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: 2012 volume:9 issue:4

Article
Morphological study of pollen-grains for the wild species of the genus Erysimum L. (Crucifereae) in Iraq
دراسة مظهرية لحبوب اللقاح للأنواع البرية من الجنس Erysimum L. (Cruciferae ) في العراق

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Abstract

Pollen grains morphology have been studied for the wild species of the genus Erysimum L. which belong to Crucifereae family in Iraq. These species are E. filifolium Boiss. et Hausskn., E. oleifolium J. Gay, E. repandum L., E. eginense Hausskn. ex Bornm., E. aucheranum J. Gay, E. cheiranthoides L., E. alpestre Ky. ex Boiss., E. kurdicum Boiss. et Hausskn., E. tenellum DC., E. strophades Boiss., E. gladiiferum Boiss. et Hausskn., E. nasturtioides Boiss. et Hausskn. The study was performe by using light microscope . The study reveal that there was only one type of pollen grain named Tricoplate in all studied species . The study also demonstrated that there were differences among pollen grains morphology . The species E. kurdicum , E. alpestre , and E. strophades have shown Oblate form , while the species E. oleifolium , E. repandum , E. filifolium , E. aucheranum , and E. tenellum have Oblate-spheroidal form . On the other hand the species E. eginense , E. gladiiferum , E. cheiranthoides , and E. nasturtioides have Sub-oblate pollen . It was also noticed that the outer layer of pollen grains has more thickened wall than the inner layer . The data also shown that there were differences in pollen grains sizes . The species E. oleifolium , E. strophades , E. filifolium , E. gladiiferum , E. E. kurdicum , E. aucheranum , E. tenellum , E. repandum , and E. nasturtioides have very small pollen grains , while they were small to middle in the other species .The data getting from this study showed important taxonomical characters to classifying the studied species


Article
Effect of Phoenix dactylifera pollen grains suspension in fertility of male rats.
تاثير معلق حبوب لقاح النخيلPhoenix dactylifera في خصوبة ذكور الجرذان البيض

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Abstract

This study was conducted to determine the role of Phoenix dactylifera pollen grains suspension in improving reproductive efficiency of white male rats. In thisexperiment 40 adult male rats were divided randomly into five equal groups and by following oral administration:the first group was given Phoenix d. pollen grains suspension with concentration 18 mg/kg body weight daily, the second group was given 54 mg/kg, the third group was given 108 mg/kg and fourth group 216 mg/kg body weight, and the last group which represented a control group administrated distilled water only, the administration continued for 40 consecutive days. The effect of Phoenix d. pollen grains in reproductive efficiency was evaluated depending on some parameters such as: weights of (testes, epididymes, seminal vesicle and prostate gland), Some testes parameters of epididymis sperms (sperms concentration, percentage of both sperms motility and viability and percentage of normal sperms).and measuring of some hormonal levels which affect on spermatogenesis like [Luteinizing hormone(LH), Follicle stimulating hormone(FSH) and Testosterone hormone(T)]. The results showed a significant increase (P<0.05) in genital organs weights especially in the third group compared with a control group .Also there was a significant increase (P<0.05) in sperms concentration and motility in the second and third groups as compared with the control group, there was a significant increase in the percentage of sperms viability in the third group compared with a control group ,while there was significant decrease (P<0.05) in this groups in LH hormone level compared with control group incrementally down from the first group until the third group, while there was a significant increase (P<0.05) in FSH in second and third groups and significant increase in testosterone levels in all treated groups compared with a control group.It's concluded that oral administration of Phoenix d. pollen grains suspension led to positive improvement in some sides of reproductive efficiency of white male rats .


Article
The Inhibitory Effect Zingiber Offlcinale Extracts on Microorganisms whichAssociated with Biscuit.
التأثير التثبيطي لمستخلصات الزنجبيل Zingiber officinale في الأحياء المجهرية المرافقة للبسكت

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Abstract

The research aimed at studying the inhibitive effect of the hot watery dry and ethanolic ginger(85%) and fragrant oil which are added in concentrates of o.o25, o.o5o and 0.1g / 100g respectively in the growth of bacteria and molds. The results of the initial chemical diagnosis showed containment of ginger roots extract on. Alkaloids, Glycosides, Flavonoids and Suponins. The highest inhibitive effect of the bacteria reached the concentrate . 0.1% of the oil extract then the concentrate 0.050% of the ethanolic hot extract follows it. While 0.1% was the least inhibitive concentrate for the hot watery extract. But the inhibitive effect of the hot oily and alcoholic extracts in the numbers of molds colonies was 0.025%, when the concentrate 0.1% of the hot watery extract appeared the least inhibitive concentrate for molds. The ensual evaluation of the manufactured biscuit which is stored for fifteen weeks results showed the excel of the treatment A3 (concentrate 0.1%) of the hot ethanolic extract in the aualities of appearance , flavor and flakiness where it reached 5.800 indicates the efficievcy of the effective compounds in ginger in protecting from rancidity and oxidation during the storing period in comparison to the control treatment (without adding ginger) where it got 4.600, 4.600 and 5 respectively . when the treatments A1(0.0 25%), A2(0.050%) and O1(0.025%) got the least values where it reached 2.800, 3.800, 3.600 in the qualities of color, texture and general acceptance.


Article
Effect of magnetic treatment of irrigation water and seed on some vegetative characteristics and production of black seed "Nigella sativa
تأثير المعالجة المغناطيسية لماء الري والبذور في بعض صفات النمو الخضري والانتاجية لنبات الحبة السوداء

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Abstract

Seeds of Nigella sativa were sown in containers containing 15kg Loamy soil. The seeds were divided before sewing into two groups. The first group was soaked with ordinary tap water end the second group was treated with magnetized water for 24hrs. The irrigation process was completed until 75% of capacity field with two types of water (tap water of magnetized water with three replications).The magnetized water was obtained from special electric device designed for this purposeRecorded measurements (plants height, the number of branches/ plant, dry weight ofplant, number of flowers, 1000 seed weight) during the harvest period.Results indicated that the seed group which was treated with magnetized water was more significant than the one which was treated with the normal water in all the studied characteristics.


Article
Bacterial contamination of AL-Habania and AL-Tharthar reservoirs
التلوث البكتيري لخزاني الحبانية والثرثار

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Abstract

Bacterial contamination of AL-Habania and AL-Tharthar reservoirs were studied during the period from February 2001 to January 2002, samples were collected from four stations in AL-Habania reservoir (AL-Warrar, AL-Theban regulator, middle of the reservoir and the fourth was towards AL-Razzaza reservoir) and from two stations at AL-Tharthar reservoir (Ein AL-Hilwa and the middle of the reservoir). Coliform bacteria, faecal Coliforms, Streptococci, faecal Streptococci and total count of bacteria were used as parameters of bacterial contamination in waters of both reservoirs through calculating the most probable number. Highest count of Coliform bacteria (15000 cell/100ml) was recorded at Ein AL-Hilwa and lowest count at AL-Theban regulator and middle of AL-Tharthar reservoirs and reached (400 cell/100ml), faecal Coliform bacteria ranged between less than (300 cell/100ml) to (2300 cell/100ml). Total Streptococci ranged between less than (300 cell/100ml) to (24000 cell/100ml), faecal Streptococci ranged between less than (300 cell/100ml) to (900 cell/100ml). Total bacterial count showed variable values due to ecological changes at the stations of study which reached (3980 cell/ml) in the forth station towards AL-Razzaza reservoir and was declined to (580 cell/ml) at the middle of AL-Tharthar reservoir. Results were discussed in the research text.


Article
Preparation, Study and Theortical Treatment of Co(II) Ni(II) Cu(II) and Zn(II) Schiff Base Coplexes with Sodium [N-(hydroxyl naphtholidine) Glycine imino].
تحضير ودراسة ومعالجة نظرية لمعقدات قواعد شف للــ [(Co(II), Ni(II), Cu(II), Zn(II)] مع صوديوم ] N- (2- هيدروكسي نفثولدين) كلايسين ايمينو[

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Anew Schiff base (NaHL) has been prepared from the reaction between the salt of amino acid glycine with 2-hydroxy naphthaldehyde. By tridentate Schiff base of (ONO), donors were characterized by using U.V and spectrophotometer techniques. Complexes of Co(II) Ni(II) Cu(II) and Zn(II) ion with the ligand have been prepared, these complexes were identified by infrared, electronic spectral data, elemental analysis, magnetic moments, and molar conductivity measurements. It is concluded from the elemental analysis that all the complexes have (1:2) [metal:ligand] molar ratios, octahedral, with the exception to Zn(II) complex which have (1:1)[metal:ligand] molar ratio.


Article
Study of Spectroscopy and Thermodynamic Properties for Phoshours dioxide PO2 Molecular and Influence Study of Bond ( P-O ) on Spectroscopy Properties
دراسة الخواص الطيفية والحرارية لجزيئة ثاني اوكسيد الفسفور PO2 ودراسة تأثير الاصرة(P- O) في هذه الخواص الطيفية

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Abstract

In This research a Spectroscopic complement and Thermodynamic properties for molecule PO2 were studied . That included a calculation of potential energy . From the curve of total energy for molecule at equilibrium distance , for bond (P-O), the degenerated of bond energy was (4.332eV) instate of the vibration modes of ( PO2 ) molecule and frequency that was found active in IR spectra because variable inpolarization and dipole moment for molecule. Also we calculate some thermodynamic parameters of ( PO2 ) such as heat of formation , enthalpy , heat Of capacity , entropy and gibb's free energy Were ( -54.16 kcal/mol , 2366.45 kcal/mol , 10.06 kcal /k/mol , 59.52 kcal /k /mol, -15370.51 kcal / mol ) respectively under condition of room temperature and atmosphere pressure ( 298 k , 1 atm.). We calculate there parameters at various temperature from ( 100 – 3000 ) K . It was found that the obtainded results were in a good agreement with previous experimental facts.


Article
Bacterial Colonization of Burn Wounds
الاستعمار البكتيري لجروح الحروق

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Abstract

The objective behind this work was to find out the bacteriological profile of post burn infections in wound. The study was carried out from December 2010 to February 2011 at the Burns Unit of Al –Kindy Hospital and Al-Yarmook Hospital in Baghdad. Sixty burn patients have been investigated for bacterial profile of burn wound infections. Specimens were collected in the form of wound swabs. The organisms were isolated and identified by standard microbiological methods. Antimicrobial susceptibility test has been done by ATB-PSE5 kit(BioMereiux). Pseudomonas aeruginosa 35(58.3 %) was found to be the most common isolate followed by Klebsiella pneumonae 10(16.6%), Staphylococcus aureus 7(10%). ,E.coli 3(5%), Proteus merabilis 1(1.6 %), others 2(3.3 %).and sterile cultures 2(3.3 %). Antibiotic susceptibility pattren for Pseudomonas aeruginosa isolates have shown high susptibility for Amikacin 30(85.0%), Pipracillin-Tazobactam 27(77.2%) Piperacillin 25(71.4%), Ciprofloxaqcin 25(71.4%) and Colistin 24(68.5%) and low susceptibility for Tobramycin 20(57.2%) Gentamycin 18(51.0%). Psudomonas was found to be resistant to most of the therapeutic agent.


Article
Conventional and Molecular Typing of Salmonella enterica serotype Typhi Locally Isolated In Baghdad
دراسةالتنميط الجيني و التنميط المظهري لبكتريــــــا Salmonella enterica serotype Typhi في بغـــداد

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Abstract

Phenotypic And genotypic characteristics of Salmonella enterica serotype Typhi have been determined for 29 isolates, from Baghdad in 2007. Conventional typing methods were performed by biochemical tests, and antimicrobial susceptibility test. Molecular typing performed by analysis plasmid DNA beside using the Random Amplified Polymorphic DNA (RAPD-PCR). For the latter, two universal primers that have selected for the high discriminatory power were used for RAPD analysis. All isolates were belong one biotype according to the differention by their ability to decarboxylat lysine, 29(100%) were lysine (+). All the isolates were susceptible to the Antibiotics used. However, all the strains free of plasmids. RAPD was capable of grouping the strains in 6 genotypic patterns using primer 784, in 4 genotypic patterns using primer 787. Conventional phenotypic typing methods, as well as the DNA plasmid analysis, presented non significant discriminatory power; however, RAPD-PCR analysis showed discriminatory power, reproducibility, easy interpretation and can be considered as a promising alternative typing method for S. Typhi.


Article
Effect of Aqueous and Ethanolic Extracts of Tribulus terrestris, Phoenix dactylifera and Nasturtium officinale Mixture on Some Reproductive Parameters in Male Mice
تأثير المستخلص المائي ومستخلص الايثانول لمزيج نباتات الكطب وطلع النخيل وبذور الرشاد على بعض المعايير التكاثرية في ذكور الفئران

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Abstract

The present investigation was conducted to evaluate the effect of the crude extracts mixture of three plants (Tribulus terrestris, Phoenix dactylifera and Nasturtium officinale) on semen quality,sex hormones and reproductive performance of mature male mice. A group of 25 male mice given 150mg/kg/day of the powder of the plants mixture with the food for four weeks and another three groups of 25 animals each given intraperitoneal injection from each of the aqueous and ethanolic extracts with a doses 75, 150, and 300mg/kg/day for two weeks. A remarkable increase in sperm concentration and motility with a decreased abnormal morphology was obtained in the experimental groups. A significant increase in hormones level were recognized in most groups. The results of mating untreated females with treated males of the four experimental groups revealed a decreased gestation period and an increased litter size. The results showed a dose dependent pattern of activity and the effect of the extracts were enhanced with increasing the dose level. The ethanolic extract being the more effective extract in all parameters.


Article
The Effect of Aqueous Extract of Citrullius colocynthis Seeds on Cellular Immunity
تأثير المستخلص المائي لبذور نبات الحنظل Citrullius colocynthis على المناعة الخلوية

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The aqueous extract of Citrullius colocynthis dried seeds (160 μg/ml) was in vitro evaluated for its effect on phagocytic index (PI) and lymphocyte transformation index (LTI) of blood cells obtained from 30 apparently healthy blood donors (15 males and 15 females). The PI was further in vivo evaluated in cells of peritone, spleen and liver of mice treated with the extract at a dose of 0.64 mg/kg. The results revealed that in in vitro study, phagocytic cells treated with the extract showed a significant increased percentage as compared with untreated cells (60.0 vs. 44.1%). Phagocytes obtained from peritone (44.1 vs. 30.0%) and spleen (45.6 vs. 39.6 %) of treated and untreated mice behaved in a similar manner, while liver phagocytes showed no significant difference between PI of immunological function of the investigated cells, and may use as therapeutic agent. treated and untreated mice. For LTI, cultures I and II shared an approximated mean (70.0 and 68.0%, respectively), but both indices were significantly higher than the recorded LTI in culture III (54.0%). These findings suggest that the plant extract is effective in enhancing the


Article
The Relation of IGF-1 and Insulin Resistance in a Sample of Iraqi Obese Type 2 Diabetic Patients with Macrovascular Disease
علاقة هرمون النمو الشبيه بالأنسولين-1 ومقاومة الأنسولين في عينه لمرضى السكري النوع الثاني العراقيين المصابين بالسمنة ومضاعفات ألاوعيه الدموية

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Type 2 diabetes mellitus(T2DM) is a metabolic disease that is associated with an increased risk for atherosclerosis by 2-4 folds than in non- diabetics. In general population, low IGF-1 has been associated with higher prevalence of cardiovascular disease and mortality .This study aims to find out the relationship between IGF-1 level and other biochemical markers such as Homeostasis Model Assessment insulin resistance(HOMAIR) and Body Mass Index(BMI) in type 2 diabetic patients . This study includes (82) patients (40 females and 42 males) with age range (40-75) years,(34) non obese diabetic patients and (48) obese diabetic patients. The non obese individuals considered as a controls group, all controls and patients groups with type 2 DM, ischemic heart disease and hypertension, and free from other disease by history and clinical exam .The results showed that serum IGF-1 levels were lower in obese diabetic patients than non obese.HOMAIR has been found to be significantly higher in obese than non obese diabetic patients ,there is negative correlation between IGF-1 and HOMAIR. Body mass index (BMI) was in positive correlation with HOMAIR and innegativecorrelationwithIGF-1. Conclusion of this study was the serum level of IGF-1 is significantly lower in obese than non obese type 2 DM , but HOMA IR is significantly higher in obese diabetic subjects .


Article
The Dissolution Study For Sodium Selenite Tablets Using Atomic Absorption Spectrophotometer
دراسة ذوبانية لملح حبوب سلينات الصوديوم بأستخدام تقنية المطاييف الذرية

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The development of a meaningful dissolution procedure for drug products with limited water solubility has been a challenge to both the pharmaceutical industry and the agencies that regulate them. Natural surfactants aid in the dissolution and subsequent absorption of drugs with limited aqueous solubility. In vitro, various techniques have been used to achieve adequate dissolution of the sparingly water – soluble or water insoluble drug products such as the use of mechanical methods (i.e., increased agitation and the disintegration method) or hydro alcoholic medium or large volumes of medium. The necessity of assuring the quality of drugs , especially those with low aqueous solubility and in vivo absorption , has led to the development and evaluation of new techniques that can reduce the time and cost of analysis. This study has been examines the efficiency and accuracy of an automated dissolution system, fitted with a simple, integrated, for analysis of generic drugs. Sodium Selenite 200 μg tablets was chosen as model drugs for this study and comparison was made with a conventional analysis based on flameless atomic absorption spectrophotometer (AAS). The analytical system under study gave reproducible and accurate results. Low instrumentation cost was demonstrated which is provide satisfactory elemental drugs analysis to a standard at least as good as that achieved using AAS.


Article
Synthesis, spectroscopic study of Pt (IV), Au (III), Rh(III),Co(II) and V (IV) complexes with sodium[5-(p-nitro phenyl) -/4- phenyl-1,2,4-triazole-3-dithiocarbamato hydrazide] and cytotoxicity assay on rhabdomyosarcoma cell line of heavy metals
تحضير ودراسة طيفية لمعقدات Co (II), Rh(III), Au(III), Pt (IV) , V (IV) مع صوديوم ]5-( بارا نايترو فنيل)- /4- فنيل-4,2,1 - ترايزول -3- ثنائي ثايوكاربميت هيدرازيد[و تجربة التأثير السمي الخلوي على الخط الخلوي السرطاني لسرطان العضلة لمعقدات الأيونات الثقيلة

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All the prepared metal complexes of Pt (IV), Au(III), Rh (III), Co (II) and V(IV) with new ligand sodium [5-(p-nitro phenyl)-/4-phenyl-1,2,4-triazole-3-dithiocarbamato hydrazide] (TRZ.DTC) have been synthesized and characterized in solid state by using flame atomic absorption, elemental analysis C.H.N.S, FT-IR ,UV-Vis Spectroscopy, conductivity and magnetic susceptibility measurements. The nature of the complexes formed in ethanolic solution has been studied following the molar ratio method also was studied stability constant and found to be stable in molar ratio1:1 of VL (IV) and CoL(II) while Pt(IV), Au(III) and Rh(III) complexes stable in molar ratio 1:2 as well as the molar absorptivity for these complexes were calculated. From the previous analyses, octahedral geometry was suggested for Pt (IV), Rh (III) and Co (II) complexes, square planar was suggested for Au(III) complex while V(IV) complex has a square pyramidal. Cytotoxic effect of PtL, AuL and RhL as well as ligand has been evaluated against RD cell line by using four different concentrations (500, 250, 125 & 62.5 µg/ml) respectively in three exposure times 24, 48 and 72 hrs and compared this effect with control positive Cis-Pt.


Article
Adsorption of Congo, Red Rhodamine B and Disperse Blue Dyes From Aqueous Solution onto Raw Flint Clay
امتزاز صبغات الكونكو الاحمر,والرودامين b و المنتشرة الزرقاء على طين الفلنت الخام من محاليلها المائية

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Removal of Congo red, Rhodamine B, and Dispers Blue dyes from water solution have been achieved using Flint Clay as an adsorbent. The adsorption was studied as a function of contact time, adsorbent dose, pH, and temperature under batch adsorption technique. The equilibrium data fit with Langmuir, Freundlich and Toth models of adsorption and the linear regression coefficient R2 was used to elucidate the best fitting isotherm model. Different thermodynamic parameters, namely Gibb’s free energy, enthalpy and entropy of the on-going adsorption process have also been evaluated. Batch technique has been employed for the kinetic measurements and the adsorption of the three dyes follows a second order rate kinetics. The kinetic investigations also reveal that intraparticle diffusion mechanism was operative


Article
Estimation Activity And Partial Purification Of Leucine Amino Peptidase (Lap) In Patients Wiith Diabetic Nephropathy
تعيين فعالية انزيم الليوسين امينوببتايد في المرضى المصابين بالسكر الكلوي وتنقيتة جزئيا .

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Leucine aminopepotidase (LAP)[EC:3.4.11.1] activity has been assayed in (50) serum samples of patients with diabeties naphrophathy D.N (non-insulin dependent diabetic (NIDD) , and (50)serum sample of healthy individuals without any clinically detectable diseases have been as control group. The aim of this study is to measure leucine aminopeptidase activity and partially purifying the enzyme from sera of patients with diabetes nephropathy The results of this study revealed that Leucine aminopeptidase (LAP) activity of nephropathy patient’s serum shows a high signifiacant increase (p < 0.001) compared to that of the healthy subjects.LAP was purified from the serum of patients with diabetes nephropathy by dialysis and gel filtration (Sephadex G-25) (fine ) (20 × 1.5 cm ) .A (1.37) fold purification of serum LAP from patients serum with diabetic nephropathy was achieved by using dialysis and this enzyme showed single grade increased to (8.33) fold by using gel filtration Abbreviation: Leucine aminopeptidase=LAP, Diabetes Nephropathy= D.N, Non- Insulin dependent diabetic= NIDD.


Article
Reactivity Ratios of the Copolymerization Styrene/ Methyl Methacrylate Using FT-IR Spectroscopy with Comparing to Mathematically Method
نسبة الفعالية للبلمرة المشتركة ( ستايرين – مثيل ميثا أكريليت ) باستخدام مطيافية FT – IR ومقارنتها بالطرق الرياضية

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Free Radical Copolymerization of Styrene/ Methyl Methacrylate were prepared chemically under Nitrogen ,which was investigated, in the present of Benzoyl Peroxide as Initiator at concentration of 2 × 10-3 molar at 70 °C, which was carried out in Benzene as solvent to a certain low conversion . FT-IR spectra were used for determining of the monomer reactivity ratios ,which was obtained by employing the conventional linearization method of Fineman-Ross (F-R) and Kelen-Tüdos (K- T). The experimental results showed the average value for the Styrene r1 / Methyl Methacrylate r2 system, Sty r1 = 0.45 , MMA r2 = 0.38 in the (F–R) Method and r1 = 0.49 , r2 = 0.35 in the (K–T) Method, The Results of this indicated show the random distribution of monomers in the copolymer.Likewise The monomer reactivity ratios were evaluated Mathematically in comparison in the (F–R) Method with the data STY r1 = 0.61 , MMA r2 = 0.47 , and r1 = 0.45 , r2 =0.38 in the (K–T) Method. And were used the values r1 ,r2 for STY / MMA Copolymers in computing integral curves for the instantaneous Copolymer composition throughout the whole range of conversion.


Article
Synthesis and Characterization of Derivatives Based on 4, - Dimercaptobiphenyl
تحضير وتشخيص بعض مشتقات قواعد شف الفينولية

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Starting from 4, - Dimercaptobiphenyl, a variety of phenolic Schiff bases (methylolic, etheric, epoxy) derivatives have been synthesized. All proposed structure were supported by FTIR, 1H-NMR, 13C-NMR Elemental analysis all analysis were performed in center of consultation in Jordan Universty.


Article
Stability of Back Propagation Training Algorithm for Neural Networks
أستقـراريـة خـوارزميـة التدريب المرتد للشـبكات العـصبيـة

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In this paper, we derive and prove the stability bounds of the momentum coefficient µ and the learning rate η of the back propagation updating rule in Artificial Neural Networks .The theoretical upper bound of learning rate η is derived and its practical approximation is obtained


Article
Semi – Bounded Modules
الموديولات شبه المقيدة

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Let R be a commutative ring with identity, and let M be a unity R-module. M is called a bounded R-module provided that there exists an element xM such that annR(M) = annR(x). As a generalization of this concept, a concept of semi-bounded module has been introduced as follows: M is called a semi-bounded if there exists an element xM such that . In this paper, some properties and characterizations of semi-bounded modules are given. Also, various basic results about semi-bounded modules are considered. Moreover, some relations between semi-bounded modules and other types of modules are considered.


Article
Unsteady Magnetohydrodynamics oscillating flow of third order fluid with central free stream velocity
الجريان المتذبذ ب اللا مستقر في حقل مغناطيسي لمائع من الرتبة الثالثة ذو سرعة منتظمة

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In this article the unsteady magnetohydrodynamics oscillating flow of third order fluid with free stream velocity is proposed. It is found that the motion equation is controlled by five dimensionless parameters namely the coecostic parameter 4, viscoelostic parameter Ф,acceleration/deceleration c,suction/blowing d and material constants α . The effect of each of these parameters upon the velocity distribution is analysised


Article
Numerical Approach of Linear Volterra Integro-Differential Equations Using Generalized Spline Functions
التقارب العددي لمعادلات فولتيرا التكاملية-التفاضلية الخطية بأستخدام دوال السبلاين العامة

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This paper is dealing with non-polynomial spline functions "generalized spline" to find the approximate solution of linear Volterra integro-differential equations of the second kind and extension of this work to solve system of linear Volterra integro-differential equations. The performance of generalized spline functions are illustrated in test examples


Article
Determination the Concentration of the Radon in some Drinking Bottled Water in Baghdad using LR-115 Detector
تحديد تركيز الرادون في المياه المعدنية في بغداد باستخدام كاشف الأثر LR-115

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In the present study ten samples of bottled water from Baghdad conservative were taken to measure the concentration of radon gas by using nuclear track detector LR-115.The result obtained are varying from(0.033)to(0.007)pCi.l-1and these values are very low than the allowed limits (5) pCi.l-1, and specific activity from bottled water has been calculated which was vary from (0.00027)to(0.00126) Bq.l-1 and these values are very low than allowed limits (0.0123) Bq.l-1 that mean the bottled water was treated with good treatment to decrease the side effect of radon

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