The structural, optical and electrical properties of ZnS films prepared by vacuum
evaporation technique on glass substrate at room temperature and treated at different
annealing temperatures (323, 373, 423)K of thickness (0.5)µm have been studied. The
structure of these films is determined by X-ray diffraction (XRD). The X-ray diffraction
studies show that the structure is polycrystalline with cubic structure, and there are strong
peaks at the direction (111).
The optical properties investigated which include the absorbance and transmittance
spectra, energy band gab, absorption coefficient, and other optical constants. The results
showed that films have direct optical transition. The optical band gab was
In this work we run simulation of gas dynamic problems to study the effects of Riemann
problems on the physical properties for this gas.
We studied a normal shock wave travels at a high speed through a medium (shock tube). This
would cause discontinuous change in the characteristics of the medium, such as rapid rise in
velocity, pressure, and density of the flow.
When a shock wave passes through the medium, the total energy is preserved but the energy
which can be extracted as work decreases and entropy increases.
The shock tube is initially divided into a driver and a driven section by a diaphragm. The
shock wave is created by increasing the pressure in the driver section until the diaphragm bursts,
se
Background:
the influence of permeability tensor upon drainage of anisotropic soils under ponded water and steady recharge (rainfall) is theoretically investigated. Tensorial permeability has led to the formulation of mixed type partial differential equations. Since there is no analytical solution to this problem, the formulation is therefore solved numerically by the method of finite elements. The finite element formulation is implemented into a computer model which can be applied to any problem of seepage under steady state
conditions. Two different example problems representing two different flow conditions under full anisotropy have been studied. Results of the model for the isotropic case were checked against exact mathematical solutions de
This paper deals with a central issue in the field of human communication and reveals the roaming monitoring of the incitement and hatred speech and violence in media, its language and its methods. In this paper, the researcher seeks to provide a scientific framework for the nature of the discourse of incitement, hatred speech, violence, and the role that media can play in solving conflicts with their different dimensions and in building community peace and preventing the emergence of conflicts among different parties and in different environments. In this paper, the following themes are discussed:
The root of the discourse of hatred and incitement
The nature and dimensions of the discourse of incitement and hatred speech
The n
Densities
ï² and viscosity
ï¨ of serine in 20, 40, and 60% (w/w) dimethyl sulfoxide (DMSO)-water mixtures were measured at 298.15, 303.15 and 308.15k. From these experimental data, apparent molal volume v ï¦ , limiting apparent molal volume v ï¦ o , the slop v S , transfer volume v ï¦ o(tr), Jones-Dole coefficients A and B were calculated. The results are
v ï¦ odiscussed the solute-solvent and solute-solute interaction, and showed that serine behaves as structure-breaker in aqueous DMSO solvent
To investigate the activity and role of certain enzyme markers in 30 patients female with breast cancer (non-treated, treated, and treatment with recovered).The serum activity of enzyme tumor markers (ALP, GPT and GOT) of (30) patients with breast cancer, and (7) healthy control subjects by using statistical analysis: There is significant difference higher in activity of serum enzyme tumor markers (ALP, GPT, and GOT) in all patients as compared with healthy control
Immuno-haematological genetic markers study was carried out to understand the genetic background variations among Kirkuk (Iraq) indigenous population. A cross-sectional study of 179 patients with thalassemia major was conducted in Kirkuk. A detailed review was undertaken to define the relationships between ethnic origins, phenotype and immuno-genetic markers uniformity in relation to genetic isolation and interethnic admixture. A total of 179 thalassemia major patients were subjected to analysis in the hereditary blood diseases centre, including (18(10.05 %)) of intermarriages between different ethnic groups origin, whereas the overall consanguinity marriage rate was estimated at (161 (89.9%)) including (63(35.1%)) for first cousi
... Show MoreIn this paper, the problem of scheduling jobs on one machine for a variety multicriteria
are considered to minimize total completion time and maximum late work. A set of n
independent jobs has to be scheduled on a single machine that is continuously available from
time zero onwards and that can handle no more than one job at a time. Job i,(i=1,…,n)
requires processing during a given positive uninterrupted time pi, and its due date d
i.
For the bicriteria problems, some algorithms are proposed to find efficient (Pareto)
solutions for simultaneous case. Also for the multicriteria problem we proposed general
algorithms which gives efficient solutions within the efficient range
شهد العالم مع بداية القرن الحادي والعشرين تدشين مرحلة جديدة من التطور شملت مختلف الميادين لاسيما في مجال التطورات العلمية والثورة المعلوماتية.. كما إن مسار الديمقراطية في بعض دول العالم يصبح سالكا خاصة في تركيا, فمنذ اواسط الثمانينيات من القرن الماضي فتح المجال السياسي امام قوى كانت مسحوقة ومهمشة, ويكاد ان لا يكون لها وجود في الحياة السياسية للنزول الى ساحة العمل السياسي اسوة ببقية القوى ا
... Show MoreThis research prepared polymer blend contains from epoxy resin (Ep) and polyurethane
)Pu) as a matrix material of percentage (90 %) from epoxy and ) 10 (% polyurethane and
reinforced by PVC fibers and aluminum fibers two dimension knitted mat with fractional
volume(15 %), and study impact strength before and after reinforcing at temperatures of
(20,40,60(
o
CØŒand the results have shown that the reinforcing matrix materials by fibers
increased impact strength values that rise from(3.387kJ/m2) to (151.62kJ/m2) of composite
material (Ep+Pu+PVC(and thus ) Ep+Pu+PVC+Al.F) at last (Ep+Pu+Al.F (. following
composite material so that temperatures increase led to rise impact strength values except the
polymer
Amaranthus viridis (green amaranth), is naturally grown in Iraq belongs to the Amaranthaceae family, and is considered pseudocereal. This herb displays various classes of secondary metabolites including polyphenols, and phytosterols, in addition to other types of terpenes and fatty derivatives. Anti-inflammatory, antioxidant, antidiabetic, cardioprotective, and hepatoprotective are among the evaluated and proven clinical activities. Recently herbal remedies have emerged as a noteworthy new therapeutic option for several cancers. The most common cause of cancer mortality in Iraq is lung cancer. Few previous studies stated the invitro anticancer effect of this herb on the MCF-7 breast cancer cell and against HepG2, B16F10 mela
... Show MoreCholestasis is defined as a reduction or stagnation in bile secretion and flow. Inflammation results from blocked bile that leaks into the bloodstream and accumulates in the organs. It was postulated that cilnidipine would mitigate the liver damage linked to cholestasis by its confirmed farnesoid x receptor (FXR) activation. Hence, this study aimed to examine the impact and potential anticholestatic capabilities of cilnidipine in the rat’s model of cholestasis produced by α‑naphthyl isothiocyanate (ANIT), which is a widely used model that resembles human cholestasis. The white albino rats used in this investigation were separated into three distinct groups, with eight in each group. Negative control (Group I), in this group, rats ge
... Show MoreCurcumin (CUR), an active constituent of turmeric which is capable of forming complexes with metal ions. Even though CUR metallocomplexes displayed better biological activities compared to the free CUR, their application in medicine is limited by their poor aqueous solubility. This research aimed to develop self-microemulsifying drug delivery systems (SMEDDSs) to improve the solubility and the antioxidative activity of CUR metallocomplexes. Mononuclear (1:1) CUR metallocomplexes (CUR-Cu, CUR-Mg and CUR-Fe) were synthesised with Cu2+, Mg2+ and Fe3+ salts. The CUR and CUR metallocomplexes were loaded into the microemulsions (MEs) which contains palm oil, Tween 80 and polyethylene glycol (PEG) 400 at the rat
... Show MoreBackground: Several risk managem-ent standards had been developed including the Project Management Institute, the National Institute of Standards and Technology, actuarial societies, and ISO standards.
Objective: The study aimed at evaluating risk management among managers of model and ordinary primary health care centers in Baghdad City and comparing the risk management among these centers.
Methods: A descriptive comparative des
... Show MoreIn this work, porous Silicon structures are formed with photochemical etching process of n-type Silicon(111) wafers of resistivity (0.02.cm) in hydrofluoric acid (HF) of concentration (39%wt) under light source of tungeston halogen lamp of (100 Watt) power. Samples were anodized in a solution of 39%HF and ethanol at 1:1 for 15 minutes. The samples were realized on n-type Si substrates Porous Silicon layers of 100m thickness and 30% of porousity. Frequency dependence of conductivity for Al/PSi/Si/Al sandwich form was studied. A frequency range of 102-106Hz was used allowing an accurate determination of the impedance components. Their electronic transport parameters were determined using complex impedance measurements. These measu
... Show MoreHibiscus tiliaceus L. is a member of the Malvaceae family. It has been documented to exhibit antibacterial, antioxidant, anti-inflammatory, expectorant, anthelmintic, and anticancer properties. The objective of this study was to assess the impact of ethanol leaf extract from Hibiscus tiliaceus L. on methotrexate-induced chromosomal aberrations, specifically the Mitotic Index and Micronucleus Frequency, in spleen and bone marrow cells.
The comparison was made with metformin. The study involves the categorization of the animals into five groups, with each group consisting of six rats. The rats are then subjected to the following treatments: Group I (negative control) consisted of six rats that were administered a
... Show MoreA series of conformationally constrained new Propionic acid derivatives were subjected to a synergistic integration of docking and quantitative structure-activity relationship (QSAR) techniques to optimize non-steroidal anti-inflammatory agents (NSAIDs). Examining the particular conditions for COX-2 inhibition selectivity among these congeners as selective cyclooxygenase-2 (COX-2) inhibitors was the aim of the study. The combination of these methodologies accelerates the identification and optimization of lead compounds, facilitating efficient prediction and screening of compound libraries. This integrated approach not only expedites drug discovery but also provides a rational foundation for the design
... Show MoreThe food web is a crucial conceptual tool for understanding the dynamics of energy transfer in an ecosystem, as well as the feeding relationships among species within a community. It also reveals species interactions and community structure. As a result, an ecological food web system with two predators competing for prey while experiencing fear was developed and studied. The properties of the solution of the system were determined, and all potential equilibrium points were identified. The dynamic behavior in their immediate surroundings was examined both locally and globally. The system’s persistence demands were calculated, and all conceivable forms of local bifurcations were investigated. With the aid of MATLAB, a numerical simu
... Show MoreRecent changes in the subfamily Pimeliinae (Coleoptera, Tenebrionida), including updates at the generic and species levels, are summarized till this study is completed . According to the previous literature and museum collections of the Iraq Natural History Research Center and Museum, a revised and current list of 18 recognized genera and 44 species, organized into 10 tribes, is provided for the fauna of Iraq. The importance of this study is that it is the first updated list for the Pimeliinae subfamily for the entomofauna of Iraq.
The study aims to update the records of endemic plant species within two phytogeographic sub-regions of Iraq, the Middle Saharo-Sindian and Mesopotamia regions. The update was conducted through a comprehensive review of scientific name validity, endemic status, and recently described species reported in previous studies, which collectively recorded 89 endemic taxa across these regions. The current results identify only 29 endemic taxa belonging to 22 genera and 15 families. The family Asteraceae and the genus Anthemis exhibited the highest number of endemic taxa. In terms of distribution, eight taxa were restricted to the Middle Saharo-Sindian region, thirteen to Mesopotamia, and eight were shared between both sub-regions. Additionally,
... Show MoreEndotoxic septic shock (ESS) is a serious clinical syndrome caused by gram-negative bacterial infections. ESS refers to infected patients with high bloodstream endotoxin levels and activity and a high rate of cardiovascular, pulmonary, hepatic, and renal failure. The endotoxin in the bacterial cell wall can evoke neutrophil monocytes and secrete inflammatory mediators like cytokines, nitric oxide, histamine, and bradykinin, causing local and systemic inflammation, severe vasodilation, endothelial dysfunction, increased capillary permeability, vascular fluid extravasation, and disseminated intravascular coagulation. Mice were utilized as experimental animals for research by inducing endotoxemia or a septic-like condition that closely simu
... Show MoreEsterification reaction is most important reaction in biodiesel production. In this study, oleic acid was used as a suggested feedstock to study and simulate production of biodiesel. Batch esterification of oleic acid was carried out at operating conditions; temperature from 40 to 70 °C, ethanol to oleic acid molar ratio from 1/1 to 6/1, H2SO4 as the catalyst 1 and 5% wt of oleic acid, reaction time up to 180 min. The optimum conditions for the esterification reaction were molar ratio of ethanol/oleic acid 6/1, 5%wt H2SO4 relative to oleic acid, 70 °C, 90 min and conversion of oleic 0.92. The activation energy for the suggested model was 26625 J/mole for forward reaction and 42189 J/mole for equilibrium constant. The obtained results s
... Show MoreReceive money laundering phenomenon of interest to researchers and scholars on different intellectual orientation of economic or political or other, as this process is gaining paramount importance in light of business and increase the number of banks in the province of Kurdistan of Iraq and Erbil in particular and in the presence of openness developments chaotic economic and there are no factors encourage money laundering operation because of the presence of the hidden economy and the weakness of the banking and legal measures to combat them, and on this basis there is a need to examine money laundering operation in the province of Arbil, to indicate the presence or absence of a money laundering operation in working in the provin
... Show Moreتغير النمط السائد لاختطاف الأطفال في العصر الحالي، ولم يعد يقتصر على الحدود المحلية للدول بل أخذ يتجه إلى منحى دولي، والاستخدام القانوني الأكثر دقة لاصطلاح الاختطاف الدولي للأطفال ينشأ في اتفاقية لاهاي المتعلقة بالجوانب المدنية لاختطاف الأطفال دولياً، والتي تنظر- وكما توحي إليه تسمية الاتفاقية - في حالات الاختطاف من وجهة نظر القانون الدولي الخاص، ليمثل جوهره نزاع مرير على حقوق الحضانة يتطور إلى حد اختطاف
... Show Moreالحماية القانونية للجينوم البشري هي قضية أخلاقية تتعلق بمستقبل الوجود البشري. بعد الكشف عن الخريطة الجينية البشرية، ازدادت الممارسات العلمية والبحوث المتعلقة بالجينوم البشري، وخاصة التطبيقات السلبية للهندسة الوراثية التي تنتهك حقوق الإنسان الأساسية، لا سيما الحق في كرامة الإنسان، وتشكل تحديات حقيقية لوجود وتنوع أجيال الحاضر والمستقبل. لذلك ، فإن وجود قواعد قانونية على المستويين الوطني والدولي ضرور
... Show MoreBreast cancer has got much attention in the recent years as it is a one of the complex diseases that can threaten people lives. It can be determined from the levels of secreted proteins in the blood. In this project, we developed a method of finding a threshold to classify the probability of being affected by it in a population based on the levels of the related proteins in relatively small case-control samples. We applied our method to simulated and real data. The results showed that the method we used was accurate in estimating the probability of being diseased in both simulation and real data. Moreover, we were able to calculate the sensitivity and specificity under the null hypothesis of our research question of being diseased o
... Show MoreDue to their variable and intermittent nature, the integration of renewable energy sources poses control challenges related to voltage and frequency stability in isolated microgrids. This paper proposes an enhanced dynamic droop control strategy optimized in active time along with a Hybrid Energy Storage System (HESS) comprising Battery Energy Storage System (BESS), supercapacitors (SUPCA), and Superconducting Magnetic Energy Storage (SMES) to improve microgrid stability. The Dynamic Droop Gains (DDG) are continuously tuned using the rapid-converging SECANT numerical method to enhance transient response and steady-state performance, this was achieved using MATLAB/Simulink. The HESS combines the complementary characterist
... Show MoreIn this paper an investigation has been made into the effect of residual stresses on the vibration characteristics of a thin rectangular stainless steel plate with multi-line spot welded stiffeners. A new general frequency equation with and without the effect of residual stresses due to multi-line spot welding along the length and width of the plate for different boundary conditions were obtained. The results give that the free ends tries to increase the natural frequencies while the clamped edges try to decrease the natural frequencies; also the central position weld line has the great influence on the natural frequencies.
Background: Prolapsed intervertebral disc is an important and common cause of low backache. MRI has now become universally accepted investigation for prolapsed intervertebral disc. We, however, regularly come across situations, when MRI shows diffuse disc bulges, even at multiple levels, which cannot be correlated clinically and when such cases are operated, no significant disc prolapse is found resulting in negative exploration. Objective: To evaluate the role of M.R.I. finding not only for diagnosis of disc herniation at lumbar region but also for localization the level of herniation Methods: A prospective study on seventy five symptomatic low backache and MRI confirmed prolapsed intervertebral disc patients at lumbo-sacral region were op
... Show More