Effect of Annealing Temperature of Cugao2 thin Films by Using RF Magnetron Sputtering Technique on Optical and Structural Properties

Cu-based conductive oxide such as CuGaO2 is seen to be a promising transparent p-type oxide material. The study of p-type semiconductor CuGaO2 thin films have been carried out to investigate the effects of different parameters in providing the optimum result in achieving good optical transparency and conductivity of the thin film. The CuGaO2 thin films were fabricated on quartz substrate via the Radio Frequency (RF) magnetron sputtering technique with varying substrate temperatures and different annealing temperatures. The p-type thin films were deposited at a temperature ranging from room temperature, 100°C, 200°C and 300°C. The samples were also annealed varying from temperature of 500°C, 600°C, 700°C and 800°C. The fabricated sample were characterized using X-ray diffraction (XRD), UV-Visible spectroscopy, and atomic force microscope (afm). XRD showed a peak at 2θ = 36.10° (012). The optical transparency values achieved from UV-Vis spectrometer were seen to be approximately 80% and the bandgaps were found to be in the range of 3.34-3.43 eV which is in line with the bandgap value from the research on CuGaO2 thin films. From the afm, the mean surface roughness increases with increasing temperature and this is due to the increment of grain size. The highest grain size was observed at substrate temperature of 200°C

Plasma and whole brain cholinesterase activities in three wild bird species in Mosul, IRAQ: In vitro inhibition by insecticides

Plasma and brain cholinesterase activities were determined in three wild bird species to assess their exposure to organophosphate and carbamate insecticides which are used in agriculture and public health. In the present study, we used an electrometric method for measurement of cholinesterase activities in the plasma and whole brain of three indigenous wild birds commonly found in northern Iraq. The birds used were apparently healthy adults of both sexes (8 birds/species, comprising 3–5 from each sex) of quail (Coturnix coturnix), collard dove (Streptopelia decaocto) and rock dove (Columba livia gaddi), which were captured in Mosul, Iraq. The mean respective cholinesterase activities (Δ pH/30 minutes) in the plasma and whole brain of the birds were as follows: quail (0.96 and 0.29), collard dove (0.97and 0.82) and rock dove (1.44 and 1.42). We examined the potential susceptibility of the plasma or whole brain cholinesterases to inhibition by selected insecticides. The technique of in vitro cholinesterase inhibition for 10 minutes by the organophosphate insecticides dichlorvos, malathion and monocrotophos (0.5 and 1.0 µM) and the carbamate insecticide carbaryl (5 and10 µM) in the enzyme reaction mixtures showed significant inhibition of plasma and whole brain cholinesterase activities to various extents. The data further support and add to the reported cholinesterase activities determined electrometrically in wild birds in northern Iraq. The plasma and whole brain cholinesterases of the birds are highly susceptible to inhibition by organophosphate and carbamate insecticides as determined by the described electrometric method, and the results further suggest the usefulness of the method in biomonitoring wild bird cholinesterases

The use of the Electrometric Method in Measuring the Activity of Cholinesterase in Local Female Buffalo in north of Iraq

The aim of present study, was desigen to measurement of cholinesterase (ChE) activity by electrometric method in normal blood of adult Female buffalo, Cholinesterase was used in red blood cells (RBCs)to determine the linear relationship between incubation time and cholinesterase activity. The change in pH of RBCs cells reaction mixture (0.21 to 0.47) agreed with increased incubation time of 10 - 50 minutes and the pH change red blood cells reaction mixture (0.31 to 0.46) was associated with increased incubation temperature of 25-40C. recorded the highest activity of natural ChE the change in pH / 40 C° minutes in the red blood cells (0.46), whole blood (0.42) and least in the blood plasma (0.076). To illustrate the accuracy of the way the coefficient of variation in red blood cells and blood plasma and the whole blood (1.65%, 6.97% and 4.12%), respectively, this was done using 0.1 ml acetylcholine iodide 7.5% as the basis of the combination interaction of the current study. Quinidine sulfate specifically inhibited pseudo ChE in the RBC and whole blood, and it was estimated to be (6.5%,16.7%), where as true ChE activity was (93.5%, 83.3%).  Monocrotophos at concentration (0.5, 1 µM) and carbaryl at (5, 10 µM)  significantly inhibited RBCs ChE in vitro.  These results indicate that the used of modified electrometric method its simple, precise, efficient and have the validity for measurement of ChE activities in adult Female of buffalo

Antinociceptive and anti-inflammatory effects of Sida rhombifolia L. in various animal models.

The present study was carried out to determine the antinociceptive and anti-inflammatory activities of the ethanolic extract of Sida rhombifolia L. leaves in various animal models. The antinociceptive activity was measured using the abdominal constriction test and hot plate test, while the anti-inflammatory was assessed using the carrageenan-induced paw edema test. The dried leaves of S. rhombifolia was mixed with 95% ethanol (1: 10; w/v), incubated in water bath (55°C) for 72 h, filtered and evaporated to dryness (50°C) under reduced pressure. The sticky paste of extract was then emulsified using 0.1% Tween-80 in normal saline at concentrations required to produce doses of 30, 100 and 300 mg kg-1 body weight. Based on the data obtained, all doses of the extract, administered intraperitoneally, exhibited significant (p<0.05) antinociceptive and anti-inflammatory activities in a dose-dependent manner. In conclusion, the leaves of S.rhombifolia possessed antinociceptive and anti-inflammatory activities and confirms its traditional uses in the treatment of pain-and inflammatory-related ailments

Characterization of triphenylamino-based polymethine dyes

In this high-technology application, age functional dyes especially polymethine dyes have captured much attention of the researchers due to their immense potential for high-tech uses. Polymethine dyes show promising absorption spectra in the visible range, which can be easily exploited for the use of written text copying, photographic imaging, or photothermographic recording materials. Keeping this in mind, our research is composed of an i nvestigation of two triphenylamino-based polymethine dyes, a known polymethine dye 3 and a new one polymethine dye 5, which have been synthesized by the reaction of 4-(diphenylamino) benzaldehyde 2 and 4, 4´-(phenylazanediyl) dibenzaldehyde 4 with 4, 4´-vinylidene-bis(N, N-dimethylaniline) 1. Based on bis- dimethylaminophenylethylene moiety, the new polymethine dye showed more high absorption spectra in the range of 600– 700nmthanthatoftheknownpolymethinedyebasedonbis-dimethylaminophenylethylenemoiety.Theirmaximumspectrawere exhibited at 637nm and 653nm, respectively. Their leuco-converted reversible colored forms were also investigated.peerReviewe

Preparation and evaluation of veterinary 20% injectable solution of tylosin

A veterinary injectable aqueous solution of the antibiotic tylosin at a concentration of 20% was prepared under aseptic conditions in dark glass bottles each containing 100 ml. The preparation was intended for animal use only. It contained 200 g tylosin tartrate, 500 ml propylene glycol, benzyl alcohol 40 ml as a preservative and water for injection up to 1000 ml. The preparation was clear yellow viscous aqueous solution free from undesired particles. The preparation complied with the requirements for injectable solutions. It was active in vitro against E. coli (JM83). The preparation of 20% tylosin solution was safe under field conditions in treating sheep and cattle suffering from pneumonia at the dose rate of 1 ml/20 kg body weight, intramuscularly/ day for 3 successive days. In conclusion, we presented the know-how of a veterinary formulation of injectable solution of 20% tylosin for clinical use in ruminants. [Vet. World 2010; 3(1.000): 5-7