Tikrit Journal of Pure Science

The study have been done to detect Human Respiratory syncytial virus (HRSV) infections among hospitalized children under 5 years old in Beiji city Salah-Aldin Governorate, in addition to identify the risk factors associated with the virus. Whole blood samples were taken from 300 hospitalized children between the end of October 2021, to the end of June 2022, each sample was analyzed for HRSV by immunoglobulin M (IgM) specific to HRSV determining from blood specimens in serum using enzyme-linked immune sorbent assay (ELISA) technique. Of the 300 serum samples, Respiratory syncytial virus (RSV) was found in 120 (40%), 63 (42%) females, and 57 (38%) males. The age group was more susceptible to infection between 7-12 months for RSV at a rate of 25%. The study revealed that 61.66% of children exposed to smoke from one or both parents was positive for RSV, while 38.33% showed negative results for the presence of RSV. Considering the type of feeding, the current study showed that RSV infection was demonstrated in a higher percentage in patients with bottle feeding 60%, while a low percentage was demonstrated in patients with breastfeeding at 13.3%. Our results indicated the prevalence of RSV among children after imposing vaccination and reducing non-pharmaceutical interventions.

The study of the environment and geographical distribution of several species of the Cardueae tribe in middle and northern Iraq was the focus of the current investigation. The study involved doing a field survey of a several Iraqi districts to determine new areas where the Cardueae tribe species might spread. As well as, the flowering period of the examined species was identified. The findings demonstrate the studied species' spread in north, north-east, and western regions. The more widespread and tolerant of varied environmental conditions was the species Silybum marianum L., and the least prevalent of the studied species was Carduus getulus Pomel., whereas the other species were relatively common in the study area. Maps of the geographic distribution of all species under study were also created.

The current study was conducted in Kirkuk city at Al-Shifaa 14 hospital from November 2021 to March 2022, indicated the bacteria causing secondary pneumonia isolated from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) patients and the role of IL-6 and IL-17 in these infection.
Sputum samples were used to obtain the bacterial isolates, and API testing was used to confirm the species level identification. Using an enzyme-linked immunosorbent assay (sandwich ELISA), the levels of IL-6 and IL-17 in the blood were evaluated. The study documented several bacterial species in a single infection (56/87.5%) or mixed bacterial infection (8/12.5%). The most common isolated bacteria species was Klebsiella pneumoniae (35.95%) followed by Staphylococcus aureus (31.25%), E. coli (17.19%), Pseudomonas aeruginosa (10.94%), and (1.56%) for each of Klebsiella oxytoca, Acinetobacter baumannii and Cronobacter sakazakii. The study recorded a high significant difference (P <0.01) between the patients (22.2±6.82) pg/mL and the control group (58.39±11.15) pg/ mL concerning IL-6 also a high significant difference (P <0.01) between the patients (101.79±27.13) pg/mL and the control group (58.39±11.15) pg/mL concerning IL-17.
In conclusion, K. pneumoniae and S. aureus were the predominant isolated bacteria from COVID-19 patient's lung and there was a highly significant increase in IL-6 and IL-17 levels in secondary bacterial pneumonia in COVID-19 patients.

A facile synthesis of some new 1, 2- thiazine derivatives by the Claisen-Schmidt reaction-induced aldolic condensation of enolizable aromatic ketones with substituted benzaldehydes, and then they were treated with urea and thiourea to obtain the corresponding pyrimidine derivatives. IR, 1H and 13C-NMR spectroscopy were used to analyze all produced substances. The synthesized compounds (5, 9-11 and 14-15) were screened for their biological activity against two species of bacteria and fungi according to the gram stain, and all compounds indicated growth inhibition against Escherichia coli, Staphylococcus aureus, and fungi respectively with different inhibition zones starting from 11 to 26 mm. In all cases, the used two doses were (10 mg/ 1 ml in DMSO) and (20 mg/ 1ml DMSO).

An Engineering study was carried out for five stations in the Lower Zab basin, southwest of Kirkuk, to determine the viability of the Quaternary age sediments for concrete works. The geotechnical evaluation results included that the coarse aggregate's grain size analysis is identical to the gradient class (63.0 mm) according to the [1] classification. As for the gradation of fine aggregate for the sediments of the study area, the results of the granular gradient of the samples after matching them with the limits of AASHTO specification showed that they are identical to the specification with slight differences on some sieves. The elongation and flatness tests showed that the highest percentage of the longitudinal shape is (19.2%) and flat-shaped particles is (28.8%), within permissible limits according to British standard [2], the specific gravity for coarse aggregate was between (2.60 - 2.64) and saturated specific gravity (2.61 - 2.65), and the values of specific weight for fine soil ranged from (2.72 - 2.64) which is suitable for use in concrete works. The results of the laboratory test of the durability tests - The Los Angeles test for the samples showed that the highest percentage for weight loss was (20%), which is suitable for use in the concrete according to the Iraqi standard [3], the results of the laboratory test for stability showed that the percentage of weight loss for coarse aggregate (gravel) by the effect of sodium sulfate solution and for the number of 5 cycles of the samples ranged between (8.3% - 4.1%), which is valid for use in concrete works according to the American specification [4]. The results of the resistance tests - the point load test for stations (S1, S3, S4) within the classification range of very strong - extremely strong, and the two stations (S2, S5) within the class strong - very strong - extremely strong compared to the classification of [5], and they are good for concrete works. It was found from the results of the chemical tests the gypsum content, organic matter content, Total soluble salts, and the sulfate content of the samples of the study area are suitable to for concrete works according to British Standard [6], which is suitable for concrete works, testing the compressive strength of concrete cubes ranged between (24.93 - 18.22 MPa) for age seven days and ranged between (33.02 - 29.76 MPa) for 28 days for reference mixture, Which is (4:2:1 by weight). According to the Iraqi standard specification [7], the compressive strength values of the samples are suitable for regular unreinforced concrete, and in comparison with [8] classification, it was apparent that the concrete produced is of moderate endurance. And suitable for concrete works According to [9].

To evaluate the probability of usage as a riprap, the study aims to identify some of the mechanical and physical characteristics of limestone rocks in the Fat’ha Formations in the northwest plunging area of the Hamrin Anticline fold within the Sallahaddin Governorate. These rocks have specific gravities between (2.161-2.521), dry density between (1.92-2.148) gm /cm3, water absorption rates between (4.104%-9.774%), mechanical abrasion between (29%-45.5%) and chemical abrasion ratios between (3.2%-5.8%), According to the specifications of the Florida Department of Transport and the Iraqi Standard Specifications No. (1385) for the year (1989), as well as the American standard (ASTM), it was found that most limestone rocks are not suitable for use as riprap stones in most stations because the percentage of absorption and dry density fall outside the limits of the specification, and it was found that limestone can be used as riprap stones only in the station (3) as a riprap stone for channels and trenches according to the specification of the Florida Department of Transport, as well as the station (4) suitable as a riprap stone according to the Iraqi standard No. (1385) for the year (1989).

This study deals with the minerology of Injana Formation (Late Miocene- Pliocene) at Zawita and Daigala sections, north of Iraq. A total of 13 samples are collected from Injana Formation. The heavy minerals assemblages include opaque minerals, orthopyroxenes, clinopyroxenes, zircon, rutile, epidotes, garnet, amphiboles, tourmaline, chlorite, biotite, kyanite, muscovite and staurolite. The source rocks of these assemblages of heavy minerals are mafic igneous and metamorphic rocks principally as well as acidic igneous and old sedimentary rocks. The ZTR indices indicate the Injana sandstone is mineralogically immature .The tectonic origins of Injana Formation is characterized as lithic recycled of recycled orogeny .The mudstone consists of mixture of clay and silt percentage variable. The major clay minerals are chlorite, kaolinite, illite and smectite. The non-clay minerals are calcite, quartz and subordinate feldspars. The mineralogy of the clay fraction of Injana mudstone leads to be climate arid to semi-arid

This study aims to assess the stability of the rock slopes on both sides of the road linking (Shaqlawa- qoysinjaq) to some of the exposed geological formations within the northeastern limb of the Safin anticline (Qamchuqa, Bakhma, Shiranish), where (6) stations were selected and a classification was made. An engineering description of the rock layers through a comprehensive survey of the study area, the results of the kinematic analysis by the kinematic analysis software (DIPS) showed that the possible percentage failures were represented by rock toppling (83.33%), planar sliding by (58.33%) and then wedge sliding by percentage (83.34%), By studying the factors affecting the stability of slopes in the region, it was found that the main factor causing the failures is the result of cutting the fold for the purpose of road construction, in addition to the structural and lithological factors.

Although aluminum (Al) and vanadium (V) have been shown to be cytotoxic, titanium and its Ti-6AI4V alloy have been utilised extensively as implant materials for many years. This is due to new titanium alloys consisting of non-cytotoxic substances like molybdenum (Mo), tantalum (Ta), niobium (Nb), zirconium (Zr), or tin (Sn) have advanced when treated as a cubic β-phase alloy, which has led to the investigation of Al and V free titanium alloys. When configured as a cubic β-phase alloy, they exhibit abnormal corrosion resistance as well as decreased elasticity moduli that are comparable to the substance of the bone they are repairing.
This work uses synchrotron x-ray diffraction to calculate the unit cell volume of beta-phase gum metal
(Ti–23Nb–0.7 Ta–2Zr–1.2O-TNTZ-O system) at pressures 50, 45, 24, and 40 GPa respectively. The Murnaghan, Viet and Birch-Murnaghan equation of state has been applied using the bulk modulus measurement it was about 88.7GP . Additionally, applying the same technique, the bulk moduli of Ti-7.5Mo-1O, Ti-7.2Mo, and Ti2448 have been determined to be 116.1, 50.2, and 116.2 GPa, respectively. The Ti-7.2Mo system has a below-average bulk modulus when compared to all other alloys. For biomedical applications like hip and human bone replacement, which will be the subject of the study, it would be most appropriate to change the (Ti-xMo-xNb-xTa) alloy and investigate its mechanical properties.

This work investigated experimentally and theoretically the I-V output change, the hydrogen production, and the efficiency of Ti and Ni metals as substrates for water electrolysis systems. To make optimization between the candidate electrodes, seven configurations of Ni-Ti, Ti-Ti, and Ti-Ni with three KOH solutions of 10, 20, and 30 % wt (weight KOH gm/weight water gm) as an electrolyte were conducted as a cathode-anode system. The selected electrodes were examined by scanning electron microscopy (SEM) and energy dispersive (EDX) to study their surface morphology and element composition. According to experimental findings, when the cell voltage of 5 V is applied, the hydrogen production from the Ti-Ti (20%KOH) and Ni-Ti (20% and 30% KOH) electrodes reach an optimal value of 6331 cm3, which is significantly higher than the hydrogen production from the other electrodes at the same voltage. The Ni-Ti electrode with a 10% KOH content had the maximum efficiency (72%), and the Ni-Ti electrode with a 30% KOH content had the lowest efficiency (61%), both at 3V for the cell. This study demonstrates that the Ni-Ti system can be the most suitable source for hydrogen evolution rather than the other arrangements when the appropriate mixing ratio of 20 % KOH solution is prepared before the electrolysis process.

Suppose that Q(λ)=λ^m A_m+λ^(m-1) A_(m-1)+⋯+A_0 is a polynomial matrix operator where A_i∈M_n (C) for i=0,1,…,m, are n×n complex matrix and let λ be a complex variable. For an n×n Hermitian matrix S, we define the V-numerical range of polynomial matrix of Q(λ) asV_S (Q(λ))={ λ∈C; ⟨Q(λ)x,x⟩=0,"for some" x∈C^n,⟨x,x⟩_S≠0 }, where ⟨x,y⟩_S=y^* Sx. In this paper we study V_S (Q(λ)) and our emphasis is on the geometrical properties of V_S (Q(λ)). We consider the location of V_S (Q(λ)) in the complex plane and a theorem concerning the boundary of V_S (Q(λ)) is also obtained. Possible generalazations of our results including their extensions to bounded linerar operators on an infinite dimensional Hilbert space are described

Diabetes mellitus is also called gestational diabetes when a woman has high blood sugar while she is pregnant. It can show up at any time during pregnancy and cause problems for the mother and baby during or after the pregnancy. If the risks are found and dealt with as soon as possible, there is a chance that they can be reduced. The healthcare system is one of the many parts of our daily lives that are being rethought thanks to the creation of intelligent systems by machine learning algorithms. In this article, a hybrid prediction model is suggested as a way to find out if a woman has gestational diabetes. In the recommended model, the amount of data is reduce by using the K-means clustering method. Predictions are made using a number of classification methods, such as decision tree, random forests, SVM, KNN, logistic regression, and naive bayes. The results show that accuracy goes up when clustering and classification are used together.

Two of the most well-liked neural network frameworks, Theano and TensorFlow, will be compared in this study for how well they perform on a given problem. The MNIST database will be used for this specific problem, which is the recognition of handwritten digits from one to nine. It is a good idea to use more examples than contrasted ones to compare these frameworks because this database is the subject of active research at the moment and has produced excellent results. However, in order to be trained and deliver accurate results, neural networks need a sizeable amount of sample data, as will be covered in more detail later. Because of this, big data experts frequently encounter problems of this nature. As the project description implies, we won't just present a standard comparison because of this; instead, we'll work to present a comparison of these networks' performance in a Big Data environment using distributed computing. The FMNIST or Fashion MNIST database and CIFAR10 will also be tested (using the same neural network design), extending the scope of the comparison beyond MNIST. The same code will be used with the same structure thanks to the use of a higher-level library called Keras, which makes use of the aforementioned support (in our case, Theano or TensorFlow). There has been a surge in open-source parallel GPU implementation research and development as a result of the high computational cost of training CNNs on large data sets. However, there aren't many studies that have been done to assess the performance traits of those implementations. In this study, we compare these implementations carefully across a wide range of parameter configurations, look into potential performance bottlenecks, and pinpoint a number of areas that could use more fine-tuning.

In order to get rid of or reduce the abnormal values of some phenomena that may be the reason for not obtaining the desired results. This makes us to get conclusions far from reality for the phenomenon we are studying. That the traditional nonparametric estimators are very sensitive to anomalous values, which prompted us to use the fortified estimators because they are not much affected by the anomalous values, as well as the nonparametric regression because it does not depend on the previous determinants or assumptions, but it depends directly and fundamentally on the data.

The current deals with new Three classes of almost Kahler manifold W2 of Concircular curvature tensor are Calculating differential geometrical but also topological parameters appropriate for new classes V ̅1, V ̅2, and V ̅3, are the focus of the paper. Through it, an equivalence relationship was obtained between these classes and one of or more the Tensor compound in the adjoint G-structure space and then construct a relation between this new classes.