Four new phenol-formaldehyde resins containing tetrachlorophthalimides in their repeating units were synthesized via condensation of formaldehyde with N-(hydroxy phenyl)tetrachlorophthalimides under conditions similar to those used in novolac preparation. In this work structural modifications were performed first via design and synthesis of new phenolic component represented by phenolic ring linked to thermally stable tetrachlorophthalimide moiety which condense with formaldehyde and second via introducing of phenolic hydroxyl groups present in the new synthesized resins by esterification reaction with acetyl chloride producing the corresponding acetoxy substituted resins. Both the prepared and the cured resins have new properties which

هدفت هذه الدراسة إلى معرفة تأثير عمل المرأة في جودة حياتها، والتعرُّف على كيفية تحقيق المرأة العاملة للتوازن بين عملها وحياتها، والكشف عن أوجه تأثير العمل في حياة المرأة، وما سبل تحقيق المرأة العاملة للتوازن بين عملها وحياتها، والكشف عن التحديات التي تحول من دون تحقيق التوازن بين عمل المرأة وحياتها. اذ استعلمت الباحثة المنهج الوصفي التحليلي لقدرته على وصف متغيرات الدراسة بالدقة المطلوبة، وجرى تطبيق الدرا

    الحمد الله رب العالمين، والصلاة والسلام على أفضل رسله، وخاتم أنبيائه، محمد وآله الطيبين الطاهرين.

حمل جيل الخمسينيات رؤى فكرية وفنية مختلفة عما سبقه من أجيال بحكم ما مر به من تطورات شهدتها الامة العربية بشكل عام والعراق بشكل خاص، كان من آثارها ما شهده الواقع العراقي على المستويات كافة السياسية والاجتماعية والاقتصادية التي أدت بما حملته من أحداث مختلفة إلى تطور الوعي الفكري لدى الشع

The study tagged: (The aesthetics of balance and its relationship to the design of the body of the industrial product) discussed the role of balance in the design of industrial products of different shapes, colors and sizes, as well as their function. Based on the research problem that was determined by the following question: What is the relationship between balance and the design of the body of the industrial product? The aim of the research is to: reveal the statement of the effectiveness of the balance in the design of the industrial product body.
The study was defined in four chapters: in the first chapter, a problem, the importance, and the aim of the research were presented. The second chapter contained the theoretical framewor

تناولت الورقة دور المرشد الطلابي في الجامعات لوقاية الشباب من تعاطي المخدرات ولاية الخرطوم أنموذجاً. هدفت الدراسة التعرف إلى حجم مشكلة تعاطي المخدرات وسط طلاب الجامعات في ولاية الخرطوم، والتعرف إلى دور المرشد الطلابي في الوقاية من تعاطي المخدرات. تأتي أهمية هذه الدراسة في تناولها شريحة مهمة في المجتمع وهم الشباب في الجامعات ونظرا لأهمية دور الجامعات في المجتمع لإنتاج أجيال ذات فكر علمي يعتمد على الشفافية

Background: Cytology is one of the important diagnostic tests done on effusion fluid. It can detect malignant cells in up to 60% of malignant cases. The most important benign cell present in these effusions is the mesothelial cell. Mesothelial atypia can be striking andmay simulate metastatic carcinoma. Many clinical conditions may produce such a reactive atypical cells as in anemia,SLE, liver cirrhosis and many other conditions. Recently many studies showed the value of computerized image analysis in differentiating atypical cells from malignant adenocarcinoma cells in effusion smears. Other studies support the reliability of the quantitative analysisand morphometric features and proved that they are objective prognostic indices. Method

    A revision study of the Sphecidae from Iraq is presented. A survey is conducted to collect the specimens from different regions; generally, there were 41 species belonging to 12 genera and 4 subfamilies are revised with synonyms.

    The current investigation included the species previously reported in Iraq, which were not collected during the current investigations; the distribution and other information are also provided.

The diversity of ideas and freedom of expression among the authors, who are looking for what's new serve the goals of musical expression and aesthetic, which calls for the use of traditional instruments with the formation of the great instrumental music and well-known orchestra, is a major challenge from several quarters, the failure of some of those musical instruments or limited potential or method performed by costly sometimes prevents the use of a permanent in this great configuration, had to be the emergence of some of the problems faced by the author and musician on the one hand and the receiver on the other hand, which must be looking for the perfect, some of these musical instrument are used systematically follows the work of the

In this paper, Pentacene based-organic field effect transistors (OFETs) by using different layers (monolayer, bilayer and trilayer) for three different gate insulators (ZrO2, PVA and CYEPL) were studied its current–voltage (I-V) characteristics by using the gradual-channel approximation model. The device exhibits a typical output curve of a field-effect transistor (FET). Source-drain voltage (Vds) was also investigated to study the effects of gate dielectric on electrical performance for OFET. The effect of capacitancesemiconductor in performance OFETs was considered. The values of current and transconductance which calculated using MATLAB simulation. It exhibited a value of current increase with increasing source-drain voltage.

Background: Known as suxamethonium or succinylcholine, is a medication used to cause short-term paralysis as part of general anesthesia. The duration of operation is one of the important factors accounting to the success of the operation. Simple safe available drug can change the plan of anesthesia.

Objective:  The purpose of this study was to assess adding Lidocaine three minutes intravenously before induction of general anesthesia on the duration of optimum prolongation the action of  Suxamethonium  . With other group with regular meth

In this study we prepare Cu2O films by using plasma sputtering method on
substrate from glass type Pyrex; we used system of dipole sputtering with magnetic
field. We studied the optical and structural properties to Cu2O and we studied
thermal annealing with 150◦C on optical and structural properties for prepared thin
films with thickness 2000Ǻ for one hour. It showed that the thermal annealing leads
to increase of optical energy gap. We used x-rays diffraction for diagnostic structure
and nature thin film material. the results appear that the thin film is poly crystalline
structure, the thermal annealing leads to drop of diffraction peaks and increase it
edges that's means it become more uniform

In this research the uranium concentrations in (13) different types of natural herb
samples had been measured, and to limit the level of contamination with radio
nuclides. The determination of uranium concentration in these samples has been
done by using CR-39 track detector, the nuclear reaction used a source of nuclear
fission fragments is 235U (n,f) obtained by the bombardment of 235U with thermal
neutrons from (Am-Be) neutron source which has a flux of (5000 n cm-2 s-1). The
results obtained show that the concentration of Uranium were calculated by
comparison with standard samples, and varies from 0.235 ppm in (calum) type to
0.552 ppm in (Lazmender) type, all the results obtained are within th

A design and implementation of images' cryptography system is evaluated in this
paper. This system depends on the idea of allocating a part of a digital image
(possibly the first block of the image) so as to produce the cipher keys for the other
parts. Circles generating algorithm is used to produce keys from the chosen block,
then corresponding circles in other blocks will be encrypted using the located keys.
So in this method encryption keys are brought from the plain-image (source image)
it self using graphics shapes pixels.

In this paper a simulation for a mathematical two dimensional model was conducted
to assess the presence of defocusing due to telescope aperture quality. The point
spread function (psf), Modulation transfer function (MTF), and Fourier frequencies
of binary star are computed in the absence and presence of defocusing. The results
show that the total frequency components of MTF decreases very sharply as
defocusing values goes to 6 and after this value the total frequency changes very
slightly afterward. The relative heights of the second to third peaks decrease rapidly
as defocusing values goes to 3 and slightly changes after that.

The effect of pressure, applied to PMMA sample, on Mach -Zender interference
pattern has been studied.
The effects of length, depth and height of the PMMA samples on the resulting
number of fringes are investigated. The results of the experiments show almost a
linear behavior between the numbers of displaced fringes and the displacement of
the PMMA molecules with the applied pressure in all cases.
Finally, comparing the experimental with the theoretical results, it is found that,
there is a good agreement, in most cases, between them provided introducing a
correction factor which is found to be equal approximately 3.This effect can be used
as a pressure sensor.

The present study has been conducted to evaluate the inhibitory effects of the
aerial plant part (leaves and bark) extracts of D. viscosa before and during flowering
against some pathogenic bacteria for human, plants, and against yeast (Candida
albicans) by using different polarity organic solvents: Ethanol and Diethyl ether.
The agar well diffusion method was used to evaluate the inhibitory actions of these
extracts with eight concentrations: 0, 2.5, 5, 10, 20, 30, 40 or 50 mg/ml. The
Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration
(MBC) values were also determined, in addition to compare the results of the plant
extracts with the results of the susceptibility of path

In the present study, five derivatives have been designed to be synthesized as possible mutual prodrugs for 5-Fluorouracil (5-FU) and non steroidal anti-inflammatory drugs (NSAIDs) to selectively deliver the drugs into the cancer cells. The synthesis of the target compounds were accomplished following multistep reaction procedures, the chemical reaction followed up and the purity of the products were checked by TLC. The structure of the final compounds and their intermediates were confirmed by their melting points, infrared spectroscopy and elemental microanalysis, the hydrolysis of compound III was studied using HPLC technique. According to the results mentioned above, compounds (I−V) can be good candidates as possible mutual prod

This research has studied the effect of addition glass fibers (woven and chopped)
and Zirconium oxide Nano-particles (ZrO2) with different weight percent to the
conventional poly (methyl methacrylate) (PMMA). The prepared Nano-crystalline
ZrO2 powder with particle size of about 95nm was syntheses directly by sol-gel
method. The gel dried at 100oC for 1 hour and annelid at 400oC for 3 hours.
The conventional acrylic resin prepared with 2:1 powder to liquid ratio to prepare
pure sample, composite samples prepared by reinforcing PMMA with woven or
chopped glass fiber (8, 12) wt.%, and reinforcing by (1,2,3) wt.% of prepared ZrO2
Nano-powder.
The structural tests include: (XRD, AFM, and FTIR). The crystallized phas

Abstract

         Most of the industrial organization in the world became suffering from the problem of the pollution of the poisonous chemicals things, this urged to depend on the principle of the responsible production, because it has the positive role by dealing with these chemical things and to safe the health of the society, due to the main goal of this study is to restrict the role responsible production in accomplishing the system of the environmental management through an actual study in the northern gas company in Kirkuk province, the topic has acquired a big importance bacause there were a limited number of studies and res

The current paper was designed to find the possible synergic effect of EBV infection with the HPV-16 in Iraqi women suffering from cervical carcinoma. This retrospective study involved paraffinized blocks of two groups. The research included 30 carcinomatous cervical tissues and 15 samples from normal cervical biopsies. After sectioning using positively charged slides, immunohistochemistry (IHC) was performed to detect anti-Epstein Barr Virus LMP1 and Human papillomavirus type 16 primary antibodies. Sixty-three percentage (19 out of 30) of the studies group showed positive overexpression as shown in with a significant association of the expression with cervical cancer with a significant association (p = 0). The co-infection of the EBV and H

 Foreign direct investment has seen increasing interest worldwide, especially in developing economies. However, statistics have shown that Yemen received fluctuating FDI inflows during the period under study. Against this background, this research seeks to determine the relationship and impact of interest rates on FDI flows. The study also found other determinants that greatly affected FDI inflows in Yemen for the period 1990-2018. Study data collected from the World Bank and International Monetary Fund databases. It also ensured that the time series were made balanced and interconnected, and then the Auto Regressive Distributed Lag method used in the analysis. The results showed that the interest rates and

Lead remediation was achieved using simple cost, effective and eco-friendly way from industrial wastewater. Phragmitesaustralis (P.a) (Iraqi plant), was used as anovel biomaterial to remove lead ions from synthesized waste water. Different parameters which affected on adsorption processes were investigated like adsorbent dose, pH, contact time, and adsorbent particle size, to reach the optimized conditions (maximum adsorption). The adsorption of Pb (?) on (P.a) involved fast and slow process as a mechanism steps according to obey two theoretical adsorption isotherms; Langmuir and Freundlich. The thermos dynamic adsorption parameters were evaluated also. The (?H) obtained positive value that meanes adsorption of lead ions was an endothermic

FG Mohammed, HM Al-Dabbas, Iraqi journal of science, 2018 - Cited by 6

The transient performance (acceleration and deceleration) analysis of turbojet gas turbine engire has been carried out in the present work. Transient simulation of the engines is based on the compatibility of flow and rotational speed but not of work. Gas turbine simulation is a general- purpose simulation developed for steady state (matching) study. Matching is achieved by zeroing the difference in mass flow rate of adjacent components, and work of compressor-turbine pairi Steady state is taken as an initial condition for transient simulation of the engine. The factors indicating engine limits such as surge margin, engine maximum temperature, and combustion chamber flameout that affect transient response has been studied. The results sh

This paper will be present the success of using the World Wide Web as a platform for electronic commerce and explain the necessary security mechanisms for it, Also we will propose a new approach dealing with pre and post sales support activities by using the electronic media as integral and very important parts of the business process that can be implemented to our Iraqi small and medium enterprises.

Intelligent Transportation Systems (ITS) have been developed to improve the efficiency and safety of road transport by using new technologies for communication. Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) are a subset of ITS widely used to solve different issues associated with transportation in cities. Road traffic congestion is still the most significant problem that causes important economic and productivity damages, as well as increasing environmental effects. This paper introduces an early traffic congestion alert system in a vehicular network, using the internet of things (IoT) and fuzzy logic, for optimizing the traffic and increasing the flow. The proposed system detects critical driving conditions, or any emerge

Functionalized-multi wall carbon nanotubes (F-MWCNTs) and functionalized-single wall carbon nanotubes (F-SWCNTs) were well enhanced using CoO Nanoparticles. The sensor device consisted of a film of sensitive material (F-MWCNTs/CoONPs) and (F-SWCNTs/CoO NPs) deposited by drop- casting on an n-type porous silicon substrate. The two sensors perform high sensitivity to NO₂ gas at room temperatures. The analysis indicated that the (F-MWCNTs/CoONPs) have a better performance than (F-SWCNTs/CoONPs). The F-SWCNTs/CoONPs gas sensor shows high sensitivity (19.1 %) at RT with response time 17 sec, while F-MWCNTs/CoONPs gas sensor show better sensitivity (39 %) at RT with response time 13 sec. The device shows a very reproducible sensor p

This study explores the role of nanomaterials in the performance of asphalt binders and mixtures. Two commonly available nanomaterials, i.e., nanosilica (NS) and nanoalumina (NA), were used at contents of 0%, 2%, 4%, 6%, and 8% by weight of asphalt binder. A set of experiments was carried out at the binder level to investigate properties such as penetration, softening point, aging-related mass loss, nanomaterial dispersion (storage stability), and workability (rotational viscosity). In addition, the suitability of NS and NS was also assessed through the testing of nanomodified asphalt mixtures, which focused on Marshall properties, the resilient modulus, moisture susceptibility, permanent deformation, and fatigue resistance. The findings in

Despite the history of Baghdad city extends into a long history, most of the contemporary buildings of Baghdad have been shaped in the era of modernity. Furthermore, most of the buildings of modernity in Baghdad are types of modernity buildings in Iraq as a whole, and due to all the joints of change and development are taking place in Iraq starts from Baghdad. Accordingly, all selected buildings, which would be presented as case studies of modernity will be exclusively in Baghdad. Although the importance of this significant modernist product, which represents the identity of Baghdad, which should be preserved by the renewal and preservation policies, the problem of research was emerged as follow: new fin