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A Novel-based Swin Transfer Based Diagnosis of COVID-19 Patients

Intelligent Automation & Soft Computing 2023年第1期35卷 163-180页

作者： Yassir Edrees Almalki Maryam Zaffar Muhammad Irfan Mohammad Ali Abbas Maida khalid K.S.Quraishi Tariq Ali Fahad Alshehri Sharifa khalid alduraibi Abdullah AAsiri Mohammad Abd Alkhalik Basha alaa alduraibi M.K.Saeed Saifur Rahman Department of Medicine Division of RadiologyMedical CollegeNajran UniversityNajran11001Saudi Arabia Department of Computer Science and Information Technology Ibadat International UniversityIslamabad44000Pakistan Electrical Engineering Department College of EngineeringNajran UniversityNajran11001Saudi Arabia Department of Chemical Engineering PIEAS UniversityIslamabad44000Pakistan Department of Computer Science COMSATS University Islamabad(CUI)Sahiwal Campus57000Pakistan Department of Radiology College of MedicineQassim UniversityBuraydah52571Saudi Arabia Radiological Sciences Department College of Applied Medical SciencesNajran UniversityNajran11001Saudi Arabia Faculty of Human Medicine Zagazig University44631Egypt

The numbers of cases and deaths due to the COVID-19 virus have increased daily all around the *** X-ray is considered very useful and less time-consuming for monitoring COVID *** doubt,X-ray is considered as a quick screening method,but due to variations in features of images which are of X-rays category with Corona confirmed cases,the domain expert is *** address this issue,we proposed to utilize deep learning *** this study,the dataset of COVID-19,lung opacity,viral pneumonia,and lastly healthy patients’images of category X-rays are utilized to evaluate the performance of the Swin transformer for predicting the COVID-19 patients *** performance of the Swin transformer is compared with the other seven deep learning models,including ResNet50,DenseNet121,InceptionV3,EfficientNetB2,VGG19,ViT,CaIT,Swim transformer provides 98%recall and 96%accuracy on corona affected images of the X-ray *** proposed approach is also compared with state-of-the-art techniques for COVID-19 diagnosis,and proposed technique is found better in terms of *** system could support clin-icians in screening patients for COVID-19,thus facilitating instantaneous treatment for better effects on the health of COVID-19 ***,this paper can contribute to saving humanity from the adverse effects of trials that the Corona virus might bring by performing an accurate diagnosis over Corona-affected patients.

关键词： Biomedical systems chest X-ray images CNN COVID-19 swin transformer image processing

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Silicon quantum dots-based fluorescent sensor for the detection of cobalt with high sensitivity and selectivity

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Chinese Chemical Letters 2024年第1期35卷 451-455页

作者： Ebtihaj Mohammed Sullam khalid Mohammed Adam Juanjuan Liu Hongli Chen Jianxi Xiao State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000China Department of Chemistry Faculty of EducationUniversity of KordofanEl Obeid 51111Sudan

Fluorescent silicon quantum dots(Si QDs)were hydrothermally synthesized from a mixture of 3(2-aminoethylamino)propyl(dimethoxymethylsilane)(AEAPDMMS)and poly(vinylpyrrolidine)(PVP).The resulting Si QDs exhibited good water solubility and high *** the optimized conditions,the probe revealed an excellent linear fluorescence quenching effect on Co2+ranging from 1μmol/L to 120μmol/L with a limit of detection of 0.37μmol/L(based on 3 s/k).The quenching mechanism was studied,showing that static quenching(SQE)causes the main ***,the test paper based on Si QDs was prepared,which is cost-effective,high sensitivity,good selectivity,easy to use and show excellent anti-interference *** method was applied to analyze the content of Co2+in environmental water samples with satisfying results.

关键词： Silicon quantum dots Fluorescence Poly(vinylpyrrolidine) Test paper Cobalt detection

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Endoscopic push through tragal cartilage tympanoplasty: A 10-year retrospective review of our technique and outcomes

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World Journal of Otorhinolaryngology 2024年第2期11卷 18-24页

作者： K M Abidur Rahman khalid Majeed Emma Finnegan Ivan Keogh Ear Noseand Throat/Head and Neck SurgeryGalway University HospitalGalway H91 YR71Ireland Academic Department of Otorhinolaryngology and Head and Neck Surgery University of GalwayGalway H91 TK33Ireland

BACKGROUND Endoscopic ear surgery(EES)provides a magnified,high-definition view of the otological surgical *** allows otologists to avoid surgical incisions and associated postoperative *** is an ideal technique for the perfor-mance and teaching of *** To examine the efficacy of total Endoscopic Push Through Tragal Cartilage Tympanoplasty(EPTTCT),at our institution over a 10-year *** A retrospective analysis of 168 cases of EPTTCT for closure of small to medium tympanic membrane perforations from 2013-2023 was *** sex,age range(pediatric vs adult),etiology of injury,success rate,complications,and postoperative hearing status were *** Graft uptake results indicated success in 94%of patients,with less than a 2%complication *** pure tone audiometry demonstrated hearing status improvement in 69%of *** EPTTCT has been shown to be effective in tympanic membrane perforation closures with minimal *** study further demonstrates the efficacy and safety of these procedures in a single-center review.

关键词： Total endoscopic ear surgery Otology Tympanoplasty Hearing Perforation Tragal cartilage graft

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大气环境监测卫星星载IPDA激光雷达的大气二氧化碳柱浓度反演及多源数据对比验证

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光学学报 2024年第12期44卷 174-186页

作者：赖锴婕卜令兵王勤毛志华 khalid Muhammad Burhan 樊纯璨刘继桥陈卫标赵少华南京信息工程大学大气物理学院江苏南京210044 天津气象雷达研究试验中心天津300061 中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室上海201800 生态环境部卫星环境应用中心北京100094

基于星载积分路径差分吸收(IPDA)激光雷达探测数据对全球二氧化碳柱浓度(XCO_(2))进行反演并利用全球CO_(2)柱浓度观测网(TCCON)、轨道碳观测者2号(OCO-2)卫星以及碳追踪器三者的CO_(2)数据产品验证了反演结果的准确性。结果表明:IPDA... 详细信息

基于星载积分路径差分吸收(IPDA)激光雷达探测数据对全球二氧化碳柱浓度(XCO_(2))进行反演并利用全球CO_(2)柱浓度观测网(TCCON)、轨道碳观测者2号(OCO-2)卫星以及碳追踪器三者的CO_(2)数据产品验证了反演结果的准确性。结果表明:IPDA激光雷达的反演结果与TCCON的观测结果一致性较好,两者的平均偏差为0.3×10^(-6),决定系数(R2)为0.952,均方根误差(RMSE)为0.584×10^(-6)。与OCO-2和CT的XCO_(2)数据产品的对比结果也显示出IPDA激光雷达反演结果与TCCON数据产品的吻合程度均高于OCO-2卫星与碳追踪器,进一步表明IPDA激光雷达能够获得更准确的全球XCO_(2)观测数据。IPDA激光雷达对于不同地表类型上空的XCO_(2)探测精度存在一定差异,在空间分辨率为50 km(陆地)和100 km(海洋)下,其探测精度主要分布在(0.80~0.82)×10^(-6)与(0.76~0.78)×10^(-6),均满足1×10^(-6)的探测精度要求。星载IPDA激光雷达的全天时、高精度探测技术将在今后全球碳源碳汇研究中发挥重要作用。

关键词：大气二氧化碳大气环境监测卫星星载激光雷达积分路径差分吸收验证

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联合内容和风格表示的无监督字体生成网络

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计算机辅助设计与图形学学报 2024年

作者：刘宇丁阳 Fatimahbinti khalid 李昕 Mas Rinabinti Mustaffa Azreenbin Azman Faculty of Computer Science and Information Technology， University Putra Malaysia 大连民族大学计算机科学与工程学院大连科技学院信息科学与技术学院

生成包含大量字体的中文字体是具有挑战性的任务，现有方法主要依赖于大量的配对数据进行监督学习，然而收集这些数据是劳动密集型的工作，且很难扩展到新风格字体. 为辅助字体设计师提高计算机汉字字库开发效率，提出分离字体内容... 详细信息

生成包含大量字体的中文字体是具有挑战性的任务，现有方法主要依赖于大量的配对数据进行监督学习，然而收集这些数据是劳动密集型的工作，且很难扩展到新风格字体. 为辅助字体设计师提高计算机汉字字库开发效率，提出分离字体内容和风格表示的无监督字体生成网络. 首先，将风格和内容表示在同一域中建立密集的语义对应，指导解码器产生高质量的输出; 然后，在跳跃连接中引入可变形卷积，通过学习偏移量和通道之间的相互依赖性，使网络更加注字体的结构特征; 最后，设计多尺度风格判别器，在不同尺度上评估生成图像的风格一致性. 在公开的数据集上展示并分析FUNIT、MX-Font和DG-Font等五种字体生成方法的生成效果，实验结果表明在L1、RMSE等评估指标和用户研究实验中均优于对比的方法.

关键词：汉字字体生成可变形卷积无监督学习跨域语义对应

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Challenges in Diagnosing and Managing Dieulafoy’s Lesions: A Case Report Highlighting the Importance of Clinical Suspicion and Multidisciplinary Approach in Obscure Gastrointestinal Bleeding

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Open Journal of Gastroenterology 2024年第3期14卷 80-86页

作者： Feruza Abraamyan Neeladri Misra Kenneth Tran khalid Mahmood Benjamin Coombs Shilpa Lingala Sutter Roseville Medical Center Roseville USA

Upper gastrointestinal bleeding remains a significant cause of hospital admissions. Even though the incidence of peptic ulcer disease and gastritis is decreasing, the incidence rates in neoplasm, Dieulafoy’s lesions, angiodysplasia, and esophagitis are trending up, which necessities physicians to be aware of those pathologies and their specifics. Here, we represent a case of a 62-year-old male on dual antiplatelet therapy who was transferred to our hospital due to severe melena with suspicion of upper gastrointestinal bleeding. Due to hemodynamic instability, the patient was intubated and started on vasopressors. However, several repeated EGDs and CTs of the abdomen with GI bleeding protocol did not reveal the location of active bleeding to stop it. At the same time, clinically, the patient was hemodynamically unstable with continued melena. On the last EGD, a small area of concern resembling gastric varix was clipped for identification purposes, and the patient underwent a selective angiogram with further diagnosis of Dieulafoy’s lesion, which was successfully embolized. Our case demonstrates that Dieulafoy’s lesions can present as severe life-threatening hemorrhage, hard to diagnose with traditional methods such as EGD or CTs, in which case it is recommended to proceed with an angiogram sooner rather than later for further diagnosis and treatment if needed.

关键词： Upper Gastrointestinal Bleeding Dieulafoy’s Lesion Angiodysplasia Melena Hematochezia EGD Angiogram Embolization

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中巴经济走廊洪扎段潜在滑坡SBAS-InSAR早期识别及发育特征分析

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遥感学报 2024年第4期28卷 885-899页

作者：苏晓军张毅孟兴民 Rehman Mohib Ur khalid Zainab 赵富萌岳东霞郭富赟周自强兰州大学资源环境学院兰州730000 兰州大学地质科学与矿产资源学院兰州730000 甘肃省环境地质与灾害防治技术创新中心兰州730000 兰州大学西部环境教育部重点实验室兰州730000 甘肃省地质环境监测院兰州730050 甘肃省科学院地质自然灾害防治研究所兰州730000

中巴经济走廊巴基斯坦境内洪扎河谷(Hunza Valley)段地形高差巨大、地质环境复杂,滑坡灾害多发,对河谷内村镇威胁极大,也严重制约中巴经济走廊安全建设与运行。为了加深对Hunza河谷滑坡灾害的认识,亟待进行滑坡识别编目和发育特征研究... 详细信息

中巴经济走廊巴基斯坦境内洪扎河谷(Hunza Valley)段地形高差巨大、地质环境复杂,滑坡灾害多发,对河谷内村镇威胁极大,也严重制约中巴经济走廊安全建设与运行。为了加深对Hunza河谷滑坡灾害的认识,亟待进行滑坡识别编目和发育特征研究。本研究基于升、降轨获取的87景哨兵一号(Sentinel-1)数据,利用SBAS-InSAR技术获取了洪扎河谷地表形变,计算了地表斜坡向形变速率。并综合利用光学遥感影像解译和野外实地调查验证,成功识别了洪扎河谷53处潜在滑坡,并讨论了滑坡识别效果,对Ghulmet和Humarri两个典型大型滑坡监测形变、影像解译和验证特征进行了分析。在此基础上,选取11个地形地质环境因素作为影响滑坡发育的因子,分析了滑坡分布发育特征。结果表明,升轨和降轨数据监测到研究区内斜坡向最大形变速率分别为−311 mm/a和−490 mm/a,洪扎河谷区不稳定形变阈值为−20 mm/a。大型滑坡受河流侵蚀作用,形变剧烈,次级滑坡发育。识别的潜在滑坡主要集中在河流两岸、公路上下边坡;潜在滑坡主要分布在风化堆积层以及千枚岩、板岩等变质岩区;高差200—1000 m、坡度30°—40°和坡向南、南西向为滑坡发育的优势地形条件;斜坡地表裸露、植被稀疏地段(NDVI<0.2)物源充足,滑坡较为发育。研究结果可用于巴基斯坦洪扎河谷防灾减灾工作,保障中巴经济走廊畅通运营,为具有毁路与堵江风险的滑坡重点监测和评价研究提供科学参考和数据支持。

关键词：中巴经济走廊洪扎河谷滑坡 SBAS-InSAR 地表形变早期识别发育特征

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Determination of Latent Heats of Vaporization and Fusion

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Advances in Chemical Engineering and Science 2024年第3期14卷 113-124页

作者： Lahbib Abbas Lahcen Bih khalid Yamni Abderrahim Elyahyaouy Abdelmalik El Attaoui Zahra Ramzi Chemistry Department Faculty of Science and Technology Moulay Ismail University Meknes Er-Rachidia Morocco Engineering Sciences and Professions Laboratory National School of Arts and Crafts Moulay Ismail University Meknes Meknes Morocco Materials Membranes and Nanotechnology Chemistry Department Faculty of Sciences Moulay Ismail University Meknes Zitoune Mekns Morocco Physics Department Faculty of Sciences Ibn Tofail University Kenitra Morocco Laboratory of Molecular Chemistry Materials and Environment (LCM2E) Multidisciplinary Faculty of Nador Mohamed 1st University Oujda Nador Morocco Laboratory of SCiMATOP Chemistry Department Faculty of Sciences Semlalia Cadi Ayyad University Marrakech Morocco

Water is the most abundant liquid on the surface of the earth. It is a liquid whose properties are quite surprising, both as a pure liquid and as a solvent. Water is a very cohesive liquid: its melting and vaporization temperatures are very high for a liquid that is neither ionic nor metallic, and whose molar mass is low. Thus, water remains liquid at atmospheric pressure up to 100C while similar molecules such as H2S, H2Se, H2Te for example would give a vaporization temperature close to 80C. This cohesion is in fact ensured by hydrogen bonds between water molecules. This type of bonds between neighboring molecules, hydrogen bonds, is quite often found in chemistry [1] [2]. Any change in the state of aggregation of a substance occurs with the absorption or release of a certain amount of latent heat of transformation. Latent heat of fusion, vaporization or sublimation is the ratio of the energy supplied as heat to the mass of the substance that is melted, vaporized or sublimated. As a result of the reversibility of the processes, the fusion heat is equal to the heat released in the reverse process: crystallization and solidification heat. And likewise the heat of vaporization is equal to the heat of condensation. This equality of heat is often used to determine experimentally either of these quantities. There are two main measurement methods: 1) Direct measurement using the calorimeter, 2) Indirect measure based on the use of the VantHoff relationship. The objective of this work is to measure the latent heat of water vaporization and verify the compatibility of the experimental values with the values given by the tables using the indirect method.

关键词： Latent Heat of Vaporization Latent Heat of Fusion Calorimetry Relationship of Vant’Hoff

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Driving forces of continuing evolution of rotaviruses

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World Journal of Virology 2024年第2期13卷 58-70页

作者： Mohamad Saifudin Hakim Faris Muhammad Gazali Suci Ardini Widyaningsih Mohammad khalid Parvez Postgraduate School of Molecular Medicine Erasmus MC-University Medical CenterRotterdam 3015GDNetherlands Viral Infection Working Group International Society of Antimicrobial ChemotherapyLondon EC4R 9ANUnited Kingdom Master Program in Biotechnology Postgraduate SchoolUniversitas Gadjah MadaYogyakarta55281Indonesia Master of Medical Sciences in Clinical Investigation Harvard Medical SchoolBostonMA 02115United States Department of Pharmacognosy College of PharmacyKing Saud UniversityRiyadh11451Saudi Arabia

Rotaviruses are non-enveloped double-stranded RNA virus that causes acute diarrheal diseases in children(<5 years).More than 90%of the global rotavirus infection in humans was caused by Rotavirus group *** infection has caused more than 200000 deaths annually and predominantly occurs in the low-income *** evolution is indicated by the strain dynamics or the emergence of the unprecedented *** major factors that drive the rotavirus evolution include the genetic shift that is caused by the reassortment mechanism,either in the intra-or the ***,other factors are also known to have an impact on rotavirus *** review discusses the structure and types,epidemiology,and evolution of *** article also reviews other supplemental factors of rotavirus evolution,such as genetic reassortment,mutation rate,glycan specificity,vaccine introduction,the host immune respo-nses,and antiviral drugs.

关键词： Rotavirus Epidemiology Evolution Reassortment Vaccine

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Burden of routine orthopedic implant removal a single center retrospective study

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World Journal of Orthopedics 2024年第2期15卷 139-146页

作者： Ammar K AlOmran Nader Alosaimi Ahmed A Alshaikhi Omar M Bakhurji khalid J Alzahrani Basil Ziyad Salloot Tamim Omar Alabduladhem Ahmed I AlMulhim Arwa Alumran Department of Orthopedic College of MedicineImam Abdulrahman Bin Faisal UniversityDammam 31441Saudi Arabia Health Information Management and Technology Department Imam Abdulrahman Bin Faisal UniversityDammam 31441Saudi Arabia

BACKGROUND Open reduction and internal fixation represent prevalent orthopedic procedures,sparking ongoing discourse over whether to retain or remove asymptomatic *** consensus on this matter is paramount for orthopedic *** study aims to quantify the impact of routine implant removal on patients and healthcare facilities.A retrospective analysis of implant removal cases from 2016 to 2022 at King Fahad Hospital of the University(KFHU)was conducted and subjected to statistical *** these cases,44%necessitated hospitalization exceeding one day,while 56%required only a single *** exhibited a 55%need for extended hospital stays,contrasting with 22.8%among the pediatric *** complication rate was 6%,with all patients experiencing at least one ***,34.1%required sick leave and 4.8%exceeded 14 *** anesthesia was predominant(88%).Routine implant removal introduces unwarranted complications,particularly in adults,potentially prolonging *** procedure strains hospital resources,tying up the operating room that could otherwise accommodate critical *** defined institutional guidelines are imperative to regulate this *** To measure the burden of routine implant removal on the patients and *** This is a retrospective analysis study of 167 routine implant removal cases treated at KFHU,a tertiary hospital in Saudi *** were collected in the orthopedic department at KFHU from February 2016 to August 2022,which includes routine asymptomatic implant removal cases across all age *** indications such as infection,pain,implant failure,malunion,nonunion,restricted range of motion,and prominent hardware were *** who had external fixators removed or joints replaced were also *** Between February 2016 and August 2022,360 implants were retrieved;however,only 167 of those who met the inclusion criteria were included in this

关键词： Implant removal Healed fracture Orthopedic implant Complications Healthcare system

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