Academic Science Journal

Pseudomonas aeruginosa possesses two types of iron transport systems and one of them is
Pyoverdine, which is fluorescent under the UV light and encoded by the PvdA gene. This
pigment is great importance in iron deficiency or its loss affects to cell division and stops the
DNA manufacturing process. The other type of pigment is Pyochelin, and that both types are
formed during infection with P. aeruginosa and tissue invasion in the host's body. The DNA
sequence was analyzed for the pvdA gene in P. aeruginosa that isolated from the burns. The
results of this study showed that 15 isolates of the P. aeruginosa from 23 isolates have pvd A
gene at 65.22%, while 8 isolates did not have the pvdA gene at a rate of 34.78 %, with molecular
weight of 1281 base pairs. Also, the analysis of pvd A gene sequencing showed that there are
21 genetic mutations. Include insertion, deletion and replaced.

Smartphones have become essential in our daily lives. Many works can be done by using it like,
browse the internet, and download many applications for each device through the available
store. As a result, the number of malware applications downloaded also increases. These
malware carries out various activities behind the scenes, such as breach of confidentiality,
breach of privacy, loss of confidentiality, system breakdown, theft of sensitive information, etc.
Many types of research and studies have proposed different techniques to detect malicious
programs, but these measures contain weak points, which are illustrated by efficiency, speed,
and lack of comprehensiveness. In this paper, a proposed system is designed and implemented
to detect malware in smartphones using anomaly detection technology that begins to extract the
important features that play an effective role in detecting malicious code and applying machine
learning algorithms. The proposed system has been tested using a hybrid Genetic algorithm,
and the Support Vector Machine data has been registered with an accuracy of (0.9282%). The
experimental results indicate that the proposed system has a high average accuracy rate
compared with other existing methods where there is a (0.8848%) average accuracy using
Probabilistic Neural Network, while the average accuracies of (0.8835%) and (0.8715%)
respectively with Support Vector Machine and K-Nearest Neighbors.

Pulsed laser ablation in liquid (PLAL) has become a technique of growing importance for the
processing of micro and nano particles of metals and metal oxides. In comparison with different
physical and chemical techniques, this approach has many advantages. This work was dedicated
to the production of zirconium oxide (ZrO2) micro and nano particles from a solid zirconium
target submerged in distilled water using PLAL technique to study the effect of number of
pulses on the structural and optical properties of the produced colloidal solution. Many kinds
of tests such as Fourier transform infrared (FT-IR), UV-visible (UV-Vis.) and field emission
scanning electron microscopy (FE-SEM) have been used to characterize the products. The (UVVis.)
absorption spectra of all colloidal samples have shown broad peak at wavelength of 289
nm. The functional groups of (ZrO2) in liquid media were also determined by Fourier transform
infrared (FT-IR) analysis. Field emission scanning electron microscope (FE-SEM) images
verified the micro and nanostructure of produced materials .

One of the common types of cheese manufactured in Iraq is Al-arab cheese. The reason for this is due
to high proportion of protein ,texture and price. However, the conventional way that used to produce
and sell it affords many opportunities for microbial contamination. To determine the hygiene quality of
Al-arab cheese production in Diyala, 75 samples were collected randomly from (Baqubah, Dali Abbas,
Khalis, Jalawlaa, Khan bani saad) towns. All samples were cultured on nutrient agar and positive culture
was subjected to antibiotics susceptibility test using (Trimethoprim, Tetracycline Vancomycin,
Cloxacilin, and Amoxicillin). Staphylococcus aureus recovered from Baqubah, Khalis, Khan bani saad,
and Jalawlaa respectively (80% ,60%, 40% and 20%). Escherichia coli was the predominant in samples
gathered from Dali abbas, Baqubah, Khalis, and Jalawlaa respectively (80%, 60%,60% and 20%).
pseudomonas spp. Recovered from Baqubah, Khalis, and Dali abbas respectively (40%, 10% and 40%).
Salmonella spp. was recorded the lowest percentage of contamination (10%) in the samples were
collected from Al-Khalis
Trimethoprim was effective against S. aureus and Klebsiella with mean inhibitory zone diameter 34mm
and 36,7mm respectively while the inhibitory zone diameter for E. coli was (30.3) toward tetracycline.
Amoxicillin, Cloxacilin, and Vancomycin were not effective against Staphylococcus aureus, E. coli,
Klebsiella spp.

3 mol% yttria stabilized tetragonal zirconia polycrystalline/Alumina (3Y-TZP/Al2O3)-Glass
composite was fabricated successfully by infiltration of liquid glass phase into (3Y-TZP/Al2O3)
porous body. Porous (3Y-TZP) was prepared first by pressing the powder mixture of (3Y-TZP)
with 20 wt.% of nano alumina Al2O3 and )0,10,20,30,40) wt.% of graphite particles uniaxially
to form cylindrical shaped specimens. The specimens were sintered at 1500 °C for 2 hours. The
glass mixture of (18wt.% of hydroxide lithium, 78wt.% feldspar and 10 wt.% of nano titanium
dioxide) were melt infiltrated into porous (3Y-TZP/Al2O3) at 1185 ᵒC by capillary pressure to
form composites. The glass amount penetrated into porous 3Y-TZP/Al2O3 depends on the
amount and size of porosity exist in the alumina toughened zirconia (ATZ) structure. The results
showed that the amount of glass infiltrated through (3Y-TZP/Al2O3) structure depends on the
amount and size of pores. Increasing the amount of porosity and its size led to decrease the
capillary action within pores through specific time. The porosity of the specimens was in the
range of (7-50.5) %, while the diametrical strength values were in the range of (80.1-26.7) MPa.
The glass infiltration process shows a very low values of shrinkage ranging from (0.21% to
0.31%).