JOURNAL OF EDUCATION AND SCIENCE

New cobalt (II) complexes with mixed ligands including
benzilbis(semi- carbazone)-BscH2 and amino acids-AH {glycine (GlyH)
or alanine (AlaH) or cysteine (CysH) or cystine (CyH) or tyrosine (TyrH)
or histidine (HisH) or threonine (ThrH) or proline (ProH)} have been
prepared and characterized physiccochemically. They have been found to
have general formulas [Co(BscH2)(AH)(NO3)](NO3) or [Co(BscH2)(AH)](NO3)2
and [Co(BscH)(A)] in neutral and basic medium, respectively (where AH =
any of the amino acid, A = deprotonated amino acid, BscH =
deprotonated BscH2 ligand). The results supported that the complexes
had high spin octahedral geometries.

In this paper the synthesis of substituted 3-phenyl-4-styryl and
3-phenyl-4-hydroxy coumarins is reported. The substituted
benzaldehydes were treated with 2-hydroxy acetophenone to give the
corresponding chalcone, the hydroxy chalcone then reacted with phenyl
acetic acid in pyridine and phosphorus oxychloride to give the
intermediates esters, which then cyclized to 3-phenyl-4-styryl coumarins
by their reaction with potassium hydroxide. Substituted methyl salicylate
were converted to the esters by their reaction with phenyl acetic acid and
phosphorous oxychloride in pyridine, followed by cyclization with
potassium hydroxide in pyridine to give 3-phenyl-4-hydroxy coumarins.
The structures of the synthesized compounds were established by
physical and spectral methods.

A series of -arylidene cyclohexanones (1-4) had been prepared via
Claisen-Schmidt condensation, while other series of N-arylidene
benzylamines (Schiff bases 5-10) had also been synthesized by equimolar
addition. The 1,3-anionic cycloaddition of Schiff bases to -arylidene
cyclohexanones under basic conditions afforded the corresponding spiro
pyrrolidines (11-23). The structures of the products are supported by
valid spectral data and physical properties. Theoretical data had been used
to support the suggested mechanism.

A simple, rapid and highly sensitive spectrophotometric method
has been described for the determination of dipyrone in a bulk and in
dosage forms. The method depends on the organic oxidative coupling
reaction of dipyrone with m-toluidine in the presence of potassium
hexacyanoferrate (III) in aqueous solution to form purple product
measured at 530 nm. Beer’s law is obeyed in the concentration range 0.4-
10.0

g.ml-1 with accuracy (average recovery) of 99.71% and precision
(RSD) is less than 2%. The molar absorptivity is 40770 l.mol-1
.cm-1 with
LOD 0.051

g.ml-1
and LOQ 0.167

g.ml-1
. The analytical results agree
favourably with official method (iodimetric method) and also with
certified values.

Treatment of cinchoninic acids (1a,b) with allyl bromide afforded
compounds (2a,b), and the hydrolysis of (2a) gave the 2-(4`-
allyloxyphenyl) cinchoninic acid (4) . Glycedylation of compound (1a)
afforded compound (3a), while glycedylation of compound (1b) gave
compounds (3b) and (3bb). The acetylation of the acids (1a,b) gave the
acetyl derivatives (5a,b) . Benzylation of the amino compound (1b) with
m-fluorobenzyl chloride afforded compound (6) . The reaction of
compounds (1a,b) with allyl isothiocyanate or amino compound with
carbon disulfide afforded thiocarbamate (7a), thiourea (7b) and
dithiocarbamic acid (8) which is used as a synthone to prepare allylic
ester of dithiocarbamate (9) respectively . Finally Compound (1b) can be
transformed to a glycene derivative of cinchoninic acid (10). The
synthesized compounds were confirmed by the physical and spectral
means in addition to the functional groups systematic identification .

The research aimed to study the effect of Diols on modification of an
asphaltic materials which could be used as a binder for paving material
obtained from Qaiyarah asphalt. 0.5-5 wt.% of Diols (ethylene glycol
,diethylene glycol &mixture of them) were used to modify Qaiyarah
asphalt binder .The performance of modified asphalt was investigated by
rheological properties of asphalt.
Generally, the rheological properties (softening point, penetration point
& ductility) showed decreasing of softening point, increasing of
penetration and ductility with increasing of Diols ratio .In another aspect
about 3wt.% of Diols were dissolved in Qaiyarah asphalt molten.

The present study showed the possibility of using a mixture of
honey , Nigella sativa oil and propolis in the treatment of experimentaly
infected rats occurred after induction of Pseudomonas aerugiosa in
aburned area on the thigh at a concentration of 108
cfu / ml , the abscess
appeared after 48hr .
The study showed that mixture of honey, Nigella sativa oil and
propolis showed a good activity in the treatment of the abscess with in 48
– 72 hr ., compared with the antibiotics (Gentamicin , ampicillin) which
gives the same results with in 96 hr

In the geodesy science, the heights determined by Global
Positioning System (GPS) measurements are related to the perpendicular
distance above the reference ellipsoid, while heights of Mean Sea Level
(MSL) are determined with respect to geoid. The datum that defines the
MSL (also called the geoid) is a complex surface that requires dense and
accurate gravity data to define its shape.
Determining the geoid in Iraq is not an easy matter, mainly
because of the lack of necessary data at the present time.
In the present simple study, ellipsoidal heights were derived from
GPS measurements )with respect to WGS84 reference ellipsoid) at
specific locations inside the campus of Mosul University. Orthometric
heights (MSL) data of the test locations were then obtained according to
geoid undulation (geoid height) given by the global model of the geoid
(The Earth Gravitational Model 1996: EGM96). From the result of the
measurements, a geoid map was produced for the study area.
This study is being considered as primary attempt, so later in the
future the whole geoid separation of Iraq can be measure or part of Iraq, I
hope so.

High power bar laser diodes, with CW optical power output were
studied experimentally. A novel mounting was designed to bring the
coolant as close as possible to the laser bar in order to improve the bar
laser diode characteristics. Thermal properties can influence significantly
device characteristics, affecting wavelength, maximum output power,
threshold current, slope efficiency and operating lifetime. Stable emission
(803 nm) of the bar laser diodes was maintained during the investigation
since it is very important for different kinds of applications. A high
external quantum efficiency of (1.66) and a characteristic temperature of
(106 oC) were obtained in our experimental setup. A reliable and high
performance IR bar laser diode source was achieved experimentally.

Thin solid films of SnO2 were deposited by chemical vapor
deposition (CVD) method on glass substrate at 450C and 2.5L/min.air
flow rate. Deposited films were annealed at different temperature
(200,300,400,500) C in air for 60 minutes.
Structural properties have been studied for annealed and unannealed
films. It was found that the films have polycrystalline structure with grain
diameter(190-230)A depend on annealing temperature. And the crystal
structure is tetragonal with lattice constants (a=b=4.782 ,c=3.233)A.
Optical properties also studied for annealed and unannealed films using
UV-visible spectroscopy. The transmission spectra showed higher
transparency over the visible wave length region with maximum value
(85-95)% depend on annealing temperature. Absorption edge energy is
increased by annealing temperature from (3.93 to 4.1)eV while Optical
energy gap is not affected by annealing and it is found to be (4.17)eV.

In this paper we investigate the existence and approximation of the
periodic solutions for certain systems of nonlinear integro-differential
equations, by using the method of successive periodic approximation of
ordinary differential equations which is given by A. M. Samoilenko. Also
these investigation lead us to the improving the extending the above
method.

This paper has a dual purpose. One purpose is to introduce a
method consists of repeatedly applying Riemann-Liouville operator of
appropriate order until the equation
AD y BD y Cy(x) 0
q α
+ + = , (
m−1 α  m
) , (q is integer) is
transformed into an ordinary differential equation.A second purpose is
to apply the Adomian decomposition method for the solution of
fractional differential equation an alternative method of Laplace
transform.

Similarity measures are an important factor in the Content-Based
Image Retrieval (CBIR). This paper finds the most efficient similarity
measure from four image similarity measures. Related work on (CBIR)
indicated that these measures have significantly improved the retrieval
performance. These measures are the Chi-Squared, The Weighted Mean
Variance distance (WMV), The Euclidean distance, and Cosine distance.
A sample of 50 colored images is selected from CALTECH visual
database. These images were transformed to (HSV) color space. Color
features were extracted; these features are the color moments.
Experimental results of the proposed work show that the Euclidean
distance measure is the most efficient measure for color based image
retrieval.

In this paper a new technique for Aitken extrapolation method is
used to solve F.I.E.
st 1
k. This method requires many reiterative steps.
Therefore, it depends on the iterative method which results in an increase
in the rate of approximation of the solution and simultaneously it
minimizes the number of the steps in comparison with the outdated
successive method and iterative method itself.

In this paper we used the improved least square method presented
to solve Fredholm integral equation of the second kind .This method
combines, forward and backward factorial polynomial and quasi
orthogonal polynomial. These polynomials improved the above method
and getting it to a strong convergence property .The numerical results are
agreeable in comparison with exact solution

In this paper we study the solvability conditions for a system of
Nonhomogenous ordinary differential equations of the first order with
boundary conditions by using the method which is given by [3,4].

In this paper we study the existence and uniqueness solution of
second order nonlinear integro-differential equations with boundary
conditions, by using the Picard approximation method which is given by
4. Where we extend some results gained by
3.

The Hosoya polynomials of Steiner 3-distance of hypercube graphs
Qm
, and of the square of a path,
2 Pt
, are obtained in this paper. The
Steiner n-diameters of
Qm
and
2 Pt
are also obtained.

Measurement the depth of ion implantation is considered to
be one of the important subject in physics , which has been employed by
using SIMS and RBS methods. In this research Electron spectroscopy of
chemical Analysis (ESCA) technique has been used to determine the
depth of indium ion implantion in P-N Junction silicon semiconductor
sample , which has been prepared by using pulse dense plasma focus .
Such determination was depend on the chemical shift of the silicon
spectrum. The prepared sample was scraped until the above noted
chemical shift was disappeared. From this technique the depth of indium
doped in the silicon sample was found to be about
450 A° .

This study included evaluation the relationship between cholesterol
and antioxidants level in the human with hypercholesterolemia .
Blood of 33 samples were collected from patients with
hypercholesterolemia 18 male and 15 female with age ranging between
(42 – 60 )year . 20 samples of blood were also collected from human with
normal cholesterol (10 male , 10 female ) , this group considered the
control group .
Cholesterol , Vitamin C , Glutathione , SOD activity , peroxy
nitrite ,and albumin levels , were measured in the serum of both groups .
The statistical results showed a significant increase (p < 0.05)
in the SOD activity and peroxy nitrite concentration in the human
with hypercholesterolemia for both sex compared with the control
group , while insignificant increase was showed in the albumin levels in
the hypercholesterolemia patients compared with control group .
The results also showed a significant decrease (p < 0.05 ) in
vitamin C and glutathione levels in the patients with
hypercholesterolemia for both sex compared with control group .
This study demonstrated that there was a relationship between
antioxidants levels and hypercholesterolemia patients , male and female
include (Vitamin C , Glutathione , Peroxy nitrite , Superoxide Dismutas
enzyme ).

Forty isolates of Pseudomonas were collected from different
human clinical speciemens (Urine, Stool, Sputum, Pus, Blood and Ear
swab) . They were microscopically examined and their identification was
confirmed by API 20E test which showed that all of them belonged to the
species Pseudomonas aeruginosa .Their response to eight antibiotics used
in this study was tested .There were differences in pattern of their
resistance. Depending on their source of isolation six isolates were
chosen to determine the transposition property of some antibiotic
resistance genes carried on plasmid DNA of the chosen bacterial isolates.
It was found that the isolate from ear infections contained transposon
with a gene for amplicillin resistance on the plasmid DNA . These genes
had the ability to jump from its location on the plasmid DNA to the
chromosomal DNA of the laboratory strain E. coli JMP294 .

This research was carried out to study the effect of aqueous
extracts of the residues of two weeds Avena fatua L. and Cyperus
rotundus L. on seed germination and growth of two barley
cultivars(Aswad Mahaly, Arevat).
Laboratory experiments were conducted to investigate the effect of
aqueous extracts of residues and soils collected from under neath the
weeds on seed germination, plumule and radicle length and their dry
weights .
Green house experiments were conducted to study the effect of
aqueous extracts on germination and growth of both barley cultivars.
Results of the laboratory experiments showed that the aqueous
extracts of Avena fatua L. residues caused reduction in seed germination
and growth while the aqueous extracts of Cyperus residues L. increasing
growth, plumule length and dry weight but caused a little reduction in the
radical length and its dry weight in comparison with the control.

This study included the use of hydrogen peroxide 0.5% in drinking
water to induce an oxidative stress in male rats and asses the ability of
the different concentrations of taurine for protection or prevention from
the oxidative stress.The following parameters in serum during 10, 20 and
30 days were measured in the serum: vit. C, vit. E, glutathione,
malondialdehyde, SOD activity, peroxynitrite, albumin, selenium, zinc
and copper
Fourty male rats (with age of 3-4 months and weight of 300-400
gm) were divided into 4 groups depending on the body weigh: group [1]
as a control group received drinking tap water, group [2] : treated with
H2O2 0.5% in drinking water, group[3] : treated with H2O2 and taurine
0.5%, group[4] : treated with H2O2 and taurine 1% . Hydrogen
peroxide treatment revealed a significant reduction in the vit C, vit E,
GSH, albumin, Se, Zn and Cu levels, and a significant increase in the
MDA, peroxynitrite and SOD activity levels in the serum for the most of
the treatment periods compared with control group (P<0.05).
The different concentrations of taurine tretment revealed a
signifigant effects in the protection from the oxidative stress induced by
H2O2. The effects of taurine ratio 0.5% were significant on the serum
levels of vit C, SOD, peroxynitrite, Se and on the MDA level in the
serum. The taurine 1% ratio produced maximum effects on vit E, GSH,
albumin, Zn and Cu levels in the serum.

In this paper we investigate the existence and approximation of the
periodic solution for a system of nonlinear integro-differential equations
of Volterra type. The numerical-analytic method has been used to study
the periodic solutions of the non-linear ordinary differential equations that
were introduced by A.M. Samoilenko.

In this research we presented approach for recognize printed
English script, in the proposed approach, the technique can be divided
into three major steps. The first step is digitization then do some preprocessing like segmentation to obtain the character image and resize it.
Second, feature extraction, using Fractal Dimension. Finally, the KNearest-Neighbors is used for classification. This method was tested
using 20 patterns for each English character. The sample images were
divided into 15 training and 5 test images. Images in the test set did not
appear in the training sets. This method performs extremely well with
recognition rates 85.3%. This is a very good performance. All of this
demonstrates that the new method is able to handle printed English
character task efficiently. It is a promising technique for recognition
printed English character.