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Effects of adherence to the Mediterranean diet in children and adolescents with irritable bowel syndrome

World Journal of Clinical Pediatrics 2022年第4期11卷 330-340页

作者： mohammed Al-Biltagi Doaa El Amrousy Heba El Ashry Sara Maher mahmoud A mohammed Samir Hasan Department of Pediatrics University Medical centerKing Abdulla Medical CityArabian Gulf UniversityManama 26671Bahrain Department of Pediatrics Faculty of MedicineTanta UniversityTanta 31527Al GharbiaEgypt Department of Pediatrics University Medical CenterDr.Sulaiman Al-Habib Medical GroupManama 26671Bahrain Department of Pediatrics Tanta UniversityFaculty of MedicineTanta 31527AlghrabiaEgypt Department of Tropical Medicine Faculty of MedicineTanta UniversityTanta 31527AlghrabiaEgypt Department of Immunology Theodor Bilharz Research InstituteCairo 12411Egypt Department of Industrial Pharmacy Faculty of PharmacyAssiut UniversityAssiut 71515Egypt

BACKGROUND Irritable bowel syndrome(IBS)is a highly prevalent gastrointestinal disorder in children and adults,which increased over the past twenty *** Mediterranean diet is a well-known diet full of antioxidants and anti-inflammatory *** To evaluate the safety,tolerability,and effects of adherence to the Mediterranean diet on disease patterns in children and adolescents with *** This prospective,cross-sectional case-controlled study included 100 consecutive IBS patients diagnosed according to Rome IV criteria,aged 12-18 *** Group II on their regular diet for six *** IBS scores(IBS-SSS,IBS-QoL,and total score),different clinical and laboratory parameters were evaluated at the start and end of the *** The Mediterranean diet was safe and well-tolerated in IBS *** children and adolescents with good adherence to the Mediterranean diet(KIDMED Score≥8 points);group I showed significant improvement in IBS ***-SSS in the Mediterranean diet group was 237.2±65 at the beginning of the study and decreased to 163.2±33.8 at the end of the study(P0.05).The mean total IBS score in group I became 28.8±11.2 at the end of our study compared to 24.1±10.4 at the start(P<0.05)and significantly improved when compared to its level in group II at the end of the study(22.1±12.5 with

关键词： Mediterranean diet Irritable bowel syndrome Children and adolescents Safety Tolerability

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Etiological risk factors for subfertility among Palestinian women in Gaza

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The Journal of Biomedical Research 2013年第2期27卷 127-134页

作者： mahmoud mohammed Sirdah Abdelnasser Kassem Abushahla Bahaa Yousif Ghalayeni Ahmed Gamel Aburamadan Biology Department Al Azhar University Gaza Alawda Maternity Hospital AlBasm a Fertility Center

The inability to procreate is frequently considered a personal tragedy and a hardship for couples, impacting on the entire family and even the local community. In Gaza strip, Palestine, there has been no study on etiological risk factors for subfertility. The present study aimed to identify risk factors associated with subfertility among women in Gaza, Palestine. One hundred and sixty-nine women in the study group and 115 women in the control group were included. Cases were selected randomly from those referred to the A1 Basma Fertility Center, Gaza, Palestine. Data were collected through close-ended questionnaire, sonography, hormonal analysis and thrombophilia profile that included the methylenetetrahydrofolate reductase （MTHFR 677 C 〉 T）, factor V leiden （1691 G 〉 A） and pro- thrombin （20210 G 〉 A） genes. By using univariate analyses, the effects of different patient-related variables on the presence of subfertility were evaluated. A multiple logistic regression model was constructed, crude and adjusted odds ratios （OR） and 95% confidence intervals （95% CI） were calculated. The findings showed that 73.5 % （169/230） of the women referred to the A1 Basma Center sought treatment for subfertility. Different etiological risk factors were associated with subfertility, the most frequent of which in descending order were： thrombophilic disorders, fallopian tube problems, sex hormone abnormalities and polycystic ovary syndrome with an adjusted OR of 21.42, 13.63, 11.69 and 10.29, respectively. In conclusion, several etiological risk factors are responsible for subfertility among women in Gaza. Comprehensive evaluation of infertile women should be considered in the course of treatment; otherwise, the duration of sterility may be extended.

关键词： subfertility etiology risk factors Gaza Palestine

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Cytotoxic activity and phytochemical analysis of Arum palaestinum Boiss.

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Asian Pacific Journal of Tropical Biomedicine 2015年第11期5卷 944-947页

作者： Mai mohammed Farid Sameh Reda Hussein Lamiaa Fawzy Ibrahim mohammed Ali El Desouky Amr mohammed Elsayed Ahmad Ali El Oqlah mahmoud mohammed Saker Department of Phytochemistry and Plant Systematic National Research Center Department of Biochemistry Cairo University Department of Biological Sciences Yarmouk University Department of Plant Biotechnology National Research Center

Objective: To evaluate the in vitro cytotoxic activity of the fractionated extract as well as isolated compounds of Arum palaestinum Boiss.(A. palaestinum)(black calla lily), and to identify the volatile components which may be responsible for the potential antitumor ***: A. palaestinum was collected from its natural habitats and subjected to phytochemical analysis for separation of pure compounds. In vitro cytotoxic activity was investigated against four human carcinoma cell lines Hep2, He La, Hep G2 and MCF7 for the fractionated extract and isolated compounds. While, the diethyl ether fraction was subjected to GC–MS analysis as it exhibited the most potent cytotoxic effect to evaluate the active constituents responsible for the cytotoxic ***: Four flavonoid compounds were isolated(luteolin, chrysoeriol, isoorientin,isovitexin) from the diethyl ether and ethyl acetate. The extracts and the pure isolated compounds showed a significant high antiproliferative activity against all investigated cell lines. The GC–MS analysis revealed the separation and identification of 15 compounds representing 95.01% of the extract and belonging to different groups of chemical ***: The present study is considered to be the first report on the cytotoxic activities carried out on different selected fractions and pure compounds of A. palaestinum to provide evidences for its strong antitumor activities. In addition,chrysoeriol and isovitexin compounds were isolated for the first time from the studied taxa.

关键词： Black calla lily Araceae Flavonoids Cytotoxic acti

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An Experimental Study of the Effect of Rock/Fluid Interaction on Resistivity Logs during CO<sub>2</sub>Sequestration in Carbonate Rocks

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Journal of Geoscience and Environment Protection 2014年第3期2卷 1-7页

作者： Abdulrauf Adebayo mohammed mahmoud Petroleum Engineering Department King Fahd University of Petroleum & Minerals Dhahran Saudi Arabia

Accurate laboratory measurements and analysis of electrical properties of core samples are a prerequisite step to the evaluation of oil and gas reserves. In recent times, this evaluation technique has been adopted in carbon dioxide sequestration projects for estimating and monitoring carbon dioxide (CO2) accumulation in saline aquifers. Several papers have reported laboratory success in the use of resistivity measurements to monitor the flow and also estimate the volume of CO2 plume in geological formations. Such laboratory experiments did not capture the effect of CO2 -brine-rock interaction (CBRI) on saturation estimation. The possibility of a change in value resistivity due to CO2/brine/rock interactions, and the possible effect on CO2 monitoring and estimation are of immediate interest here. Preliminary results of an ongoing research work showed that a much longer experiment time accommodates CO2-brine-rock interaction which ultimately lead to change in rock resistivity. We hereby present the electrical behavior of carbonates to CO2/ brine/rock interaction during prolonged CO2 sequestration and the effect on saturation estimation. This electrical behavior and its possible effect on CO2 monitoring and estimation are discussed.

关键词： Carbon Dioxide Sequestration and Monitoring Resistivity Log Rock Fluid Interaction Archie Equation

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Factors Predicting Transformation of Non-Severe Pre-Eclampsia into Pre-Eclampsia with Severe Features

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Open Journal of Obstetrics and Gynecology 2023年第2期13卷 153-165页

作者： mohammed mahmoud Samy Ahmed Nagy Abdul-Rahman Younis Karim mohammed Labib Departmenrt of Obstetrics and Gynecology Faculty of Medicine Ain Shams University Cairo Egypt Ain Shams University Cairo Egypt

Background: Pre-eclampsia (PE), a complex, multisystem, pregnancy-associated hypertensive disorder, typically developing after the 20th week of gestation, that complicates 2% - 8% of pregnancies, is a leading cause of neonatal and maternal mortality and morbidity. Aim of the Work: To identify different factors predicting transformation of non-severe pre-eclampsia in to pre-eclampsia with severe features. Patients and Methods: This prospective cohort study was conducted at tertiary care hospital at Ain Shams University hospitals from June 2021 till January 2022 and performed on total of 100 patients who diagnosed as non-severe pre-eclampsia after exclusion of severity features. Results: The current study revealed that transformation to severe pre-eclampsia occurred in 33% of the studied cases. Body mass index (BMI), past and family histories of preeclampsia statistically were significantly higher in cases transformed into preeclampsia with severe features. Admission blood pressure, albumin dipstick, Oligohydramnios and IUGR statistically were significantly higher in cases with transformation from non-severe pre-eclampsia into pre-eclampsia with severe features. Platelet count statistically was significantly lower in cases with transformation from non-severe pre-eclampsia into pre-eclampsia with severe features Conclusion: Our study results identified the most important clinical risk factors for transformation to severe features of pre-eclampsia from non-severe features and provided new information on the level of risk associated with specific combinations of risk factors (BMI ≥ 35.4, admission systolic blood pressure, admission diastolic blood pressure, albumin dipstick 4+ and platelets count) with low significant diagnostic performance in predicting transformation from non-severe pre-eclampsia into pre-eclampsia with severe features.

关键词： Pre-Eclampsia Blood Pressure Body Mass Index Platelet Count

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1961～2015年黑龙江省西部半干旱区气候变化评估

1961～2015年黑龙江省西部半干旱区气候变化评估

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作者： mahmoud mohammed Ahmed Hamdy Hassanien 扬州大学

学位级别：硕士

1.绪论1.1背景和意义研究干旱变化对区域生态环境保护和可持续发展具有重要意义。根据世界气象组织(WMO)的统计,全球气象灾害约占所有自然灾害的70%,而干旱占所有气象灾害的比例达50%。干旱带来的损失也是自然灾害中最大的。近几十年来... 详细信息

1.绪论1.1背景和意义研究干旱变化对区域生态环境保护和可持续发展具有重要意义。根据世界气象组织(WMO)的统计,全球气象灾害约占所有自然灾害的70%,而干旱占所有气象灾害的比例达50%。干旱带来的损失也是自然灾害中最大的。近几十年来,全球干旱情况变得更加严重,影响也更为广泛。干旱也是我国农业面临的主要挑战性自然灾害之一,位于黑龙江省西部半干旱区的松嫩平原是我国重要的商品粮基地。该区处于我国东北高纬度寒区,半干旱季风气候显著,年降水量时空分布不均,冬季积雪少,春季干旱频发,气象条件对农业生产非常不利。开展该地区干旱变化特性与评估的研究,可为该地区防治和减轻干旱的影响,科学评价气候演变特征以及实现水资源的科学管理提供基础数据。对保障黑龙江省西部粮食产能和农业的可持续发展以及实现生态安全具有重要意义。1.2研究内容和技术路线1.2.1主要研究内容(1)黑龙江省西部半干旱区干旱特性评估选取具有黑龙江省西部半干旱气候特性的典型研究区,采用不同的单位时间间隔(1、3、6、12、24个月),推求研究区各时间间隔的标准化降水指数(Standardized Precipitation Index,SPI)和标准化降水-蒸散指数(Standardized Precipitation Evapotranspiration Index,SPEI),通过对不同时间间隔SPI和SPEI结果的分析,评价研究区各时间尺度的气象干旱特征及趋势。(2)主要气象因子的时间变异性分析采用变异系数法,计算研究区研究时段内各主要气象因子如降水量、气温、湿度、日照时数等年平均值序列的变异系数,通过对各气象因子变异系数的分析,对研究区各因子的变异性进行评价。(3)主要气象因子对降水的影响程度分析以年降水量为因变量,气温、相对湿度、日照时数和风速为自变量,构建多元线性回归模型,评价各因子对年降水量的线性相关程度以及影响的大小。(4)SPI和SPEI相关性分析针对不同的时间尺度(1、3、6、12和24个月)建立线性回归模型,以SPEI为因变量,SPI为自变量构建线性预测模型,验证各时间尺度SPEI和SPI值之间的差异性以及评价SPI和SPEI之间的线性关系。1.2.2技术路线根据研究的主要内容、所采用的研究方法和手段,拟采用的技术路线图如图1所示。2.材料和方法2.1研究区简介研究区位于黑龙江省西部(46°14’24"22°2624"25°31’48"E)(见图2),该区主要位于齐齐哈尔地区境内,处于松嫩平原腹地,冬季漫长寒冷,夏季短暂凉爽,年均气温2.0.5°C;多年平均降雨量450mm左右,降雨季节性分布不均,超过80%集中在6月的雨季;年潜在蒸散发量超过1000 mm,年降雨蒸发比在0.2.5之间,为半干旱区。研究区位置如图2所示。2.2气象数据收集在国家气象科学数据中心获取了研究区1961015年6个气象站的逐日气象数据(降水量、温度、相对湿度、太阳辐射和风速),气象站的分布如图2所示。2.3研究方法2.3.1 SPI和SPEI SPI是由美国科学家McKee等于1993年提出的一种多时间尺度干旱指数,采用Gamma函数来描述降水量的变化,只需降水量即可计算,通过SPI值可判别所评价的时间尺度内是否发生了干旱及其对应的等级,计算过程见文献。1月尺度SPI(SPI1)和3月尺度SPI(SPI3)能够反映短期气象旱涝特征,与农业干旱关系密切;6月尺度SPI(SPI6)和12月尺度SPI(SPI12)可以清楚地反映长期的旱涝变化特征,其中,SPI2对长期旱涝影响及持续时段具有显著的标识功能,通常与河流水位,水库水位,甚至地下水位相关度较高,因此,多种时间尺度的SPI综合应用可实现对旱涝的综合监测评估。SPEI的计算是基于月降水与同期潜在蒸散量的差值D=P-PET(D为月降水量与潜在蒸散量的差值;P为月降水量,为月潜在蒸散发量,单位均为mm),采用Log-logistic分布函数对A数据序列求累积概率,进行正态化,最终可得到不同时间尺度如1、3、6、9、12、24月等的SPEI值,计算过程可参考文献。McKee等(1993)基于SPI值对干旱进行了分级。在某些同类研究中,对Mackee(1993)基于SPI值的干旱分级标准进行了拓展,并包含了湿润分级,也有研究采用SPEI值对干旱(含湿润)进行分级,丰富和发展了干旱分级方法。本文在参考同类研究对干旱(含湿润)分级方法的基础上,采用不同SPI和SPEI值对干旱等级进行划分(见表1)。PET的计算方法有很多种,FAO-56推荐的彭曼-蒙蒂斯(P-M)公式(式1)综合考虑了温度、太阳辐射量、风速和相对湿度对蒸散发的影响,因此,本文采用P-M公式推求尸五r。(?)式中:为潜在蒸散发量,rrmrd;A为不同温度下饱和水汽压曲线上的斜率,

关键词：黒龙江省西部半干旱区气候变化标准化降水指数标准化降水-蒸散指数多元线性回归分析

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EECLP: AWireless Sensor Networks Energy Efficient Cross-Layer Protocol

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Computers, Materials & Continua 2024年第8期80卷 2611-2631页

作者： mohammed Kaddi mohammed Omari Moamen Alnatoor LDDI Laboratory University of AdrarAdrar01000Algeria Computer Science and Engineering Department School of EngineeringAmerican University of Ras Al KhaimahRas Al Khaimah72603United Arab Emirates

Recent advancements in wireless communications have allowed the birth of novel wireless sensor networks(WSN).A sensor network comprises several micro-sensors deployed randomly in an area of interest.A micro-sensor is provided with an energy resource to supply electricity to all of its ***,the disposed energy resource is limited and battery replacement is generally *** this restriction,the sensors must conserve energy to prolong their *** energy conservation strategies for WSNs have been presented in the literature,from the application to the physical *** of these solutions focus only on optimizing a single layer in terms of energy *** this research,a novel cross-layer technique for WSNs’effective energy usage is *** most energy consumption factors exist in the Medium Access Control(MAC)layer and network layer,our EECLP protocol(Energy Efficient Cross-Layer Protocol for Wireless Sensor Networks)integrates these two layers to satisfy energy efficiency *** gain access to the transmission channel,we implement a communication regime at the MAC layer based on CSMA/CA(Carrier Sense Multiple Access/Collision Avoidance)***,depending on the activity and a standby period,we employ the RTS/CTS(Request to Send/Clear to Send)method to prevent collisions and resolve hidden node concerns by utilizing the network allocation vector(NAV)to calculate the transmission *** a greedy strategy,we establish chains amongst cluster members to mitigate the issue of high energy consumption in routing *** objective function was utilized to determine the optimal cross-chain path based on the distances to the base station(BS)and residual energy(RE).The simulation,testing,and comparison of the proposed protocol to peer protocols have shown superior outcomes and a prolonged network *** the suggested protocol,the network lifetime increases by 10%compared to FAMACO(Fuzzy and Ant Col

关键词： WSN energy consumption MAC layer network layer EECLP energy-efficient lifespan

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Smartphone-Based Wi-Fi Analysis for Bus Passenger Counting

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Computers, Materials & Continua 2024年第4期79卷 875-907页

作者： mohammed Alatiyyah Department of Computer Science College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAl-Kharj16278Saudi Arabia

In the contemporary era of technological advancement,smartphones have become an indispensable part of individuals’daily lives,exerting a pervasive *** paper presents an innovative approach to passenger countingonbuses throughthe analysis ofWi-Fi signals emanating frompassengers’mobile *** study seeks to scrutinize the reliability of digital Wi-Fi environments in predicting bus occupancy levels,thereby addressing a crucial aspect of public *** proposed system comprises three crucial elements:Signal capture,data filtration,and the calculation and estimation of passenger *** pivotal findings reveal that the system demonstrates commendable accuracy in estimating passenger counts undermoderate-crowding conditions,with an average deviation of 20%from the ground truth and an accuracy rate ranging from 90%to 100%.This underscores its efficacy in scenarios characterized by moderate levels of ***,in densely crowded conditions,the system exhibits a tendency to overestimate passenger numbers,occasionally doubling the actual *** acknowledging the need for further research to enhance accuracy in crowded conditions,this study presents a pioneering avenue to address a significant concern in public *** implications of the findings are poised to contribute substantially to the enhancement of bus operations and service quality.

关键词： Public transportation digital environment passenger estimation signal capturing Wi-Fi

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庞特指数分析法应用于中国人群和埃及人群的可信度分析

庞特指数分析法应用于中国人群和埃及人群的可信度分析

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作者：马乐登（mohammed mahmoud Badran）华中科技大学

学位级别：硕士

牙冠大小和牙弓宽度之间的关系在正畸治疗中扮演着重要的作用。目前已经有很多学者进行了这些相关指数的研究。其中一位研究者Pont所确定的一种理想的牙弓宽度预测方法已经被大家所熟知，即庞特指数分析法（Pont’s index）。本研究的... 详细信息

牙冠大小和牙弓宽度之间的关系在正畸治疗中扮演着重要的作用。目前已经有很多学者进行了这些相关指数的研究。其中一位研究者Pont所确定的一种理想的牙弓宽度预测方法已经被大家所熟知，即庞特指数分析法（Pont’s index）。本研究的目的是确定庞特指数分析法是否均可以在中国人群和埃及人群中适用，并且将本研究的数据结果与其他文献中不同人种的数据结果进行对比。本研究从中国武汉同济医院收集53个年龄从14到21岁的口腔病人的数据，并以同样的方法从埃及开罗大学医院收集53个年龄在16到23岁之间的口腔病人的数据。所有测量都是直接在石膏模型上进行的，测量包括庞特指数中提出的：分别测量四个上颌切牙的牙冠近远中向宽度之和，上颌左右第一前磨牙近中窝间牙弓宽度和第一磨牙中央窝间的牙弓宽度。根据庞特指数进行数据统计和相关系数分析，结果显示，在上颌左右第一前磨牙近中窝间实际牙弓宽度与根据庞特指数分析法预测出来的牙弓宽度之间，以及在第一磨牙中央窝间的实际牙弓宽度与根据庞特指数分析法预测出来的牙弓宽度之间，不论是在中国人群样本还是在埃及人群样本中相关性都很低，中国人群样本中的相关系数值分别为（0.096和0.12），埃及人群样本的为（0.013和0.21）。埃及人群中均不适用。得出的结论为：庞特指数分析法中应用于预测理想的牙弓宽度的方法在中国人群和.

关键词：口腔正畸庞特指数分析法中国人群埃及人群可信度分析牙弓宽度预测

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A Clinic-Epidemilogical Study of Cases of Locally Advanced Non Small Cell Lung Cancer (NSCLC) That Received Radiotherapy at NCI Cairo in the Period from 2001-2010

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Journal of Cancer Therapy 2014年第6期5卷 542-551页

作者： Mohamed Lotayef Azza Taher Hanna Attia Azza Nasr Hisham El Hossieny mohammed mahmoud Noha Essam Clinical Oncology Department Faculty of medicine Cairo University Cairo Egypt Radiation Oncology Department National Cancer Institute Cairo University Cairo Egypt

Purpose: This work was to study the clinic-epidemiological characteristics of patients with locally advanced NCSLC and to analyze their prognostic factors and also the results of different treatment modalities for local control and their effect on overall survival (OAS). Materials and Methods: This is a retrospective study including 121 patients with primary locally advanced NSCLC diagnosed between 2001 and 2010 at the radiotherapy department , National Cancer Institute, Cairo University, Egypt. Results: The study showed significant correlation between the tumor size 60, moderately differentiated tumors G2 and treatment outcomes;better locoregional control and better survival rates. On the opposite side poorly differentiated tumors G3, tumor size > 7 cm had the worst locoregional control and survival rates. The study also showed significant statistical correlation between treatment modality, locoregional control and survival rates. Patients who were treated by either concommitent chemo-radiotherapy or sequential chemo-radiotherapy had better local control compared to other patients who were treated by radical radiotherapy, and they also had the best survival rates among all the other treatment groups. The average 6 months OAS rates for all studied patients were 60.3% while 12 months survival rates were 38.8%. The median OAS was 7 months. Conclusions: From the present study, we concluded that concomitant chemo-radiotherapy is the treatment of choice for locally advanced non small cell lung cancer;also we concluded that better performance status and higher hemoglobin levels have better treatment outcome in these cases.

关键词： Non Small Cell Lung Cancer Concomitant Chemo-Radiotherapy

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