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Clinical approach to diarrheal disorders in allogeneic hematopoietic stem cell transplant recipients

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World Journal of Hematology 2016年第1期5卷 23-30页

作者： Shadi Hamdeh Abd Almonem M Abdelrahman Osama Elsallabi Ranjan Pathak Smith Giri Kailash Mosalpuria vijaya raj bhatt Department of Internal Medicine Creighton University School of Medicine Department of Medicine Reading Health System Reading Department of Medicine University of Tennessee Health Science Center Department of Internal Medicine Division of Hematology-Oncology University of Nebraska Medical Center

Diarrhea is a common complication of allogeneic hematopoietic stem cell transplant(HSCT), with an average incidence of approximately 40%-50%. A wide variety of etiologies can contribute to diarrhea in HSCT patients, including medication-induced mucosal inflammation, infections, graft-vs-host disease and cord colitis syndrome in umbilical cord blood transplant. Clinical manifestations can vary from isolated diarrheal episodes, to other organ involvement including pneumonia or myocarditis, and rarely multiorgan failure. The approach for diagnosis of diarrheal disorders in HSCT patients depends on the most likely cause. Given the risk of life-threatening conditions, the development of clinically significant diarrhea requires prompt evaluation, supportive care and specific therapy, as indicated. Serious metabolic and nutritional disturbances can happen in HSCT patients, and may even lead to mortality. In this review, we aim to provide a practical approach to diagnosis and management of diarrhea in the post-transplant period.

关键词： Diarrhea Medication-induced diarrhea Allogeneic hematopoietic stem cell transplant Enteric infection Graft-vs-host disease

An enhanced method for predicting and analysing forest fires using an attention-based CNN model

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Journal of Forestry Research 2024年第4期35卷 115-127页

作者： Shaifali bhatt Usha Chouhan Department of Mathematics Bioinformatics and Computer ApplicationsMANIT BhopalBhopalIndia

Prediction,prevention,and control of forest fires are crucial on at all *** effective fire detection systems can aid in their *** study proposes a novel CNN(convolutional neural network)using an attention blocks module which combines an attention module with numerous input layers to enhance the performance of neural *** suggested model focuses on predicting the damage affected/burned areas due to possible wildfires and evaluating the multilateral interactions between the pertinent *** results show the impacts of CNN using attention blocks for feature extraction and to better understand how ecosystems are affected by meteorological *** selected meteorological data,RMSE 12.08 and MAE 7.45 values provide higher predictive power for selecting relevant and necessary features to provide optimal performance with less operational and computational *** findings show that the suggested strategy is reliable and effective for planning and managing fire-prone regions as well as for predicting forest fire damage.

关键词： CNN Attention module Fire prediction Ecosystem Damage prediction

A tensile wearable SHF antenna with efficient communication in defense beacon technology

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Defence Technology（防务技术） 2024年第11期41卷 198-210页

作者： Pooja Naresh bhatt Rashmi Pandhare Department of Electronics and Communication Engineering Indian Institute of Information Technology(IIIT)NagpurMaharashtra 440001India Department of Electrical and Electronics Engineering IPS AcademyInstitute of Engineering and ScienceIndoreMP 440001 India

The study projects a flexible and compact wearable pear-shaped Super High Frequency(SHF)antenna that can provide detailed location recognition and tracking applicable to defense beacon *** mini aperture with electrical dimensions of 0.12λ_(0)×0.22λ_(0)×0.01λ_(0)attains a vast bandwidth over 3.1-34.5 GHz Super High Frequency(SHF)frequency band at S_(11)≤-10 dB,peak gain of 7.14 dBi and proportionately homogeneous radiation *** fractional bandwidth(%BW)acquired is 168%that envelopes diversified frequency spectrum inclusive of X band specifically targeted to all kinds of defense and military *** proposed antenna can be worn on a soldier's uniform and hence the Specific Absorption Rate simulation is *** Peak SAR Value over 1 g of tissue is 1.48 W/kg and for 10 g of tissue is 0.27 W/kg well under the safety *** flexibility is proven by analyzing the full electromagnetic simulations for various bending *** response analysis is attained with its Fidelity Factor and Group *** excellence is determined using Link Budget Analysis and it is seen that margin at 100 Mbps is 62 m and at 200 Mbps is 59 *** is fabricated along with experimental *** the results show harmony in shaping the antenna to provide critical situational awareness and data sharing capabilities required in defense beacon technology for location identification.

关键词： Compact Defense beacon technology Link budget SAR Time domain Wearable

Distribution of plant species along the elevation gradient in Pangi, a high altitude and remote eco-region in Western Himalaya, India

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Journal of Mountain Science 2024年第11期21卷 3739-3753页

作者： Anupam bhatt Amit CHAWLA Department of Botanical and Environmental Sciences Guru Nanak Dev UniversityAmritsar 143005India Environmental Technology Division CSIR-Institute of Himalayan Bioresource TechnologyPalampur 176061India

The Himalayan high-altitude eco-regions exhibit higher plant species diversity, and several environmental factors play a crucial role in shaping species distribution and diversity. The aim of the present study is to investigate the floristic composition, distribution of endemic, threatened and native taxa across the elevation zones and the effect of various environmental factors on species richness pattern along the elevation gradient in Pangi, a remote highaltitude region of Himalaya. We conducted extensive field surveys covering 31 localities and established elevational transects for assessing species distribution and the factors affecting thereof. Additionally, information on nativity, endemism, and IUCN red-list categories of threatened species were compiled from published and online resources. Data were analysed using regression model and Non-Metric MultiDimensional Scaling(NMDS). In the present study, we recorded a total of 771 plant species across the region. In regression model, the elevation and anthropogenic variables and their interaction showed significant negative effects on the species richness. Species richness was found to decrease with the increasing elevation, showing a humped shaped pattern, with maximum richness observed in the mid-elevations(2,400m to 3,300m above sea level). The pattern of distribution of native and non-native species along the elevation gradient showed opposite trends, and proportion of native species increased towards the higher elevations. Further, NMDS ordination suggests that zone-Ⅰ(2,100-2,500m asl) and zone-Ⅴ(4,001-4,500m asl) had highest differences in species composition, while zone-Ⅰ, zone-Ⅱ(2,501-3,000m asl), and zone-Ⅲ(3,001-3,500m asl) showed higher affinity with respect to their species composition. Thus, the present study revealed that remote and hitherto un-explored Pangi eco-region is rich in floristic diversity and provides pertinent information on the species distribution and composition, and various underlyi

关键词： Elevational gradient Floristic Himalaya IUCN Native Richness pattern

Ion Conduction in Superionic Glassy Electrolytes:An Overview

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Journal of Materials Science & Technology 2013年第3期29卷 193-208页

作者： Angesh Chandra Alok bhatt Archana Chandra Department of Applied Physics Shri Shankaracharya Institute of Prof.Manag.& Tech.Raipur 492015C.G.India Department of Applied Physics M.P Christian College of Engg.& Tech.Bhilai 490026C.G.India

The various theoretical and experimental models for ion conduction mechanism of fast ion conducting （FIC） glass electrolytes have been reported in the present review paper. Some characterization techniques of FIC glasses are presented. The experimental methods for determination of some ion transport parameters viz ionic conductivity （σ）, ionic mobility （μ）, mobile ion concentration （n）, ionic drift velocity （Vd）, ionic transference number （tion） and activation energies of FIC glasses are explained. The solid state battery fabrication by using some FIC glasses is also reported.

关键词： Ion conduction Glassy solid electrolyte Fast ion conducting (FIC) glass Superionic solid Relaxation phenomenon

Quantum Cryptography for Internet of Things Security

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Journal of Electronic Science and Technology 2019年第3期17卷 213-220页

作者： Alekha Parimal bhatt Anand Sharma the Department of Computer Science and Engineering Mody University of Science and Technology

Internet of things (IoT) is a developing technology with a lot of scope in the future. It can ease various different tasks for us. On one hand, IoT is useful for us, on the other hand, it has many serious security threats, like data breaches, side-channel attacks, and virus and data authentication. Classical cryptographic algorithms, like the Rivest-Shamir-Adleman (RSA) algorithm, work well under the classical computers. But the technology is slowly shifting towards quantum computing, which has immense processing power and is more than enough to break the current cryptographic algorithms easily. So it is required that we have to design quantum cryptographic algorithms to prevent our systems from security breaches even before quantum computers come in the market for commercial uses. IoT will also be one of the disciplines, which needs to be secured to prevent any malicious activities. In this paper, we review the common security threats in IoT and the presently available solutions with their drawbacks. Then quantum cryptography is introduced with some of its variations. And finally, the analysis has been carried out in terms of the pros and cons of implementing quantum cryptography for IoT security.

关键词： Internet of things quantum computing quantum cryptography security

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基于卷积神经网络的砌体墙震后破坏评估

基于卷积神经网络的砌体墙震后破坏评估

作者： NAV raj bhatt 哈尔滨工业大学

学位级别：硕士

建筑物震后损伤评估是地震灾害损失评估、震后恢复和重建工作的重要内容之一。建筑物震后损伤评估要现场找出结构损伤或破坏位置并对其进行分类统计和分析,它不仅提供了有关任何结构中损坏构件的数量和类别的重要信息,还帮助我们发现导... 详细信息

建筑物震后损伤评估是地震灾害损失评估、震后恢复和重建工作的重要内容之一。建筑物震后损伤评估要现场找出结构损伤或破坏位置并对其进行分类统计和分析,它不仅提供了有关任何结构中损坏构件的数量和类别的重要信息,还帮助我们发现导致损坏的可能的结构缺陷。传统的损伤评估技术包括由工程师或专家对每个受损结构进行目视检查,这种检查方式不仅危险、耗时,而且需要大量熟练人力。基于计算机视觉的结构损伤识别技术已经成为结构监测和检测领域中一个极为先进和创新的研究方向,并逐渐受到了土木工程研究人员的关注。计算机视觉技术的主要优点是非接触、远距离、高精度、更大的覆盖范围以及可通过移动设备和无人机进行识别。本论文主要研究更易受地震影响的砌体结构的损伤评估。首先,本论文对卷积神经网络（CNN）理论进行了回顾和讨论,分析了迁移学习,超参数调试,卷积可视化等算法。同时,对砌体结构墙体在地震中可能发生的多类损伤（如对角裂缝、拐角分离、分层和平面外破坏等）进行了分类。其次,本文提出了一种通过在Image Net数据集上预先训练的VGG16模型上应用微调和转移学习而构建的深度CNN模型架构。梯度加权类激活映射（GradCAM）技术用于解决损坏的定位问题。最后,将本论文的方法应用于砌体结构墙体的损伤评估,对具有不同网络参数的多个模型在训练、测试和验证集结果进行了对比分析,并给出了基于GradCAM注意力机制的损伤定位图。结果表明,所提出模型的整体性能在表征和定位损伤方面表现出良好的一致性和鲁棒性。论文的结果证明了该模型在实际应用中的可行性。

关键词：计算机视觉地震损伤评估砌体结构卷积神经网络梯度加权类激活映射

Immunotherapy for recurrent hepatocellular carcinoma

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World Journal of Gastroenterology 2023年第15期29卷 2261-2271页

作者： Ahan bhatt Jennifer Wu Division of Hematology and Oncology Perlmutter Cancer Center of NYU Langone HealthNYU School of MedicineNew YorkNY 10016United States

Hepatocellular carcinoma(HCC)is presented frequently in late stages that are not amenable for curative *** for patients who can undergo resection for curative treatment of HCC,up to 50%*** patients who were not exposed to systemic therapy prior to recurrence,recurrence frequently cannot be subjected to curative therapy or local *** patients have several options of immunotherapy(IO).This includes programmed cell death protein 1(PD-1)and cytotoxic T-lymphocyte associated protein 4 treatment,combination of PD-1 and vascular endothelial growth factor inhibitor or single agent PD-1 therapy when all other options are deemed *** are also investigational therapies in this area that explore either PD-1 and tyrosine kinase inhibitors or a novel agent in addition to PD-1 with vascular endothelial growth factor *** minireview explored IO options for patients with recurrent HCC who were not exposed to systemic therapy at the initial *** also discussed potential IO options for patients with recurrent HCC who were exposed to first-line therapy with curative intent at diagnosis.

关键词： Liver neoplasms Immune checkpoint blockade Combination drug therapy PD-1-PD-L1 blockade CTLA-4 inhibitor

Analysis of silicon-based integrated photovoltaic–electrochemical hydrogen generation system under varying temperature and illumination

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Journal of Energy Chemistry 2017年第1期26卷 72-80页

作者： Vishwa bhatt Brijesh Tripathi Pankaj Yadav Manoj Kumar Department of Solar Energy School of TechnologyPandit Deendayal Petroleum UniversityGandhinagar 382007India Department of Science School of TechnologyPandit Deendayal Petroleum UniversityGandhinagar 382007India Department of Electrical Engineering Incheon National UniversityIncheon 406772Republic of Korea

Last decade witnessed tremendous research and development in the area of photo-electrolytic hydrogen generation using chemically stable nanostructured photo-cathode/anode materials. Due to intimately coupled charge separation and photo-catalytic processes, it is very difficult to optimize individual components of such system leading to a very low demonstrated solar-to-fuel efficiency (SFE) of less than 1%. Recently there has been growing interest in an integrated photovoltaic–electrochemical (PV–EC) system based on GaAs solar cells with the demonstrated SFE of 24.5% under concentrated illumination condition. But a high cost of GaAs based solar cells and recent price drop of poly-crystalline silicon (pc-Si) solar cells motivated researchers to explore silicon based integrated PV–EC system. In this paper a theoretical framework is introduced to model silicon-based integrated PV–EC device. The theoretical framework is used to analyze the coupling and kinetic losses of a silicon solar cell based integrated PV–EC water splitting system under varying temperature and illumination. The kinetic loss occurs in the range of 19.1%–27.9% and coupling loss takes place in the range of 5.45%–6.74% with respect to varying illumination in the range of 20–100 mW/cm2. Similarly, the effect of varying temperature has severe impact on the performance of the system, wherein the coupling loss occurs in the range of 0.84%–21.51% for the temperature variation from 25 to 50 °C. © 2016 Science Press

关键词： Electrochemical cells Electrochemical impedance spectroscopy Gallium arsenide Hydrogen production Nanostructured materials Polysilicon Semiconducting gallium Silicon Silicon solar cells Solar power generation