Table of content

Baghdad Science Journal

مجلة بغداد للعلوم

ISSN: 20788665 24117986
Publisher: Baghdad University
Faculty: Science for Women
Language: Arabic and English

This journal is Open Access

About

A Scientific and Evaluated Journal Published by the College of Science for Women, University of Baghdad
Date of First issue(2004)
No.of Issue per year(4)
No.of papers per issue (25)
No. Of issue published between 2004-2017(58) issue
This Journal publish paper in Arabic and English in area of Biology, Chemistry, Physics, Mathematics and Computer.

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Contact info

Phone Number:07800709148
E-mail: bsj@csw.uobaghdad.edu.iq
E-mail: baghdadscij@csw.uobaghdad.edu.iq
E-mail:bjs.csw@gmail.com

Table of content: 2017 volume:14 issue:4

Article
Effect of the Silver Nanoparticles on the Histology of Albino Mice Ovaries
تأثير جسيمات الفضة النانوية في نسجية مبايض الفئران البيض

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The aim of study is to identify the histological changes in ovaries of the albino mice exposed to silver nanoparticles. Sixty adult females were collected and exposures by 4000 p.p.m. and 50-150 nm in size, Females were divided into 3treated groups. The concentration dosage was (1, 1.5 and 2) p.p.m. of silver nanoparticles for 7, 14 and 21 days as exposure periods as well as control group which treated by normal saline. Treated groups appeared different histopathological changes, it is depending on the concentration of silver nanoparticles and the period of exposure. These changes were included congestion in the blood vessels, hemorrhage, hyaline degeneration, fatty degeneration, pyknosis, necrosis as well as fusion of cells in follicular cells, amyloid proteins in the blood vessels and Fatty necrosis.


Article
Morphological Study of Pollen Grains and Seeds in Eight Species from the Family Cruciferae in Iraq
تهدف الدراسة إلى التعرف على التغيرات النسجية لمبيض الفئران البيض Albino Mice المتعرضة لجسيمات الفضة النانوية .Silver Nano Particles (SNP) جمعت 60انثى بالغة ,جرعت بجسيمات الفضة النانوية Silver Nano Particles (SNP) بتركيز 4000p.p.m. وحجم 50- 150 نانومتر. قسمت الإناث الى 3 مجاميع معاملة جرعت بتراكيز 1p.p.m., 1.5p.p.m, 2p.p.m. لمدة 7,14 ,21 يوما فضلا عن مجموعة السيطرة التي عوملت بالمحلول الفسيولوجي Normal Saline . أظهرت المجاميع المجرعة بجسيمات الفضةالنانوية حصول تغيرات مرضية نسجية تختلف باختلاف التراكيزالمجرعة والمدة الزمنية هذه التغيرات تمثلت بأحتقان (Congestion) الاوعية الدموية ,وحصول نزف(Hemorrhage) وتنكس زجاجي (hyaline degeneration)وتنكس دهني(Fatty Degeneration) وتغلظ النوى (Pyknosis)وتنخر((Necrosis فضلاعن حصول اندماج الخلاياالجريبية ((fusion cell وحصول ترسب للبروتينات المتمثلة بال Amyloidداخل الأوعية الدموية وحصول تنخردهني Fatty necrosis ))

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The shape dimensions and characteristics of pollen grains and seeds have importance in distinguish among species. Therefore, the present study included morphological characteristics of pollen grains and seeds for eight species belonging to eight genera of the family Brassicaceae and these species are: Alliaria petiolata (M.Bieb) Cavara et Grand, Aubrieta parviflora Boiss, Cardamine hirsuta L., Crambe orientalis L., Eromobium aegyptiacum (Spreng.) Schweinf.et Asch.ex Boiss., Parlatoria cakiloidea Boiss., Sterigmostemum sulphureum (Banksetsol.) Bornm. Neotorularia torulosa (Desf.) Hedge & J. Leonard. The pollen grains were studied in morphological and full measurements were taken, the study showed that the majority of the pollen grains was tricolpate and shape was determined to be prolate, sub prolate and prolate spheroidal. In terms of size, the pollen grains of the studied species varied between small size, medium size, the basic surface pattern of the studied pollen grains was reticulate. The study showed that the morphological characteristics of the seeds varied in shape between oblong-elliptic, lenticular- discoid, ovoid, suborbicular and obovoid. The location of hillum was a difference between terminal and basal position and the surface sculpture of the seed surface varied between a longitudinal striate prominent, faintly reticulate, reticulate, pustular, faintly reticulate and pustular and a smooth. The seeds also varied in color and dimensions, existence of wing in the studied species.


Article
The Efficiency of Using Ozone Gas and Heat to Control Larvae and Adult Stage of Red Flour Beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
كفاءة استعمال غاز الاوزون والحرارة في مكافحة دور اليرقات والبالغات لخنافس الطحين الحمراء Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

Authors: F. A. Sabeat فلاح عبود سابط
Pages: 677-681
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Abstract

The effect of ozone gas with temperatures 35. 40 and 45 Celsius to control on larval and adult stages of Tribolium castaneum was tested and at time of exposure 1.0, 3.0, 7.0, 9.0, 11.0, 13.0 hours and the level of relative humidity prevailing during the test 45 ± 1%. Results showed significant differences between the exposure times, when the percentage of mortality 100% between larvae (primary, intermediate and advanced) in the treatment effect at a temperature of 35 Celsius with ozone gas at exposure time to 9.0, 11.0, 11.0 hours for the three ages respectively, and adult (male and female) in the same treatment when the three heat degrees had given ratios the total mortality reached 100% of both males at exposure time to 7.0 ,3.0, 1.0 hour respectively and females at exposure time 9.0 ,7.0 ,1.0 hour respectively, While completely failed under the effect of a heat treatment at temperatures of 35 Celsius for both stages respectively, while the effect was clear when the temperature is 45 Celsius where the of total mortality of 100% when the heat treatment of the stage of the larval and adult at the time 7.0, 3.1, 1.0 hour respectively. This means that the combined effect of ozone gas with temperatures has resulted in the reduction of the time needed to get the total mortality in both insect stages and significantly influential and that mortality rates in the two stages were increasingly higher degree of exposure used heat and high heat was the lead in reducing the time of exposure and even access to the total mortality.


Article
Biological Control of Acaudalerodes Rachipora (Singh) (Hemiptera: Alerodidae) by the Entomopathogenic Fungi on in Field
السيطرة الحيوية للذبابة السوداء Acaudalerodes rachipora (Hemiptera:Aleyrodidae) بإستعمال فطر ممرض Beuveria bassiana على السدر حقلياً

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This study was conducted in the College of Agriculture fields /University of Baghdad, during Autumn 2013. This study was aimed to examine the mortality rate on the all black fly stages of Acaudalerodes rachipora Singh) by the biotic fungus Beuveria bassiana. The results of a preliminary survey showed that the samples of Ziziphus spaina christi were infested by blakflies in Agriculture collage during Autumn seasons of 2013 , the presence of species of black flies A. rachipora on the lower surface of the leaf, the study aimed to study and research the effects of fungus B. bassiana on black fly A. rachipora. After six days of treatment results showed the continued superiority 106 spore / ml trends in the western, southern and eastern being 34.64, 31.77 and 20.8% respectively, while outweigh the moral fungus concentration 108, which was treated by insect instars in the direction north by killing 26.32% on the rest concentrations of fungus, which was treated by insect instars to the same direction the latter, note from the results above the high mortality rates with time as increased rates of initial mortality rates,. Finally reflected clearly outweigh the concentration of 108 fungus spore / ml in all directions western, southern, northern and eastern mortality rates 65.35, 62.84, 50.89 and 46.34%, respectively, compared with mortality rates made by the concentrations of other used in the experiment of the directions of the four that did not show significant differences in their impact on the roles of insect and thus increased mortality rates in the field with the time. We recommend conducting further field studies of fungus to determine the extent of efficiency in the field, according to local conditions and to determine its role in regulating the population of black flies and study the compatibility of the fungus with other control methods.


Article
Measurement of Indoor Radon Gas Concentration in same Region of Baghdad Governorate Using CR-39 Nuclear Track Detector
قياس تركيز غاز الرادون داخل الابنية في بعض مناطق محافظة بغداد بأستعمال كاشف الاثر النووي (CR-39)

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In this research the activity of radon gas in air in Baghad governorate,Iraq, using “alpha-emitters track registration (CR-39) track detector were measured. This measurement was done for selected areas from Baghdad Governorate, The results obtained shows that the highest average concentrations for Rn-222 is (179.077 Bq/m^3) which was recorded within Al-Shaaib city and less average concentrations was (15.79 Bq/m^3) in the nearby residential area of Baghdad International Airport and the overall average concentrations is (86.508 Bq/m^3) for these regions. Then the radon concentration was measured annual effective dose calculated from radon concentration and found in range from 0.4031 mSv/y to 4.5179 mSv /y with an average value of 2.1824 mSv/y. The annual effective dose of radon was within the allowed international limits.


Article
Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
التركيب المجتمعي الطحالب القاعية في نظام المياه الجارية - محافظة كربلاء – العراق

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This study focused on benthic algae (epipelic and attached algae on concrete lining stream) in Bani-Hassan stream in Holly Karbala, Iraq. The qualitative and quantitative studies of benthic algae were done by collecting 240 samples from five sites in the study area for the period from December 2012 to November 2013. Also, the environmental variables of the stream were examined in term of temporary and spatial. The results showed that the stream was alkaline, hard, oligohaline and a well aerated. The total nitrogen to the total phosphorus (TN: TP) ratio indicates nitrogen limitation. 129 species of benthic algae belonging to 57 genera were identified. Bacillariophyceae (diatoms) was the predominant taxon (95 species) followed by Chlorophyceae (16 species), Cyanophyceae (14 species), Euglenophyceae (3 species) and Pyrophyceae (one species). Some genera were found throughout the study period: Nitzschia, Navicula, Cymbella, Gomphonema, Surirella, Cocconeis, Aulacoseira, Oscillatoria, Lyngbya, Spirulina, and ‏ Scenedesmus. Site 3 recorded the highest total number of algae in spring 2013, and the lowest total number was at site 5 in Autumn 2013. The chlorophyll-a concentration did not match the total number of algae.


Article
Comparison among Populations of Mosquitoes Culex quinquefasciatus Say by using Geometric Morphometric Technique from Different Regions of Iraq
المقارنة بين المجتمعات السكانية لبعوض الكيولكسCulex quinquefasciatus بأستخدام المقياس الهندسي من مناطق مختلفة من العراق

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The geometric morphometric technique was used to study the variables in the shape and size wings of different populations of mosquitoes Culex quinquefasciatus from different Iraqi provinces Babylon, Baghdad and Wasit. The results showed that the average of centroid size were 366, 387.5 and 407.4 Micron in Babylon, Baghdad and Kut, respectively. The statistical analysis showed that there were no significant differences in the average of centroid size of all specimens and they belong to the same species


Article
Determination of the Level of some Adipokines in Hypo-and Hyperthyroids Patients in Baghdad City
تعيين مستوى بعض السايتوكينات الدهنية في مرضى قلة وفرط افراز الدرقية في مدينة بغداد

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Determination of the level of adipokines (obestatin, vaspin, tumor necrosis factor- and interleukin-6)in hypo-and hyperthyroid patients from Educational Baghdad Hospital in Baghdad City was investigated. Fifty patients with hypothyroidism and Fifty patients with hyperthyroidism were selected. A control group of thirty euthyroid persons was included. Blood was collected by vein puncture and serum was separated and stored at –20C. Adipokines (obestatin, vaspin, tumor necrosis factor- and interleukin-6) were estimated using ELISA method. The findings show a significant (p<0.05) increase in obestatin level in hypothyroid patients, while there is no significant difference in hyperthyroid patientsas compared with the euthyroid subjects. In addition, this study demonstrated a significant (p<0.05) increase in vaspin means in hypothyroid patients compared with euthyroid group. In hyperthyroid patients, there is a significant (p<0.05) decrease in vaspin level in comparison with euthyroid subjects. Furthermore, there is a significant (p<0.05) increase in tumor necrosis factor- level in hypothyroid and hyperthyroid patients as compared with the euthyroid subjects. The results of this study also explain a significant (p<0.05) increase in interleukin-6 level in hyperthyroid patients, while there is non-significant difference in hypothyroid patients compared with the euthyroid subjects. It is concluded from this study that the levels of interleukin-6 and tumor necrosis factor-  increased in hyperthyroidism and decreased in hypothyroidism. Obestatin and vaspin were increased significantly in hypothyroid patients.


Article
The Innovative Method for Vaccine Preparation Against Multidrug Resistant and Virulence Acinetobacter baumannii Iraqi Isolates
طريقة مبتكرة لتحضير لقاح ضد A. baumannii ذات مقاومة متعددة وضارية لعزلات عراقية

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The expanding of the medically important diseases created by multidrug-resistant Acinetobacter baumannii warrants the evolve a new methodology for prevention includes vaccination and treatment. Totally of forty-five clinical isolates identified as A.baumannii were obtained from hospitalized patients from three hospital in Baghdad City during the period from February 2016 to August 2016. Followed by diagnosing using different methods. Every strain was tested for susceptibility testing also some important virulence factorswere detected. Two isolates were chosen for the immunization and vaccine model, the first one remittent for most antibiotics except one are too virulence (strong) and the second is less virulent and resistance (weak).Enzyme-linked immunosorbent assaywas used for assessments of Toll like receptor 4,and Toll like receptor 2 concentrations in mouse serum at 14, 21 and 28 days of immunization. Results proved that the strong isolate showed resistance to all antibiotics except one and positive to all virulence factors except one, while the weak isolate resistance to Ceftriaxone, Cefotaxime, positive to tow virulence factors. Mice were intramuscular inoculated with strong and weak isolate. There are high significant differences when using strong A.baumannii strong in the level of TLR4 and there was not an important variation among the use of strong and weak isolation in the level of TLR2.Finaly,the yield refers to the TLR4 plays a key role in innate sensing with multidrug resistance isolate immunization, whereas TLR 2 shows it gives the same level of stimulation during immunization with both strains but lesser concentration than TLR4, so the inactivated with MDR isolate has a potential for development as a candidate vaccine for strong protection against MDR isolate infections.


Article
Inhibitory Effect of Bacteriophages Isolated from Sewage Water in the City of Kirkuk on some Types of Human Pathogenic Bacteria
التأثير المثبط للفيجات المعزولة من مياه المجاري في مدينة كركوك على بعض أنواع البكتيريا المسببة للأمراض البشرية

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Most approaches to combat antibiotic resistant bacteria concentrate on discovering new antibiotics or modifying existing ones. However, one of the most promising alternatives is the use of bacteriophages. This study was focused on the isolation of bacteriophages that are specific to some of commonly human pathogens namely E. coli, Streptococcus pyogenes, Staphylococcus aureus, Proteus mirabilis, Pseudomonas aeruginosa, Salmonella spp. and Klebsiella pneumoniae. These bacteriophages were isolated from sewages that were collected from four different locations in Kirkuk City. Apart from S. pyogenes, bacteriophages specific to all tested bacteria were successfully isolated and tested for their effectiveness by spot test. The most effective bacteriophages that were isolated from sewages and sewage water of Al-Jumhori Hospital compared to other sites. It is concluded that the sewage water of hospitals represents a perfect environment for these bacteriophages.


Article
A Study of Zooplankton Community in Dukan Lake, Kurdistan Region-Iraq, with a New Record of Craspedacusta sowerbii Lankester (1880) Medusa (Cnidaria: Hydrozoa)
دراسة مجتمع الهائمات الحيوانية في بحيرة دوكان، أقليم كوردستان العراق مع تسجيل جديد للنوع Craspedacusta sowerbii Lankestr (1880)

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A study of Zooplankton community has been carried out at four selected sites on Dukan Lake. Samples of water and zooplankton were collected monthly for the period from July 2015 to February 2016. Some physical and chemical properties of water were studied and the results showed that the air temperature were ranged from 0 to 36.16 °C, water temperature ranged from 2.83 to 34.66 °C, hydrogen ion concentration of studied sites were found to lie in alkaline side, it was ranged between 6.87 to 8.57, electrical conductivity ranged from 190.79 to 850.08 µs.cm­¹, turbidity ranged from 0.9-7.7 NTU, and dissolved oxygen from 3.3 to 6.8 mg.l-¹ while BOD5 were ranged from 0.53 to 34.66 mg.l-¹. Concerning to the zooplankton, 37 species were identified which belonged to Cladocera (48.38%), Copepod (43.28%), Rotifera (8.23%), Targigrada (0.08%) and Cnidaria (0.1%). The medusa of Craspedacusta sowerbii Lankester (1880) was recorded for the first time in Iraq. Regarding to zooplankton community, rotifer were ranged between 0 to 690.91 ind.m-3, Copepoda from 54.55 to 5927.27 ind.m-3 and Cladocera ranged from 18.18 to 6072.73 ind.m-3. According to Shanon-Weiner index, species diversity for zooplankton invertebrates was ranged from 0.325 to 1.091 bits/ind. Jaccard’s similarity index showed that the highest similarity was recorded between site (1) and site (4) with 40.74%.


Article
Synthesis of Silver Nanoparticles from Malva parviflora Extract and Effect on Ecto-5'- Nucleotidase(5'-NT), ADA and AMPDA Enzymes in Sera of Patients with Arthrosclerosis
تحضيرالفضة النانوية من مستخلص نبات الخباز والتأثير على Ecto-5'- نوكليوتيداز(5'-NT)، ADAو AMPDA الانزيمات في مصول المرضى الذين يعانون من تصلب الشرايين

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The present research included synthesis of silver nanoparticle from(1*10-3,1*10-4 and1*10-5) M aqueous AgNO3 solution through the extract of M.parviflora reducing agent. In the process of synthesizing silver nanoparticles we detected a rapid reduction of silver ions leading to the formation of stable crystalline silver nanoparticles in the solution. The characteristics of silver nanoparticles were studied by using UV-Visible absorption spectroscopy, and atomic force microscope (AFM) analysis. The AFM measurements showed that the average size of silver nanoparticles synthesized using (1*10-3,1*10-4 and1*10-5) M aqueous AgNO3 solution through the extract of M.parviflora were 102 to 114nm. UV-Vis spectra of the aqueous medium containing silver nanoparticles showed a surface peak at 220nm and 445nm for (1*10-3,1*10-4 and1*10-5) M aqueous AgNO3 solution through the extract of M.parviflora. The study of nanoparticles due to the possible application for the development of new technologies such as exhibited inhibitory effects on Ecto-5'- Nucleotidase (5'-NT), ADA and AMPDA enzymes in Sera of control and Patients with Arthrosclerosis. Further studies on other biological activities are required to exploit their full potential.


Article
The Effect of Anesthesia on Thyroid Hormones and Cortisol Levels Following Major Urological Surgery
تأثير التخدير على مستويات هورمونات الدرقية والكورتيزول بعد الجراحات الكبرى للمسالك البولية

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This study was designed to evaluate the effect of anesthesia on thyroid hormones (T3, T4, rT3), thyrotropin(TSH), and cortisol levels in patients undergoing major urological surgery. The study included fifty patients scheduled for elective major urological surgery where 70% of the patients underwent general anesthesia, while30% underwent regional anesthesia. All patients were in stable control general conditions. The study showed that the thyroid hormones, thyrotropin and cortisol levels were affected with general anesthesia more than regional. The levels of these hormones responded to anesthetics and surgical stresses. This response was thought to be mainly mediated by afferent neurogenic impulses from the area of injury. Therefore, abolition of sensory as well as autonomic afferent stimuli by neurogenic blockaded types of anesthesia such as (epidural anesthesia) that may help in reducing the excretion and metabolic response to surgery.


Article
New Synthesis of Cyclic Imide Compounds for Ampicillin Drug and Studying Their Biological Activity
تحضير مركبات حلقية ايميدية جديدة لدواء الامبيسلين ودراسة فعاليتها البايولوجية

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Some new cyclic imides are prepared by the reaction of ampicillin drug with different cyclic anhydrides as a first step to form amic acids for ampicillin drug. The second step includes the reaction of prepared amic acids with acetic anhydride and anhydrous sodium acetate with heating in THF as a solvent to give cyclic imide compounds. These compounds are identified by melting points, FT-IR, 1H-NMR, and biological activity


Article
Synthesis and Characterization of Some Metal Complexes of [4-Methoxy-N-(pyrimidine-2-ylcarbamothioyl)benzamide]
تحضير وتشخيص بعض المعقدات الفلزية مع ] 4- ميثوكسي- N -(بيرميدين- 2-يل كارباموثايويل) بنزاميد[

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A new ligand [4-Methoxy -N-(pyrimidine-2-ylcarbamothioyl) benzamide] (MPB) was synthesized by reactioniofi(4-Methoxyibenzoyliisothiocyanate)withi(2-aminopyri-midine). The Ligand was characterized by elemental micro analysis (C.H.N.S),(FT-IR) (UV- Vis) and (1Hi,13CNMR)spectra. Some transition metals complexes of this ligand were prepared and characterized by (FT-IR, UV-Vis) spectra conductivity measurements magnetic susceptibility and atomic absorption. From the obtained results the molecular formula of all complexes was suggested to be [M(MPB)2Cl2] (M+2i=Cu, Mn, Co ,Ni ,Zn ,Cd and Hg),the proposed geometrical structure for all complexes was an octahedral


Article
CFIA-Turbidimetric and Photometric Determination of Vitamin B9 (Folic acid) Using LEDs as a Source of Irradiation and Two Solar Cells as an Energy Transducer
التحليل بالحقن الجرياني المستمر للقياس الفوتوني والتعكري لتقدير فيتامينB9 )حامض الفوليك( بأستخدام ثنائيات وصلة باعثة للضوء كمصدر تشعيع واثنان من الخلايا الشمسية كمحولة طاقة

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A specific, sensitive and simple method was used for the determination of: vitamin B9 (Folic acid) in pure and pharmaceutical formulations using continuous flow injection analysis. The method is based on formation of ion pair compound between folic acid and ammonium molybdate in an aqueous medium to obtain a gray precipitate complex, using homemade; Ayah-6SX1-ST-2D solar cell CFI Analyzer. Optimum parameters was studied to increase the sensitivity for developed method. The linear range for the calibration graph was 0.01-0.6 mMol.L-1 of vitamin B9 and LOD was 131.994 ng/sample with correlation coefficient ( r ) of 0.9810, RSD% was lower than 0.1%, (n=9) for the determination of vitamin B9 at concentration (0.07and 0.5) mMol.L-1 respectively. The developed method was applied successfully for the determination of vitamin B9 in pharmaceutical tablets. A comparison was made between two methods: developed method and the classical UV spectrophotometric method at ʎmax=255 nm, by using the standard addition method via the use of paired t-test. It showed that there was no significant difference between the developed method and the classical method for determination vitamin B9 at 95% confidence level.


Article
Synthesis New Liquid Selective Electrodes of Ciprofloxacin Hydrochloride for Determination Ciprofloxacin in Pure form and Pharmaceuticals Preparation.
تحضير أقطاب جديدة انتقائية سائلة لسيبروفلوكساسين هيدروكلورايد في المادة النقية والمستحضرات الصيدلانية

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New membrane electrodes for determination of ciprofloxacin hydrochloride were prepared depending on ciprofloxacin hydrochloride - phosphotungstic acid (CFH-PT) as an active material and these electrodes were made with three plasticizers: Di-octylphenylphosphonate(DOPH), Di-butyl phosphate (DBP)Tri-n-butyl phosphate(TBP), in PVC matrix. One of the ciprofloxacin electrodes was gave Nernstian slope equal to 57.21 mV/ decade for DOPH membrane with concentration range from 1.5×10-5 to1.0×10-1 M, and detection limit equal to 1.5×10-6 M .Lifetime was 93 days. Non- Nernstian responses equal to 39.40 and 30.70 mV/ decade for membranes DBP, TBP, respectively. These electrodes were gave concentration range from 1.0× 10-5 to 1.0×10-2 and from 4.0×10-5 to 1.0×10-2 M,respectively. Detection limits were 7.0×10-6, and 1.7×10-6M, respectively. Lifetimes were 5,2 days, respectively. Also selectivity, influence of PH and samples analysis of ciprofloxacin in a pharmaceutical preparations were studied.


Article
Effect of Diffusion Temperature on the some Electrical Properties of CdS:In Thin Films Prepared by Vacuum Evaporation
تأثير درجة الانتشار على بعض الخصائص الكهربائية لغشاء CdS:In المحضر بطريقة التبخير الحراري

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CdS films were prepared by thermal evaporation technique at thickness 1 µm on glass substrates and these films were doped with indium (3%) by thermal diffusion method. The electrical properties of these have been investigated in the range of diffusion temperature (473-623 K)> Activation energy is increased with diffusion temperature unless at 623 K activation energy had been decreased. Hall effect results have shown that all the films n-type except at 573 and 623 K and with increase diffusion temperature both of concentration and mobility carriers were increased.


Article
Construction and Operation of Solar Energy Dish for Water Heating
بناء وتشغيل الصحن الشمسي لغرض تسخين الماء

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Construction and operation of (2 m) parabolic solar dish for hot water application were illustrated. The heater was designed to supply hot water up to 100 oC using the clean solar thermal energy. The system includes the design and construction of solar tracking unit in order to increase system performance. Experimental test results, which obtained from clear and sunny day, refer to highly energy-conversion efficiency and promising a well-performed water heating system.


Article
Preparation and Characterization of Lead Oxide Nanoparticles by Laser Ablation as Antibacterial Agent
تحضير وتشخيص جسيمات اوكسيد الرصاص النانويه بواسطه الاستئصال بالليزر كمضاد بكتيري

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In this work, lead oxide nanoparticles were prepared by laser ablation of lead target immersed in deionized water by using pulsed Nd:YAG laser with laser energy 400 mJ/pulse and different laser pulses. The chemical bonding of lead oxide nps was investigated by Fourier Transform Infrared (FTIR); surface morphology and optical properties were investigated by Scanning Electron Microscope (SEM) and UV-Visible spectroscopy respectively, and the size effect of lead oxide nanoparticles was studied on its antibacterial action against two types of bacteria Gram-negitive (Escherichia coli) and Gram-positive (Staphylococcusaurus) by diffusion method. The antibacterial property results show that the antibacterial activity of the Lead oxide NPs was inversely proportional to the size of the nanoparticles in both Gram-negative and Gram-positive, and also it has been found that Gram-positive bacteria possess have greater sensitivity and less resistance to the lead oxide nanoparticles compared with Gram-negative bacteria.


Article
Bayes and Non-Bayes Estimation Methods for the Parameter of Maxwell-Boltzmann Distribution
طرائق التقدير البيزية والغير بيزية لمعلمة توزيع ماكسويل-بولتزمان

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In this paper, point estimation for parameter θ of Maxwell-Boltzmann distribution has been investigated by using simulation technique, to estimate the parameter by two sections methods; the first section includes Non-Bayesian estimation methods, such as (Maximum Likelihood estimator method, and Moment estimator method), while the second section includes standard Bayesian estimation method, using two different priors (Inverse Chi-Square and Jeffrey) such as (standard Bayes estimator, and Bayes estimator based on Jeffrey's prior). Comparisons among these methods were made by employing mean square error measure. Simulation technique for different sample sizes has been used to compare between these methods.


Article
On Fully Stable Banach Algebra Modules Relative to an Ideal
مقاسات بناخ الاجبرا تامة الاستقرارية بالنسبة الى مثالي

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Abstract

In this paper, the concept of fully stable Banach Algebra modules relative to an ideal has been introduced. Let A be an algebra, X is called fully stable Banach A-module relative to ideal K of A, if for every submodule Y of X and for each multiplier θ:Y⟶X such that θ(Y)⊆Y+KX. Their properties and other characterizations for this concept have been studied


Article
Revaluation of Student Failure Reasons Using Non-Additive Methods
اعادة تقييم اسباب رسوب الطلبة باستخدام الطرق غير القابلة للاضافة

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Abstract

In this paper, An application of non-additive measures for re-evaluating the degree of importance of some student failure reasons has been discussed. We apply non-additive fuzzy integral model (Sugeno, Shilkret and Choquet) integrals for some expected factors which effect student examination performance for different students' cases.


Article
On the Connection between the Dynamical System and the Ellis Compactification with Transitive Pointed System
العلاقة بين النظام الديناميكي مع تراص ايليس والنظام الديناميكي المتعدي الحاوي على نقطة اساسية

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Abstract

In this paper, some relations between the flows and the Enveloping Semi-group were studied. It allows to associate some properties on the topological compactification to any pointed flows. These relations enable us to study a number of the properties of the principles of flows corresponding with using algebric properties. Also in this paper proofs to some theorems of these relations are given


Article
Network Self-Fault Management Based on Multi-Intelligent Agents and Windows Management Instrumentation (WMI)
الادارة الذاتية للأخطاء في الشبكة بالاعتماد على نظام تعدد الوكلاء الذكي وادارة نوافذ الادوات القياسية

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Abstract

This paper proposed a new method for network self-fault management (NSFM) based on two technologies: intelligent agent to automate fault management tasks, and Windows Management Instrumentations (WMI) to identify the fault faster when resources are independent (different type of devices). The proposed network self-fault management reduced the load of network traffic by reducing the request and response between the server and client, which achieves less downtime for each node in state of fault occurring in the client. The performance of the proposed system is measured by three measures: efficiency, availability, and reliability. A high efficiency average is obtained depending on the faults occurred in the system which reaches to 92.19%, availability 92.375%, and reliability 100%. The proposed system managed five devices. The NSFM implemented using Java and C# languages.

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