Al-Nahrain Journal of Science

Sodium diethyldithiocarbamate (DTC) forms stable colored [MII(DTC)2] complexes where MII= Mn, Fe, Co, Ni, Cu and Zn. The characterization data suggested square planar geometrical structure for CoII, NiIIand CuII complexes and a tetrahedral structure for MnII, FeIIand ZnIIcomplexes. Six new complexes of general formula [M(DTC)2PAN] where PAN=1-(2-Pyridyl azo)-2-naphthol, were synthesizedby using two different routes of preparation. The structures of the complexes are discussed in relation to the analytical, spectroscopic, magnetic and conductivity data. The DTC-ligand exhibits bidentate behavior acting as S,S`-donors in all complexes. PAN was also behave as bidentate N,N` ligand. The electronic spectra along with magnetic moment values suggested an octahedral structure for [M(DTC)2PAN] complexes. The biological activity for ligands and the prepared complexes were studied against Escherichia Coli,Pseudomonas(G-) and Staphylococcus Aureus, Bacillus(G+) bacteria. Some of the complexes have a relatively strong deactivating capacity against the specimen of bacteria. The presence of PAN ligand increased the inhibition zone

New metal complexes of the ligand2-[5-(Pyridin-2-ylmethylene)-amino] 1,3,4-thiadiazol-2-yl-phenol(L) with the metal ions Co(II), Ni(II), Cu(II) and Zn(II) were prepared in alcoholic medium. The Schiff base was condensed [2-pyridine carbxaldehyde] with [2-amino-5-(phenyl-1,3,4-oxadiazole] in alcoholic medium. Two tetradentate Schiff bases ligand were used for complexation upon two metal ions of Co2+,Ni2+,Cu2+and Zn2+as dineucler formula M2L2. The synthesized compound and their metal complexes were characterized by FTIR Spectroscopy, electronic spectroscopy, Elemental analysis, magnetic susceptidbility measurements, thermal analysis , 1H-NMR spectra, and mass spectra. The activation thermodynamic parameters such as ΔE*, ΔH*, ΔS*and ΔG*were calculated from the TGA curve using Coats-Red fern method. From the measurements, structures of the complexes were proposed

Compounds containing 1,3-oxazepine and 1,3,4-oxadiazole (5)-(8) were synthesized by microwave assisted organic synthesis method through the condensation reaction of compounds (1 to 4) with phthalic anhydride respectively. The structure of the synthesized compounds were characterized by spectroscopic methods (1H NMR, FTIR). The synthesized compounds were screened for their antibacterial activity disc diffusion method

New tridentate ligand 1-(2, 2-dicyclohexylethyl)-3-(1, 5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)indolin-2-one (L) was synthesized from the reaction of 3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)indolin-2-one and dicyclohexyl amine. Monomeric complexes of this ligand, of general formulae [VOII(L)(SO4)], [MIII(L)Cl3] with M=CrIIIand FeIII, and [MII(L)Cl]Clwith (M = MnIIand CoII) are reported. The mode of bonding and overall geometry of the complexes were determined through FT-IR, UV–Vis, and mass spectral studies, magneticmoment measurements, elemental analysis, metal content, chloride containingand molar conductance. These studies revealed octahedral geometries for the FeIII, CrIIIcomplexes, square pyramidal for VO(II)complex and tetrahedral for the MnIIand CoIIcomplexes. The study of complexes formation via molar ratio and job method in DMF solution has been investigated and results were consistent to those found in the solid complexes with a ratio of (M:L) as (1:1). Hyper Chem-8 program has been used to predict structural geometries of compounds in gas phase theheat of formation (ΔHfº), binding energy (ΔEb), total energy, electronic energy and dipole moment at 298ok

Methimazole used to control the symptoms of hyperthyroidism associated with Graves' disease,and to maintain patients in a euthyroid state for several years, until spontaneous remission occurs Methimazoledeveloped in 1949, that is widely used in the treatment of hyperthyroidism. The usual starting dose is 10–30 mg/day, given orally as a single daily dose. This study conducted during the period from July 2012 to September 2013. This study includes fourty patients with hyperthyroidism that divided into two groups: group (A) which included twenty patients treated with methimazole and group (B) which included twenty patients without treatment. All patients admitted to the Baghdad Hospital. Subject matched in age, sex and BMI. In this study: urea, creatinine, albumin, glucose were determined by enzymatic method.The results of group (A) show that were significant elevation in Albumin level while there is significant decrease in glucose level. Negative correlation was found between methimazole treatment with glucose, while there was positive correlation between Methimazoletreatment and albumin.The results show a negative correlation between glucose and methimazole treatment that lead to consider methimazole suitable treatment for patient with hyperthyroidism that have family history with diabetes mellitus

The removal of hexavalent chromium from aqueous solutions usingbiopolymeric beads of crosslinked sodium alginate (SA) and carboxymethyl cellulose (SCMC) as the adsorbent is reported in this paper. The biopolymericalginate and carboxymethyl cellulose beads were prepared and characterized by FTIR spectra. The studies of adsorption of Cr(VI) were conducted by varying various parameters: such as contact time,pH,amount of adsorbent and concentration of adsorbate. A comparison of kinetic models applied to the adsorption of Cr(VI) ions on the adsorbents was evaluated for the pseudo-first-order, the pseudo second-order and intraparticle diffusion kinetic models respectively. Results show that the pseudo second-order kinetic model was found to correlate the experimental data well.The experimental equilibrium data were applied to Langmuir and Freundlich isotherm models and their equilibrium parameters were estimated

The present research involved preparation of heterocyclic polyacrylamides using reaction of polyacryloyl chloride with 2-aminobenzothiazole in the presence of a suitable solvent and amount of triethyl amine with heating. After that, Dibutylphthalate (DBP) has been used as a plasticizer for some prepared polymers, this plasticizer has shown a good behaviour toward change of softening point for thesepolymers, the optimal weight ofDBP that must be added to polymer has been estimated by plotting between softening points of polymers with weight of DBP that added to polymers, the method used in this research can be applied to other polymers and other plasticizers to find optimal weight of plasticizer that give minimum softening points

Nanometre sized semiconductor quantum dots as fluorescent materials are now becoming as ubiquitous as the organic dyes that preceded them. By virtue of their tuneable optical properties, narrow emission profiles and photostability, QDs have proved themselves as resilient and multifarious in both their applications and their underlying photophysics compared to their organic dye counterparts. Single Molecule Microscopy techniques (SM) are especially relevant to macromolecular biochemistry as chemical processes occurring within large molecules that are often too complicated to study in the ensemble.Using both total internal reflection (TIR) and Confocal Microscopy (CM) and both image processing and photoncounting to achieve understanding of the binding kinetics and dynamic properties exhibited by the molecule via FRET studies. Several versions of the system have been examined to optimize the FRET pairing of donor/acceptor tags, achieve quantitative and ratiometric bioconjugation to nanocrystals and perfect techniques of microscopy and image processing

The characteristics of electric discharge in a gap between two (parallel -plate) dielectric plates, which called dielectric barrier discharge(DBD), are studied for three dielectric materials Teflon, Glass and Silicon. The gap is filled with the argon gas in atmosphere pressure at ambient temperature. The separation of plates is 2mmand each dielectric of 1mmthickness and 10 cmin diameter. A sinusoidal voltage 750 with 50 kHzfrequency is applied to one of the dielectric plates, and the other plate is grounded. Fluid model (after solving Boltzmann equation) is used to simulate the discharge within the configuration.The simulation results are showed a good diagnostics for the characteristics of the dielectric barrier discharge, through studying properties of breakdown of the gas, such as ,electric potential and field distributions, electron density, meanelectrons energy ,electrons and ions currents densities ,and the total plasma current density

The nucleon momentum distributions (NMD) and the elastic electron scattering form factors F(q) of the ground state for some 1f-2p shell nuclei for 59Co, 61Ni, 63Cu and 65Cu are calculated using the Coherent Density Fluctuation Model (CDFM) and expressed in terms of the fluctuation function (weight function) 2)(xf. The fluctuation function has been related to the nucleon density distribution (NDD) of the nuclei and determined from the theory and experiment. The property of the long-tail behavior at high momentum region of the NMD has been obtained by both the theoretical and experimental fluctuation functions. The calculated form factors )(qFof all nuclei under study are in good agreement with those of experimental datathroughout all values of momentum transfer .q

A two-mirror Cassegriantelescope design is presented. The primary mirror is paraboloid with an aperture of 1m in diameter. The secondary mirror is hyperboloid with an aperture that makes a light obstruction of merely 0.25%. The telescope resolving power is twofold the one a spherical primary mirror produces with the same aperture. Aberration elimination is obtained by modifying the radius of curvature of the secondary mirror and also its asphericity factor. Achieving this work demanded constructing a programming code for tracinglight rays. This code not only used to tracing the general type of light rays (skew ray) through all Cartesian surfaces but it is also used to exhibit the telescope performance when varying the secondary mirror radius of curvature and its asphericity factor

Mutacin production by Streptococcus mutansS2 was detected by inoculating production medium (Brain Heart Infusion broth supplemented with yeast extract 2% (w/v) and CaCO3 1% (w/v)) with fresh culture of the bacterial isolate. The inhibitory effect of mutacin produced by S. mutansS2 was studied by detection the inhibitory effect of mutacin against the test microorganism (Streptococcus pyogenes) grown on BHI agar plates.Optimum conditions for mutacin production from S. mutansS2 includes optimum carbon, nitrogen and phosphate sources and their concentrations, optimum temperature and pH. were studied.Results showed that theseconditionsinclude the supplementation of the production medium (Brain-Heart Infusion brothcontaining 1%CaCO3) with sucrose as a sole source for carbon and energy at a concentration of 3%, and yeast extract as a nitrogen source at a concentration of 2%, and KH2PO4as a phosphate source at a concentration of 0.5%, with initial medium pH of 7, then inoculating with fresh culture (OD 0.8), and incubation at 37°C for 24 hours in candle jar. Under these conditions the maximum mutacin production S. mutansS2, causing maximum inhibition effect against test microorganism (S. pyogenes) reached 35 mm in diameter

This study was conducted to evaluate antitumor effects of roesmarinus (Rosmarinus officinalis)extracts (aqueous and methanol) on Rhabdomyosarcoma; RDcell lineand a normal cell line; mouse embryo fibroblast; MEF). Chemical detections of Rosemary extracts revealed that the aqueous and methanol extracts were positive for flavonoids, alkaloids, phenol, terpenes, saponine, glycosides, steroids and tannins.The percentage growth inhibition (PGI) of five leaf extract concentrations 50, 100, 250, 500 and 1000 (μg/ml) were assessed in vitrousing RD and MEF. The results revealed that the five concentrations of the plant extracts showed anti-tumor properties in a concentration-dependent manner, and the methanol extract recorded better values of PGI than aqueous extract in RD cell lines, while, less PGI values were recorded in the MEF cell line. This experiment investigated the cytotoxic activity of the methanolic and aqueous extracts of Rosemary at concentrations (50 -100 -250 -500 -1000 μg/mL) on RD cell lines. A dose-dependent reduction was observed in treated cell line after 24 hrs. of treatment, but lower concentrations exhibited lower cytotoxic effects. Maximum inhibition of proliferation was achieved at the highest concentration (1000 μg/mL)

ToexplorethepotentialforinvitrorapidregenerationofSpanishdagger(Yuccagloriosa'Variegata'),differentconcentrationsof6-Benzyladenine(BA),1-naphthaleneaceticacid(NAA)andcombinationsofbothwereevaluatedforcallusinductioninitiatedonleafandbud(terminalandaxillarybuds)explantsusingMurashigeandSkoog(MS)medium.Callusresponseinductionpercentage,freshweight,colorandtextureofthecalluswereassessedafter1.5and6.0monthsinculture.TheappropriatemediumforcallusinitiationonleafexplantswasMSmediumsupplementedwith6.0mg/LNAA.Acombinationof0.2mg/LBAand1.5mg/LNAAalsoexhibitedaremarkablecallusinductiononbudexplants.Effectofthidiazuron(TDZ)additiontotheculturemediumsupplementedwithBAandNAAatvariousconcentrations(0.0,0.1,0.5or1.0mg/L)wasinvestigated.FastercallusgrowthandmorecallusproliferationonfrombudexplantswereobservedinMSmediumsupplementedwith0.1mg/LBA+1.5mg/LNAA+1mg/LTDZ.ResultsshowedthatTDZwasmoreeffectiveoncallusinductionthanBAorNAA,howeversomecombinationsgavedirectshootregeneration.Calliderivedfrombudexplantswerewhitishtocreamyandcompact,whilecalliderivedfromleafexplantsweregreenish

Fifty samples of buccal swabs were collected from male oral cavity,then genomic DNA was extracted from each sample by two methods,the manual organic phenol chloroform methods and prepfiler forensic extraction kit methods.The concentration of genomic DNA extracted was measured by using Quantifiler®DuoKit throughout detection the SRY (FAM™-labeled probe), RPPH1(VIC®-labeled probe) and an Internal Positive Control-IPC (NED™-labeled probe).Results showed that the concentration of genomic DNA in buccal swab was ranged between 0.26 and 9.422 ng/ul. these samples work with a serial dilution decimal, as well as PCR .Then introduced to the device 3130xl Genetic Analyzer 16-capillary array system,The results showed that the concentrations is preferable which is located between 25-50 pg, as this did not appear in the concentrations of any problems and the emergence of the peaks clearly Compared with the ALLELIC ladder and positive control, After the election concentrations were chosen Thresholds,Peak amplitude thresholds

This study was designed to evaluate osteogenic potential of mesenchymal stem cells (MSCs) isolated from mouse bone marrow in vitro. MSCs were isolated through collecting the thighbone (femur and tibia). Cells were flushed from bones and MSCs isolated based on the ability of adherence to plastic surfaces. Reactivity MSCs to CD105 and CD34 were tested by immunocytochemistry. Isolated MSCs exhibited positive reactivity to CD105 and negative for the haematopoietic surface marker CD34. Differentiation of isolated MSCs into osteoblast was induced by osteogenic medium consisting of high glucose-Dulbecco's Modified Eagle Medium(DMEM) supplemented with 50 μg /ml Ascorbic acid, 1nM dexamethasone and10 Mm of beta glycerophosphate disodium salt hydrate after 21 days. Osteoblast activity was monitored by evaluation alkaline phosphatase (ALP) activity in osteogenic medium by Reflotronat (0, 7, 14 and 21) days of differentiation. Results recorded that a significant increase in Alkaline phosphatase activity in osteogenic medium at 7 and 14 day culture in comparison with zero day and decreased at 21 day

ToleranceofRutagraveolenstoZnwasinvestigatedinvitro.Heavymetalstresswasinducedbysubculturingsaltanddroughttolerantcalluspiecesweighting100mgonMurashigeandSkoog(MS)mediumsupplementedwith1mg/l2,4-dichlorophenoxyaceticacid(2,4-D)and0.5mg/lkinetin(kin).Znwasaddedatconcentrations0.1,0.5,1.0,2.0or3.0ppm.Resultsshowedthatcallusrelativefreshweight(RFW)decreasedwithincreasingmetalconcentrations.Toleranceindex(TI)wasassessedatdifferentmetalconcentrationsandstressdurations.Resultsalsoindicatedthatcallusculturesweremoretoleranttoheavymetalsattheconcentration1ppm.SpectrophotometricestimationofmetalconcentrationsinsideplanttissuesamplesshowedthatcallusculturesstandformoderatelyhighconcentrationsofZnreached7100μg/gdryweight.Heavymetaltolerantcalliwereselectedandshootswereregeneratedon½MSmediumsupplementedwith2.5mg/lBenzyladenine(BA)

The aim of this paper is to introduce a new framework for studying bi-capacities and its integrals, which is alternative framework from defined by Grabisch and Labreuche ([7], [8]). First, we define bi-capacities through introducing a notion of ternary-element sets. Secondly, we propose model of bipolar Choquet integral with respect to bi-capacity based on ternary-element sets, and we study basic properties of new model

The formal balls in fuzzy normed space????(characterized by closed balls in????) are ordered by reverse inclusiondepending on the concept of level sets. The set of formal balls in a fuzzy normed space is called a fuzzy domain normed space denoted by ????????. This set is directed complete partially ordered set (dcpo), its maximal elements are the suprema. A contraction mapping principle is defined on ????????. Banach fixed point theorem is studied and proved on ????????

In this paper, a mathematical model consisting of the prey-predator model involving disease in both the population with harvesting of preyis proposed and analyzed. The existence, uniqueness and boundedness of the solution are discussed. The existences and the stability analysis of all possible equilibrium points are studied. Finally the effects both of the disease and harvest on the dynamical behavior the model arediscussed numerically

With the proliferation of the digital crime around the world, there are numerous and diverse digital forensic investigation models for driving digital investigation processes. Now more than ever, it must be a criminal investigation to obtain digital evidence which wouldn't be admissible in court. Therefore, digital forensic investigation should be implemented successfully, and there are a number of significant steps that should be taken into account. Each step and phase produces documents that are essential in understanding how the investigation process is built.The aim of this paper is to study models/ frameworks for the digital forensic investigation over a time period of ten years and find out the degree and level of attention to the process of documentation. This paper also includes definitions and descriptions of the basicand core concepts that the frameworks/ models use