Iraqi Journal of Science

Bedsore (pressure ulcers)is a major nurse-careoutcome. There are many influences that can contribute to the progress of pressure ulcers, but the final common pathway to ulceration is tissue ischemia. This study aimed to detect some etiological factors that predispose to bedsore. The study was conducted on patients attending intensive care departments. Out of 82 inpatients who suffered from pressure ulcer, 54were males and 28were females. Specimens were collected during the period of September, 2019 –February, 2020 from different Hospitals (Alkadhimiya Teaching Hospital, General Hospital of AlshaheedAl-Sadr, and Medical City/ Ghazi Al-Hariri hospital) in Baghdad, Iraq. Simultaneously, other 20 specimens were collected as control frominpatientswho did not suffer from any skin lesion.The patients were categorizing according to the causative agent into 48 patients with chronic diseases (58.6%), 26 with accidental and surgical processes (31.7%), and 8 dehydrated cases (severe diarrhea) (9.7%). The demographic results showed that malesconstituted a percentage of 65.9% of patients, while 34.1% were females. The majority of the patients wereat an age range of 36-65 years. The study also revealed that smoking did not affect significantly bed sore development. In addition, most patients were under chronic disease, and diabetes mellitus incidence significantly varied among different age groups. The results of the microbiological study showed that the most prevalent microbial isolates followed the order Staphylococcus spp.>Enterobacteriaceae spp. > Fungi >Acinetobacter spp. > Bacillus spp. > Pseudomonas spp. and Streptococcus spp. >Corynobacterium. The resultsrevealed no significant differences in microbial distribution between patients and control group.

Iraqi western desert is characterized by a widespread karst phenomenon and caves. Euphrates formation (Lower Miocene) includes enormous sinkholes and cavities within carbonate rocks that usually cause severe damages to any kind of engineering facilities built over it. 3D resistivity imaging techniques were used in detecting this kind of cavities in complicated lithology. The 3D view was fulfilled by collating seven 2D imaging lines. The 2D imaging survey was carried out by Dipole-dipole array with (n) factor and electrode spacing (a) of 6 and 2m respectively. The horizontal slices of the 3D models give a good subsurface picture. There are many caves in all directions (x, y, z). They reveal many small caves near the surface. These caves are clearly shown as points with highly variable resistivity values in slices of depths 0.80 m, 1.72 m, 2.78 m, and 3.99 m. The comparison between standard Least-square and robust constrain methods appeared that the inverse model produced by the robust constrain method has sharper and straighter boundaries. The results of both the two-dimensional and the three-dimensional resistive imaging models deal with almost the same spread of subsurface caves in the study area and show a high amount in number, especially in the upper part, white in color oolitic limestone, the second member of Euphrates Formation, of 3.8-8m depth. 2D and 3D resistivity imaging values have Standard Roof-mean square (RMS) error for large inverted models, this confirms that the study area is of high inhomogeneity. This heterogeneity resulted in a large variation in the resistivity of the rock component in addition to the large spread of caves near the surface.

ooooglloetilhehT of Nahr Umr Formation was evaluated using the Acoustic Impedance (AI), Vp/Vs ratio toh osehi colored by petrophysical properties (Vsh, PHIT, PHIE,
and Sw) in Am-6-Am-10 wells. Bulk density is an important physical property that reflects matrix density and fluid density ilhi exist in rocks pores. It is used as o ill
main parameters to estimate physical characteristics (porosity, water saturation, shale volume, and others). AI was calculated using RHOB and VP logs. Shear velocity was calculated using Greenberg Castagna equations used for estimating oill
Vp/Vs ratiooand the result Showed that oillNahr Umr Formation ot composed of two main lithological units. The upper unit (depth 3540m -3672m) o t composed of limestone (limestone with low shale volume and low porosity high AI and limestone with high shale volume of high porosity and low AI), while the lower unit (depth 3672m-3740m composed of sandstone with ohhigh volume of shale have the lower AI value. The type of fluid was high water saturation in the carbonate part with low effective porosity and hydrocarbons existing in the sandstone part with lower acoustic impedance value.

Nannofossils and Ostracoda assemblages are diagnosed from fifteen samples of limestone, marls and, clay from Fat'ha Formation at Ba'shiqa anticline, Northeastern Iraq. The objective of this study is to determine the geologic age and paleoecology of this formation which is detailed investigation is carried out, during which twenty-four species of calcareous nannofossils identified, twenty- one is descried from other regions while three are left under an open name because of lack of material or insufficient samples. Besides, seventeen species of Ostracoda fossils were picked and diagnosed, including two subspecies, belonging to ten genera, and four subgenera.
The recorded calcareous nannofossil assemblages include two biozones which are from the lower to the upper part of the section: (1) Helicosphaera ampliaperta Interval Biozone (CNM6); (2) Discoaster signus Interval Biozone (CNM7). These biozones are correlated with other calcareous nannofossils biozones from both local and regional sections that lead to conclude the age of the Middle Miocene (Burdigalian to Laghian).
The paleoenvironment of the Fat'ha Formation was determined through the use of the environmental evidence of the Ostracoda fossils, which indicated oscillating periods which vary from normal salinity to brackish and saline environments, with the shallow lagoonal environment and sometimes deep lagoonal environment that do not exceed the margin of shelf zone.

In this paper, a modified three-step iteration algorithm for approximating a joint fixed point of non-expansive and contraction mapping is studied. Under appropriate conditions, several strong convergence theorems and Δ-convergence theorems are established in a complete CAT (0) space. a numerical example is introduced to show that this modified iteration algorithm is faster than other iteration algorithms. Finally, we prove that the modified iteration algorithm is stable. Therefore these results are extended and improved to a novel results that are stated by other researchers. Our results are also complement to many well-known theorems in the literature. This type of research can be played a vital role in computer programming, game theory and computational analysis.

In this paper, the solutions to class of robust non-linear semi-explicit descriptor control systems with matching condition via optimal control strategy are obtained. The optimal control strategy has been introduced and developed in the sense that, the optimal control solution is robust solution to the given non-linear uncertain semi-explicit descriptor control system. The necessary mathematical proofs and remarks as well as discussions are also discussed. The present approach is illustrated step-by-step by application example to show its effectiveness and efficiency to compensate the structure uncertainty in the given semi-explicit (descriptor) control system.

In this paper, new concepts of maximal and minimal regular – s are introduced and discussed. Some basic properties are obtained. The relation between maximal and minimal regular – s and some other types of open sets such as regular open sets and -open sets are investigated.

In this study, the concept of fuzzy α-topological vector space is introduced by using the concept fuzzy α-open set , some properties of fuzzy α-topological vector spaces are proved .We also show that the space is -space iff every singleton set is fuzzy α- closed .Finally, the convex property and its relation with the interior points are discussed.

Euphorbia lateriflora is a popular traditional medicinal plant whose leaves are used in Africa, especially Nigeria, to treat wounds and many diseases. This study investigated the preliminary phytochemical constituents, secondary metabolites by High-Performance Liquid Chromatography “HPLC” technique, and antimicrobial potentials (Minimum Inhibitory Concentration “MIC”, Minimum Fungicidal Concentration “MFC” and disc diffusion assay) of various concentrations (100 mg/mL, 50 mg/ml, and 25 mg/mL) of the solvents (ethyl acetate and n-hexane) extracts of E. lateriflora against Staphylococcus aureus, Escherichia coli and Candida albicans. The phytochemical screening revealed that out of the thirteen constituents screened for, n-hexane extract contained seven components, including flavonoids, coumarin, steroid, glycosides, triterpenes, terpenoids, and alkaloids. In contrast, the ethyl acetate extract contains saponin, flavonoids, coumarin, steroid, glycosides, triterpenes, terpenoids, and alkaloids. The HPLC chromatogram of n-Hexane and ethyl acetate extracts of E. lateriflora detected numerous unidentified compounds along with a potential antimicrobial compound identified as caffeic acid. The low MIC (6.25 - 50 mg/mL), shown by the n-hexane extract signified a greater antimicrobial activity than ethyl acetate extract. This was further implicated by the varying concentrations levels, rather than the strain-dependent zone of inhibitions obtained. The highest diameter of zone of inhibition (14.23 mm) was obtained at 100 mg/mL by n-hexane extract against E. coli and S. aureus, respectively, while the lowest zone of inhibition (6.00 mm) was obtained by n-hexane at 25 mg/mL concentrated tested against S. aureus. However, the diameter of the zone of inhibition of Ciprofloxacin (50 mg/mL) ranged between 10-16 mm for E. coli and 6-10 mm for S. aureus. At the same time, 14.00 mm was obtained by itraconazole (antifungal agent) against C. albicans. Thus, this study shows that E. lateriflora harbors active compounds and supports the claim that its extract may be effective against infections caused by the test organisms, as practiced for years among rural dwellers in Nigeria.

Labile plasma iron and tissue iron overload are major complications of thalassemia disease that increase mortality rate. The iron that is exceeding the capacity of transferrin and ferritin is the leading cause of cell oxidation of many organs such as liver, heart, endocrine systems, etc. This study is designed to investigate the status of liver, thyroid gland and the growth hormone in beta thalassemia patients. In a cross-sectional study, 65 samples of beta thalassemia major were taken who were on a regular chelation therapy and blood transfusion and were to be compared with reference values. The results of the study estimated that 98.46% of the cases had high serum ferritin level, 12.3% high ALT, 27.7% high AST, 86.15% high ALP, 69.23% high total serum bilirubin, and 36.92% high TSH level. The results revealed that more than half of the patients had Growth Hormone Deficiency (GHD). The serum ferritin was found to be correlated with ALT and AST enzymes (p< 0.01. Furthermore, alkaline phosphatase and serum bilirubin can be good markers for monitoring bile duct obstruction resulted from hemolysis and blood transfusion.

Bacillus subtilis, an isolate of bacillus genus, was obtained from the laboratories of Ministry of Science and Technology. The best efficient Bacillus subtilis isolate in cellulose and semi-cellulose hydrolysis was treated with Dielectric-barrier Discharge (DBD). Atmospheric cold plasma technique (non-thermal) was used by exposing them at different times (2, 3, 4 and 5 mins) separately as a first stage, and then 60 seconds after any treatment separately as a second stage. After 48 hours, the difference between the plasma source and the sample was fixed at 0.5 cm. The results showed a variation in the growth of the isolate according to the exposure time by the appearance of culture turbidity and the estimation of optical density. Positive results appeared between exposure times, the amount of optical density, and the cellulose and semi-cellulose decomposition into glucose. Bacillus subtilis increased its efficacy in cellulosic hydrolysis and semi-cellulosic materials. Bacillus subtilis showed malleability and the ability to increase the efficiency in cellulose and semi-cellulose materials hydrolysis. We conducted a new and extensive study by using cold plasma technique to increase the hydrolysis efficacy of food microorganisms.

Cutaneous leishmaniasis (CL) is an endemic parasitic disease found in many provinces of Iraq. The immune system plays a crucial role in the development or healing of lesions through chemotactic cytokine activity. This study was aimed to detect the levels of two chemokine ligands (CCL2 and CCL5) in Iraqi patients suffering from dermal ulcers, caused by cutaneous leishmaniasis. It was measured in pre and post-treatment state of Pentostam (Pentavalent Antimony 100 mg). Blood serum concentrations of CCL2, CCL5 were measured by enzyme-linked immunosorbent assay among newly infected patients, two-trial treatment patients and three-trial treatment patients, in comparison with the control group. The result indicated a significant difference in CCL5 level for the three groups of CL patients. Whereas the control (p˂0.5), CCL2 level counterparts showed a significant difference only in newly infected and the thee-trial treatment groups. Moreover, there was a significant difference between all CCL5 patient groups, while no observed difference was detected within patient groups of CCL2.Thus altering the chemokine levels before and after treatment gives insights for parasite role in chemokine expression which may help in new therapeutic approaches for dry or wet CL.

Zygnematales an order of green algae in Shaqlawa District Erbil, Kurdistan Region, Iraq, has been studied in eighteen sites, distributed between twelve springs and six along the streams within Shaqlawa district from September2019 to August2020. A total of 116 species belonging to 9 genera were identified. The most dominant genera included Spirogyra and Cosmarium (31, 30) taxa respectively. Out of them, 30 species were recorded for the first time in Iraq. Newly found genera included one species each for Cylindrocystis, Debarya, Hallasia and Staurastrum, nine species belonged to Mougeotia, three species returned to Closterium, and fourteen genera were related to Cosmarium .Growth of Zygnemataceae and Desmids increased in the summer than during the winter season. A brief description as well as the measurement is given for each species.

Leishmania is one of the protozoan parasites that are transferred to human by infected sand flies and gives rise to a range of diseases entitled as Leishmaniasis. More than 20 known species of Leishmania can infect humans and cause various clinical symptoms. Three most known clinical manifestations are Cutaneous Leishmaniasis (CL), Mucocutaneous Leishmaniasis (MCL) and Visceral Leishmaniasis (VL) (kala-azar or black fever). The difference in the clinical form dependent on several factors: species of Leishmania, type of vector that transmits the Leishmania, and the immune status of an infected individual. The current drugs which are used as anti-leishaminial treatment are characterized by enormous side effects, including their toxicity to human, long term treatment, liver problems and huge cost. Therefore, there is a necessity to find an alternative treatment marked as low cost, more specific against parasite’s stages, and metabolic pathways, and non-toxicity to human. Plants are considered one of the important sources for the remedy of the tropical diseases caused by bacteria, viruses, and parasites. Cymbopogon Citratus (lemon grass) is a herbal medicine used as anti-inflammatory, antibacterial, antifungal, anti-malarial, anti-protozoal and for gastrointestinal problems remedy. In order to detect the effects of C. Citratus against Leishmaniasis, in this study, serial dilution for the essential oil of C.citratus (1000, 500, 250, 125, 62.5 and 31.25) μg/ml were used against L. donovani Promastigotes. Viability was also evaluated at 24, 48 and 72 hours post-treatment. The results revealed that high concentrations (1000, 500 and 250) μg/ml were more effective than other concentrations during all time intervals, and IC50 values were 640, 492 and 442 μg/ml at 24, 48 and 72 hours respectively. In conclusion, this current study is one of a persistent search to find new treatments characterized by its high activity and low adverse effects to treat protozoa parasites for instance, Leishmania, and displays the effectiveness of the essential oils as a promising alternative

This study was conducted to evaluate the effects of Tharthar Arm on the composition and diversity of Rotifera in Tigris River. Six sampling sites were selected, two on Tharthar Arm and four along the Tigris River, one before the confluence as a control site and the others downstream of the confluence. Seventy-seven species of Rotifera were identified in Tigris, whereas, 60 in the arm. The results showed that low density of Rotifera in Tharthr Arm decreased the density in Tigris from 239812.4 Ind./m3 upstream of the confluence to 223315.5 Ind./m3 at immediate downstream of the confluence. It also declined the mean values of richness, evenness and Shannon diversity indices from 5.19, 0.69 and 2.14 bit/Ind., before the confluence to 3.97, 0.73 and 2.00 bit/Ind. below the confluence, respectively. Moreover, the highest similarity value was between sites 1 and 6 reached 83.27%, while the lowest value was between sites 1 and 2 recorded as 60.52%. For constancy index, the highest value was 14 in site 1 and the lowest was 8 in site 2.

Non-thermal plasma(Dielectric barrier discharge) has many uses including living tissue sterilization, inactivation of the bacteria, excimer formation, angiogenesis, and surface treatment. This research aim is to use cold plasma as a tool to search the effect of the dielectric barrier discharge system at room temperature on human sperm motility and DNA integrity. This work was performed on 60 human semen samples suffering from low motility; each sample was prepared by centrifugation method, then each semen sample was divided into two sections, the first section is before significant exposure to the plasma system (DBD) and the second section is after treatment with the DBD system at ambient temperature. Before and after exposure to non-thermal Plasma (DBD), DNA integrity and sperm motility were assessed, patients suffered from asthenospermia has a high level of DNA fragmentation than fertile male, ( 24.16±4.14) p<0.001 for untreated and after treatment the semen slide with dielectric barrier discharge the percentage decreases to (9.16±1.76) p>0.006, and the comet slide was (35.44±4.15) then the percentage decline to (19.86 ±2.44) these results have shown that cold plasma improves sperm motility and decreases from DNA damage in patients with medium and high level of DNA damage.

This study aimed to determine the effects of age, gender, and allergen type on serum immunoglobulin E (IgE) levels in asthma (AS) and allergic rhinitis (AR) patients. Sixty AS patients, 52 AR patients, and 61 controls were enrolled in the study. Sera of participants were assessed for total IgE level and specific IgE antibody against four allergen types (animal dander, grasses, mites, and molds). The results revealed that median level of total IgE was significantly increased in AS (218.9 IU/mL; p-value < 0.001) and AR (244.3 IU/mL; p-value < 0.001) patients compared to controls (167.1 IU/mL), while, there was no significant difference between AS and AR patients (p-value = 0.270). Logistic regression analysis demonstrated that the increased level of IgE was associated with an increased risk of AS (Odds ratio = 96.93) and AR (Odds ratio = 66.37). Receiver operating characteristic (ROC) curve analysis confirmed the predictive significance of IgE in AS and AR. The estimated area under the curve (AUC) for IgE in AS was 0.889 (p-value < 0.001), and at a cut-off value of 183.7 IU/mL, the sensitivity and specificity were 86.7 and 83.6%, respectively. Almost similar figures were estimated in AR, but the AUC was slightly lower (AUC = 0.873). The IgE level was not influenced by age groups (< 16, 16 – 40, and > 40 years) in AS patients or controls, while, it showed a significantly decreased level in the age group > 40 years of AR patients compared to the corresponding lower age groups (196.3 vs. 252.2 and 264.9 IU/mL, respectively). With respect to gender, the IgE levels showed no significant differences between males and females of patients or controls. For allergen type, mites were the most encountered allergen in age groups and males and females of AS and AR patients, and there were no significant differences between age or gender groups regarding the distribution of seropositive and seronegative patients. Further, the allergen type had no significant influence on the total IgE level. In conclusion, this study indicated the predictive significance of IgE in AS and AR. This significance was not influenced by age, gender, or allergen type.

In this study the as-deposited and heat treated at 423K of conductive blende graphene oxide (GO) / poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) thin films was prepared with different PEDOT:PSS concentration (0, 0.25, 0.5, 0.75 and 1.0)wt% on pre-cleaned glass substrate by spin coating technique. The energy dispersive X-ray Analysis (EDX) show the existence of higher amount of carbon and oxygen related to hydroxyl and carbonyl groups. X-ray diffraction (XRD) analysis of the as-deposited and annealed GO/PEDOT:PSS thin films blend indicated that the film prepared show broad peak around 8.24 corresponding to the (001) level refers to GO, this peak shifted to the lower 2θ with increasing PEDOT:PSS concentration. These results of Fourier transform infrared spectroscopy (FTIR) support the EDX measurement and confirm all the bonds of mixed compounds before and after annealing process. UV-visible spectra of the GO was registered for investigation the peak at ~ 224 nm along with the shoulder at ~ 260 nm. After blending ,there are a small shifts in the peaks locations toward the red shift wavelength with increase the concentrations of PEDOT:PSS, while after heat the peaks locations shift toward the blue shift wavelength.

We have designed, fabricated and studied the vertical axis wind turbine and its characterization. The system has been locally designed to pump water. It is considered as a one of the best options for low speed wind. The turbine has eight blades , each blade is 1.8m in length, and the area dimension of the turbine 3.6 m2 . were investigated the best characterization of the system at low wind speed are Power turbine depends on the wind speed. It was 280 Watt at 6m/s and 160 watt at 5m/s , and the power after the turbine decreasing to factor 1/3. The system torque was 20 N.m , Power coefficient cap 0.29 , Tip speed ratio 0.46. It is suitable to be used in Iraq region , and low cost for get the water, It is important to reduce desertification and increase investment.

Compounds from ZnO doped with AgO in different ratio (0,3,5,7, and 9)wt.% were prepared.Thin films from the prepared compounds were deposited on a glass substrate using the pulsed laser deposition method. The XRD pattern confirmed the presence of a single-phase hexagonal wurtzite ZnO structure, without the presence of a secondary phase. AFM measurements showed an increase in both average grain size and average surface roughness with increasing concentration content of (AgO).The crystallite size of ZnO of the main peak corresponding to the preferred plane of crystal growth named (100) increases from 17.8 to 22.5nm by increasing of AgO doping ratio from 0 to 9%. The absorbance and transmittance in the wavelength range (350-1100 nm) were used to determine the optical properties. The results showed that the optical energy gap for direct allowed transition (r =0.5 )are (3.21, 3.2,3.15, 3.15, 2.95 ) Ev, respectively. The optical constants were also measured as a function of wavelength. This optical measurements showed the prepared thin film have many applications for solar cell fabrication and sensing devices.

In this work, the optical emission characteristics of the ZnO plasma were presented. The plasma parameters: electron temperature (Te), electron density( ne), plasma frequency (fp) and Debye length (λD) were studied with a spectrometer that collects the spectrum ZnO plasma in air produced by Nd:YAG laser,(λ=1064 nm) at ratio X=0.5 in the range of energy of (700-1000 mJ), duration (10 ns). The Boltzmann plot methodwas employed to calculate the electron temperature (Te), while the Stark broadening was used to determine the electron density (ne), Debye duration (λD), and plasma frequency (fp). Te, ne, and fp were found to increase with the increase of laser energy.In contrast, (λD) decreased with laser energy increase. The resulting electron temperature calculation value was (1.908-2.084) eV.

In this paper, the effect of films thickness on the structural and optical properties of gold (Au) thin films prepared by the DC sputtering method was studied. At three different deposition times, three samples of gold thin films of three different thicknesses (200,400, and 600 nm) were prepared. X-ray diffraction patterns, scanning electron microscopy (SEM), and atomic force microscopy (AFM) images, as well as optical spectroscopy, were used to characterize thin films. The crystalline structure of gold thin films was determined by the XRD pattern which showed to be cubic phase and polycrystalline in nature. The preferred orientation was (111) at 2Ѳ equal 37.4. The effect of deposition time on the morphology of the deposited films was visualized with a scanning electron microscope (SEM) which showed a homogenous surface with nanoparticles with a diameter size of 50-100 nm. Changes in deposition time caused variations in roughness, thickness, and surface quality, as shown by AFM results. UV-Vis reflection spectroscopy was also used to investigate the optical properties of thin films.

This research aims to study the structural analysis of the 2D reflection seismic data for the Judaida subsurface structure located in Kirkuk province, northern Iraq. It is located 60 Km southwest of Kirkuk oil field, and 35 Km southwest of Jambur oil field, the Daquq River passes through the study area. The reflectors in the seismic section were picked and identified by using the synthetic seismograms generated from the logs data of the Jd-1 well. Three main seismic reflectors, Fatha, Jeribe, and the Euphrates were chosen. These mentioned sedimentary formations were deposited during the Middle Miocene, Lower Miocene, and Early-Mid Miocene respectively. Time and depth maps were drawn for these three reflectors by processing average data from Jd-1well. The structural interpretation results showed a structural closure on both time and depth domains in the middle of the study area. Judaida structure represented an asymmetrical longitudinal anticline fold. The Northeast limb has a dipping angle of 6-8 degrees more dip than the Southwest limb that has a dipping angle of 1-6 degrees, and the direction of the axis of the general structure is towards the Northwest-Southeast. The general dipping of the fold is toward the north east.

The study of the geochemical characterization of sandstone rocks contributes to understand the nature of the source rocks, their tectonic setting and the effects of paleoclimate and paleo-weathering. Accordingly, twenty sandstone samples from the red sandstone units of the Gercus Formation were collected from the northeastern limb of Safin Anticline at Shaqlawa Area – Northern Iraq. The studied sandstone samples show depletion in major, trace elements contents, except for CaO, MgO and Ni, Co and Cr respectively, and general depletion in the rare earth elements (REE) contents. Major element geochemistry indicates that the red bed sandstones of the Gercus Formation are of an oceanic island arc (OIA) tectonic setting. On the other hand, the results revealed that the paleo-weathering of the source area of the Gercus Formation experienced intensive chemical weathering under humid and/or warm climate conditions. The maturity and paleoclimate conclusions of the studied samples suggest a low feldspar content and low values of K2O / Al2O3 ratio, which in turn resulted from the dominance of low grade metamorphic and sedimentary rock types in the source area.

Modern cities suffer from heavy metal pollution ot eud urban expansion and population increase. Heavy metals have a great impact on human health. The objective is to determine the contamination level of heavy metals Cr, Mn, Ni, Cu, Zn, As, Zr and Pb at industrial and residential in Hilla city. The mean concentration of Cr, Mn, Ni, Cu, Zn, As, Zr and Pb enrichment factors of the investigated industrial soils are 3.43, 0.74, 6.45, 3.95, 5.60, 3.44, 1.17 and 11.44, respectively. The means of Cr, Mn, Ni, Cu, Zn, As, Zr and Pb in residential soils are 3.30, 1.09, 11.40, 0.94, 2.08, 5.39, 0.9 and 3.6, respectively. The I-geo mean values of heavy elements in the industrial area may be ordered in the following: Mn> Pb> Ni> Zn> Cu> As> Cr> Zr. While in the residential area ordered Mn> Ni> As>Cr> Pb> Zn> Cu > Zr. Integrated Pollution Load Index categories results showed high contamination in industrial and residential areas. nid ehT sources of heavy elements pollution in the study area has been regarded as anthropogenic sources.

The purpose of this research paper is to present the second-order homogeneous complex differential equation ( ) , where ( ) ( ), which is defined on the certain complex domain depends on solution behavior. In order to demonstrate the relationship between the solution of the second-order of the complex differential equation and its coefficient of function, by studying the solution in certain cases: a meromorphic function, a coefficient of function, and if the solution is considered to be a transformation with another complex solution. In addition, the solution has been provided as a power series with some applications.

Nonlinear regression models are important tools for solving optimization problems. As traditional techniques would fail to reach satisfactory solutions for the parameter estimation problem. Hence, in this paper, the BAT algorithm to estimate the parameters of Nonlinear Regression models is used . The simulation study is considered to investigate the performance of the proposed algorithm with the maximum likelihood (MLE) and Least square (LS) methods. The results show that the Bat algorithm provides accurate estimation and it is satisfactory for the parameter estimation of the nonlinear regression models than MLE and LS methods depend on Mean Square error

Let be a commutative ring with identity , and be a unitary (left) R-module. A proper submodule of is said to be quasi- small prime submodule , if whenever with 〈 〉 and , then either or . In this paper ,we give a comprehensive study of quasi- small prime submodules

In this paper , certain subclass of harmonic multivalent function defined in the exterior of the unit disk by used generalize hypergeometric functions is introduced . In This study an attempting have been made to investigate several geometric properties such as coefficient property , growth bounds , extreme points , convolution property , and convex linear combination .

In this study, we present different methods of estimating fuzzy reliability of a two-parameter Rayleigh distribution via the maximum likelihood estimator, median first-order statistics estimator, quartile estimator, L-moment estimator, and mixed Thompson-type estimator. The mean-square error MSE as a measurement for comparing the considered methods using simulation through different values for the parameters and unalike sample sizes is used. The results of simulation show that the fuzziness values are better than the real values for all sample sizes, as well as the fuzzy reliability at the estimation of the Maximum likelihood Method, and Mixed Thompson Method perform better than the other methods in the sense of MSE, so that we recommend to use this type of estimation.

In this paper, we introduce the concepts of Large-lifting and Large-supplemented modules as a generalization of lifting and supplemented modules. We also give some results and properties of this new kind of modules.

Fractional calculus has paid much attention in recent years, because it plays an essential role in many fields of science and engineering, where the study of stability theory of fractional differential equations emerges to be very important. In this paper, the stability of fractional order ordinary differential equations will be studied and introduced the backstepping method. The Lyapunov function is easily found by this method. This method also gives a guarantee of stable solutions for the fractional order differential equations. Furthermore it gives asymptotically stable.

A food chain model in which the top predator growing logistically has been proposed and studied. Two types of Holling’s functional responses type IV and type II have been used in the first trophic level and second trophic level respectively, in addition to Leslie-Gower in the third level. The properties of the solution are discussed. Since the boundary dynamics are affecting the dynamical behavior of the whole dynamical system, the linearization technique is used to study the stability of the subsystem of the proposed model. The persistence conditions of the obtained subsystem of the food chain are established. Finally, the model is simulated numerically to understand the global dynamics of the food chain under study.

In this paper, the -caps are created by action of groups on the three-dimensional projective space over the Galois field of order eight. The types of -caps are also studied and determined either they form complete caps or not.

In this paper, the peristaltic flow under the impact of heat transfer, rotation and induced magnetic field of a two dimensional for the Bingham plastic fluid is discussed. The coupling among of momentum with rotational, energy and the induced magnetic field equations are achieved by the perturbation approximation method and the mathematica software to solve equations that are nonlinear partial differential equations. The fluid moves in an asymmetric channel, and assumption the long wavelength and low Reynolds number, approximation are used for deriving a solution of the flow. Expression of the axial velocity, temperature, pressure gradient, induced magnetic field, magnetic force, current density are developed the effect of rotation, a stress on the lower and upper channel and stream function. The quantities flow have been tested for variant parameters. The impact of the Bingham, Brinkman, Hartman and Grashof numbers are also tested for different values to indicate the effect on the move of flow fluid. The applications can be seen through many graphics.

The growth of social media is now utilized all over the world. In the past several years social media is used to communicate between person for information sharing and entertainment but now social media is also used for the hiring. This work collects data through questionnaire and online dataset on the recruitment process for three social media i.e. Facebook, Twitter, and LinkedIn. Pythagorean Fuzzy Relation (PFR) is an expansion of both Fuzzy Relationship and Fuzzy Intuitionist Relationship. The Pythagorean fuzzy set is a modern conceptual structure with greater capacity to deal with imprecision rooted in decision making. So we used this technique to identify a social media containing more number of positive respondents in recruitment process. Consequently, Facebook is proved to have high positive feedback and low negative feedback than others. It is observed that time management factor has high impact as it achieves 0.4583 composite range than others. It is also analyzed that abusive factor should be taken care by social media during recruitment as it occupies high range of negative i.e. 0.20519 composition than others

Palm vein recognition technology is a one of the most effective biometric technologies for personal identification. Palm acquisition techniques are either contact-based or contactless-based. The contactless-based palm vein system is considered more accurate and efficient when used in modern applications, but it may suffer from problems like pose variations and the delay in the matching process. This paper proposes a contactless-based identification system for palm vein that involves two main steps; First, the central region of the palm is cropped using fast extract region of interest algorithm, then the features are extracted and classified using altered structure of Residual Attention Network, which is a developed version of convolutional neural network that uses an attention mechanism. The altered structure is constructed by stacking multiple attention modules and pre-activation residual unit with additional down sampling layers in between. The proposed system was tested on contactless CASIA multispectral palm vein databases that contains palm images with obvious pose variations taken from 100 persons. The results show that our system has outperformed other state-of-the-art systems with 95.55% accuracy and fast identification process of 0.06 second per person.

The Indonesian language is used as a means of communication, including written communication. Unfortunately, many mistakes are found in Indonesian language writing, such as the writing of active verbs with the prefix mem- followed by the letter P. This problem can be addressed with the spell-checking method. Spell checking is a process in computer programs to check the spelling of each word in electronic text or documents in the correct order. To better the active verb this study used the Jaro-Winkler Distance algorithm. Meanwhile, for system development, the Iterative Waterfall method was used. The system output is active verbs of mem- + P which is standardized according to the Great Dictionary of the Indonesian Language of the Language Center (KBBI) and the morphological rules of the Indonesian Language Spelling System. The accuracy value of the algorithm was 80% for common mistakes, 95% for specific mistakes, and 80% for correctable mistakes with word suggestions.

Face detection is one of the important applications of biometric technology and image processing. Convolutional neural networks (CNN) have been successfully used with great results in the areas of image processing as well as pattern recognition. In the recent years, deep learning techniques specifically CNN techniques have achieved marvellous accuracy rates on face detection field. Therefore, this study provides a comprehensive analysis of face detection research and applications that use various CNN methods and algorithms. This paper presents ten of the most recent studies and illustrate the achieved performance of each method.

Applying 4K, (Ultra HD) Real-time video streaming via the internet network, with low bitrate and low latency, is the challenge this paper addresses. Compression technology and transfer links are the important elements that influence video quality. So, to deliver video over the internet or another fixed capacity medium, it is essential to compress the video to more controllable bitrates (customarily in the 1-20 Mbps range). In this study, the video quality is examined using the H.265/HEVC compression standard, and the relationship between quality of video and bitrate flow is investigated using various constant rate factors, GOP patterns, quantization parameters, RC-lookahead, and other types of video motion sequences. The ultra-high-definition video source is used, down sampled and encoded at multiple resolutions of (3480x2160), (1920x1080), (1280x720), (704x576), (352x288), and (176x144). To determine the best H265 feature configuration for each resolution experiments were conducted that resulted in a PSNR of 36 dB at the specified bitrate. The resolution is selected by delivery (encoder resource) based on the end-user application. While video streaming adapted to the available bandwidth is achieved via embedding a controller with MPEG DASH protocol at the client-side. Video streaming Adaptation methods allow the delivery of content that is encoded at different representations of video quality and bitrate and then dividing each representation into chunks of time. Through this paper, we propose to utilize HTTP/2 as a protocol to achieve low latency video streaming focusing on live streaming video avoiding the problem of HTTP/1.

The effects of land use/cover change are recognized as one of the challenges facing humans in the twenty-first century. In contrast to less developed regions, its characteristics are characterized by a variety of climatic conditions. The changes result in “Urban Heat Island”, in which the temperature in cities is higher than the temperature in the rest of the country. By monitoring the city of Baghdad for a short period, Baghdad's urbanization progressed quickly, which negatively affected the region’s climate through the decreasing of agricultural lands surrounding the area. Understanding the extent of effects on the environment is critical for long-term development. Climate change and environmental cleanup include making the right decisions and taking actions to reduce the detrimental impact of urbanization on both the urban population and ecosystems. As a result, we investigated the relationship between urbanization and relative humidity in Baghdad city, using remote sensing images and data downloaded from the European Center for Forecasting (ECMWF) for Baghdad city. By calculating several factors, such as relative humidity (RH), temperature (Ta), and evaporation, and confirming the changes observed in urban areas Landsat 5 and Landsat 8 images were processed and analyzed in the (ArcGIS 10.8) program for the years 2010 to 2020. The study proves that there is a clear association between growing urbanization and the relative humidity rate and how increase in building areas and the rate of increase in temperature rise in them. The purpose of this study is to assess the impact of relative humidity level on the microclimate of Baghdad city from 2010 to 2020, the built-up increased from 19.60% to 27.44%. While, NDVI calculation healthy vegetation has almost disappeared with its percentage going down from 0.05% to 0.00. This study compares the microclimates of two study areas: ancient and modern, both of which differ in terms of vegetation cover and urban distribution and is based on remote sensing data.