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World journal of Gastroenterology 2021年第26期27卷 4194-4207页

作者： Irving Levine arvind j trindade Division of Gastroenterology Long Island Jewish Medical CenterZucker School of Medicine at Hofstra/NorthwellNorthwell Health SystemNew Hyde ParkNY 11040United States

Endoscopic ultrasound tissue acquisition,in the form of both fine needle aspiration(EUS-FNA)and fine needle biopsy(EUS-FNB),is utilized for pancreatic mass lesions,subepithelial lesions,and lymph node *** procedures are safe and yield high diagnostic *** its high diagnostic yield,EUS-FNA has potential limitations associated with cytological aspirations,including inability to determine histologic architecture,and a small quantitative sample for further immunohistochemical ***-FNB,with its larger core biopsy needle,was designed to overcome these potential ***,it remains unclear which technique should be used and for which *** trials are plagued by heterogeneity at every stage of comparison;including variable needles used,and different definitions of endpoints,which therefore limit ***,we present a review of prospective trials,systematic reviews,and meta-analyses on studies examining EUS-FNA vs *** comparative trials of EUS-FNA vs EUS-FNB primarily focus on pancreatic mass lesions,and yield conflicting results in terms of demonstrating the superiority of one ***,consistent among trials is the potential for diagnosis with fewer passes,and a larger quantity of sample achieved for next generation *** regard to subepithelial lesions and lymph node biopsy,fewer prospective trials exist,and larger prospective studies are *** on the available literature,we would recommend EUS-FNB for peri-hepatic lymph nodes.

关键词： Endoscopic ultrasound fine needle aspiration Endoscopic ultrasound fine needle biopsy Pancreatic lesions Subepithelial lesions Lymph node biopsy

Advanced imaging in surveillance of Barrett’s esophagus: Is the juice worth the squeeze?

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World journal of Gastroenterology 2019年第25期25卷 3108-3115页

作者： Sara A Cerrone arvind j trindade Division of Gastroenterology Long Island Jewish Medical CenterZucker School of Medicine at Hofstra/NorthwellNorthwell Health System

Esophageal cancer is on the *** known precursor lesion is Barrett’s esophagus(BE).Patients with dysplasia are at higher risk of developing esophageal *** the gold standard for surveillance endoscopy involves taking targeted biopsies of abnormal areas as well as random biopsies every 1-2 cm of the length of the Barrett’*** studies have shown that this surveillance can miss dysplasia and *** imaging technologies have been developed that may help detect dysplasia in *** opinion review discusses advanced imaging in BE surveillance endoscopy and its utility in clinical practice.

关键词： Barrett’s esophagus Advanced imaging Chromoendoscopy Endomicroscopy

Management of Barrett’s esophagus with dysplasia refractory to radiofrequency ablation

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World journal of Gastroenterology 2020年第17期26卷 2030-2039页

作者： Kara L Raphael arvind j trindade Division of Gastroenterology Long Island Jewish Medical CenterZucker School of Medicine at Hofstra/NorthwellNorthwell Health SystemNew Hyde ParkNY 11040United States

Radiofrequency ablation(RFA)is very effective for eradication of flat Barrett’s mucosa in dysplastic Barrett’s esophagus after endoscopic resection of raised ***,in a minority of the time,RFA may be ineffective at eradication of the Barrett’s *** complete eradication of intestinal metaplasia can be challenging in these *** review article focuses on the management of patients with dysplastic Barrett’s esophagus refractory to RFA *** strategies discussed in this review include optimizing the RFA procedure,optimizing acid suppression(with medical,endoscopic,and surgical management),cryotherapy,hybrid argon plasma coagulation,and EndoRotor resection.

关键词： Low-grade dysplasia High-grade dysplasia Radiofrequency ablation Cryotherapy EndoRotor Hybrid argon plasma coagulation Argon plasma coagulation

Emergency department utilization for gastrointestinal care and patient characteristics associated with hospital admission in a national cohort

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Gastroenterology Report 2023年第1期11卷 566-568页

作者： Kelly Suchman Nina Kohn arvind j.trindade Division of Gastroenterology Zucker School of Medicine at Hofstra/NorthwellLong Island Jewish Medical CenterNew Hyde ParkNYUSA Institute of Health Innovations and Outcomes Research Feinstein Institutes for Medical ResearchNorthwell HealthManhassetNYUSA

Introduction Gastrointestinal diseases and care in the USA account for a significant amount of healthcare resources and spending,recently totaling>$119 billion dollars annually[1].In addition to ambulatory sites and clinics,a substantial portion of gastrointestinal care occurs through the emergency department(ED).Though the overall rate of ED visits in the USA has remained stable over the past 10 years[2],the number of visits for gastrointestinal complaints has been increasing[1,3],contributing to rising healthcare costs.

关键词： gastrointestinal diseases ambulatory

Clinical controversies in endoscopic ultrasound

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Gastroenterology Report 2013年第1期1卷 33-41页

作者： arvind j.trindade Tyler M.Berzin Center for Advanced Endoscopy Division of GastroenterologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA.USA

The field of diagnostic and therapeutic endoscopic ultrasound(EUS)is growing *** EUS has enhanced our ability to diagnose and treat a wide variety of GI conditions,there are many controversial issues regarding the appropriate application of EUS *** this review we discuss five controversial topics in EUS:the utility of EUS in staging of esophageal and gastric cancer;selection of appropriate needle gauge for fine needle aspiration(FNA);use of the stylet in FNA;and the emerging role of contrast agents in endoscopic ultrasound.

关键词： Endoscopic ultrasound controversies gastric cancer esophageal cancer contrast enhanced fine needle aspiration

Germination strategies of annual and short-lived perennial species in the Arabian Desert

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journal of Arid Land 2020年第6期12卷 1071-1082页

作者： arvind BHATT David j GALLACHER Paulo R M SOUZA-FILHO Lushan Botanical Garden Chinese Academy of SciencesJiujiang 332900China School of Life and Environmental Sciences The University of SydneyNarrabri NSW 2390Australia Multidisciplinary Center of Barra Federal University of Western BahiaBarra 47100-000Brazil

Germination timing is highly regulated in short-lived plant species since it strongly influences recruitment success of *** deserts,the spatiotemporal distribution of plant-available water is highly episodic and unpredictable,making winter months more favorable for seed germination when other abiotic conditions *** hypothesized that changes in photoperiod and thermoperiod would impact germination more in seeds that had undergone in situ *** assessed 21 annual and short-lived perennial species in the Arabian Desert to find(1)if seeds were dormant at maturity,(2)if in situ seed storage increased germination percentage compared with no storage,(3)if photoperiod and thermoperiod germination requirements were influenced by in situ storage,and(4)if a phylogenetic association in seed germination could be *** of each species collected in early 2017 were divided into two *** was tested for germination within one week(fresh seeds).The other was stored in situ at the maternal location(stored seeds)until October 2017 and tested for seed germination in the first week of *** germination was conducted in incubators at two thermoperiods(15℃/20℃ and 20℃/30℃;12 h/12 h),and two photoperiods(12 and 0 h light per day).Results indicated that seed germination percentages of 13 species were significantly enhanced by in situ storage.A thermoperiod response was exhibited by stored,but not fresh *** exposure increased germination of fresh seeds but had only a minimal effect on stored *** traits exhibited no phylogenetic *** result indicated that selection pressure for germination strategy was stronger than that for taxonomic traits of these desert species.

关键词： desert species dormancy germination light temperature phylogeny

Fuzzy Logic Based Handover Authentication in 5g Telecommunication Heterogeneous Networks

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Computer Systems Science & Engineering 2023年第7期46卷 1141-1152页

作者： j.Divakaran arvind Chakrapani K.Srihari Vivekanandha College of Engineering for Women TiruchengodeNamakkal637205TamilnaduIndia Karpagam College of Engineering Coimbatore641032TamilnaduIndia SNS College of Technology Coimbatore641035TamilnaduIndia

Under various deployment circumstances,fifth-generation(5G)telecommunications delivers improved network compound management with fast communication *** to the introduction of the Internet of Things(IoT)in data management,the majority of the ultra-dense network models in 5G networks frequently have decreased spectral efficiency,weak handover management,and *** majority of traditional handover authentication models are seriously threatened,making them vulnerable to a variety of security *** authentication of networked devices is the most important ***,a model that incorporates the handover mechanism and authentication model must be *** article uses a fuzzy logic model to create a handover and key management system that focuses on cloud handover management and authentication *** order to decrease delays in 5G networks,the fuzzy logic is built with multiple criteria that aim to reduce the number of executed handovers and target cell *** simulation is run to evaluate the model’s performance in terms of latency,spatial complexity,and other metrics related to authentication attack validation.

关键词： Handover authentication mobility management fuzzy logic latency 5G IoT MATLAB 3gpp

Assessment of biomass and net primary productivity of a dry tropical forest using geospatial technology

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journal of Forestry Research 2019年第1期30卷 157-170页

作者： Tarun Kumar Thakur S.L.Swamy arvind Bijalwan Mammohan j.R.Dobriyal Department of Environmental Science Indira Gandhi National Tribal University (IGNTU) Department of Forestry Indira Gandhi Agricultural University Faculty of Technical Forestry Indian Institute of Forest Management Navsari Agriculture University

This study quantifies biomass, aboveground and belowground net productivity, along with additional environmental factors over a 2-3 year period in Barnawapara Sanctuary of Chhattisgarh, India through satellite remotesensing and GIS techniques. Ten sampling quadrates20×20, 5×5 and 1×1 m were randomly laid for overstorey (OS), understorey (US) and ground vegetation(GS), respectively. Girth of trees was measured at breast height and collar diameters of shrubs and herbs at 0.1 m height. Biomass was estimated using allometric regression equations and herb biomass by harvesting. Net primary productivity (NPP) was determined by Ssumming biomass increment and litter crop values. Aspect and slope influenced the vegetation types, biomass and NPP in different forests. Standing biomass and NPP varied from 18.6 to101.5 Mg ha^(-1) and 5.3 to 12.7 Mg ha^(-1) a^(-1), respectively,in different forest types. The highest biomass was found in dense mixed forest, while net production recoded in Teak forests. Both were lowest in degraded mixed forests of different forest types. OS, US and GS contributed 90.4, 8.7and 0.7%, respectively, for the total mean standing biomass in different forests. This study developed spectral models for the estimation of biomass and NPP using Normalized Difference Vegetation Index and other vegetation *** study demonstrated the potential of geospatial tools for estimation of biomass and net productivity of dry tropical forest ecosystem.

关键词： Allometric regression equations Fine root biomass Litter fall LAI NDVI Spectral models

Hereditary pancreatitis:An updated review in pediatrics

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World journal of Clinical Pediatrics 2022年第1期11卷 27-37页

作者： arvind Vasant Panchoo Grant H VanNess Edgardo Rivera-Rivera Trevor j Laborda Division of Gastroenterology Hepatology and NutritionThe Children’s Hospital of San AntonioSan AntonioTX 78207United States Department of Pediatrics Baylor College of MedicineHoustonTX 77030United States Faculty of Medicine Indiana University School of MedicineIndianapolisIN 46202United States Department of Pediatric Gastroenterology Parkview HealthFort WayneIN 46845United States

Hereditary Pancreatitis(HP)has emerged as a significant cause of acute,acute recurrent and chronic pancreatitis in the pediatric *** that it presents similarly to other causes of pancreatitis,a positive family history and/or isolation of a gene mutation are vital in its *** patterns remain complex,but mutations involving the PRSS1,SPINK1,CFTR and CTRC genes are commonly *** being first described in 1952,dozens of genetic alterations that modify the action of pancreatic enzymes have been *** children,these variants have been isolated in more than 50%of patients with chronic *** research has noted that such mutations in PRSS1,SPINK1 and CFTR genes are also associated with a faster progression from acute pancreatitis to chronic *** with HP are at increased risk of developing diabetes mellitus,exocrine pancreatic insufficiency,and pancreatic *** follows a multi-disciplinary approach with avoidance of triggers,surveillance of associated conditions,treatment of pancreatic insufficiency and use of endoscopic and surgical interventions for *** significant sequela,morbidity and a progressive nature,a thorough understanding of the etiology,pathophysiologic mechanisms,diagnostic evaluation,current management strategies and future research considerations for this evolving disease entity in pediatrics is warranted.

关键词： Hereditary pancreatitis Acute pancreatitis Acute recurrent pancreatitis Chronic pancreatitis Pancreatitis Pediatrics

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