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: 2011 volume:52 issue:3

Article
SPECTROSCOPIC CHARACTERIZATIONS OF ALPHA FETO PROTEIN BINDING WITH ITS ANTIBODY BY IRMA METHOD IN TISSUE’S HOMOGENATE OF SOME TYPES OF OVARIAN TUMORS
الخصائص الطيفية لإرتباط البروتين الجنيني- ألفا مع ضده بإستخدام تقنية الإختبار المناعي الإشعاعي المتري في مجانسات بعض أورام المبايض

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Abstract

Spectroscopic studies, in the ultraviolet region were carried out to characterize the binding of isolated AFP with its labeled antibody in human malignant germ cell ovarian tumor homogenates. Factors affecting the absorption properties of AFP, and the complex of isolated AFP with the labeled antibody such as pH, solvent polarity (solvent perturbation technique), spectrophotometric pH titration and thermal stability in the presence of different concentration of sodium chloride have been studied. The spectroscopic pH titration curves for human AFP and for the complex of isolated AFP with the labeled antibody gave pka of 5.7 and 7.3 for histidine residue, respectively, while 11.6 and 11.4 for tyrosine residue, respectively. Furthermore the study showed that 23.8% of histidine and 70.4 % of tyrosine residue are located on the surface of human AFP antigen, while these residues were located 38.0% and 31.0% on the surface of complex of the isolated AFP form.

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Article
STUDY OF MICELLIZATION AND MICROEMULSION FORMATION FOR SURFACE ACTIV AGENT IN OCTANOL AND WATER MIXTURE
دراسة تكوين المايسل والمستحلب الدقيق لمنشط السطح في مزيج الأوكتانول والماء

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A mixture of three components having different physical and chemical properties is represented by equilateral triangular diagram. Such a mixture produces various regions on the interior of the triangular diagram. A system in each apex of the triangle consists of two components. In this work, the effect of surface active agent on the micelle and microemulsion formation in a mixture, of octylphenyloxy-ethylene, octanol and water were studied at 25°C. This mixture exhibits three regions. The appearance of these regions well fit with approach that surface active agent can take several forms depending on their concentration in any mixture (22). The possible forms are monomer hexagonally ordered molecules or gonfeled micelles

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Article
EVALUATION OF THE TOXICITY OF DIFFERENT NICOTINE SULFATE CONCENTRATIONS IN CONTROLLING NYMPHAL INSTARS AND ADULTS OF CABBAGE APHID BREVICORYNE BRASSICAE (L.) ( HOMOPTERA: APHIDIDAE )
تقويم التاثير السمي لتراكيز مختلفة من مستخلص كبريتات النيكوتين في السيطرة على الاطوار Brevicoryne brassicae (L.) الحورية وبالغات مـَن اللهانـة

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Abstract

The aim of this project is to study the efficacy of nicotine (as nicotine sulfate) extracted from tobacco by- products of the Iraqi Tobacco and Cigarettes Industry against cabbage aphid Brevicoryne brassicae (L.). On the basis of LC50 values, laboratory data have indicated a positive correlation between these values and progress of insect life cycle . The LC50 values for the fourth nymphal instar were 4.9 more than first instar; while it was for apterae 6.5 times more than the first instar for nicotine sulfate. The alatae were more susceptible to insecticide than apterae, where LC50 values for apterae were 1.03 times more than that for alatae LC90 for nicotine sulfate on all stages follow the same trend as for LC50 but with higher values. Finally, we recommend the use of nicotine sulfate as an insecticide for the control of cabbage aphid instead of the widely used pesticides compounds which are environmental pollutants

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Article
EFFECT OF SOME CHEMICAL AND PHYSICAL FACTORS ON THE COCCI SHAPE FORMATION OF HELICOBACTER PYLORI ISOLATED FROM PATIENTS WITH DUODENUM ULCER
تأثير بعض العوامل الكيميائية والفيزيائية على تكوين الاشكال المكورة لبكتريا Helicobacter pylori المعزولة من المرضى المصابين بقرحة الاثنى عشري

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Helicobacter pylori was islotaed localy from patients with Duodenal Ulcer. Two biopsies were taken from each patient, the first used for isolation of H. pylori using ski row medium, the second used for rapid urease test. Optimum growth temperature was 37 cْ. Isolated H. pylori was identified according to bacterial shape, graw stain, biochemical test, sensitivity to cephalothin & resistance to nalidixic acid. The result showed that component of culture media, light, & oxygen are important factors affecting Hansformed from spiral to coccoid shapes. It has been noticed that using Brain – heart infusion a gar and blood a gar base with growth supplement give &5% blood, percentage transformation to coccoid shape was less than using the same culture media without blood and growth supplements. Results indicated that avoiding exposure of culture media to light and oxygen (more than 5%) maintain spiral shape of H. pylori for 20 – 30 days when stored at 4 cْ taking in consideration a pH of (6.9 – 8).

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Article
PROTECTIVE EFFECT OF VITAMIN E ON ACETAMINOPHEN–INDUCED HYPERLIPIDEMIA IN FEMALE RABBITS
التأثير الوقائي لفيتامين E على فرط الدهون المستحدث بالأسيتامينوفين في إناث الأرانب

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The protective effect of vitamin E against acetaminophen (paracetamol) induced hyperlipidemia in female rabbits was tested. Twenty female rabbits were randomly divided into four groups (five animals in each group). The first group was dosed with acetaminophen at 200 mg/kg (BW). The second group was dosed with 50 mg/kg. BW of vitamin E and the third group was treated with 200 mg/kg (BW) of acetaminophen and 50 mg/kg (BW) of vitamin E, while the last was administered with distilled water and considered as a control group. These animals were orally dosed using a micropipette for 14 days. The results showed that there was a significant (P<0.05) increase in serum cholesterol, triglycerides, low-density lipoprotein (LDL), very low-density lipoprotein (VLDL) concentrations and atherosclerosis index except high-density lipoprotein (HDL) which decreased significantly in the treated group with acetaminophen compared with the control group. On the other hand, these above-mentioned parameters decreased significantly (P<0.05) except HDL concentration in the group treated with vitamin E compared with the control group. Concerning the animals treated with acetaminophen and vitamin E, the results also showed that these above mentioned parameters decreased significantly (P<0.05) except HDL concentration compared with the group treated with acetaminophen and no significant (P≥0.05) difference in the above mentioned parameters compared with the control group. In conclusion, the antioxidant vitamin E may reduce the oxidative modification of LDL by acetaminophen and may be used as a therapeutic agent in preventing the development and progression of atherosclerosis.


Article
MONITORING HEAVY METALS, CATIONS AND ANIONS LEVELS AND ITS POSSIBLE HEALTH RISKS IN TIGRIS RIVER AT BAGHDAD REGION
مراقبة مستويات الفلزات الثقيلة والايونات الموجبة والسالبة وأخطارها الصحية المحتملة في مياه نهر دجلة في منطقة بغداد

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Abstract

Various heavy metals, cations and anions of the Tigris River water in Baghdad region were studied during the winter, spring, summer and autumn of 2009, for 4 sampling sites. In the present investigation the levels of studied heavy metals, cations and anions in the water samples were found in the range of (0.011-0.333 mg/L) for As, (undetectable-0.0043 mg/L) for Sb,( 0.011-0.080 mg/L) for Ti, (0.150-0.730 mg/L) for V, (0.01-1.06 mg/L) for Fe, (0.1-0.4 mg/L) for Zn, (0.011-0.15 mg/L) for Pb, (0.01-0.05 mg/L) for Cd, (0.01-0.04 mg/L) for Ni, (50-290 mg/L) for Ca, (97-270 mg/L) for Mg, (0.65-1.74 mg/L) for K, (11-38.33) for Na, (35-113 mg/L) for Cl, (150-256 mg/L) for HCO3, (96-479 mg/L) for SO4, (0.93-3.9 mg/L) for NO3 and (undetectable - 0.360 mg/L) for PO4. Some parameters like As, V, Fe, Pb, Cd, Mg and SO4 are higher than the values recommended in international and Iraqi criteria for drinking water, while the rest ions were within the acceptable limits. In general, the results confirmed that Tigris River at study area is slightly contaminated with some hazardous heavy metals especially Pb and Cd which have ability to biological concentration in organisms bodies and that might affect human health as well as the health of the ecosystem.

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Article
تأثير مستخلصات ازهار البيضاء لنبات الداوودي Chrysanthemum cineraiaefolium

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The production , purification and determination of (Pyrethrin I, II) from the white flowers of Chrysanthemum cineraiaefolium plant were performed. The results obtained was (450 ml) as concentrated crude extract from using (25gm) powdered flowers dissolved in (1300ml) hexane. This extract was divided in to three parts, the first part (A) was the concentrated crude extract which have the yellow-greenish colour, sticky and sharp odder, while the second part (B) was the (A) extract dissolved in (methanol 80%) which have pale – yellow colure and the third part (C) was the (B) extract with the activated charcoal, which was colourless extract. The results of HPLC analysis for determination, purification and quantity assessment for the three parts (A, B, C) were (73.33 %, 77.33 %, 91.41 % ) respectively, and the concentration rate of (Pyrethrin I) to (Pyrethrin II) reached nearly (70 and 30) respectively for the (A, B, C) extracts. The biological activity test for the two compound mentioned above was carried out as insecticide for repellence and killing the flour beetles during different times (minutes) of treatment, using seven different concentrations of this extracts. The results obtained show that when increasing of the concentration and the time of treatment, the killing percentage was increased, such as in the concentration { (1: 0.5) – (crude : alcohol) } during (10 minutes) was 98 % while, after (20 min) became 100%.

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Article
STUDY THE EFFECT OF PURIFIED CATECHINS OF GREEN TEA ON THE MOST IMPORTANT CAUSES OF BACTERIAL INFECTIONS OF THE URINARY TRACT AND SYNERGISTIC EFFECT
دراسة تأثير الكاتشين المنقى من الشاي الاخضر في أهم المسببات البكتيرية لالتهابات المجاري البولية والتأثير التآزري عليها

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Two hundred urine samples were collected from patients infected with acute and chronic urinary tract infection, 85 bacterial isolate were isolated from these samples and were diagnosed using biochemical tests and kit API test, most of them identified E.coli (23.5%) K.pneumoniae rate (17.6%). Isolates were selected E.coli and K.pneumoniae according to their isolation rate from urinary tract infection cases and their antibiotic resistance. The inhibition effect of the purified catechin from the green tea was studied when the isolates were grown in the following concentrations (25, 50,75, 100) mg/ml. The concentration of 100 mg/ml showed a high action against the two species. The combination effect of the purified catechin was estimated with both Amikacin and Gentamycin on the resistant isolates to these antibiotics (E.coli and K.pneumoniae) and has been compared to the minimum inhibitor concentration of the isolates before and after the confusion of antioxidants, as the effect of mixing Amikacin and Gentamycin with Catechin, it gave a synergic effect with Amikacin on two isolates, either Gentamycin gave synergic effect on K.pneumoniae.


Article
TENSILE STRENGTH STUDY OF UNSATURATED POLYESTER / POLYVINYL CHLORIDE COMPOSITES REINFORCED WITH GLASS FIBERS
دراسة متانة الشد لمتراكبات البولي استر غير المشبع⁄البولي فينيل كلورايد المسلحة بالياف الزجاج

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Tensile strength study of UPE/PVC composites reinforced with one and two layers of random glass fibers has been investigated. Hand lay up method was used to prepare sheets of UPE/PVC blends with different weight percentage of PVC(10%,20% and30%) Results show increasing in the values of maximum stresses, yield stresses and modulus of elasticity for UPE/PVC blends with increasing the weight percentage of the polyvinyl chloride (PVC) . UPE/PVC blends reinforced with one layer of glass fiber results show good mechanical properties for the composite which contain 20% PVC. Also the results show that composites reinforced with two layers of glass fiber randomly increasing in values of maximum stresses with increasing PVC percentage .

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Article
STUDYING TENSILE STRENGTH FOR EPOXY COMPOSITES REINFORCED WITH GLASS FIBERS
دراسة مقاومة الشد لمتراكبات الايبوكسي المسلح بالألياف الزجاجية

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Abstract

This research includes the studying of tensile resistance for composite materials reinforced with glass fibers (E-glass). Epoxy resin was used as matrix for the reinforced materials that consist of artificial glass fiber layers (woven roving) with directional 0-90ο and with the random direction. The sheets made of composite materials with a number of layers for both types of glass fibers with volume fraction 40% for reinforced materials. All these sheets were cut into samples with measurement 10X120 mm and with sample thickness dependent on the number of layers of glass fibers. Tensile resistance test samples were cut to study tensile resistance for these composite materials. The results and laboratory examinations for these composites show increasing the tensile resistance values for composites reinforced with glass fibers (woven roving) compared to the composites reinforced with glass fibers with the random direction.

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Article
MEROMORPHIC FUNCTIONS THAT SHARE
الدوال الميرومورفية التي لها حصة قيمة واحدة مع مشتقتها الأولى

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In this paper we study the uniqueness of meromorphic functions that share one value only with their derivatives. The results here are improved for the results in [1] and also we gave answer for open question in our paper.

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Article
UNSTEADY PRESSURE DROP AND HEAT TRANSFER OF MAGNETOHYDRODYNAMIC ANNULAR TWO-PHASE IN RECTANGULAR CHANNEL
الضغط اللامستقر وانتقال الحرارة لحقل جريان ممغنط ثنائي الطور في قناة مستطيلة

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An annular two-phase, steady and unsteady, flow model in which a conducting fluid flow under the action of magnetic field is concavely. Two models are presented, in the model one; the magnetic field is perpendicular to the long side of the channel, while in the model two is perpendicular to the short side. Also, we study, to some extent the single-phase liquid flow. It is found that the motion and heat transfer equations are controlled by different dimensionless parameters namely, Reynolds, Hartmann, Prandtl, and Poiseuille parameters. The Laplace transform technique is used to solve each of the motion and heat transfer equations. The effects of each of dimensionless parameters upon the velocity and heat transfer is analyzed. A comprehensive study for Model 1, and 2 is given. Also, a comparison study among steady, unsteady, single-phase, two-phase for Model 1, and Model 2 is considered.

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Article
DESIGN AND IMPLEMENT A TRANSPARENT INTERNET PROTOCOL PACKETS COMPRESSION SYSTEM
تصميم وتنفيذ نظام شفّاف لضغطِ رُزَمِ بروتوكولات الانترنيت

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The data compression process is an important aspect that should be given a good attention when dealing with slow computer networks. This paper introduces the design and implementation of a transparent compression system that can be utilized by Microsoft Windows to compress data exchanged among the computers through a Local Area Network (LAN). On each machine, this system transparently intercepts outgoing IP packets and compresses them. As well as it will transparently intercept incoming compressed IP packets and decompresses them.

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Article
A NEW IMPLEMENTATION TECHNIQUE FOR BUDDY SYSTEM
تقنية جديدة لتنفيذ نظام التبرعم

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Buddy system algorithm is dynamic memory control which is usually embedded in the memory management unit, which is a part of the most widely use modern operating systems. Dynamic memory management is an important and essential part of computer systems design. Efficient memory allocation, garbage collection and compaction are becoming increasingly more critical in parallel, distributed and real-time applications using object-oriented languages like C++ and Java. In this paper we present a technique that uses a Binary tree for the list of available memory blocks and show how this method can manage memory more efficiently and facilitate easy implementation of well known garbage collection techniques.

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Article
USING THE BAND RATIO CLASSIFICATION METHOD TO DETECT THE REGIONS THAT NEED TO REMOVE SEDIMENTATION IN TIGRIS RIVER
استخدام طريقة تصنيف نسبية الحزمة للكشف عن المناطق التي بحاجة لإزالة الترسبات في نهر دجلة

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LandSat Satellite ETM+ image have been analyzed to detect the different depths of regions inside the Tigris river in order to detect the regions that need to remove sedimentation in Baghdad in Iraq Country. The scene consisted of six bands (without the thermal band),It was captured in March 2001. The variance in depth is determined by applying the rationing technique on the bands 3 and 5.GIS 9.1 program is used to apply the rationing technique and determined the results.

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Article
AL-HAWIZEH MARSH MONITORING METHOD USING REMOTELY SENSED IMAGES
مراقبة هور الحويزة بطريقة استخدام الصور الفضائية

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The main objectives of the present research are of two goals; first, to define and locale the main cover types (components) of AL-Hawizeh Marshes, and second, to track and detect the changes encountered in these cover types (components) during the last three decades time episodes To fulfill these goals, LANDSAT and MODIS images were applied. The LANDSAT images (MSS-1973, TM-1990 and ETM+ 2002) were used to determine the Marshlands cover types before, during and after the Marsh destruction (marshes dehydrations). One MODIS image was selected to cover the main changes that have been happened in 2010. Programming; Supervised classifications (minimum distance classification) were applied for monitoring the mean changes that have been happened on the objectives of Al-Hawizeh Marsh.


Article
EVALUATION OF IMMUNE RESPONSE IN PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA. II: HUMORAL IMMUNE RESPONSE
تقييم الاستجابة المناعية في مرضى ابيضاض الدم اللمفي لمزمن. 2: الاستجابة المناعية الخلطية

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Chronic lymphocytic leukemia (CLL) is a hematologic malignancy characterized by progressive accumulation of lymphocytes. This study aimed to evaluate humoral immunity in patients with CLL via estimation of serum levels of immunoglobulins IgG, IgA, and IgM and two cytokines: interleukin-4 (IL-4) and interleukin-10 (IL-10). Blood samples were collected from 48 patients with CLL (28 treated and 20 untreated). Other 20 blood samples were collected from healthy individuals as control group. Single radial immune-diffusion assay was used to estimate the serum levels of immunoglobulins. Enzyme linked immunosorbent assay (ELISA) was used to estimate serum concentration of IL-4 and IL-10. The study showed unsignificant increase in serum concentration IgG and IL-10 while there was unsignificant decrease in IgA, IgM, and IL-4 in treated and untreated groups as compared with the healthy control group. These data indicates a little or unimportant effects of IL-4 and IL-10 on immunoglobulin production in studied patients.

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Article
ENTEROBIASIS AND ITS RELATIONSHIP WITH ENURESIS AMONG ONE OF ORPHANGE CARE CHILDREN IN BAGHDAD- IRAQ
الخمج بالدوده الدبوسية و علاقته بالتبول اللاأرادي في اطفال احدى دور رعاية الأيتام / بغداد-العراق

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The prevalence of Enterobiasis and Enuresis were screened in this study, to evaluate the possible relationship between each other, and to investigate age, gender related factors in fifty one orphanage Iraqi children their age (3-12) years, before and after albendazole treatment. The results showed that Enterobius vermicularis is one of the most frequent parasites in orphanages, the overall infection rate )84.31%) was reported in this study, and gender is less related with the prevalence of enterobiasis , the infection rate in males(55.81%) was higher than females(44.18%) , although there was no significant relation (p≤0.05) between gender and infection rate of enterobiasis , while a significant relationshp between enterobiasis and nocturnal enuresis were investigated (p≤0.05) , the percentage of children who had pinworm infection and enuresis was 58.82% before treatment, while the percentage after treatment with Albendazole was 11.76%. Questionnaire interviews were used to determine which of the children suffered from some clinical symptoms gathered with enuresis.

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