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Turn-on fluorescence probe for selective detection of hg(Ⅱ)by calixpyrrole hydrazide reduced silver nanoparticle: Application to real water sample

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Chinese Chemical Letters 2016年第5期27卷 731-737页

作者： Keyur D. bhatt Disha J. Vyas Bharat A. Makwana Savan M. Darjee Vinod K. Jain hemangini Shah Department of Chemistry C.U. Shah University Wadhwan 363030 India Department of Chemistry School of Sciences Gujarat University Ahmedabad 380009 India

A simple and quick method for the synthesis of water dispersible stable silver nanoparticles has been developed. Calix[4]pyrrole octahydrazide （CPOh）, has been successfully used as a reducing as well as stabilizing agent for the synthesis of silver nanoparticles. CPOh-AgNps have been duly characterized by SPR, PSA, TEM and EDX-ray. The ability of CPOh-AgNps as selective and sensitive sensor for various ions （Pb（Ⅱ）, Cd（II）, Mn（Ⅱ）, Fe（Ⅲ）, Ni（Ⅱ）, Zn（Ⅱ）, hg（Ⅱ）, Co（Ⅱ）, Cu（Ⅱ）） by colorimetry and spectrofluorimetry has been explored. CPOh-AgNps were found to be selective only for hg（Ⅱ） ions. Nanomolar concentration of hg（Ⅱ） ions can also be determined by spectrofluorimetry by increase in fluorescence intensity. Linear range of detection of hg（Ⅱ） ions in water was found to be from 1nmol/L to mol/L. The method has been successfully applied for determination of hg（Ⅱ） ions in ground water and industrial effluent waste water samples.

关键词： Calixpyrrole Silver nanoparticles Fluorescence study Colorimetric sensor Water sampleshg(Ⅱ) ions

晚期上皮性卵巢癌腹膜播散模式及腹膜切除范围

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中国肿瘤临床 2022年第24期49卷 1291-1294页

作者： Aditi bhatt Snita Sinukumar Praveen Kammar Loma Parikh Gaurav Goswami Shweta Thakkar Sakina Shaikh Sanket Mehta 张新静(翻译) 李雁(审校) 印度艾哈迈达巴德Zydus医院肿瘤外科印度普那Jehangir医院肿瘤外科印度孟买医院肿瘤外科印度艾哈迈达巴德Zydus医院病理科印度艾哈迈达巴德Zydus医院放射科不详

根据晚期上皮性卵巢癌(epithelial ovarian cancer,EOC)患者腹膜播散模式和腹膜切除范围的最新研究进展,分析评估肿瘤细胞减灭术(cytoreductive surgery,CRS)中行全壁腹膜切除术(total parietal peritonectomy,TPP)和内脏腹膜广泛切除... 详细信息

根据晚期上皮性卵巢癌(epithelial ovarian cancer,EOC)患者腹膜播散模式和腹膜切除范围的最新研究进展,分析评估肿瘤细胞减灭术(cytoreductive surgery,CRS)中行全壁腹膜切除术(total parietal peritonectomy,TPP)和内脏腹膜广泛切除术的前瞻性研究初步结果。在手术期间看似“正常”的腹膜中,隐匿性疾病的发生率较高,这可能是疾病复发的来源。腹腔热灌注化疗(hyperthermic intraperitoneal chemotherapy,hIPEC)主要作用于微小病灶和手术过程中脱落到腹腔内的游离癌细胞,从而降低复发风险;与单纯CRS相比,hIPEC联合CRS在无进展生存率和总生存率上均显示出优势。彻底根除这种隐匿性疾病的唯一方法为腹膜切除,TPP与内脏腹膜广泛切除术可能是治疗这种隐匿性疾病最有效的策略。TPP的术后并发症可接受,TPP可延长无进展生存率和总生存率,且TPP后铂类耐药复发的发生率远低于既往结果。

关键词：上皮性卵巢癌腹膜播散模式腹膜切除范围肿瘤细胞减灭术全壁腹膜切除

Current Vegetation Pattern along Glacial Landscape in Central (Garhwal) himalaya, India

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Journal of Mountain Science 2005年第3期2卷 255-264页

作者： Uday N. Gaur G.P. Raturi A.B. bhatt Department of Botany HNB Garhwal University Srinagar Garhwal- 246 174 (Uttaranchal) India Department of Botany HNB Garhwal University Srinagar Garhwal- 246 174 (Uttaranchal) IndiaDepartment of Botany HNB Garhwal University Srinagar Garhwal- 246 174 (Uttaranchal) India

Current vegetation patterns, biodiversity and adaptation of plants were studied during 1998～2001 in glacial landscape of Chaurabari situated above Kedarnath (30° 44′ N～ 79° 07′ E;3,000～ 6,000 m) in Central himalaya. Landscape was identified into different zones on account of the vegetation status, glacial features, geomorphology and altitudes. Cold environment with heavy snowfall, frost hailstorm and dense frost characterizes the study *** of the soda rich feldspars indicates soda enrichment; orthoclase, microcline weathering and alternation would have contributed potash to the soil. The increasing severity of the environment as we ascend from timberline to snowline leads to progressive decline in the abundance and diversity of the plant species. The diversity of the higher plants decrease, while the diversity of microflora increase from alpine zone to snowline zone. highly opulent and diverse flora with beautiful, delicate herbs occupy the alpine zone, but some specialized groups of the plants, particularly high energetic and cold resistant species reside in glacial environment. Asteraceae,Rananculaceae, Primulaceae, Rosaceae, Apiaceae and Ericaceae are the pioneer angiospermic families,while Anaphalis triplinervis, A. royleana,Androsacce sarmentosa, Cotoneaster rotundifolius,Lonicera myrtillus, Cassiope fastigiata, Gaultheria trichophglla and Erigeron multiradiatus are the pioneer species, which have invaded in glacial environment. Through its nature, alpine glacial ecotone can be seen easily due to environmental and edaphic differences.

关键词：冰河地形条件印度生态系统植物多样性

Characterization of Negative Exponential Distribution through Expectation

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Open Journal of Statistics 2013年第5期3卷 367-369页

作者： Milind bhatt B. Department of Statistics Sardar Patel University Vallabh Vidyanagar India

For characterization of negative exponential distribution one needs any arbitrary non-constant function only in place of approaches such as identical distributions, absolute continuity, constant regression of order statistics, continuity and linear regression of order statistics, non-degeneracy etc. available in the literature. Path breaking different approach for characterization of negative exponential distribution through expectation of non-constant function of random variable is obtained. An example is given for illustrative purpose.

关键词： Characterization Negative Exponential Distribution

Cardiac Radiosurgery for the Treatment of Atrial Fibrillation

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World Journal of Cardiovascular Diseases 2016年第5期6卷 143-155页

作者： Nikhilesh bhatt Thomas Fogarty Patrick Maguire Fogarty Institute for Innovation Mountain View CA USA

An estimated 4 million Americans currently have atrial fibrillation (AF), the most common form of cardiac arrhythmia. The annual growth rate of AF is approximately 9.2% and advanced statistical analyses project that the prevalence of AF will be 12.1 million in the United States by 2030. The current therapeutic options to treat AF put certain patient groups at a high risk for a serious bleeding event, stroke or thromboembolism, myocardial infarction, and death. The most effective treatment for AF—catheter ablation—has been widely reported to require repeat operations and only leaves 59.4% of patients AF-free after five years. A majority of the reported complications and increased risks for catheter ablation occur because the procedure is invasive. Thus, there is a need for a novel, non-invasive therapeutic option to treat AF that can potentially expand the treatable patient population, increase patient safety, and improve clinical outcomes. Cyberheart Inc. has been exploring the efficacy and potential of cardiac radiosurgery as an option to treat heart conditions such as AF. With its proprietary CardioPlanTM software, the Cyberheart System utilizes the Cyberknife stereotactic radiosurgery platform to non-invasively ablate the heart. Early studies have displayed that the Cyberheart System is highly accurate at delivering radiation to cardiac targets and effective at minimizing radiation exposure to healthy tissue that is in close proximity to the targeted anatomic region. The focus of this review is to present the current standard of treatment for AF, identify the specific patient population that is at a high risk for the current treatment modalities, and address the potential for the Cyberheart Stereotactic Radiosurgery System to noninvasively ablate cardiac tissue and return sinus rhythm to patients with AF.

关键词： Cyberheart Cardiac Radiosurgery Atrial Fibrillation Non-Invasive Radiotherapy

high-temperature solution growth of large size chalcogenide FeTxSe(T:Fe,Co)superconducting single crystals

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Superconductivity 2022年第3期3卷 39-45页

作者： Veg Singh bhatt Anil K.Yadav Dinesh Dixit C.V.Tomy Department of Physics Ch.Charan Singh University MeerutUP 250004India Department of Physics Indian Institute of Technology BombayMumbai 400076India Central Facility Indian Institute of Technology DelhiSonipatIndia

We report the growth of high quality Fe excess and Co doped,FeTxSe single crystals in nominal ratio via slow cooling method of high temperature solution growth technique and,their structural and physical properties through the X‐ray diffraction,Raman spectroscopy,magnetic and transports *** area electron diffraction(SAED)patterns and X‐ray diffraction of cleavage piece confirm the growth of single crystals in(h0l)*** of phonon vibration modes(A_(1g) and B_(1g))in Raman spectroscopy measurements mark the qualitative analysis of these single *** temperature magnetic and electrical transport studies manifest the superconducting nature of both single crystals.

关键词： Chalcogenide superconductor Single crystals Slow cooling method Raman measurements

Patterns of antidepressant therapy and clinical outcomes among ischaemic stroke survivors

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Stroke & Vascular Neurology 2021年第3期6卷 384-394,I0018-I0032页

作者： Mark R Etherton Shreyansh Shah Xu haolin Ying Xian Lesley Maisch Deidre hannah Brianna Lindholm Barbara Lytle Laine Thomas Eric E Smith Gregg C Fonarow Lee h Schwamm Deepak L bhatt Adrian F hernandez Emily C O'Brien Neurology Massachusetts General HospitalBostonMassachusettsUSA Neurology Duke University School of MedicineDurhamNorth CarolinaUSA Duke Clinical Research Institute Duke UniversityDurhamNorth CarolinaUSA American heart Association Inc DallasTexasUSA Clinical Neurosciences University of Calgary Cumming School of MedicineCalgaryAlbertaCanada Cardiology Ronald Reagan UCLA Medical CenterLos AngelesCaliforniaUSA Cardiovascular Medicine Brigham and Women's HospitalBostonMassachusettsUSA Cardiology Duke UniversityDurhamNorth CarolinaUSA Population health Duke Clinical Research InstituteDurhamNorth CarolinaUSA

Background and purpose Depression is common after stroke and is often treated with antidepressant medications(AD).ADs have also been hypothesised to improve stroke recovery,although recent randomised trials were *** investigated the patterns of in-hospital AD initiation after ischaemic stroke and association with clinical and readmission *** All Medicare fee-for-service beneficiaries aged 65 or older hospitalised for ischaemic stroke in participating Get With The Guidelines-Stroke hospitals between April and December 2014 were eligible for this *** measures included days alive and not in a healthcare institution(home time),all-cause mortality and readmission within 1-year *** score(PS)-adjusted logistic regression models were used to evaluate the associations between AD use and each outcome *** also compared outcomes in patients prescribed selective serotonin reuptake inhibitors(SSRIs)AD versus those prescribed non-SSRI *** Of 21805 AD naive patients included in this analysis,1835(8.4%)were started on an AD at *** started on an AD had higher rates of depression and prior ischaemic stroke,presented with higher admission National Institutes of health Stroke Scale score and were less likely to be discharged ***,patients started on an SSRI had lower rates of discharge to *** for stroke severity,patients started on an AD had worse all-cause mortality,all-cause readmission,major adverse cardiac events,readmission for depression and decreased ***,AD use was also associated with an increased risk for the sepsis,a falsification endpoint,suggesting the presence of residual *** Patients with ischaemic stroke initiated on AD therapy are at increased risk of poor clinical outcomes and readmission even after PS adjustment,suggesting that poststroke depression requiring medication is a poor prognostic *** research is needed to explore

关键词： prescribed admission founding

Variation of Trapping Strength with Size and Number of Particles in a Single Trap

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Optics and Photonics Journal 2013年第2期3卷 178-183页

作者： Jitendra bhatt Sachin bhatt Shaival Buch Ravindra Pratap Singh Saiyed Nisar Ali Jaaffrey Birla Institute of Technology & Science Pilani - K K Birla Goa Campus Goa India Department of Physics University College of Science Mohan Lal Sukhadia University Udaipur India Indian Institute of Technology Guwahati India Theoretical Physics Division Physical Research Laboratory Ahmedabad India

Optical tweezers use the radiation pressure to trap and manipulate the microscopic particles. Using various algorithms multiple traps are being formed which can trap a number of particles simultaneously. In contrast to multiple traps, many particles can be trapped at a single trap position. It is known that when two or more particles are trapped in a single trap they align themselves in axial direction and it appears as if only one particle is trapped. We present a study of the dependence of the optical trapping force on the number of particles in a single trap using equipartition method;the study was carried out for particles of different sizes. The trapping force was first found to increase then decrease with number of particles in trap for all particle sizes. We feel that our studies will be useful in applications of optical tweezers involving trapping of multiple particles in a single trap.

关键词： Optical Tweezers Multiple Particles Trapping Strength

Visual and refractive outcomes following implantation of a new trifocal intraocular lens

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Eye and Vision 2017年第1期4卷 42-47页

作者： Michael Lawless Chris hodge Joe Reich Lewis Levitz Uday K.bhatt Colm McAlinden Kate Roberts Timothy V.Roberts Vision Eye Institute Level 3270 Victoria Avenue ChatswoodSydneyNSW 2067Australia Sydney Medical School University of SydneySydneyNSWAustralia University of Technology SydneyNSWAustralia Vision Eye Institute MelbourneVICAustralia University hospitals Bristol BristolUK

Background:Independence from all optical aids,and freedom from unwanted symptoms,following cataract and lens surgery remains the ultimate goal of both patient and *** development of trifocal IOL technology provides an ever-increasing range of *** purpose of our study is to understand the predictability,safety and efficacy of a new trifocal intraocular lens(IOL)following cataract or refractive lens exchange(RLE)***:This was a retrospective consecutive case series of patients undergoing cataract extraction or RLE followed by implantation of the Alcon IQ Panoptix *** and postoperative refractive and visual parameters were recorded and *** the cohort followed a normal distribution,standard parametric tests were *** t-test was used to compare the difference between target and postoperative refractive *** incidence of intraoperative and postoperative complications was also ***:The IOL was implanted in 66 eyes of 33 *** postoperative spherical equivalent(SE)refraction was-0.08±0.25 dioptres(D).This was not significantly different from the target refraction(p=0.841).Sixty-five percent of patients were within±0.25 D of the target SE refraction with 100%within±0.50 D of intended *** postoperative uncorrected distance visual acuity(UDVA)was 0.01±0.10 *** patients achieved an unaided distance acuity of 20/40 or better ***,100%saw 0.20 LogMAR or better at near without correction and 88.9%achieved this level for uncorrected intermediate visual *** intraoperative complications were *** patients complained of moderate haloes in the early postoperative ***:The AcrySof IQ Panoptix IOL provides functional uncorrected visual acuity at distance,intermediate and near *** results remain equivalent with existing trifocal IOL outcomes and provide surgeons with a further IOL alternative for the patient motivated to obtain true spectacl

关键词： Trifocal Trifocal IOL Cataract Refractive lens exchange