The modulation of chaotic behavior in semiconductor laser with A.C coupling optoelectronic feedback has been numerically and experimentally reported. The experimental and numerical studying for the evaluation of chaos modulation behavior are considered in two conditions, the first condition, when the frequency of the external perturbation is varied, secondly, when the amplitude of this perturbation is changed. This dynamics of the laser output are analyzed by time series, FFT and bifurcation diagram.

En el contexto iraquí, el análisis de las dificultades léxicas de los estudiantes de ELE es fundamental para poder llevar a cabo prácticas que respondan dos necesidades concretas. Por un lado, ofrecer experiencias de aula que garanticen el desarrollo de competencias comunicativas que optimicen el uso adecuado de la lengua española (L2); por otro, atender a las exigencias que se hacen desde el PCIC y el MCER para tener unos parámetros claros de evaluación. Así las cosas, en este artículo se propone la caracterización de la competencia léxica como parte de las competencias lingüísticas desde la perspectiva del MCER, para señalar cuál es el alcance de su optimización para los estudiantes arabófonos en general y los ira

      In this paper, we define a new subclass of multivalent functions defined by the generalized integral operator with negative coefficients in the open unit disk U. We also give and study some interesting properties such as coefficient estimates, subordination theorems and integral means inequalities by using the famous Littlewood's subordination theorem. Finally, we conclude a type of inequalities that is upper bound and lower bound for topology multivalent functions of all analytic functions.  

      ممّا لاشك فيه َّأن اللغة تمثل ظاهرة اجتماعية، تتأثر بنحوٍ دائم ومستمر  بالتغييرات والتحولات التي تطرأ على المجتمع، سواء كانت سياسية أم اجتماعية أم اقتصادية أم دينية، وبدورها تؤثر في الخطاب الكلاميّ الذي يعدُّ الفنون الدعائية الصحفية جزءًا منه, وبما أنَّ اللغة ظاهرة اجتماعية، حيث تعبر طبيعتها تلك عن أهم سماتها الداخلية، فهي عادة تكون مندمجة بمادة واحدة، لانفصل عن المجتمع، كما أكد تلك ال

يعد أداء المعلم أحد القضايا المثيرة للجدل في المنظمة. تلعب القيادة التحويلية المستدامة وأبعادها دورا كبيرا في تغيير طبيعة أداء المعلم في المنظمة. في هذه الدراسة تمت مناقشة ودراسة أبعاد القيادة التحويلية المستدامة من خلال تحليل شبكات التواصل الاجتماعي كأداة لتحليل وفهم النتائج. تم جمع البيانات وشارك 30 شخصا في الاستبيان. المنظمات هي قطاعات تعليمية وهي 3 منظمات وذكرت كرموز في الدراسة. توضح هذه الدراسة أن كلا م

     The easternmost Mediterranean Basin is a candidate to be one of the most important hydrocarbon regions in the world, especially after significant gas discoveries in Levantine Basin in 2009. Offshore Syria is one of the easternmost Mediterranean areas which is still an unexplored virgin area. The seismic interpretation results of the study area showed encouraging evidences of considerable hydrocarbon accumulations within different sedimentary successions, which are Direct Hydrocarbon Indicators (DHIs). Indicators such as reflectivity anomalies (flat spots and dim spots) and polarity reversal were found within significant structural highs of Tertiary or/Late Cretaceous and Early Jurassic successions. Also, gas chim

Lung cancer, similar to other cancer types, results from genetic changes. However, it is considered as more threatening due to the spread of the smoking habit, a major risk factor of the disease. Scientists have been collecting and analyzing the biological data for a long time, in attempts to find methods to predict cancer before it occurs. Analysis of these data requires the use of artificial intelligence algorithms and neural network approaches. In this paper, one of the deep neural networks was used, that is the enhancer Deep Belief Network (DBN), which is constructed from two Restricted Boltzmann Machines (RBM). The visible nodes for the first RBM are 13 nodes and 8 nodes in each hidden layer for the two RBMs. The enhancer DBN was tr

Background: periodontitis is a multifactorial oral inflammatory disease characterized by the gradual loss of bone and eventual tooth loss. It starts with microbes and is then influenced by the environment. A diverse family of host defense major compounds known as antimicrobial peptides react quickly to combat microbial invasion and challenge. These little cationic peptides are crucial for the development of innate immunity. The goal of this study was to evaluate the blood levels of healthy individuals and patients with periodontitis for cathelicidins and human beta-defensin-1. In this case-control study, 35 healthy volunteers (matched exactly by age and sex to the patients) and 50 periodontitis patients (aged 20 to 59) participated. In t

تناولت في بحثي الموسوم: ((مَسَائِل مُختَارَة مِن تَرجِيحَاتِ الإِمَامِ الوُلوَالجِيّ فِي السَّفَرِ وَالجُمُعَةِ مِن كِتَابِهِ الفَتَاوَى الوُلوَالجِيَّة / دِرَاسَةٌ فِقهِيَّةٌ مُقَارَنَةٌ )) دراسة أحد علماء المذهب الحنفي الإمام عبد الرشيد بن أبي حنفية بن عبد الرزاق بن عبد الله، ظهير الدين الولوالجي (ت540هـ)، حيث عرض كثيرًا من كتب الحنفية الفقهية وآرائهم، واستحضر آراء علماء المذهب مع تعرضه لبعض آراء المذاهب

المستخلص :

       هدف البحث الى تشخيص مستوى ادراك واستجابة العينة المبحوثة لمفهوم القيادة المستنيرة والتراصف الاستراتيجي، فضلاً عن قياس مدى قوة وضعف علاقات الارتباط والتأثير بين المتغير المستقل القيادة المستنيرة بأبعادها المتمثلة بــ ( دور المطور، دور المغير، دور الرؤيوي، دور المتصل) والمتغير التابع التراصف الأستراتيجي بأبعاده المتمثله بــ ( التراصف الثقافي، التراصف الهيكلي ،

Today, SARS is a viral infection of the respiratory system that causes damage to the alveoli. The virus that causes severe acute respiratory syndrome belongs to the family of coronaviruses, commonly known as COVID, which is the same family of viruses that cause common colds. The increasing use of artificial intelligence (AI) and machine learning (ML) nowadays provides excellent opportunities to support and improve medical services in societies. In this paper, a developing model of deep learning (DL) is designed and implemented to classify SARS-CoV-2 disease images into two classes: COVID and non-COVID, with an accuracy of 99%. From a performance and accuracy perspective, the artificial convolutional neural network (CNN)-based detection m

هدفت الدراسة إلى التعرف على إدارة الحكمة والازدهار التنظيمي وفاعلية القرارات الاستراتيجية لدى اعضاء مجالس كليات التربية البدنية وعلوم الرياضة في جامعات العراق ، والتعرف على العلاقة بين ادارة الحكمة والازدهار التنظيمي وفاعلية القرارات الاستراتيجية لدى اعضاء مجالس كليات التربية البدنية وعلوم الرياضة في جامعات العراق ، التعرف على الفروق وفقا لمتغير اللقب العلمي (استاذ- استاذ مساعد) وسنوات الخدمة لأعضاء مجا

     The Kumait oil field is located in the Maysan Governorate southeastern Iraq, which was studied and interpreted by using 2D and 3D seismic data provided by the Oil Exploration Company using Petrel software. The study concerned the Mishrif Formation belongs to the Cretaceous Age. The reflector was detected based on synthetic seismograms and well logs for Kt-1 well. Structural maps (two-way time, velocity, and depth) were derived from seismic reflection interpretations to show several structural features, such as four isolated irregular enclosures representing the Kumait structure plunging NW-SE and demonstrating that the Kumait oil field is influenced by the Najd fault system trending NW-SE. The stratigraphic interpretation used t

A disease of the reproductive system known as infertility is characterized by a clinical pregnancy that cannot be obtained after twelve months or longer of unprotected, ordered sexual copulation. Infertility disorder has impacted the reproductive system when a clinical pregnancy cannot be obtained after twelve months or more of unprotected, ordered sexual interaction. The following
investigation was conducted to examine the gene expression levels in Iraqi patients with azoospermia, 150 human blood samples were collected from different regions in Baghdad governorate include (private medicals Labs and the high institute for infertility diagnosis assisted reproductive techniques and Kamal Al- Samara'ay IVF Hospital). The control group

     The sol-gel route is used to prepare samarium (Sm⁺³) ions doped in silica monoliths as a function of active ion concentrations up to 0.0178%. The spectroscopic activity of Sm⁺³ ions doped-silica matrices is investigated using UV- Visible spectroscopy and photoluminescence spectroscopy. ⁴G_5/2 emissions are observed from a minority of isolated Sm⁺³ ions within the pores structure of silica matrix, UV-Vis spectra reveals absorption peaks due to Sm⁺³ active centers. X-ray diffraction and FTIR results support the distribution of such ions in these porous. Analysis indicates that at high doping levels, most ions reside in clusters and ⁴G

In this paper, a new proper generalization of small monoform modules, namely Z-Small monoform modules is introduced and studied. An R-module C is called Z-small monoform module (ZSM module; for short), if every non-zero partial endomorphism of C has Z-small kernel.

This research seeks to clarify the regulatory and educational role of the regulatory and educational institutions in reducing the phenomenon of financial and administrative corruption as a dangerous phenomenon of the communities, as it touched search kinds of financial and administrative corruption and the causes and effects, as well as to the role of educational institutions in reducing this phenomenon, and finally between experiments some SAIs and accounting Arab and foreign countries on how to reduce the phenomenon of financial and administrative corruption.The research aims to several targets which shed light on the role of educational and supervisory institutions in reducing corruption, a statement origins and evolution of and justi

Research seeks to clarify the role of insurance companies to make great efforts for the success of the operation promotional products and to check it out for, there should be questions selling the company offers to salesmen producers and the latter projecting on the ground to serve customers and deal with them in style to earn satisfaction with.

        The method was used questionnaire and distributed through selected sample included producers in the company and the other sample Staff Planning and marketing researcher used the style gather the necessary information and subjected to analysis using statistical methods arithmetic, standard deviation and concluded search for a set of results which

في هذا البحث تم فرض تعديلين لخوارزمية شبه نيوتن الطيفية من النوع BFGS. في إحدى الخوارزميات، المسماة  SQN^EI  يتم استخدام معلمة طيفية معينة في احدى خطوات الخوارزمية BFGS تختلف عن جميع الخوارزميات المعروضة. اما الخوارزمية الثانية  SQN^Ev-Iv  تقدم مكان جديد و قيمة جديدة لمعلمة طيفية. في كلا الطرقتين تستخدم المعلمات في اتجاه البحث لخوازمية شبه نيوتن بعد تحديث مصفوفة Hessian  التقريبية.  وقد تم تبيان فعالية ا

في هذه المقالة ، يتم فحص تأثير متغير الدوران والمتغيرات الأخرى على التدفق التمعجي لسائل Powell-Eyring في قناة غير متماثلة مائلة مع مجال مغناطيسي مائل عبر وسط مسامي مع نقل الحرارة. يُفترض الطول الموجي الطويل وعدد رينولدز المنخفض ، حيث يتم استخدام نهج الاضطراب لحل المعادلات الحاكمة غير الخطية في نظام الإحداثيات الديكارتية لإنتاج حلول متسلسلة. يتم التعبير عن توزيعات السرعة وتدرجات الضغط رياضيًا. من خلال جمع الأرقام

ABSTRACT University college libraries are one of the most important information institutions for all researchers during their research and study life, they seeks to provide information sources such as; books, periodicals, theses, databases, Inquiry service and answering questions services in various disciplines to achieve its goals. In 2020, college libraries of all types stepped up to meet the needs of their users' as they responded to the impacts of COVID-19, also extended necessary lifelines to community members facing job losses, healthcare crises, and remote work and learning during an unprecedented and uncertain time. The research aim to identifying the services provided to the postgraduate students users at University of Baghdad coll

This research has been written as a fullfillment of the researchers
desire of joining the qurannic convoy servos each one from his own place and
this own field of specialization . she has found that the holly quraan is a
parctical field for theories and rules of old and modren phonetic studies also
she has becom a ware of the fact that the quraanic Important –making has
various aspects that neither can be a ware of nor can be vanished by the
courses of ages for science can flourish and reach tops to the extent they
don’t accept any new addition theories can be studied and given laws at last
except the quannice important – making which is new and discovered at
deferent times and places in spite of the shor

La formación lingüínstica del profesorado iraquí: evaluación de los niveles lingüísticos del curso 2011 / 2012

This research aims to numerous risks to the portfolio of the insurance company that arise from practicing the activity in general, and the risks arising from insurance contracts in particular, and what is the role of the company in the disclosure to help users (such as owners) to understand and concentration of risks in the financial reporting and identifying movable risks size to reinsurers that may affect the solvency of the portfolio and makes them at a given moment required to fulfill the obligations towards policyholders outweigh the financial capacity, which leads to stumble or bankruptcy.

So I sought this research is to identify the extent of the obligation to disclose the accounting for this risk and the extent of their i

Background: Aesthetic archwires are used to overcome the aesthetic problems of stainless steel wires but the color of the coating layer can be changed with time when exposed to oral environments. The aim of this study was to evaluate the degree of color change of different aesthetic archwires from different companies under different coloring solutions. Materials and Methods: One hundred fifty samples of coated archwires from three companies (Highland, G&H and Dany) were immersed in 5 solutions (artificial saliva, turmeric, tea, coffee and Miranda) to evaluate the degree of color changes after 7, 14 and 21 days using visible spectrophotometer. Data were collected and analyzed using one way ANOVA and post hoc Tukey’s tests. Resu