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White Cord Syndrome: The Terrible Nightmare

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Open Journal of Modern Neurosurgery 2020年第2期10卷 275-283页

作者： hussein Fathalla Omar Ragab ahmed Hamdy Ashry Division of Neurosurgery Cairo University Hospitals Cairo Egypt Division of Neurosurgery Beni Suef University Beni Suef Egypt

Introduction: Reperfusion injury of spinal cord “white cord syndrome” refers to acute neurological deterioration after decompressive spinal surgery without any reported intraoperative events. The postoperative appearance of diffuse hyperintense intramedullary areas in T2-weighted MRI is characteristic without any other pathological or compressive signs. The etiology may be due to sudden expansion of the cord after reperfusion of chronically ischemic areas leading to disruption of blood-spinal cord barrier. The incidence and risk factors of the syndrome are not well documented in the literature. Methods: This is a retrospective case series that included 150 patients with cervical spondylotic myelopathy who had undergone decompression surgery in our institution from 2017 to 2019. Patients’ demographics, clinical, imaging characteristics, intraoperative and postoperative data were collected and analysed. Results: In this study, we documented 7 cases of this syndrome. We found that advanced age, chronic hypertension, pre-existing cord signal in MRI and long history of symptoms may be risk factors for this syndrome. Conclusion: Early diagnosis and prompt treatment of this syndrome with steroids and physical therapy may lead to initial improvement. Awareness of the surgeons about this syndrome should be increased and identifying its risk factors is very important for patients counseling.

关键词： White Cord Syndrome Spondylotic Cervical Myelopathy Reperfusion Injury

Double-antibody-based nano-biosensing systemfor the onsite monitoring of SARS-CoV-2 variants

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Microsystems & Nanoengineering 2023年第4期9卷 247-262页

作者： Heba A.hussein ahmed Kandeil Mokhtar Gomaa Rabeay Y.A.Hassan Virology Department Animal Health Research Institute(AHRI)Agricultural Research Center(ARC)Giza 12619Egypt Biosensors Research Laboratory Zewail City of Science and Technology6th October CityGiza 12578Egypt Center of Scientific Excellence for Influenza Viruses Environmental Research DivisionNational Research CentreGiza 12622Egypt Nanoscience Program University of Science and Technology(UST)Zewail City of Science and TechnologyGiza 12578Egypt

The fast and reliable diagnosis of COVID-19 is the foremost priority for promoting public health ***, double-antibody-based immunobiosensor chips were designed, constructed, and exploited for clinicaldiagnosis. Gold nanoparticles/tungsten oxide/carbon nanotubes (AuNPs/WO3/CNTs) were used as the active workingsensor surface to support the chemical immobilization of a mixture of SARS-CoV-2 antibodies (anti-RBD-S and anti-RBD-S-anti-Llama monoclonal antibodies). The morphology and chemical functionalization of the fabricateddisposable immunochips was characterized using scanning electron microscopy (SEM), Fourier transform infrared(FTIR) spectroscopy, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). After full assayoptimization, the immunobiosensor showed a high sensitivity to detect SARS-CoV-2-S protein with limits of detectionand quantification of 1.8 and 5.6 pg/mL, respectively. On the other hand, for the SARS-CoV-2 whole virus particleanalysis, the detection and quantification limits were determined to be 5.7 and 17 pg/mL, respectively. The biosensorshowed a highly selective response toward SARS-CoV-2, even in the presence of influenza, nontargeting humancoronaviruses, and Middle East respiratory syndrome coronavirus (MERS-CoV). The immunochips exhibited distinctresponses toward the variants of concern: B.1>C.36.3>Omicron> Delta> Alpha coronavirus variants. For biosensorvalidation, twenty-nine clinical specimens were analyzed, and the impedimetric responses were positively detected fortwo Delta samples, eighteen Omicron samples, and six B.1-type samples in addition to three negative ***, the immunobiosensor was fabricated in the form of ready-to-use chips capable of sensitive detection ofvirus variants, especially variants of concern (VOC) and interest, in a specimen within 15 min. The chips providedinstantaneous detection with the direct application of clinical samples and are considered a point-of-care

关键词： system limits optimization

Graded levels of sugar syrup in broiler rations and its effect on growth performance and blood biochemical parameters

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Animal Nutrition 2016年第3期2卷 180-185页

作者： ahmed S.hussein Jamal Al Ghurair P.George Kunju John Hosam M.Habib Mohsin Sulaiman College of Food and Agriculture United Arab Emirates University Al-Khaleej Sugar CO (L.L.C.)

Dietary energy for chickens normally includes cereal grains and fat. This innovative study investigated the effect of replacing part of the corn and fat in broiler chicken rations with graded levels of sugar syrup on growth performance and biochemical parameters. Experimental treatments consisted of feeding a corn-soy basal diet alone, or with graded levels of sugar syrup in increments of 5%, 10% and 15%. All starter diets were isonitrogenous and isocaloric. Body weight gain and efficiency of feed utilization of chicks fed the control diet alone were not significantly(P < 0.05) different from chicks fed diets supplemented with either 5% or 15% sugar syrup. Supplementation of sugar syrup to broiler diets had no significant effect on blood glucose, creatinine, total protein, or liver enzymes. Adding 5% sugar syrup to broiler rations significantly decreased blood cholesterol and triglycerides in chickens fed the sugar syrup diet compared with birds fed the control diet. In conclusion, the results shows sugar syrup can be used in poultry ration to replace part of the corn as a source of energy. These results allowed the authors to recommend the safe usage of sugar syrup in broiler rations.

关键词： Sugar syrup Broiler rations Growth Blood cholesterol

SmartPainter:基于色彩扩散的灰度图像着色器(英文)

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计算机研究与发展 2011年第S3期48卷 462-466页

作者： ahmed A. hussein 杨晓春东北大学信息科学与工程学院沈阳110004

利用用户指定的颜色为灰度图着色在电影制作、图片处理等领域具有广泛地应用.灰度着色需要考虑与用户的互动,往往需要场景等先验知识.主要问题是涉及到大量的像素计算,成本高、耗时巨大.介绍一个新颖的快速着色器,根据用户指定的颜色,... 详细信息

利用用户指定的颜色为灰度图着色在电影制作、图片处理等领域具有广泛地应用.灰度着色需要考虑与用户的互动,往往需要场景等先验知识.主要问题是涉及到大量的像素计算,成本高、耗时巨大.介绍一个新颖的快速着色器,根据用户指定的颜色,可以完成色彩的自动扩散.可以自动寻找扩散颜色的边界,保证着色的快速和准确.SmartPainter为用户提供简单易行的操作平台,只需要用户提供对所在区域的基本颜色即可达到很好的着色效果.

关键词：着色颜色空间图像处理色彩扩散

The Effect of Unplanned Pregnancy among Women Collage in Wadajir Distract Moqdisho Somalia

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Open Journal of Nursing 2021年第1期11卷 42-55页

作者： Shukri Abdulkadir ahmed Mohamed Hassan Mohamed ahmed Mohamud hussein Mariam Mohamed Nur Somali International University Mogadishu Somali

Unplanned pregnancy is a pregnancy that is either mistimed or unwanted at the time of conception. It is a core concept in understanding the fertility of populations and the unmet need for contraception. Unintended pregnancy is associated with an increased risk of morbidity for women, and with health behaviors during pregnancy with adverse effects. And the aim of this study is to establish the level of effect of the unplanned pregnancy in women college in Wadajir district. This study used a cross-sectional study design. And the aim of this study is to establish the level of effect of the unplanned pregnancy on women college in Wadajir district. This study was being used cross sectional study design. This research had undertaken Wadajir district in Banadir region Mogadishu-Somalia. The sample size was 60 participating in the data collection phase from 1-30 Jun 2020. This study used primary data. This was collected from respondents in the area of study. Data was collected using a pre-cod structured questionnaire for the survey. Data showed that: 39 (65%) of the respondents answered yes that lack of education caused most unplanned pregnancy, 40 (66%) said that low-income countries are the risk factor of unplanned pregnancy, 47 (78%) of the respondents answered family planning is most common preventive for unplanned pregnancy, and 0 (67%) said that school dropout is the most compilation of unplanned pregnancy. Based on the findings of this research, the knowledge of the majority of respondents about unplanned pregnancy among women college replied yes, and they also replied that the most cause of unplanned pregnancy among women college is lack of education.

关键词： Unplanned Pregnant Women Wadajir District

High-Bandwidth,Low-Power CMOS Transistor Based CAB for Field Programmable Analog Array

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Computers, Materials & Continua 2023年第3期74卷 5885-5900页

作者： Ameen Bin Obadi Alaa El-Din hussein Samir Salem Al-Bawri Kabir Hossain Abdullah Abdulhameed Muzammil Jusoh Thennarasan Sabapathy ahmed Jamal Abdullah Al-Gburi Mahmoud A.Albreem Advanced Communication Engineering(ACE) Centre of ExcellenceUniversiti Malaysia Perlis(UniMAP)Faculty of Electronic Engineering TechnologyKangar01000Malaysia Electrical Engineering King Fahd University of Petroleum and MineralsDhahranEastern31261Saudi Arabia Space Science Centre Climate Change InstituteUniversiti Kebangsaan MalaysiaBangi43600Malaysia Department of Electronics&Communication Engineering Faculty of Engineering&PetroleumHadhramout UniversityAl-MukallaHadhramout50512Yemen Faculty of Engineering Norwegian University of Science and Technology(NTNU)GjovikN-2815Norway Faculty of Electronic Engineering Technology Universiti Malaysia Perlis(UniMAP)Kampus Alam UniMAP Pauh PutraArau02600Malaysia Department of General Educational Development Faculty of Science and Information Technology(FSIT)Daffodil International UniversityDhaka1207Bangladesh Department of Electronics and Computer Engineering(FKEKK) Center for Telecommunication Research and Innovation(CeTRI)Universiti Teknikal Malaysia Melaka(UTeM)Durian Tungal76100Malaysia Department of Electrical Engineering University of SharjahSharjah27272United Arab Emirates

This article presents an integrated current mode configurable analog block(CAB)system for field-programmable analog array(FPAA).The proposed architecture is based on the complementary metal-oxide semiconductor(CMOS)transistor level design where MOSFET transistors operating in the saturation region are *** proposed CAB architecture is designed to implement six of thewidely used current mode operations in analog processing systems:addition,subtraction,integration,multiplication,division,and pass *** functionality of the proposed CAB is demonstrated through these six operations,where each operation is chosen based on the user’s selection in the CAB interface *** architecture of the CAB system proposes an optimized way of designing and integrating only three functional cells with the interface circuitry to achieve the six ***,optimized programming and digital tuning circuitry are implemented in the architecture to control and interface with the functional ***,these designed programming and tuning circuitries play an essential role in optimizing the performance of the proposed *** of the proposed CMOS Transistor Based CAB system is carried out using Tanner EDA Tools in 0.35μm standard CMOS *** design uses a±1.5 V power supply and results in maximum 3 dB bandwidth of 34.9 MHz and an approximate size of 0.0537 *** demonstrates the advantages of the design over the current state-of-the-art designs presented for comparison in this ***,the proposed design has a clear aspect of simplicity,low power consumption,and high bandwidth operation,which makes it a suitable candidate for mobile telecommunications applications.

关键词： CMOS field programmable analog array configurable analog block current mode circuit

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基于属性权重的实体解析技术

计算机研究与发展 2013年第S1期50卷 281-289页

作者：甄灵敏杨晓春王斌 ahmed A hussein 东北大学信息科学与工程学院沈阳110819

实体解析是将在同一个数据源或者不同数据源中,指向现实世界同一实体的元组识别出来并合并的过程.如何高效而准确地将指向同一实体的记录识别出来一直是研究人员不懈追求的目标.在基于规则的匹配算法中,大多数算法是将所有的属性都作为... 详细信息

实体解析是将在同一个数据源或者不同数据源中,指向现实世界同一实体的元组识别出来并合并的过程.如何高效而准确地将指向同一实体的记录识别出来一直是研究人员不懈追求的目标.在基于规则的匹配算法中,大多数算法是将所有的属性都作为匹配属性进行计算,并且各个属性的权重都是一样的,然而这样不能充分体现关键属性的重要性.主要针对关系数据库数据源中实体解析准确性的问题,采用信息增益的方法和概率统计的方法计算数据属性的权重,用来代表该属性在记录中的重要性,达到提高实体解析准确度的目的.并且在此基础上采用top-k算法,选择出最佳分类属性集合,减少匹配属性的个数,从而加快了实体解析的速度.

关键词：实体解析属性权重信息增益实体识别 top-k

Microbial Analysis of Drinking Water from Randomly Selected Boreholes and Shallow Wells around Hargeisa, Somaliland

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Advances in Microbiology 2022年第1期12卷 1-9页

作者： Mohamud ahmed Farah Essam Abdulmuhsin Afifi Nadira Harir Omar ahmed hussein Essa Department of Microbiology Faculty of Medical Laboratory Science Haldoor Medical University Hargeisa Somaliland Hargeisa Water Quality Control Laboratory Hargeisa Water Agency Hargeisa Somaliland Department of Health Science Faculty of Medicine and Health Science Abaarso Tech University Hargeisa Somaliland

Background: Shallow wells and boreholes are vital sources of potable water in Hargeisa. This water can be polluted by runoff, in particular during the rainy season, causing outbreaks of waterborne infections. Objectives: This research aimed at evaluating the microbial quality of shallow wells and boreholes water around Hargeisa, Somaliland. Methods: The total coliform and Escherichia coli count were done by using the membrane filtration method. Overall, 100 ml of each water sample was filtered via a 0.45 μm membrane filter, and then the filters were put on m-Endo agar plates that were incubated at 37°C for 24 to 48 hours. Results: The mean value of total coliform counts for the boreholes and shallow wells ranged from 1.288 × 103 to 8.8 × 103 CFU/100ml, while the mean value of total E. coli counts also ranged from 3.5 × 102 to 4.429 × 103 CFU/100ml. Results from this study have demonstrated that all water sources (Arabsiyo, Dararweyne, Darasalaam, Dabaraqas, and Jaleelo) don’t comply with the WHO guideline for drinking water. Results from the analysis of water samples of 28 wells demonstrated a significant correlation between total coliform and E. coli counts (P = 0.01). Therefore, this water is not fit for human consumption unless it is treated. Conclusion: This study has demonstrated that all results of both mean values of total coliform and E. coli counts from groundwater of selected shallow wells and boreholes were beyond WHO standards, so water from Arabsiyo, Jaleelo, Dabaraqas, Dararweyne, and Darasalaam requires treatment before human consumption.

关键词： Membrane Filtration Method Escherichia Coli Coliform Shallow Wells Boreholes Indole Colony Forming Unit Indole Citrate Triple Sugar Iron

A New Method to Determine the Maximum Value of the Track Length of Alpha Particle in CR-39 Detector

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Materials Sciences and Applications 2015年第2期6卷 145-151页

作者： hussein A. ahmed A. Mohammed A. Said Ahmad Department of Physics Faculty of Science University of Zakho Duhok Iraq

The aim of this paper is to determine the maximum values of the track length (Lmax) of alpha particles in Nuclear Track Detector (type CR-39) using a new method by taking the relation between the etching time and the diameter square of alpha particle with different energies at constant bulk etch rate VB (1.45 μm/hr) by using TRACK_TEST program from Brun et al. function and Yu et al. function. Using the new equation, the maximum values of the track lengths of alpha particles measured in CR-39 detector have been found to be in a good agreement with the values measured by using Brun et al. function and Yu et al. function in TRACK_TEST program.

关键词： Maximum Value of Track Length CR-39 Range of Alpha Particle Nuclear Track Detector (NTD)