Kirkuk University Journal-Scientific Studies

The peptic ulcer was developed at appeared recently as a contagious disease, distributed all over the world and the most common cause of this disease is H.pylori. Laboratory diagnosis was used to detect this bacterium by several methods which include invasive and non-invasive methods. . ELISA technique was used to identify IgG, IgM, and IgA antibodies against H. Pylori. All participants underwent endoscopic procedures at the Duhok City/Azadi Hospital/Endoscopy Center, and a highly skilled endoscopist carried out the procedures, As well questionnaire form has been filled out through the interview with the participants to enroll the socio-demographic factors which include occupation, history of treatment, and endoscopic findings. Among the 90 participants, the serological prevalence is 72%, 7%, and 30% of positive antibodies IgG, IgM, and IgA respectively. The housewife group recorded a high percentage of positive IgG whereas low percentages were recorded for the military group. A significant immune reaction of IgG in the student group has been noted. In addition to the housewife group to the positive IgM. The effect of those who had treatment previously has been revealed by positive IgG. Moreover, antral gastritis had a significant relationship with positive IgG by using ELISA. in the conclusion, the Housewives group was more infected with this bacterium, and a significant association was found between antral gastritis and seropositive IgG .

This research deals the morphometric characteristics of the Al-Khoser river basin, which is located north of Mosul, using the GIS software to create a database for the drainage basin and convert these data into digital maps that describe the impact of its natural characteristics. Digital elevation model (DEM) was used to construct the drainage basin bounds and valley streams network, as well as to determine morphometric parameters using a series of special mathematical equations after relating them to the drainage basin's natural characteristics.
The basin is characterized by a high relief ratio of (17.23) m/km, this can be attributed to an increase in the distance between the highest point in the basin, which reached to (1238) meters and its lowest point (215) meters. And a reduction in roughness and drainage density of )2.55( and )2.5( km/km2, respectively. Different parts of the basin have different structural conditions and types of rocks. Increased erosion activity in the basin is evidence of this geomorphological activity. It has been observed that the duration, strength, and intensity of the rain that falls on the basin parts changes from the source to the estuary.
The value of the basin's form factor is (0.31), indicating that its shape is elongated, which leads to the loss of huge quantities of water throughout the long runoff period through evaporation and leakage, hence reducing the likelihood of flooding. The study suggested building a few dams on the Al-Khoser river's tributaries to store rainwater and use it to irrigate agricultural land.

In this work, the effect of incompressibility modulus KNM and symmetry energy density J on charge distribution and root-mean-square radii of neutron Rn and proton Rp has been investigated for light, medium and heavy closed-shell nuclei 40, 48Ca, 90Zr, 116Sn, 144Sm and 208Pb within the framework of self-consistent Hartree-Fock (HF) with 20 types of Skyrme interactions having wide range of nuclear properties such as incompressibility modulus KNM and symmetry energy density J. The nuclear charge densities have been obtained and compared with the experiment data to give us a picture about the internal structure of the investigated nuclei. Also, the sensitivity of proton and neutron root-mean-square radii to nuclear matter properties has been examined by determining and discussion the statistical Pearson linear correlation coefficient.

Preparation of iron salts Fe + 3 Fe+2 This study aims to prepare super-magnetic nanoparticles coated with chitosan-CS SPIONs in an easy and inexpensive chemical way, which is the method of co-precipitation mediated in aqueous solution and mixing it with a solution of chitosan CS dissolved in dilute citric acid 1 % and precipitation of this mixture in a solution of NaOH and sodium citrate acid as a surfactant inside a closed system using an inert atmosphere for nitrogen gas N2 and a packaging method during the preparation. These particles were diagnosed by (XRD), and it was found that the particles coated with chitosan SPIONs-CS contain the crystal structure of iron oxide and that the polymer shell did not affect its crystal phase. It has a super magnetic property that decreases with increasing concentrations of the chitosan polymer encapsulating the particles, but it is sufficient to respond to the magnetic field. It was found from the diagnostic results that the prepared secondary particles were within the nanoscale 20 nm according to in TEM, which is Converging with the obtained size of 22.8 nm XRD technique, Zeta potential analysis results showed that the SPIONs-CS had a negative surface charge after encapsulation with a zeta voltage of -28.4mv at 0.125 chitosan concentration.g CS . (SEM) diagnosis results showed that the particles are spherical in shape and spaced according to the CS chitosan concentrations used for encapsulation with an average diameter of (27.58nm, 20.023nm and 35.127nm) for three concentrations (0.100g, 0.125g, 0.150g), respectively.

the study of the structural properties of the prepared films The to study the effect of each of the irradiation with a CO2 And a beam of X-rays, as well as the effect of the doping process on the thin films of a (PVA) doped with aqueous zinc acetate. By 5%, the casting method was used to make it into a thin film It is deposited on 25.4 * 12.5 nm, and its thickness is approximately 380.42 nm. Then the samples were divided into two parts, the first exposed to a CO2 laser beam at a constant energy of 10 Watt and (3,6,9,12 sec), then it was exposed to X-rays for 1.5 h. And fixing the voltage of the X-ray f (5KV). The second section of the samples were exposed to X-rays for different periods of time (0.5, 1, 1.5, 2, 2.5 h) with a voltage of (5 KV). Then, t exposed to a (CO2) laser with a energy of 10 Watt and a fixed exposure time of 10 sec. The effect of irradiation in both cases studied on the optical and structural properties. The results of (XRD) that the mixture (PVA + Zn) showed that the crystalline nature is amorphous. For the purpose of studying the topography of the surfaces, the results of (AFM) showed a decrease in the particle size after irradiation of the mixture, and it was found that the effect of irradiation is more responsive in the case of (Laser + X-Ray)than of (X-Ray + laser).