Kirkuk Journal of Science

The peptic ulcer was developed and 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
20Ca20,
48
20Ca28,
90
40Zr50,
116
50 Sn66,
144
62 Sm82 and
208
62 Pb126 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 relation between the proton and
neutron root-mean-square radii, and nuclear matter properties has been
studied and examined by determining and discussion the statistical
Pearson linear correlation coefficient, to help in formulating nuclear
interaction.

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.

This research includes the study of the structural properties of the
prepared films The research aims to study the effect of each of the
irradiation with a carbon dioxide laser beam CO2 And a beam of X-rays,
as well as the effect of the doping process on the thin films of a polymer
polyvinyl alcohol (PVA) doped with aqueous zinc acetate
(Zn(CH3CO2)2H2O).By weight of 5%, the casting method was used to
make it into a thin film It is deposited on glass bases, its dimensions are
25.4*12.5 nm, and its thickness is approximately 380.42 nm. Then the
samples were divided into two parts, the first part was exposed to a CO2
laser beam at a constant energy of 10 Watt and different exposure times
(3,6,9,12) sec, then it was exposed to X-rays for 1.5 h, and fixing the
voltage of the X-ray machine at a voltage of (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, the samples were exposed
to a carbon dioxide (CO2) laser beam with a fixed energy of 10 Watt and
a fixed exposure time of 10 sec. The effect of irradiation in both cases
was studied on the optical and structural properties. The results of X-ray
diffraction (XRD) showed that the mixture (PVA+Zn) showed that the
crystalline nature of the compounds is amorphous. For the purpose of
studying the topography of the surfaces, the results of atomic force
microscopy (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) irradiation than in the case of
(X-Ray + laser).