In the present investigation, the synthesis of copper nanoparticles from green tea was attempted and investigated for its capacity to adsorb drugs (Ciprofloxacin). The copper nanoparticles (Cu-NPs) were characterized by different techniques of analysis such as scanning electron microscopy (SEM) images, atomic force microscope (AFM), blumenauer-emmer-teller (BET), fourier transform infrared (FTIR) spectroscopy, and zeta potentials techniques. Cu-NPs lie in the mesoporous material category with a diameter in the range of 2-50 nm. The aqueous solution was investigated for the removal of ciprofloxacin (CIP) with green tea-synthesized Cu-NPs. The results showed that ciprofloxacin efficiency depe
... Show MoreRisperidone is an atypical antipsychotic drug that is used for treating schizophrenia, bipolar mania, and autism. Risperidone rebalances dopamine and serotonin to improve thinking, mood, and behavior by working on dopamine and serotonin α2receptor antagonism. Risperidone has poor solubility and high permeability through the intestine, so it belongs to Biopharmaceutical Classification System (BCS) class II exhibits poor oral biopharmaceutical properties.
The aim of the present work was to improve solubility and dissolution of Risperidone by preparing nanosuspension using different stabilizers and different solvents in a method known as solvent-antisolvent precipitation method. Twenty-eight formulas were prepared
... Show MoreSince independence in 1956, several attempts have been made to reform educational practices in the Moroccan education system, while going through several stages:Evaluation of the state of the Moroccan education system, determination of failures and the establishment of an effective strategy to improve the quality of education and training in the Moroccan public school.We focus on monitoring the establishment of the pillars of the reform, against the various difficulties that hinder the development of the education sector, from 1999 until today and towards the horizon of 2030. We provide data on the situation of the reform, then we analyze its various stages from a critical point of view, based on the reports of the court of auditors, to
... Show MoreThis article contains a new generalizations of Ϻ-hyponormal operators which is namely (Ϻ,θ)-hyponormal operator define on Hilbert space H. Furthermore, we investigate some properties of this concept such as the product and sum of two (Ϻ, θ)-hyponormal operators, At the end the operator equation where , has been used for getting several characterization of (Ϻ,θ)-hyponormal operators.
A new series of morpholine derivative were prepared by reacting the morpholine with ethyl chloro acetate in the presence triethylamine as an catalyst and benzene as a solvent gave the ethyl morpholin-4-ylacetate reaction with hydrazine hydrate and ethanol as a solvent gave the 2-(morpholin-4-yl)acetohydrazide gave series of Schiff base were prepared by reacting 2-(morpholin-4- yl)acetohydrazide with different aromatic aldehydes and ketons . The new series of (3-9 )were synthesis by reaction of Schiff base (10-14) with chloroacetyl chloride, triethyl amine as an catalyst and 1,4dioxane as a solvent .The chemical structures of the synthesis compound were identified by spectral methods their [ IR ,1H-NMR and 13C-NMR ].The synthesised compoun
... Show MoreThe Skyrme–Hartree–Fock (SHF) method with the Skyrme
parameters; SKxtb, SGII, SKO, SKxs15, SKxs20 and SKxs25 have
been used to investigate the ground state properties of some 2s-1d
shell nuclei with Z=N (namely; 20Ne, 24Mg, 28Si and 32S) such as, the
charge, proton and matter densities, the corresponding root mean
square (rms) radii, neutron skin thickness, elastic electron scattering
form factors and the binding energy per nucleon. The calculated
results have been discussed and compared with the available
experimental data.
In the present study, pure Poly(viny1 alcohol) (PVA) and pyromellitic dianhydride (PMDA) cross linked PVA with (0,5,10,15 and 20)wt.% and doped with different molarity (5,9)M of sulfuric acid (H2SO4) were prepared by the solution casting method and were characterized as a function of frequency in the range (1-100) KHz.
The FT-IR results showed that the strong broad band observed at 3738.05 and 3857.63 cm-1 may be assigned to O-H stretching due to the strong hydrogen bond of intramolecular and intermolecular type in PVA film. When PVA is doped with 5M and 9M H2SO4, a new peak was noticed at 813 cm-1, this peak may be due to the fo
... Show MoreIn this article, we investigate the peristaltic flow of a Powell-Eyring fluid flowing in an asymmetrical channel with an inclining magnetic field through a porous medium, and we focus on the impact that varying rotation has on this flow. Long wavelength and low Reynolds number are assumed, where the perturbation approach is used to solve the nonlinear governing equations in the Cartesian coordinate system to produce series solutions. Distributions of velocity and pressure gradients are expressed mathematically. The effect of these parameters is discussed and illustrated graphically through the set of figures. To get these numerical results, we used the math program MATHEMATICA.
We obtain the coefficient estimates, extreme points, distortion and growth boundaries, radii of starlikeness, convexity, and close-to-convexity, according to the main purpose of this paper.
Drug –induced nephrotoxicity is an important cause of renal failure. Aminoglycoside antibiotics, such as amikacin, which causes ototoxicity and nephrtotoxicity as a main side effects, this is focused on the use of natural materials as antioxidants against the toxic oxidative action that exert a cell damaging effect. The most important one of these materials is the honey. The aim of this work is to evaluate the antioxidant effects of honey against amikacin – induced nephrotoxicity.18 albino rats divided into 3 groups (6 rats per each group), group 1 received I.P daily dose of normal saline (control), group 2 received (35 mg/kg/day) I.P dose of amikacin ,and group 3 received (35mg/kg/day) of amikacin I.P dose in combina
... Show MoreThis work presents an analytical study for simulating a Fabry-Perot Bi-stable etalon (F-P cavity) filled with a dispersive optimized nonlinear optical material (Kerr type) such as semiconductors Indium Antimonite (InSb). Depending on the obtained results and because of a trade-off between the optical path length of the sample and active cavity lifetime, an optimization procedure was applied on the InSb etalon/CO laser parameters; critical switching irradiance (Ic) was applied via simulation systems of optimization procedures of optical cavity (Matlap program was used to study the optical Bi-stability of a nonlinear Fabry-Perot cavity). In order to achieve minimum switching power and faster switching time, the optimizatio
... Show MoreBased on the theoretical ideas of E. Cassirer, a methodology is developed and an analysis of the painting work by J. Saleem, a representative of modern Iraqi painting, is carried out. While comparing the artistic programme of J. Saleem and the views of E. Cassirer, the methodological potential of the theory of the symbol for the art criticism analysis of the regional painting is clarified. Comparative analysis with the inclusion of the works of B. Buffet, B. Turetsky, J. Miro helps to see the multiple meanings of the same cultural symbol in thematically similar works of different years, created in different socio-cultural circumstances. The article shows that for regions with a shorter history (France, Russia, Spain, etc.), which have lo
... Show MoreAs the word can fluctuate between central and peripheral dlalten it represents the first lexical meaning and the second represents the meaning that gain by the context in which it appear so this research came to show signs that can be acquired the root ( GUM ) and its derivatives from the contexts in which it is mentioned in the Koran as well as siqnificant Lexical if this research is divided on two first is eating Lexical semantics , the second handled connotations in the Koran was based on what the commentators and concemed with the meanings of the Koran and the owners Almagamat in astatement that the semantic .
Implantation of blastocyst is considered as a sensitive process in the life of growing embryo. Thus this critical period could be under threat from the harmful effect of many drugs ,among them is the carbamazepine which is used by many women for a treatment of epilepsy . The present experiment was designed to study the effect of this drug on the process of implantation ;especially during the days 7 and 9 of pregnancy. For those purpose 169 pregnant albino mice, of 25 gm weight for each one, were used .The mice were divided into control group given orally normal saline, and treated group given orally carbamazepine with concentration of 15 mg\kg. Samples from pregnant uteri containing the embryos were used. They were first fixed in Boun's sol
... Show Moreالملخص العربي
ركز البحث على توضيح حقيقة معينة وعرضها على القارئ المختص والعامة. خصوصيات رواية ابن بطوطة عن المرأة في ولاية الفقع؟ ما هي مزايا هذه الرؤية؟
بدءا بالقول إن ابن بطوطة كمسافر لم يكن له علاقة بالطواف ، ذلك الطواف ، الذي ذهب على سبيل المثال يتاجر به الناس إلى اليوم واكتسب الشهرة على المستوى العالمي ، الذي لا يكسب سوى عدد قليل من أمثاله.
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... Show Moreيقصد بالتراث ، الهوية الثقافية والوطنية لكل شعب او مجموعة افراد فهو مخزن للذاكرة الإنسانية وللثقافات في مختلف أصنافها المادية والمعنوية ، فالحماية لا تمنح للأشياء لأهميتها الأثرية والتاريخية فقط ، وإنما تمنح بعدّها مصدراً للمعلومات والمعرفة
وقد عُرف القانون الدولي التراث الثقافي بعدة تعريفات ، فجانب من الفقه الدولي ذهب الى الربط بين التراث الثقافي ومصطلح الثقافة نفسه , فيعرف الثقافة بأنها
... Show Moreالملخص :
يعد العمال المصريين من ابرز القوى الاجتماعية التي وضعت حداً في كثير من المواقف السياسية .فكان لدورهم الكبير في وضع حد لوقف الصراع بين جمال عبد الناصر ومحمد نجيب نتيجة لاختلاف الافكار والمواقف بين عبد الناصر ونجيب دوراً كبيراً ,حيث وقف العمال الى جنب عبد الناصر وبقاء ثورة 23 يوليو 1952 كونها الثورة التي رفعت مركزهم الاجتماعي الذي كان مضطهد في زمن الملكية .فكان للمظاهرات والاضرابات التي اجتمع
... Show Moreملخص البحث باللغة العربية :
تهيأت لنا الفرصة للحصول على مجموعة جيدة من ( القطع المصادرة من دمى فخارية من المتحف العراقي ) , وبعد أجراء الفحص والتدقيق بعناية تم إختيار عدد من هذه الدمى الفخارية لتكون مادة البحث المقدم , وقد شمل البحث دراسة تطبيقية لجميع التفاصيل الخاصة بهذه الدمى من تصوير , ورسم أشكال الدمى التوضيحية , وكذلك الجداول الخاصة بأشكالها , وأرقامها المتحفية , فضلاً عن قياساتها وألوانها وحالتها , وب
... Show Moreمثل عام 1875 نقطة الذروة في حركة التحرر في البوسنة والهرسك ضد السيطرة العثمانية، إذ اندلعت في هذه السنة انتفاضة فلاحية عارمة شملت معظم الولاية، وتسببت بأزمة عالمية استمرت حتى عام 1878 عرفت بالأزمة الشرقية، وفتحت من جديد قضية المسألة الشرقية العويصة، وأملاك الرجل المريض، التي كانت قد هُـدِئَتْ نسبياً بمؤتمر باريس 1856.
في الوقت الذي كانت فيه القوى القومية والتحررية تنخر في كيان الدولة العثمانية من الداخل، أخ
... Show Moreبوقوع الجريمة ينشأ حق للمجتمع في اقتضاء الجزاء من مرتكب الجريمة وذلك عن طريق الدعوى الجزائية إذ انها السبيل الوحيد لذلك ويطلق على الأعمال التي يباشرها أطراف الدعوى الجزائية سواء أكانوا من الخصوم فيها أم من غيرهم بالأعمال الاجرائية وإنَّ جميع هذه الأعمال محددة بموجب القواعد الإجرائية الجزائية فلا يمكن مباشرة أي عمل إجرائي معين إلا بتوافر شروطه وهذه الشروط على طائفتين : شكلية وموضوعية ، وقد تتعلق تلك الش
... Show MoreBabesiosis is a tick-borne disease caused by Babesia microti. We present a case of false positive HIV in the setting of confirmed babesiosis infection. An understanding that patients with babesiosis can have a false positive HIV test result is important in management decisions.
الملخص :
يتناول البحث دور العراق التجاري مع دول جنوب شرق اسيا والصين من خلال المردودات الايجابية لانتقال الخلافة إلى العراق وبناء بغداد، بموقعها المتميز ومجتمعها المتحضر، وما تبع ذلك من اجراءات قامت بها الدولة العباسية لتامين الطريق البحري الموصل إلى الشرق عبر الخليج العربي والمحيط الهندي والتي ساهمت ليس في ازدهار التجارة فحسب وانما في اقامت العلاقات الحسنة مع حكومات تلك البلدان، كانت في معض
... Show Moreالملخص:
كانت بريطانيا تخطط ومنذ زمن ليس بالقليل لغزو العراق أو لغزو جنوبه على أقل تقدير، فأنزلت قواتها العسكرية في الفاو في السادس من تشرين الثاني سنة 1914م، ولم يُثر هذا الأمر استغراب الدول الكبرى الأخرى لأنها تتبع المسار والاتجاه نفسه ، وبعد الفاو واصلت القوات البريطانية تقدمها نحو البصرة، ونتيجةً لذلك لجأت الحكومة العثمانية إلى رجال الدين لاسيما في النجف الأشرف لإعلان الجهاد والاتفاق مع الع
... Show MoreLocally isolated fowl pox virus was inoculated on chorioallantoic membrane
of chick embryos, leads to the appearances of odema and pocks lesion on the
membrane , 120 hours post inoculation .Virus assay showed that the infectivity
titer were 106.8 to 107.5 EID50/0.1 ml in embryonated chicken eggs. Monolayer
tissue cultures of chick embryo fibroblast cells infected with fowl pox virus were
examined by acridine orange staining and indirect immunoperoxidase test to study
the cytopathogenic effects of the virus . The most striking cytoplasmic changes
observed was the presence of the intracytoplasmic inclusions at 24-48 hours post
inoculation, numerous inclusions were clearly seen at 72 hr. P.I.in addition to
cytopla
In this study, light elements for 13C , 16O for (α,n) and (n,α) reactions as well as α-particle energy from 2.7 MeV to 3.08 MeV are used as far as the data of reaction cross sections are available. The more recent cross sections data of (α,n) and (n,α) reactions are reproduced in fine steps 0.02 MeV for 16O (n,α) 13C in the specified energy range, as well as cross section (α,n) values were derived from the published data of (n,α) as a function of α-energy in the same fine energy steps by using the principle inverse reactions. This calculation involves only the ground state of 13C , 16O in the reactions 13C (α,n) 16O and 16O (n,α) 13C.
The present study focused mainly on the buckling behavior of composite laminated plates subjected to mechanical loads. Mechanical loads are analyzed by experimental analysis, analytical analysis (for laminates without cutouts) and numerical analysis by finite element method (for laminates with and without cutouts) for different type of loads which could be uniform or non-uniform, uniaxial or biaxial. In addition to many design parameters of the laminates such as aspect ratio, thickness ratio, and lamination angle or the parameters of the cutout such as shape, size, position, direction, and radii rounding) which are changed to studytheir effects on the buckling characteristics with various boundary conditions. Levy method of classical lam
... Show MoreAbstract
The current research aims to identify psychological resilience among middle school students. a sample of (300) male and female students was chosen from Al- Azmaa Intermediate School for Boys and Ohran Intermediate School for Girls, It is affiliated with the second Rusafa Education Directorate in Baghdad Governorate. To achieve the research objective, the researcher adopted a scale of Luthar & Cicchetti (2000) to measure psychological resilience. The results showed that middle school students have psychological resilience. There is no significant difference in psychological resilience between males and females.
