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In the lifetime process in some systems, most data cannot belong to one single population. In fact, it can represent several subpopulations. In such a case, the known distribution cannot be used to model data. Instead, a mixture of distribution is used to modulate the data and classify them into several subgroups. The mixture of Rayleigh distribution is best to be used with the lifetime process. This paper aims to infer model parameters by the expectation-maximization (EM) algorithm through the maximum likelihood function. The technique is applied to simulated data by following several scenarios. The accuracy of estimation has been examined by the average mean square error (AMSE) and the average classification success rate (ACSR). T

Exploring the B-Spline Transform for Estimating Lévy Process Parameters: Applications in Finance and Biomodeling Exploring the B-Spline Transform for Estimating Lévy Process Parameters: Applications in Finance and Biomodeling Letters in Biomathematics · Jul 7, 2025Letters in Biomathematics · Jul 7, 2025 Show publication This paper, presents the application of the B-spline transform as an effective and precise technique for estimating key parameters i.e., drift, volatility, and jump intensity for Lévy processes. Lévy processes are powerful tools for representing phenomena with continuous trends with abrupt changes. The proposed approach is validated through a simulated biological case study on animal migration in which movements are mo

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Dictyostelium discoideum amoeba is a powerful system to study gene function through genetic and functional analysis. Paracaspase (Pcp) is a caspase-like protein that has recently identified in D. discoideum. Study paracaspase molecular function in Dictyostelium will provide insight into its cellular role in more complex organisms and the possibility to use it as a drug target against the parasitic amoeba. In this study, pcp was tagged with Green Fluorescent Protein (GFP) and over-expressed in the cell. The knockout version of pcp (pcp-) was also investigated. In the course of our examination, it was observed that cells overexpress Pcp was unable to complete the developmental process, leading us to examine its role in development. Those c

The main objective of the paper is to study the possibility of erecting 2 MW wind turbine in the south of Iraq (Barjisiah site) by utilizing WAsP model. Wind potential and output predicted the power of WT at a supposed site was calculated. The results for proposed WT showed the WT has a weak performance due to its high capacity and low potential of wind speeds at this site. So, the WT will provide power for a limited time during the year due to its operating at the zone under the rated wind speed.

     Rutba area is located in Al-Anbar Governorate - West of Iraq. Hydrogeological investigation calculation of Mulussa aquifer between Rutba and Dhabaa is carried out. The groundwater moves in directions of (NE, E and SE) influenced by depletion process in the amount of hydraulic gradient ranged between (0.0000416 - 0.008036). The groundwater flux (V) and groundwater pore velocity (U) are reached (0.00451) m/day and (25.02) m/day, respectively.  Mulussa aquifer is carbonate beds, where represents confined aquifer conditions. The values of transmissivity, permeability and storage coefficient are ranged between (0.507 – 250) m²/day, (0.00547 - 3.05) m/day and (9.65 x 10^-5 - 2.64 x 10^-4

The effect of molding pressing force (1, 2, 3, 4, 5 and 6 tons ) on the properties of 80% kaolin + 20 % soda-lime glass (bottle glass) high voltage porcelain were investigated. The samples were prepared by powder processing technique of semi-dry uniaxial pressing and sintered at 1100oC. Both water absorption % and apparent porosity showed zero value at molding pressing force of 2-3 ton. The linear shrinkage (LS %) was determined by measuring the sample dimensions before and after sintering. The water absorption (WA), apparent porosity (AP) and apparent density (AD) were determined using the vacuum/boiling technique. Vicker’s micro-hardness was measured for the samples. The flexural strength (Rf) was measured by the diametrical compress

هدفت هذه الدراسة إلى التعرف على  طرق تعامل الأخصائيين الاجتماعيين العاملين في دار التربية الاجتماعية  مع الأحداث وتقييم هذا الدور وكذلك معرفة المعوقات التي تواجه الأخصائيين الاجتماعيين في الدار  وذلك بهدف تقديم بعض التوصيات التي يمكن أن تسهم في تفعيل الأنشطة والبرامج مما لها من أثر  في تغيير سلوك النزلاء من الأحداث واصلاحهم ليعودوا لمجتمعاتهم أسوياء، ولأغراض ذلك صممت استبانتين خاصة بموضوع الدر

      تركز الدراسة الحالية على اوجه التشابه والاختلاف بين اللغات الانكليزية والعربية والكردية  فيما يتعلق باسلوب النفي. كل من هذه اللغات الثلاثة  تنتمي الى عائلة مختلفة عن عائلة اللغة الاخرى وجميعها موجودة في بلد الباحثين (العراق). حيث تعتبر اللغة العربية اللغة الام في وسط و غرب و جنوب العراق. أما اللغة الكردية فهي اللغة الام في الجزء الشمالي المسمى اقليم كردستان العراق. تعد اللغة الانكليزية لغة اجنبية في ج

A new gravity and seismic survey along a profile length (70 Km) carried out at the area of exploration Block- 11 in Al- Najaf desert, southwest Iraq. The obtained gravity and seismic value compared with the previous available data that achieved by IPC and OEC for gravity and seismic data respectively. The difference between the new gravity profile and the old one is mainly in small anomaly not more than (14 %) that related to shallow depth levels and presents through power spectrum analysis. Previously, Ghulaissan-1 well which drilled in (1960) depend on a positive gravity and magnetic anomaly interpret, which is considered as an anticline structure in sub surface. It did not indicate any hydrocarbon shows after drilling, the integration

    يهدف البحث الحالي الى التعرف على ( العوامل الستة للسعادة لدى طلبة الجامعة  )  و تكونت العينة من (400) طالب و طالبة من طلبة الجامعة المستنصرية  في كل من التخصصين العلمي و الانساني للعام الدراسي (2019 – 2020) و بواقع (177) من التخصصات العلمية و (223) من التخصصات الانسانية و بواقع (202 ) من الذكور و (108) من الاناث. و لتحقيق ذلك تم اعتماد مقياس (2006 Rosemry A Abbott, al) المعرب من قبل (الجمال 2013) و الذي يتألف من (42) فقرة وفقا لنظ

Tropical illnesses caused by parasites proceed to cause socioeconomic devastation that reverberate worldwide protozoan parasites, like Leishmania. This parasite has an enormous public health problem in many countries. There is a growing requisite for new control methods for many of these illnesses due to the increasing drug resistance showed by the parasites and problems with drug poisonousness. In this study, fifty-five patients (burns and wounds) were collected from patients from Al-Yarmouk Hospital and Teaching Baghdad Hospital during the period from November, 2015 to January, 2016. Cultural and morphological characteristic examination, biochemical tests were conducted and confirmed the diagnosis by antibiotics sensitivity te

     Image content verification is to confirm the validity of the images, i.e. . To test if the image has experienced any alteration since it was made. Computerized watermarking has turned into a promising procedure for image content verification in light of its exceptional execution and capacity of altering identification.

     In this study, a new scheme for image verification reliant on two dimensional chaotic maps and Discrete Wavelet Transform (DWT) is introduced. Arnold transforms is first applied to Host image (H) for scrambling as a pretreatment stage, then the scrambled host image is partitioned into sub-blocks of size 2×2 in which a 2D DWT is utilized on  ea

This study, which was conducted in the city of Mosul, through collected 1200 samples from the stool of patients with diarrhea attending hospitals and private clinics for the period from the beginning of January 2019 to the end of December 2019, those whose ages ranged from less than a year-60 year, and for both sexes and by reality 700 samples stool for males and 500 samples stool for females. Samples were collected in clean, sterile, and sealed 40ml plastic bottles. Patient information is noted, name of the parasite, history, sex, age, address. The result showed that climate and temperature have a significant effect on increase the incidence of intestinal parasites through the direct effect on the increase in infection rate. This effect wa

لاورا بوتريسي

كاتبة ايطالية واستاذة جامعية في فن التأليف المسرحي وباحثة في مجال المسرح في جامعة بولونيا-قسم الفنون الجميلة قامت بعدد من الابحاث ومنها دراسات حول معسكر مالي, ودراسة مجتمعات اقنعة دوغان, وفي اثيوبيا في منطقة امهرة, عملت ايضا بحوث حول الجوانب المتعلقة بحيازة الطوائف . في عام 2012  قامت بنشر دراسه بعنوان : رحلة من خلال الاستحواذ في اثيوبيا اليو

In this study, two lenticular galaxies (NGC 2577, NGC 4310) have been chosen to study their morphological and photometric properties, by using The ^[1]IRAF ISOPHOTE ELLIPSE task with griz-Filters. Observations are obtained from the Sloan Digital Sky Survey (SDSS) which are reach now to the Data Release (DR14). The data reduction of all images (bias and flat field) have been done by SDSS pipeline. The surface photometric investigations were performed like the total magnitude, together with isophotal contour maps, Surface brightness profiles and a bulge/disk decomposition of the images of the galaxies, although the disk position angle, ellipt

Different coating layers of fluorescent agent (FCA) on the solar cells were used. An increase of 35% in the energy conversion efficiency of the solar cell have been obtained. This increase is attributed to the reduction ofthe reflected light, eflection spectra show low values at higher thickness which explained the increase ofthe conversion efficiency with increases of layer thickness.

Prostate cancer is one of the most common types of cancer in men. A total of 110 Iraqi Arab individuals were included in this study; 60 individuals of them had prostate cancer with increased levels of TPSA (patients group); their age range 52-90 years. They were referred for diagnosis and treatment to the National Al-Amal Hospital for oncology in Baghdad during the period from July 2017 to October 2017. While the other 50 apparently healthy subjects were the control group, their age range similar to patients group. Sera and blood samples were collected from all patients and controls than used to assess for the level of IL-18 and DNA extraction, respectively. The polymorphisms were analyzed using polymerase chain reaction-single specific

That the strength of the community and its cohesion and integrity of its structure and morals and the prevailing relations and the strength of its institutions depends all on the numbers of a generation of students saturation of the culture of the nation and proud of its heritage and maintained their customs and traditions and voluntarily accept its laws. Students are the future leaders who are more than capable of giving, they represent class they are educated conscious backbone of the nation and the subject of their hopes, and their wealth and energies warehouse actors produced, and one of the key pillars in achieving developments in all areas of life.

Based on the above, the current research aims to identify:

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By use the notions pre-g-closedness and pre-g-openness we have generalized a class of separation axioms in topological spaces. In particular, we presented in this paper new types of regulαrities, which we named ρg­regulαrity and Sρg­regulαrity. Many results and properties of both types have been investigated and have illustrated by examples.

إن هذا البحث مخصص لدراسة مشكلة توظيف الواقعيات في الخطاب الروسي، وتتعلق هذه المسألة بوظائف الواقعيات التي تمثل كلمات أو تعبيرات تنفرد بها لغة وثقافة معينة في سياق الاتصال. في الخطاب، تُستخدم  الواقعيات لتكوين الأجواء اللازمة، والمساهمة في تعبيرية النص، وتؤدي دورا مهما في إيصال ما يقصده المؤلف وتأثيره الانفعالي على المستمع. يمكن أن تشمل وظائف الواقعيات  في الخطاب وظائف عاطفية وإرادية ومرجعية وشعرية وتعبي

هدفت الدراسة الى تحديد دور مراكز الحماية في إمارة الشارقة للحد من العنف ضد المرأة، من حيث عدد من العوامل المتغيرة كدخل الأسرة، المستوى التعليمي، العمر، وطبيعة عمل الزوجين.  ولتحقيق ذلك تم إعداد استبانه تكونت من (9) فقرات تقيس دور مركز الحماية في تقديم الدعم والتوعية للحد من العنف الأسري، وأيضا التعرف على أكثر أنواع العنف التي يتم النظر فيها في المركز. شملت عينة الدراسة الاخصائيين الاجتماعيين لعدد (13) أخصائي ف

 تناول البحث دراسة المتغيرات الهيدرولوجية التي لها علاقة مباشرة بتقدير حجم الجريان السطحي في حوض وادي أبو الدبس والذي يقع في الشمال والشمال الشرقي من محافظة الانبار تبلغ مساحته الكلية (949) كم²، وان منطقة الدراسة تحتوي على خمسة احواض ثانوية متباينة من حيث مساحتها، اكبرها مساحة هو الحوض الأول وتبلغ مساحته (466) كم² وأصغرها مساحة هو الحوض الثاني وتبلغ مساحته (45) كم², اما بقية الاحواض فتبلغ مساحتها

This paper aims at investigating dramatic monologue in Frank Bidart’s poems. It discusses the way Bidart was affected by certain poets in terms of the implication of the dramatic monologue device and the power that affected his implementation and his application of this particular genre. Bidart proposes that a poet has a lot of inner consciousness. He receives various voices so he can visualize how to begin from varied places and keep a certain distance from the voice that expresses out of its sense, agony, or annoyance. Bidart has to examine the reasons for definite feelings at a particular point in time because one’s emotional state should not be considered for granted. However, a poet should keep some distance from the characters

В статье рассматриваются способы образования существительных женского рода, обозначающих лиц женского пола по национальной принадлежности в русском языке. В работе анализируются как способы образования данных существительных (словообразовательные модели, производящие основы и словообразовательные форманты), так и семантическая структура данных номинаций.

   شغلت مسألة توحيد التاجين الانكليزي والاسكتلندي أذهان ملوك انكلترا منذ عام 1603 وتكوين بناء سياسي مركزي، فبدأت أولى المحاولات الضعيفة من خلال تبادل الافكار بين الملك جيمس الاول والسياسيين من انكلترا واسكتلندا، لكن كانت الصعوبات كبيرة أمام ذلك الاتحاد، لأن كلتا المملكتين تتقاطعان في كافة النواحي السياسية والقانونية والاقتصادية والثقافية, تجددت محاولة الاتحاد في عهد الملك ويليم الثالث أيضاً

    Alzheimer’s Disease (AD) is the most prevailing type of dementia. The prevalence of AD is estimated to be around 5% after 65 years old and is staggering 30% for more than 85 years old in developed countries. AD destroys brain cells causing people to lose their memory, mental functions and ability to continue daily activities. The findings of this study are likely to aid specialists in their decision-making process by using patients’ Magnetic Resonance Imaging (MRI) to distinguish patients with AD from Normal Control (NC). Performance evolution was applied to 346 Magnetic Resonance images from the Alzheimer's Neuroimaging Initiative (ADNI) collection. The Deep Belief Network (DBN) classifier was used to fulfill classification f