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(56) 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:1

Article
Effect of vydate gill histology in female mosquito fish Gambusiaaffinis (Baird and Girard)
تأثير مبيد الفايديت في نسجية الغلاصم لإناث سمكة البعوضGambusiaaffinis(Baird & Girard)

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This study aimed to identify the histological changes of mosquito fish (Gambusiaaffinis) exposed to vydate pesticide.(48) female fishes were collected from local markets and also from thestream that surround Baghdad university campus at Al-jadyria, fishes divided into (4) groups and eachgroup consist of 12 fish: T1(exposed to 0.0000001 mg/L),T2 (exposed to 0.0000002 mg/L ) and T3 (exposed to 0.000001 mg /L) of vydate pesticide for (8) weeks. As well as a control group.Fishes were dissected for histological preparations after each (2,4,6,8) weeks of exposure time. Gills were fixed by Bouin’s fluid and stained with Hematoxylin and eosin.Histological study showed that the structure of gill in a control group consists of primary and secondary gill lamellae appeared parallel andoblique. The secondary gill lamellae lined with squamous epithelial and pillar cells, and each secondary lamellae have capillary derived from blood vessel in primary lamellae, chlorid cells and fewmucous cells found between secondary lamellae. The histological alterations in gills included hyperplasia of chloride cells,congestion of blood vessels, lamellar disarray, lifting of epithelial cells,Oedema, fusion of adjacent secondary lamella and Aneurysm.Results concluded that vydate had a vicious effect on gills and caused severe histological alterations such as hyperplasia of chloride cells and simple alterations such as lamellardisarray, and also these histological changes commensurate direct proportion with concentrations wereused in this study


Article
Effect of hot aqueous extract of seeds and leaves of fenugreek (Trigonellafoenum-graecum) on embryonic development in swiss albino mice
تأثير المستخلص المائي الحار لبذور و أوراق نبات الحلبة (Trigonellafoenum-graecumعلى التكوين الجنيني للفأر الابيض السويسري

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The present study has conducted to investigate the effect of hot aqueous extract of seeds and leaves of fenugreek (Trigonellafoenum-graecum) on embryonic development in Swiss albino mice morphologically , the results is showed throught dosage pregnant female orally after period 4, 8, 12days at the beginning of pregnancy by doses 100 , 200 , 300 mg/kg of body weight , the results showed normal period of pregnancy 21 days and abortion did not occur when the pregnant mice take the hot aqueous extract of leaves of fenugreek, but the pregnant mice that take the hot aqueous extract of seeds of fenugreek occurred abortion of embryos and showed some histopathological changes in ovaries and uterus such as congestion, hemorrhage, necrosis, odema, no morphological malformations observed in embryos


Article
Detection of wheat damping off and root rot disease pathogenic fungi and it bio control by pseudomonas fluorescens
التحري عن الفطريات المسببة لمرض سقوط البادرات وتعفن جذور نباتات الحنطة ومكافحتها احيائيا بالبكترياfluorescenspseudomonas

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This study was conducted to determine the fungal cause and bio control of damping off and root rot of wheat plants by using pseudomonas fluorescens under greenhouse and field conditions. Results showed isolation of eight species from the soil and roots to deferent region of Baghdad government.Rhizoctoniasolani (Rs) and Fusariumsolani (Fs) were the predominant damping off fungus with frequency 60 and 52% respectively. Led the using of bacteria formulations such as crud suspension , pure bacteria filtration and pure living cells in culture medium inhibit all type fungi with rates ranging from 84-96% , 80- 93% and 75-88% respectively. Rs and Fswere more pathogenesis under greenhouse conditions, with incidence of 80 and 68% and disease severity up to 41,20 and 30,20% respectively. The results of test bacterial formulation (dry, liquid and bacterial filtrate ) with seeds, soil and water irrigation showed high effectiveness for all treatments with superiority of the treatment of seeds in reducing the incidence which reached for the three formulation 21-34% compared with the infested control of Fs, Rs which reached 70 and 55%, respectively. Field experiments results showed superiority of seeds bacterization with dry formulation to reduce the disease incidence to 38% compared with the infested control (75%).These results reflected on the increasing of the shoot and rot dry weight and increasing the productivity (63%) compared with the infested control treatment


Article
Food Applications of Monosodium GlutamateSalt Produced from Bacillus subtilis EN3A1-P19U7
التطبيقات الغذائية لملح حامض الكلوتاميكالمنتج من بكتريا Bacillus subtilis EN3A1-P19U7

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The aim of this study was to get monosodium glutamate (MSG) flavor, which was obtained from glutamic acid, that produced from local isolated from Bacillus subtilis EN3A1-P19U7 which genetically improved, from Bacillus subtilis EN3A1-P19U7, and applied in sausage chicken meat, mayonnaise and vegetable and lentil soup, it has been added MSG product in this study at different concentrations with the use of chicken broth cubes (Maggi) as a commercial flavor for comparison, and it was conducted sensory evaluation of these products and found that the addition of MSG product this study at the level of 0.6% to the sausage chicken and 0.6% to the mayonnaise and 0.15% to the vegetable and lentil soup,the results of sensory evaluation show not significant difference (P˂0.05) with the same samples containing 2%of Maggi


Article
Synthesis of Some Mixed ligands Complexes of (2-hydroxy benzaldine)-4-amino Antipyrine and 1,10-phenanthroline and Studying their antibacterial activity
تحضير بعض معقدات الليكاندات المختلطة (2-هيدروكسي بنزيلدين) -4- امينوأنتبايرينو1،10- فينانثرولين ودراسة تاثيرها في البكتريا

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Complexes from the ligand (2-hydroxy benzaldine)-4-aminoantipyrine with some transition metal ions V(lѴ),Cr(lll),Fe(lll) and Co(ll) were prepared in the presence of the co-ligand 1,10-phenanthroline in alcoholic medium. These compounds were characterized by the available techniques: FT-IR ,UV-Visible ,magnetic susceptibility, Flame atomic absorption technique as well as elemental analysis and conductivity mesurments .From these spectral studies, a square pyramidal structure proposed for V(IV) complex and an octahedral geometry for Cr(III),Fe(III) and Co(II) complexes. The biological activity of the ligands and their complexes were evaluated by a gar plate diffusion technique against three human pathogenic bacterial strains: Pseudomonasaerogenuosa,E.schriachia coli. and Staphlococcus arureus. Some of the complexes were found to have a good antibacterial activity a gainst these pathogens


Article
Study the Effects of Olive Leaves Extracts in the activity of the enzyme GOT and their Biological Activities
دراسة تأثير مستخلصات اوراق الزيتون في فعالية انزيم GOT وفعالياتها البايولوجية

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The olive tree, has been used it is important plant for the time being some of their parts on a large scale in the treatment of gastrointestinal disorders and stimulate circulation . Moreover, it is used as antibacterial material and also to address some of the respiratory system, diabetes, food preservation osteoporosis. This study involved the collection of olive leaves from different areas in Baghdad / Iraq. These leaves have been harvested, wash it, then dried and crushed, where the study aimed to identify the active ingredients and chemical elements in the olive leaf as well as its effect on the action of GOT enzyme .The study showed that the aqueous extracts (cold and hot) of the olive leaves powder are acidic in nature pHvalues are of (5.74and 5.40) for the aqueous extracts hot and cold respectively. Study revealed the extract contain the a collection of Glycosides, tannins, phenolic compounds, resins, flavonoids,alkaloids, terpenes and compound Alaolurobin. The study also showed ability to activate the enzyme GOT in cold aqueous extract (8.36%). and the percentage (27.35%) of hot aqueous extract. That can be analyzed to the presence of higher concentrations of the active compounds in hot aqueous extract compared with cold aqueous extract especially tannins working to activate enzymes carrier in the cell membrane in the body. The study showed that the analysis of thin layer chromatography, liquid high-performance, ( TLC, HPLC) in extract compounds of phenols olive leaf using a mixture (chloroform, acetic acid) and a 2:5 was more impact in the Gram-positive Staphylococcus aureus, while less impact in a negative Gram Salmonellatyphimurium.As provedaccurate analysisof the chemical elements in powder of plant leaf olive tree and at different concentrations contain of chemical elements Major estimated by (g /kg) and trace estimated by (mg/kg). Since the existence of these elements led to increasing of enzymatic effectiveness through an increase process of activity the enzyme (GOT), which plays role of important in our bodies being gives indication of the nature of the work and effectiveness of the activity of some members of the body (liver, kidney, pancreas, etc.).


Article
Studying the effective of conductor polymer substrate on the electrical properties of semiconductors
دراسة تأثير قاعدة بوليمر موصل على الخواص الكهربائية لأشباه الموصلات

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This research includes depositionof thin film of semiconductor, CdSe by vaccum evaporation on conductor polymers substrate to the poly aniline where, the polymer deposition on the glass substrats by polymerization oxidation tests polymeric films and studied the structural and optical properties through it,s IR and UV-Vis , XRD addition to thin film CdSe,on of the glass substrate and on the substrate of polymer poly-aniline and when XRD tests was observed to improve the properties of synthetic tests as well as the semiconductor Hall effect proved to improve the electrical properties significantly


Article
Histomorphological study of uropygial gland of pekin duck (Anasplatyrhnchosdomesticus)
دراسة نسجية شكلية للغدة الزمكية في البط البكيني (Anasplatyrhnchosdomesticus)

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The study included 20 birds of Pekin duck(Anasplatyrhnchos domesticus)for study the histological of uropygial gland (10 males + 10 females), the weights were between (1411-1582 gm) for males and (1350-1980 gm)female. Routine Histological Techniques was done and stained by Hematoxylin and Eosin (H&E), Periodic Acidic Schiff (PAS), Masson's trichrome stains. Histological sections of the uropygial gland of Pekin ducks showed that the gland consist of the capsule, parenchyma, isthmus and uropygial papillae. Thecapsule consist of Dense irregular connective tissue.Themean thickness of capsule around the gland lobes were (56.321∓17.206µm) and around the uropygial papillae were (67.208∓14.996 µm).The capsule tissues continuous in between the secretory tubules to form trabecular.The parenchyma consists from secretory tubules arranged around the central cavity of gland, the cells that lining the secretory tubules consist of four types the basal cells, intermediate cells, secretory cells and degenerative cells.


Article
Preparation and study of the structural and optical properties of Bi2S3 thin films by Spray pyrolysis method
تحضير ودراسة الخصائص التركيبية والبصرية لأغشية كبريتيد البزموث Bi2S3 المحضرة بطريقة التحلل الكيميائي الحراري

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In this research Bi2S3 thin films have been prepared on glass substrates using chemical spray pyrolysis method at substrate temperature (300oC) and molarity (0.015) mol. Structural and optical properties of the thin films above have been studied; XRD analysis demonstrated that the Bi2S3 films are polycrystalline with (031) orientation and with Orthorhombic structure. The optical properties were studied using the spectral of the absorbance and transmission of films in wavelength ranging (300-1100) nm. The study showed that the films have high transmission within the range of the visible spectrum. Also absorption coefficient, extinction coefficient and the optical energy gap (Eg) was calculated, found that the film have direct energy gap equal to 2.8 eV.


Article
Study a concentration of Uranium for samples of soil from Falluja City using PM-355
قياس تراكيز اليورانيوم في نماذج ترب من مدينة الفلوجة باستخدام كاشف الأثر النوويPM-355

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In this study a concentration of uranium was measured for twenty two samples of soil distributed in many regions (algolan, almoalmeen, alaskary and nasal streets) from Falluja Cityin AL-Anbar Governorate in addition to other region (alandlos street) as a back ground on the Falluja City that there is no military operations happened on it. The uranium concentrations in soil samples measured by using fission tracks registration in (PM-355) track detector that caused by the bombardment of (U) with thermal neutrons from (241Am-Be) neutron source that has flux of (5×103n cm-2 s-1). The concentrations values were calculated by a comparison with standard samples. The results shows that the uranium concentrations algolan street varies from(1.976- 2.736ppm), almoalmeen street varies from (1.895-2.614ppm), and alaskary street varies from (1.657-2.476ppm), and nasal street (1.657-2.476ppm) the average uranium concentration in other region (alandolos) (0.736-1.588ppm). As a conclusion from the study uranium concentration in the four region above that have military operations is relatively higher than back ground


Article
Screening of Epiphytic Algae on the Aquatic Plant Phragmites australis inhabiting Tigris River in Al-Jadria Site, Baghdad, Iraq
تشخيص نوعية للطحالب الملتصقة على نبات القصب Phragmites australis المستوطن في نهر دجلة في منطقة الجادرية بغداد – العراق

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The present work included qualitative study of epiphytic algae on dead and living stems, leaves of the aquatic plant Phragmitesaustralis Trin ex Stand, in Tigris River in AL- Jadria Site in Baghdad during Autumn 2014, Winter 2015, Spring 2015, and Summer 2015. The physical and chemical parameters of River’s water were studied (water temperature, pH, electric conductivity, Salinity, TSS, TDS, turbidity, light intensity, dissolve oxygen, BOD5, alkalinity, total hardness, calcium, magnesium and plant nutrient). A total of 142 isolates of epiphytic algae were identified. Diatoms were dominant by 117 isolates followed by Cyanobacteria (13isolates), Chlorophyta (11 isolates) and Rhodophyta (1 isolate), Variations in the isolates number were recorded on different parts of macrophyte host as well as, indifferent seasons. Eight new algal isolates (Achnanthesexigue var. heterovalvata Krasske, Navicula exilissima Grunow, Navicula falaisiensis var lanceola Grunow, Navicula microcephalo Grunow, Pleurosigma obscurum W. Smith, Stauroneis amphioxys var. amphioxys Gregory, Stenopterobia intermedia Lewis and Audouinella hermannii Roth).were identified as new records.


Article
Isolation Cellulolytic Fungi from Plants and Animals Wastesin Iraq
عزل الفطريات المحلله للسليلوز من المخلفات النباتية والحيوانية في العراق

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134 samples of plants and animals wastes were taken from three different regions outside Baghdad and three different regions in Baghdad. 24 cellulolytic isolates fungi AO, C1, TH1, AN1, R1, TV, PG, AF, B1, L1, AP, TH, AP1, AN3, AO2, A, A1, C, F, AO1, C2, F1, CL and AP2 independent were chosen out of 48 selected fungi. The best optimal conditions for growth were 30ºC and pH 7. The isolates were identified and screened according to the colony diameter, biomass and density of spores in addition of capability to produce the hydrolytic enzymes for cellulose.


Article
The Effect of Organic Matter Application on Phosphorus Status in the Calcareous Soil
تأثير اضافة المادة العضوية في حالة الفسفور في التربة الكلسية

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A field experiment is conducted to study the effect of different levels of peat (0, 25, 50, 75, and 100 Mg ha-1 to uncropped and cropped soil to wheat. Soil samples are taken in different period of time (0, 3, 30, 60, 90, 120, and 180 days after cultivation to determine (NaHCO3-Exteractable P at 3 different depths (0-10, 10-20, and 20-30 cm). Field Experiment is conducted in a randomized complete block design (RCBD) with four replicates. Wheat, Al-Rasheed variety, is cultivated as a testing crop. The entire field is equally dived in two divisions. One of the two divisions is cultivated to wheat and the second is left uncropped. The effect of five levels of peat namely 0, 25, 50, 75, 100 Mg ha-1 is investigated. Soils are fully analyzed to determine its physical and chemical characteristics. The soil samples are collected after 3, 30, 60, 90, 120, and 180 days for determining essential parameters and indicators that reflect the effect of the level of peat applications. Sodium bicarbonate - extractable P in uncropped and cropped soils at all depths, markedly decreases with time after peat application which has been attributed to plant uptake and rapid reaction of P with soil constituents. Sodium bicarbonate - extractable P with time in soil receiving 50 Mg ha-1 in both uncropped and cropped soil linearly decreases with the time of cultivation.


Article
Detecting the antibacterial activity of green synthesized silver (Ag) nanoparticles functionalized with ampicillin (Amp)
التحري عن الفعالية المضادة للبكتريا لدقائق الفضة النانوية المحضرة بالطريقة الخضراء والمحملة بمضاد الامبسلين

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In the current study, synthesis and characterization of silver nanoparticles (AgNPs) before and after functionalization with ampicillin antibiotic and their application as anti-pathogenic agents towards bacteria were investigated. AgNPs were synthesized by a green method from AgNO3 solution with glucose subjected to microwave radiation. Characterization of the nanoparticles was conducted using UV-Vis spectroscopy, scanning electron microscopy (SEM), zeta potential determination and Fourier transform infrared (FTIR) spectroscopy. From SEM analysis, the typical silver nanoparticle particle size was found to be 30 nm and Zeta potential measurements gave information about particle stability. Analysis of FTIR patterns and UV-VIS spectroscopy confirmed the production of nanosilver particles. The activity of produced silver NP was tested against three pathogens (Escherichia coli, Staphylococcus aureus, and Acinetobacter baumannii) in both liquid and solid growth medium. AgNPs presented potential antibacterial activity, against tested bacteria. Ag and Ag-AMP nanoparticles were detected to have penitent antimicrobial. The optical density (OD) of the culture solution and measuring zones of inhibition were used to monitor the growth of bacteria in liquid and solid growth medium respectively


Article
The Relation between Bacterial and Heavy Metal Water Pollution and Blood Micronuclei as Biomarkers in the Tigris River Fish
العلاقة بين التلوث المائي بالعناصر الثقيلة والبكتريا والانوية الصغيرة في الدم كمؤشرات حيوية في أسماك نهر دجلة

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The objective of this study is to evaluate the bacterial count and heavy metal concentration of river water on fish micronuclei. Fish and water samples are carried out in 1 May to 1 June 2013 from Tigris River. A total of fifty three fish sample are studied. The bacteriological quality of water showed that the total viable count is ranged from 150×103 to 352×103 cfu/ml and fecal coliform counts was 1250 cell/100ml during the study period. All the metals (Cu, Hg, Pb, and Zn) are within the normal limit, but Cd was slightly elevated in river water samples. The appearance of micronuclei in red blood cells of all fish species is detect , by recording a larger number of it, in ( Abu Alsomere , Hishne , Bannini Kaber al fam & Karkoor ahmar) species compared with (Abu AL hakam , Nabbash , Kattan , Himri & Tela shami ) species. There is a difference in the percentages of the leukocytes types in different fish species, the highest percentage (12.3) of lymphocyte is recorded in Barbus xanthopterus and the lowest (1.5) is in Garra rufa.


Article
Synthesis and Spectral Analysis of Some Metal Ions Complexes with Mixed Ligands of Schiff Base and 1, 10-Phenanthroline
تحضير وتحليل طيفي لبعض معقدات ايونات الفلزات مع مزيج من الليكندات لـ 10,1- فينانثرولين وقاعدة شيف

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The free Schiff base ligand (HL1) is prepared by being mixed with the co-ligand 1, 10-phenanthroline (L2). The product then is reacted with metal ions: (Cr+3, Fe+3, Co+2, Ni+2, Cu+2 and Cd+2) to get new metal ion complexes. The ligand is prepared and its metal ion complexes are characterized by physic-chemical spectroscopic techniques such as: FT-IR, UV-Vis, spectra, mass spectrometer, molar conductivity, magnetic moment, metal content, chloride content and microanalysis (C.H.N) techniques. The results show the formation of the free Schiff base ligand (HL1). The fragments of the prepared free Schiff base ligand are identified by the mass spectrometer technique. All the analysis of ligand and its metal complexes are in good agreement with the theoretical values indicating the purity of Schiff base ligand and the metal complexes. From the above data, the molecular structures for all the metal complexes are proposed to be octahedral.


Article
Using Phragmitesaustralis(Iraqi plant) to remove the Lead (II) Ions form Aqueous solution.
ازالة ايونات الرصاص الثنائية من المحاليل المائية باستعمال نبات القصب العراقي

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


Article
Positive and Negative Aspects of Copaxone ( Glatiramer acetate) Action on TC, TG HbA1c and Iron Levels in The Sera of Iraqi Women with Multiple Sclerosis in Baghdad
التأثيرات الإيجابية و السلبية لعمل الكوباكزون (كلاتيرامير أسيتيت) على مستويات الكوليسترول الكلي و الدهون الثلاثية و الهيموغلوبين السكري c1A و الحديد في مصل دم نساء عراقيات مصابات بتصلب الأعصاب في بغداد

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The aim of the present study is to highlight the role of total cholesterol (TC), triacylglycerol (TG), Glycated hemoglobin A1c and iron in Iraqi women with multiple sclerosis and also to examine the biochemical action of copaxone (which is the most widely used in the 21st century to treat multiple sclerosis) on these biochemical parameters. This is the first study in Iraq which deals copaxone action on TC , TG , HbA1c and iron. Ninety women in their fourth decade suffering from multiple sclerosis were enrolled in this study. They were divided into: the first (group B) composed of (30) women without any treatment related to multiple sclerosis or any treatment linked with chronic or inflammatory diseases. The second (group A1) included (30) women under treatment with copaxone for 1 year, whereas the third group (group A2) involved (30) women under treatment with copaxone for 2 years. Patients groups were compared with a healthy control group (group C) composed of (30) healthy women, TC, TG, HbA1c and iron levels were determined in the sera of patients and control groups. Results of the present study has revealed that TC was high significantly increasing in the sera of group B (250.68±9.76) mg/dl compared with group C (175.36±8.81) mg/dl, while it was high significantly decreasing in the sera of groups A1 (211.88±5.90) mg/dl and A2 (212.12±5.60) mg/dL compared with group B (250.68±9.76) mg/dl. Beside, a non-significant difference was suggested between groups A1 (211.88±5.90) mg/dl and A2 (212.12±5.60) mg/dl. The present study also reported that TG was high significantly increasing in group B (224.84±10.76) mg / dl compared with group C (131.36±7.53) mg/dL whereas a significant decrease was shown in group A1(142.48±4.63) mg/dl and group A2 (195±4.20) mg/dl compared with group B (224.84±10.76) mg / dl. Surprisingly, a highly significant increase was reported in group A2 (195±4.20) mg/dl compared with group A1(142.48±4.63) mg/dl. The present study also suggested that HbA1c level was high significantly increasing in the sera of group B (6.53±0.57) mg/dl compared with group C (4.99±0.07) mg/dl. Oppositely, it was high significantly decreasing in the sera of groups A1 (4.72±0.42) mg/dl and A2 (4.53±0.35) mg/dl compared with group B (6.53±0.57) mg/dl. Futhermore, a non-significant difference was noted between groups A1 (4.72±0.42) mg/dl and A2 (4.53±0.35) mg/dl. This study also reported that iron level was high significantly decreasing in the sera of group B (37.31±4.24) µg / dl compared with group C (98.23±9.21) µg/ dl, whereas it was significantly increasing in the sera of groups A1 (44.05±6.32) µg/dl and A2 (45.31±6.82) µg/dl compared with group B (37.31±4.24) µg/dl . A non significant difference was shown between groups A1 (44.05±6.32) µg / dl and A2 (45.31±6.82) µg / dl.


Article
Adsorption of Congo Red Dye from Aqueous Solution onto Natural and Modified Bauxite Clays
إمتزاز صبغة الكونغو الحمراء من محاليلها المائية بواسطة أطيان البوكسايت والبوكسايت المعالج

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The adsorption behavior of congo red dye from its aqueous solutions was investigated onto natural and modified bauxite clays. Both bauxite and modified bauxite are primarily characterized by using, FTIR, SEM, AFM, and XRD. Several variables are studied as a function of adsorption including contact time, adsorbent weight, pH, ionic strength, particle size and temperature under batch adsorption technique. The absorbance of the solution before and after adsorption was measured spectrophotometrically. The equilibrium data fit with Langmuir model of adsorption and the linear regression coefficient R2 is found to be 0.9832 and 0.9630 for natural and modified bauxite respectively at 37.5°C which elucidate the best fitting isotherm model. The general shape of the adsorption isotherm of congo red on natural and modified bauxite is consistent with (H-type) on the Giles classification. Different thermodynamic parameters such as Gibb's free energy, enthalpy and entropy of the on-going adsorption process have also been evaluated. The thermodynamic analyses of the congo red adsorption on natural and modified bauxite indicate that the systems are endothermic in nature.


Article
Spectrophotometric Determination of Bisacodyl in Pure and Pharmaceutical Preparation via Oxidative Coupling Organic Reaction
التقدير الطيفي لعقار البسكودايل في المادة النقيةو المستحضرات الصيدلانية بواسطة تفاعلات الاقتران التاكسدي

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A simple, accurate and sensitive spectrophotometric way is used to determine Bisacodyl in pure and pharmaceutical preparations. The proposed method depends on using 2,4-Dinitrophenylhydrazine as chromogenic reagent . The method was based on the oxidative coupling reaction of Bisacodyl with 2,4-Dinitrophenylhydrazine with Sodium periodate in the presence of sodium hydroxide as alkaline media to form red water soluble dye product , that has a maximum absorption at λmax 522nm . Beer ,s law is obeyed in the concentration of (2.00–20.00) μg.ml -1 .The molar absorptivity is (6505) L.mol-1.cm-1,a sandall sensitivity of(0.0555) μg.cm-2), correlation coefficient of (0.9970) , Limitof detection (LOD) (0.0312 μg.ml-1), limit of Quantitation (LOQ) (0. 3125 μg.ml-1) and the relative standard deviation of RSD% (1.6). The method gave a successful determination for Bisacodyl in pharmaceutical preparations and the value of recovery % was better than (100.16%) .


Article
An efficient of Sansevieria trifasciata plant as biosorbent for the treatment of metal contaminated industrial effluents
كفاءة نبات Sansevieria trifasciata في الامتصاص الحيوي لمعالجة التلوث بالمخلفات الصناعية المعدنية السائلة

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Abstract

Sansevieria trifasciata was studied as a potential biosorbent for chromium, copper and nickel removal in batch process from electroplating and tannery effluents. Different parameters influencing the biosorption process such as pH, contact time, and amount of biosorbent were optimized while using the 80 mm sized particles of the biosorbent. As high as 91.3 % Ni and 92.7 % Cu were removed at pH of 6 and 4.5 respectively, while optimum Cr removal of 91.34 % from electroplating and 94.6 % from tannery effluents was found at pH 6.0 and 4.0 respectively. Pseudo second order model was found to best fit the kinetic data for all the metals as evidenced by their greater R2 values. FTIR characterization of biosorbent revealed the presence of carboxyl and hydroxyl groups on its surface that were responsible for metal uptake. The data for Cr removal from both the effluents was best explained by Langmuir model, while data for Ni and Cu removal was best fitted to Freundlich isotherm. Moreover, 84% biosorbent was recovered on desorption.


Article
Synthesis and Modification of Some New Transition Metal Complexes of Poly (vinyl chloride)
تحضير وتعديل بعض معقدات العناصر الانتقالية لبولي فنيل كلورايد الجديدة

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Abstract

Theligand4-[5-(2-hydoxy-phenyl)- [1,3,4- thiadiazole-2- ylimino methyl]-1,5-dimethyl -2-phenyl-1,2-dihydro-pyrazol-3-one [HL1] is prepared and characterized. It is reacted with poly(vinyl chloride) (PVC) in THF to form the PVC-L compounds ,PVC-L interacted with ions of transition metals to form PVC-L-MII complexes .All prepared compounds are characterized by FTIR spectroscopy, u.v-visible spectroscopy, C.H.N.S. analysis and some of them by 1HNMR .


Article
Stimulated Emission Cross Section in Xenon-Neon Lasers
مساحة‌ مقطع الانبعاث المحفز فی اللیزر نیون – زینون

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Abstract

Gas Lasers are important tools that are used in variety purposes, for their low and (cw) output power. The aim of this study was to prepare a way to calculate an optimum stimulated emission cross-section in a gas laser containing a mixture of Xenon and Neon by (30%-70%). The process was a theoretical study of each gas in separate in terms of their physical properties as an active medium. The results of these calculations are logic and more convenient than other mixtures used before.


Article
Notes on Traces of a Symmetric Generalized (σ, τ)-Biderivations and Commutativity in Prime Rings
إشارات حول دوال الأثر لثنائية المشتقات(σ, τ)- المُعَمَّمة المتناظرة والتبادلية في الحلقات الأولية

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Abstract

Let R be a 2-torision free prime ring and σ, τ∈ Aut(R). Furthermore, G: R×R→R is a symmetric generalized (σ, τ)-Biderivation associated with a nonzero (σ, τ)-Biderivation D. In this paper some certain identities are presented satisfying by the traces of G and D on an ideal of R which forces R to be commutative.


Article
Cache Coherence Protocol Design and Simulation Using IES (Invalid Exclusive read/write Shared) State
تصميم ومحاكاة بروتوكول الترابط في الذاكرةالمخبئية باستخدام حالات (غير صالح، حصري في القراءة والكتابة، مشترك)

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Abstract

To improve the efficiency of a processor in recent multiprocessor systems to deal with data, cache memories are used to access data instead of main memory which reduces the latency of delay time. In such systems, when installing different caches in different processors in shared memory architecture, the difficulties appear when there is a need to maintain consistency between the cache memories of different processors. So, cache coherency protocol is very important in such kinds of system. MSI, MESI, MOSI, MOESI, etc. are the famous protocols to solve cache coherency problem. We have proposed in this research integrating two states of MESI's cache coherence protocol which are Exclusive and Modified, which responds to a request from reading and writing at the same time and that are exclusive to these requests. Also back to the main memory from one of the other processor that has a modified state is removed in using a proposed protocol when it is invalidated as a result of writing to that location that has the same address because in all cases it depends on the latest value written and if back to memory is used to protect data from loss; preprocessing steps to IES protocol is used to maintain and saving data in main memory when it evict from the cache. All of this leads to increased processor efficiency by reducing access to main memory.

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