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Re ned rigorous perturbation bounds for the SR decomposition

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Applied Mathematics(A Journal of Chinese Universities) 2021年第4期36卷 537-553页

作者： Mahvish samar Aamir Farooq Department of Mathematics Shantou UniversityShantou 515063China College of Mathematics and Statistics Chongqing UniversityChongqing 401331China

In this article,some new rigorous perturbation bounds for the SR decomposition un-der normwise or componentwise perturbations for a given matrix are ***,the explicit expressions for the mixed and componentwise condition numbers are presented by utilizing the block matrix-vector equation *** and trial results demonstrate that these new bounds are constantly more tightly than the comparing ones in the literature.

关键词： SR decomposition Rigorous perturbation bound Lyapunov majorant function Banach fixed point theorem Mixed and componentwise condition numbers

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厂商双赢的战略

新营销 2012年第3期14卷 36-37页

作者： samar Birwadker

国际品牌一向被人们视为可靠和信誉的指向标，而零售商品牌则是实用、实惠的代名词，既竞争，又互补。那么，二者如何拓展各自的市场领地？如何合作共同拓展市场领地？

关键词：厂商零售商品牌国际品牌代名词领地市场

Evaluation of Myocardial Performance in Hypertensive Patients with Type 2 Diabetes and Normal Ejection Fraction

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Health 2015年第12期7卷 1721-1724页

作者： Muataz F. Hussein samar I. Essa Anmar Z. Saleh Department of Medicine College of Medicine University of Baghdad Baghdad Iraq Department of Physics College of Science University of Baghdad Baghdad Iraq Department of Medical Physics College of Medicine University of Baghdad Baghdad Iraq

Diabetes (DM) and hypertension (HT) cause changes in cardiac performance. Long-term diabetes and hypertension can lead to changes in cardiac contractility, reduced left ventricular efficiency and heart failure. The aim of this study is to evaluate the effect of the coexistence of diabetes mellitus and hypertension on left ventricular myocardial performance and structural changes. The study involved 45 patients with essential hypertension and type 2 diabetes (14 males and 31 females, their mean age was 53.28 ± 13.28 years), and 45 healthy subjects (10 males and 35 females, their mean age was 48.11 ± 13.07 years) as a control group. Transthoracic echocardiography was done for all patients. The echocardiographic measurements included: left ventricle internal diameter at end diastole (LVIDd), left ventricle internal diameter at end systole (LVIDs), peak velocity of early transmitral flow (E), peak velocity of late transmitral flow (A), ejection fraction (EF%), isovolumic relaxation time (IVRT), isovolumic contraction time (IVCT) and ejection time (ET) from which the index of myocardial performance (IMP) was calculated. Results revealed a significant change in the ratio (E/A) between patients and controls (-32.45%) with p value p value 0.05. In conclusion, diabetic patients with hypertension had an increase in IMP and reduced E/A indicating deterioration in cardiac performance despite normal ejection fraction and insignificant change in LV dimensions.

关键词： Diabetes and Hypertension Echocardiography Index of Myocardial Performance

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厂商双赢的战略

企业家信息 2012年第5期 50-51页

作者： samar Birwadker

国际品牌一向被人们视为可靠和信誉的指向标，而零售商品牌则是实用、实惠的代名词，既竞争，又互补。那么。二者如何拓展各自的市场领地？如何合作共同拓展市场领地？

关键词：厂商零售商品牌国际品牌代名词领地市场

Female Sexual Dysfunction in Elfayoum Governorate

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Advances in Sexual Medicine 2018年第1期8卷 1-13页

作者： samar El-Tahlawi Noha Ezzat Mohammad Asmaa Younes Elsary Noha Mohamed Yousef Talal Abdelreheem Dermatology and Venereology Department Faculty of Medicine Cairo University Cairo Egypt Dermatology and Venereology Department Faculty of Medicine Elfayoum University Elfayoum Egypt Public Health Department Faculty of Medicine Fayoum University Fayoum Egypt

Introduction: female sexual dysfunction (FSD) is a complex and poorly understood condition that affects females of all ages. Female sexual dysfunction has been a cyclic rather than a linear process that emphasizes biologic, psychological, social, hormonal, and environmental factors. Female sexual dysfunction is a high prevalent disorder reaching up to 60% of females with reported higher levels in postmenopausal. Aim of the work: was to estimate prevalence of FSD and its related factors in Elfayoum city. Subject and Method: This study was a cross sectional descriptive study conducted in Elfayoum city included 508 married females (above 21 years old) during the period from September 2016 to March 2017. Results: The prevalence of FSD among studied group was 61.2% versus 38.8% had normal sexual function, desire dysfunction was 42.3%, arousal dysfunction was 39.2%, lubrication dysfunction was 25%, orgasm dysfunction was 58.5%, satisfaction dysfunction was 58.1% and pain was 43.3%. There was statistically significant negative correlation between Female Sexual Function Index (FSFI) score and each of female and husband age, duration of marriage, and number of children. Low mean of FSFI score was found among females with irregular menstrual cycle, using contraceptive, not pregnant, mutilated and females who’s their husband had erectile or ejaculation disorders. Conclusion and recommendation: High prevalence of FSD among females in Elfayoum governorate. Many factors are found to affect FSD as FGM, each of female and husband age, duration of marriage, and number of children.

关键词： Female Sexual Dysfunction Elfayoum

Robust Level Flight Control Design For Scaled Yak-54 Unmanned Aerial Vehicle using Single Sliding Surface.

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Robust Level Flight Control Design For Scaled Yak-54 Unmanne...

Challenges and Factors Affecting the Implementation of E-Government in Jordan

第24届中国控制与决策会议

作者： Ussama Ali M. Zamurad Shah Raza samar Aamer Iqbal Bhatti Faculty of Electronic Engineering Mohammed Ali Jinnah University

This paper deals with devising robust nonlinear control strategy for benchmark system of scaled Yak-54 Unmanned Aerial Vehicle. Authors considered the applications of sliding mode controllers to the longitudinal flight dynamics of the Yak-54 UAV for executing maneuvers over full flight envelope. Unlike the classical technique of the two sliding surfaces for the two loops a single surface is selected for the level flight. Control of unmanned aerial vehicle involves the problem of incomplete measurements, modeling uncertainties and external disturbances which makes flight dynamic analysis and control system design difficult. We present an innovative robust control strategy based on powerful tools provided by the theory of sliding mode control algorithms. First order sliding mode controller are designed but they provide chattering at the control input thus a non linear second order super twisting controller is used to provide chattering free control with improved robust stabilization.

关键词： Sliding Mode Control SMC Higher Order Sliding Mode Control HOSM Strong Reachability Condition SRC

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Journal of Software Engineering and Applications 2014年第13期7卷 1111-1127页

作者： Muhannad Al-Shboul Osama Rababah Moh’d Al-Shboul Rawan Ghnemat samar Al-Saqqa Department of Curriculum and Instruction The University of Jordan Amman Jordan Department of Business Information Technology The University of Jordan Amman Jordan Department of Logistic Sciences German Jordanian University Amman Jordan Department of Computer Science Princess Sumaya University for Technology Amman Jordan

Electronic government (e-Government) in its simplest form can mean using information and communication technology (ICT) tools to provide services to citizens. Still with the huge benefits and synergies that e-Government grants to governments and societies, it faces many obstacles and challenges. Therefore, there are always a number of critical success factors and risks associated with e-Government. This paper highlights some of the key ones;it critically assesses key factors that influence e-Government services adoption and diffusion. Thus, the aim of this study is to examine and identify the factors that influence and affect the utilization of e-Government in the developing countries, specifically in Jordan. Furthermore, this article investigates the challenges and barriers that must be overcome in order to successfully implement e-Government in Jordan. Semi-structured interviews were conducted and used in this study to collect the data. The results of this study show that the most significant challenges and factors influencing the implementation of e-Government services in Jordan are related to budgeting and financial costs, human expertise, social influence, technological issues, lack of awareness, resistance of public employees, data privacy and security, the legal framework, the needed technology, administrative obstacles, and trust or believing in e-Government. Conclusions, recommendations and future work are stated at the end of the paper.

关键词： E-Government E-Services Challenges Factors Jordan

Cavernous hemangioma of the cervix and pregnancy: a case report

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Open Journal of Obstetrics and Gynecology 2011年第4期1卷 221-225页

作者： samar Elkhateb Mostafa Azzouzi Idrissi Kamilia Laabadi Leila Chbani Hikmat Chaara AbdIlah Melhouf 不详

Purpose: Cavernous haemangiomas of the uterine cervix are very rare and usually harmless. It is a benign tumor that may cause gynecological obstetrical complications. Although it is a benign condition but it can have serious consequences for the mother as well as for the baby. The treatment is often surgical and diagnosis is histological. Methods and Result: we reported a case of cavernous haemangioma of the cervix in a 25-year old multiparous patient, referred to our Centre in the 33 - 34 gestational weeks for premature labor with membranes rupture. A 3 cm × 6 cm soft regular purplish red mass is found in the uterine cervix. Tocolosys, prophylactic antibiotic therapy and corticotherapy for fetus pulmonary maturation were then decided after elimination of chorioamniotite signs. Caesarean has been made during labor, a week later, for tumor previa. The tumor excision has been made through the vagina after fetus extraction. The histological examination confirmed diagnosis of the cavernous haemangioma. Discussion: Further to this observation, the clinical, histological and therapeutic characteristics of the cavernous haemangioma unusual presentation were drawn up and literature enriched since this pathology is rare. Most previous reports in the literature consist of singlecase histories, and the experience of individual institutions is limited. The patients dramatically present dilemmas in the disease management. This can result in uncontrolled bleeding especially during operative delivery and may require hysterectomy. To avoid unexpected bleeding from haemangioma, patients should be repeatedly examined for haemangioma of the birth canal, and special care should be taken in choosing the delivery mode.

关键词： Cavernous Haemangioma Uterine Cervix Pregnancy Tocolytic Therapy

The Impact of the FreeStyle Libre^TM Flash Glucose Monitoring System on Glycemic Control in Patients with Diabetes;Observational Multicenter 15-Months Study

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International Journal of Clinical Medicine 2022年第8期13卷 391-404页

作者： Saud Alsifri Abdulkarim Almalki samar Alsifri Naif Alsifri Mohammed Moatism Sahar Alsifri Emad R. Issak Endocrinology & Diabetes Department Alhada Armed Forces Hospital Taif Saudi Arabia Medicine Department King Fahad Armed Forces Hospital Jeddah Saudi Arabia Medicine Department East Jeddah Hospital Jeddah Saudi Arabia King Abdulaziz University Hospital Jeddah Saudi Arabia Medicine Department Asalam Center Cairo Egypt

Objectives: The study was to determine the impact of using the FreeStyle LibreTM flash glucose monitoring system on glycemic control and the rate of events due to diabetes in people with diabetes from different types and age groups. Methods: a retrospective cohort chart review study was carried out at three centers in the Taif region in the Kingdom of Saudi Arabia: The study was approved by an accredited centralized institutional review board. Paper or electronic medical records were included for individuals of any age with diabetes (type 1, type 2, gestational diabetes) managed with diet, insulin therapy, or/and oral antihyperglycemic medication and/or non-insulin injection therapy. The primary outcome measure was the laboratory HbA1c level as well as reduction. Secondary outcome measures were frequency of severe hypoglycemia, admission to hospital or ER visit related to diabetes complications, and severe hyperglycemia (DKA or HHS). Results: Data was analyzed from 1695 patients. The average HbA1c before using the flash glucose monitoring system was 9.60% ± 1.44% and 3 months HbA1c after using the FreeStyle LibreTM flash glucose monitoring system was 8.70% + 1.45% for a difference of -0.90% ([95% CI -0.92: -0.88];p 65 years, (p-values Conclusion: The benefits of using the FreeStyle LibreTM flash glucose monitoring system are self-evident in reducing HbA1c and events due to hyperglycemia or hypoglycemia.

关键词： FreeStyle LibreTM Flash Glucose Monitoring System Diabetes HbA1C Hypoglycemia Diabetic Ketoacidosis Hyperglycemic Hyperosmolar State