃ respectively. Compared to previous years and pre-lockdown period, air pollutants level and aerosol concentration(-41.91%,-37.13%,-54.94% and-46.79% respectively for Delhi, Mumbai, Kolkata and Chennai) in these four megacities has improved drastically during this lockdown period. Emission of PMhas experienced the highest decrease in these megacities, which directly shows the positive impact of restricted vehicular movement. Restricted emissions produce encouraging results in terms of urban air quality and temperature, which may encourage policymakers to consider it in terms of environmental sustainability.

关键词： COVID-19 Aerosol Air pollutant Climate Megacity