Ibn Al-Haitham Journal For Pure and Applied Sciences

Fourty -tow Libyan patients with hydatidosis, which were

referred to by the physician for the detection of hydatid cyst by X - rays, Ultrasound and CT-Scan. The infection rate in females and males was(69% )and (31% )respectively .The highest rate 69% was in the liver, followed by the lung( 23.8%), the brain (4.8%) and kidney

(2.4%).

A total of 42 serum samples were gathered from Libyan patients infected with hydatidosis, 33 serum samples from patients cases with other parasitic diseases than hydatidosis and 30 serum samples from healthy normal controls and were tested by Dot-ELIZA utilizing antigen B from sheep hydatid fluid, dotted onto nitrocellulose filter discs.lJlg of antigen B per dot, ,serum dilution of 1:800, dilution conjugate of 1:1000 and 45 minutes incubation were found optimal.

The sensitivity and specificity of the tests were 97.7% and 98.4%, respectively for detection hydatidosis. No false positive reaction was observed when 31 sera from healthy subjects were assayed. One case of cross-reactions was observe as for serum from a teaniasis person.

The study was carried out for the period March 2007 -

January 2008 , in order to describe the status of the environmental sanitation and the prevalence of rodents infestation in nine quarters in Baghdad city . The results showed that the PI varied between 40 -

100% in garbage accumulation places and between 33.3 - 100% in the

other sites (houses , shops , bakeries and book shops) . It was noticed that, no rodents control activities were carried out from 2003 till now because of the unsuitable conditions a especially in Baghdad city . The level of ES was bad in general according to three degrees of evaluation (weak , mid and good)

Twelve students rinsed their mouths once daily with ten ml. of 0.2 % aqueous solution of chlorhexidine gluconate for five days, and seven students served as a control group that used distilled water for rinsing. The result indicated that after one hour of treatment, an obvious sharp reduction in the viable counts of mutans streptococci, total aerobic bacteria, and to less extent the count of lactobacilli in saliva after one hr. of treatment. Anآ increase in the number of these bacterial groups was clearly noticed three hrs. after the application of chlorhexidine and continued to increase later on. In spite of that increase, the bacterial numbers in saliva remained below the initial numbering in this study.

The fresh water ecosystem constitute an essential and very important for human life, for this reason it should be kept away from all the chemical pollutants including the pesticides The best way for Fighting harmful insects.(such as Anophles larvae) is by the biological control.



In the present study two species of Cyclopoida: Copepod, Mesocyclops hyalinus and Cyclops agilis آ were used as predators for Anophles larvae.



The data showed that the percentages of predation were 65% and 56%

forM. hyalinus and C. agilis respectively



and the means of predation were 1.3 larvae/ female and 1.12 larvae/

female.



Both the percentages of predation and the mean value of predation were increased as the number of pray individual is increased.

The optical modulator was designed by using iterated function

systems (IFSs) by IFS Construction Kit program. The modulator was inserted into the optical system using ZEMAX optical design program. In this program, it is assumed that the modulator is made from one of آ the infrared transmitting materials. Eight materials at room temperature were used in this study; these are IRTRAN materials, Si, and Ge for the range of 3-9 l-lm.

Systems were evaluated and analyzed by using different criteria,

including spot diagram, modulation transfer function, and point spread function. The effect of optical modulator change with the chang of آ its material results in focusing of functions and frequencies as required. Root mean square and geometrical spot sizes decrease with the increase of the refractive index, while the maximum spatial frequency increases.

Magnetic Resonance Imaging (MRI) is one of the most important diagnostic tool. There are many methods to segment the

tumor of human brain. One of these, the conventional method that uses pure image processing techniques that are not preferred because they need human interaction for accurate segmentation. But unsupervised methods do not require any human interference and can segment the brain with high precision. In this project, the unsupervised classification methods have been used in order to detect the tumor disease from MRI images. These methods involved K­ mean or Isodat, which were based on the digital value distribution. The results show the classification process was a powerful tool to identify the Tumor disease from MRI images. All results were evaluated by using the ENVI Version 3.2 facility.

A new method presented in this work to detect the existence of hidden

data as a secret message in images. This method must be applyied only on images which have the same visible properties (similar in perspective) where the human eyes cannot detect the difference between them.

This method is based on Image Quality Metrics (Structural Contents

Metric), which means the comparison between the original images and stego images, and determines the size ofthe hidden data. We applied the method to four different images, we detect by this method the hidden data and find exactly the same size of the hidden data.

High Alumina Glasses "Alumina Silicate Glasses" was prepared by utilizing powder technology technique. The starting materials are wasted soda-lime glass from an industrial site, Iraqi­ Duekhla raw kaolin and small amounts of potassium carbonates.

X-ray Diffraction and FTIR analysis show complete vitreous glasses are obtained. Increasing Alumina content plays an obvious role in improving physical and mechanical properties of the prepared high alumina glass. In addition, the increased alumina content enhanced the dielectric constant and reduced dielectric loss. These results may be interpreted as due to the bridging bonding of alumina with both the silica and the alkali oxides; which impedes the alternating electric field.

Ultrasonic pulse echo measurements on porous alumina as ceramic

material with porosities ranging from (20-40)% showed effect of volume

fraction of porosity on both thermal and elastic properties. A quadratic relationships, by using a least squares method, is deduced for the dependence of the shear velocity, longitudinal velocity, shear modulus, Young's modulus, bulk modulus, Poisson 's ratio, Debye temperature, specific heat, and thermal conductivity on the total porosity. By these relationships, the thermal and elastic properties results of pore-free alumina were calculated. The elastic properties results of ceramic decrease substantially with increasing porosity, except Poisson 's ratio which is the constant. Debye temperature and thermal conductivity decrease too substantially with increase of porosity, while specific heat increases.

Kaolin ceramic compacts sintered at various temperatures are investigated to correlate their microstructure with their acoustic parameters. Pulse velocity , attenuation coefficient, and quality factor values are ducts from ultrasonic attenuation measurements, moreover, the dynamical mechanics parameters( Young and shear modules) exhibited an explicit relationship with the acoustic quality factor.inturn are related to the microstructure which is heavily affected by the sintering mechanism.

The crystal structure and unit cell dimensions of the (S03) compound have been determined by employing the principles of crystallography.

The X-Ray diffraction spectra of (Sb203) which recorded as a function of different annealing temperatures (100,150,200 and



250)±5c and for durations (0.5 hr,

0



1hr, l.Shr and 2hr), showed a



noticeable improvement, a decreasing in the unit cell dimensions and

an increasing in the number of diffraction spectra.

Indexing of diffraction spectra and refinement of unit cell

dimensions showed that the compound (Sb203) which is a cubic system are (a=ll.271A) before annealing, and (a= ll.207A) after annealing at 250±5c for (2hr).

This study deals with the phenomena of dust storms in Iraq based on the data recorded by the Iraqi Organization for three stations which are: Mosul, Baghdad, and Nasiriyah.

60 years was the period and the relation between the three stations data covered dust storms cases and the wind speed was also studied. The months and years which are mostly affected by dust storms during the period under consideration are presented, Finally Autocorrelation for three stations are founded.

Ethanol production were evaluated by many strains with varing

degree of flocculation in fermentation medium of date extract withl 0

Brix, PHS in 30C0آ آ for آ 48hr.lt was found that ethanol production decrease with increase of flocculation degree and non-flocculant strain is آ more efficient in آ producing ethanol from flocculant strain,then

ethanol sensitivity were examined for the same strains, in liquid medium YE, it was found thatآ آ strain is more sensitive from nonآ­ flocculant and ethanol sensitivity depends upon flocculation degree.

Sixty hyperthyroidism patients aged (20-45) years from different parts of Iraq , (20) from the North , (20) from Baghdad , (20) from the South of Iraq , and (20)control were tested for the presence of antithyroid peroxidase antibody(Tpo-Ab)and for Mg and Co levels in their sera.



The results revealed a significant increase in (Tpo-Ab) in all patients group from the different parts of Iraq compared to control , also a significant increase in (Tpo-Ab) for the group from North compared to other parts.



A significant decrease in Mg and Co levels in sera of patients from all parts of Iraq compared to control values , while no significant differences among patient groups were noticed ..In Conclusion anti - Tpo-Ab is specific for thyroid autoimmune disease , also Mg and Co were altered in response to thyroid hormones

Mixedآ catechol- آ salicyladiminenate derivatives of antimony

)


(III) and tin (IV) of the general formula M(cate)L"]X, [where:M= Sb, X= آ 0; آ M=Sn, آ X= آ Cl; آ cate=catechol; آ n=l, آ L=aniline, آ n=2, آ L=mآ­ bromo-aniline, n=3, L=p-bromoaniline] were prepared by the reaction of equimolar amount of [(cate)MCln], [where n=l آ or 2] with Nآ­ arylsalicylaldimines HOC6H4CH=NC6Hs (HL1آ , HOC6H4CH= NC6H4



)


(HL1



and p-HOC6H4CH = NC6 Br (HL3)Ø¢ in methanol as a solvent.




These new derivatives were characterised by elemental analysis and spectroscopic methods [(I.R), (U.V-Vis) and ctH, 13C NMR for HL2آ ] along with conductivity and melting point measurements.آ آ These studies آ revealed آ that آ the آ geometry about آ Sb آ (ill) آ and آ Sn آ (IV) is

tetrahedral.

Iodide آ in samples آ containing آ magnesium آ fluoride آ was آ determinedآ آ by using iodide selective آ electrode. آ Detecting آ the limit for iodide determination

was around آ 5x1 oآ·5آ آ M with a standard آ deviation آ ranged آ from آ آ± 0.3 to آ± 0.6.

Quantitativeآ آ methodsآ آ including; standard آ additionآ آ method, آ Potentiometric

titration آ by using a Gran plot paper for an equivalent آ point determination and a آ directآ آ methodآ آ wereآ آ used آ for آ the آ analysis.آ آ Dissolutionآ آ of آ magnesium fluoride samples آ was investigated آ in various acids (HCI, HN03, HCI04, and H3P04). Good آ recovery آ of آ iodide آ was obtained آ by using آ hydrochloric and phosphoric آ acids آ for dissolution. Interference آ of آ uranyl آ ion and آ halide آ ions,

pآ·, cr,آ and Br- on iodide response was also studied. This method can be used

for the determination of iodide in magnesium آ fluoride obtained آ from uranium

metal production.

In this work, Elzaki transform (ET) introduced by Tarig Elzaki is applied to solve linear Volterra fractional integro-differential equations (LVFIDE). The fractional derivative is considered in the Riemman-Liouville sense. The procedure is based on the application of (ET) to (LVFIDE) and using properties of (ET) and its inverse. Finally, some examples are solved to show that this is computationally efficient and accurate.

In this paper we shall prepare an sacrificial solution for fuzzy differential algebraic equations of fractional order (FFDAEs) based on the Adomian decomposition method (ADM) which is proposed to solve (FFDAEs) . The blurriness will appear in the boundary conditions, to be fuzzy numbers. The solution of the proposed pattern of equations is studied in the form of a convergent series with readily computable components. Several examples are resolved as clarifications, the numerical outcomes are obvious that the followed approach is simple to perform and precise when utilized to (FFDAEs).

In this paper a hybrid system was designed for securing transformed or stored text messages(Arabic and english) by embedding the message in a colored image as a cover file depending on LSB (Least Significant Bit) algorithm in a dispersed way and employing Hill data encryption algorithm for encrypt message before being hidden, A key of 3x3 was used for encryption with inverse for decryption, The system scores a good result for PSNR rate ( 75-86) that differentiates according to length of message and image resolution.

Some Results on Fuzzy Zariski

Topology on Spec(J.L)

This paper is an attempt to help the manager of a manufactory to

plan for the next year by a scientific approach, to maximize the profit and آ provide optimal آ monthly quantities of آ production, آ inventory,

work-force, prices and sales. The computer programming helps us to execute that huge number of calculations.