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Pattern recognition of seismogenic nodes using Kohonen selforganizing map: example in west and south west of Alborz region in Iran

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Earthquake Science 2017年第3期30卷 145-155页

作者： Mostafa Allamehzadeh soma Durudi Leila Mahshadnia Seismology Department International Institute of Earthquake Engineering and SeismologyIIEES

Pattern recognition of seismic and mor- phostructural nodes plays an important role in seismic hazard assessment. This is a known fact in seismology that tectonic nodes are prone areas to large earthquake and have this potential. They are identified by morphostructural analysis. In this study, the Alborz region has considered as studied case and locations of future events are forecast based on Kohonen Self-Organized Neural Network. It has been shown how it can predict the location of earthquake, and identifies seismogenic nodes which are prone to earthquake of M5.5＋ at the West of Alborz in Iran by using International Institute Earthquake Engineering and Seismology earthquake catalogs data. First, the main faults and tectonic lineaments have been identified based on MZ （land zoning method） method. After that, by using pattern recognition, we generalized past recorded events to future in order to show the region of probable future earthquakes. In other word, hazardous nodes have determined among all nodes by new catalog generated Self-organizing feature maps （SOFM）. Our input data are extracted from catalog, consists longitude and latitude of past event between 1980-2015 with magnitude larger or equal to 4.5. It has concluded node D1 is candidate for big earthquakes in comparison with other nodes and other nodes are in lower levels of this potential.

关键词： Clustering - Earthquake prediction ~ Self-organizing feature maps (SOFM)

Identification of genes associated with gall bladder cell carcinogenesis:Implications in targeted therapy of gall bladder cancer

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World Journal of Gastrointestinal Oncology 2023年第12期15卷 2053-2063页

作者： Ishita Ghosh Ruma Dey Ghosh soma Mukhopadhyay Department of Molecular Biology Netaji Subhas Chandra Bose Cancer Research InstituteKolkata 700094India

Gall bladder cancer(GBC)is becoming a very devastating form of hepatobiliary cancer in *** year new cases of GBC are quite high in *** recent advanced multimodality treatment options,the survival of GBC patients is very *** the disease is diagnosed at the advanced stage(with local nodal metastasis or distant metastasis)or surgical resection is inoperable,the prognosis of those patients is very ***,perspectives of targeted therapy are being *** therapy includes hormone therapy,proteasome inhibitors,signal transduction and apoptosis inhibitors,angiogenesis inhibitors,and immunotherapeutic *** such signal transduction inhibitor is the specific short interfering RNA(siRNA)or short hairpin RNA(shRNA).For developing siRNAmediated therapy shRNA,although several preclinical studies to evaluate the efficacy of these key molecules have been performed using gall bladder cells,many more clinical trials are *** date,many such genes have been *** review will discuss the recently identified genes associated with GBC and those that have implications in its treatment by siRNA or shRNA.

关键词： Gall bladder cancer Gene biomarker Targeted therapy siRNA mediated therapy Prognosis Advanced therapy of gall bladder cancer

Effect of reducing agents on the structure of zinc oxide under microwave irradiation

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Advances in Manufacturing 2013年第2期1卷 183-186页

作者： Monica Debbarma soma Das Mitali Saha Department of Chemistry National Institute of Technology

Zinc oxide was synthesized from zinc sulphate using different reducing agents under microwave irradia- tion. The influence of sodium borohydride, hydrazine hydrate and urea on the shape and size of the products were investigated by scanning electron microscopy （SEM） and X-ray diffraction （XRD）. SEM showed the nano-sized spherical and rectangular shaped structures in case of sodium borohydride and hydrazine hydrate, whereas micro-sized hexagonal structures were formed in case of urea under the same irradiation power. The reducing agents played an important role in forming the various structures. Thus different shapes and size of structures were produced by only varying the reducing agent, which had wide applications in various fields.

关键词： Zinc oxide Microwave Sodiumborohydride Hydrazine hydrate Urea

Synthesis of carbon nanosheet from barley and its use as non-enzymatic glucose biosensor

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Journal of Pharmaceutical Analysis 2014年第6期4卷 351-359页

作者： soma Das Mitali Saha Department of Chemistry National Institute of TechnologyAgartala 799046TripuraIndia

In this work,carbon nanosheet（CNS） based electrode was designed for electrochemical biosensing of *** has been obtained by the pyrolysis of barley at 600-750℃ in a muffle furnace：it was then purified and *** CNS has been characterized by scanning electron microscopy（SEM）.X-ray diffraction（XRD） and Raman spectroscopic *** electrochemical activity of CNS-based electrode was investigated by linear sweep vollammetry（LSV） and square wave voltammetry（SWV）,for the oxidation of glucose in 0.001 M H2SO4（pH 6.0）.The linear range of the sensor was found to be 10-4-10-6M（1-100 μM） within the response time of 4 ***,its sensitivity reached as high as 26.002±0.01 μA/μM *** experiments revealed that the proposed electrode offered an excellent electrochemical activity towards the oxidation of glucose and could be applied for the construction of non-enzymatic glucose biosensors.

关键词： Carbon nanosheet β-D glucose Linear sweep voltammetry Square wave voltammetry Pharmaceutical analysis

State of machine and deep learning in histopathological applications in digestive diseases

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World Journal of Gastroenterology 2021年第20期27卷 2545-2575页

作者： soma Kobayashi Joel H Saltz Vincent W Yang Department of Biomedical Informatics Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794United States Department of Medicine Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794United States Department of Physiology and Biophysics Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794United States

Machine learning(ML)-and deep learning(DL)-based imaging modalities have exhibited the capacity to handle extremely high dimensional data for a number of computer vision *** these approaches have been applied to numerous data types,this capacity can be especially leveraged by application on histopathological images,which capture cellular and structural features with their highresolution,microscopic ***,these methodologies have demonstrated promising performance in a variety of applications like disease classification,cancer grading,structure and cellular localizations,and prognostic predictions.A wide range of pathologies requiring histopathological evaluation exist in gastroenterology and hepatology,indicating these as disciplines highly targetable for integration of these *** have also already been primed to consider the impact of these algorithms,as development of real-time endoscopic video analysis software has been an active and popular field of *** heightened clinical awareness will likely be important for future integration of these methods and to drive interdisciplinary collaborations on emerging *** provide an overview on the application of these methodologies for gastrointestinal and hepatological histopathological slides,this review will discuss general ML and DL concepts,introduce recent and emerging literature using these methods,and cover challenges moving forward to further advance the field.

关键词： Artificial intelligence Machine learning Deep learning Gastroenterology Hepatology Histopathology

Ecology and management of the black inch worm, Hyposidra talaca Walker (Geometridae： Lepidoptera) infesting Camellia sinensis (Theaceae)： A review

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Journal of Integrative Agriculture 2017年第10期16卷 2115-2127页

作者： Somnath Roy soma Das Gautam Handique Ananda Mukhopadhyay Narayanannair Muraleedharan Department of Entomology Tocklai Tea Research Institute Tea Research Association Jorhat 785008 India Entomology Research Unit Department of Zoology University of North Bengal Siliguri 734014 India

The black inch worm, Hyposidra talaca （Walker）（Geometridae： Lepidoptera） has earned considerable importance as a defoliator during last decade in north east India. Characteristic features of H. talaca, Such as switching from wild plants to Camellia sinensis, and completion of 6-8 generations in a year without winter diapause appear to be the major reasons for persistence of the defoliator on C. sinensis. There are reports on the aggressive infestation of the pest on C. sinensis than on alternate host plants and development of high tolerance^resistance to certain insecticides. Till date, more than one hundred alternate host plants have been recorded for H. talaca, but with very few natural enemies. To manage this pest chemically, synthetic pesticides are widely used. Integrated management is recently being encouraged wherein cultural, mechanical, physical, biological and chemical methods have been contemplated. This review collates the work and literature on the ecology of H. talaca and offers an analysis of the problems encountered in managing the defoliator in tea plantations. Further, future directions for better management of H. talaca are suggested.

关键词： Hyposidra talaca black inch worm tea bionomics resistance integrated pest management (IPM)

土豆淀粉基杏仁状炭及其非酶检测蔗糖(英文)

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新型炭材料 2015年第3期30卷 244-251页

作者： soma Das Mitali Saha Department of Chemistry National Institute of Technology

以土豆淀粉为原料,通过先在400-500℃空气中炭化,再于800℃裂解制备出杏仁状炭（CNA）颗粒,并组装成高灵敏度和选择性的非酶蔗糖传感器。采用扫描电镜、X射线衍射仪、X射线光电子能谱仪、原子力和荧光显微镜对样品进行表征。通过循环伏... 详细信息

以土豆淀粉为原料,通过先在400-500℃空气中炭化,再于800℃裂解制备出杏仁状炭（CNA）颗粒,并组装成高灵敏度和选择性的非酶蔗糖传感器。采用扫描电镜、X射线衍射仪、X射线光电子能谱仪、原子力和荧光显微镜对样品进行表征。通过循环伏安、微分脉冲伏安法及线性扫描法在酸性溶液中对蔗糖进行电化学检测。结果表明,这种新传感器对蔗糖氧化呈现良好的响应,具有宽的线性范围（R2=0.996 79）,高灵敏度（~41.737 25±0.01μAμM-1·cm-2）、低的检测限（1μmol/L）,高的稳定性及短的响应时间（9 s）。

关键词：蔗糖循环伏安微分脉冲伏安法线性扫描伏安

Entropy Solution to Nonlinear Elliptic Problem with Non-local Boundary Conditions and L^1-data

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Journal of Partial Differential Equations 2017年第3期30卷 201-220页

作者： OUARO Stanislas soma Safimba Universite Ouaga I Pr Joseph KI-ZERBO LAboratoire de Mathematique et Informa-tique (LAMI) Unite de Formation et de Recherches en Sciences Exactes et Appliqu~esD~artement de Mathematiques 03 BP 7021 Ouaga 03 Ouagadougou Burkina Faso.

We study a nonlinear elliptic problem with non-local boundary conditions and Ll-data. We prove an existence and uniqueness result of an entropy solution.

关键词： Entropy solution non-local boundary conditions Leray-Lions operator.

Forensic Identification of Four Indian Snake Species Using Single Multiplex Polymerase Chain Reaction

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Journal of Forensic Science and Medicine 2022年第3期8卷 81-87页

作者： Ishani Mitra soma Roy Ikramul Haque Division of Biology Central Forensic Science LaboratoryKolkataWest BengalIndia Office of Director Central Forensic Science LaboratoryChandigarhIndia

Among different endangered animal species,snakes are the most neglected creature looked at with apathy and therefore,are ruthlessly killed,illegally trafficked,and poached for their venom,lucrative skin,meat,and bones for manufacturing of medicines,accessories,and food *** the identity of the endangered snake species is important for punishing the offenders under Wildlife Protection Act(WPA)(1972)but morphological characters fail to establish identity as they are often *** technique of identification of snake species at molecular level holds very effective conclusion in punishing ***,we have constructed and demonstrated a novel multiplexing polymerase chain reaction technique,using 16S rRNA and C-mos gene for identification of four Indian snake species,namely Ptyas mucosa,Daboia russellii,Naja naja,and Xenochrophis *** are listed in Appendix-II and III of convention on international trade in endangered species of wild fauna and flora and Schedule II;Part II of Indian WPA,***,it may be considered a functional tool for establishing species-specific identity of four Indian snake species and promising to be useful for their conservation.

关键词： 16S rRNA C-mos forensic identification Indian snakes multiplex polymerase chain reaction amplification Wildlife Protection Act(1972)