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Automatic area estimation of algal blooms in water bodies from UAV images using texture analysis

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Water Science and Engineering 2024年第1期17卷 62-71页

作者： Ajmeria Rahul Gundu Lokesh Siddhartha goswami R.N.Ponnalagu Radhika Sudha Department of Electrical and Electronics Engineering Birla Institute of Technology&SciencePilani Hyderabad CampusTelangana 500078India

Algal blooms,the spread of algae on the surface of water bodies,have adverse effects not only on aquatic ecosystems but also on human *** adverse effects of harmful algal blooms(HABs)necessitate a convenient solution for detection and *** aerial vehicles(UAVs)have recently emerged as a tool for algal bloom detection,efficiently providing on-demand images at high spatiotemporal *** study developed an image processing method for algal bloom area estimation from the aerial images(obtained from the internet)captured using *** a remote sensing method of HAB detection,analysis,and monitoring,a combination of histogram and texture analyses was used to efficiently estimate the area of *** features like entropy(using the Kullback-Leibler method)were emphasized with the aid of a gray-level co-occurrence *** results showed that the orthogonal images demonstrated fewer errors,and the morphological filter best detected algal blooms in real time,with a precision of 80%.This study provided efficient image processing approaches using on-board UAVs for HAB monitoring.

关键词： Algal bloom Image processing Texture analysis Histogram analysis Unmanned aerial vehicles

Co-chaperone CHIP associates with expanded polyglutamine protein and promotes their degradation by proteasomes

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Co-chaperone CHIP associates with expanded polyglutamine pro...

Cracking the silent gallstone code:Wait or operate?

亚太地区国际脑研究研讨会

作者： Nihar Ranjan Jana Priyanka Dikshit anand goswami Nobuyuki Nukina Cellular and Molecular Neuroscience Laboratory National Brain Research CentreManesarGurgaon-122 050HaryanaIndia Cellular and Molecular Neuroscience Laboratory National Brain Research CentreManesarGurgaon-122 050HaryanaIndia Cellular and Molecular Neuroscience Laboratory National Brain Research CentreManesarGurgaon-122 050HaryanaIndia Laboratory for Structural Neuropathology RIKEN Brain Science Institute2-1 HirosawaWako-shiSaitama 351-0198Japan

＜正＞ A major hallmark of the polyglutamine diseases is the formation of neuronal intranuclear inclusions （NIIs） of the disease proteins that are ubiquitinated and often associated with various chaperones and proteasome components. But, how the polyglutamine proteins are ubiquitinated and degraded by the proteasomes are not known. Here, we demonstrate that CHIP （C-terminus of hsp70 interacting protein） co-immunoprecipitates with the polyglutamine-expanded huntingtin or ataxin-3 and associates with their aggregates.

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World Journal of Clinical Cases 2024年第16期12卷 2692-2697页

作者： Aakansha Giri goswami Somprakas Basu Department of General Surgery All India Institute of Medical SciencesRishikesh 249203UttarakhandIndia

The widespread availability of abdominal ultrasound has revealed the common occurrence of asymptomatic *** the treatment for symptomatic gallstones is clear,the benefits of minimally invasive laparoscopic cholecystectomy have sparked debate about the best approach to managing silent *** potential for asymptomatic gallstones to become symptomatic or lead to complications complicates the decision-making process regarding surgical intervention,as it's uncertain when or which patients might develop ***,risk stratification appears to play a critical role in guiding decisions about silent ***,there is no definitive evidence to direct management,and a consensus-based on high-quality evidence is yet to be established.

关键词： Asymptomatic gallstones Silent gallstones Cholecystectomy Gallbladder cancer Risk stratification

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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Investigation of point defect evolution and Voronoi cluster analysis for magnesium during nanoindentation

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Journal of Magnesium and Alloys 2023年第3期11卷 1029-1042页

作者： Pragyan goswami Snehanshu Pal Manoj Gupta Department of Metallurgical and Materials Engineering National Institute of TechnologyRourkelaOdisha 769008India Department of Mechanical Engineering National University of SingaporeSingapore 117575Singapore

The present study investigates the effect of nanoindentation on single-crystal magnesium specimens using the embedded-atom method potential in molecular dynamics *** are done under dynamic loading where the load-bearing capacity and change in the structural configuration are studied on the basal(Z-direction)and two prismatic planes(X-and Y-directions)with varying indenter *** investigation of structural evolution is done using atomic displacement analyses to measure the net magnitude of displacement,atomic strain analyses to evaluate the shear strain developed in the process,and Wigner-Seitz defect analyses to calculate the total vacancies at varied ***,Voronoi analyses are done when indented on the basal plane to identify the cluster distribution at different planar depths of the *** the analyses,it has been observed that the load-bearing capacity of the specimen varies with the indentation velocity and the direction of indentation on the ***,it is seen that the observed shear and total atomic displacement in the Z-direction is the least in comparison to the other two *** partial dislocation 1/3is seen to be majorly present and the population of dislocation loops is more abundant for lower indenter ***,clustersandare the major indices developed during nanoindentation on the basal plane where they exhibit symmetrical distribution as observed from the Z-direction.

关键词： Magnesium Molecular dynamics Nanoindentation Voronoi analysis Wigner-Seitz defect analysis

A Compact Quad-Band Sickle-Shaped Monopole Antenna for GSM 900/WiMax/WLAN Applications

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Computers, Materials & Continua 2022年第10期73卷 397-410页

作者： Sujit goswami Sujit Kumar Mandal Soumen Banerjee Department of Electronics and Communication Engineering National Institute of TechnologyDurgapur713213West BengalIndia Department of Electronics and Communication Engineering University of Engineering and ManagementNew TownKolkata700156West BengalIndia

In this paper a novel,compact,microstrip-fed,quad-band monopole antenna is presented for the application of Global System for Mobile communication(GSM 900),Worldwide Interoperability for Microwave Access(WiMAX)and Wireless Local Area Network(WLAN).The proposed antenna comprises of a sickle-shaped structure with four circular arc strips,and a modified rectangular ground *** four strips of the antenna are independently responsible for the four different resonant frequencies of the operating bands and can be tuned separately to control the radiation *** proposed quad-band antenna is designed to resonate at 940 MHz for GSM 900,2.5 and 3.5 GHz for WiMAX and 5.85 GHz for WLAN *** the four intended operating bands,the antenna exhibits impedance bandwidth of 60 MHz(905–965MHz),80 MHz(2.45–2.53 GHz),110 MHz(3.48–3.59 GHz)and 2.39 GHz(4.82–7.21 GHz),*** the resonance frequency of the four bands,the gain of the proposed antenna is obtained as 4.2,2.5,1.7 and 1.9 dBi,respectively.A prototype of the designed antenna is fabricated and a good agreement between simulated and measured results is ***,the proposed antenna shows good radiation characteristics and gains at all the four operating bands.

关键词： Antenna gain GSM 900 IEEE 802.11a monopole strips quad-band sickle-shaped WiMAX WLAN

Discovery of Early Tonian Calc-alkaline and Shoshonitic Metamafic Rocks from the North Purulia Shear Zone,Chhotanagpur Gneissic Complex,Eastern India:Implications of Proterozoic Sub-continental Lithospheric Mantle

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Acta Geologica Sinica(English Edition) 2023年第1期97卷 68-89页

作者： Bapi goswami Susmita DAS Ankita BASAK Chitta BHATTACHARYYA University of Calcutta 35 Ballygunge Circular RoadKolkata 700019India

Reports of shoshonitic rocks in Precambrian terrains are relatively ***-Grt amphibolites and Hbl-Bt mafic granulites occurring in the migmatitic gneisses of the Chhotanagpur Gneissic Complex(CGC)show calc-alkaline and shoshonitic *** porphyritic,sub-ophitic and poikilitic textures are noted in these *** parent magma was emplaced during the waning phase of the regional ***,these metamafics are similar to the GroupⅢpotassic and ultrapotassic rocks of Foley et al.(1987).The magma was derived from the metasomatized subcontinental lithospheric mantle(SCLM).Subduction-related sediment melts metasomatized the ***,the SCLM is a metasomatized phlogopite-amphibole-spinel-bearing harzburgite.1%–5%batch melting of the SCLM could produce the parental magma of the mafic *** and temperatures of metamorphic equilibration were carried out by pseudosection *** metamorphic assemblage(M_(1):Grt-Cpx-Pl-Qz)in garnetiferous amphibolite equilibrated at 740℃and 8.7 *** Cpx-Pl corona appeared around the garnet during decompression(M_(2):655℃,6 kbar).The Hbl-Pl symplectites around garnet formed during isobaric cooling(M_(3):580℃and 5.9 kbar).The emplacement of shoshonitic magma and subsequent decompression happened at the slab break-off stage of continental collision(~990 Ma).

关键词： calc-alkaline-shoshonitic magma amphibolite-granulite facies metamorphism post-collisional early Tonian eastern Indian Shield sub-continental lithospheric mantle

A Restricted SIR Model with Vaccination Effect for the Epidemic Outbreaks Concerning COVID-19

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Computer Modeling in Engineering & Sciences 2023年第12期137卷 2409-2425页

作者： Ibtehal Alazman Kholoud Saad Albalawi Pranay goswami Kuldeep Malik Department of Mathematics and Statistics College of ScienceImam Mohammad Ibn Saud Islamic UniversityRiyadh11566Saudi Arabia School of Liberal Studies Dr.B.R.Ambedkar University DelhiDelhi110006India

This paper presents a restricted SIRmathematicalmodel to analyze the evolution of a contagious infectious disease outbreak(COVID-19)using available *** new model focuses on two main concepts:first,it can present multiple waves of the disease,and second,it analyzes how far an infection can be eradicated with the help of *** stability analysis of the equilibrium points for the suggested model is initially investigated by identifying the matching equilibrium points and examining their *** basic reproduction number is calculated,and the positivity of the solutions is *** simulations are performed to determine if it is multipeak and evaluate vaccination’s *** addition,the proposed model is compared to the literature already published and the effectiveness of vaccination has been recorded.

关键词： Restricted SIR model equilibrium points and stability numerical simulation

Transplant-associated thrombotic microangiopathy:a rare but deadly complication post orthotopic heart transplantation

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Journal of Geriatric Cardiology 2022年第6期19卷 485-486页

作者： Jose Ruiz-Morales Maedeh Ganji Rohan goswami Division of Advanced Heart Failure&Transplant Cardiology Mayo ClinicJacksonvilleFloridaUSA Cardiology Department University of FloridaJacksonvilleFloridaUSA

Thrombotic microangiopathy(TMA)is potentially life-threatening condition caused by small-vessel microthrombi and is associated with schistocyte formation,low platelets and end-organ damage that may not be reversible.[1,2]As a life-threatening condition,TMA recognition in hospitalized patients after organ transplantation is key to improving ***-associated TMA(TATMA)can occur after both solid organ or hematopoietic stem cell transplantation and often mimics other disease processes such as thrombotic throm-bocytopenic purpura(TTP)with similar constellation of symptoms during *** present a rare case of a patient with TATMA after orthotopic heart transplantation.

关键词： thrombotic microangiopathy orthotopic