Drug hypersensitivity involves the activation of T cells in an HLA allele–restricted manner. Because the majority of individuals who carry HLA risk alleles do not develop hypersensitivity, other parameters must control development of the drug-specific T cell response. Thus, we have used a T cell–priming assay and nitroso sulfamethoxazole (SMX-NO) as a model Ag to investigate the activation of specific TCR Vβ subtypes, the impact of programmed death -1 (PD-1), CTL-associated protein 4 (CTLA4), and T cell Ig and mucin domain protein-3 (TIM-3) coinhibitory signaling on activation of naive and memory T cells, and the ability of regulatory T cells (Tregs) to prevent responses. An expa
Background: Currently there are four general approaches to correct refractive errors: refractive corneal surgery, crystalline lens surgery and implantation of an intraocular lens in anterior or posterior chamber. Aim: To evaluate the predictability, safety and stability of toric phakic implantable collamer lens implantation to correct moderate to high myopic astigmatism. Methods: Sixty eyes of 40 patients underwent implantation of a toric implantable collamer lens (V4c design) in the Eye Specialty Private Hospital, Baghdad, Iraq were studied. The mean spherical refraction was -11.32±3.17 diopter (D) with a range of -6.00 to -18.00 D and a mean cylinder of -2.61±1.16 with range of -1.00 to -5.50 D. The outcome measures that evaluat
... Show MoreThe extracting of personal sprite from the whole image faced many problems in separating the sprite edge from the unneeded parts, some image software try to automate this process, but usually they couldn't find the edge or have false result. In this paper, the authors have made an enhancement on the use of Canny edge detection to locate the sprite from the whole image by adding some enhancement steps by using MATLAB. Moreover, remove all the non-relevant information from the image by selecting only the sprite and place it in a transparent background. The results of comparing the Canny edge detection with the proposed method shows improvement in the edge detection.
Research was conducted to study the effect of proline and aspirin with 10 and 20 ppm on seed germination and seedling growth of Lycopersicon esculentumand the effect of surface growthof Fusarium oxysporum.The results showed that the proline and aspirin effected significantly to decreased percentage of seed germination, acceleration of germination, promoter indicator, elongation speed of radical and plumule and also the infection percentage of seed decay and surface growth of Fusarium oxysporumwas reduced significantly.
The present study examines the main points of differences in the subject of greetings between the English language and the Arabic language. From the review of the related literature on greetings in both languages, it is found that Arabic greeting formulas are more elaborate than the English greetings, because of the differences in the social customs and the Arabic traditions and the Arabic culture. It is also found that Arabic greetings carry a religious meaning basing on the Islamic principle of “the same or more so”, which might lead to untranslatable loopholes when rendered in English.
Our article seeks to understand how perceptions of social and societal responsibility of brands influence the process of consumer engagement. For this, we are interested in the specific expectations of consumers in terms of the social responsibility of the citizen brands they consume.
Our results indicate that a consumer perceives a brand as socially responsible if it assumes, in addition to its environmental and philanthropic responsibility, a health responsibility for the respect of the health of its consumers. Our results confirm the influence of social responsibility perceptions on consumer engagement with the brand and offer a new understanding of the relationship process at work.
The present study aims at examining quantitatively the morphometric characteristics of Iziana Valley basin that is located in the northern part of Iraq; particularly in south of Erbil Governorate. This basin is considered one of the small sub-basins where its valleys run on formations of the Triple and Quadrant Ages, which are represented by the Bay Hassan formations, and the sediments and mixed sediments of the cliffs, respectively. The area of the Iziana basin amounts to (36.39 km2) whereas the percentage of its rotation reaches (0.17); a low percentage, which indicates that the basin diverges from the circular to the rectangular shape. The value of the elongation ratio of the basin reaches (0.38) while the terrain rat
... Show MoreABSTRACT Background: Polycystic ovarian syndrome (PCOS) is one of the most important reproductive and endocrine disorders in women at reproductive age. It's associated with metabolic disorder, obesity, insulin resistance and oxidative stress chronic periodontitis and PCOS both of them associated with low chronic grade of inflammation. The prevalence of periodontal disease seems to be higher in women with PCOS. Superoxide dismutase enzyme (SOD) is an important circulating marker and protecting enzyme helping the body tissues to get rid of reactive oxygen species (ROS) that damage the tissue. Aim of the study: The aim of this study was to measure and compare the levels of (SOD) among group of chronic periodontitis patients with PCOS, group
... Show MoreThis investigation aims to determine whether it is feasible to use the limestone rocks found in the Al-Samawa stone quarry in southern Iraq as the stationary phase in column chromatography separation. Together with the chromatographic application, the physical and chemical characteristics of the rocks are examined. SiO2, SO4, PO4, NO3, and Cl are the negative ions, while Ca, Mg, Na, K, and Li are the positive ions. The limestone samples are characterized via chromatographic analysis. The results suggest that limestone samples could be used as an adsorbent material for chromatographic separation techniques. Additionally, samples from the Nasiriyah refinery's crude oil can be used to sep
... Show MoreHigh performance self-consolidating concrete HP-SCC is one of the most complex types of concrete which have the capacity to consolidated under its own weight, have excellent homogeneity and high durability. This study aims to focus on the possibility of using industrial by-products like Silica fumes SF in the preparation of HP-SCC enhanced with discrete steel fibers (DSF) and monofilament polypropylene fibers (PPF). From experimental results, it was found that using DSF with volume fraction of 0.50 %; a highly improvements were gained in the mechanical properties of HP-SCC. The compressive strength, splitting tensile strength, flexural strength and elastic modulus improved about 65.7 %, 70.5 %, 41.7 % and 80.3 % at 28 days age, respectively
... Show Moreان مسجد الكوفة يحتل مكانة خاصة من الجانب التاريخي والاثاري كونه من المساجد الاولى التي بنيت خارج الجزيرة العربية في الاسلام ، فضلا عما يمثله من مكانة روحية لكافة المسلمين في العالم بالوقت الحاضر ، وارتباطه بحوادث كبيرة شهدها التاريخ الاسلامي ، اضافة الى دوره الكبير والمتميز في تطور الحركة العلمية حيث كان لمسجد الكوفة دورا بارزا في التعليم كون المساجد في عصور مختلفة كانت مراكز للتعلم وطلب العلم ومثلت دور ال
... Show Moreاعتمدت حياة الانسان القديم، في المراحل الاولى من حياته، على الحجر (Kottak, 2006) فاستخدم بعض الادوات الحجرية للتغلب على البيئة الطبيعية، والوقاية من اي خطر محتمل، وتوفير احتياجاته اليومية (محمد، 2005) وتطور هذا الاستخدام ومر بعدة مراحل من العصور الحجرية، مثل العصر الحجري القديم، والعصر الحجري المتوسط، والعصر الحجري الحديث. وقام باستخدام الحجر في البناء وفي تحضير ادواته الحجرية مثل المدقة، والمجرشة، والمطحنة، وغي
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Cutting forces are important factors for determining machine serviceability and product quality. Factors such as speed feed, depth of cut and tool noise radius affect on surface roughness and cutting forces in turning operation. The artificial neural network model was used to predict cutting forces with related to inputs including cutting speed (m/min), feed rate (mm/rev), depth of cut (mm) and work piece hardness (Map). The outputs of the ANN model are the machined cutting force parameters, the neural network showed that all (outputs) of all components of the processing force cutting force FT (N), feed force FA (N) and radial force FR (N) perfect accordance with the experimental data. Twenty-five samp
... Show MoreThis study aims to measure and analyze the direct and indirect effects of the financial variables, namely (public spending, public revenues, internal debt, and external debt), on the non-oil productive sectors with and without bank credit as an intermediate variable, using quarterly data for the period (2004Q1–2021Q4), converted using Eviews 12. To measure the objective of the study, the path analysis method was used using IBM SPSS-AMOS. The study concluded that the direct and indirect effects of financial variables have a weak role in directing bank credit towards the productive sectors in Iraq, which amounted to (0.18), as a result of market risks or unstable expectations in the economy. In addition to the weak credit ratings of borr
... Show Moreيهدف البحث إلى تكوين صورة واقعية واضحة لحالة تدريس اللغة الانكليزية لغة أجنبية في المدارس الثانوية في العراق بعد تبني الطريقة التواصلية من قبل وزارة التربية في العام الدراسي (2002–2003) وذلك بكشف المشاكل السلبية التي تواجه هذه الطريقة في التطبيق العملي ، لغرض إيجاد الحلول أو التفكير بحلول مناسبة لها أو تذليلها لقد تم بحث ومناقشة دور كلاً من المدرس والطالب في هذه الطريقة وكيفية بناء المجاميع وا
... Show Moreفي مجال البحث في استثمار حقول الغاز فأن ذلك يستلزم ان نبحث ابتداءا في مركز الاطراف التعاقدية من حيث وسائل الضمان الممنوحه لها بموجب العقد والتي تشكل وسيلة الامان والدافع الى الدخول كأطراف رئيسية في المشروع الاستثماري. وبدورنا سنبحث الحد الادنى من الضمانات والتي تعد اهم الضمانات الممنوحة لكل من طرفي العقد وهما الطرف الوطني والمستثمر.
Although many technological improvements are occurring in power production worldwide, power plants in third world countries are still using old technologies that are causing thermal pollution to the water bodies. Power facilities that dump hot water into water bodies are damaging aquatic life. In the study, the impact of the Al Dora thermal power plant on a nearby stretch of Tigris River in Baghdad city was assessed by measuring the temperature of the disposed of hot water in various cross-sections of the selected stretch of Tigris River, including measuring the thermal mixing length. The measurements were conducted in winter, spring, and summer. For field measurements, it was found that the impact of recovery distances
... Show MoreThis paper has investigated experimentally the dynamic buckling behavior of AISI 303 stainless steel Aluminized and as received long columns. These columns, hot-dip aluminized and as received, are tested under dynamic buckling, 22 specimens, without aluminizing (type 1), and 50 specimens, with hot-dip aluminizing at different aluminizing conditions of dipping temperature and dipping time (type 2), are tested under dynamic compression loading and under dynamic combined loading (compression and bending) by using a rotating buckling test machine. The experimental results are compared with Perry Robertson interaction formula that used for long columns. Greenhill formula is used to get a mathematical model that descripts the buckling behavior
... Show MoreThe aim of this research , Principal component Is to find orthognal sets of vectors that maximize the variance of the projected dat, pca seeks a transformation nation of the data into another from of reference with as little error as possible, using fewer factors than the original datat. and find the connection among the student’s degrees through an applicative study on accountancy department for the afternoon studied who graduated in 2002- 2003 in Management and Economy- Baghdad University.
After taking their marks for the last year downward to the third year , second and first year far of the fail years with using of the model of artificial neural network and the statistical model (principle component), to compared the results b
Secure Shell (SSH) is a secure remote login program which can be used in place of regular telnet. It has become the default remote access method for administration of UNIX systems. It is very common for public Internet facing servers to experience attacks that attempt to brute force username and password combinations via SSH to gain access. This paper examines these attacks depending on SSH log file to find unsuccessful logins then blocks IP addresses of unsuccessful logins for a period of time that is decided by administrator and then send an e-mail to administrator to consider whether the addresses blocked belong to users failed to access or by an attacker, finally the administrator will block attacker's IP address forever. Some attack
... Show MoreThe OSPF cost is proportionally indicated the transmitting packet overhead through a certain interface and inversely proportional to the interface bandwidth. Thus, this cost may minimized by direct packet transmitting to the other side via various probable paths simultaneously. Logically, the minimum weight path is the optimum path. This paper propose a novel Fuzzy Artificial Neural Network to create Smart Routing Protocol Algorithm. Consequently, the Fuzzy Artificial Neural Network Overlap has been reduced from (0.883 ms) to (0.602 ms) at fuzzy membership 1.5 to 4.5 respectively. This indicated the transmission time is two-fold faster than the standard overlapping time (1.3 ms).
The Moroccan socio-economic context is more and more weakened by a dynamic of accelerated measures aimed at redressing the financial deficits of the state. The first emotionally impacted by this dynamic are parents and therefore their children who begin to live in a universe dominated by fluctuations and unforeseen events.
This article will therefore explore the emotional situation of Moroccan pupils at the beginning of schooling and identify their needs in this area, in order to initiate a dynamic of engineering emotional intelligence in primary school.
The study was carried out in 3 school groups in Casablanca on a mixed population of 160 pupils and was spread out over a month. The used tools comprised interviews with survey fill
يُعنى البحثُ بدراسة بعض المفردات القرآنيّة التي وردت بصيغ مختلفة في القرآءات القرآنيّة , وكيف ان هذا الإختلاف في الصيغة أدى إلى اختلاف في الدلالة الوظيفية لبعض منها فيما حافظ بعضها الآخر على دلالتها رغم اختلاف الصيغ موثق ذلك من كتب التفسير واللغة وكتب القرآءات .
عدً المؤرخون دراسة الجوانب الأقتصادية المتمثلة بالزراعة من خلال كتاب من الدراسات المهمة , وذلك من أجل معرفة هذه الجوانب ومقارنتها بالمصادر الأخرى , لذا انصبت الدراسة وموضوع بحثنا عن الزراعة في مصر من خلال كتاب (مسالك الابصار في ممالك الأمصار لابن فضل الله العمري المتوفى سنة (ت 749 ﻫ / 1348م), اذ تم تناول سيرته وحياته والمناصب التي تولاها ومؤلفاته , ومن ثم تناولت الدراسة موقع مصر الجغرافي
... Show MoreThe shortage in surface water quantities led to a shift in dependence on the groundwater as an alternative water source in southern parts of Iraq. The groundwater is decreasing in quantity and water quality is degrading due to different factors. Therefore, it is important to assess the groundwater quality of the Missan Governorate of the country by analyzing the physicochemical parameters and distinguishing the probable sources of contaminants in the area. The present study used water quality diagrams and statistical methods such as factor analysis and agglomerative cluster analysis to determine the sources of chemical ions in the forty-four groundwater samples collected from wells in the study area. In addition, the Water Quality Index (WQ
... Show MoreThe paper aims at making the Russian reader acquainted with the Iraqi Poet Badr Shakir as-Sayyab, and showing the effect of the village and the city in his soul, the theme which is reflected in his poetry. Therefore, the researcher has translated the verses pertaining to this topic from Arabic into Russian so as to make the Russian reader know the important phases that talk about the village and city. The researcher has concluded that the theme of place, village and city has occupied a good portion of As-Sayyab's poetry, and that he (the poet) hated the city and expressed his wrath against it, because he viewed the city as embodiment of money and the degeneration of man. As opposed to this, As-Sayyab he loved being a farmer, and was
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