The present work aimed to study the SiO2μPs, and NPs effect on the biodegradability of St/PVA blends. The samples were prepared by casting method as PVA, St/PVA blends with different concentrations (30, 40, 50, and 60 %). FTIR test was carried out for the samples preparation. The results proved some changes which might be related to changing in crystallinity of St/PVA matrix as well as physical incorporation of SiO2 μPs, and NPs addition. The enzymatic test and water uptake results proved that increase in weight loss with increases of starch ratio. The lowest weight loss was PVA; the highest weight loss is 60% St/PVA whereas the lowest weight loss is 30%St/PVA for blends involved. SiO2μPs (753.7 nm), and NPs (263.1 nm) were added at d

Background:: Infertility is a very common condition affecting approximately 13-14% of couples in the reproductive age. In general population; about 85% of couples have achieved conception within a year. Intrauterine insemination is one of the procedure which have a role in the treatment of infertile couple.Objectives:is to confirm that the use of ovulation induction in the course of intrauterine insemination elevates the pregnancy success rate.Method:This study had been conducted between December 2013 till December 2014 in AL-Elwiyah maternity hospital and AL-Samaraii hospital / Baghdad.On history and clinical examination; the chosen couple had the following criteria; primary infertility for more than one year, no previous IUI trials, hu

Background:-The Modified Alvarado Scoring System (MASS) has been reported to be a cheap and quick diagnostic tool in patients with acute appendicitis. However, differences in diagnostic accuracy have been observed if the scores were applied to various populations and clinical settings.
Objectives:- The purpose of this study was to evaluate the diagnostic value of Modified Alvarado Scoring System in patients with acute appendicitis in our setting.
Methods:-one hundre twenty eight patients ,were included in this study, admitted to Al-Kindy teaching hospital from June 2009 to June 2010. Patients’ age ranged from 8 to 56 years (21±10) they were divided into three groups; paediatrics, child bearing age females & adult males,. MAS

Astronomy image is regarded main source of information to discover outer space, therefore to know the basic contain for galaxy (Milky way), it was classified using Variable Precision Rough Sets technique to determine the different region within galaxy according different color in the image. From classified image we can determined the percentage for each class and then what is the percentage mean. In this technique a good classified image result and faster time required to done the classification process.

The aim of this experiment was to study the effect of replacing treated and untreated rice impurities with urea, with or without acetic acid on the digestibility and performance of Awassi lambs. Twenty-four Awassi male lambs, aged 3-4 months with an initial weight 25.08 ± 0.64kg were divided into six treatments in a 2×3 factorial experiment/ Completely Randomized Design. Experiment period was 56 days, 14/3/2022 to 9/5/2022, preceded by 10 days as an adaptation period. Individual feeding was conducted. All animals fed on three levels of rice impurities treated with urea (0, 50,100%) without acetic acid (T1, T2, T3) and with 1% acetic acid (T4, T5, T6) respectively. The results showed a highly increase (P<0.01) of dry matter a

ان اساس الوضوح القانوني يتعارض مع فكرة العدل الطبيعي, فمن العدل والانصاف ان يكون القانون واضحا دقيقا من السهل ادراكه, ويعد هذا المبدأ اليوم من اهم عناصر اليقين القانوني فمن خلاله يتحقق المراد من التشريع ويأمن الافراد على حقوقهم ويخضعوا الى الالتزامات  الملقاة على عاتقهم , ويتحقق الوضوح من خلال الاهتمام بمسألة الصياغة القانونية وايكالها الى  المختصين, بهدف الوصول إلى تطبيق دولة القانون والحكم الرشيد و

تناول هذا البحث مسألة الالتزام القانوني المترتب على المدين بتقديم طلب إشهار إعساره عند تحقق شروطه وفق التشريع الأردني، وكذلك الجزاء المترتب على تخلف المدين عن القيام بهذا الالتزام وفق ذات التشريع.

وقد اشتملت الدراسة على إشكاليات متعددة يثيرها التنظيم القانوني لطلب إشهار الإعسار والجزاء المترتب عليه؛ لعل أهمها التنظيم القانوني لشروط تقديم طلب الإشهار خلال مدة معينة، والتكييف القانوني لتلك المدة، وسل

Construction projects contain many problems that can occur during the execution. Each problem results from many causes. Fault tree analysis (FTA) technique is a graphical model for analyzing causes of a problem (or undesired event) using logic gates to describe combinations of individual faults that can create an undesired event. Each level of the tree lists the lower level events that are necessary to cause the event shown in the level above it. The assessment process of a problem with FTA technique can be divided into two types: qualitative and quantitative assessment. As a case study to apply FTA technique in construction field, the researcher studied a building in Baghdad that had punching shear problem to analyze the causes lead to

الخلفية: مصطلح الناسور العصعصي يشير إلى حالة موجودة في منطقة الشق الولادي فوق العصعص. يحتوي الناسور العصعصي (الشعري) عادة على الشعر والأوساخ والأنسجة الحبيبية غير الصحية. يسبب الناسوؤ العصعصي معاناة شديدة ، وفي الغالب تحدث عدوى واخماج فيه، مما يؤدي إلى تسرب القيح ذو رائحة كريهة. معدل الإصابة بين الذكور2.2 - 4 مرات أعلى منها بين الإناث. تتميز المرحلة الحادة بوجود خراج عجزي، في حين خلال المرحلة المزمنة ي

The objective of the current research is to identify the effective of the suggested instructional design that based on the teaching strategy for understanding in achievement for students(girls) of mathematics in the fifth grads secondary school. To achieve the research goal, the empirical research method is depended. In this method a realistic empirical design pre-test of two equivalent sets to determine the students’ grade is used. The following zero hypotheses is formulated “There is no statistical difference for the faction at 0.05 between the mean grad for the students of the empirical group who studied the subject using the Instructional design based on the teaching strategy for understanding and those who studied the same subje

The objective of this research work is to evaluate the quality of central concrete plant of Al-Rasheed Company by using Six Sigma approach which is a measure of quality that strives for near elimination of defects using the statistical methods to improve outputs that are critical to customers. The fundamental objective of Six Sigma methodology is the implementation of a measurement-based strategy that focuses on process improvement and variation reduction to reach delighting customers, and then suggesting an improvement system to improve the production of concrete in Al-Rasheed State Contracting Construction Company.
A field survey includes two parts (open and close questionnaire) that aimed to get the data and information required f

This paper deals with the dynamics and stability behavior of a welded pipe containing flowing
fluid having a small harmonic component superposed. The equation of motion was derived to
represent the motion of a welded pipe conveying a pulsatile flow using a tensioned Euler- Bernoulli
beam theory. The finite element analysis was used to simulate the harmonic motion of a welded pipe
conveying fluid. It was shown that welded pipes with clamped-clamped and clamped-pinned supports
are subject to a multitude of parametric instabilities in all their modes. Stability maps are presented for
parametric instabilities of welded pipe with clamped-clamped and clamped-pinned ends. It is found
that the extent of the instability regio

The behaviour of batter piles under inclined compressive loads is of considerable importance,yet, not enough information is available in literature on the subject. The tests canied out in this paper were performed on a single inclined pile under various load inclinations in sand. The results indicate that the highest ultimate compressive load for vertical pile occurs at (30) load inclination. At small load inclinations, a positive batter pile has greater ultimate compressive load than that of a negative batter pile. The trend changes at higher Ioad inclinations. The slip surface analysis is recognised to be too complicated to have a definite
solution.

The superhcater zone of the boiler is the convective heat transfer region of the boiler, that is the heat in this region mostly transferred by the convection between the flew gases outside and steam inside tubes. The factors that effected the heat transfer rate and heat transfer coefficient in the Mosiab power station boiler (980000kgihr capacity under pressure of 175bar) at its superlieater is studied here. The super heater is divided into two parts, primary and secondary super heater. Each part is
divided into many zones depending on the pipe size and material. The effect of boiler load mass flow rate of steam on the heat transfer rate, heat transfer coefficient, steam temperature is studied. It is concluded that as the load on the

The aim of the study is to reveal the effect of the constructivist learning Model on the achievement and reflective thinking of the fifth grade literary Preparatory students in History subject. A random sample was chosen which consisted of 64 students divided into experimental and control groups, each group consisted of 32 students. The experimental group was taught via the constructivist learning model, and the control group was taught via the traditional method. The experiment was lasted for Eight weeks, each week taught two lessons. The researcher adopted the experimental design with partial control. The two groups were equalized statistically. The researcher used two instruments, the achievement test and the reflective thinking test.

The current research aims to identify the effect of the Bransford and Stein model on the achievement of fifth-grade literary students for geography and their reflective thinking. To achieve the objective of the research, the following two null hypotheses were formulated:

• There is no statistically significant difference at the significance level (0.05) between the average scores of the experimental group students who studied geography using the Bransford and Stein model and the average scores of the control group students who studied the same subject in the usual way in the achievement test. 2- There is no statistically significant difference at the significance level (0.05) between the average scores of the experimental gr

An experimental and theoretical analysis was conducted for simulation of open circuit cross flow heat
exchanger dynamics during flow reduction transient in their secondary loops. Finite difference
mathematical model was prepared to cover the heat transfer mechanism between the hot water in the
primary circuit and the cold water in the secondary circuit during transient course. This model takes under
consideration the effect of water heat up in the secondary circuit due to step reduction of its flow on the
physical and thermal properties linked to the parameters that are used for calculation of heat transfer
coefficients on both sides of their tubes. Computer program was prepared for calculation purposes which
cover a

The expansion in water projects implementations in Turkey and Syria becomes of great concern to the workers in the field of water resources management in Iraq. Such expansion with the absence of bi-lateral agreement between the three riparian countries of Tigris and Euphrates Rivers; Turkey, Syria and Iraq, is expected to lead to a substantially reduction of water inflow to the territories of Iraq. Accordingly, this study consists of two parts: first part is aiming to study the changes of the water inflow to the territory of Iraq, at Turkey and Syria borders, from 1953 to 2009; the results indicated that the annual mean inflow in Tigris River was decreased from 677 m³/sec to 526 m³/sec, after operating Turkey reserv

• التوجه نحو مساعدة الاخرين 2 - دلالة الفروق في التوجه نحو مساعدة الاخرين تبعا لمتغير

(الجامعة )، ومتغير (المرحلة الدراسية ) لدى طالبات قسم رياض الأطفال.

وتحقيقا لأهداف البحث قامت الباحثتان بإعداد مقياس التوجه نحو مساعدة الاخرين ، وتم استخراج الصدق الظاهري ، واستخراج القوة التمييزية، وتم التحقق من ثبات أداة البحث بطريقة الفا - كرونباخ إذ بلغ معامل الثبات (94 .0) وكان عدد فقرات مقياس التوجه نحو مساع

The loose sand is subject to large settlement when it is exposed to high stresses. This settlement is due to the nature of the high drainage of sand, which displays foundations and constructions to a large danger. The densification of loose sandy soils is required to provide sufficient bearing capacity for the structures. Thus soil stabilization is used to avoid failure in the facilities. Traditional methods of stabilized sandy soil such as fly ash, bituminous, and cement often require an extended curing period. The use of polymers to stabilize sandy soils is more extensive nowadays because it does not require a long curing time in addition to being chemically stable. In this study, the effect of adding different percent

Oily carwash wastewater is a high organic and chemical wastewater. This paper targeted to investigate a treatment to decrease the water consumption and contaminants in car-washing stations. Electrocoagulation combined with ultrasonic energy (Sono-Electrocoagulation) was suggested so that the carwash wastewater is treated to be reused. The effect of both the voltage and time of treatment on the removal of COD, turbidity, conductivity, and total dissolved solids (TDS) were studied at constant initial pH 7 and electrode distance 2 cm. The results showed the best results of removal COD, turbidity, TDS, and reduce electrical conductivity is when the voltage was 30 V and a treatment time of 90 minutes.

  <

Roller Compacted Concrete (RCC) is a technology characterized mainly by the use of rollers for compaction; this technology achieves significant time and cost savings in the construction of dams and roads. The primary scope of this research is to study the durability and performance of roller compacted concrete that was constructed in the laboratory using roller compactor manufactured in local market. A total of (60) slab specimen of (38×38×10) cm was constructed using the roller device, cured for 28 days, then 180 sawed cubes and 180 beams are obtained from RCC slab. Then, the specimens are subjected to 60 cycles of freezing and thawing, sulfate attack test and wetting and drying. The degree of effect of the type of coarse aggregate (c

يتعامل هذا البحث مع تقييم النشاط المضاد للسرطان لتوليف Ag/Au NPs بواسطة نظام هجين يجمع بين تقنية الليزروالبلازما النفاثة. تمت دراسة تأثير NPs على تثبيط نمو خلايا سرطان الثدي وخط الخلايا الطبيعية. أولاً، تم تحضير الجسيمات النانوية الفضية باستخدام ليزر Nd:YAG بطول موجي 1064 نانومتر، وتردد 6 هرتز، وطاقة 1000 مللي جول، وعدد من النبضات 558 . الخطوة الثانية، نأخذ نسبًا مختلفة بين Ag NPs وأملاح الذهب على النحو التالي: ( 1:9 و 2:8 و 3:7 )،

The Frequency-hopping Spread Spectrum (FHSS) systems and techniques are using in military and civilianradar recently and in the communication system for securing the information on wireless communications link channels, for example in the Wi-Fi 8.02.X IEEE using multiple number bandwidth and frequencies in the wireless channel in order to hopping on them for increasing the security level during the broadcast, but nowadays FHSS problem, which is, any Smart Software Defined Radio (S-SDR) can easily detect a wireless signal at the transmitter and the receiver for the hopping sequence in both of these, then duplicate this sequence in order to hack the signal on both transmitter and receiver messages using the order of the se

Reverse osmosis technique was used for the treatment of industrial waste water. Ions like calcium, magnesium, sodium, sulfate, and nitrate were found in the waste water of the General Company of Vegetable Oil with high concentrations which must be treated for reuse. Feed water containing the above mentioned ions was fed to the RO unit at feed flow rates (0.4 and 0.8 lit/min) and different operating pressure (2-4bar) .It is concluded that increasing operating pressure and feed flow rate improved the separation by a decrease in the concentration of ions in the product. High rejection was obtained for all ions present in feed water, ranging from (63.8-97.6%). Rejection of TDS was 87% when the concentration of TDS was reduced from 1192 to 15

في مرحلة مابعد عام 2003 شهد العراق تحولات جوهرية على كافة الاصعدة سواء السياسية او الاقتصادية والقانونية , وفي اطار البحث في الصناعة النفطية فأن هذه المرحلة تطلبت اعادة هيكلية لهذا القطاع الذي يساهم في تكوين الدخل القومي للعراق بنسبة تفوق 95%  منذ اكتشافه ولنهاية سنة 2017 .

ان ماشهده العراق للمدة مابعد عام 2003 استلزم اعادة هيكلة لهذا القطاع المهم في الاقتصاد العراقي وان تلك الهيكلة تتطلب امكانيات فنية ومالي

A good performance of reinforced concrete structures is ensured by the bond between steel and concrete, which makes the materials work together, forming a part of solidarity. The behavior of the bond between the reinforcing bar and the surrounding concrete is significant to evaluate the cracking control in serviceability limit state and load capacity in the ultimate limit state. In this investigation, the bond stresses between reinforcing bar and reactive powder concrete (RPC) was considered to compare it with that of normal strength concrete (NSC). The push-out test with short embedment length is considered in this study to evaluate the bond strength, bond stress-slip relationship, and bond stress-crack width relationsh

The current study aims to investigate the second cycle students’ motives for using electronic games in Oman. The sample consisted of (570) students, (346 males and 224 females). The participants completed an open-ended question which was analyzed based on ground theory. The results showed that (46.820%) of the males and (77.678) of the females played electronic games for pleasure, entertainment, and fun. This first category of motivation got the highest percentage of frequency (58.947%). The motive to become a hacker, a popular YouTuber got the lowest percentage (2.280%). Other students’ motives toward playing electronic games included: filling the leisure time, overcoming boredom, feeling adventures, getting science fiction and chal

Childhood is characterized by ahigh privacy in the life of the child overall educational institutions in the world. Based on this specificity, modern education begins with a holistic vision of the child through all developmental aspects (moral, religious, emotional, social, linguistic, physical, health, and mental). This integration could be achieved through taking into consideration the needs and rights of children and developing curricula that consider these needs and capacities to provide opportunities for developing and supporting the developmental aspects of the child. The contemporary technological developments in the field of computer and the Internet have brought with it new forms, ideas, and problems for children in recent years