Baghdad Science Journal
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Synthesis and Polymerization of Poly Acryl Imide and One of Their Derivatives Then Curing the Product with Alkyl Halide
No full textThe present work involved four steps:
First step include reaction of acrylamide ,N-?-Methylen-bis(acryl amide) and N-tert Butyl acryl amide with poly acryloyl chloride in the presence of triethyl amine (Et3N) as catalyst, the second step include homopolymerization of all products of the first step by using benzoyl peroxide(BPO) as initiator in (80-90)Co in the presence of Nitrogen gas(N2). In the third step the poly acrylimide which prepare in second step was convert into potassium salt by using alcoholic potassium hydroxide solution.
Fourth step include Alkylation of the prepared polymeric salts in third step by react it with different alkyl halides(benzyl chloride, allylbromide , methyl iodide) by using DMF as solvent for(10-12) hours.
Structure Confirmation of all prepared polymers were proved using FT-IR, 1H-NMR and C13-NMR spectroscopy for some polymers. Other physical properties including softening and melting points of the polymers were also measured
Effects of ethanol on the hippocampus of rat Brain
No full textten albino male rates were orally treated daily 20% and 30% ethanol for 30 days treatment with 30%ethanol caused of hippocampuse of darckness google hospital patient
incidence of vulvovaginal candidiasis among iraqi women
No full textthis worl was carried oit on 50 woman they were attended to the gynecological out patinetand non albicans vared among age grou
new Estimator of the parameter of negative exponential
No full textthe main of this paper is to give a comprehensive presentation of estimating methods namely maximum likelihood bayes and proposed methods for the paramete
Preparation of phenolic resin complexes
No full textin this worl three types of complexed phenolic resins were prepared using various additives such as and improving the aim of this work higher mechanical properties this work is don
the kincetic studies of lh binding in benign an malignant uterine
No full textkinetic studies were carried out the uterine homogenate time course of the association of with LH in benign and malignant uterin
Role of peptidoglycan in the pathogenesis of Staphylococcus saprophyticus in mice
Get PDFThe pathogenicity of S. saprophyticus was studied in mice. A group of white mice were injected transurethrally using a catheter with S. saprophyticus S67 cell suspension in a concentration reached 109 CFU/ml. concomitantly, the role of its peptidoglycan in the pathogenicity was studied by injecting another group of mice with 0.3 mg/0.2 ml of partially purified S. saprophyticus S67 peptidoglycan extract. After autopsy, kidneys and urinary bladder showed several histopathological changes both in cells and peptidoglycan injected mice, included: hydropic degeneration, glomerulus shrinkage, congestion of renal vessels, infiltration of inflammatory cells, and dekeratinization in urinary bladder
Approximated Methods for Linear Delay Differential Equations Using Weighted Residual Methods
Get PDFThe main work of this paper is devoted to a new technique of constructing approximated solutions for linear delay differential equations using the basis functions power series functions with the aid of Weighted residual methods (collocations method, Galerkin’s method and least square method)
Proparyation of Low frequency microwave in dusty Plasma
No full textThe numerical simulation for the low frequency waves in dusty plasma has been studied. The studying was done by taking two special cases depending on the direction of the propagation of the wave:First, when the propagation is parallel to the magnetic field K//B,this mode is called acoustic mode.Second,when K B this mode is called cyclotron mode.In addition, every one of the two modes divided into two modes depending on the range of the frequency.The Coulomb coupling parameter was studied, with temperature T,density of the dust particles Nd ,and the charge of the particle Qd.The low frequency electrostatic waves in dusty grains were studied. Also, the properties of ion-acoustic waves and ion-cyclotron waves are shown to modify even through the dust grains do not participate in the wave dynamics. If the dust dynamics induced in the analysis, new “ dust modes “ appear
Generation of 16 Micrometer IR Laser by theOptical Pumping of CF4 Gas Molecules
No full textWe report here the observation of 16 µm superradiance laser action generated from optical pumping of CF4 gas molecules (which is cooled to 140 Kº by a boil-off liquid-N2) by a TEA-CO2 laser 9R12 line. Output laser pulses of 7 mJ and 200 ns have been obtained