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Evaluation of hydro-chemistry in a phreatic aquifer in the Vindhyan Region, India, using entropy weighted approach and geochemical modelling

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Acta Geochimica 2023年第4期42卷 648-672页

作者： ashutosh mishra Aman Rai Prabuddh Kumar mishra Suresh Chand Rai Department of Geography Delhi School of EconomicsUniversity of DelhiDelhi 110027India Department of Geography Shivaji CollegeUniversity of DelhiDelhi 110027India

Groundwater quality monitoring and geochemical characterization in the phreatic aquifer are critical for ensuring universal and equitable access to clean,reliable,and inexpensive drinking water for *** research was intended to investigate the hydrogeochemical attributes and mechanisms regulating the chemistry of groundwater as well as to assess spatial variation in groundwater quality in Satna district,*** accomplish this,the groundwater data comprising 13 physio-chemical parameters from thirty-eight phreatic aquifer locations were analysed for May 2020 by combining entropy-weighted water quality index(EWQI),multivariate statistics,geochemical modelling,and geographical information *** findings revealed that the groundwater is fresh and slightly *** was a significant concern as 57.89% of samples were beyond the permissible limit of the World Health *** dominance of ions were in the order of Ca^(2+)> Na^(+)> Mg^(2+)> K^(+) and HCO_(3)^(-)> SO_(4)^(2-)> Cl^-> NO_(3)^(-)> F^(-).Higher concentration of these ions is mainly concentrated in the northeast and eastern *** correlation analysis and principal component analysis(PCA) demonstrated that both natural and human factors regulate groundwater chemistry in the *** analysis of Q-mode agglomerative hierarchical clustering highlighted three significant water ***-HCO_3 was the most prevalent hydro-chemical facies in all three *** modelling through various conventional plots indicated that groundwater chemistry in the research region is influenced by the dissolution of calcite/dolomite,reverse ion exchange,and by silicate and halite *** data of the study area disclosed that 73.69% of the samples were appropriate for *** to high salinity,Magnesium(Mg^(2+)),Nitrate(NO_(3)^(-)),and Bicarbonate(HCO_(3)^(-)) concentrations,the north-central and north-eastern regions are particularly *** findings of the study m

关键词： Groundwater quality assessment EWQI Multivariate statistical analysis Geochemical modelling Hydrogeochemical processes Saturation index

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Investigation of structural phase evolution and dielectric response of Co-doped BaTiO_(3)

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Journal of Advanced Dielectrics 2018年第4期8卷 14-19页

作者： Amantulla Mansuri Ilyas Noor Bhatti Imtiaz Noor Bhatti ashutosh mishra School of Physics Devi Ahilya University Indore 452001India Department of Physics Jamia Millia Islamia New Delhi 110025India School of Physical Sciences Jawaharlal Nehru University New Delhi 110067India

In the present study,we have synthesized polycrystalline samples of BaTi_(1-x)Co_(x)O_(3)(BTCO)(x=0,0.01,0.03,0.05,0.07 and 0.10)with standard solid state reaction *** obtained samples are characterized by X-ray diffraction(XRD)and Raman spectroscopy for structural *** detailed structural analysis has been performed by Rietveld refinement using Fullprof *** observed an increase in lattice parameters,which results due to substitution of Co2t with large ionic radii(0.9Å)for smaller ionic radii(0.6Å)***,peak at 45.5°shifts to 45°on Co doping,which is due to structure phase transition from tetragonal to *** study infers that the intensity of characteristic peaks decreases and line width increases with Co *** bands linked with the tetragonal structure(305 cm1)decreased due to the tetragonal-to-cubic phase transition with Co *** structural study reveals the expansion of BTCO unit cell and tetragonal-to-cubic phase transformation takes *** results from different characterization techniques are conclusive and show structural evolution with Co *** samples are further characterized by dielectric spectroscopy,dielectric measurement reveals the increase of dielectric constant and transition T_(c)-125° is observed for Barium titanate(BaTiO3),whereas transition disappears with Co *** temperature and frequency-dependent tangent loss is also studied.

关键词： Oxides dielectric spectroscopy Raman spectroscopy structural characterization.

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Improving Linear Type Traits to Improve Production Sustainability and Longevity in Purebred Sahiwal Cattle

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Journal of Agricultural Science and Technology(A) 2012年第5期2卷 636-639页

作者： ashutosh Dubey Sharad mishra Vikas Khune Pavan K. Gupta Bhooshan K. Sahu Arvind K. Nandanwar Department of Livestock Production and Management College of Veterinary Sciences & Animal Husbandry lndira GandhiAgricultural University Raipur 492001 Chhattisgarh India

In order to determine various traits which need to be improved for improving the productive life span and longevity, purebred Sahiwal cows available at bull mother experimental farm and cattle breeding farm located at Veterinary College, Durg, Chhattisgarh, India were used. For present investigation, 17 linear type traits were measured, scaled and scored as per the guidelines of International Committee for Animal Recording （2001）. The average score point （ASP） under 1-9 point scale score system along with respective observed group for different linear type traits were stature （6.88; taller）, chest width （5.30; intermediate）, body depth （4.11; intermediate）, rump angle （4.27; intermediate）, rump width （5.09; intermediate）, rear leg set-side view （4.55; intermediate）, rear leg set-rear view （5.95; intermediate）, foot angle （5.66; intermediate）, udder depth （5.71; intermediate）, rear udder height （4.90; intermediate）, udder balance （5.27; intermediate）, udder cleft （3.75; intermediate）, fore udder attachment （5.55; intermediate）, teat length （3.54; intermediate）, fore teat placement （5.33; intermediate）, rear teat placement （6.37; intermediate） and teat thickness （2.76; narrow）. For most of the traits, ASP which lies near midpoint （i.e. near five） is known to be ideal for dairy type cattle. Moreover, some traits also showed the presence of undesirable ASP. Hence, the traits such as body depth, rump angle, foot angle, udder depth, rear udder height, udder cleft, fore udder attachment, teat length, and teat thickness needs to be improved for improving the production sustainability and herd life of Sahiwal cattle. Thus, present investigation gives explicit clue to incorporate these conformation traits in selection program of this valuable germplasm commonly found in Southern part of Asia （India, Pakistan, Srilanka, etc.）.

关键词： Sahiwal linear type traits production sustainability and longevity.

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Practice patterns among ophthalmic surgeons in treating concomitant oculoplastic conditions in preoperative period:A questionnaire-based study

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World Journal of Clinical Cases 2025年第1期13卷 29-37页

作者： Bijnya Birajita Panda Chitaranjan mishra Bhagabat Nayak Avik Kumar Roy Logesh Balakrishnan Priyadarshini mishra Department of Ophthalmology All India Institute of Medical SciencesBhubaneswar 751019OdishaIndia Department of Vitreo-Retina Trilochan NetralayaSambalpur 768004India Department of Glaucoma Services LV Prasad Eye InstituteBhubaneswar 751013India Department of Statistics Apollo HospitalsChennai 823104India

BACKGROUND Addressing oculoplastic conditions in the preoperative period ensures both the safety and functional success of any ophthalmic *** oculoplastic conditions,like nasolacrimal duct obstruction,have been extensively studied,whereas others,like eyelid malposition and thyroid eye disease,have received minimal or no *** To investigate the current practice patterns among ophthalmologists while treating concomitant oculoplastic conditions before any subspecialty ophthalmic *** A cross-sectional survey was disseminated among ophthalmologists all over *** survey included questions related to pre-operative evaluation,anaesthetic and surgical techniques preferred,post-operative care,the use of adjunctive therapies,and patient follow-up *** A total of 180 ophthalmologists responded to the *** practitioners(89%)felt that the ROPLAS test was sufficient during pre-operative evaluation before any subspecialty surgery was *** most common surgical techniques employed were lacrimal drainage procedures(Dacryocystorhinostomy)(63.3%),eyelid malposition repair(36.9%),and ptosis repair(58.7%).Post-operatively,47.7%of respondents emphasized that at least a 4-week gap should be maintained after lacrimal drainage procedures and eyelid ***-seven percent of ophthalmologists felt that topical anaesthetic procedures should be preferred while performing ocular surgeries in thyroid eye disease *** Approximately 50%of ophthalmologists handle prevalent oculoplastic issues themselves,seeking the expertise of an oculoplastic surgeon under particular *** ophthalmologists still favor using ROPLAS as a preliminary screening method before proceeding with cataract *** conditions and thyroid eye disease are not as commonly addressed before subspecialty procedures compared to issues like nasolacrimal duct obstruction and periocular infections.

关键词： Oculoplasty Ophthalmic plastic surgery Nasolacrimal duct obstruction Practice patterns Survey

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基于生物信息学对骨关节炎铁超载关键基因的筛选与验证

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中国组织工程研究 2025年第9期29卷 1972-1980页

作者：邓柯淇李光第 GOSWAMI ashutosh 刘星余何孝勇贵州医科大学贵州省贵阳市550004 贵州医科大学附属医院骨外科贵州省贵阳市550004

背景:铁超载是指体内铁积累过多的情况,可引起各种组织的病理改变。目前,对于骨关节炎中铁超载相关的分子机制和潜在基因靶点,仍有待进一步的研究和探索。目的:通过生物信息学手段分析骨关节炎铁超载关键基因,并利用动物实验加以验证,... 详细信息

背景:铁超载是指体内铁积累过多的情况,可引起各种组织的病理改变。目前,对于骨关节炎中铁超载相关的分子机制和潜在基因靶点,仍有待进一步的研究和探索。目的:通过生物信息学手段分析骨关节炎铁超载关键基因,并利用动物实验加以验证,以期为铁超载角度防治骨关节炎提供新的思路。方法:使用GEO数据库和GeneCards数据库筛选出与骨关节炎相关的基因和铁超载相关的基因。然后,取两者的交集,得到骨关节炎和铁超载共同相关的基因集合。采用GO和KEGG富集分析筛选这些基因的功能和通路。为了进一步研究这些基因之间的相互作用,构建PPI网络,并利用Cytoscape软件的5种计算方法来识别骨关节炎铁超载的关键基因(Hub基因)。将12只雄性SD大鼠分为骨关节炎组与对照组(正常大鼠),每组6只,骨关节炎组大鼠采用改良Hulth方法建立膝骨关节炎模型,并使用PCR检测Hub基因在两组大鼠膝关节组织中的表达情况。结果与结论:①共获得51个骨关节炎铁超载基因,GO富集分析表明其主要参与细胞因子受体结合、趋化因子受体结合、细胞因子活性、生长因子受体结合及寡糖结合等过程;②KEGG富集分析表明骨关节炎铁超载基因主要参与肿瘤坏死因子信号通路、脂质和动脉粥样硬化等信号通路;③构建蛋白质-蛋白质相互作用网络,进一步分析获得细胞间黏附分子1(intercellular cell adhesion molecule-1,ICAM-1)、肿瘤坏死因子配体超家族成员11(tumor necrosis factor superfamily member 11,TNFSF11)、骨髓瘤细胞癌基因(myelocytomatosis oncogene,MYC)、Janus激酶2(janus kinase 2,JAK2)及白细胞介素6,5个骨关节炎铁超载Hub基因,动物实验证实其在对照组与骨关节炎组大鼠膝关节组织中的表达有显著差异(P<0.05);④结果显示,ICAM-1,TNFSF11,MYC,JAK2及白细胞介素6可作为骨关节炎铁超载的关键基因,有望成为防治骨关节炎的新靶点。

关键词：骨关节炎铁超载关键基因差异基因生物信息学动物实验实验验证生物标志物

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Ayurvedic concept of Shatkriyakala:a traditional knowledge of cancer pathogenesis and therapy

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Journal of Integrative Medicine 2017年第2期15卷 88-94页

作者： ashutosh Chauhan Deepak Kumar Semwal Satyendra Prasad mishra Ruchi Badoni Semwal Department of Biotechnology Faculty of Biomedical Sciences Uttarakhand Ayurved University Harrawala Dehradun 248001 India Department of Phytochemistry Faculty of Biomedical Sciences Uttarakhand Ayurved University Harrawala Dehradun 248001 India Uttarakhand Ayurved University Harrawala Dehradun 248001 India Department of Pharmaceutical Sciences Tshwane University of Technology Pretoria 0001 South Africa

The term Kriyakala refers to the recognition of the stage of a disease＇s progress, which helps to determine appropriate measure to correct the imbalance in Doshas （biological factors）. It is a compound expression, comprised of Kriya and Kala, where Kriya means the choice to treatment （medicine, food and daily-routine） used to improve the disturbance in Doshas, and Kala refers to the stage of progress of a disease. Sushruta, an ancient Indian surgeon, has described the concept of Kriyakala in Vamaprashnadhyaya, an ancient Vedic Sanskrit text, which seeks to explain the incidence of Vamas in terms of Doshic disturbances. Vama, in modern parlance, may be described as an inflammatory process that may lead ulceration and chronic inflammation, promoting all stages of carcinogenesis. Abnormal interactions between Prakriti （genotype） and environmental factors vitiate the Doshas and impair immunity, which can lead to aberrant cell growth and cancer. Moreover, the interaction between vitiated Doshas and weak Dhatus （body tissues） manifests as cancers of a specific organ. Shatkriyakala （six stages of progress of a disease）, on the other hand, provides a framework to assess the cancer and its pathogenesis in different stages. According to Ayurvedic concepts, all cancer therapies treat the affected tissues indirectly by eliminating vitiated Doshas, rejuvenating Dhatus and restoring immunity in cancer patients. The present review describes the six stages of Shatkriyakala in detail, with an emphasis on research areas to validate the concept of Shatkriyakala. This traditional knowledge can be utilized with modern technologies to detect predisposition for cancer or diagnose cancer in its early stages.

关键词： medicine, Ayurvedic Shatkriyakala tumors, malignant

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A simplified methd of evaluating the seismic performance of buildings

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Earthquake Engineering and Engineering Vibration 2004年第2期3卷 223-236页

作者： ashutosh Bagchi Department of Building Civil and Environmental EngineeringConcordia UniversityMontrealQuebecH3G 1M8Canada Assistant Professor

This paper presents a simplified method of evaluating the seismic performance of buildings. The proposed method is based on the transformation of a multiple degree of freedom (MDOF) system to an equivalent single degree of freedom (SDOF) system using a simple and intuitive process. The proposed method is intended for evaluating the seismic performance of the buildings at the intermediate stages in design, while a rigorous method would be applied to the final design. The performance of the method is evaluated using a series of buildings which are assumed to be located in Victoria in western Canada, and designed based on the upcoming version of the National Building Code of Canada which is due to be published in 2005. To resist lateral loads, some of these buildings contain reinforced concrete moment resisting frames, while others contain reinforced concrete shear walls. Each building model has been subjected to a set of site-specific seismic spectrum compatible ground motion records, and the response has been determined using the proposed method and the general method for MDOF systems. The results from the study indicate that the proposed method can serve as a useful tool for evaluation of seismic performance of buildings, and carrying out performance based design.

关键词： seismic hazard modal analysis static pushover analysis dynamic time history analysis performance-based design

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Performance of Corrosion-Resistant Alloys in Concentrated Acids

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Acta Metallurgica Sinica(English Letters) 2017年第4期30卷 306-318页

作者： Ajit mishra Research and Technology Haynes International 1020 ParkAve Kokomo IN 46902 USA

Nickel alloys containing optimum amounts of chromium （Cr）, molybdenum （Mo） and tungsten （W） are widely used in the chemical processing industries due to their tolerance to both oxidizing and reducing conditions. Unlike stainless steel （SS）, Ni-Cr-Mo （W） alloys exhibit remarkably high uniform corrosion resistance in major concentrated acids, like hydrochloric acid （HC1） and sulfuric acid （H2SO4）. A higher uniform corrosion resistance of Ni-Cr-Mo （W） alloys, compared to other alloys, in concentrated acids can be attributed to the formation of protective oxide film of Mo and W in reducing acids, and Cr oxide film in oxidizing solutions. The localized corrosion resistance of Ni-Cr-Mo （W） alloys, containing high amount Cr as well as Mo （or Mo ＋ W）, is also significantly higher than that of other commercially available alloys. The present study investigates the role of alloying elements, in nickel alloys, to uniform corrosion resistance in concentrated acids （HC1, HC1 ＋ oxidizing impurities and H2SO4） and localized corrosion performance in chloride-rich environments using ASTM G-48 test methodology. The corrosion tests were conducted on various alloys, and the results were analyzed using weight loss technique and electrochemical techniques, in conjunction with surface char- acterization tools.

关键词： Nickel-chromium-molybdenum-tungsten Corrosion-resistant alloys Reducing acid Oxidants Localized corrosion Surface characterization

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Electron Paramagnetic Resonance and Optical Absorption of VO2+Doped Ammonium Selenate Single Crystals

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Chinese Physics Letters 2011年第3期28卷 203-206页

作者： Ram Kripal ashutosh Kumar Shukla Department of Physics University of AllahabadAllahabad 211002India Department of Physics Ewing Christian CollegeAllahabad 211003India

An electron paramagnetic resonance study of vanadyl ions doped in ammonium selenate single crystals is carried out at room *** is found that the VO^(2+)ion takes up an interstitial *** spin Hamiltonian parameters obtained from the crystal rotations are g‖=1.9576±0.0002,g⊥=1.9889±0.0002,A‖=203±2 G,A⊥=78±2 *** optical absorption study is also carried out to evaluate various bonding *** the basis of these parameters the nature of bonding in the complex is discussed.

关键词： temperature parameters bonding

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Corrosion Study of Base Material and Welds of a Ni-Cr-Mo-W Alloy

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Acta Metallurgica Sinica(English Letters) 2017年第4期30卷 326-332页

作者： Ajit mishra Haynes International Inc. 1020 West Park AvenueKokomo IN 46904 USA

Alloys containing chromium （Cr） and molybdenum （Mo）, as the major alloying elements, are widely used in various industries where the material experiences corrosive environments. Chromium （Cr）, when added in an optimum amount, forms a Cr203 passive film which protects the underlying metal in aggressive solutions. Molybdenum （Mo） forms its oxides in the low pH solutions, thus, enhances the uniform corrosion resistance of an alloy in reducing acids and assists in inhibition to localized corrosion. Minor alloying elements, like tungsten （W） and copper （Cu）, also improve the overall corrosion resistance of an alloy in specific solutions. In the present study, corrosion resistance behavior of commercial iron- based alloys （316L SS, 254 SMO and 20Cb3） and nickel-based alloys （Mone1400, Alloy 625 and C-276） was studied in the acidic solutions. While the corrosion behavior of wrought alloys has been widely studied, there is little to no information on the corrosion performance of their welds, typically being the weak regions for corrosion initiation and propagation. Therefore, an attempt was undertaken to investigate the uniform and localized corrosion performance of base metal, simulated heat-affected zone and all-weld-metal samples of a Ni-Cr-Mo-W alloy, C-276. The study was conducted in aggressive acidic solutions. Various corrosion and surface analytical techniques were utilized to analyze the results.

关键词： Iron-chromium-molybdenum Nickel-chromium-molybdenum-tungsten All-weld-metal Heat-affected-zone Acids Acidified ferric chloride Potentiodynamic Scanning electronmicroscopy (SEM)

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