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| 1 | Colorectal cancers in ulcerative colitis from a low-prevalence area for colon cancer显示文摘AIM: To determine the incidence and risk factors for colorectal cancer(CRC) in patients with ulcerative colitis from a low prevalence region for CRC.METHODS: Our prospective database yielded a cohort of 430 patients [age: 44 ± 14.6 years; 248 men(57.7%)] with ulcerative colitis(median disease duration 6, range: 1-39 years) for analysis. Of these, 131(30.5%) had left-sided colitis and 159(37%) extensive colitis. Patients with histologically confirmed CRC within the segment with colitis were compared with those without CRC, to determine the risk factors for the development of CRC.RESULTS: Twelve patients(2.8%) developed CRC. The overall incidence density was 3.56/1000 patient-years of disease- 3/1000 in the first 10 years, 3.3/1000 at 10 to 20 years, and 7/1000 at > 20 years. Three of our 12 patients developed CRC within 8 years of disease onset. On univariate analysis, extensive colitis, longer duration of disease, and poor control of disease were associated with development of CRC. On multivariate analysis, duration of disease and extent of colitis remained significant.CONCLUSION: CRC occurred in 2.8% of patients with ulcerative colitis in our population- an incidence density similar to that in Western countries in spite of a low overall prevalence of colon cancer in our population.The risk increased with extent and duration of disease. | Devendra Desai Sudeep Shah Abhijit Deshmukh Philip Abraham Anand Joshi Tarun Gupta Ramesh Deshpande Varun Khandagale Siji George | 2015 | World Journal of Gastroenterology2015，21，12： | 7 |
| 2 | Extreme Rainfall Events and Associated Natural Hazards in Alaknanda Valley, Indian Himalayan Region显示文摘Entire Himalayan region is vulnerable to rain-induced (torrential rainfall) hazards in the form of flash flood, cloudburst or glacial lake outburst flood.Flash floods and cloudburst are generally caused by high intensity rainfall followed by debris flow or landslide often resulting into blockade of river channels. The examples of some major disasters caused by torrential rainfall events in last fifty years are the flash floods of 1968 in Teesta valley, in 1993 and 2000 in Sutlej valley, in 1978 in Bhagirathi and in 1970 in Alaknanda river valleys. The formation of landslide dams and subsequent breaching is also associated with such rainfall events. These dams may persist for years or may burst within a short span of its formation. Due to sudden surge of water level in the river valleys, havoc and panic are created in the down stream. In Alaknanda valley, frequencies of such extreme rainfall events are found to be increasing in last two decades. However, the monthly trend of extreme rainfall events has partly indicated this increase. In most of the years extreme rainfall events and cloudburst disaster were reported inAugust during the later part of the monsoon season. | JOSHI Varun KUMAR Kireet | 2006 | Journal of Mountain Science2006，3，3： | 4 |
| 3 | 喜马拉雅山区压力之下的土地利用状况:系统响应显示文摘引言在印度格尔瓦喜马拉雅山区,一些地方正在经历着耕地向荒地转变的过程。这一区域农业在生态学与经济学上都不能持续发展的主要因素有:靠雨水耕作(只有18.4%的耕地可以灌溉)、小规模、零碎的土地分布在崎岖的地形上(70%的地块<1hm^2,且可能分布在30块从0.01到0.058hm^2不等的小梯田上);由于土地/人口比高而作物的产出/投入比低而使作物产量不高;采用集约经营农业的规模有限;用于畜牧业以及为农田培肥的植被稀少等。该区域居民的主要职业是务农,这就要求大量的饲料以饲养性畜。 | Girish C.S.Negi Varun Joshi 闵庆文 | 1997 | 人类环境杂志1997，26，2： | 0 |
| 4 | 印度喜马拉雅中部阿拉克南达集水区的气候可变性、脆弱性和应对机制显示文摘本文对喜马拉雅中部阿拉克南达集水区进行了研究,发现了其降雨和温度格局的趋势。分析了过去10年的年降雨量、季风降雨及过去几十年的年平均温度。确定趋势使用的是非参数方法(曼肯德尔[Mann-Kendall]和森氏[Sen]方法)。曼肯德尔检验表明降雨下降而温度升高,在两个海拔区,这些趋势在95%的置信区间上呈统计学显著。森氏方法也证实了这个趋势。这个现象必须严肃对待,原因很简单,如果同样的趋势在未来持续下去的话,那么干旱的可能性将大为增加。集水区的人民已经察觉到气候变化的影响,在当地已经开发出了应对机制。 | Kireet Kumar Sneh Joshi Varun Joshi 王胜(译) | 2008 | AMBIO-人类环境杂志2008，37，4： | 0 |
| 5 | Particle Swarm Optimization for Solving Sine-Gordan Equation显示文摘The term‘optimization’refers to the process of maximizing the beneficial attributes of a mathematical function or system while minimizing the unfavorable ones.The majority of real-world situations can be modelled as an optimization problem.The complex nature of models restricts traditional optimization techniques to obtain a global optimal solution and paves the path for global optimization methods.Particle Swarm Optimization is a potential global optimization technique that has been widely used to address problems in a variety of fields.The idea of this research is to use exponential basis functions and the particle swarm optimization technique to find a numerical solution for the Sine-Gordan equation,whose numerical solutions show the soliton form and has diverse applications.The implemented optimization technique is employed to determine the involved parameter in the basis functions,which was previously approximated as a random number in the work reported till now in the literature.The obtained results are comparable with the results obtained in the literature.The work is presented in the form of figures and tables and is found encouraging. | Geeta Arora Pinkey Chauhan Muhammad Imran Asjad Varun Joshi Homan Emadifar Fahd Jarad | 2023 | Computer Systems Science & Engineering2023，45，6： | 0 |
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