Tikrit Journal of Pure Science

Histopathological alterations histochemistry and Biochemical parameters were used to assess the toxicity of the commercial pesticide (cypermethrin) on the liver tissue of male albino rats. 48 rats were used in this study. Each set of six rats was separated into four groups in the acute experiment. The control group was subcutaneously injected with distilled water, while the other three were injected subcutaneously with the insecticide at different concentrations (0.050, 0.025, 0.10). At these different concentrations, acute toxicity was assessed. A)er 24 hours, the mortality rate and poisoning signs increased with the increase in the concentration of the pesticide. As for the subacute toxicity experiment, 4 groups were used in this experiment with 6 animals in each. a control group injected with distilled water only, and another group injected with 0.025 as a single daily dose for 10, 20, and 30 days, respectively. This pesticide In the three separate times, caused some histopathological and biochemical changes in the treated groups in liver tissues and some biochemical changes in liver function were recorded, including Alanine Transaminase(ALT), Aspartate Transaminase (AST), and the levels of protein were measured in the serum. The researchers determined that cypermethrin has acute and subacute toxic effects, which manifested as alterations in serum enzymes and histopathological abnormalities in liver tissue.

Acute myeloid leukemia is a second type of leukemia and has more effect on elder patients than adult. This research's objective was to measure the serum levels of ceruloplasmin (CP), ferritin (FR), vitamin B12 (VitB12), folic acid (FA), zinc (Zn), copper (Cu), and iron (Fe) in acute myeloid leukemic patients (AML) (before and after taking chemotherapy) and healthy control groups. In this study, about (160) blood samples (males and females) were collected from acute myeloid leukemic patients in Erbil’s Nanakali hospital and they were separated into four groups: Group 1 (G1) including (40) Apparently healthy control group, Group 2 (G2) include (40) acute myeloid leukemic patients before taking chemotherapy (new cases), Group 3 (G3) include (40) acute myeloid leukemia patients taking chemotherapy for one cycle, and Group 4 (G4) include (40) acute myeloid leukemic patients with taking chemotherapy for more than one cycle. The outcomes display a significant increase in serum concentration of ceruloplasmin, ferritin, vitamin B12, and iron in all patient groups when compared with control groups. While the serum concentration of folic acid, zinc, and copper decreased in all patient groups when compared with the healthy control group. In addition, the correlation analysis displays that there was a significant positive correlation between ceruloplasmin with ferritin, vitamin B12, and iron, on another hand have a non-significant negative correlation between ceruloplasmin with folic acid, zinc, and copper. According to the present study, there was a direct correlation between AML patients with the serum levels of CP, FR, VitB12, FA, Zn, Cu, and Fe. A high area under the curve of our data suggests that testing for (CP, FR, VitB12, FA, Cu, and Fe) could be helpful to detect AML. However, zinc is not a good biomarker for detecting AML patients.

In early 2022, After the COVID-19 pandemic, many universities around the world, especially Iraqi universities, continued offering online courses based on a blended learning approach that supporting by traditional learning. The growing demand and popularity of mixed-learning models in higher education has made them a widespread educational phenomenon. However, most of the literature focus on blended learning design techniques only without considering interrelated key components for user needs and how to design blended learning based on user interaction (UI), user experience (UX), and different cultures and languages of learners. Therefore, this research aims to the evaluation of BL at Tikrit University based on the needs, and interactions of students in the learning process. Therefore, This study is an experimental study based on questionnaires distributed to 180 students from different colleges at Tikrit University. Finally, the results show that learning and acquiring skills and knowledge through BL is preferable to learning through traditional classrooms.

Nearly every element of life is being significantly impacted by the COVID-19 pandemic. Since COVID-19 was just recently identified, there isn't much known about the illness, how to identify it, or how to treat it. This has increased interest in the creation of AI-based automated detection systems, and deep learning is a group of machine learning algorithms used in AI that aim to automatically extract key properties from a dataset. Based on their architecture and learning principles, these neural networks are classified into a number of groups. Artificial neural networks (ANN), recurrent neural networks (RNN), and convolutional neural networks (CNN) are a few of the popular deep learning categories. Deep learning is therefore a powerful tool that could be used to classify data in ways that humans might not be able to. This makes it possible for computers to learn from modest quantities of data and provide excellent outcomes. For the first task in this investigation, multiple Convolutional neural networks (CNN) models were used.To maximize accuracy during training with maintain constant conditions. After training on x-ray images, VGG16, VGG19, and ResNet50V2, were found to ResNet50V2 have the highest accuracy (96%) and can be used in future chest x-ray studies and applications. Second, we designed a COVID-19 Diagnostic application. This app uses a chest x-ray to determine if a person has the disease or is healthy, saving medical staff time and energy and helping with preventative isolation. Test huge numbers from images in record time

Due to the security situation surrounding the Sipna area, there has been a rapid migration of the population to the Sipna area over the past fifteen years, which has increased agricultural activities as well as some small and medium factories. This has necessitated the evaluation of the water quality and its appropriateness for various uses in the Sipna area. The Sipna stream, which is part of the Greater Zab River, is located in the Sheladize area, 60 km to the northeast of Duhok City in the Iraqi Kurdistan Region. Between the low-flow season (12-October/2021) and the high-flow season (18-April/2022), forty surface water samples were taken by polyethylene bottle from both seasons. The study aims to assess the quality of surface water and the extent of the impact of human activities on the Sipna stream and the possibility of using it as a database for comparison in the future. The findings indicate that Ca-bicarbonate and TDS values range from 219-606 ppm with an average of 321 ppm for the dry season and 188-685 ppm with an average of 251 ppm for the wet season, it is the dominant water type in the study area. According to to mean values, the main ion concentrations for cations were Ca2+> Mg2+> Na+> K+, and HCO3-> SO42-> Cl-> NO3- anions. The most prevalent hydrochemical natural processes are rock weathering and its mainly responsible for the water quality in the study area. Water indices and comparisons to the WHO standard revealed that the Sipna stream\'s quality is suitable

Lost circulation, the loss of drilling fluid into holes or fractures throughout the geological formations being drilled, is the most expensive problem encountered in drilling operations for oil and gas wells. It is known that when there is a loss of circulation during the drilling process, the operation activities are delayed or stopped for curing or treatment, resulting in extra time known as non-productive time (NPT). The NPT issues during the drilling operations are the most important priorities for planning any drilling program. Therefore, the lost circulation is one of the main problems which can control the NPT. To mitigate the lost circulation problems, an integrated investigation is necessarily needed for the main parameters which enhance/downgrade the rate of lost circulation.
Drilling through the Dammam and Hartha formation is typically accompanied with substantial nonproductive time due to severe and often entire drilling fluid losses. The majority of the curing this problem require time for preparation, placement or setting. In this research, a field study was carried out to investigate the effect of 6 drilling parameters on the rate of the lost circulation. The investigated parameters are the rate of penetration, weight on bit, stand pipe pressure, mud weight, flow rate, and the equivalent circulation density. Furthermore, the effect of lithology type on the lost circulation rate was clearly determined and correlated. In addition, a graphical representation of bit depth vs the real drilling time/date was constructed to compare the lossy wells vs non-lossy wells named frithogram. This study was based on field data for 350 wells drilled in Rumaila Oilfield, southern Iraq. The results of this study showed that if these six operating parameters are standard and controlled, the significance of lost circulation problems could be reduced. However, the main factors which are responsible for the lost circulation problems are lithology types, facies and/or diagenesis process, which mainly distinguish the carbonate formations.

The goal of this article is to introduce a class of a type of meromorphic function which defined by some differential operators. Then we study various properties of these operators such as, coefficient inequality, both of growth and distortion theorems, radii of Star likeness and convexity of f(z) in the class that we present it.

Considering that finding the bounds for the coefficients of the Taylor-Maclaurin series expansion of bi-univalent functions is one of the important subjects in geometric function theory that has attracted the attention of many researchers in the last few decades, we also take a step in this direction. Finding such bounds is the main focus or, more clearly, the main problem of our work. In this article, we study the subclass H_∑ (n,γ,φ) of bi-univalent functions which is defined in the open unit disk D. Furthermore, we obtained the upper bounds estimates for the first coefficients |a_2 | and |a_3 | of the functions in this category by using subordination method. From the main result of the article (Theorem 2.1), special cases have been derived that improve some the results of previous articles.

In This Paper, We Solve The Sine – Gordon Equation by two Numerical Methods : Crank – Nicholson and Explicit and we discuss The Stabilities , and we obtained That The Stability Crank – Nicholson Methods is More Than The Stability Of Explicit Methods .

In this paper, we discussed some types of degrees on chains of fuzzy graphs. also introduced a new type of degree, which is called an average degree

Since optimization problems are getting more complicated, new ways to solve them must be thought of, or existing methods must be improofd. In this research, we expand the different parameters of the three-term conjugate gradient method to work out unconstrained optimization problems. Our new CG approach meets the conditions of sufficient descent, and global convergence. In addition, we describe some numerical results that imply comparisons to relevant methodologies in the existing researchkjkm literature.

This paper's primary objective is to present and study a different class of nano sets known as nano βθ-open sets in nano topological spaces. Additionally, introduced some nano topological concepts by using nano βθ-open set.

We define a new generalization of n-absorbing ideals in commutative rings called n-absorbing I-primary ideals. We investigate some characterizations and properties of such new generalization. If P is an n-absorbing I-primary ideal of R and √IP=I√P, then √P is a n-absorbing I-primary ideal of R. And if √P is an (n-1)-absorbing ideal of R such that √(I√P) ⊆IP, then P is an n-absorbing I-primary ideal of R

The induced plasma technique was used in the current investigation to create lead oxide nanoparticles from bulk structures at various bombardment periods (4,6,8,10) min. The process will be carried out in the presence of argon gas that flows at a constant rate (3 L/sec). These nanoparticles were created as thin layers on various thicknesses of glass substrates prepared at different times of shelling”. After that, they were analyzed with an x-ray spectrum, scanning electron microscope (SEM), atomic force microscope (AFM) and UV-visible spectrophotometer. Where the optical characteristics and constants were examined, the energy gap of the films varied with bombardment periods from 2.1 ~1.98eV. The SEM and AFM images clearly display a structure that varies with bombardment duration due to the fluctuation in the diameter of the nanoparticles. Finally, the layers' entire amorphous nature is revealed by the x-ray spectrum

One of the goals of current technology is to miniaturize electronic, operational, sensing and optical devices and their components. Thus, nanotechnology is an advanced technology favored by the scientific and industrial communities for its ability to exploit the unique properties of nanomaterials on a large scale. This study examined the polyaniline (PANI) solution with (ZnO) in different volume ratios through depositing (PANI: ZnO) on glass and silicon substrates. Alkalis were prepared and cleaned in a specific method and kept in tanks until they were used in a precipitation process using distillation casting techniques, which were carried out on silicon. The results showed that the as-prepared material has the characteristic of electrochemical performance. The synthesis test showed the consistency and compatibility among the materials used in the study with a maximum elapse time of (7.72 sec) and a maximum voltage of (0.203 V). The highest intensity for ZnO was at (36.3008°) with a Miller coefficient of (101) and for PANI was at (25°) with a Miller coefficient of (200). The X-ray diffraction results showed a successful matching procedure. When ZnO and PANI were mixed, the Miller coefficient (100) at (35o) angle provided the highest intensity. This proved that the materials used in the precipitation process were compatible. As for scanning electron microscopy, the results showed homogeneity and diffusion in the prepared material, where the grain volume decreased with the increase in ZnO. The best mixing ratio was (5:5) of (ZnO/PANI).