Tikrit Journal of Pure Science

The aim of the study is to determine the effect of oral supplement of L-Arginine on semen parameters as a treatment for infertile men. Patients and methods: The study conducted on 15 infertile men at infertility clinic in SalahadDin general hospital and private clinics and laboratories in Tikrit city from beginning of March to the end of July 2018. Infertility is a common clinical problem affecting 13-15% of couples worldwide. The prevalence varies throughout developed and undeveloped countries, being higher in the latter in which limited resources for diagnosis and treatment exist. L-arginine was given daily and orally at a dose 1000 mg one capsule per day morning after breakfast.
Results: There was a significant increase in total sperm count after treatment with L- Arginine as compare with that before treatment. Also there was significant elevation active motility and Ejaculate volume after treatment with L- Arginine, as compare with that before treatment. However, there are significant reductions in Sluggish motility, abnormal sperm shape and non-motile sperms after treatment with L-Arginine as compare with that before treatment.

The cross sectional study was determined the efficaciousness of healing from oriental sore by intraregional injection of metronidazole with applying acetylsalicylic acid pads. The study was performed on 85 patients in age between 2-18 years (forty males and forty five females) in Tikrit city from March 2016 until August 2018, The cure rate was 77.64%.
The study showed the marked improvement the lesions. Scaring was minimal or absent following healing of treated lesions. The only side effect of treatment result localized pain and sometime reaction at web site of injection.
The study showed that the highest cure rate at age 6-10 years was 85% and at the age of 11 - 18 years the cure rate was 80% and at the age of 2-5 years, the cure rate was 66.6%.
This study was recorded the analysis of the healing from lesion in cutaneous leishmaniasis following administration of intraregional injection of metronidazole solution with applying acetylsalicylic acid pads is significant.
The aim of the current study has evaluated the efficaciousness of intraregional metronidazole injection with acetylsalicylic acid locally for healing of lesion from oriental sore.

Seven new complexes [Hg(1-ptt)2](1), [Hg(1-ptt)2(dppm)](2), [Hg(1-ptt)2(dppe)](3), [Hg(1-ptt)2(dppp)](4), [Hg(1-ptt)2(dppb)](5), [Hg(1-ptt)2(dppf)] (6), and [Hg(1-ptt)2(PPh3)2] (7) have been synthesized and characterized. The reaction of two moles equivalent of 1-Phenyl-1H-tetrazole-5-thiol (Hptt) with one mole equivalent of Hg(oAc)2.xH2O in ethanol solution afford [Hg(1-ptt)2] (1). Treatment of (1) with one mole equivalent of diphos (diphos : dppm, dppe, dppp, dppb, dppf) or two moles equivalent of PPh3 afforded a complexes of the types [Hg(1-ptt)2(diphos)] (2-6) or [Hg(1-ptt)2(PPh3)2] (7). The prepared complexes have been characterized by CHNS elemental analyses, molar conductivity, IR and NMR (1H, 13C and 31P) spectroscopy. In all complexes, the ptt- ligand is bonded through the sulfur atom of deprotonated thiol group, whereas the diphosphine ligands bonded as bidentate chelating and PPh3 bonded as a monodentate, to afford a tetrahedral geometry around the Hg+2 ion.

This study was conducted on 40 Samples of Patients with polycystic ovary syndrome (PCOS) after their diagnosis, The study aimed to identify the most important hormonal disorders associated with this syndrome . The study begins from Octobar 2017 to March 2018 , the age from(19-45) years .Blood samples were taken during the (2-4( days of menstrual cycle and the selected samples were compared with 20 healthy women as control group ,and the following hormones were evaluated Luteninzing hormone (LH), Follicle Stimulating Hormone (FSH), Prolactin (PRL),Testosterone (Testo) and Oxytocin (OX) ,the study showed a high significant in the concentrations of OX ,Testo and LH (P≤0.01) , a high significant in the PRL concentration (P≤0.05) and a high significant in the FSH concentration (P≤0.05(,the results were distributed to three groups according to BMI ,age and treatment, in term BMI it was divided into three groups, BMI(18.5-24.9)(25.0-29.9) (≥30)kg/m2 the results showed a high significant (P≤0.05) in the LH and OX concentration in group BMI (18.5-24.9)kg/m2 and in both PRL and Testo in group BMI(≥30)kg/m2. in term age, it was divided into three groups (19-26) (27-35) (36-45)years, the results showed a high significant (P≤0.05) in LH and Testo concentration at age group (36-45)years ,compared to other groups, and a high significant (P≤0.05) in both PRL and OX, between three group of age , treatment it was divided into three groups of metformin, progesterone contraceptive used and non-used of the treatment .the results showed a high significant (P≤0.05) in LH, PRL, OX and Testo concentrations, and a high significant (P≤0.05) of FSH in women treated compared with non-used

The present study aims to estimate heavy metals (Cadmium, Lead, Copper, Zinc and Iron) by different analytical methods in local and imported fish products such as the following samples: (White tuna meat small pieces) Thailand produce, (Sardines with vegetable oil pepper, slices without heads) produced by Morocco, (Fish fillet without bones) Vietnam production (live Carp fish from ponds and live Carp fish from the Tigris River) Iraq production, and (Tuna cut small) Turkey production, The concentrations of above-mentioned elements in the target samples were determined by the flame atomic absorption device . Concentrations of heavy metals were estimated at (ppm) as follows : Cadmium values (0.48 - 2.05 ppm) , While Lead values (0.66- 2.90 ppm), The values of Zinc (2.99 - 19.14 ppm) , Copper values (0.15 - 2.66 ppm) , The values of Iron (15.47-3.28 ppm), The results showed that the best method of extraction was the method of digestion which showed better results than the other two methods (ultrasound method and Ashing method). The results showed that the levels of Cadmium and Copper in some products are higher than the limits allowed by the World Health Organization (WHO) and World Food Organization (FAO) while the values of Lead, Iron and Zinc were within the limits allowed .

This study was conducted on 40 Samples of Patients with polycystic ovary syndrome (PCOS) after their diagnosis, The study aimed to identify the most important hormonal disorders associated with this syndrome . The study begins from Octobar 2017 to March 2018 , the age from(19-45) years .Blood samples were taken during the (2-4( days of menstrual cycle and the selected samples were compared with 20 healthy women as control group ,and the following hormones were evaluated Luteninzing hormone (LH), Follicle Stimulating Hormone (FSH), Prolactin (PRL),Testosterone (Testo) and Oxytocin (OX) ,the study showed a high significant in the concentrations of OX ,Testo and LH (P≤0.01) , a high significant in the PRL concentration (P≤0.05) and a high significant in the FSH concentration (P≤0.05(,the results were distributed to three groups according to BMI ,age and treatment, in term BMI it was divided into three groups, BMI(18.5-24.9)(25.0-29.9) (≥30)kg/m2 the results showed a high significant (P≤0.05) in the LH and OX concentration in group BMI (18.5-24.9)kg/m2 and in both PRL and Testo in group BMI(≥30)kg/m2. in term age, it was divided into three groups (19-26) (27-35) (36-45)years, the results showed a high significant (P≤0.05) in LH and Testo concentration at age group (36-45)years ,compared to other groups, and a high significant (P≤0.05) in both PRL and OX, between three group of age , treatment it was divided into three groups of metformin, progesterone contraceptive used and non-used of the treatment .the results showed a high significant (P≤0.05) in LH, PRL, OX and Testo concentrations, and a high significant (P≤0.05) of FSH in women treated compared with non-used .

A new complex of the type [Hg(2-Saln)2] (1) was prepared from the reaction of mercury acetate and salicylanilide (HSaln) in (1:2) molar ratio EtOH as a solvent with presence an Et3N as a base. Treatment of complex (1) with diphosphine {where diphos: dppe, dppp, dppb dppf and dppmS2} in 1:1) (complex: diphos) molar ratio afforded a complexes of the types [Hg(1-Saln)2(diphos)] (2-6),where as a complexes of the types [Hg(1-Saln)2(phos)2] (7,8) when treatment of complex(1) with two moles of monophosphine (PPh3 or SPPh3). The prepared complexes were fully characterization by many technical such as elemental analysis, molar conductivity, infrared spectroscopy, and nuclear magnetic resonance (1H and 31P). In complex (1) the (Saln-) was bonded as bidentate chelating ligand through the oxygen atoms of the carbonyl and deprotonated hydroxyl group, whereas bonded as monodentate ligand through the oxygen atom of deprotonated hydroxyl group in all other complexes (2-8). The geometry of the complexes (1-8) is a tetrahedral around the mercury (II) ion.

Four sites with different depth in AL-Fursan area/ North Tikrit city were selected for recent deposits sampling. The geotechnical properties of soil were tested and improvement of engineering properties of soil by cement was carried out. The geotechnical properties test results revealed that the moisture content ranges between (0.53 -1.45)% which is low because of sampling in summer season, while the grain size analysis show that the soil at the study area is coarse soil (sand) with fines. The soil type in the first site is clayey sand (SC), the second site contains sand with equal percentage of silt and clay (SC- SM) , the third and fourth site types are silty sand (SM). The specific gravity ranges between (2.46- 2.72) sites (1,2,3) are low liquid limit and low swelling index but the fourth site is moderate. The value of cohesion strength for the four sites are (16, 13, 1, 8)kPa respectively, sites (1) and (2) are moderate cohesion while sites (3) and (4) are non-cohesion, none plastic and un active.
The low values of cohesion strength belongs to high percentage of coarse particles in the area. The values of internal friction angles ranges between (300- 370). The consolidation test results revealed that all sites were moderate compressive index except the first site which is low compressive and low swelling. The study area soil are neutral and high content of gypsum and soluble Dissolved salts and also high organic content. The soil improvement by cement tests results show increasing of cohesion and internal friction angle and the compaction test results show the samples are well sorted.

The lithologic and petrographic studies of the Mishrif and Kifil formations in Amara oil field in wells AM11,AM9, AM5 was revealed that the Mishrif formation consists of limestone and dolomitic limestone. While the Kifil formation is consist of the anhydrite and mud-dominated limestone.
The skeletal grains of Mishrif formation includes variety of benthos foraminifera, bivalves (Rudist) ,corals , stromatolite, algae, ostracods, gastropods, echinoderms. Non-skeletal grains are rare and authegenic minerals of pyrite and iron oxide are present. The rocks of the formation are affected by diagenesis such as dolomitization ,dissolution and recrystallization. The Kifil formation rocks do not have any skeletal grains and affected by recrystallization only .
The microfacies analysis of Mishrif formation reveals that the formation consists of: mudstone, wackestone, packstone, grainstone and boundstone deposed in the fore environments extend from for reef, back reef to: open marine, reef, shoals platform margin, restricted environment. The Kifil formation divided into tow lithological facies these are limestone and evaporite and we recognized mudstone microfacies only deposited in restricted environment and represents the Mishrif reservoir cap rocks .
The research illustrated that the upper contact of Mishrif formation is gradational and conformable with Kifl formation with evidence from a gradual changes from limestone to anhydrite. In this study was considered the evaporites and limestone to Kifil formation. The Kifil formation is presence by thickness (7m) in the Amara Oilfield .

This research has investigated the quality of surface water at Baiji district of Salah Alden governorate based on 5 sampling stations for two season (September 2012 and April 2013). Water evaluation indices (i.e. heavy metal pollution index (HPI), heavy metal evaluation index (HEI) and contamination degree index (Cd)) are utilized to characterize the quality of water in term of drinking purposes. All values of HPI were lower than (15), suggesting low heavy metal pollution. The values of HEI were also less than (10), indicating low heavy metal pollution, whereas Cd values were much less than (1) for all stations, indicating low heavy metal pollution. Consequently, Tigris River water in the study area is suitable for drinking purposes in terms of heavy metal pollution

In the present study experimental measurements have been carried out to investigate the variation of air discharge voltage (V) and current (I) as a function of working pressure (p), in the ranges (300-500 V), (2-15 mA) and (0.09-0.13 Torr) respectively. Two thick, flat and circular electrodes of radius (4 cm) of Aluminum with a Pyrex cylinder tube of length (10 cm) and radius (3.5 cm) were used to generate the air glow discharge modes. The (V-p) characteristics have shown that an increasing in the discharge voltage of normal mode and reduction in that of abnormal mode with increasing the working pressure. It also displayed that the range of upper voltage from breakdown to abnormal glow has a minimum value (15.7 V) at (0.117 Torr). In addition to that, it is found that the (I-V) characteristics of air glow discharge modes are consistent with those reported in the literature for other gases, as argon, hydrogen and oxygen. It is expected that these observations can help to reduce the voltage needed to get an intense abnormal glow discharge in the air, and to understand well the behavior of two modes of glow discharge, that is important in various applications.

In this study, ZnS: Mn thin films prepared by RF magnetron sputtering technique, were mixed 20 g of ZnS with Mn (2%), and deposited on glass substrate at temperature of 100oC with different thickness (404, 775, and 900) nm. The prepared films were investigated by X-ray diffraction (XRD), atomic force microscopic(AFM), scanning electronic microscopic (SEM), and UV-VIS spectrophotometer. XRD results shows that the films have single crystallization nature with cubic crystal structure (Zinc blende) and strong peaks at (111) as highly preferential orientation. SEM and AFM analysis indicates that the diameter of particles were found to be nanometer, it ranged up to 29.55nm, 89.42nm at thickness (900nm) respectively. The results of UV-Vis spectrophotometry show that the transparency of films with different thickness was found to be around 53.43-86.63% in visible range. The band gap energies are calculated to be between 3.20-3.70 eV.

In this study Sunspot number(SSN) and Total solar irradiance(TSI wm^(-2)) observation were extracted from the Solar Influences Data analysis Center (SIDC) and Earth Radiation Budget Satellite (ERBS) for solar cycles 22,23 and 24 (1988-2017) and for the same cycles the parameters of climate were taken from the meteorological data recorded in Kirkuk station, which includes annual relative humidity(RH%),annual air temperature (cº)(T), annual Rainfall (mm)(p), and annual Sunshine duration(h/day)(SH).The statistical correlation between the adopted solar and climate parameters has been achieved by using Statistical program (SPSS) version (23). From this statistical analysis shows that there is a correlation between SH with both (SSN) and (TSI) less than 0.5 that is mean (SSN) and (TSI) have little effect on SH while the correlation is weak or missing between both (SSN) and solar (TSI) with RH% through the correlation coefficient values (0.05,0.032). The effect of (TSI) on the air temperature more than the impact of (SSN) but less than 0.5. The effect of (SSN) more than (TSI) on the amount of rainfall less than 0.5 according to the correlation coefficient value .this investigation shows that the climate in Kirkuk is clearly influenced by solar activity which includes SSN and TSI.

In this study, Structural and Optical Properties of titanium dioxide thin films are studied, TiO2 (Anatase) thin films were prepared by screen printing (SP) method. X-ray diffraction analysis showed that the structure of TiO2 films are polycrystalline and the lattice system is tetragonal. The main diffraction peak of TiO2 was (101) at 2θ=25ᵒ. The data of optical absorption indicated that TiO2 thin films prepared by SP have a direct optical band gap (about 3.1eV). The data of reflectivity was also used to calculate the band gap and was around 2.95 eV

The study focuses on α–almost similar operator which is a new concept of the operator theory and also some basic concepts related to the concept α–almost similar.
The study also defines a new concept called β–operator which is an expansion of the concept θ–operator and the relationship of this concept with the α–almost similar.
At the end of this research, we study some important relationships among similar, unitarily equivalent, and almost similar on the one hand and α–almost similar on the other

The current paper modified method of conjugate gradient for solving problems of unconstrained optimization. The modified method convergence is achieved by assuming some hypotheses. The statistical results demonstrate that the modified method is efficient for solving problems of Unconstrained Nonlinear Optimization in comparison with methods FR and HS

This article deals with proposed nonlinear autoregressive model based on Burr X cumulative distribution function known as Burr X AR (p), we demonstrate stability conditions of the proposed model in terms of its parameters by using dynamical approach known as local linearization method to find stability conditions of a nonzero fixed point of the proposed model, in addition the study demonstrate stability condition of a limit cycle if Burr X AR (1) model have a limit cycle of period greater than one.

The objective of the current study is to find the best mathematical models to calculate the estimated value of the ionization for the physical compounds of semiconductors based on the energy gap throughout using some numerical analysis methods as the least squares method. The best of its branches obtained is a nonlinear method of the second degree, we compare the new result with other methods and we obtained our new method is more accurate and efficiency. Another side we using some regression analysis methods as the regression method. The best of its branches obtained is a nonlinear method of the quadratic regression model.

The study deals with the notion of an approximaitly primary submodules of unitary left R-module M over a commutative ring R with identity as a generalization of a primary submodules and approximaitly prime submodules, where a proper submodule N of an R-module M is called an approximaitly primary submodule of M, if whenever ay∈N, for a∈R, y∈M, implies that either y∈N+soc(M) or a^k M⊆N+soc(M) for some positive integer k of Z. Several characterizations, basic properties of this concept are given. On the other hand the relationships of this concept with some classes of modules are studied. Furthermore, the behavior of approximaitly primary submodule under R-homomorphism are discussed.

The purpose of this paper is to introduce a new class of completely normal spaces namely〖(α〗^(*'), 〖semi〗^(*')) completely normal space . The relationship between them was studied and we investigate some characterizations of them. At last we give more of examples to explain the subject and study the topological property and hereditary property of these types.

In recent years, there has been a growing and continuous demand for great (data rates) beyond existing wired and wireless networks. Radio-over-Fiber technology is considered as an efficient and practical solution for providing broadband wireless. In this paper, many techniques are used to implement a system that has the capability to provide a great bit rate, broadband bandwidth, and minimum cost. So Radio-over-Fiber technology was used to modulate the light with radio-signal and transmission the signals through an optical fiber cable. Wavelength-Division-Multiplexing technique was used to send many signals through the same link, and Subcarrier Multiplexing-Amplitude Shift keying as a modulation format. 2Gpbs separate on two channels was transmitted on Single-Mode Fiber. The average results obtained from our experience was as follows: maximum Q factor average = 4.9712925, minimum BER average = 3.63*10-7, total power average (dBm) = -51.1502, the OSNR average (dB) = 52.085 for channel_1. The results of channel_2 were: maximum Q factor average = 5.5901325, minimum BER average = 1.26*10-8, total power average (dBm) = -46.60135, the average of optical signal-to-noise ratio (dB) = 54.65. All the average result that has from our simulation was very good and acceptable. The simulation and performance test of our experience was done using Optisystem 7.0.