تم في هذا البحث استخدام المحفز الجديد المصنع من تحميل دقائق البلاتين النانوية على سطح الصفائح النانوية للكرافين كمحفز ضوئي واختباره لدراسة التجزئة الضوئية لملوثات المياه وازالتها بشكل نهائي من مصادر المياه لما لها من تأثير سلبي على البيئة. حيث تم استخدام صبغة البروموفينول الأزرق كمثال على أحد الملوثات. في البدء تم التأكد من تحضير المحفز بالطريقة المستخدمة في طريقة العمل من خلال تشخيصه باستخدام عدد من ا

     Bimetallic Au –Pt catalysts supporting TiO2 were synthesised using two methods; sol immobilization and impregnation methods. The prepared catalyst underwent a thermal treatment process at 400◦ C, while the reduction reaction under the same condition was done and the obtained catalysts were identified with transmission electron microscopy (TEM) and energy-dispersive spectroscopy (EDS). It has been found that the prepared catalysts have a dimension around 2.5 nm and the particles have uniform orders leading to high dispersion of platinum molecules .The prepared catalysts have been examined as efficient photocatalysts to degrade the Crystal violet dye under UV-light. The optimum values of Bimetallic Au –Pt catalysts supp

n this work, the adsorption of crystal violet dye from aqueous solution on charcoal and rice husk has been investigated, where the impact of variable factors (contact time; the dosage of adsorbent, pH, temperature, and ionic strength) have been studied. It has been found that charcoal and rice husk have an appropriate adsorption limit with regards to the expulsion of crystal violet dye from fluid arrangements. The harmony adsorption is for all intents and purposes accomplished in 45 min for charcoal and 60 min for rice husk. The amount of crystal violet dye adsorbed (0.4 g of charcoal and 0.5 g of rice husk) increased with an increasing pH and the value of 11 is the best. The effect of temperature on the adsorption process was studied

Bedside clinical teaching is a fundamental part of the medical education that offers invaluable opportunities for the students to build and improve their clinical and communication skills. However, there is a growing concern about the increasing refusal of patients to participate in clinical sessions, especially in certain settings where there are sensitive cultural traditions and decreased trust in institutions.

The objective of this research is to know the economic feasibility of hydroponics technology by estimating the expected demand for green forage for the years 2021-2031 as well as Identify and analyze project data and information in a way that helps the investor make the appropriate investment decision in addition to preparing a detailed technical preliminary study for the cultivar barley project focusing on the commercial and financing aspects and the criteria that take into account the risks and uncertainties . that indicating the economic feasibility of the project to produce green forage using hydroponics technology. Cultured barley as a product falls within the blue ocean strategy. Accordingly, the research recommends the necess

يتضمن البحث دراسة لزوجة محاليل تحتوي على املاح كلوريد البوتاسيوم وبروميد البوتاسيوم في مزيج من الماء وداي مثيل سلفوكسايد 60% وزنا داي مثيل سلفوكسايد.وقد اجريت الدراسة بست درجات حرارية مختلفة ونوقشت امكانية في ضوء معادلة جونز- دول حيث اخذ بنظر الاعتبار الحجم الايوني والشحنة وشكل جزيئات المذاب.

تشكلت الحكومة اللبنانية برئاسة سعد الحريري في العام 2009 وتم اعلان ولادة الحكومة ال71 والتي ضمت ثلاثين وزيرا 15 وزيرا للأكثرية و10 وزراء للمعارضة و5 وزراء لرئيس الجمهورية وذلك من اجل الحفاظ على التوازنات في النظام السياسي اللبناني ولمنع هيمنة طرف على طرف اخر وضمان عدم تعطيل القوانين والقرارات دون موافقة الطرفين الاخرين اي تجسيد منطق الشراكة في الحكم

 رغم قصر عمرها اعتبرت هذه الحكومة محطة بارزة في تاريخ ا

يعتبر الحكم الجمهوري في العراق ، خاصةً في عهد الرئيسين عبد السلام عارف وعبد الرحمن عارف، مرحلة محورية في التاريخ السياسي للبلاد، اذ شهدت تحولات عميقة وصراعات على السلطة. وقد برزت في تلك الفترة أهمية وسائل الإعلام وتحديداً الإذاعة ، كأداة حاسمة في الصراع السياسي و أصبحت مسرحاً لتبادل البيانات الرسمية وإعلان التشكيلات الحكومية وإفشال المحاولات الانقلابية. يُظهر تحليل الأحداث التاريخية، مثل انقلاب عارف عبد

        كان  للظواهر الطبيعية الأثر الكبير في حياة الانسان بكل صنوفها، ولعبت دورا مؤثرا في صياغة افكاره، ففي المناطق منتظمة الظواهر نجد أن الانسان بكل جوانب حياته هادئ ومستقر فكريا، وافرزت فكرا دينيا، غلب عليه الاستمرار التاريخي (المعبودات التي قدست في مدد مبكرة استمرت مقدسة في العصور المتأخرة)، اما المناطق ذات التقلبات البيئية العنيفة او المتطرفة فقد كان الانسان فيها

لقد استبدلت كلمة مسجد بجامع في العمارة الإسلامية وبين عامة الناس كذلك، حتى اصبحنا لانسمع بكلمة مسجد الا قليلاً , ان ما هو مألوف بين الناس ان الجامع فيه منبر وتقام فيه صلاة الجمعة ، اما المسجد فليس فيه منبر ولا تقام فيه صلاة الجمعة ، والحقيقة ان النسبة الأكبر من المساجد فيها منابر و تقام فيها صلاة الجمعة لذلك اخذ يتردد اسم الجامع اكثر من اسم المسجد ، وكلما كان المسجد كبيراً و يرتاده اعداد كبيرة من المصلين ثبتت ت

السيب واحد من مجموعة من التلول الآثرية الواقعة في حوض سد حمرين والتي غمرت بالمياه بعد إكمال السد الإروائي، ويقع التل إلى الغرب من جلولاء على بعد 15 كم عنها تقريباً في سهل منبسط واسع ضمن منطقة تزدحم فيها المستوطنات القديمة، أكثر من بقية الأقسام الأخرى من الحوض؛ لخصوبته وقربه من نهر ديالى، ومن أبرز تلك المستوطنات تل بردان وحداد والضباعي وأرشيدة وعبد عمه وكرجية...الخ،

تم التنقيب في تل السيب من قبل بعثة عراقي

In despite of the expansion of using the dummy variables as a explanatory variables, but their using as a dependent variables is still limited, and the reason of that may be return to may problems when using dummy variables as a dependent variables. the study aimed to using the quality Response Models to Measuring Efficiency of cows farms by random sample including (19) farm from (Abi gherak district). The study estimating the transcendental logarithmic production function by using stochastic frontier Analysis (SFA) to interpret the relation between the return achieved from the cows farms as a dependent variables and each of labor and capital as an independent variables. the function indicates that increasing in labor by (100%) will

هدف البحث الحالي التعرف على مستوى مهارات التفكير المنظومي عند طالبات المرحلة المتوسطة في المدارس الثانوية والمتوسطة الحكومية النهارية التابعة الى مديرية تربية الكرخ الاولى للعام الدراسي (2024-2025)م، ولتحقيق هدف البحث قامت الباحثتان بإعداد مقياس مهارات التفكير المنظومي الذي يتكون من (37) عبارة موزعة على اربع مهارات وهي( ادراك العلاقات، تحليل المنظومات، تركيب المنظومات، تقويم المنظومات)، وتم تطبيقه على عينة ال

This study aimed to investigate the effect of different feeding levels of Alfalfa pellet ration (APR) on the productive performance and economic feasibility of Pekin ducks (Anas platyrhynchos). A total of 270 one-day-old ducklings were used. The birds at seven-day-old were assigned to 9 indoor pens of (1×2.2m) with outdoor and swimming pool (1×9.8m) and Each box represented an indoor replicate with 30 ducklings. The feeding program for Pekin Duck group treatments with alfalfa pellet rations (47% alfalfa) was used as a replacement to the basal diet at different percentages (0%, 25%, and 50%) for control (T0), first (T1) and second (T2) groups. The results showed no significant differences among treatments except accumul

This study was conducted at the College of Agriculture/ Diyala University/ Department of Animal production to determine the effect of replacing soybean meal with black soldier fly Hermetia illucens larvae meal on the growth performance and some biochemical blood parameters of common carp Cyprinus carpio L. One hundred and five fish with an average initial weight of 27.46±0.14 g was used in this experiment. They were randomly distributed into five treatments (3 replicate/treatment, 7 fish/ replicate). The first treatments (T1 control group) was fed with standard diet without black soldier fly larvae meal (0% BSFLM), black soldier fly larvae meal were substituted for soybean meal in other experimental groups at 25%, 50%,

The objective of this study was to investigate the effect of different feeding levels (0%, 25%, and 50%) of alfalfa pellet ration (APR) (47% alfalfa) on the main carcass cuts Physico-chemical traits of Pekin ducks (Anas platyrhynchos). A total of 270 one-day-old ducklings were used. The birds at seven-day-old were assigned to 9 indoor pens of (1×2.2m) with outdoor and swimming pool (1×9.8m). Each pen represented an indoor replicate with 30 ducklings. The feeding program for Pekin Duck group treatments with (APR) (47% alfalfa) was used as a replacement to the basal diet at different percentages (0%, 25%

In 2021-2022, studies on the biological lifestyle of Helicoverpa armigera (Hübner) and Spodoptera exigua (Hübner) were carried out in the pepper fields of Khoronk community, Armavir marz, Republic of Armenia. As a results show that the flight of the adults of Spodoptera exigua (Hübner) starts from the third ten days of May to the third ten days of June. Females lay eggs in piles on the upper and lower surfaces of pepper leaves. She lays 87-173 eggs in each pile. The newly hatched larvae feed on the leaves, causing them to ossify, while the mature larvae feed on the fruit, entering the fruit and feeding on the seeds. After finishing feeding, they descend into the ground and mate at a depth of 2-6 cm. Spodoptera exigua (Hübner)

A field experiment was carried out at the field of Agricultural Research and Experiments Station during the season 2021-2022 in order to study the  synergestic  effect and compatible between  Bacillus mucilaginosus and  Pseudomonas fluorescens when they added as combination on  potassium availability in the soil and on some plant growth characteristics and yield of Cucurbita pepo L. The experiment included four treatments B0, control , B1 addition of Bacillus mucilaginosus inoculum, B2 addition Pseudomonas fluorescens inoculum and B1 B2 addition of acombination of B1 and B2 inoculum .  The experiment was conducted by using randomised  complete blocks

This study was aimed to reveal the variation land surface temperature "LST" with some characteristics of desert soils in the Samawa desert at Al-Muthanna province, and to adopt solutions and treatments by identifying factors and indicators that have a direct impact to desertification, by  using geographic information systems mapping for spatial distribution  Some physical and chemical properties  were selected. . the result showed that there was a statistical relationship between LST and the physical characteristics, as it was revealed that the comparison of sand and silt content with the land surface temperature "LST" . There is a significant relationship with the determination coefficient of R²=0.6. Th

A field experiment was carried out to evaluate the effect of  four application methods of vermicompost tea (without application, ground application, foliar spray, combination of - ground application + foliar spray) , four types of biofertilization (without application, Stenotrophomonas maltophilia, Bacillus megaterium, the combination consisting of S. maltophilia + B. megagaterium), and two levels (0, 50%) of the fertilizer recommendation in the availability of some soil nutrients and on the growth and yield of squash using as randomized complete block design with three replications. The r

This study was aimed to investigate the occurrence of chloritization phenomenon in these soils. Three of these pedons were chosen in soil sites differing in their agricultural exploitation, which included: one pedon in an uncultivated soil at Daratw . While the second pedon was dug in soil exploited by the cultivation of  wheat at Bardarash . The third pedon was chosen as representative of a forest soil at Tawska Valley. Also, another two soil pedons were exposed to successive cycles of wet and dry, were chosen in Aski Kalak , and  Altun Kupri districts. All studied soils were examined by X-ray diffractions. Results showed the presence of Mica, Smectite, Real chlorite and Kaolinite mine

The study was conducted in the Central Laboratory of Plant Tissue Culture - College of Agricultural Engineering Sciences - University of Baghdad for the period from October 2021 to August 2022 with the aim of tissue propagation of the Phalaenopsis amabilis L. orchid plant. The study consisted of five sequential experiments (sterilization, initiation, multiplication, rooting, and acclimatization) in order to obtain the best treatment for the next experiment. The results showed that the best treatment for sterilizing the nodules was 15 ml of commercial bleach for 15 minutes. As for the Initiation stage, the nodules were stimulated on MS medium containing 60 ml L^-1 coconut water, which amounted to 100%. As for th

This study was aimed to determine  the active compounds in alcoholic extracts (methanolic 75% and ethanolic 75%) of  Pelargonium gravolens leaves and flowers as well as their antibacterial and antioxidant  activities. The methanolic extract of dry leaves and fresh flowers (30 g each) gave  4.8650, 2.8015 g  respectively. While ethanolic extract for the same parts gave 5.5787, 2.1832g respectively.    Spectrophotometric analysis showed that, the flavonoids content in leaves and flowers methanol extract  were  20.38, 70.90 μg rutin equivalent/g of extract, respectively, as for ethanol  extract  those values were 21.89, 71.63 μg rutin equivalent/g of ext

This study was aimed to identification of certain crosses to produce hybrids with higher performance per se can be aided by the determination of simple sequence repeats (SSR), which can improve our understanding of the genetic divergence of maize lines and their classification into different heterotic groups. Variability for each locus was measured using the polymorphism information content (PIC), with an average of 0.55, suggesting that the markers were highly informative. Analysis of the molecular variance (AMOVA) indicated higher divergence among the maize lines, suggesting the existence of different groups. The unweighted pair group method with arithmetic mean analysis (UPGMA) and th

This study was conducted to evaluate the effects of resveratrol as a natural antioxidant in improving the chemical properties and some qualitative and microbial properties of chilled ground beef stored at 2 C° for 1, 3, 6, 9, and 12 days. The study included 7 different treatments: T1 (control treatment without addition) T2 (Resveratrol 0.10% g/kg) T3 (Resveratrol 0.20% g/kg) T4 (Resveratrol 0.30% g/kg) T5 (Resveratrol %0.40g/kg) T6 (Resveratrol %0.50g/kg) and T7 (Addition of Butylated hydroxyanisole 0.01% BHA). All addition treatments showed a significant (P<0.05) decreases in dry matter percentage of Fat and Ash and increase in protein, moisture and water holding capacity (WHC) percentage as compared with the control treatme