In this paper,a prey-predator model with infectious disease in predator population
is proposed and studied. Nonlinear incidence rate is used to describe the transition of
disease. The existence, uniqueness and boundedness of the solution are discussed.
The existences and the stability analysis of all possible equilibrium points are
studied. Numerical simulation is carried out to investigate the global dynamical
behavior of the system.

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The effect of (Di-Ammonium Phosphate DAP) (P21%), as plant fertilizer on content of the Saliva officinalis. Total flavonoid as an important active constituent was investigated in the present study. Three samples (F1, F2, and F3) of Saliva officinalis were grown in soil treated with DAP (100, 200, and 300) kg/hector respectively. Another two samples were studied: F0 as a plant sample grown in soil untreated with fertilizer and F4 as wild type obtained from market. Total flavonoids were estimated Quantitatively by Rutin standard curve and qualitatively by TLC method in corresponding to standard flavonoids. Results showed that different concentrations of DAP treated soil affected flavonoid contained of the Iraqi cultivated Saliva officinali

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The protective effect of red cabbage extracts against hyperthyroid induced by Lthyroxine
in male rabbits was studied. Forty animals were divided randomly into
four groups. Group A: Healthy rabbits, Group B: Healthy rabbits received (100
mg/kg.b.w) red cabbage extract, Group C: hyperthyroid rabbits were given an oral
dose of (20μg/kg b.w) L-thyroxine once daily for four weeks to induce
hyperthyroidism and group D: hyperthyroid rabbits received red cabbage extract. At
the end of the experiment, blood samples were taken for biochemical analysis. The
obtained results revealed that hyperthyroid rabbits induced by L-thyroxine had
significant increase(P<0.01) in serum levels of triodothyronine (T3), Thyroxine
(T4)

Two simple, sensitive, accurate and economic methods A and B have been developed for the quantitative estimation of vancomycin hydrochlorid (VHC) and its formulations using another two drug compounds as a coupling reagents.The proposed methods are based on a coupling reaction between VHC and diazotized procain (method A) or diazotized sulphacetamide sodium (method B) in alkaline medium to form intense yellow, water-soluble dyes that are very stable and have a maximum absorption at 447 and 439 nm for methods A and B respectively. Regression analysis of Beer’s law plots showed good correlation in the concentration ranges 1-28 and 1-45 μg ml-1 for methods A and B, respectively with a molar absorbtivity of 4.605×104 L mol-1cm-1 and 4.516

In this paper a two dimensional numerical simulation have been applied using
MATLAB program for generating Fraunhofer diffraction pattern from different
apertures. This pattern is applied for three types of apertures, including, circular,
square, and rectangular functions, and it's could be generated any wavelength in the
visible light. The studying demonstrated the capability and the efficiency of optical
imaging systems to observe a point source at very long distance. The circular
aperture shows better results across the shape of Fraunhofer pattern and optical
transfer function (otf). Also, the minimum values of the normalized irradiance of
different diffracted apertures have been computed at different dimension

Transition strengths 
2
w.u. M(E2) for gamma transition from first excited 21
+states
to the ground states that produced by pure electric quadrupole emission in even –
even nuclei of 58Ce and 60Nd have been calculated as a function of neutron number
(N). The life times for 21
+ excited states together with the intensities of γ0- transitions
measurements are used in calculations. The results thus obtained have shown that;
the nuclei with magic neutron number such as 58Ce140 and 60Nd142 have minimum
value for 
2
w.u. M(E2) . The reduced transition probabilities B(E2) are also
calculated and compared with the experimental data and other theoretical models.
PACS:- 27.60-j, 23.20-g, 23.20.Ck,

The crystals protein of local isolate Bacillus thuringiensis were purified by using
aqueous two phase system method in two steps ; the first 94% of crystals protein and
spores were separated from cell dibbers by using 14% g/ml ammonium sulphate and
4% g/ml of Polyethylene glycol 6000 at pH=7 with separation time of 30 min.
While in the second step, crystals protein were purified from spores by using a
system consisted of 8% g/ml Dextran 60000-90000 and 9% g/ml of Polyethylene
glycol 6000 at pH=7 with separation time of 2.5 h. the a final yield was 70.6% with
purity of 92%

This work is a contribution to the global interest of scientific community in the field of cleaning the environment from drug and antibiotic residues which lead to the development of new generations of bacteria with improved resistance to antibiotics. The sorption of oxytetracyclin, OTC, on an Iraqi certified clay mineral, the montmorillonite, is used as indicative for the success of the used treatments. Batch equilibration experiments were carried out to follow the sorption behavior of OTC on the clay. The concentration of OTC was determined by spectral absorption at 360 nm which presented excellent correlation with high performance liquid chromatography, HPLC, method over a wide range of concentration (R2 = 0.977). After equilibration

The present study Investigate the study on the causes of diarrhea epidemic in the province of Baghdad and some northern governorates since been collected 140 stool samples of water of different ages for the period from the beginning of the month of October 2007 to the end of August 2008, after culture ,microscopic biochemical testing diagnosed (113) bacterial isolates was among them ( 66) isolation rate of (% 47.14) only belonging to Vibrios cholera, Vibrio cholerae are divided by (58) in a rate (% 87.87) and returned to the pattern under serum Inaba, and (5) isolates, a rate (% 7.57) and returned to the pattern under serum Ogawa, all belonging to the pattern of bio-El-Tor and three isolates by (4.54%) belonging to non-cholera vibrios NA

Issacs [1] shows that if
*  :GF is a homomorphism (
* F is the multiplicative
group of the field F) and G is a group, then one can define (g)  ((g)) which is
an F-representation of G of degree 1 affords  as character. [2,3,4] inspires us to do
the following: given a homomorphism
* f :GG then we define a representation of
G by the homomorphism f from a given F-representation
* *  :G GL(n,F)
of
* G as
*    f . We study this kind of representations and their associated
characters.

Based on the conjugacy condition often which is satisfy by quasi-Newton method, the
new version of DY nonlinear conjugate gradient method is proposed, which is descent
methods even with inexact line searches. The search direction of the proposed method
has the form k k k k k d  g  d 1 1 1   . When exact line search is used, the proposed
method reduce to the standard DY method. Convergence properties of the proposed
method is discussed. Numerical results are reported.

Maize (Zea mays L.) seeds were subjected to accelerated aging treatment for, 3,
7, and 14 days at 45 ±1 C° and 100% relative humidity. These artificially aged seeds
were compared to control (Unaged seeds) for evaluation of vigor in seeds.
Accelerated aging of Maize seeds up to three days had significant effect on
germination percentage & solute leakage. However, further increase in aging period
caused an increased in solute leakage and a decrease in germination percentage.
Germinability was lost completely at 14 days of accelerated aging. In addition, the
reduction in germination percentage was correlated with decrease in seedling length,
germination speed index, seed vigor index, seedling fresh & dry we

Enterotoxin produced by local isolate of Yersinia enterocolitica was purified
from the culture supernatant .The purification procedure involved precipitation by
ammonium sulfate (50% saturation ) and analyzed by sodium dodecyl sulfate- poly
acrylamide gel electrophoresis (SDS-PAGE), ( 159.4) fold purification was achieved
with yield of (17.9)%. The molecular weight of purified enterotoxin was 11,000
Dalton.
The purified enterotoxin was heat stable at 100 оC for 15 min, and the activity was
lost after incubation with 3mM dithiotheritol as reducing agent. Enterotoxic activity
of Y. enterocolitica was neutralized by antiserum from mice immunized with the
purified enterotoxin .The inhibitory activity of Eruca sati

Structural and mechanical properties for lead-tin alloy have been studied by
employing the X-Ray diffraction methods and Vickers microhardness test. Three
samples were obtained, the first standard lead- tin sample, the second form recyleled
ingot of the alloy and the third prepared from the powder of recyeled ingot that was
vacuum capsuled and treated at 800 oC for 3 hours.The X-Ray diffraction spectra of
both recycled ingot and prepared alloy showed the appearance of a new stable phase
of tin oxide (SnO) with the tin (Sn) phase appear in preferred orientation dictated by
the technical route of preparation. Furthermore the grain size of lead and tin phases
were nearly identical though in the tin oxide phase, the g

The nucleon momentum distributions ( NMD) for the ground state and elastic
electron scattering form factors have been calculated in the framework of the coherent
fluctuation model and expressed in terms of the weight function (fluctuation function).
The weight function has been related to the nucleon density distributions of nuclei and
determined from theory and experiment. The nucleon density distributions( NDD ) is
derived from a simple method based on the use of the single particle wave functions of
the harmonic oscillator potential and the occupation numbers of the states. The feature of
long-tail behavior at high momentum region of the NMD has been obtained using both
the theoretical and exper

The study aimed to isolate and diagnose types of Fusarium oxysporum from the roots of cucumbers and melons plants infected , from the fields of Al- Ssaouira, Al-Numaniya and Al-Hai in Wasit Governorate , and the possibility to control it by using the bacteria Bacillus subtilis and potassium phosphate concentration (500) mg / liter of water. Were obtained on (19) pure isolates of fungus F.oxysporum f.sp. cucumerinum and (11) pure isolates of F.oxysporum f.sp. melonis . The isolate F.oxysporum f.sp. cucumerinum (FOS 9) showed a high virulence than the rest isolates , white the isolates F.oxysporum f.sp. melonis (FOM 2) showed a high virulence than the rest isolates . The bacteria B.subtilis showed high antibiosis activity against F. oxyspo

Ground Penetrating Radar (GPR) method has been used in the province of Babylon, the ancient city  (constituted mounts zoona) archeological site The study area is located South of the city of Hilla by 40 km   between longitudes 44˚ 24΄ 40˝ E to 44˚ 27΄ 00˝ E, and latitudes 32˚ 31΄ 10 ˝ N to 32˚ 33΄ 00˝ N,

The type of GPR that used in the survey fieldwork was of Malå Geoscience / Sweden type (RAMAC /GPR). The constituted mounts zoona  district  are surveyed using Seventy – four  parallel profiles trending S-N ,N-S , E-W and W-E using the available antenna 160 MHz and 450 MHz, with Five meter spacing between each other are acquired the round-trip survey was conducted for ease and speed of

اتّجهت رغبتي لدراسةِ النقد الصرفيّ بحثاً مستلاً، لما يتمتع به هذا المستوى من مستويات البحثِ اللساني من فائدةٍ قصوى ومهامَّ وظيفيةٍ أنيطت ببناءِ الكلمةِ، تتداخل وتترابط بمباحث الصوتِ، ومباحث النحو، ومحاولةِ الوصولِ إلى منهجٍ صرفيّ متكامل، يقربُ من ذهن المتلقي ويقدّمُ مفاهيم ونظريات سلسة القوامِ تنتجُ عجلةَ البحثِ إلى المامِ.

وقد تناولت عدداً من الأمثلة النقدية من الأفعالِ في صحاح الجوهريّ، بالدراسة