Four areas contain zinc - lead - barite deposits hosted by Cretaceous carbonate rocks are studied mineralogically, geochemically and genetically. These areas are Lefan, Lower Banik, Menin and Upper Banik, which are located northeast of Zakho city within Northern Thrust Zone, Northern Iraq.
The deposits occur as small veins, scattered patches to disseminated ore, characterized by simple mineralogy consists of sphalerite, galena, little quantity of pyrite as primary sulfides and barite as primary sulfate. Most of sulfides are altered to their secondary minerals by supergene solutions.
Paragenetic sequence of mineralization shows early and late sulfides generation deposited from hypogene solutions, and reveals reduction-oxidation

A computer simulation method was used to study the electrical pre-breakdown events in dielectric liquids. This study concentrated on the liquid-solid interface. The suitable model based on the cavitation theory. It was assumed that the streamer channels are weak plasmas and those channels have a high electrical resistance. The model was implemented numerically by finite element method (in two-dimensions). It was tested within a pin-plane configuration using the n-hexane and the water as dielectric liquids. Same voltage and electric field distributions were shown in the two liquids. But different distributions appeared when the solid insulator was introduced to the configuration. Also, the results show that, a strong dependence of the str

The total -n reaction cross section for radioactive fission products have been
evaluated in the region of energy near the giant dipole resonance, from the threshold
energy up to around 30 MeV. The selected fission products lay in the range of
medium mass number, namely: 87Rb, 90Sr, 93Zr, 106Ru, 123Sn, 127Te, 129I and 137Cs.
These radioactive isotopes were chosen as part of the radioactive waste from 235U
fission. Total cross section results were used to calculate the number of incinerated
nuclei, and this method shows efficiency in reducing the radioactivity of these
isotopes. The obtained results show that the incineration rate of radioactive nuclei
increases with the flux of the incident -r

We present the design of a pulsed ammonia laser, which is optically pumped by a TEA CO2 laser. The effect of addition of buffer gases to the ammonia gas laser (such as N2, He and Ar with different mixing ratios) on the output energy and pulse width of the laser was studied. It was found that N2 gas was preferable among the other additives as it provides highest output pulse energy and increasing the laser efficiency. The addition of N2 gas helped also in obtaining more than 40 ammonia laser lines around the 12μm, which was step tunable in the spectral range of (762-968 cm-1).

An experimental investigation is carried out to study argon ion bombardment time for a disk sputtering pole which is made from pure copper of diameter 30 mm and impacted by argon ions of energy 120 eV. This ions are generated by magnetically confined ion source . The ion source consists of a tungsten filament of 0.2 mm diameter as a cathode pole, and a graphite plate with a slot which represents the anode pole , and the arc of plasma which confined by a homogeneous magnetic field .
A set of experiments are conducted to collect the sputtering copper atoms on a slab , for different values of argon ion densities and bombardment times . The results of the study show that the net mass of collective sputtered atoms and the thickness of la

درس تاثير المستخلص المائي والكحولي لاو ا رق اليوكالبتوس في تثبيط نمو البكتريا الموجبة لصبغة ك ا رم
المعزولة من البلعوم و اللوزتين بالاضافه الى استخدام مسحوقه الجاف . تم الكشف عن مكوناته الكيميائيه
إذ احتوت او ا رق اليوكالبتوس بشكلها الجاف و مستخلصها المائي و الكحولي على ال ا رتنجات , التانينات ,
الكلايكوسيدات , الصابونينات , الفينولات و الفلافونات وكان للمستخلص المائي فعاليه تثبيطيه اعلى من
المستخ

Crud extracts of N. sativa seeds were prepared :Oil extract using soxhelt (OS), Oil extract using Reflux(OR),ethanol extract (EE), aqueous extract (AE )and buffer extract (BE).
The chemical tests indicated that N. sativa seeds have the active compounds include, alkaloids , tannins , glycosides, resins, saponins, coumorins and flavonoids The antimicrobial activity against 50 isolates (40 clinical isolates, 7 isolates from hospitals contamination and 3 standard strains )were studied by using disk diffusion and wells methods, the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were determined by using agar dilution method . The results revealed that the most efficienty extracts were OR ,followed

The aim of this study wase focusing some light to detect the cytogentic effects of zinc oxide through using cytogentic analysis (Mitotic index and chromosomal aberrations on the somatic and sex cells and sperm head abnormalities) on Balb/c mice.
Ninty eight male mice were used in this study, these animals were divided into two groups the first one was the controlling groups and the second one was. Treated with Zinc Oxide.
The results showing that the Zinc Oxide causes an inhibition of mitotic index in somatic and sex cells and the inhibition increased by augmenting the concentration, where the effect was significant (P<0.01) , and the effect of doses were significant (P<0.05), in both kinds of cells.
The chromosomal

جمعت ( 507 ) عينة من مصادر سريرية وبيئية مختلفة. بعد اج ا رء الفحوصات المظهرية والكيموحيوية ,
و Aeromonas sobria اظهرت العزلتين . Aeromonas اظهرت 17 عزلة عائديتها لجنس
بينت نتائج . C فقط قدرتهما على انتاج انزيمات البيتالاكتاميز الصنف Aeromonas eucrenophila
فحص الحساسية الدوائية تجاه 15 مضادا حيويا ان العزلتين تملك نمط المقاومة المتعددة ، اذ كانت العزلتين
مقاومة للامبسيلين، والبنسيلين ج ، و الاموكسيسيلين ، والامبيكلوكس، والل

A field trial was conducted at Abu-Ghraib research station , Baghdad, Iraq , during the spring season of 2001 , The objectives were to study the effect of sowing dates on the performance of three sunflower genotypes . A split-plot lay in a randomized complete block design with three replications were used . Five sowing dates ( 16th Jan , 4th , 14th and 26th of Feb. and the 15th of March ) were assigned to main plots , where as genotypes in sub-plots . The first sowing date was the highest in growth from flowering to maturity and from emergency to maturity . The fifth sowing date plants need more GDD. Growing degree – day from emergency to flowering and the fifth sowing date did not varied significant from first and second sowing dates

The results of this study indicated that the the average number of 2nd and 3rd instars of dubas.
nymphs Ommatissus lybicus DeBerg. were consumed by Chrysoperla mutata MacL. larvae were 291.4 . The percentage of consumption were 9.13,29.34 and 61.53% for 1st ,2nd and 3rd instar larvae respectively.

This study was carried out for isolation of Pasteurella multocida from sheep and goat and identification by using biochemical and morphological characterization. On hundred eighty five samples included (nasal swabs blood and infected lungs) from animals with respiratory infection ,and from normal animals, were collected for this purpose. Twelve isolates of P.multocida were identified by using biochemical and morphological characterization total isolation was (7.6%) from sheep, and (3%) from goats .All isolates are susceptible for penicillin and chlormphenical , while other antibiotic like Cephalothin, Amigacin, Amoxicillin, Impicilin, Tetracycline,and Trimetheprium, show a different level of susceptibility consequently as well as this st

In the present study three classes of surfactants derivatives from benzillic acid were prepared. The prepared surfactants were characterized by FTIR-Infrared spectrophotometer and CHN analysis. The physical properties of the prepared surfactants were measured i.e. (pH, density, viscosity, color, freezing point and stability to hydrolysis). The efficiency of the prepared surfactants was studied with time and long side chain substituted. The hydrophilic-lipophilic balance (HLB) was calculated.

The corrosion behaviour of carbon steel in 1M HCl solution containing various
concentration of methyl urea range (10-35×10-2)M at temperature range (285-
313)K was investigated. The corrosion inhibitive action of methyl urea on carbon
steel was studied using weight loss measurement and atomic absorption analysis to
find the amounts of dissolved metal in acidic solution in presence and absence of
methyl urea. The results showed that urea caused protection efficiency reached to
82% when (10-3)M methyl urea concentration was used. The coverage () of metal
surface by methyl urea could be obtained from the rate of corrosion in the presence
and absence of methyl urea in the acid solution. Results

Two sensitive and fast spectrophotometric methods using batch and flow-injection procedures for the determination of paracetamol are proposed. The methods are based on the formation of a red dye between this drug and diazotized 4-nitroaniline in sodium carbonate medium. The reaction conditions are studied and optimized for both batch and flow injection procedures. The calibration graphs resulting from measuring the absorbance at 528 nm are linear over the ranges 0.5 – 20 and 1 – 150 μg mL-1 of paracetamol with relative standard deviations of 1.2420% and 1.5634% for batch and flow-injection methods, respectively. The methods are applied to the routine analysis of paracetamol in pharmaceutical preparations. The obtained results agree

New Schiff base tetradentate ligand with type (N2S2): 1,3-isophthaldehyde bis(4–methyl 3-thiosemicarbazone)(ISMTSC) has been prepared. Synthesis was carried out by the condensation of 1,3-isophthaldehyde and 4-methyl 3-thiosemicarbazide in mole ratios of (1:2) respectively and under nitrogen atmosphere. The ligand has been characterized and its structure was elucidated depending upon microelemental analysis (CHN), spectral data (I.R, U.V–Vis, 1H, 13CNMR and mass spectrum). Series of metal complexes of the ligand with metal ions such as CoII, NiII, CuII, CdII and HgII have been synthesized by adding (1 mm mole) of (ISMTSC) to the methanolic solution (1 mm mole) of metal salts. The complexes were characterised and their stereochemical

Since the beginning of mankind, the view of the sky was present through observations with the naked eye, then it developed with time, and the sciences and tools of astronomical observations developed, including photometric measurements, which reached a high degree of accuracy in describing various cosmic phenomena, including the study of galaxies, their composition, and the differences between them, and from here the importance of this study emerged, to determine the differences between two distinct types of classification of galaxies, which are normal and barred spiral galaxies, where two galaxies NGC 4662 and NGC 2649 were chosen that represented certain types of galaxies to study the morphological structure of the two galaxies, as wel

This paper gives a dynamic analysis of the recently identified calibration parameter (NRSK) in the distance modulus equation for all celestial planets. The parameter NRSK has been applied for seven different comets from the Kuiper-Belt region: (1P/Hally, C/2023 E1 (ATLAS), 23P/Brorsen-Metcalf, 20D/Westphal, 12P/Pons-Brooks, 13P/Olbers, and C/2022 P1 (NEOWISE)). This was accomplished by programming data from the Live Sky program from previous years. It is determined that each comet has a distinctive NRSK that distinguishes it from other comets and that this parameter does not equal one. According to the data, the seven comets' average NRSK is (2.53 for 1P/Hally, 2.561forC/2023 E1 (ATLAS), 2.57 for 23P/Brorsen-Metcalf, 3.07 for 20D/Westpha

Light isotopes, especially closed shell nuclei, have significance in thermonuclear reactions of the Carbon-Nitrogen-Oxygen (CNO) cycle in stars. In this research, 12C(p, γ) 13N and 14N(p, γ) 15O reactions have been calculated by means of Matlab codes to find the reaction rate across a temperature range of 0.006 to 10 GK using non-resonant parts, as well as the astrophysical S- factor S(E) at low energies. It was concluded that the high binding energy of 12C and 14N nuclei make the reaction less probable thus enabling other competitive processes to develop, which enhances the probability of other competitive proton reactions in the CNO cycle.

The two galaxies, UGC 8335 (East) E and (West) W, were investigated through the utilization of photometric and spectroscopic approaches, employing g, r, i, and z filters to gather the maximum amount of details feasible; the observed data ware obtained using the data releases (DR7 and DR17) provided by "The Sloan Digital Sky Survey (SDSS)." Subsequently, the data were fitted to ellipsoids through the utilization of "the Images Reduction & Analysis Facilities (IRAF)" through implementation of the STSDAS ELLIPS tool. Multiple characteristics of the two galaxies UGC 8335 E and W, have been scrutinized, including surface brightness, magnitudes, both vertical and horizontal changes, accumulated flux, central axis position angles, elliptici

Understanding the motion of celestial objects is essential for space exploration. Observing the new crescent Moon requires advanced technological devices due to the moon’s position in the atmosphere and the refraction of sunlight on the horizon. Nowadays, theodolite and telescope applications are commonly used for new crescent moon sightings because they offer superior visibility compared to the naked eye. In Sarawak, the Falak Section holds the authority to observe the new crescent Moon to determine the beginning of the Hijree month. Thus, this study aims to examine the development of devices to observe the new moon crescent in the Sarawak Mufti Department. Qualitative methods are employed, involving the perspectives of astronomers an

Several studies have been made to understand the behavior of Total Electron Content (TEC) in the topside of the ionosphere during two types of geomagnetic storms. The aim of this research is to examine the ionospheric disturbances using the TEC parameter during the great and severe geomagnetic storms that occurred during the period (28-30 October 2003). Theexamination was conducted for the region,includingIraq and surrounding areas that cover the arealatitude 27-39^oN; longitude 27-54^oE). TEC data were obtained fromthe Defense Meteorological Satellite Program (DMSP), to determine the type of geomagnetic storm, the Disturbance storm time (Dst) index was gathered for the selected days from the website Koyota, Japan WDC

This paper aims to study, the process of satellite transition between different orbits and evaluate the characteristics of the turbulent transitional orbit of transferring a satellite from Low Earth Orbit (LEO) to geostationary orbit (GEO) (hp=35790km). The measurements in this research involve considering different LEO characteristics of perigee heights (h_p=200, 400, 600,800) and eccentricities (e=0.01, 0.05 and 0.1), whereas the inclination is fixed to be (i= 23.445 degree).Also, the transfer of the satellite was studied in two stages. The first stage was from the perigee of the first orbit at height 200 km, to the apogee of the second orbit at height 945 km with eccentricity (0.01). the second stage, was the transition the satellite

Array antennas have an interesting role in the radio astronomy field. The array antennas allow astronomers to obtain high-resolution signals with high sensitivity to weak signals. This paper estimates the meteors' positions entering the Earth's atmosphere and develops a simulation for array antenna radar to analyze the meteor's echoes. The GNU radio software was used to process the echoes, which is a free open-source software development toolkit that provides signal processing blocks to implement in radio projects. Then, the simulation determines the azimuth and elevation of the meteors. An improved Multiple Signal Classification (MUSIC) algorithm has been suggested to analyze these echoes. The detected power of each meteor echo has a Do

In this work various correlation methods were employed to investigate the annual cross-correlation patterns among three different ionospheric parameters: Optimum Working Frequency (OWF), Highest Probable Frequency (HPF), and Best Usable Frequency (BUF). The annual predicted dataset for these parameters were generated using VOCAP and ASASPS models based on the monthly Sunspot Numbers (SSN) during two years of solar cycle 24, minimum 2009 and maximum 2014. The investigation was conducted for Thirty-two different transmitter/receiver stations distributed over Middle East. The locations were selected based on the geodesic parameters which were calculated for different path lengths (500, 1000, 1500, and 2000) km and bearings (N, NE, E, SE, S,

The study of sitology has a long historical background and has recently attracted the attention of many researchers. One of its most important branches is the location of fire stations, which are of great importance in major cities. One of the most important features of an appropriate location is increasing coverage and reducing access time. In this research, geographic information systems were used to choose the most appropriate sites on the Al-Rasafa side in the city of Baghdad/Iraq to facilitate access to the scene of the accident as soon as possible from the fire stations and through the use of the geographical database of the city of Baghdad. GIS analysis was used to build the mathematical model that was adopted based on a number of

The research involves examining the influence of partial solar eclipse on the strength of neutral hydrogen from the Sun. Baghdad University Radio Telescope (BURT) was used to monitor the partial solar eclipse on the 25^th of October, 2022. Radio observations from the Sun were recorded from 11:30 AM to 03:36 PM. This means that the HI emission from the Sun was recorded before, during and after the event. It was noticed, that at the moment of maximum eclipse, ~ 46% of the Sun’s disk was covered by the Moon. For the purpose of this research, the solar radio wave intensity was monitored and the solar flux density was determined at different times, i.e. before, during and after the partial solar eclipse. The obtained results showe

The proposed framework can capture realistic spatiotemporal variations in atmospheric turbulence parameters based on local meteorological conditions, such as Fried's parameter r₀, isoplanatic angles θ₀, seeing ε, scintillation rate , and the wavefront coherence time τ₀. Those parameters have been deduced from the refractive index structure parameter Two Iraqi locations were compared, specifically the middle and southern borders, and atmospheric turbulence parameters relevant to astronomical observation were measured, lines were drawn at latitudes 34.26° and 28.31°, respectively. The methodology included collecting meteorological data from both sites and performing numerical simulati

This study aims to investigate the features of stellar-gaseous kinematics and dynamics mass using scaling coefficient relationships (such as the Faber–Jackson relation (FJR)) of two samples of elliptical and lenticular galaxies. These two samples of 80 ellipticals and 97 lenticulars were selected from previous literature works. The Statistical Package for Social Sciences )SPSS( and Matrix Laboratory (MATLAB) program were used to find out the associations of multiple factors under investigation such as main kinematic properties of the gaseous-stellar (effective radius Re, surface density within the effective radius (Ʃeff) , stellar mass in the blue band (Mstar (B)), gas mass ( Mgas), dynamic (Mdyn) and baryonic (Mbar), supermassive bla

The accretion circumstellar disk of young stars and the Brown dwarf plays an essential role in the formation and evaluation of the planet. Our main work in this paper is to investigate the geometrical shape model for the protoplanetary disk around one of the Brown Dwarfs. The photometric measurements for the brown dwarf CFHT-BD-Tau 4 were extracted from the Vizier archive. We used a numerical simulation to build a model of the spectral energy distribution of our target CFHT-BD-Tau 4. The spectral energy distribution model was fitted with observational data for the brown dwarf CFHT-BD-Tau 4. A transitional disk has been assumed around CFHT-BD-Tau 4. We obtained physical properties of the two disks and the size of the gap between them by f