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Analysis of groundwater level trend in Jakham River Basin of Southern Rajasthan

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Journal of Groundwater Science and Engineering 2022年第1期10卷 1-9页

作者： Vinay kumar Gautam mahesh Kothari P.K.Singh S.R.Bhakar K.K.Yadav Department of Soil and Water Engineering CTAEMPUATUdaipur-313001(Raj.)India

Groundwater accounts for about half of the water use for irrigation in *** fluctuation pattern of the groundwater level is examined by observing rainfall replenishment and monitoring *** southern part of Rajasthan has experienced abrupt changes in rainfall and has been highly dependent on groundwater over *** study presents the impact of over-dependence on groundwater usage for irrigation and other purposes,spatially and ***,the objective of this study is to examine the groundwater level trend by using statistical analysis and geospatial *** factor was also studied in groundwater level fluctuation during *** analyze the influence of each well during recharge or withdrawal of groundwater,thiessien polygonswere generated from *** the Jakham River basin,75 wells have been identified for water level trend study using the Mann-Kendall statistical *** statistics of trend analysis show that 15%wells are experiencing water level decline in pre-monsoon,while very low percentage of wells have such trend during post-monsoon *** average rate of water level decline is 0.245 m/a in pre-monsoon and 0.05 m/a in *** aquifer recharge potential is also decreasing by *** is expected that such type of studies will help the policy makers to adopt advanced management practices to ensure sustainable groundwater resource management.

关键词： Groundwater Trend analysis Rainfall Kendal tau Slope p value Recharge Pre-and postmonsoon

Radiation dose analysis of computed tomography coronary angiography in Children with Kawasaki disease

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世界临床儿科杂志 2023年第4期12卷 230-236页

作者： mahesh Chandra Bhatt Manphool Singhal Rakesh kumar Pilania Subhash Chand Bansal Niranjan Khandelwal Pankaj Gupta Surjit Singh Department of Radiodiagnosis and Imaging Postgraduate Institute of Medical Education and ResearchChandigarh 160012India Pediatric Allergy Immunology Unit Department of PediatricsAdvanced Pediatrics CentrePost Graduate Institute of Medical Education and ResearchChandigarh 160012India

BACKGROUND There is evolving role of computed tomography coronary angiography(CTCA)in non-invasive evaluation of coronary artery abnormalities in children with Kawasaki disease(KD).Despite this,there is lack of data on radiation dose in this group of children undergoing *** To audit the radiation dose of CTCA in children with *** Study(December 2013-February 2018)was performed on dual source CT scanner using adaptive prospective *** dose length product(DLP in ***)was *** radiation dose(millisieverts-mSv)was calculated by applying appropriate age adjusted conversion factors as per recommendations of International Commission on Radiological *** dose was compared across the groups(0-1,1-5,5-10,and>10 years).RESULTS Eighty-five children(71 boys,14 girls)with KD underwent *** median age was 5 years(range,2 mo-11 years).Median DLP and effective dose was 21 ***,interquartile ranges(IQR)=15(13,28)and 0.83 mSv,IQR=0.33(0.68,1.01)*** DLP increased significantly across the age *** effective dose in infants(0.63 mSv)was significantly lower than the other age groups(1-5 years 0.85 mSv,5-10 years 1.04 mSv,and>10 years 1.38 mSv)(P<0.05).There was no significant difference in the effective dose between the other groups of *** the CTCA studies were of diagnostic *** child required a repeat *** CTCA is feasible with submillisievert radiation dose in most children with ***,CTCA has the potential to be an important adjunctive imaging modality in children with KD.

关键词： Computed tomography coronary angiography Coronary artery abnormalities Dual source computed tomography Kawasaki disease Radiation exposure

Chemical composition and source apportionment of PM2.5 and PM2.5-10 in Trombay （Mumbai, India）, a coastal industrial area

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Particuology 2018年第2期16卷 143-153页

作者： Sandeep Police Sanjay kumar Sahu mahesh Tiwari Gauri Girish Pandit Environmental Monitoring and Assessment Section Bhabha Atomic Research Centre Mumbai 400085 India Homi Bhabha National Institute Anushakti Nagar Mumbai 400094 India

PM2.5 and PM2.5 lo concentrations, elemental constituents, and sources in a densely populated coastal industrial area （Trombay, Mumbai） were investigated in 2010 and *** PM2.s and PM2.s lo concentra- tions were 13.50-71.60 and 22.40-127.78 p^g/m3, respectively. The daily PM25 concentrations exceeded the Indian Central Pollution Control Board limit （60 μg/m3） several days in winter. Of the elements analyzed, Si then Al had the highest concentrations in PM2.5- 10, but black carbon then Si had the highest concentrations in PM2.s. The element concentrations varied widely by season. Al, Ca, Fe, Si, and Ti con- centrations were highest in summer, Cl, Mg, and Na concentrations were highest in the monsoon season, and the other trace metal concentrations in both PM2.5 and PM2.5-10 were highest in winter. The PM2.5 and PM2.5-10 sources were apportioned by positive matrix factorization. PM2.5 and PM2.5-10 had six dominant sources, crustal material （8.7% and 25.3%, respectively）, sea salt spray （6.1% and 15.0%, respectively）, coal/biomass combustion （25.5% and 13.8%, respectively）, fuel oil combustion （19.0% and 11.2%, respectively）, road traffic （ 17.7% and 12.6%, respectively）, and the metal industry （ 10.6% and 7.0%, respectively）. Anthropogenic sources clearly contributed most to PM2.5 but natural sources contributed most to PM2.5-10.

关键词： Trombay PM2.5 PM2.5-10 Black carbon Metals Positive matrix factorization

Single center experience of capsule endoscopy in patients with obscure gastrointestinal bleeding

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World Journal of Gastroenterology 2011年第6期17卷 774-778页

作者： mahesh kumar Goenka Shounak Majumder Sanjeev kumar Pradeepta kumar Sethy Usha Goenka Institute of Gastroenterology Apollo Gleneagles Hospital

AIM:To identify optimum timing to maximize diagnostic yield by capsule endoscopy (CE) in patients with obscure gastrointestinal bleeding (OGIB).METHODS:We identified patients who underwent CE at our institution from August 2003 to December *** medical records were reviewed to determine type of OGIB (occult,overt),CE results and complications,and timing of CE with respect to onset of ***:Out of 385 patients investigated for OGIB,284 (74%) had some lesion detected by *** 222 patients (58%),definite lesions were detected that could unequivocally explain *** bowel ulcer/erosions secondary to Crohn's disease,tuberculosis or non-steroidal anti-inflammatory agent use were the commonest lesions *** with overt GI bleeding for < 48 h before CE had the highest diagnostic yield (87%).This was significantly greater (P < 0.05) compared to that in patients with overt bleeding prior to 48 h (68%),as well as those with occult OGIB (59%).CONCLUSION:We established the importance of early CE in management of *** within 48 h of overt bleeding has the greatest potential for lesion detection.

关键词：消化道出血患者原因内镜胶囊非甾体抗炎药发病类型行政

Immediate in-hospital outcomes after percutaneous revascularization of acute myocardial infarction complicated by cardiogenic shock

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世界心脏病学杂志:英文版(电子版) 2023年第9期15卷 439-447页

作者： Bashir Ahmed Solangi Jehangir Ali Shah Rajesh kumar mahesh kumar Batra Gulzar Ali Muhammad Hassan Butt Ambreen Nisar Nadeem Qamar Tahir Saghir Jawaid Akbar Sial Department of Adult Cardiology National Institute of Cardiovascular DiseasesKarachi 75510Pakistan

BACKGROUND Cardiogenic shock(CS)is a life-threatening complication of acute myocardial infarction with high morbidity and mortality *** percutaneous coro-nary intervention(PCI)has been shown to improve outcomes in patients with *** To investigate the immediate mortality rates in patients with CS undergoing primary PCI and identify mortality *** We conducted a retrospective analysis of 305 patients with CS who underwent primary PCI at the National Institute of Cardiovascular Diseases,Karachi,Pak-istan,between January 2018 and December *** primary outcome was immediate mortality,defined as mortality within index ***-variate and multivariate logistic regression analyses were performed to identify predictors of immediate *** In a sample of 305 patients with 72.8%male patients and a mean age of 58.1±11.8 years,the immediate mortality rate was found to be 54.8%(167).Multivariable analysis identified Killip class IV at presentation[odds ratio(OR):2.0;95%co-nfidence interval(CI):1.2-3.4;P=0.008],Multivessel disease(OR:3.5;95%CI:1.8-6.9;P<0.001),and high thrombus burden(OR:2.6;95%CI:1.4-4.9;P=0.003)as independent predictors of immediate *** Immediate mortality rate in patients with CS undergoing primary PCI remains high despite advances in treatment *** class IV at presentation,multivessel disease,and high thrombus burden(grade≥4)were identified as independent predictors of immediate *** findings underscore the need for aggressive management and close monitoring of patients with CS undergoing primary PCI,particularly in those with these high-risk characteristics.

关键词： Acute myocardial infarction Cardiogenic shock Primary percutaneous coronary intervention Mortality Predictors

Surveillance of antibiotic sensitivity pattern in chronic suppurative otitis media of an Indian teaching hospital

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2019年第2期5卷 88-94页

作者： mahesh Chandra Sahu Santosh kumar Swain IMS and SUM Hospital Siksha'O'Anusandhan UniversityK8KalinganagarBhubaneswar751003OdishaIndia Department of Otorhinolaryngology IMS and SUM HospitalSiksha'O'Anusandhan UniversityK8KalinganagarBhubaneswar751003OdishaIndia

Introduction:Chronic suppurative otitis media (CSOM) is a common problem in worldwide and untreated CSOM leads to fatal complications like facial nerve paralysis,lateral sinus thrombosis,labyrinthitis,meningitis and brain abscess in developing country like ***:To isolate causative bacteria and antibiotic sensitivity pattern for CSOM and to know the prevalence of extended spectrum beta lactamases (ESBL) and Metallobetalactamases (MBL) in CSOM ***:A total of 500 ear swabs of clinical suspected CSOM patients were cultured on specific cultured medium and identified the bacteria with conventional *** all the identified bacteria were subjected with specific antibiotics by the Kirby-Bauer's method to know the resistance pattern of *** and MBL strains were detected by double disc diffusion ***:A total of 384 bacteria were isolated from 500 CSOM patients,among them 86 *** (22.40%),112 Staphylococcus aureus (29.17%),53 *** (13.80%),32 *** (18%),26 *** (6.77%),24 *** (6.25%),23 *** (5.99%),18 *** (4.69%) and 10 *** (2.60%) identified with conventional *** antibiotic disc diffusion methods 74.22% ESBL strains and 9.90%MBL strains were *** resistant strains of *** (86/384,22.40%) were more prevalent than those of *** (112/384,29.17%) and other bacteria in ear *** and vancomicin could control to gram negative bacteria and gram positive bacteria ***:Continuous and periodic evaluation of microbiological profile and antimicrobial sensitivity pattern of bacterial is essential for optimum management of CSOM patients.

关键词： Antibiotics Chronic suppurative otitis media Gram negative bacteria ESBL MBL

A New Voltage Control Strategy to Improve Performance of DSTATCOM in Electric Grid

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CES Transactions on Electrical Machines and Systems 2020年第4期4卷 295-302页

作者： Chandan kumar mahesh KMishra Saad Mekhilef Electronics and Electrical Engineering Department Indian Institute of Technology GuwahatiIndia Electrical Engineering Department Indian Institute of Technology MadrasChennaiIndia Department of Electrical Engineering University of MalayaMalaysia

A new voltage control strategy of distribution static compensator(DSTATCOM)has been proposed in this paper for electric grid *** proposed control scheme combines two methods of DSTATCOM operation to improve its *** power factor and voltage magnitude as degree of freedom,the DSTATCOM provides features such as mitigation of voltage and current harmonics,balancing of source currents,improvement of power factor,voltage regulation during voltage sag and swell,reduction in inverter losses,and control of load power to achieve energy *** performance of proposed DSTATCOM control is better as compared to its conventional operation at any time of *** simulation and experimental results validate the performances.

关键词： Reactive power DSTATCOM multifunctional

Current Status of Conventional and Molecular Interventions for Blast Resistance in Rice

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Rice science 2017年第6期24卷 299-321页

作者： Deepti SRIVASTAVA Md SHAMIM mahesh kumar Anurag MISHRA Pramila PANDEY Deepak kumar Prashant YADAV Mohammed Harrish SIDDIQUI Kapildeo Narayan SINGH Integral Institute of Agricultural Science and Technology Integral University Lucknow 226021 India Department of Molecular Biology and Genetic Engineering Dr. Kalam Agricultural College Bihar Agricultural University Sabour Bhagalpur Bihar 813210India Department of Agriculture Biotechnology Sardar Vallabhbhai Patel University of Agriculture and Technology Modipuram Meerut 250110 India Department of Plant Molecular Biology and Genetic Engineering Narendra Deva University of Agriculture and Technology Kumarganj Faizabad 224229 India Indian Council of Agricultural Research Directerate of Rapeseed mustard Research Bharatpur Rajasthan 321303 India

Pyricularia oryzae anamorph of Magnaporthe oryzae is one of the most notorious fungal pathogens causing severe economic loss in rice production worldwide. Various methods, viz. cultural, biological and molecular approaches, are utilized to counteract this pathogen. Moreover, some tolerant or resistant rice varieties have been developed with the help of breeding programmes. Isolation and molecular characterization of different blast resistance genes now open the gate for new possibilities to elucidate the actual allelic variants of these genes via various molecular breeding and transgenic approaches. However, the behavioral pattern of this fungus breakups the resistance barriers in the resistant or tolerant rice varieties. This host-pathogen barrier will be possibly countered in future research by comparative genomics data from available genome sequence data of rice and M. oryzae for durable resistance. Present review emphasized fascinating recent updates, new molecular breeding approaches, transgenic and genomics approaches(i.e. mi RNA and genome editing) for the management of blast disease in rice. The updated information will be helpful for the durable, resistance breeding programme in rice against blast pathogen.

关键词： backcross breeding gene pyramiding allele mining transgenic technology rice blast resistance CRISPR/Cas9 molecular breeding bioinformatics approach

Analysis of Power in an Argon Filled Pulsed Dielectric Barrier Discharge

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Plasma Science and Technology 2013年第7期15卷 635-639页

作者： U.N.PAL Pooja GULATI Ram PRAKASH mahesh kumar V.SRIVASTAVA S.KONAR Microwave Tubes Division CSIR-Central Electronics Engineering Research Institute (CSIR-CEERI)Pilani Rajasthan-333031 India Birla Institute of Technology (BIT) Mesra Ranchi Jharkhand-835215 India

In this paper an argon filled coaxial dielectric barrier discharge （DBD） has been studied to understand the detail of power transfer from a unipolar square pulse to plasma during discharge. A dielectric barrier discharge based diffuse pulse discharge and its electrical charac-teristics are investigated. A quartz coaxial DBD tube filled at different pressures is used in the experiment. A unipolar pulse voltage of different peak voltages and frequencies has been applied to the discharge electrodes for the generation of microdischarges. Two current pulses are used for two consecutive discharges per applied voltage pulse. The second discharge, which occurs at the falling flank of the voltage pulse, is induced by the charges stored on the dielectric barrier during the first discharge. It has been deduced that the power supplied to ignite the first discharge is partly stored to ignite the second discharge when the applied voltage decays. This process ul- timately leads to much improved power transfer to the plasma. The knowledge obtained from dynamic processes of the DBDs in the discharge gap explains quantitatively the mechanism of ignition, development and extinction of the DBDs.

关键词： DBD non-equilibrium plasma non-thermal plasma diffuse pulse discharge,microdischarges