83 hasil untuk "Sayed El-Sayed"
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The Sampling Distribution of Ridge Parameter Estimator
In this work we derived the sampling distribution of a certain ridge parameter estimator. Three lemmas have been proved to get the results. Finally, a simulation procedure has been conducted to examine and justify the theoretical results that have been obtained.
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A Modified Test for Multiple Regression Function
We introduced a new statistic test, to test the significance of the multiple regression models. The new test is adequate to test the model if there is any correlation among the independent variables or there is not. The power of the new test was calculated by the simulation procedure. Finally, two…
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Power of A Score Test in One Way Model Under Order Restriction
This paper discusses the power of the score test for homogeneity or equality of normal means with two alternative order restrictions, the simple ordering and the umbrella ordering (unimodal). The power of the score test was studied using the pool adjacent violators algorithm (PAVA). Simulation has…
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Some Useful Matrix Derivatives with Statistical Applications in Econometrics
In this paper we present some useful results in matrix calculus which will be used in econometrics. As an application of these results an iterative instrumental variable estimator (IVE) interpretation will be introduced and given for the maximum likelihood estimators (MLE) of the parameters of…
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Comparison Study between Intralesional Injection of MMC with Bare Sclera Excision of Pterygium and Conjunctiva Auto Grafting Technique
Background: Pterygium is a fibrovascular tissue that abnormally invades the cornea from the conjunctiva.Aim of the work: Comparison Bare sclera technique of pterygium excision immediately after injecting it with MMC and conjunctival autografting without using MMC regarding recurrence rate and other…
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AMELIORATING EFFECT OF THYMOQUINONE ON THE DELETERIOUS EFFECTS OF MOBILE PHONE RADIATION IN THE RAT BRAIN
Tremendous concerns have been raised about the possibility that exposure to electromagnetic radiation (EMR) from mobile phones could affect people’s health. Many experimental studies suggest the possible role of reactive oxygen species (ROS) in EMR-induced damage in brain tissues with subsequent…
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Relationship between Heart rate variability and some Pulmonary functions of handball players
The current study is one of the scientific attempts to study the relationship between the technical requirements of the higher levels of handball players and Heart rate variability and their pulmonary functions Study Objective: Identify the relationship between the rate of change in Heart rate…
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L’intelligence artificielle et la traduction des figures de style analogiques: le cas de « Je balaie le soleil des terrasses (Aknusu al-chams an al-sutuh) » de Hanan El -Cheikh (Étude croisée de deux traductions automatique et humaine)
La littérature ne vise pas la simple communication informative ; elle cherche plutôt à affecter. Elle correspond des procédés spécifiques : la forme de langue, les procédés esthétiques. Par conséquent, elle pose au traducteur des problèmes attachés à sa nature. Et le traducteur doit tenir compte…
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القراءات القرآنية وأثر إبدال حرف من بنية الكلمة بآخر على المعنى
الأهداف: يهدف هذا البحث إلى بيان أَثَر إبدال حرف بنائيّ ــ أصلي من حروف الكلمة ــ بآخر في تنوُّعِ القراءاتِ القرآنيَّة المتواترة، وبيان الدلالات المتوجِّهة للكلمتين المختلفَتَيْنِ من جهة، وترابطهما واتساقهما من جهة أخرى؛ وصولًا لإثراء معاني آي الذكر الحكيم. المنهجية: اتَّبَعتْ الدراسة المنهج…
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Managing leisure time and its relation to positive mental health of elderly in Dakahlia Governorate
This Research aims to identify the relationship between leisure time management and positive mental health for elderly in Dakahlia Governorate by answering the following questions:1. How important to spend leisure time for elderly and how to spend it?2. What is the level of leisure time management…
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Histological and Morphometric Analysis of the Effects of Methyl Methacrylate compounds on the Skin of Adult Male Albino Rats: a model for Reflection on Occupational Hazards
Introduction: The skin is the largest organ in body subjected to external and internal stressors. Methyl methacrylate compounds have proven to be hazardous in many professionals dealing with them. These compounds are mainly used by dentists, nail salon technicians and some orthopedic surgeons.Aim…
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La dépression à travers « Un quinze août à Paris : Histoire d’une dépression » de Céline Curiol et « Au bord de Al-Kawthar » d’Ali Ataa Étude comparative
« Un quinze août à Paris : Histoire d’une dépression » de Céline Curiol, et « Au bord de Al-Kawthar » d’Ali Ataa, offrent un regard intime et déchirant sur la maladie mentale. À travers ces deux ouvrages à forte dimension autobiographique, Ali Ataa et Céline Curiol nous plongent dans un univers…
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La schizophrénie et l’écriture féministe à travers «Blanc chaud » ou "Bayad sakhen" de Souhir El-Mosadafa et « Les silences de Lucie » de Alice Pasina Étude comparée
…grave dans leurs œuvres. Parmi lesquelles nous avons choisi Souhir El-Mosadafa ,poète, traductrice et romancière égyptienne et Alice Pasina (Karine Pasina de Simone) est professeure dans une école et écrivaine française. Leurs livres abordent des problèmes mentaux, psychiatriques, et de multiples…
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L’espace dans « La femme adultère » d’Albert Camus et « La Sirène » ou « Al Nadaha » de Youssef Idriss Étude comparée
Les espaces ont toujours fasciné Idriss et Camus qui affirment avoir écrit leurs nouvelles pour témoigner d’une époque donnée et pour l’amour de quelques lieux. Les deux écrivains ont réussi à attirer l’attention des lecteurs à l’importance de l’espace quelle que soit sa dimension. Pour eux, les…
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A Modification Rule on Selection of the Ridge Parameter.
Many formulae have been suggested to estimate the ridge parameters. Most of these formulae ignore the features of the model such as number of the explanatory variables, degree of illconditioning and the significancy of the model. In this article two formulae are proposed for selecting the ridge…
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Can Dexmedetomidine Attenuate Neuroapoptosis and Neuroinflammation Induced By Ketamine in Neonatal Rat Hippocampus via Modulation of TNF-Α, IL6, Β-Catenin, Caspase3 Expression and Adjustment of Mtor/Nrf2 Signaling Pathways?
Introduction: Ketamine is a commonly used anesthetic agent during surgical operations. Numerous clinical trials have indicated that neuronal apoptosis may be induced by repeated ketamine exposure during the period of brain development.Aim of the Work: The current study aimed to evaluate the…
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Use of mycorrhizal fungi and phosphorus fertilization to improve the yield of onion (Allium cepa L.) plant
Improving the economical yield of commonly cultivated crops is one of the most pressing social and scientific issues in modern agriculture. This paper was conducted to investigate the bio-efficacy of arbuscular mycorrhizal fungi (AMF) in improving phosphorous (P) utilization and increasing the…
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A new endophyte Monascus ruber SRZ112 as an efficient production platform of natural pigments using agro-industrial wastes
A number of biopigment applications in various industrial sectors are gaining importance due to the growing consumer interest in their natural origin. Thus, this work was conducted to valorize endophytic fungi as an efficient production platform for natural pigments. A promising strain isolated…
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Histological and Morphometric Study on the Effect of Triiodothyronine on the Histological Changes of Gastrocnemius Muscle of Aged Male Albino Rat Associated with Thyroid Dysfunction
Introduction: Aging associated with thyroid dysfunction induces many microstructural changes in the skeletal muscle fibers. These were caused by low T3, hyperglycemia and hyperinsulinemia. Triiodothyronine (T3) supplementation alleviates hyperglycemia and ameliorates insulin insensitivity of senile…
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Otoacoustic emissions value in patients with idiopathic sudden sensorineural hearing loss
OBJECTIVES: This study aimed to determine the prognostic value of otoacoustic emissions (OAEs) in idiopathic sudden sensorineural hearing loss patients. METHODS: The study included 30 subjects with unilateral idiopathic sudden sensorineural hearing loss (ISSNHL). Each patient was evaluated four…