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COVID TCL:A Joint Metric Loss Function for Diagnosing COVID-19 Patient in the Early and Incubation Period

Computer systems science & Engineering 2023年第10期47卷 187-204页

作者： Rui Wen Jie Zhou Zhongliang shen Xiaorui Zhang sunil kumar Jha Department of Electromechanical Engineering Zhejiang Business Technology InstituteNingbo315012China Engineering Research Center of Digital Forensics Ministry of EducationJiangsu Engineering Center of Network MonitoringSchool of Computer and SoftwareNanjing University of Information Science&TechnologyNanjing210044China Wuxi Research Institute Nanjing University of Information Science&TechnologyWuxi214100China Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Nanjing University of Information Science&TechnologyNanjing210044China Department of Physics Faculty of ScienceAdani UniversityAhmedabadIndia

Convolution Neural Networks(CNN)can quickly diagnose COVID-19 patients by analyzing computed tomography(CT)images of the lung,thereby effectively preventing the spread of ***,the existing CNN-based COVID-19 diagnosis models do consider the problem that the lung images of COVID-19 patients in the early stage and incubation period are extremely similar to those of the non-COVID-19 *** reduces the model’s classification sensitivity,resulting in a higher probability of the model misdiagnosing COVID-19 patients as non-COVID-19 *** solve the problem,this paper first attempts to apply triplet loss and center loss to the field of COVID-19 image classification,combining softmax loss to design a jointly supervised metric loss function COVID Triplet-Center Loss(COVID-TCL).Triplet loss can increase inter-class discreteness,and center loss can improve intra-class ***,COVID-TCL can help the CNN-based model to extract more discriminative features and strengthen the diagnostic capacity of COVID-19 patients in the early stage and incubation ***,we use the extreme gradient boosting(XGBoost)as a classifier to design a COVID-19 images classification model of CNN-XGBoost architecture,to further improve the CNN-based model’s classification effect and operation *** experiment shows that the classification accuracy of the model proposed in this paper is 97.41%,and the sensitivity is 97.61%,which is higher than the other 7 reference *** COVID-TCL can effectively improve the classification sensitivity of the CNN-based model,the CNN-XGBoost architecture can further improve the CNN-based model’s classification effect.

关键词： Covid-19 diagnose convolutional neural networks XGBoost COVID triplet-center loss early and incubation COVID-19 patients

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soil Properties of a Tropical savannah in the Eastern Ghats of India

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Open Journal of soil science（土壤科学期刊） 2012年第4期

作者： Rachna Chandra Narayanan Ganesan Belasenti Anjan kumar Prusty Parapurath Abdul Azeez Environmental Impact Assessment Division sálim Ali Centre for Ornithology and Natural History (sACON)

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健康志愿者18F-FsPG摄取的生理特性

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国际医学放射学杂志 2016年第4期 442-443页

作者： C.Mosci M.kumar K.smolarz N.Koglin A.W.stephens M.schwaiger 蒋苏香 Molecular Imaging Program Department of RadiologyDepartment of Materials Science and Engineering Stanford University

摘要目的为了评价健康志愿者的（s）-4-3-18F氟丙基谷氨基酸(18F-FsPG)的正常生物分布和动力学,将18F-FsPG的平均和最大标准化摄取值(sUVmean和sUVmax)分别与通过不同器官的18F-FDG比较。材料与方法该草案由各自所属管理当局评定和认可... 详细信息

摘要目的为了评价健康志愿者的（s）-4-3-18F氟丙基谷氨基酸(18F-FsPG)的正常生物分布和动力学,将18F-FsPG的平均和最大标准化摄取值(sUVmean和sUVmax)分别与通过不同器官的18F-FDG比较。材料与方法该草案由各自所属管理当局评定和认可。分别给予5名受试者(女3名,男

关键词：健康志愿者 FDG 放射性示踪剂 F-FsPG

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Prediction of genetic value for sweet cherry fruit maturity among environments using a 6K sNP array

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Horticulture Research 2019年第1期6卷 1623-1637页

作者： Craig M.Hardner Ben J.Hayes satish kumar stijn Vanderzande Lichun Cai Julia Piaskowski JoséQuero-Garcia JoséAntonio Campoy Teresa Barreneche Daniela Giovannini Alessandro Liverani Gérard Charlot Miguel Villamil-Castro Nnadozie Oraguzie Cameron P.Peace University of Queensland Queensland Alliance for Agriculture and Food InnovationBrisbaneQLD 4072Australia The New Zealand Institute for Plant and Food Research Limited Hawke’s Bay Research CentreHastings 4130New Zealand Department of Horticulture Washington State UniversityPullmanWA 99164USA Department of Horticulture Michigan State UniversityEast LansingMI 48824USA UMR 1332 BFP INRAUniversity of Bordeaux33140 Nouvelle-AquitaineFrance Council for Agricultural Research and Economics(CREA) Fruit Unit of ForlìVia la Canapona1 bis47121 Emilia-RomagnaItaly Centre Technique Interprofessionnel des Fruits et Légumes(CTIFL) 751 Chemin de Balandran30127 BellegardeFrance Department of Horticulture Washington State UniversityIrrigated Agriculture Research and Extension Center24106N Bunn RoadProsserWA 99350USA

The timing of fruit maturity is an important trait in sweet cherry production and *** variation for phenology of fruit maturity in sweet cherry appears to be under strong genetic control,but that control might be complicated by phenotypic instability across *** such genotype-by-environment interaction(G×E)is a common phenomenon in crop plants,knowledge about it is lacking for fruit maturity timing and other sweet cherry *** this study,1673 genome-wide sNP markers were used to estimate genomic relationships among 597 weakly pedigree-connected individuals evaluated over two seasons at three locations in Europe and one location in the UsA,thus sampling eight‘environments’.The combined dataset enabled a single meta-analysis to investigate the environmental stability of genomic *** disequilibrium among marker loci declined rapidly with physical distance,and ordination of the relationship matrix suggested no strong structure among *** most parsimonious G×E model allowed heterogeneous genetic variance and pairwise covariances among ***-sense genomic heritability was very high(0.60–0.83),as was accuracy of predicted breeding values(>0.62).Average correlation of additive effects among environments was high(0.96)and breeding values were highly correlated across *** indicated that genomic models can be used in cherry to accurately predict date of fruit maturity for untested individuals in new *** G×E for this trait indicated that phenotypes of individuals will be stable across similar *** analyses for other sweet cherry traits,for which multiple years of data are commonly available among breeders and cultivar testers,would be informative for predicting performance of elite selections and cultivars in new environments.

关键词： maturity environments breeding

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肥胖病人异位及血浆脂质水平与骨髓脂肪呈正相关

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国际医学放射学杂志 2014年第1期 70-70页

作者： M.A.Bredella G.M.Gill A.V.Gerweck M.G.Landa V.kumar s.M.Daley 袁涛 Department of radiology and neuroendocrine unit Massachusetts general hospital and Harvard medical schoolYawley 6E55 Fruit STBostonMA 02114

目的观察异位及血浆脂质水平与骨髓脂肪的相关性,其推论假设是:作为干细胞分化的标志,青年男性与女性肥胖者的异位及血浆脂质与骨髓脂肪可能呈正相关。方法

关键词：骨髓脂肪血浆脂质异位

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FDG PET在监测胃肠道淋巴瘤治疗疗效中的应用价值

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中国临床医学 2004年第3期11卷 352-354页

作者：修雁 kumar Rakesh 孙晓光 Potenta scott Mavi Ayse Zhuang Hongming Yu Jian Q Dhurairaj T 陈绍亮 Alavi A 复旦大学附属中山医院核医学科美国宾夕法尼亚大学医学中心放射科核医学部 Philadelphia19104PAUSA 上海第二医科大学附属仁济医院核医学科

目的 :探讨FDG -PET在监测胃肠道淋巴瘤治疗疗效中的应用。方法 :对 19例不同类型胃肠道淋巴瘤患者进行回顾性分析 (2例霍奇金氏淋巴瘤 ,15例非霍奇金氏淋巴瘤 ,2例mantle细胞淋巴瘤 )。 3例为胃部淋巴瘤 ,14例为小肠淋巴瘤 ,2例为结肠... 详细信息

目的 :探讨FDG -PET在监测胃肠道淋巴瘤治疗疗效中的应用。方法 :对 19例不同类型胃肠道淋巴瘤患者进行回顾性分析 (2例霍奇金氏淋巴瘤 ,15例非霍奇金氏淋巴瘤 ,2例mantle细胞淋巴瘤 )。 3例为胃部淋巴瘤 ,14例为小肠淋巴瘤 ,2例为结肠淋巴瘤。所有患者进行治疗前及治疗后PET显像。显像结果与临床结果相比较。结果 :19例患者的治疗前扫描中 ,17例 (89% )为FDG摄取明显增强 ,2例显示病灶部位FDG摄取轻度增强。所有患者治疗后随访PET扫描 ,13例PET图像上未见明显异常FDG摄取 ,6例原病灶部位仍存在异常FDG摄取。FDGPET扫描阴性的患者中 ,仅有 1例 1年后复发 ,占7.7% ,而所有 6例 (10 0 % )治疗后PET随访仍阳性的患者 ,在 1年的随访当中复发。结论 :FDG -PET在监测胃肠道淋巴瘤治疗反应方面有潜在的应用价值。

关键词： FDG PET 监测胃肠道淋巴瘤治疗氟化脱氧葡萄糖正电子断层显像

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Laparoscopic ventral mesh rectopexy for complete rectal prolapse: A retrospective study evaluating outcomes in North Indian population

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World Journal of Gastrointestinal surgery 2016年第4期8卷 321-325页

作者： Abhijit Chandra saket kumar Ajeet Pratap Maurya Vishal Gupta Vivek Gupta Rahul Department of surgical Gastroenterology King George’s Medical University

AIM: To analyze the outcomes of laparoscopic ventral mesh rectopexy in the management of complete rectal prolapse(CRP) in North Indian patients with inherent bulky and redundant colon. METHODs: The study was conducted at a tertiary health care center of North India. Between January 2010 and October 2014, 15 patients who underwent laparoscopic ventral mesh repair for CRP, were evaluated in the present study. Perioperative outcomes, improvement in bowel dysfunction or appearance of new complications were documented from the hospital records maintained prospectively. REsULTs: Fifteen patients(9 female) with a median age of 50 years(range, 15-68) were included in the study. The median operative time was 200 min(range, 180-350 min) and the median post-operative stay was 4 d(range, 3-21 d). No operative mortality occurred. One patient with inadvertent small bowel injury required laparotomy on post-operative day 2. At a median follow-up of 22 mo(range, 4-54 mo), no prolapse recurrence was reported. No mesh-related complication was encountered. Wexner constipation score improved significantly from the preoperative value of 17(range, 5-24) to 6(range, 0-23)(P severity index score from 24(range, 0-53)to 2(range, 0-53)(P = 0.007). No de novo constipation or fecal incontinence was recorded during the followup. On personal conversation, all patients expressed satisfaction with the outcome of their treatment. CONCLUsION: Our experience indicates that laparoscopic ventral mesh rectopexy is an effective surgical option for CRP in North Indian patients having a bulky redundant colon.

关键词： Redundant sigmoid Constipation Complete rectal prolapse Ventral rectopexy Indian population

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Diversity of endophytic fungi associated with the medicinally important aromatic plant Gaultheria fragrantissima

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studies in Fungi 2018年第1期3卷 309-320页

作者： sarma P Dkhar Ms Kayang H kumar M Dubey NK Raghuwanshi R Microbial Ecology Laboratory Department of BotanyNorth Eastern Hill UniversityShillong793022 Department of Botany Banaras Hindu UniversityVaranasi221005 Department of Botany Mahila MahavidyalayaBanaras Hindu UniversityVaranasi221005

A total of thirty three(33)endophytic fungi including sterile mycelia were isolated from the leaf,stem and roots of medicinally important aromatic plant Gaultheria *** of the fungi belonged to the phylum *** total percentage colonization frequency(%CF)of each endophytic fungal species was calculated of which Juxtiphoma eupyrena showed highest colonization frequency(20.14%)in the leaf whereas Globisporangium irregulare was found to have highest colonization frequency in the stem(14.58%)and in the roots,Trichoderma viride was observed to have the highest colonization frequency of 21.43%.Diversity of endophytic fungi in the roots was found to be higher as compared to the other plant tissues.

关键词： Colonization frequency endophytic fungi Jaccards’s index relative abundance

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A Critical Overview on Quantum Computing

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Journal of Quantum Computing 2020年第4期2卷 181-192页

作者： saptarshi sahoo Amit kumar Mandal Pijus Kanti samanta Indranil Basu Pratik Roy Institute of Engineering and Management salt Lake Electronics Complex Kolkata700091West BengalIndia Department of Physics(PG&UG) Prabhat Kumar CollegeContai721404West BengalIndia

Quantum Computing and Quantum Information science seem very promising and developing rapidly since its inception in early 1980s by Paul Benioff with the proposal of quantum mechanical model of the Turing machine and later By Richard Feynman and Yuri Manin for the proposal of a quantum computers for simulating various problems that classical computer could *** computers have a computational advantage for some problems,over classical computers and most applications are trying to use an efficient combination of classical and quantum computers like shor’s factoring *** areas that are expected to be benefitted from quantum computing are Machine Learning and deep learning,molecular biology,genomics and cancer research,space exploration,atomic and nuclear research and macro-economic *** paper represents a brief overview of the state of art of quantum computing and quantum information science with discussions of various theoretical and experimental aspects adopted by the researchers.

关键词： Quantum computing quantum information science

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Imaging evaluation of traumatic thoracolumbar spine injuries: Radiological review

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World Journal of Radiology 2015年第9期7卷 253-265页

作者： shivanand Gamanagatti Deepak Rathinam Krithika Rangarajan Atin kumar Kamran Farooque Vijay sharma Department of Radiology JPNA Trauma Center All India Institute of Medical Sciences Department of Orthopedics JPNA Trauma Center All India Institute of Medical Sciences

spine fractures account for a large portion of musculoskeletal injuries worldwide. A classification of spine fractures is necessary in order to develop a common language for treatment indications and outcomes. several classification systems have been developed based on injury anatomy or mechanisms of action, but they have demonstrated poor reliability, have yielded little prognostic information, and have not been widely used. For this reason, the Arbeitsgemeinschaftfür Osteosynthesefragen(AO) committee has classified thorocolumbar spine injuries based on the pathomorphological criteria into3 types(A: Compression; B: Distraction; C: Axial torque and rotational deformity). Each of these types is further divided into 3 groups and 3 subgroups reflecting progressive scale of morphological damage and the degree of instability. Because of its highly detailed sub classifications, the AO system has shown limited interobserver variability. It is similar to its predecessors in that it does not incorporate the patient's neurologic *** need for a reliable, reproducible, clinically relevant, prognostic classification system with an optimal balance of ease of use and detail of injury description contributed to the development of a new classification system, the thoracolumbar injury classification and severity score(TLICs). The TLICs defines injury based on three clinical characteristics: injury morphology, integrity of the posterior ligamentous complex, and neurologic status of the patient. The severity score offers prognostic information and is helpful in decision making about surgical vs nonsurgical management.

关键词： Trauma spine Thoracolumbar Classification Manageme

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