JOURNAL OF EDUCATION AND SCIENCE

Three new series of 4-aminohippuric acid ester derivatives have
been prepared. The azo (4a-f) and azoamino (5a-e) compounds were
prepared from electrophilic addition reaction of 4-diazonium chloride
hippuric acid ester with phenols, aniline and secondary aliphatic amines,
while Schiff bases(6a-g) were prepared from the condensation of 4-
aminohippuric acid ester with aldehydes. The structural formula of the
prepared compounds were confirmed by physical and spectral methods.

Extracellular proteases with caseinolytic activities were identified
in culture supernatant of several pathogenic bacterial isolates of
Staphylococcus aureus and Pseudomonas aeruginosa. Specific activities
of these enzymes ranged from 0.27 to 3.89 unit/min/mg protein. The most
virulent isolates with high level of proteases production revealed great
adherence ability to epithelial cells isolated from mouth and adherence to
the tubes surface while others without any level of production of these
enzymes didn't posses adherence ability. This proved the correlation
between the production of these enzymes and bacterial adherence ability.
Extracellular proteases considered very important virulence factors
because it was important invasion factors related to bacterial nutrition and
metabolism.

A simple and rapid spectrophotometric method for the determination
of thymol in pure form and in pharmaceutical preparations is described .The
method is based on the color reaction between thymol and 2,6-
dichloroquinone-4- chloroimide (Gibb's reagent) in borate buffer medium
(pH 10) to form a blue indophenol dye with maximum absorption 605 nm.
Beer's law is obeyed over the concentration range of 0.04–16 μg. ml−1with a
molar absorptivity of 18430 l. mol.cm−1and sandell sensitivity index of 0.008
Spectrophotometric determination of thymol in pharmaceuticals with …
18
μg.cm. The results obtained were both precise (RSD) better than 1% and
accurate (average recovery) 100.50%. The method does not resort to
temperature control or to solvent extraction .The method has been applied
further, successfully to the determination of thymol in mouthwashes and the
results obtained are comparable with those given by the standard 4-
aminoantipyrine method.

The study was conducted to reveal the effect of oral administration
of aluminium chloride on spermatogenesis and accessory sex organs in
adult male rats. Aluminium chloride was administrated by oral intubation
daily with two doses 40 and 80 mg/kg. body weight for periods 30 and 60
days for each. The results showed that aluminium chloride at both doses
caused a significant reduction in sperm counts and the percentage of live
sperm, with a significant increased in the percentage of morphologically
abnormal sperm, and a significant reduction in averages of body weights,
head epididymis, testis and prostate gland weights in rats treated with
aluminium chloride at dose 80 mg/kg. body weight during the
experimental period. While aluminium chloride at dose 40 mg/kg. body
weight had no changes in the percentage of the morphologically abnormal
sperm and in the body weight, testis and accessory reproductive organs
weights. Synchronized with the physiological changes, histological
alterations represented by vascular hyperemia, interstitial edema,
multiplication of Leydig cells, coagulative necrosis, hyperplasia and
sloughing of seminiferous tubular epithelium. The results concluded that
administration of aluminium chloride to adult male rats would cause
adverse effects on sexual efficiency.

This study was carried out to evaluate effects of probiotic
(BIOMIN)®
at different doses (0.15, 0.3, 1.5, 7.5, 15 g/kg diet) on some
hematological and biochemical parameters in chickens. The number of
broiler chickens are 48 at one day old Ross kind were used . Results show
that body weight increased significantly (p≤0.05) as probiotic dose, while
both Hb concentration and PCV% are not changed in relation to probiotic
doses. Reduction of serum cholesterol level was clear and dependent on
the contrary changes in both serum protein and urea, which inceased with
Effects Of Different Doses Of Probiotic (Biomin)® On Some Hematological …
46
dose elevation, on the other hand, serum glucose level changes unclearly
in different dose groups. Finally results show very high dose (15 g/kg
diet) of probiotic (BIOMIN)® lead to death of all chickens in this group at
the 3rd day of experiment.

Wind speed was studied in four locations in Ninava Governorate
which are Mosul, Rabea, Sinjar and Talafar for the period (1980–2002).
The mean monthly values, the standard deviation, the coefficient of
variation and the time series for the wind speeds was studied during this
period in all locations.
Wind power density and Weibull distribution were found in the
different locations. The results were shown in tabulated and graphical
form. The results indicate in Mosul, Rabea and Sinjar slightly downward
trend in the time series of wind speed while in Talafar no trend was
observed also a reasonable agreement was obtain between actual data of
wind speed and that calculated by Weibull distribution.

In this research we have to study the effect of microwave radiation
on some electrical properties of the wet bone, it is included to measure
the electrical current and potential in bones before and after exposure to
microwave radiation. The microwave uses a near-field focused energy
Effect of microwave on some electrical properties of wet bones.
76
(90-180 watts at 2.45 GHz frequency). Its found that the value of
electrical current and potential produced in the bone exposed to
microwave radiation are more than the value of electrical current and
potential for unexposure bones, while the resistance is less under the
same conditions. These differences in current and potential may be
attributed for bioelectrical sources such as blood which contains
electrically charged ions and the separation of ionic charges will produce
an electromotive force, which is a voltage between points in fresh bone.
The generated ionic current in blood which regarded carrier of the
basic elements to buildup of bone will stimulate and increase the callus
material around the fractures in bones and hence improves and speeds its
healing.

This paper conclude the study of the weights of points and lines of
(k,n)-arcs from
L0  1
until
L0  381, since the number of points and lines
of this plane is very large, so we divide this search in to three parts.
Classification of some arcs of type (m,n) in PG(2,19).
84
The first part contained the existence of these arcs from
L0  1
to
L0 171
and we show that when
L0 171
the (210,39;f)-arc of type
(20,39) exist and all the other cases from
L0  1
to
L0 170
does not exist.
In the second part we studied these arcs from
L0  340
to
L0  381
and we saw that there are two types of these arcs when
L0  342
and
L0  361
which are respectively (39,21;f)- arc of type (2,21) and (20,20;f)-
arc of type (1,20), then proved the theorem of these special cases are
given.
Finally in the last step we prove that (k,n;f)- arc of type (n-19,n)
does not exist in PG(2,19) for all values of
L0
from 362 to 381.

Klebsiella pneumoniae were isolated in a percentage of (20%) of
rhinitis which the identification tests were carried done.
The tests for virulence factors that could be produced by these spesies
were also done and resugts showed that all spesies have the ability of
serum resistance, successful adhesion on respiratory epithelial surfaces,
heamagglutination of RBCof human, rabbit, sheep, capsule production,
and the Lipopolysaccharides which isolated from bacteria have toxic
effect on laboratory mice when injected in peritoneum

tory organ and it`s histological structure in the embryos, Larvae and
adults of urodele amphibians Salamander Neurergus crocatus crocatus cope.
The study includes the morphology of the developmental stages at so the
level of light microscope. The first sign of olfactory organ development in
the Neurergus crocatus crocatus was the appearance of olfactory placode as
one thickening on each side of the ectoderm opposite to prosencephalon at
28 stage. At early embryonic stages the olfactory placode appeared in the
form of horse shoe. Progressively the olfactory pits appeared and become
more deep. At late embryonic stage cells of olfactory placode more
differentiated and appeared in multitypes. Some cells more packed and
formed pyramids mass at the olfactory pit axis. The olfactory pit became Vshape. The axons of bipolar neurons differentiate, as well as the supporting
cells and it's sensory tricheae well obvious. As the development progressed
the two edges of olfactory pit approximate to each other anteriorly. While at
the embryonic stage 39 the olfactory sac appeared. In addition the internal
canal primordium of the external naris also differentiated. At the larval
stage, the supporting spindle cells with their surface cilia well developed. In
addition the main olfactory cavity differentiated as protruded chamber and
several invagintions appeared in it's internal epithelium, as well as the
vestibule and olfactory canal well developed. At stage 45 the vomeronasal
organ differentiated as adiverticulum from the main olfactory cavity.
* البحث مستل من رسالة ماجستير لمباحث الثالث بأشراف الباحثين األول والثاني
دراسة مراحل اإلنماء الجنيني والتركيب النسجي لعضو الشم في البرمائي الذيمي. ..
11
The final larval stage characterized by the differentiation of receptor
epithelium of vomeronasal organ and the olfactory organ flattened. At the
olfactory organ of metamorphic stage the vistibule contacted with thick
olfactory epithelium of the main olfactory cavity and the epithelium of
cavity differentiate into serial transversed olfactory ridges with olfactory
valleys in between. The number of ridge was 2 dorsally and 4 ventrally and
appeared in radial pattern. In the adult mature stage several changes
occurred, which include differentiation of protruded chamberes of main
olfactory cavity, differentiation of vomeronasal organ the conduction of
main olfactory cavity with external and internal naris. The vomeronasal
epithelium extends to about 30% of the olfactory cavity, the large olfactory
ridges decreased into miniridges and the cavity of lining epithelium
appeared some- what smooth, the supporting ciliated cells were well
obvious. The middle cavity of olfactory organ disappeared at all
developmental stages.

This search was conducted to evaluate Salmonella typhi sensitivity
towards some antibiotics used for treatment typhoid fever in Nenavah
province, the results showed that there is a clear differences in sensitivity
of local isolates towards the used antibiotics compared with standard
isolate. these isolates were sensitive to Ciprofloxacin and Norfloxacin,
but effect of Tetracycline on both local and standard isolates was
intermediate, as for Chloramphenicol there was a differences in
sensitivity towards it, where the local isolates were sensitive, whereas, the
standard isolate was resistant. One of the important that the three local
isolates were resistant to the rest of other antibiotics Trimethoprim,
Amoxicillin, Ampicillin, Rifampin in spite of the importance of this
antibiotics prescribed by the physicians of Nenavah province for Typhoid
fever Treatment.

The effect of the concentrations 0,1, 2, 3 and 4 mg/ml of alcoholic
extracts of cress seeds )Lipidium sativum( on the growth and dry weight
of root–rot fungi of sesame plants, Pythium aphanidermatum, Fusarium
solani and Macrophomina phaseolina indicated high significant
inhibitory affect as compared to the control. M.phaseolina was mostly
inhibited than other fungi when 4mg/ml w, 86.66 and 78.26%
respectively. Antagonistic test of the bacterial biocontrol agent Bacillus
cereus showed high inhibiting effect on all tested pathogens with the
maximum inhibition 80.8% on M. phaseolina. Culture filterate of B.
cereus also showed a highly inhibiting efficiency to the growth and dry
wieght of the biomass of all pathogenic fungi with the increase of
concentrations 10%, 20%, 30% and 40% (v l v), With the 40% was
mostly effective on M. phaseolina by the ratio of 72.22% and 83.90%
respectively.
The best inhibition was achieved with the use of combination of 4
mg/ml of alcoholic extract of Cress seeds and 40% of culture filterate of
Bacillus cereus. It showed synergistic inhibitory effect on all pathogenic
fungi used, that exceeded the effect of each of the plant extract or culture
filterate of the bacteria separtely.

Results of the present study revealed significant effect of aqueous
extracts of the leaves of Teucrium polium; the fruits of Citrus aurantifolia
and Capsicum annum at the concentrations 5, 10, 15, 20, 25 and 30
mg/ml for T. polium ; the concentrations 2.5, 5, 7.5, 10, 12.5 and 15
mg/ml, for C. aurantifolia and the concentrations 1, 1.25, 1.5, 1.75, 2 and
2.25 mg/ml, for C. annum on the viability of the protoscoleces of
Echinococcus granulosus of sheep origin in vitro. Hence, the
concentration 30 mg/ml for T. polium causes death of all protoscoleces in
30 minutes, by the same token, the concentration 15 mg/ml of C.
aurantifolia causes the same effect in 45 minutes, while the concentration
2.5 mg/ml of C. annum reduces the viability of the protoscoleces to 4.0%
in 60 minutes.

This study was conducted to evaluate the effect of diet
supplementation with zinc and copper on some biochemical parameters in
rats and susceptability to induction of diabetes by alloxan, and there
effect to delay diabetes induced by alloxan. Albino male rats divided
randomly into several groups.group one served as control. Group two and
three given diet contain 15, 25 mg zinc /kg diet respectively, group four
and five recieved 1,3 mg copper /kg diet respectively, for two weeks of
treatment. Other group induced diabetes and let without treatment and
considered as a diabetic control group. Results Showed a significant
decrease in both serum glucose and cholesterol levels in comparing with
control group, with an a significant increase in levels of both
malondialdehyde and glutathione, the results also showed that both zinc
and copper treatment delayed the induction of diabetes by alloxan. We
conclude from this work that both zinc and copper have important effect
on studied parameters and on susceptability of diabetes induced by
alloxan.

Electrical conductivity and seeback effect studies of soft ferrite
Ni0.2Zn0.8Fe2O4 as a function of annealing temperatures range (800 –
1200)oC. The electrical conductivity and seeback effect measurements are
studied from different temperatures between 23oC to 323oC. So the
seeback effect measurements show that the most carrier charges for this
material are positively charges (i.e at p-type material). Also the electrical
conductivity measurements increased with increasing annealing
temperature tilled to 1100 oC which means the predominantly due to the
hopping of electrons and holes between Fe2+ and Fe3+ ions at the
octahedral sites and Ni2+ and Ni3+ ions at the tetrahedral sites. Therefore
the above results of these measurements strengthened through expense
bulk density and activation energies, reached at maximum annealing
temperature at 1100 oC degree.

The aim of this paper is to study the effect of the magnetization of
water on the rotation of the plane of polarization of He-Ne laser in optical
active water. Firstly the magnetic water is prepared and several properties
such as refractive index, absorbance, transmittance, pH and ppm are studied
and compared with natural water.
The effect of the magnetization of water on the rotation of the plane of
polarization of laser light in optical active water is also investigated. Three
samples of optical active water are prepared; optical active water, activated
water and then magnetized and magnetized water and then activated by
adding glucose to the water with different concentration. Verdet constant of
the samples are also determined.
The results of this paper show that all the properties of the magnetic
water are affected by the magnetic field.
The main conclusion, which is the first time to our knowledge,
indicates that the sample (magnetized water and then activated) gives 18%
more in the rotation of the plane of polarization of He-Ne laser in low
concentration compared with activated water

ZnO thin films on glass substrate were prepared by chemical vapor
deposition (CVD) using zinc acetate as a starting material. Electrical
properties of the films deposited at various substrate temperatures and
sample position inside the chamber were investigated. Maximum
conductivity is obtained for the film deposited at 550C and at a position
16 cm far from the inlet side of the gases.

The focus of the present research is on the issue of specified of the
earth rocky geologic layers through the use of a Artificial Neural
Network called the Adaptive Resonance Theory Network (ART1).
The research discuss the ability of the Artificial Neural Network to
specified the stratum rocky geologic to the earth through to enter
specifications and characteristic of spring layer, since the network of
adaptive Resonance Theory Network (ART1) have property to work style
to make similar to human Brain work wherever in keeping the old A
knowledge of data when a new information added to any field.
The result show the capability the Adaptive Resonance Theory
Network (ART1) to make the limitation the earth rocky geologic layers in
fast and qualified Technique.

The purpose of this research combining the algorithm of
superposition with multiple shooting and interpolation designing for
solving Stiff linear boundary value problems in ordinary differential
equations. The new Technique is used for solving Stiff linear problems
with very high efficiency

The object of the research is explaining the negative effects of
computer games on boys, and the research sample had been chose from
schools pupils in the range of age between (12 to 20) years by using
questionnaire which had been distributed on (100) pupils in different
levels. The results of statistic analysis were referred to economical,
educational, health and behavioral adverse effect.
The researcher suggests two prophylactic programs to cut down the
prolonged hours that the boys spend to play in front of the screens. The
researcher had also got certain approaches and results to avoid the effects
of these games which fill boys 'life without feeling behavioral,
economical and health danger and loss of money and time

The research deals with the concept of hiding information in one of
the media where the 'Least Significant bit' which is one of the methods of
steganography is used. Satellite images were chosen as a means of hiding
because they have certain features and characteristics which make them an
effective method for hiding. The satellite data have more than one taken
image of the same land with different spectra, and each image is called
'band'.
Distributing the text on these bands and combining them to form the
false colour composite image make the possibility of getting a sequential
complete text complex. If hackers could get such images, it would raise
suspicion about the area captured by the satellite while this area has nothing
to do with required hidden information and transforming them to the second
part.
The research aims at developing the hiding process by using satellite
image features which depend on the method of distributing texts on spectral
bands of the satellite image rather than hiding it in one image.

Most of houses' owners try to increase the houses' rental prices
from time to time. However this increase will be taken place, but the real
income of the owners declines, that is because of many different costs
that the owner will carry out.
This research includes the following question "How long should
the houses' owners rise the houses' rental prices?"
The Economic Optimal Quantity size (EOQ) formula used to
derive two equations, first for houses have constant value, second for
houses have increasing market value during the time. Moreover, these
two equations determine the increase rate of houses' rental price and the
optimal period of changing the rental price for both situations.