Table of content

Iraqi Journal of Science

المجلة العراقية للعلوم

ISSN: 00672904
Publisher: Baghdad University
Faculty: Science
Language: Arabic and English

This journal is Open Access

About

The Iraqi journal of science is a quarterly specified scientific journal issued by the Faculty of Science at the University of Baghdad. The members of the Editorial Board representing the Departments of Eight Scientific departments, college of science/ Baghdad University and its related units of research, all are professors, scientists with extensive experience and considerable skills in their field of science, as well as an advisory board in support composed of professors and scientists with great reputation in their field of science from other Colleges, universities, or research institutes. The specialty of publication includes the following fields:

1.Pure and Applied Physics.
2.Mathematical Sciences.
3.Computer Science and Information Technology.
4.Science of chemistry.
5.Bio-Science technologies.
6.Earth Sciences, geo-physics, and remote sensing.
7.Astronomy, Space Sciences, and Remote Sensing Unit.
8.Science and Research of tropical area

The visions, goals, and the mechanisms of the Iraqi Journal of Science is to publish scientific research sober in the areas of Applied and Pure Sciences and instructive Iraqi society, scientific research, scientific interest large to contribute to the development of various disciplines, which provides significant support to researchers in all scientific facilities to continue to support the development plans in Iraq.

Loading...
Contact info

Baghdad University
College of Science
Baghdad
Iraq
ijs@scbaghdad.edu.iq
07903375590
http://ijs.scbaghdad.edu.iq

Table of content: 2017 volume:58 issue:3C

Article
Synthesis, Identification of Some New Derivatives of Oxazpine, Thiazinone and Hydroquinazoline and Evaluation of Antibacterial Activity.
تحضير وتشخيص بعض المشتقات الجديده للأوكسازبين, ثايازينون وهايدروكوينازولين وتقييم الفعاليه المضاده للبكتيريا.

Loading...
Loading...
Abstract

This work includes synthesis of some new derivatives of Schiff bases as intermediate compounds. Through the reaction 1,4- phen ylene diamine with different aromatic aldehydes substituted by many different groups in acidic medium and absolute ethanol as a solvent to obtain the Schiff bases (1a-5a). These compounds are reacted with substituted aromatic carboxylic acids and anhydride to give three types of heterocyclic compounds. The first line includes direct reaction with maleic anhydride under certain conditions to give new derivatives of oxazpine(6b-10b). The second line includes reaction of compounds (1a-5a) with 2-mercapto benzoic acid in the presence of triethyl amine as a catalyst and dry benzene as a solvent to give new derivatives of thiazinone(11c-15c). While the third line involved reaction the Schiff bases (1a-5a) with anthranilic acid in dioxane as solvent to give new derivatives of hydroquinazoline (16d-20d). The structures of these new synthesized compounds were identified by spectral methods their [FTIR, 1HNMR, 13C-NMR] and measurements of some physical properties and some specific reactions. Furthermore the effects of synthesized compounds on some strains of bacteria were studied.

Keywords


Article
Synthesis and Polymerization of Several New Maleimides Linked to Schiff Bases and Their Copolymers with Acrylonitrile
تحضير وبلمرة عدد من المالي ايمايدات الجديدة المرتبطة بقواعد شيف وبوليمراتها المشتركة مع الأكريلونايتريل

Loading...
Loading...
Abstract

A series of new maleimide monomers substituted with Schiff base moieties were synthesized via acid-catalyzed condensation of 3-(N-maleimidyl)phenyl hydrazide with aromatic aldehydes and ketones. The newly synthesized monomers were introduced in free radical chain growth homopolymerization producing five new polymaleimides with pendent Schiff base moieties .The new monomers were introduced also in free radical chain growth copolymerization with acrylonitrile producing new five copolymaleimides containing pendent Schiff base moieties. The new homopolymers and copolymers are of great importance since incorporation of bulky Schiff base moieties in their repeating units exhibit them better solubility and processing properties which made them suitable for a variety of important applications.


Article
Effects of NAA and BA on Lily (lilium spp.) Propagation by Scaling
تأثير NAA و BA في اكثار نبات اليليوم (lilium spp.) بالقشور

Loading...
Loading...
Abstract

The experiment was executed at the Botanical Garden- college of Science, university of Baghdad, Iraq. The period was from November 2016 to March 2017, on the scales of lilium ( Peral Carolina) belonging to the asiatic hybrids imported from the Netherlands. The scales of lily treated with naphthyl acetic acid (NAA)(0,25,50) mg/l and benzyl aminopurine (BA)(0,10,20) mg/l twice after planting to improve flowering characters of hybrid lily cultures . It was observed that at the concentration BA 20 mg/l and NAA 50 mg/l increased the number of bulbues formed about 0.8% and the number of bulbs as 11.3%, while the root length decreased with the same concentration about 5.7%. The fresh weight of the buds, the length of the buds and the number of roots at the concentration of BA 20 mg/l and NAA 0 mg/l was increased about (0.6%, 2.2%, 66%), respectively . The fresh weight of bulblets increase as 0.8% when the BA concentration was 10 mg/l and NAA 50 mg/l. Therefore we can conclude that the best concentration recommended for hormonal interference is BA 20 mg /l and NAA 50 mg /l, where the number of bulbs formed and number of bulblets was increased.


Article
Histological study of the Isotretinoin drug effect on the intrauterine prenatal development in the pregnant mice
دراسة نسيجية لتأثير عقار ايزوتريتاينون في التطور الجنيني داخل رحم الاناث الحوامل للفئران البيض

Loading...
Loading...
Abstract

The isotretinoin drug is 13-cis-retinoic acid, is the treatment of severe acne and some skin cancers and used for dermatological conditions, this study was designed to detect the toxic role of the isotretinoin on the intrauterine development after implantation in albino mice during pregnancy. There are very little studies which indicating the side-effect of this drug on intra-uterine growth, so in the present research we tried to study the toxic effect of isotretinoin on the endometrial changes of uterus during the 2nd. and 3rd. trimester of gestation in pregnant mice after treatment with single chronic dose of the Isotretinoin drug (20 mg/B.wt) from first day of gestation until 21 days the last day of gestation. The present study examination of the uterus during the particular gestational days were perceived some fault in the endometrium tissue of the uterus since the hyperplasia of the lining epithelium of the uterus and thickening of the endometrium because of propagation of the endometrial glands and stroma and widening of the endometrial cavity in both control and treated groups of pregnant mice after the 7 day of gestation, we found some morphological changes appear in the pregnant mothers like, more thickness skin and change color of the body fur from white to yellow-whitish color, and less physical active and drop in appetite. The morphological changes in the pregnant mice after treated with (20mg / kg B.wt), isotretinoin dose, appear a significant decrease (p≤0.05) in the body weight. The histological results show a decreased in the numbers of the papillary projects of the endometrial tissue and change with few in numbers of the endometrial glands and loss stroma with thickness of the lining epithelium and this may because the resorption of the embryos inside the uterus compared to the control group. The present study clearly determine that the effect of isotretinoin on the histopathology of the uterus through pregnancy cause toxic on the embryos and result in resorption and damage the implanted embryos at altered particular gestational days in mice, as a result isotretinoin should be taking with attention and avoided at first post-implantation phase of gestation.

Keywords


Article
Assessment of Heavy Metals Pollution in Sediment of Shatt Al-Hilla by Using Ecological Indices
تقييم التلوث بالمعادن الثقيلة في رواسب شط الحلة بواسطة استخدام بعض الدلائل البيئية

Loading...
Loading...
Abstract

Surficial sediment samples were collected from four stations at Shatt Al-Hilla from Western Zoer area to Almaimirh in Babylon province for the period from August 2016 to April 2017.The level of contamination in the sediments of Shatt Al-Hilla, by Lead (Pb), Copper (Cu), Nickle (Ni), Manganese (Mn), Zinc (Zn), Arsenic (As), and Cobalt (Co) has been evaluated using the index of Geo-accumulation (I-Geo), Contamination factor (CF), pollution load index (PLI) and Potential ecological risk index (Eire). In the present study the levels of heavy metals in sediment samples were found in the range of (10-15.22 ppm) for Pb, (25.6-46.09 ppm) for Cu,(144.9-413.7 ppm) for Ni, (666.1- 906.3 ppm) for Mn, (68.69- 119.2 ppm) for Zn, for As (5.22- 8.25 ppm) and for Co (10.3- 68.44 ppm). The values of the Pollution Load Index (PLI) were founded at station 1 unpolluted by whole studied heavy metals, while the (PLI) value at other stations 2, 3 and 4 were more than 1 which means that polluted by heavy metals. According to contamination factor (CF), station 1 considered as moderate contamination by Ni, while the station 2, 3 and 4considered as considerable contamination by Ni, while all stations were low contamination by Zn and Co. Depending on the results of Geoaccumulation index (I-Geo) all stations considered slightly polluted by Ni, while station 1 and 2 considered slightly polluted by Co. The values of the Pollution Load Index (PLI) were varied between unpolluted in station 1 and polluted in other studied stations. The values of the Potential Ecological Risk (Eir) and (RI) for all heavy metals indicated that these metals do not pose a threat to the environment in the study area.


Article
Clinical and Histopathological Study on Dog's Tumors in Iraq
دراسة سريرية و نسيجية لاورام الكلاب في العراق

Loading...
Loading...
Abstract

The study was conducted on twenty dogs from variety breeds to estimate the incidence of tumor mass and determine the risk factors of survey to cases of a year in veterinary hospital in Baghdad. The most common clinical signs were, ulceration, bleeding into lesions in addition to drowsiness, anorexia, fever and the others were depended tumor's location in dog's body like lameness, lacrimation and bloody constipation etc. The results showed 70% of the infected dogs were working with military forces and 30% of them were pet dogs and we found that the highest percentage of tumor accrued in dogs aged more than 10 years and the females recorded 60% of infection. Terrier breed had the highest percentage of infection (30%) followed by German shepherd (25%). the most tumor affected part of the body were mammary glands in females and the limbs in both gender (25% each one) and followed by the other sites, the histopathology picture had recorded seven types of malignant tumors in (skin, intestine and mammary glands) more frequent was Sequmas cell carcinoma 35% Adenocarcinoma 20%. Some dogs had more than one type of cancer, and some cases had recorded of benign tumors other cases had only transformed tissue but not cancer.


Article
Evaluation of some plant secondary metabolites activity to control algae
تقييم فعالية نواتج الايض الثانوي لبعض النباتات للسيطرة على الطحالب

Loading...
Loading...
Abstract

This study includes isolation , purification and identification of algae from different aquatic environments in Baghdad. Two different plant species belonging to different families were selected which were Citrilluscolocynthus and Cordiamyxa for their fruits and fruits samples respectively. Crude extracts were extracted from each plant and their antialgal activity were evaluated.Different concentrations (5,15,25) mg/ml of these extracts were prepared and their antagonistic activity was studied, and the resulted inhibition effects in ( %) of concentration of chlorophyll(a) after 12 days was evaluated. Results showed that Chloroccumhumicola was the most sensitive to these extracts. However, Anabaena circinalis was less sensitive than all other algae used in this study. Also showed that phenol was the most active against algae and terpene had less antagonistic activity comparing with all other extracts.

Keywords

Evaluation --- Activity --- Algae --- metabolites --- control


Article
Synthesis and Characteristics of Ag, Cu/Au Core/Shell Nanoparticles Produced by Pulse Laser Ablation
تحضير وخصائص الجسيمات النانوية لAg,Cu/Au (لب- قشرة) المستحصلة بواسطة استئصال الليزر النبضي

Loading...
Loading...
Abstract

Colloidal dispersions of mono Au, Ag , Cu and bimetallic Ag/Au and Cu/Au core/shell nanoparticles are synthesized by pulsed laser ablation of metals targets immersed in 5 ml distilled water (DW). Surface Plasmon resonance (SPR) and particle sizes are characterized by UV-VIS and HRTEM, the X-ray diffraction shows the structure of core/shell. The Surface Plasmon resonance of the produced nanoparticles solutions for silver nanoparticles about 402 nm and copper nanoparticles about 636 nm. While for the core-shell observed two peaks of SPR, Ag/Au core/shell at (406-516) nm, and Cu/Au core/shell observed one peak at 565nm, because the region of gold and copper close together. The shape and particle size have been confirmed by HRTEM measurement, average size is around 12nm for Ag NPs, and 14nm for Cu NPs, while the average size is around 11nm for Ag/Au core/shell NPs and around 13nm for Cu/Au core/shell NPs. Zeta potential (ZP) results proved the silver nanoparticle is more stabilizing (-23.11 mV) than other noble metal nanoparticles,while Ag/Au core/shell is more stabilizing(-27.77mV) with comparison with Cu/Au core/shell which less stabilizing.


Article
Calculation of the Longitudinal Electron Scattering Form Factors for the 19F and 27Al nuclei
حساب عوامل التشكل للاستطارة الالكترونية الطولية للنوى19F و27Al

Loading...
Loading...
Abstract

For investigating the inelastic longitudinal electron scattering form factors F (q)'s. An expression for the transition charge density is studied where the deformation in nuclear collective modes is taken into consideration besides the shell model transition density. The inelastic longitudinal C2 and C4 form factors are calculated using this transition charge density for the 19F and 27Al nuclei. In this work, the core polarization transition density is evaluated by adopting the shape of Tassie model together with the derived form of the ground state two-body charge density distributions (2BCDD's). It is noticed that the core polarization effects which represent the collective modes are essential in obtaining a remarkable agreement between the calculated inelastic longitudinal F (q)'s and those of experimental data for all considered nuclei.


Article
Band Energy Outline of NiO:Au /Si Thin-Film for Solar Cell

Authors: Raied K. Jamal رائد كامل جمال
Pages: 1668-1674
Loading...
Loading...
Abstract

In this paper the effects of the contact material on the photovoltaic (PV) characteristics of p-NiO:Au/n-Si solar cells fabricated by using the pulsed laser deposition (PLD) technique had been studied. It shown the p-NiO:Au/n-Si could be successfully used to construct and improve the performance of solar cells by using Au. The conversion efficiency was increased comparable with p-NiO/n-Si solar cells. In this case the NiO:Au layer acts as a hole collector as well as a barrier for charge recombination.


Article
Effect of Water on Some Mechanical Properties of Epoxy Blends Reinforced With Different Weight Fractions of Nano Titanium Oxide and Nano Silica
تأثير الغمر بالماء على بعض الخواص الميكانيكية لخلائط الايبوكسي المدعمة بكسور وزنية مختلفة من أوكسيد التيتانيوم النانوي والسيليكا النانوية

Authors: Rana Mahdi Salih رنا مهدي صالح
Pages: 1675-1685
Loading...
Loading...
Abstract

Polymer composites were prepared using epoxy resin (EP) and unsaturated polyester (UPE) as a blend matrices, which were mixed together in different percentages (starting from 90:10) of (epoxy/polyester) respectively, and ending with (50:50) of (epoxy/polyester). The optimum mixing ratio (OMR) of the components was decided upon the results of the impact strength value of these blending ratio, which showed the highest value of (16.3) KJ/m2 for the blending ratio (80:20) of (EP/UPE) respectively. The blend with (OMR) was chosen to be reinforced with three different weight fractions of reinforcement; the 1st one was reinforced with nano titanium oxide (TiO2) with a weight fraction (2% wt.), the 2nd one was reinforced with both nano (TiO2) and surface modified nano silica particles (SiO2) with weight fractions (2% & 0.5%) respectively, and the 3rd one was reinforced with nano (TiO2) and surface modified (SiO2) with weight fractions (2% & 1%) respectively. The tested mechanical properties were (flexural strength, impact strength, hardness, and water uptake). Hand lay-up technique was used to prepare the samples, and a magnetic stirrer was used to ensure maximum homogeneity of the nano particles in the blend. All fabricated samples were exposed to water for 10 weeks to investigate the effect of nano powders addition on diffusivity and maximum water uptake, obvious degradation in mechanical properties of the composite consisting of (blend matrix/TiO2 reinforcement) and (blend matrix/TiO2+SiO2 reinforcement) were observed as a result of liquid uptake with less severe impact, but more effect on flexural strength and shore D hardness. Fick’s 2nd law was used to explain diffusion mechanism. All the results were discussed.


Article
Structural and Optical Properties of Annealed TiO2 Powder Synthesized by Hydrothermal Method
الخصائص الهيكلية والبصرية من مسحوق ثاني أكسيد التيتانيوم النانوي توليفها بواسطة طريقة الحرارية المائية

Loading...
Loading...
Abstract

Titanium dioxide (TiO2) Nano powder has been synthesized by hydrothermal method. The reaction took place between titanium tetrachloride (TiCI4) and mixture solution consisted of deionized water and ethanol, in the ratio (3:7) respectively. Structure and surface morphology of TiO2 Nano powder at different annealing temperatures in the range 200-800°C for 120 min were characterized by X-ray diffraction (XRD), Atomic Force Microscope (AFM), Scanning Electron Microscopy (SEM), FT-IR and UV/visible spectroscopy measurements. The results show that with an increase in annealing temperature, the value of the intensity of (110) peak for rutile phase increases while the value of the full-width at half maximum (FWHM) decreases, and the band gap decreases with increasing temperature.


Article
Manufacture a Battery-like Supercapacitors with Electrodes of Graphene
تصنيــع متسعـــات فائقــة شبيـه-بالبطاريــة بأقطــاب من الكرافيــن

Loading...
Loading...
Abstract

A graphene-based battery-like supercapacitors (SC) were manufactured. The prime objective of this research was to use environmentally friendly and natural materials as possible for the SC electrodes, electrolytes and the separators. The SC were designed in cells like batteries, three types of plastic cases were used as SC cells; the electrode and electrolyte materials were mixed together and a solution formed and placed in the designed cell. The electrode material was graphene powder with different weights mixed with different volumes of electrolytes (which were: lemon juice, apple vinegar, H2SO4 and HNO3), and the separators used were Polytetrafluoroethylene polymer (PTFE) and cellulose based parchment paper (PP). Charging circuit was set, the cell SC charged with different charging rates and the voltage window was determined for each cell with different electrode/electrolyte/separator combination. Three of the fabricated cell SC were discharged through 0.5V LED light. The discharging rates were regular and the best was (1.22 volts discharged in 26 minutes). The capacitance of the discharged SC was calculated. Also the mixed solutions were tested by XRD analysis and the surface microscopy done by scanning electron microscope (SEM). The XRD spectra for the mixed solutions shows high crystallinity for the graphene with two distinct peaks at (002) and (004) direction.


Article
The possibility of manufacturing bricks from Quaternary Deposits from Al-Muthanna Governorate/ southern Iraq
امكانية تصنيع الطابوق من ترسبات العصر الرباعي في محافظة المثنى /جنوب العراق

Loading...
Loading...
Abstract

This study is concerned with the identification of the validity of the Recent sediments deposited in the Playa for the purpose of making the laboratory bricks by extrusion and pressing. The steps followed in this study included the formation and then burning of the pyramids at (950-1100) C° for one hour of maturity to determine their applicability to the brick industry. The study area is located in Al Muthanna province, south of Iraq. It is located south of the district of Samawah at a distance of 80 km and to the north-west of Salman district, 64 kilometers south of Baghdad, represented by three hosts: (DHS 1, DH2 and S). The results of the chemical analysis of the study samples showed that they consist of the following major oxides: SiO2 = (39.34-42.82) TiO2 = (0.52-0.76) Na2O3 = (0.97-1.22) Fe2O3 = (4.19-5.89) CaO = (14.78-19.4) K2O = (0.91-1.14) Al2O3 = (8.02-9.85) MgO = (3.85-5.95) L.O.I = (16.31-19.32) silica SiO2 represented the highest ratio followed by Al2O3. Was manufactured 36 samples of the laboratory were manufactured and prepared by extrusion method were measured in dimensions (7 * 3.5 * 2.5) cm by extruding method and were burned at (950-1100) C° for the purpose of conducting physical and mechanical checks on them including Linear and volume shrinkage, color, Water absorption, Efforescence, and compressive strength. The results of these tests showed a decrease in water absorption and Efforescence, a decrease in the values of compressive strength with increased burning temperature, decreased Linearand volume shrinkage in most samples and increased in other samples with increasing burning temperature. In addition, 12 samples were made of the cylindrical laboratory size (diameter 50 mm, height 60 mm) in semi-dry pressing method, and were burned at (950-1100) C° for the purpose of physical and mechanical tests, color, Water absorption, Efforescence, and compressive strength. The results of these tests showed a decrease in water absorption and Efforescence and an increase in the values of compressive resistance while increasing the temperature of burning, while the colors of the samples ranged from light brown and yellow or pale yellow to white. The results of physical assays were met Linear and volume shrinkage, color, Water absorption and Efforescence. As well as mechanical tests: compressive strength results were in accordance with the Iraqi standard for this industry where the data of the results of this study showed the validity of these samples for the industry mentioned above.

Keywords

Catered --- Class --- Brick


Article
Some Generalizations of Semisimple Gamma Rings
بعض التعميمات للمقاسات شبه البسيطة من نمط كاما

Loading...
Loading...
Abstract

In this paper we introduce and study the concepts of semisimple gamma modules , regular gamma modules and fully idempotent gamma modules as a generalization of semisimple Γ-ring. An R_Γ-module M is called fully R_Γ-idempotent (semisimple , regular) if N=(N:_(R_Γ ) M)ΓN for all R_Γ-submodule N of M (every R_Γ-submodule is a direct summand, for each m∈M, there exists f∈〖Hom〗_(R_Γ ) (M,R) and γ∈Γ such that m=f(m)γm. We study some properties and relationships between them.


Article
Data integrity enhancement for the encryption of color images based on CRC64 technique using multiple look-up tables
تحسين سلامة البيانات لتشفير الصور الملونة على أساس تقنية CRC64 باستخدام جداول متعددة

Loading...
Loading...
Abstract

Communication is one of the vast and rapidly growing fields of engineering, where increasing the efficiency of communication by overcoming the external electromagnetic sources and noise is considered a challenging task. To achieve confidentiality for color image transmission over the noisy communication channels a proposed algorithm is presented for image encryption using AES algorithm. This algorithm combined with error detections using Cyclic Redundancy Check (CRC) to preserve the integrity of the encrypted data. This paper presents an error detection method uses Cyclic Redundancy Check (CRC), the CRC value can be generated by two methods: Serial and Parallel CRC Implementation. The proposed algorithm for the encryption and error detection using parallel CRC64 (Slicing-by-4 algorithm) implementation with multiple look table approach for the encrypted image. The goal of the proposed algorithm optimizes the size of the redundant bits needed to attach to the original data for the purpose of error detection; this reduction is considered necessary to meet the restriction for some computer architectures. Furthermore, it is suitable for implementing in software rather than in hardware. The proposed algorithm uses different tested images by added different noise ratios (1% and 5%) of total images size to study the noise effect on the encrypted images. The noise added on single and multi bits position and study the effect on the output results. The obtained results shown that the small size of the image the large CRC64 affected by noise while the large size of image yields a stable or fixed number of affected CRC64.


Article
Surface Shape Descriptors on 3D Faces
واصفات شكل السطح للوجوه ثلاثية الابعاد

Loading...
Loading...
Abstract

The general objective of surface shape descriptors techniques is to categorize several surface shapes from collection data. Gaussian (K) and Mean (H) curvatures are the most broadly utilized indicators for surface shape characterization in collection image analysis. This paper explains the details of some descriptions (K and H), The discriminating power of 3D descriptors taken away from 3D surfaces (faces) is analyzed and present the experiment results of applying these descriptions on 3D face (with polygon mesh and point cloud representations). The results shows that Gaussian and Mean curvatures are important to discover unique points on the 3d surface (face) and the experiment result shows that these curvatures are very useful for some special features extraction for eyes and nose detection.


Article
Header-Words Based for Printed Arabic Document Images Retrieval System
نظام لاسترجاع الوثائق العربية المطبوعة بالاعتماد على كلمات الرأس

Loading...
Loading...
Abstract

Printed Arabic document image retrieval is a very important and needed system for many companies, governments and various users. In this paper, a printed Arabic document images retrieval system based on spotting the header words of official Arabic documents is proposed. The proposed system uses an efficient segmentation, preprocessing methods and an accurate proposed feature extraction method in order to prepare the document for classification process. Besides that, Support Vector Machine (SVM) is used for classification. The experiments show the system achieved best results of accuracy that is 96.8% by using polynomial kernel of SVM classifier.

Table of content: volume: issue: