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.

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Contact info

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

Table of content: 2009 volume:50 issue:3

Article
PREPARATION AND IDENTIFICATION OF SOME PVA –METAL COMPLEXES
تحضير وتشخيص بعض معقدات متعدد فنيل الكحول

Authors: Nada Ali Al-Najjar
Pages: 271-278
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Abstract

Abstract
Some metal complexes of Poly (vinyl alcohol) (PVA) of the formula [M(PVA-oxi)2 (NO3)2] [M= Mn(II), Fe(II), Co(II) and Ni(II)] and vanadyl complex with formula [VO(PVA-oxi)2SO4] were prepared and characterized by atomic absorption, IR, UV-Vis spectroscopic techniques, molar conductance, magnetic susceptibility as well as the relative viscosity.
It was found that the prepared complexes were formed only with partially oxidized PVA, which has carbonyl and hydroxylic groups through PVA chains and then react with metal ion in N,N-dimethylformamide as a solvent in (1:2) molar ratio (metal : Ligand) in neutral or slightly basic solution.
The results showed that the ligand (PVA-oxi) was bidentate ligand coordinated with metal ion through the oxygen atoms of carbonyl and hydroxylic groups of its chain, with an octahedral geometry around the metal ions for all the complexes.
The prepared polymeric complexes are thermally stable (above 360C) which inhanced their industrial applications.

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Article
USING OF SOME HALOORGANOPHOSPHINES AND STUDYING THEIR SYNERGETIC EFFECT WITH CHLORINATED RUBBER TO RETARD FLAMMABILITY AND COMBUSITION OF EPOXYAND UNSATURATED POLYESTER RESINS
استخدام بعض معقدات الفسفور العضوية الهالوجينية ودراسة فعلها التاَزري مع المطاط المكلور لتثبيط لهوبية واعاقة اشتعال راتنجي الايبوكسي والبولي استر غير المشبع

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Abstract

Five additives were used in this work namely: tetra ethyl ammonium tribromophenyl phosphine (I), tetra ethyl ammonium chlorodibromophenyl phosphine (II) chlorinated rubber (III), a mixture of 50% by weight of each of I and III (additive IV), a mixture of 50% by weight of each of II and III (additiveV) in order to study the synergetic effect of these compounds as flame retardants with epoxy and unsaturated polyester resins. The results showed that all these additives are active and the synergetic effect was very clear in which the additives IV and V gave the best results. The retarding activity of these compounds is following the order:- IV > V > I > II > III The tests depended on the ASTM ( in which the limiting oxygen index (LOI), rate of burning (R.B) average extent of burning (AEB), average time of burning( ATB) and the maximum height of flame(H) were measured) were used to evaluate the activity of the additives.

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Article
تأثير مزيج من مستخلص بذور الحرمل Peganum harmala واوراق نبات الشيح Artemisia herba-alba ضد الاميبا الحالة للنسيج Entamoeba histolytica في الزجاج.

Authors: فوزية احمد الشنوي
Pages: 290-295
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Abstract

Entamoeba histolytica was isolated from bloody mucoid stools of patients with amebic dysentery and cultivated on Lock-egg medium to which human serum was added. The parasites were maintained in culture for two weeks during which separate subcultures were prepared. The effect of a water extract and of an alcoholic extract of seeds of Peganum harmala and leaves of Artemisia herba-alba on the viability of E. histolytica was tested. The effect of a combination of the water extracts and of the alcoholic extracts of both plants on amebic viability was also tested at concentrations of 1000 mg / ml and at 1500 mg / ml for two hours. The results showed a marked effect of both combinations of water extracts and of alcoholic extracts on viability of E. histolytica in vitro. The effect was greater at the higher concentration. The highest killing effect was obtained when the extract concentration was 1500 mg / ml , reaching 98.5 % for the alcoholic extracts and 89 % for the water extract. The anti-amebic effect may be due to the high content of alkaloids and saponoids in Peganum seeds complemented by the volatile oils and phenols in Artemisia leaves. المقدمة

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Article
الحساسية الإشعاعية واستحداث العقم الجنسي في ذبابة ثمار القرعيات Dacus ciliatus (Loew): I- تشعيع البيض واليرقات

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Abstract

The results of the present investigation indicated that exposing the eggs of Dacus ciliatus to incremented doses of gamma ray, showed that eggs were highly sensitive. The hatchability was significantly reduced with the increase of doses, in comparison with the control treatment. The negative effect of irradiation was continued to the subsequent developmental stages, and on adult emergence and longevity. The dose of 10 Gy reduced significantly the fecundity and hatchability at all mating types, and there was no potential to induce complete sterility in the emerged adults. Prepupal larvae were less radiosensitive than the eggs. Adult emergence at 10 and 20 Gy was 88 and 56% respectively. The fecundity was reduced significantly in two mating types at 10 and 20 Gy. Hatchability of all types of mating was reduced significantly at 20 Gy; hence it did not reach to the level of induction of complete sexual sterility.

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Article
STUDY THE EFFECT OF DIFFERENT CONCENTRATION OF SOLUBLE OZONE IN TWO KIND OF PATHOGENIC BACTERIA & TWO KIND OF PATHOGENIC FUNGI ASSOCIATED WITH SKIN INFECTIONS IN VITRO
دراسة تأثير التراكيز المختلفة للاوزون المذاب في الماء في نوعين من البكتيريا الممرضة ونوعين من الفطريات الممرضة للجلد خارج الجسم الحي

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Abstract

This preliminary in vitro study was conducted to investigate the effect of ozonated water on certain microorganisms (Bacteria&fungi) associated with wound & burn infection by using different concentrations of ozonated water (20,40 and 60 µg/ml) on these microorganisms . The results revealed that the percentages of inhibition were (10,20 &40%) for Staphylococcus aureus , (0,15&30%) for Pseudomonas aeruginosa and (25,50&65%) for Trichophyton mentagrophytes and finally (20,40 &60 %) for Candida albicans . Results also indicated that the percentages of inhibition were increased when we using more volume of ozonated water at concentration 60 µg/ml , in which all the microorganisms in this study inhibited completely when the volume of ozonated water used was 12ml , While the percentages of inhibition for T.mentagrophytes reached 95% only even when the volume of ozonated water used was 12 ml at concentration 60 µg/ml.

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Article
STUDY ON THE TOXICITY OF SUMICIDIN ,FENVALERATE ,AND ITS RESIDUES IN LARVAE OF COMMON CARP FISH Cyprinus carpio
دراسة سمية ٍمبيد الحشرات السوميسيدين Fenvalerate و متبقياته في يرقات اسماك الكاربCyprinus carpio L.

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Abstract

Results of laboratory investigation in larvae of common carp fish , Cyprinus carpio exposed to Sumicidin ,Fenvalerate, and its residue, normally used as air sprays to control insects, that this insecticide was toxic to fish larvae. After exposure to the insecticide, some larvae were immediately killed ; others showed abnormal behavior and eventually either died or recovered depending on sumicidin dose received.The LC50 of Sumicidin to fish larvae exposed to insecticide during a period of 96 hour was 0.024 mg/L for fish 4-6 gm

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Article
EXTRACTION AND PURIFICATION OF PYOVERDINE PRODUCE BY LOCALLY ISOLATED Pseudomonas fluorescens And Its Ability As A Biological Control Agent
استخلاص وتنقية صبغة البايوفردين من بكتريا Pseudomonas fluorescens المعزولة محلياًوامكانية استخدامها كعامل سيطرة بيولوجية *

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Abstract

Pyoverdine was extracted from the local isolate ( PFAS14 ) after 10 hours of incubation time and reached maximum production after 46 hours. The extraction of pyoverdine was done as ferric-pyoverdine complex by organic solvent and precipitate with salt then purify with ion exchange and gel filteration chromatography. The maximum absorbance of pyoverdine was at 370 nm., while the maximum absorbance of ferric-pyoverdine complex was at 400nm. The pyoverdine showed inhibition activity against pathogenic fungi, bacteria and C. albicans, the supernatant of (PFAS14) isolate was also active while the ferric-pyoverdine complex does not show any activity. Curring the plasmid of PFAS14 isolate do not effect the production of pyoverdine and this confirms that the structural and regulator genes responsible for pyoverdine production were mediate by chromosome.

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Article
PHYSIOCHEMICAL AND PARTIAL PURIFICATION OF CRUDE ALKALOID COMPOUNDS IN BERRIES, LEAVES AND ROOTS OF ( Solanum nigrum) PLANTS
الكشف عن المركبات الكيميائية والتنقية الجزئية للقلويدات في مستخلصات( ثمار واوراق وجذور ) نبات عنب الذيب ( Solanum nigrum- )

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Abstract

This study included extraction, physiochemical and partial purification of some crud alkaloide compounds in berries, leaves and roots of (Solanum nigrum) Solanaceae plants, which is locally named ( ANAB Al-THEA'B ) . It's the most important medicinal herb, which is widely distribution in IRAQ and used in folklore medicine. The phytochemical investigation of the plant was designed to evaluate alkaloid contente in berries, leaves and roots. Four major crud alkaloid were isolated and partially purified as follows, ( a, b, c and d ). The yield was 8.73%, 9.5%, 0.9% and 0.33% respectively. Acid hydrolysis was performed using limited concentration of HCl or H2SO4 to obtain the aglycon part of the previously separated component as ( A, B, C and D ), the yield was 5.5%, 6.5%, 0.8 % , 0.3% respectively. The content of the active biological compounds such as (alkaloids, glycosides, saponins, coumarins, tannins and resins) was mainly showed in berries and leaves, but low in the roots, in which the detection of glycosides was negative.

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Article
CALCULATIONS OF (γ-n) REACTION CROSS-SECTION AND GAMMA RAY INCINERATION OF 144Ce, 144Nd, 151Sm AND 155Eu
حساباتُ مساحةِ المقطعِ العرضّيِ لِتفاعُلِ (كاما – نِيوترونْ) ومعدل الإحراق بواسطة أشعة كاما للنوى 144Ce، 144Nd، 151Sm و 155Eu

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Abstract

The evaluation of the (γ,n) cross section for radioactive fission products has been done in the present paper. The current research deals with heavy isotopes resulting from fission reactor, namely, 144Ce, 144Nd, 151Sm and 155Eu. The range of energy lays in the region of energy near the giant dipole resonance, from the threshold energy up to around 30 MeV. The present radioactive isotopes were chosen as part of the radioactive waste from 235U fission. Total cross section results then were found and calculated, and used to calculate the number of incinerated nuclei. By varying the gamma-ray fluxes and repeating the calculations, the present method shows efficiency in reducing the radioactivity of these isotopes. The results given in the present paper showed direct proportion between incinerated nuclei and the strength of the incident gamma-ray flux, which are consistent with earlier work.

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Article
STRUCTURE, AC CONDUCTIVITY AND POWER LOSSIN PVC AND PMMA POLYMERS
التركيب والتوصيلية المتناوبة و فقد القدرة للبوليمرين .PMMA ,PVC

Authors: Shuja-Aldeen B. Aziz --- Hameed M. Ahmed
Pages: 349-354
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Abstract

Frequency and temperature dependence of AC-conductivity ( ) and power loss ( ) for polyvinyl chloride (PVC) and poly (methyl methacrylate) (PMMA) were studied (in the frequency range 1KHz-1MHz and in the temperature range 20-100°C). It has been found that the AC-conductivity increases with increasing frequency and temperature for both samples. The value of the exponent is less than 1 for both samples as determined experimentally. The power loss which is in the form of heat, is increased for both samples with increasing frequency and temperature. The IR spectra shows the presence of C-Cl and C=O bond, which are the main sources for power loss.

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Article
THE MONTHLY VARIATIONS OF DISCHARGE AND EFFECT THAT ON A TOTAL DISSOLVE SUSPENDED AND SALINITY IN SHATT AL-ARAB RIVER (South of Iraq).
التباين الشهري للتصريف وتأثيره على الحمولة النهرية الذائبة والملوحة فيشط العرب(جنوب العراق)

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Abstract

Abstract The aim of this study is to explain the role of the discharge of Shatt Al-Arab River , two water years have been chosen to show this effect (2006 & 2007) to know the Effect of discharge on total dissolve suspended and salinity variations in (Al-Sallow section) which show all river‘s efficacious from dawn stream and up stream . The results display that the flood discharge is high in comparison with ebb discharge, (T.D.S) and salinity is a high in comparison with last studies, and there was a difference between the phase of flood and ebb, reason of the marine and river sources, another difference(yearly-monthly) in these characteristics because of effect Water Balance from river sources of Shatt Al-Arab River and due to terminate the rule of Ahwar region as a settlement basin of Tigris and Euphrates sediments loads. in addition to that the progress of Salt Wedge procession in Shatt Al-Arab from Arabian Gulf with shortage discharge

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Article
SEDIMENTOLOGICAL STUDIES OF THE MUKDADIYA FORMATION SOUTH—EAST OF BADRA
دراسة رسوبيه لتكوين المقداديه جنوب-شرق بدره

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Abstract

The upper of Mukdadiya Formation (Pliocene), which exposed south-east of Badra on the west of the anticline. This part of the Formation ranging between 80m to 120m in the study area. Two sedimentolgical sections were studied in the area. The Formation composed mainly of clastics sediments. These clastics consist of conglomerate, sandstone and mudstone facies. The conglomerate facies mostly are with trough cross bedding and normal graded bedding. The matrix content decrease upwards within the conglomerate beds. The sandstone facies is mostly of very coarse to coarse sand grains, andmostly with trough cross bedding. The bed thickness of the both above facies varies vertically and laterally from one location to another as well as in the same section. The mudstone shows no sedimentary structures and constant thickness, most of the mudstone beds have light brown color; few clay beds have light green color. The conglomerate facies with normal graded bedding represent the channel river deposits while large scale trough cross bedding conglomerate beds represent the longitudinal channel bar deposits, and the trough cross bedding sandstone facies represent a typical river channel point bars deposites.The mudstone beds are river flood plain deposits. The conglomerate, sandstone and mudstone facies repetitions in number of cycles in all the studied section indicate that these deposits are production of braided rivers, the bed thickness and the trough cross bedding size and pebble size as well as the sand content is very good indication of typical variation of braided rivers activities throw the deposition time.

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Article
HOFFMAN INDEX OF MANIFOLDS
دليل هوفمان للمطويات

Authors: Afraa Radhi Sadek --- Adil G. Naaum
Pages: 376-383
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Abstract

For a connected topological space M we define the homeomorphism and period noncoincidence indices of M, each of them is topological invariant reflecting the abundance of fixed point free self homeomorphisms and periodic point free self maps defined on M respectively.
We give some results for computing each of these indices and we give some examples and some results relating these indices with Hoffman index.

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Article
THE COMPOSITION OPERATOR ON HARDY SPACE
المؤثر التركيبي

Authors: Eiman H.Abood
Pages: 384-389
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Abstract

In this paper, we characterize the unitary composition operator on the Hardy space where is a special automorphism of a unit open disk U such that . In addition to we study the compactness and essential normality of and give some other partial results.

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Article
EFFICIENT AND FAST DISTORTED CHARACTER RECOGNITION ALGORITHM
خوارزمية كفوءة وسريعة لتمييز الحروف

Authors: Wejdan A. Amer
Pages: 390-395
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An algorithm to recognize distorted Machine and handwritten characters is proposed. It uses a feature point extraction-based recognition approach. A new verification scheme, which deals with this problem, is presented. A new feature extractor set is introduced. This research explores best sets of feature extraction techniques and studies the accuracy and speed of the suggested procedures. Finally, experimental results on one database are presented, their results showing the robustness of the algorithm using small database.

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Article
NETWORK NODE INTRUSION DETECTION SYSTEM
منظومة كشف اختراق عقدة شبكة

Authors: Suleiman S. Fawzy --- Abeer M. Yousif
Pages: 396-402
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Computer network technologies have grown rapidly in the last few decades. With the increased use of networked computers for critical applications, computer intrusions have been increased and became a significant threat to these systems and, thus Intrusion Detection Systems (IDS) have become essential addition to security infrastructure of most organizations. This paper presents the design and implementation of a Network Node Intrusion Detection System (NNIDS) that support IPv4 protocol. It detects a variety of attacks which are directed to the resources of filing system. The implied detection rules are based on matching the predefined normal behavior of the system with the characteristics of the detected user’s events.
Several simulated attacks have been sent to the proposed system to test it. Test shows that most of the attacks can be detected with acceptable ratios of false

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Article
AGRICULTURAL SATELLITE IMAGE CLASSIFICATION USING AUTOMATIC COLOR EXTRACTING TECHNIQUE
تصنيف الصور الفضائية الزراعية بإستعمال تقانة استقطاع اللون آلياً

Authors: Rafid J. Tawfeeq
Pages: 403-408
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Abstract

Automatic features extraction remains an open research area in the satellite images classification. While many algorithms had proposed for features extraction, none of them solved the problem completely. This paper presented a new technique for increasing the accuracy of the classification depending on color extraction from selected band combination image and an acceptable classification results obtained by comparing with traditional classification technique (parallelepiped technique).

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Article
HIGH RESOLUTION DEM PRODUCTION USING MODIFIED INTERPOLATION METHODS (QUADRANT & OCTANT)
إنتاج نموذج الارتفاع الرقمي بدقة عالية باستخدام طرق استكمالية مطورة (رباعية - ثمانية)

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A digital elevation model (DEM) is a digital file of terrain elevations for ground positions. It is a raster representation of the elevation of the ground and objects, such as buildings and trees, with pixel values in the images, as well as the wide range of uses and applications. In this research, the Easting, Northing, and Elevation, data set had been gathered, they collected by performing field survey using global Positioning system (GPS). Modified an interpolation method had been presented it depends on Quadrant and Octant methods to produce a DEM surface. Some classic techniques such as Nearest neighbor and universal Kriging, have been used for comparison purpose with the results of the new technique. A new technique has been used it depends on multilayer processing, mosaic model have been applied between the layers to perform the high resolution DEM. A 3-D image has been produced as one of the most important application of DEM.

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