Kufa Journals System University of Kufa
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MIXED CONVECTION HEAT TRANSFER IN TRUNCATED CONE ENCLOSURE AS SOLAR CONTAINER WITH INTERNAL CENTERED TRIANGLE OBSTACLE
No full textIn this study, the mixed convection heat transfer of the air inside a truncated cone enclosure with aspect ratio of (0.75, 1.75, 2, 2.45 and 2.65) with centered triangle obstacle height varying by (0, 2.5, 5, 7.5, 10, 12.5 and 20 cm) and the heated wall inclination angles of (20o, 30o, 40o, 50o, 60o), the Richardson number in the range of (7 to 11) was investigated numerically. The results are addressed to automotive a suggested solar container with titled solar collector. The heat transfer from the heat source (inclined solar collector) of the enclosure walls is investigated for mixed convection as interaction of the forced convection flow between the inlet and outlet port in the bottom wall. The parameters of heat source, Reynolds number, obstacle height, enclosure aspect ratio, and left and right walls titled angles are considered in this work. The numerical simulation of the problem is carried out using commercial CFD code. The results are given in terms of the streamlines, isothermal, and the enclosure Nusselt number that characterizes the heat transfer from the heat source and from the interior fluid to the enclosure walls, respectively. The results show that the interaction of the main flow and the flow at the heated walls and the buoyancy force at the heated walls increased by using a triangular obstacle and by increasing the obstacle heights, it increased by 20% when using obstacle at position of (h=5 cm). Also, it is found that the Nu increased with increasing Re and the wall heat flux. The Nu increased with increasing Ri in the case of using (h=0 and 5 cm) but it decreased slightly in the other cases and showed that the minimum value of Nu present at a heated wall inclination of θ=50o but the maximum value at θ=30o.http://dx.doi.org/10.30572/2018/kje/09042
أثر سياق الحال في الدلالة على الزمان في التعبير القرآني
No full textهذا البحث محاولة لبيان أثر سياق الحال- بوصفه ظروف القول وملابساته- في الدلالة على الزمان، وتحديد أبعاده في ضوء الظروف الخارجية المحيطة بالكلام، في التعبير القرآني.وقد تناول البحث بعض النماذج المرتبطة بالزمان في النظام النحوي، كدلالة (إذا) الشرطية، و(إذْ) الظرفية، و(كان) الناسخة، وأسلوب التحضيض، والمكي والمدني في اصطلاح المفسرين، وعلاقتهما بالزمان.ومعنى ذلك أنه ليس من الممكن القول إن (إذا) الشرطية تدل على المستقبل اطراداً كما يوهم ظاهر قول النحاة، فهي أحياناً تدل على الزمن الماضي بمعونة سياق الحال المتمثل بظروف الخطاب القرآني وملابساته، وكذلك (إذ) الظرفية، لا يستقيم حملها على الماضي أينما وردت، ففي بعض الأحيان تدل على المستقبل استرشاداً بملابسات الحدث الكلامي.والأمر مماثل في (كان) الناسخة، فمن العسير أن توصف بزمن مطرد استناداً إلى صيغتها، لأن سياق الحال قادر على صرفها إلى دلالة زمنية مغايرة، فقد تأتي بلفظ الماضي (كان) ولكنها تنطوي على دلالات مباينة للماضي المنقطع.وكذلك أسلوب التحضيض، إذ لا يمكن وضع قاعدة مطردة في دلالته الزمنية وفقاً للفعل الماضي أو المضارع الواقعين بعد أدوات التحضيض إلا إذا استنطقت الظروف المحيطة بالكلام، فإنها هي المبيّنة للدلالة الزمنية، فصيغة الفعل وحدها قاصرة عن تكوين دلالة زمنية مطابقة لواقع الحدث الكلامي، بل إن سياق المقال وسياق الحال يتشاطران الدلالة الزمنية في التركيب اللغوي.وأما المكي والمدني عند المفسرين، فقد يتوقف كل منهما على الوقوف على ظروف المخاطبين وتكوينهم الثقافي والمعرفي، ومن ثم فإن الخطاب يأتي منسجماً مع أحوالهم وطبيعتهم وتوجهاتهم، فيكشف ذلك عن زمن الخطاب إذ المدني في الغالب متأخر زمناً عن المكي، وهكذا يقوم سياق الحال بدور كبير في بيان الدلالة على الزمان في التعبير القرآن
Isolation and identification of Helicobacter pylori by PCR from drinking water supplies in Erbil city
No full textOut of the 200 samples of drinking water, which were collected from different source in Erbil city, from the period November 2014 until April 2015 . In this study, 36 isolates of Helicobacter pylori were isolated from samples as well as from biofilms, this study directed for the isolation of Helicobacter pylori by culturing in different media and identified by biochemical tests and PCR technique, in order to evaluate the potential role of drinking water in transmission of H. pylori. Water samples cultured on Brain heart infusion agar with supplement, Colombia agar base with supplement and Brucella agar; the results showed that The total number and percentage of the isolates of H. pylori from all tested water samples were 36 (18%), and these distributed as follow: 12 (24%), 11(22%), 8(16%) and 5(10%) from biofilms, reservoir, groundwater and tap water respectively. All H. pylori isolates were identified by using cultural , morphological , biochemical characteristics, from all(36) of isolates:30(83%) gave positive reaction for urease indicates that the isolates had the ability to produce the urease as well as 24(67%) of the total isolates; oxidase and catalase gave positive reaction while 17(61%) of the total isolates are motile. 35(97%) of the total samples confirmed by using primers for identification of H. pylori based on 16SrRNA this was the first report on using 16SrRNA amplification and confirmation of H. pylori isolates from water samples in Iraq. The ureA genotype was expected to be present in nearly all 34(94%) Helicobacter positive isolates. The PCR assay employed in this work specifically targets a region of the ureC (glmM) gene which has been shown to be unique and essential for the growth of H. pylori and the results appeared that 28(78%) of the total isolates have this gene This study was succeeding to detect the ureA and C gene in most of the isolates which was already confirmed by16SrRNA
A Comparison between the Acute Effects of Coxis on renal function with that of diclofenac Sodium in patients with rheumatological disorders
No full textThe aim of this study was identify the effect of (coxibs) on renal function in comparison to the traditional (NSAIDs) to provide more insight on this issue. Particular emphasis has been paid to the possible acute renal toxicities such as acute decline in renal function, hyperkalaemia, hypertension and sodium and water retension, the study was conducted during the period from (February –August) 2018 , Rheumatological out-patient clinic in Ibn-Sina Teaching Hospital in Mosul. patients and methods : Eighty patients with different rheumatological disorders who have no history of pre-existing renal disease
The inhibitory effect of Pleurotus ostreatus on the growth of Aspergillus niger and the production of Ochratoxin A. and isolated from apples
No full textThe objective of this study was to explore and diagnose the mycotoxic from apple in order to decreases their toxic effects. The results showed the two species of fungi which included , Aspergillus niger and Rhizopus stolonifer. It was found that there was a significant appearance of A. niger, followed by Rhizopus stolonifer. With a frequency of 84.21% and 15.79% respectively, while the rate Percentage of appearance was 100% and 37.5%, respectively. . The results of chemical analysis of TLC showed that 5 isolates out of the16 tested isolates of A. niger wrer a produced of Ochratoxin A with a production rate of 31.25%. The results also showed that Pleurotus ostreatus was high resistance against A. niger the nutritional medium Potato Sucrose Agar , Where covered the entire area of the dish and were not allowed to A. niger to grow, and showed a degree of contrast (1). The results showed that Pleurotus ostreatus was in high efficient reducting the Ochratoxin A, which was produced by A. niger.
Histological and ultrastructural studies on the liver of mice after treatment with single dose of LD50 Naja naja snake venom
No full textHistopathological and ultrastructural changes in liver tissues following intraperitoneal (i.p.) single LD50 of Naja naja snake venom (0. 055μg/g) body weight were studied. Tissues were obtained for histological and ultrastructural studies at 3 h and 24 h time intervals following injection of venom.Material and methods: A total of 18 adult male albino mice were used; divided into three groups; each containing 6 rats: First group: as control.Second and third group: treaded with i.p. single LD50 of Naja naja snake venom (0. 055μg/g) body weight , sacrificed after 3 and 24h respectively.The liver of the control and treated mice were dissected out for histological and ultrastructural examinations
study effect of cytomegalovirus on lipid profile in injured women in AL-Najaf governorate , Iraq.
No full textThe study conducted on 60 out patients women and 30 healthy women to determine the effect of injury to Cytomegalovirus on levels of cholesterol, TG, HDL, LDL and VLDL in women infected with Cytomegalovirus in compared with healthy women group . Who had visited AL-Hayat center laboratory ,AL-Riwan laboratory and Al-Sadder medical city in Al- Najaf governorate during the period from October 2015 till April 2016. The results apear significant decrease (P< 0.05) in LDL but significant increase in levels of cholesterol, TG,LDL, HDL, and VLDL of CMV infected women with compared to control group.
العائد والمخاطرة وانعكاسهما على الاداء المالي دراسة تحليلية لعينة من المصارف التجارية العراقية
No full textالمستخلص هدفت الدراسة الى قیاس مؤشرات العائد والمخاطرة وتحلیلها فضلا عن قياس مؤشرات الاداء المالي وتحليلها لعینة من المصارف التجارية المدرجة في سوق العراق للأوراق المالیة لمعرفة دور العائد والمخاطرة في الاداء المالي فیها وتهدف أیضا إلى بیان علاقة الارتباط بین متغيرات الدراسة ودرجة تأثیر العائد والمخاطرة في الاداء المالي.وقد تم اختيار عينة الدراسة من المصارف التجاریة العراقية المدرجة في سوق العراق للاوراق المالیة المتمثلة بعشرة مصارف تجاریة عراقیة تم دراستها لمدة عشر سنوات من 2006 - 2015 وقد تم استخدام معدل العائد على الموجودات كمؤشر لقياس العائد (x1) (المتغیر المستقل الاول) ، واستخدمت الدراسة نسبة القروض الى مجموع الموجودات كمؤشر لقياس المخاطرة (المتغير المستقل الثاني )(x2)، فضلا عن استخدام معدل العائد على حق الملكية كمؤشر لقياس الاداء المالي(المتغير التابع ), وتم استخدام عدد من الأسالیب الإحصائیة لقیاس العلاقات بین متغيرات الدراسة وهي : الوسط الحسابي , ومعامل الارتباط البسيط ( r) واختبار (T) ومعامل الانحدار البسيط ( b) واختبار (F) فضلا عن معامل التحديد (R2 ).اما اهم النتائج التي توصلت اليها الدراسة هي وجود علاقة ارتباط ذات دلالة احصائية ومعنوية وعلاقة اثر ذات دلالة احصائية ومعنوية للعائد والمخاطرة في الاداء المالي وهذا ما يؤيد فرضيات الوجود للدراسة.AbstractThe aim of this study was measure the indicators of return and risk and analysis it, , as well as the measurement of financial performance indicators and analyses for simple listed of commercial banks in the Iraq market of financial securities to know the role of return and risk in the financial performance. In addition, this study aims to explain the relationship of correlation between study variables and the degree of impact of return, risk, in the financial performance
تأثيرستراتيجيات ادارة الصراع في الاداء التمريضي / بحث تطبيقي في مستشفى الرشاد التدريبي
No full textالمستخلص يهدف هذا البحث إلى دراسة ستراتيجيات أدارة الصراع، والتي شملت (ستراتيجية التجنب، ستراتيجية القوة والسيطرة، ستراتيجية التعاون، ستراتيجية التسوية )، وأثرها في الاداء التمريضي (درجة الرضى عن العمل، الابداع، الانتاجية ). جاء البحث لمعرفة الستراتيجية التي تستخدمها أدارة المستشفى ومدى تأثيرها في الاداء التمريضي، اما مجتمع البحث فكان مستشفى الرشاد التدريبي التابع لدائرة صحة بغداد الرصافة ، بوصفه من أهم المستشفيات الخدمية ذات الاختصاص الدقيق في الطب النفسي وتأثيرها في حياة المواطنين وكيفية تمكين هذه المستشفى من إدراكها لستراتيجيات ادارة الصراع التنظيمي ترفع من مستوى الأداء التمريضي المقدم وجعلها حافز لإثارة روح التنافس والإبداع بين الممرضين مما يزيد من فاعلية المستشفى في تقديم أفضل رعاية صحية . بلغت عينة البحث (100) ممرض وممرضة. وكانت الدراسة الاستطلاعية والاستبانة هي الوسيلة لجمع المعلومات التي اعتمدها الباحث، فضلا عن الخبرة من خلال عمله في مستشفى الرشاد التدريبي لعدة سنوات، وتم تضمين موضوع البحث بجملة من التساؤلات الفكرية التي تبلورت بمجموعها مشكلة البحث، ومن ثم تم تحديد أهدافه وأهميته، فضلا عن صياغة فرضيات البحث. كما توصل الباحث الى مجموعة من الاستنتاجات كان اهمها (ترجيح ستراتيجية القوة والسيطرة على بقية الستراتيجيات وأستخدامه بكثرة من قبل ادارة المستشفى في عملية ادارة الصراع)وقدم الباحث مجموعة من التوصيات أبرزها ( ضرورة قيام أدارة المستشفى بعد ترجيح بعد ستراتيجيةالقوة والسيطرة على غيره من الابعاد المدروسة بتنويع ستراتيجياتها في عملية أدارة الصراع التنظيمي) ولغرض تعميق الدراسات والبحوث في حقول الإدارة المعاصرة والإدارة الستراتيجية تقترح الدراسة ضرورة إجراء عدد من الدراسات والبحوث المستقبليةالمصطلحات الرئيسية للبحث / الصراع التنظيمي _ ستراتيجيات أدارة الصراع التنظيمي / الاداء التمريضي AbstractThis research aims to study conflict management strategies, which included (avoidance strategy, strategy of power and control, strategic cooperation, strategic settlement), and its impact on nursing performance (degree of satisfaction with work, creativity, productivity). Came search to see the strategy employed by the hospital administration and the extent of its impact on nursing performance, either the research community was Rashad hospital training program of the Department of Health in Baghdad's Rusafa, as one of the most important service hospitals with the exact specialty in psychiatry and its impact on the lives of citizens and how to enable the hospital aware of strategies administration organizational conflict raises the level of performance provided nursing and make it an incentive to raise the spirit of competition and creativity among nurses, which increases the effectiveness of the hospital to provide the best health care. The sample of (100) nurses. The study was exploratory and the resolution is the means to gather information adopted by the researcher, as well as experience through his work in the al-Rashad Training Hospital for several years, was to include the subject of research, inter intellectual questions that have evolved collectively research problem, and then determine its objectives and its importance, as well as the formulation of hypotheses search. The researcher found to a set of conclusions was the most important (weighting strategic power and control over the rest of the strategies and frequently used by the hospital administration in the process of conflict management)The researcher presented a set of recommendations, most notably (the need for the hospital administration after tipping after Stratejahalqoh and control over the other dimensions studied diversifying Stratejyatea in managing organizational conflict) process for the purpose of deepening the studies and research in contemporary management fields and management strategy study suggests the need for a number of studies and future researc
Primary productivity in Bahr Al-Najaf Depression Reservoir/Iraq
No full textThe primary productivity was calculated depending on pelagic and benthic biomass. Monthly samples were obtained from four study stations (February 2015 to January 2016). The pelagic primary productivity values were ranged between1.26 mg. cm-2. year-1 to4.31mg. cm-2 .year-1, and benthic primary productivity was ranged between 0.01mg. cm-2.year-1to 0.12 mg cm-2.year-1.The highest pelagic productivity was observed in spring and the lowest one was in autumn while the highest benthic productivity was obtained in autumn and the lowest productivity in winter. The highest phytoplankton abundance was observed in spring and the lowest was recorded in summer, while the highest Epipelic abundance was observed in autumn and the lowest in spring. Statistical analysis showed that spring significantly affect pelagic net primary productivity, while autumn significantly affect benthic net primary productivit