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Citation classics in pediatrics: a bibliometric analysis

World Journal of Pediatrics 2018年第6期14卷 607-614页

作者： Viswas Chhapola Soumya Tiwari Bobbity Deepthi sandeep kumar Kanwal Department of Pediatrics Kalawati Saran Children's Hospital&Lady Hardinge Medical CollegeBangla Sahib RoadNew Delhi 110001India

Background Citation analysis provides insights into the history and developmental trajectory of scientific fields. Our objec-tive was to perform an analysis of citation classics in the journals of pediatric specialty and to examine their characteristics. Methods Initially, all the journals listed under the category of pediatrics (n = 120) were identified using Journal Citation Reports. Web of science database was then searched (1950–2016) to select the top-100 cited articles in the above identified pediatric journals. The top-100 cited article were categorized according the study design, sub-specialty, country, institutional affiliation, and language. Results The top-100 articles were published in 18 different journals, with Pediatrics having the highest numbers (n = 40), followed by The Journal of Pediatrics (n = 17). The majority (n = 62) of classics were published after 1990. The most cited article had citation count of 3516 and the least cited had a citation count of 593. The USA (n = 71) was the most commonly represented country, and 60 institutions contributed to 100 articles. Fifteen authors contributed to more than one classic as first or second author. Observational study (n = 55) was the commonest study design across all decades, followed by reviews (n = 12), scale development studies (n = 11), and guidelines (n = 11). Among the pediatric sub-specialties, growth and development articles were highly cited (n = 24), followed by pediatric psychiatry and behavior (n = 21), endocrinology (n = 15), and neonatology (n = 12). Conclusions The top-100 cited articles in pediatrics identify the impactful authors, journals, institutes, and countries. Obser-vational study design was predominant—implying that inclusion among citation classics is not related to soundness of study design.

关键词： Bibliometrics Citation analysis Citation count Publishing/trends Scientometrics

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Efficient Clustering and Simulated Annealing Approach for Circuit Partitioning

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Journal of Shanghai Jiaotong university(Science) 2011年第6期16卷 708-712页

作者： sandeep Singh Gill RAJEEVAN Chandel ASHWANI kumar Chandel Department of Electronics and Communication Engineering Guru Nanak Dev Engineering College National Institute of Technology

Circuit net list bipartitioning using simulated annealing technique has been proposed in the *** method converges asymptotically and probabilistically to global *** circuit net list is partitioned into two partitions such that the number of interconnections between the partitions is *** proposed method begins with an innovative clustering technique to obtain a good initial *** obtained show the versatility of the proposed method in solving non polynomial hard problems of circuit net list partitioning and show an improvement over those available in literature.

关键词： cut size non polynomial hard partitioning simulated annealing interconnections very large scale integration(VLSI) design

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Performance Analysis of Multilayer Coil Based MI Waveguide Communication System

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Computers, Materials & Continua 2022年第9期72卷 5287-5300页

作者： sandeep N.Dandu Vinay kumar Joydeep Sengupta Neeraj D.Bokde Department of Electronics and Communications Engineering Visvesvaraya National Institute of TechnologyNagpur440010India Department of Electronics and Communications Engineering Motilal Nehru National Institute of TechnologyPrayagraj211002India Department of Civil and Architectural Engineering-Design and Construction 8000AarhusDenmark

In the non-conventional media like underwater and underground,the Radio Frequency(RF)communication technique does not perform well due to large antenna size requirement and high path *** such media,magnetic induction(MI)communication technique is very promising due to small coil size and constant channel *** the RF technique,the communication range in MI technique is relatively *** enhance this range,a waveguide technique is already brought in *** technique employs single layer coils to enhance the performance of MI *** further enhance the system functioning,in this paper,we investigated the performance of multi-layer coil(MLC)antenna based MI waveguide communication system in terms of transmission range,path loss,bit error rate(BER)and ***,the system performance is quantitatively evaluated in three different non-conventional media viz.,dry soil,fresh water and wet *** compared with the single layer counterpart,the MLC system shows a significant improvement in transmission range,BER even in loosely coupled scenarios and shows a corresponding reduction in path ***,the bandwidth is observed to be low(<1 KHz).In this analysis,the eddy current effects and parasitic capacitance are compared for single and multilayer *** is observed that the proposed system performs better in dry soil medium due to less medium conductivity.

关键词： Communication magnetic induction multilayer coil waveguide system

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Characterization and validation of a chronic retinal neovascularization rabbit model by evaluating the efficacy of anti-angiogenic and anti-inflammatory drugs

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International Journal of Ophthalmology(English edition) 2022年第1期15卷 15-22页

作者： sandeep kumar John Quach Nicholas Cook Glenwood Gum Vatsala Naageshwaran Department of Ophthalmology Absorption Systems:a Pharmaron company7901 Vickers StSan DiegoCA 92111USA

AIM:To establish a rabbit model with chronic condition of retinal neovascularization(RNV)induced by intravitreal(IVT)injection of DL-2-aminoadipic acid(DL-AAA),a retinal glial(Mül er)cell toxin,extensive characterization of DL-AAA induced angiographic features and the suitability of the model to evaluate anti-angiogenic and anti-inflammatory therapies for ocular vascular ***:DL-AAA(80 mmol/L)was administered IVT into both eyes of Dutch Belted *** DL-AAA delivery,clinical ophthalmic examinations were performed weekly following modified Mc Donald-Shadduck Scoring *** fundus photography,fluorescein angiography(FA),and optical coherence tomography(OCT)procedures were performed every 2 or 4 wk until stable retinal vascular leakage was *** stable retinal leakage(12 wk post DL-AAA administration)was established,anti-vascular endothelial growth factor(VEGF)(bevacizumab,ranibizumab and aflibercept)and anti-inflammatory(triamcinolone,TAA)drugs were tested for their efficacy after IVT *** angiograms were scored before and after treatment following a novel grading system,developed for the DL-AAA rabbit ***:Post DL-AAA administration,eyes were presented with moderate to severe retinal/choroidal inflammation which was accompanied by intense vitreous flare and presence of inflammatory cells in the vitreous *** hemorrhage was restricted to the tips of neo-retinal *** revealed maximum retinal vascular leakage at 2 wk after DL-AAA injection and then persisted as evidenced by stable mean FA scores in weeks 8 and *** vascular angiographic and tomographic features were stable and consistent up to 36 mo among two different staggers induced for RNV at two different *** 7,mean FA scores showed that 1μg/eye of bevacizumab,ranibizumab,aflibercept and 2μg/eye of TAA suppress 65%,90%,100%and 50%retinal vascular leakage,*** 30,bevacizumab and TAA continued to show 66%and 44%su

关键词： DL-2-aminoadipic acid chronic wet agerelated macular degeneration retinal neovascularization animal model anti-vascular endothelial growth factor drugs fluorescein angiography

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Robotic-assisted esophagectomy: A literature review and our experience at a tertiary care centre

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Laparoscopic, Endoscopic and Robotic Surgery 2020年第3期3卷 74-79页

作者： sandeep kumar Jha Neeraj Dhamija Arvind kumar Saumitra Rawat Department of HPB Surgery and Liver Transplant BLK Super Speciality HospitalDelhiIndia Department of Surgical Gastroenterology and Liver Transplantation Sir Ganga Ram HospitalDelhiIndia Department of Thoracic Surgery Sir Ganga Ram HospitalDelhiIndia

Esophageal cancer is a common cancer with a high case-related mortality worldwide,and radical resection offers the best *** reports have suggested that esophagus is an ideal organ which could benefit with robotic ***,it remains to be seen whether robotic technology translates into better surgical outcomes and survival for the patients with esophageal *** searched PubMed,Scopus and Google Scholar for English language *** search terms included minimally invasive esophagectomy or MIE,robotic-assisted esophagectomy,hybrid esophagectomy,robot-assisted minimal invasive esophagectomy or RAMIE,esophageal cancer,esophageal *** review the development of robotic-assisted esophagectomy to focus on the surgical techniques and oncological clearance,and present a brief summary of our experience in this *** trials will be required to establish the benefit of robotic-assisted esophagectomy,however the current literature points towards the safety and feasibility of this approach.

关键词： Robotic-assisted esophagectomy Minimal invasive esophagectomy Esophageal cancer

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Inhibition of proliferation of retinal vascular endothelial cells more effectively than choroidal vascular endothelial cell proliferation by bevacizumab

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International Journal of Ophthalmology(English edition) 2017年第1期10卷 15-22页

作者： Bharani Krishna Mynampati kumar Sambhav sandeep Grover Kakarla V.Chalam Department of Ophthalmology University of FloridaCollegeof MedicineJacksonvilleFL 32209USA

AIM： To evaluate the differential inhibitory effects of bevacizumab on cell proliferation of vascular endothelial growth factor （VEGF）-stimulated choroidal vascular endothelial cells （CVECs） and retinal vascular endothelial cells （RVECs） in ***： VEGF （400 ng/mL） enriched CVECs and RVECs were treated with escalating doses of bevacizumab （0.1, 0.5, 1, 1.5 and 2 mg/mL）. Cell proliferation changes were analyzed with WST-1 assay and trypan blue exclusion assay at 48, 72h and 1wk. Morphological changes were recorded with bright field ***： VEGF enriched RVECs showed significantly more decline of cell viability than CVECs after bevacizumab treatment. One week after treatment, RVEC cell proliferation decreased by 29.7%, 37.5%, 52.8%, 35.9% and 45.6% at 0.1, 0.5, 1.0, 1.5 and 2 mg/mL bevacizumab respectively compared to CVEC proliferation decrease of 4.1%, 7.7%, 2.4%, 4.1% and 17.7% （P〈0.05） by WST-1 assay. Trypan blue exclusion assay also revealed similar decrease in RVEC proliferation of 20%, 60%, 73.3%, 80% and 93.3% compared to CVEC proliferation decrease of 4%, 12%, 22.9%, 16.7% and 22.2% respectively （P〈0.05）. The maximum differential effect between the two cell types was observed at bevacizumab doses of 1.0 and 1.5 mg/mL at all time points. RVECs were 22 fold more sensitive （P〈0.01） compared to CVECs （52.8% vs 2.4%） at concentration of 1.0 mg/mL, and 8.7 fold more at 1.5 mg/mL （35.9% vs 4.1%） 1wk after treatment （P〈0.05 respectively）.CONCLUSION： VEGF-enriched RVECs are more susceptible to bevacizumab inhibition than CVECs at clinically used dosage of 1.25 mg and this differential sensitivity between two cell types should be taken into consideration in dosage selection.

关键词： bevacizumab retinal vascular endothelialcells choroidal vascular endothelial cells

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Effect of plumbagin free alcohol extract of Plumbago zeylanica Linn,root on reproductive system of female Wistar rats

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Asian Pacific Journal of Tropical Medicine 2011年第12期4卷 978-984页

作者： Gupta sandeep Ahirwar Dheeraj Sharma Neeraj kumar Jhade Deenanath Ahirwar Bharti School of Pharmacy Chouksey Engineering CollegeBilaspur(C.G.)India 495001 SLT Institute of Pharmaceutical Sciences Guru Ghasidas University.Bilaspur(C.G.)India 495001

Objective:To assess the effect of plumbagin-free alcohol extract（PFAE） of Plumbago zeylanica Linn.（Plumbaginaceae）（***） root,on female reproductive system and ferlility of adult Female wislar ***:After the oral acute toxicity study,the PFAE was administered at two dose levels to perform the estrous cycle study,anti-implantation and ahortifacient activity and hormonal ***,the estrogenic/antiestrogenic activity was evaluated at only one most effective ***:LD50 cut-off was 5 000 mg/kg body *** extract exhibited significant anti-implantation and ahortifacient activity at the tested dose levels（300 and 500 mg/ kg.p.o.）（P<0.01）.The extract dose-dependency decreased the levels of serum progesterone, follicle stimulating hormone and luteinizing hormone,while a dose-dependent increase was observed in the concentration of serum *** extract did not show any significant changes in structure and function of Uterus when given alone,hut when given along with ethinyl estradiol,it exhibited significant antiestrogenic activity in immature overieclonzed female rats（P<0.001） Biochemical parameters in the serun/blood and haematological parameters did not show appreciable changes throughout and after the course of ***,all the altered parameters returned to normalcy within 30 days following withdrawal of treatment. Conclusions:All findings suggest that the anlifcrtility activity of extract could possibly he through the changes in the implantation site,altered hormonal levels,prolonged estrous cycle and anti-estrogenic ***,the extract possesses reversible antifcrtility activity without adverse toxicity in female rats.

关键词： Anti-implantation Abortilacient Estrogenic/antiestrogenic activity Progesterone Follicle stimulating hormone Luteinizing hormone Prolactin Ethinyl estradiol Overiectomized Haematological

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Predictors of Mortality at 28-days in Infection associated Acute Kidney Injury in Cirrhosis

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World Journal of Hepatology 2022年第3期14卷 592-601页

作者： Tarana Gupta Naveen Ranga sandeep kumar Goyal Department of Medicine Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical SciencesRohtak 124001HaryanaIndia Independent Researcher Kangra 176056Himachal PradeshIndia

BACKGROUND Acute kidney injury(AKI)in cirrhosis is important complication with poor *** infections are common cause for acute *** in cirrhosis lead to acute deterioration of hemodynamics leading to precipitation of *** To study predictors of mortality in patients with infection-associated AKI in *** This was a prospective,observational study conducted at Tertiary care centre from January 2018 till April *** 119 participants with cirrhosis of liver presenting with AKI were included into the *** was defined as per international club of Ascites-AKI criteria *** were grouped into infection AKI and non-infection ***-infection AKI included patients with diuretic induced AKI and pre-renal *** regression analysis was used to determine predictors of mortality at *** Out of 119 patients,alcohol(n=104)was most common etiology of *** infection AKI included 67(56%)patients and non-infection AKI(n=52)included pre-renal AKI in 36(30%)and diuretic-induced AKI in 16(14%)*** AKI had significantly higher bilirubin,higher international normalized ratio(INR),low serum sodium,higher total leukocyte count(TLC)and higher prevalence of hepatic encephalopathy(HE)as compared to non-infection *** AKI had higher progression of AKI(19/67 vs 2/52;P=0.01)and 28-d mortality(38/67 vs 4/5;P≤0.01)as compared to non-infection *** 28-d,non-survivors(n=42)had significantly higher bilirubin,higher INR,low serum sodium,higher TLC and higher prevalence of HE as compared to survivors(n=77).On subgroup analysis of Infection AKI group,on multivariate analysis,serum bilirubin as well as presence of HE were independent predictors of 28-d *** was no significant difference of mortality at 90-d between two *** Infection AKI in cirrhosis has a dismal prognosis with higher 28-d mortality as compared to noninfection *** bilirubin and presence of HE predict

关键词： Infection Acute kidney injury Mortality Cirrhosis Bilirubin Hepatic encephalopathy

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Euglycemic diabetic ketoacidosis:A missed diagnosis

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World Journal of Diabetes 2021年第5期12卷 514-523页

作者： Prashant Nasa sandeep Chaudhary Pavan kumar Shrivastava Aanchal Singh Department of Critical Care Medicine NMC Specialty HospitalDubai 7832United Arab Emirates Department of Endocrinology NMC Specialty HospitalDubai 7832United Arab Emirates Department of Internal Medicine NMC Specialty HospitalDubai 7832United Arab Emirates

Euglycemic diabetic ketoacidosis(DKA)is an acute life-threatening metabolic emergency characterized by ketoacidosis and relatively lower blood glucose(less than 11 mmol/L).The absence of hyperglycemia is a conundrum for physicians in the emergency department and intensive care units;it may delay diagnosis and treatment causing worse *** DKA is an uncommon diagnosis but can occur in patients with type 1 or type 2 diabetes *** the addition of sodium/glucose cotransporter-2 inhibitors in diabetes mellitus management,euglycemic DKA incidence has *** other causes of euglycemic DKA include pregnancy,fasting,bariatric surgery,gastroparesis,insulin pump failure,cocaine intoxication,chronic liver disease and glycogen storage *** pathophysiology of euglycemic DKA involves a relative or absolute carbohydrate deficit,milder degree of insulin deficiency or resistance and increased glucagon/insulin *** DKA is a diagnosis of exclusion and should be considered in the differential diagnosis of a sick patient with a history of diabetes mellitus despite lower blood glucose or absent urine *** diagnostic workup includes arterial blood gas for metabolic acidosis,serum ketones and exclusion of other causes of high anion gap metabolic *** DKA treatment is on the same principles as for DKA with correction of dehydration,electrolytes deficit and insulin *** dextrosecontaining fluids should accompany intravenous insulin to correct metabolic acidosis,ketonemia and to avoid hypoglycemia.

关键词： Diabetic Ketoacidosis Sodium/glucose co-transporter-2 inhibitors Pregnancy with diabetic ketoacidosis Diabetes complications Pregnancy in diabetes Ketosis Metabolic acidosis

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Analysis of TiO2 for microelectronic applications:effect of deposition methods on their electrical properties

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Frontiers of Optoelectronics 2011年第4期4卷 349-358页

作者： Davinder RATHEE sandeep K ARYA Mukesh kumar Department of Electronics and Communication Engineering Guru Jambheshwar University of Science & Technology Department of Electronics Science Kurukshetra University

Metal oxide semiconductor（MOS） device down-scaling is a powerful driving force for the evolution of microelectronics. The downsizing rate of metal oxide semiconductor field effect transistors（MOSFETs） is really marvelous. Silicon dioxide（SiO2） has served as a perfect gate dielectric for the last four decades. Due to physical limitations, leakage current, high interface trap charge it now needs to be replaced with higher permittivity dielectric material. Keeping the motivation for the search of high-k materials, extensive studies have been carried out on several metal oxides, such as ZrO2, Ta2O5, TiO2, Al2O3and HfO2for the replacement of SiO2. The high dielectric constant（k） of titanium dioxide（TiO2） will open multifaceted prospects for the use of this material in microelectronic devices. In this paper, a comparative study of various deposition methods for fabrication of thin TiO2films has been presented. This work uses a combination of simulation results, experimental data and critical analysis of published data. Further, an experiment using sol-gel method has been carried out to deposit thin films of TiO2. It has been characterized and compared with the earlier reported fabrication methods. The X-ray diffraction analyses and Raman spectra indicate the presence of anatase TiO2phase in the film. The dielectric constant as calculated using capacitance-voltage（C-V） analysis was found to be 23. The refractive index of the film was *** TiO2films studied for microelectronic applications and present acceptable properties such as low leakage current density of 1.0×10–5A/cm at 1 V and band gap of 3.6 eV. The leakage current has been found to be dominant by the Schottky emission at lower electric field, while Flower-Nordheim（F-N） tunneling occurs at higher biasing voltages.

关键词： titanium dioxide (TiO 2 ) high- k material sol-gel thin films atomic force microscopy (AFM) capacitance-voltage ( C-V ) analysis

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