With the wide developments of computer science and applications of networks, the security of information must be increased and make it more complex. The most important issues is how to control and prevent unauthorized access to secure information, therefore this paper presents a combination of two efficient encryption algorithms to satisfy the purpose of information security by adding a new level of encryption in Rijndael-AES algorithm. This paper presents a proposed Rijndael encryption and decryption process with NTRU algorithm, Rijndael algorithm is important because of its strong encryption. The proposed updates are represented by encryption and decryption Rijndael S-Box using NTRU algorithm. These modifications enhance the degree of
... Show MoreIn this work, the fine structure macro-porous silicon (macroPS) substrate was prepared by photo-electro-chemical etching of n-type silicon wafer. Ultraviolet illumination condition of wavelength 360nm wavelength and intensity of about 100mW/cm2 with etching current density of about 50 mA/cm2 and etching time 5
min was employed. The Hybrid device gold nanoparticles /macroPorous Silicon (AuNPs/macroPS) was fabricated by deposition AuNPs into mPS substrate Via immersion plating process of macroPS in the solution of HAuCl4 with the (10-3M) concentration and 2min immersion time. The characteristics of PS before and after
immersion process were investigated by scanning electron microscopy (SEM), EDS,&nb
Recent studies have proved the important role of fungi in the biodegradation of oil pollutants. The present study aims to find the optimal conditions for the fungi to get the best rate of the biodegradation of the polycyclic aromatic hydrocarbon (PAHs) (Naphthalene) compounds. Soil samples were taken from 18 different sites polluted with oil wastes and cultured then obtained 312 isolated fungi from 64 replicates Primarily screening were done on fungal isolates on solid media containing naphthalene the results revealed that 25 fungal isolates gave good growth, 47 fungal isolates gave Moderate growth, 66 gave weak growth and 147 fungal isolates gave no growth on Naphthalene solid media.
Then secondary screening were done on 25 fungal is
One hundred thirty - five clinical specimens of urine, blood, teeth root canal and burns were obtained from patients in hospitals of Baghdad. The specimens were cultured on Pfizer Selective Enterococcus agar to purify Enterococci isolates. 20 E. faecalis isolates were identified biochemically by growing in 10Cº, 45Cº, 6.5% NaCl, at pH 9.6 and confirmed by VITEK. Determination of Vancomycin-Resistant E. faecalis isolates were done by the minimum inhibitory concentrations [MICs] using agar dilution method. Seventeen E. faecalis isolates were determined as Vancomycin-Resistant and Intermediate Resistant.
The study aimed to find an association between Type two diabetes mellitus (T2DM) patients, obesity and the rate of nasal carriage of Staphylococcus aureus (NCSA) producer of TSST-1 in patients with T2DM compared with non-diabetic control groups. T2DM patients and control subjects were selected from outpatient of "The Specialist Center for Diseases of Endocrine and Diabetes" in Baghdad. The subjects were divided into 4 groups: Group I included 21 obese T2DM patients; Group II included 20 lean T2DM patients; Group III included 20 obese as control group and Group IV included 21 lean as control group. The study included sample with size (n= 82), male and female, with the ages ranged from 35 to 75 years, and the patients were not on any kind
... Show MoreA new Turbidimetric method characterized by simplicity, accuracy and speed for determination of Hydronium ion by continuous flow injection analysis. The method was based on the formation of complex Zn3[Fe(CN)6] for Zinc(II) that was eluted by Hydronium ion from cation exchanger column with Potassium hexacyanoferrate(III) for the formation of a pale yellow precipitate and this precipitate was determined using homemade Linear Array Ayah-5SX1-T-1D continuous flow injection analyser. The optimum parameters were 2.7 mL.min-1 flow rate using H2O as a carrier stream, 1.7 mL.min-1 reagent stream, 110 L sample volume and open valve for the purge of the sample segment. Data treatment shows that linear range 0.01-0.1 mol.L-1 for each acids (HClO
... Show MoreSince the inflammatory factor IL-6 known by its critical role in different metabolic reactions in the
body, therefore, this study was designed to detect it is effect in the thyroid gland function by
injecting three groups of rats, the first with IL-6 , the second with carbimazole (antithyroid drug) and
the third with normal saline (Control).The experiment included three groups of rat; each was injected
with recombinant human interleukin-6 (rhIL-6), Carbimazole, or normal saline (Control). The results
of experiments showed that both IL-6 and carbimazole caused a decrease in the levels of thyroid
hormones (T3 and T4) in animal sera, and a significant decrease in animal body weight, but had no
effect on the liver weight
This work presents the UC@MOOC project as a pedagogical innovation to face the effects of massification that are making Moroccan universities endure many constraints for the past ten years, as well as other African universities. It aims, among its objectives, to cope with the massification factor and to overcome the language difficulties encountered by students. In this project, our top priority is to reduce academic failure then we will get to the point of responding to the training' needs. Courses are scripted and posted online which did not require many resources, so their production cost is relatively low. Audiovisual digital content also helps us to save time, and go to a hybrid teaching or even flipped classrooms in some cases. The
... Show MoreIn a global context increasingly concerned with climate change, understanding the impact of economic growth on the environment is becoming crucial, especially for developing countries. Morocco has been committed to the United Nations Framework Convention on Climate Change (UNFCCC) to achieve the objectives set for reducing greenhouse gas (GHG) emissions by 13% by 2030, with 2010 as the reference year. Such a target could reach 32% by the same horizon under certain technical, financial and capacity building support conditions.
The main emitters of greenhouse gases (CH4 and CO2) are landfills because during the decomposition of solid waste CO2 is the most present gas pollutant is for this reason focuses this case study carried out in a
The current study includes the preparation of CuxAl0.3-xNi0.7Fe2O4 ferrite nanoparticles where: x = 0, 0.05, 0.1, 0.15, 0.2, 0.25, and 0.3 using the auto combustion method (sol-gel). The citric acid was used as fuel for auto combustion. The X-ray diffraction (XRD) test showed an increase in the crystal lattice constant, which is of face-centered cubic (FCC) structure. Field Emission Scanning Electron Microscopy (FE-SEM) showed that the compound has apparent porosity; its grains are spherical or semi-spherical and within the nanoscale. The Energy-Dispersive X-ray spectroscopy (EDX) proved the presence of all the elements involved in the preparation of the
... Show MoreCholesterol oxidase (EC:1.1.3.6) is industrially and commercially important for
the application in bioconversions for clinical determination of total or free serum
cholesterol, and in food industry, for this reason this study was aimed to isolate
cholesterol oxidase producing Pseudomonas aeruginosa from different local
sources, by taking 55 swap samples from different serological samples includes ears,
urine, burns, wounds and sputum, in addition to another 35 environmental samples
collected from soil and water from different locations in Baghdad governorate. From
these samples 115 bacterial isolate were obtained, and among them only 60 isolate
were identified as P. aeruginosa according to the resu
The present work aimed to examine the nature and degree of the cross-correlations among three different ionospheric indices: these are Optimum Working Frequency (OWF), Highest Probable Frequency (HPF), and Best Usable Frequency (BUF). VOCAP and ASASPS models were adopted to determine the datasets of the selected ionospheric indices. The determination was made for different transceiver stations that provide certain HF connection links during the minimum and maximum years of solar cycle 24, 2009 and 2014, respectively. Matlab program was implemented to produce the geodesic parameters for the selected transceiver stations. The determination was made for different path lengths (500, 1000, 1500, and 2000) Km and bearings (0o
... Show MoreA simple, rapid and sensitive spectrophotometric methods for determination of
trace amounts of (OXC) as (OXC-Au(III)) complex in octane as solvent for
extraction the complex. The green-blue soluble product give maximum absorption at
705 nm, Beer’s law is obeyed over the concentration range of (5-35) μg.ml-1 with
(molar absorptivity = 1.606×104 L.mol-1.cm-1), (r = 0.9981), (D.L = 0.0864 μg.ml-1),
(%RSD = 2.020), with UV-Vis method.
When using indirect FAAS a linear range of (2-16) μg.ml-1, (r = 0.9992), (%RSD =
2.667), (D.L = 0.0526 μg.ml-1) with (ε = 6.02×105 L.mol-1cm-1).
The optimum conditions for colour development are described. The proposed
methods have been successfully applied
Relative intensity to the single peaks and true sum peaks to the elements of cascading decay of gamma-rays as Co and "y have been measured for different point source detector distances by using 33 Nal(Tl) detector into two different methods. These methods give a good information to distinguish between single and true sum peaks especially in analysis a complex puise height spectrum; where the relative intensity for true sum peak varies with source detector distance while it is independent for single peak. The results of two the methods are in fair agreement.
The present study was carried out on (80) adults asthmatic patients (43 male and 37 female), their age from (25 -65) years. Some of them acute episodes while other between episodes interval.They were selected from out patients clinics of AL-Zahra'a hospital for allergy and asthma in Baghdad.All patients were diagnosed according to standard medical criteria as being asthmatic. The results of investigations were compared with those for a total of (20) healthy individual [(12) male & (8) female] with age (25 – 45) years, as a control group, throughout the period extended from ( July 2014 till December 2014).
The patient samples were applied to determine complete blood count include (Hb, PCV, RBC count, WBC & Eosinophil count)
The traditional shortest path problem is mainly concerned with identifying the associated paths in the transportation network that represent the shortest distance between the source and the destination in the transportation network by finding either cost or distance. As for the problem of research under study it is to find the shortest optimal path of multi-objective (cost, distance and time) at the same time has been clarified through the application of a proposed practical model of the problem of multi-objective shortest path to solve the problem of the most important 25 commercial US cities by travel in the car or plane. The proposed model was also solved using the lexicographic method through package program Win-QSB 2.0 for operation
... Show MoreA mixture of three components having different physical and chemical properties
is represented by equilateral triangular diagram. Such a mixture produces various
regions on the interior of the triangular diagram. A system in each apex of the
triangle consists of two components.
In this work, the effect of surface active agent on the micelle and microemulsion
formation in a mixture, of octylphenyloxy-ethylene, octanol and water were studied
at 25°C.
This mixture exhibits three regions. The appearance of these regions well fit with
approach that surface active agent can take several forms depending on their
concentration in any mixture (22). The possible forms are monomer hexagonally
order
This paper aims at introducing a new generalized differential operator and new subclass of analytic functions to obtain some interesting properties like coefficient estimates and fractional derivatives.
This research includes the synthesis of some new nucleoside analogues via 1,3-
dipolar cycloadditon reaction starting with 1,3,4,6- Tetra- O-benzoyl –2 – azido-2-
deoxy- β – D- fructofuranose (F3) which was prepared in three steps ,protection
(benzoylation ) , bromination and azotation ((F1-F3) from D- fructose as sugar
moiety while the base moiety , 2-substituted benzimidaole derivatives (A1-A5)
were synthesized by condensation of O-phenylenediamine with different aromatic
aldehyde .
Nucleophilic substitution of propargyl bromide with benzimidaole derivatives (gave
the N- substituted compounds (B1-B5) which were reacted with azido sugar through
1,3- dipolar cycloadditon reaction to give nucleoside analo
This research includes the studying of tensile resistance for composite
materials reinforced with glass fibers (E-glass). Epoxy resin was used as matrix for the
reinforced materials that consist of artificial glass fiber layers (woven roving) with
directional 0-90 and with the random direction. The sheets made of composite materials
with a number of layers for both types of glass fibers with volume fraction 40% for
reinforced materials. All these sheets were cut into samples with measurement 10X120
mm and with sample thickness dependent on the number of layers of glass fibers.
Tensile resistance test samples were cut to study tensile resistance for these composite
materials. The results and labora
In this paper we study the uniqueness of meromorphic functions that share one
value only with their derivatives. The results here are improved for the results in [1]
and also we gave answer for open question in our paper.
Helicobacter pylori was islotaed localy from patients with Duodenal Ulcer. Two
biopsies were taken from each patient, the first used for isolation of H. pylori using
ski row medium, the second used for rapid urease test. Optimum growth temperature
was 37 c. Isolated H. pylori was identified according to bacterial shape, graw stain,
biochemical test, sensitivity to cephalothin & resistance to nalidixic acid. The result
showed that component of culture media, light, & oxygen are important factors affecting Hansformed from spiral to coccoid shapes. It has been noticed that using
Brain – heart infusion a gar and blood a gar base with growth supplement give &5%
blood, percentage transformation
A complex number is called an extended eigenvalue for an operator on a Hilbert space H if there exists a nonzero operator such that: such is called an extended eigenoperator corresponding to. The goal of this paper is to calculate extended eigenvalues and extended eigenoperators for the weighted unilateral (Forward and Backward) shift operators. We also find an extended eigenvalues for weighted bilateral shift operator. Moreover, the closedness of extended eigenvalues for the weighted unilateral (Forward and Backward) shift operators under multiplication is proven.
In this paper, the 5 minutes measured wind speed data for year 2012 at 10 meter height for Tweitha have been statically analyzed to assess the time of wind turbine electrical power generation. After collection Tweitha wind data and calculation of mean wind speed the cumulative Weibull diagram and probability density function was ploted, then each of cumulative Weibull distribution, cut-in and furling turbine wind speed could be used as a mathematical input parameters in order to estimate the hours of electrical power generation for wind turbine during one day or one year. In Tweitha site, found that the average wind speed was (v= 1.76 m/s), so five different wind turbines were be selected to calculate hours of electrical generation for A
... Show MoreA new Turbidimetric method characterized by simplicity, accuracy and speed for determination of iron(III) in drug samples by continuous flow injection analysis. The method was based on the formation of complex for iron(III) with 8-hydroxyquinoline in presence of ammonium acetate as a medium for the formation of deep green precipitate and this precipitate was determined using homemade Linear Array Ayah-5SX1-T-1D continuous flow injection analyser. The optimum parameters were 2.6 mL.min-1 flow rate using H2O as a carrier, 1.9 mL.min-1 (14 mmol.L-1) ammonium acetate, 2.4 mL.min-1 (14 mmol.L-1) 8-hydroxyquinoline, 60 L sample volume and open valve for the purge of the sample segment. Data treatment shows that linear range 0.1-8.0 mmol.L-1
... Show More3D seismic reflection study was applied to Abu Amood oil field which is located at the southern part of Iraq within DhiQar province that carried out by oil Exploration Company to an area of 1534.88 Km2 for studying Nahr Umr Formation. Synthetic seismogram was prepared by using available data of well (AAM-1) in order to define and picking the reflectors on the seismic section. These reflectors are (Top of Nahr Umr Formation and middle unit of Nahr Umr Formation which represents the layer of sand). The seismic section time slice maps confirmed that the Nahr Umr Formation was not affected by faults and the faults may probably present in the Ratawai and Yamama Formations, where the variance attribute applied on seismic sections showed that t
... Show MoreThe effect of tamoxiffen which used in the breast cancer treatment were studies on liver tissue of 10 females white mice,Both groups (control and treated)were drinked with(0.4 mg\kg) for 90 days. Clanges in liver tissue were seen through the examination of tissue and studied at the cellular level.The study aims to identify the damage caused by drug tamoxiffen on the liver tissue and its effects for long period.
PM3 and DFT quantum mechanical calculations were employed to give further
insight into the inhibition efficiency of the newly prepared cefotaxime amic acid
derivative. The calculated physical properties and quantum chemical parameters
correlated to the inhibition efficiency such as EHOMO (highest occupied molecular
orbital energy), ELUMO (lowest unoccupied molecular orbital energy), the energy gap
(ΔE(HOMO-LUMO)), hardness (η), softness (S), dipole moment (μ), electron affinity
(EA), ionization potential (IE) and active site absorption..…etc., all studied and
discussed at equilibrium geometry in the gas phase and at its right symmetry (C1).
Experimentally the newly prepared cefotaxime derivative could be abso
Psoriasis is a chronic inflammatory skin disease that is closely related to the oxidative stress state of the body. The current study focused on some immunological indicators directly related to inflammation (Procalcitonin, and lysozyme) with the aim of investigating their potential as a prognostic factor for psoriasis. This study included 150 samples, including 90 patients with psoriasis and 40 people who appeared to be healthy, and was conducted from November 2021 to April 2022. The results showed a significant increase in the level of procalcitonin in patients with psoriasis compared to its level in the control group, while it was noted that the increase in the level of the other indicators was not significant, according to the statis
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