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Journal of Minerals and Materials Ch.racterization and Engineering 2019年第4期7卷 137-149页

作者： arafa Elsayed Elh.lloty Moh.mmed Tah. Nooman Rafik Kh.iry Abdelwah.b Ah.ed Islam Abdullah Civil Engineering Department Faculty of Engineering Al-Azhar University Cairo Egypt

Th.s research.aimed to clarify th. role of by-product materials, such.as CKD with.SF as partial replacement by weigh. of cement in concrete manufacturing and inclusion on different ch.racteristics of concrete. Concrete test specimens were mixed with.0%, 5%, 10%, 15%, 20% and 25% (CKD) with.15% (SF) as partial replacement by weigh. of Cement (CEM I-52.5N). Fresh.concrete properties h.ve been evaluated by workability measurement slump test. Wh.le h.rdened concrete properties h.ve been evaluated by compressive, split tensile and flexural strength. tests at ages 7, 28 and 56 days, but evaluated for bond strength. modulus of elasticity and ch.mical composition measurement with.X-Ray Fluorescence at age of 28 days. Th. test results h.ve revealed th.t th. increase of CKD amount with.fixed amount of SF in concrete mixtures as partial replacement by weigh. of cement leads to gradual decrease of fresh.concrete workability. In concrete mixtures, 20% CKD in th. presence of 15% SF as partial replacement by th. weigh. of cement are th. optimum ratios wh.ch.can be used with.ut any negative effect on mech.nical properties compressive, indirect tensile, flexural and bond strength.at all th. ages of concrete. Also modulus of elasticity and bond strength.increased by 8.81% and 0.69% respectively at th. age 28 days compared with.control mixture.

关键词： Partial Replacement of Cement Cement Kiln Dust (CKD) Silica Fume (SF) Properties of Fresh and h.rdened Concrete Modulus of Elasticity Bond Strength XRF

h.pcidin Proh.rmone Levels in Patients with.Primary Open-Angle Glaucoma

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Open Journal of Oph.h.lmology 2014年第1期4卷 18-23页

作者： Asaad A. Gh.nem Salah.E. Mady Tarek N. Attia Lamiaa F. arafa Department of Medical Bioch.mistry Faculty of Medicine Mansoura University Mansoura Egypt Mansoura Oph.h.lmic Center Faculty of Medicine Man-soura University Mansoura Egypt Oph.h.lmology Department Faculty of Medicine Banha University Banha Egypt

Aims: To assess th. levels of h.pcidin proh.rmone (h.p) in aqueous h.mor and plasma of h.man eyes with.primary open-angle glaucoma (POAG) and to correlate th.ir concentrations with.th. severity of glaucoma. Meth.ds: Sixty patients with.POAG and forty five patients with.senile cataract (control group) were enrolled in th. study prospectively. Aqueous h.mor samples were obtained by paracentesis from glaucoma and cataract patients wh. were undergoing elective surgery. Aqueous h.mor and?corresponding plasma samples were analyzed for h.p concentrations by enzyme-linked immunosorbent assay. Results: h.p levels were significantly lower in aqueous h.mor of POAG patients with.respect to th. comparative group of cataract patients (P h. levels of h.p in plasma of POAG and cataract patients. A positive correlation was found between plasma/aqueous h.mor h.p concentration in POAG versus th. control group (P h.p levels and th. severity of visual field loss. Conclusion: Lower levels of aqueous h.mor h.p may be associated with.POAG. In addition, h.p may be useful protein derivatives levels in aqueous h.mor of POAG patients as a consequence of glaucomatous damage.

关键词： h.pcidin Proh.rmone Aqueous h.mor POAG Cataract

标准井分析技术提高产量递减曲线预测精度——降低对递减曲线分析（DCA）法的主观判断，更佳地预测油气剩余探明储量（1P）

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世界石油工业 2016年第2期23卷 54-57页

作者： arafa al h.rlh. 阿曼PetrogasRima有限公司

探明储量，即IP储量，又称证实储量，是指经过地质勘探的能源资源储量，是能源资源储量统计中的一个最基本的指标，是制订中长期能源计划与国民经济计划的基础。

关键词：探明储量产量递减曲线预测精度主观判断曲线分析技术标准剩余

Natural Transform for Solving Fractional Models

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Journal of Applied Math.matics and Ph.sics 2015年第12期3卷 1633-1644页

作者： Ah.ed Safwat Abdel-Rady Saad Zagloul Rida Anas Ah.ed Moh.med arafa h.mdy Ragab Abedl-Rah.m Department of Math.matics Faculty of ScienceSouth Valley UniversityQenaEgypt Department of Math.matics and Computer Science Faculty of SciencePort Said UniversityPort SaidEgypt

In th.s paper, we present a novel tech.ique to obtain approximate analytical solution of fractional ph.sical models. Th. new tech.ique is a combination of a domain decomposition meth.d and natural transform meth.d called a domain decomposition natural transform meth.d (ADNTM). Th. fractional derivatives are considered in Caputo sense. To illustrate th. power and reliability of th. meth.d some applications are provided.

关键词： Fractional Calculus Natural Transform A Domain Decomposition Natural Transform Meth.d(ADNTM) Fokker-Planck Equation Sch.odinger Equation Kelin-Gorden Equation

On Solutions of Generalized Bacterial Ch.motaxis Model in a Semi-Solid Medium

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Applied Math.matics 2011年第12期2卷 1515-1521页

作者： Ah.ed M. A. El-Sayed Saad Z. Rida Anas A. M. arafa 不详

In th.s paper, th. Adomian’s decomposition meth.d h.s been developed to yield approximate solution of bacterial ch.motaxis model of fractional order in a semi-solid medium. Th. fractional derivatives are described in th. Caputo sense. Th. meth.d introduces a promising tool for solving many linear and nonlinear fractional differential equations.

关键词： Decomposition Meth.d Bacterial Ch.motaxis Semi-Solid Medium Fractional Calculus

A Pictorial Review on th. Role of 64-Slice h. MDCT in Detecting Post CABG Cardioth.racic Complications

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Open Journal of Th.racic Surgery 2014年第2期4卷 48-58页

作者： Ibrah.m M. h.lmy Akram M. Asbeutah.Inas M. ElFiki Osama E. arafa Department of Cardioth.racic Surgery Co-Operative Union Cardiac Hospital Ministry of Health Kuwait City Kuwait Department of Clinical Radiology Co-Operative Union Cardiac Hospital Ministry of Health Kuwait City Kuwait Department of Radiologic Sciences Faculty of Allied Health Sciences Kuwait University Kuwait City Kuwait Radiology Department Zagazig University Zagazig Eygpt

Aims: Th. aim of th.s study is to h.ve a pictorial review on th. role of 64-slice multi-detector computerized tomograph. (MDCT) in detecting post coronary artery graft (GABG) cardioth.racic complications. Materials & Meth.ds: During th. period from November 2012 to December 2013, a prospective evaluation of 40 patients with.suspected post-operative cardioth.racic complications underwent MDCT coronary angiograph. in our clinical radiology department. Informed consent was obtained from all patients and th. study h.d institutional review board approval. Descriptive statistics were used to analyze th. data. Results: Th.re were 35 males and 5 females, th.ir mean age ± (SD) of 57 ± 3.9 years. A total of 60 grafts were available for evaluation. Two patients could not be evaluated due to clip-artifacts and advanced ath.rosclerotic disease. Eleven patients sh.wed occluded graft (9) at proximal and distal (2) anastomosis. Seven patients sh.wed pericardial effusion and pleural effusion (8). Two patients h.d ch.st wall infection with.retrosternal extension and associated mediastinal involvement. One patient sh.wed aneurysm at th. re-implanted coronary artery after Bentall procedure, anoth.r patient h.d postoperative myocardial infarction, one patient sh.wed dissection of th. ascending aorta, one patient pseudoaneurysm of left ventricle, two patients localized pericardial h.matoma, two patients pulmonary embolism, and two patients sh.wed pneumonia. All th.se complications occurred from 1-60 days from surgery. Conclusion: h. MDCT is an easy non-invasive tech.ique wh.ch.sh.wed to be effective in diagnosis of most postoperative CABG cardioth.racic complications and is gaining more ground in difficult clinical situations.

关键词： Cardioth.racic Surgery Cardioth.racic Complications Multi-Detector Computerized Tomograph. Coronary Arterial Bypass Graft

Survey Study of Acute and Long Term Effects of Female Genital Mutilation among Women in Sh.rkia Governorate

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Open Journal of Obstetrics and Gynecology 2014年第14期4卷 874-880页

作者： Essa M. arafa Amany M. Abdelgh.ny Nadia M. Madkour Wael S. Nossair Ekramy A. Moh.med Department of Obstetrics and Gynecology Zagazig University Hospitals Zagazig Egypt

Objective: Th. aim of th.s study is to evaluate th. acute and long-term effects of female genital mutilation (FGM) among women in Sh.rkia Governorate. Meth.d: Th.s was a cross-sectional descriptive study carried out in Zagazic University h.spital (ZUh. over a two years period from January 2012 to January 2014. Th. overall sample consisted of 1500 women. An interview was utilized to collect th. necessary data. Th. questionnaires were administered face to face, in Arabic language. Four open and 25 close-ended questions were used to collect socio-demograph.c data of th. sample: women’s experience about th. circumcision, occurrence of h.alth.h.zards after circumcision, and sexual effects on married women. Intention of all women (circumcised or not) to circumcise?th.ir daugh.ers was also documented. Results: Th.s study revealed th.t th. prevalence of FGM in?Sh.rkia Governorate was about 85.5%. Th. majority of circumcised women were Muslims (94.4%), married (87.9%), h.usewife (81.4%), illiterate or with.low education level (45.5% and 38.5% respectively) and from rural areas (82.2%). Th. most common types of FGM were type I (49.2%) and type II (50.8%). Th. most common motive of FGM was th. religious cause (46.6%). Th. majority of circumcised women (59%) denied th. occurrence of any acute complication. Th. reported acute complications in th.s study were bleeding (19.6%), urine retention (2.3%), infection (6.3%) and difficult walking (12.8%). Th. majority of circumcised women (86%) denied th. occurrence of any problems at labor related to circumcision. Th. reported problems at labor in th.s study were narrowing of introitus (8.4%), laceration (0.7%) and bleeding (4.9%). In th.s study, 74.6% of circumcised women believed th.t th.re was no effect of circumcision on th.ir sexual satisfaction and 92.1% of circumcised women believed th.t th.re was no effect of circumcision on th.ir h.sband’s sexual satisfaction. Approximately 16% of circumcised women complained of dyspareunia and

关键词： Female Genital Mutilation Female Circumcision Sexual Satisfaction

Correlation between Perifollicular Vascularity and Outcome in Stimulated Intrauterine Insemination Treatment Cycles: A Study Using Two-Dimensional Transvaginal Power Doppler Ultrasound

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Open Journal of Obstetrics and Gynecology 2014年第15期4卷 973-980页

作者： Nadia M. Madkour Wael S. Nossair Essa M. arafa Amany M. Abdelgh.ny Ekramy A. Moh.med Walid A. Abdelsalam Obstetrics & Gynecology Department Faculty of Medicine Zagazig University Zagazig Egypt

Objective:?Th. aim of th.s study is to assess any potential relationsh.p between perifollicular vascularity and occurrence of pregnancy in cases of stimulated IUI cycles using th. subjective grading system by 2D transvaginal power Doppler ultrasonograph..?Design: A prospective cross sectional coh.rt study. Meth.d: Th.s is a prospective cross-sectional coh.rt study of 90 stimulated IUI treatment cycles. Selected women were prescribed clomiph.ne citrate combined with.h.gh.y purified urinary follicle stimulating h.rmone. All patients underwent serial transvaginal ultrasound scans starting from day 6 to 7 of th. cycle. Perifollicular Doppler blood flows were assessed in dominant follicles ≥18 mm. Th. patients th.n were categorized into 3 groups (h.gh.vascularity group {G3 & G4}, low vascularity group {G1 & G2} and mixed grades group). Oth.r parameters measured included number of follicles ≥ 18 mm in both.ovaries, endometrial th.ckness and estradiol (E2) level . h.man ch.rionic gonadotropin (h.G) injection 10,000 IU IM was given to th. patient wh.n th. dominant follicle reach.d 18 mm in diameter. At th.t time, th. endometrium was evaluated as regards endometrial th.ckness. IUI was carried out using prepared/“wash.d” semen (h.sband). All patients received luteal support in th. form of progesterone from day of IUI for 14 days. Serum Β-h.G was estimated 2 weeks after insemination. Results: In th.s study, from all 90 cases only 8 cases got pregnant with.pregnancy rate of 8.88% (6 cases got pregnant in h.gh.grade vascularity group;2 cases in mixed grades group and no cases got pregnant?in low grade group). Th.re was statistically significant difference among th. 3 groups as regarding?th. pregnancy rate (P value = 0.02). Th.re is statistically significant difference in perifollicular resistance index (RI) and pulsatility index (PI) between pregnant and non pregnant cases (P value = 0.016 and 0.047 respectively). In th.s study, th.re is no statistically significant difference b

关键词： Perifollicular Vascularity IUI 2D Power Doppler Ultrasound

Nutritional Status of Moth.rs and Its Determinants in Alemtidad Area, Kh.rtoum

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Food and Nutrition Sciences 2014年第22期5卷 2203-2208页

作者： Waled Amen Moh.mmed Ah.ed Eiman Abdalla Ah.ed Kh.lid Ah.ad Omar arafa Eh.b Ibrah.m Salih.El-Amin Ziad M. Alostaz Kh.lid Eltah.r Kh.lid Nursing Department Faculty of Applied Medical Sciences Albaha University Al Bahah Saudi Arabia Altaiseer Medical Complex Khartoum Sudan Faculty of Applied Medical Sciences Albaha University Al Bahah Saudi Arabia Basic Sciences Department Faculty of Applied Medical Sciences Albaha University Al Bahah Saudi Arabia Faculty of Applied Medical Sciences Albaha University Al Bahah Saudi Arabia

Background: Nutritional status of moth.rs is considered one of th. major problems facing moth.rs in th. world. Th. nutrition plays a major role in moth.rs and ch.ld h.alth. Objective: Th.s study aims to assess moth.rs’ nutritional status and its determinants in Alemtidad area, Kh.rtoum. Meth.ds: A descriptive community based survey was conducted in th. Alemtidad area of Kh.rtoum between November 2012 and December 2012. One h.ndred and eigh.y moth.rs were selected by simple randomization. Data were collected by using structured designed questionnaire wh.ch.was th.n analyzed by (SPSS) program version 20. Results: Th. study conducted among moth.rs in Alemtidad area;th.ir age ranged between 19 and 86 years with.th. mean age 38 ± 12 years. From th.se moth.rs about h.lf were unemployed, and h.ving mainly primary and secondary educational level. 81.1% of moth.rs were not able to select th. proper food according to age and nutrients and about 71.1% of moth.rs took two meals per day and 23.3% one meals per day, and only 5.6 take th.ee meals per day. Th. Body Mass Index (BMI) was calculated to measure th. nutrition status of moth.rs;th.s study sh.ws th.t moth.rs in Alemtidad are mainly overweigh. and obese, 45.6% and 18% respectively and only 35% with.n normal range of Body Mass Index (BMI). Conclusion: Th. study concludes th.t moth.rs are eith.r overweigh. or obese (45.6%, 17.7% respectively). Compared to national and international statistics th. findings of th.s study reflect h.gh.Body Mass Index (BMI) of moth.rs in Alemtidad.

关键词： Nutritional Status Determinant of Nutritional Status Food Consumption Moth.rs

Dosimetric Comparison between Conventional 2D and 3D Conformal Radioth.rapy in th. Treatment of Intact Breast Cancer

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Journal of Cancer Th.rapy 2017年第7期8卷 663-671页

作者： Amr Amin Eh.b El-Kest Moh.mmed Mah.oud arafa Abd El-h.fez Abdul-h.med El-Kateb Moh.med El-Nagdy Aida Tolba Eman h.meda Moh.med Abdelmajeed Radiation Oncology and Nuclear Medicine Department National Cancer Institute (NCI) Cairo University Giza Egypt National Institute for standards (NIS) Cairo Egypt Ph.sics Department Faculty of Science Helwan University Helwan Egypt Ph.sics Unit Radiation Oncology and Nuclear Medicine Department NCI Cairo University Giza Egypt

Background: Radioth.rapy (RT) tech.iques after Conservative Breast Surgery (CBS) vary. Th.ee Dimension (3D) planning allows for better plan optimization compared to 2 Dimension (2D) plans and also allowing for creating Dose Volume h.stograms (DVh.) for both.Planning Target Volume (PTV) and Organs at Risk (OAR). Patients and Meth.ds: Twenty consecutive patients with.CBS planned for wh.le breast and supraclavicular (SCV) RT at th. National Cancer Institute (NCI), Egypt between January and June 2016 were included in th.s study. All patients were planned clinically in 2D fash.on with.no more th.n 2 cm of ipsilateral lung allowed in th. tangential fields “Limited 2D” (Limit-2D) th.n Target and OAR volumes were drawn according to th. Radiation Th.rapy Oncology Group (RTOG) guidelines and 3D plans and a central slice PTV-based 2D plan, “Modified 2D” (Mod-2D), were performed in th. same Computerized Tomograph. (CT) slices for each.patient. Mono-Iso-Centeric tech.ique (MIT) was used in 3D plans. DVh.parameters were used to compare th. th.ee plans. Results: In 3D plans, compared to Limit-2D, coverage improved for th. intact breast (V95% = 95% versus (Vs) 69%, p = 0.036) and SCVPTV (V90% = 90% Vs 65%, p = 0.01). Th. breast and SCV V 107%, V112% and Dmax were better with.3D plan h.wever not statistical significant (NS). Junctional h.t spots were 120% and 107% in th. Limit-2D and 3D plans respectively (p = 0.04). Th. dose to th. h.art, mean (333 Vs 491 cGy), V10 (5% Vs 10%) and V20 (3% Vs 7%), Ipsilateral lung V20 (19% Vs 26%), and contra lateral breast D-max (205 Vs 462 cGy) were h.gh.r in 3D plans h.wever NS, and th. dose to th. cord was th. same. Comparison between 3D and Mod-2D sh.wed better OAR sparing with.3D with.mean h.art dose (491 cGy Vs 782 cGy, p = 0.025) and Ipsilateral lung V20 (26% Vs 32%, p = 0.07% with.statistically comparable target coverage. Conclusion: Th.s study demonstrated th.t application of 3D plan using MIT improves coverage of breast and SCVPTVs with.m

关键词： Mono-Iso-Centeric Tech.ique Breast Contouring Breast Conserving Radioth.rapy Dose Volume h.stogram (DVh.