Journal of Basrah Researches (Sciences)

stract:
The study surveys the ability of applying the dispersion relation of diatomic lattice
provided by Awad, using the Nonequilibrium distribution function, to calculate the lattice
thermal conductivity and correction term 'K for (GaN) compound at temperature range
between (5-400K).
The study approaches to a good agreement with the experimental values of the lattice
thermal conductivity, especially in the maximum point of the conductivity curve. Also
the present work shows very small values for the correction term and its percentage
contribution, which could be neglected at wide range of temperature.
We studied the effect of the Awad's temperature exponent m(T) on the lattice thermal
conductivity and the correction term. The results showed the possibility of this function
to deal with the high temperature lattice thermal conductivity of GaN.
The paper studies the impact of the change in the relaxation rates of phonon scattering
by the boundaries, point defects, three phonon and four phonon on the lattice thermal
conductivity for both transverse and longitudinal phonons, where a significant impact on
the conductivity curves, and difference in effectual values have been noted. The study
appoints the temperature range of the activity of the phonon scattering .

In the present article we investigate the nuclear structure of 102 – 118pd using the
Interacting Boson Model (IBM-1). These nuclei assumed to be as medium mass nuclei.
Energy levels of low lying states have been calculated and classified into ground, Beta and
Gamma bands. All the results were compared with experimental data and acceptable
agreement obtained. The reduced electric quadruple transiƟon probabiliƟes B(E2) were
calculated and compared with available experimental data. From the results of calculation it
is found that model is suitable for description of nuclear structure of this nucleus, specially
the collectivity properties.

The interacting boson model with isospin (IBM-3) has been used to study the positive
parity states in (even-even) 28-32Si and 22-26Mg isotopes . The bands structure and symmetry
have been investigated . Special attention is given to the occurrence isospin excitations . To
identify nuclei'
s shape , the energy ratios were calculated . The reduced electric quadruple
transitions probability B(E2), the magnetic dipole transitions B(M1) and branch ratios were
calculated , and these transitions were compared with available experimental data , well as
we study the energy levels for Si and Mg as a function of Majorana parameters which are so
necessary for the identification of the mixed symmetry states .The calculated results are
compared with available experimental data , and they are in general good agreement .
according to our theoretical results , we found that the silicon isotopes belong to the O(6)
limit (Ȗ-unstable), while the magnesium isotopes appears the limits of U(5) and Su(3)
according to IBM-3 limits properties . It was pointed out that IBM-3 is equitably reliable for
the description of spectra and other properties of these nuclei .

The present study was carried out during 2008-2009-2009-2010 ,with in AbuAlkasshab, of Basra, has been studied metal content of five cultivars (Ghannmi
Akhdar,Ghannmi Ahmar .Khikri, Dekel g and Dekel s) of date palm male was found from the
statistical analysis cultivars different in content mineral ,may be there great congruity
between leap year study .At which excellence whoever Ghannmi Ahmar and Khikri in
concentration protein potassium ,continually the first year ,different season at significant
excellence, as overlap effect apparent significant .But pollen grain may cultivar Dekel g
excellence significant concentration most of composite mineral studied which get well leap
year study.

The present study was carried out during 2008-2009-2009-2010 ,with in AbuAlkasshab, of Basra, has been studied metal content of five cultivars (Ghannmi
Akhdar,Ghannmi Ahmar .Khikri, Dekel g and Dekel s) of date palm male was found from the
statistical analysis cultivars different in content mineral ,may be there great congruity
between leap year study .At which excellence whoever Ghannmi Ahmar and Khikri in
concentration protein potassium ,continually the first year ,different season at significant
excellence, as overlap effect apparent significant .But pollen grain may cultivar Dekel g
excellence significant concentration most of composite mineral studied which get well leap
year study.

The study included , alpha amylase was extracted from malt barley local by Imidazol
buffer of pH 7.4 , 0.025 M. Alpha-amylase was purified by number of steps which induced
precipitation by ammonium sulphate saturated concentration was 30- 70 % and dialysis was
performed against the same buffer . The result extract was passed through a column of
sephdex G-100 . Purification was 20.71 fold and enzyme yield was 20.72%. Molecular
weight of alpha – amylase was 40000 Dalton as estimated by SDS –Polyacrylamide
electrophoresis. Optimum pH for activity and stability of enzyme was 5 and (5-7),
respectively . Heat stability of enzyme increased in the presence of Ca++ ione, at a
concentration of 0. 001 M , when the enzyme retained all of its activity when heated to 80 °C
for 20 min while 30 % of the activity remained at 90°C for 30 min . Kinetic constants study
when using starch as a substrate showed that Km was 0.55% and Vmax was 255.75 unit /ml

This experiment was carried out at the College of Agriculture, University of Basrah,
Gharmat Ali during the period from 20/8/2009 up 1/6/2010 with the objective of studying
the effect of activated yeast suspension, and time of cutting and their interaction on ,
certain active substances of Lawsonia inermis L. cv. Minite. The experiment included 6
factorial treatment, in whichs two factor namely activated yeast extract(at concentration of
0, 1, and 2 g/L) and the time of cutting (7/12/2009 and 1/6/2010) was investigated. The
plants were treated by spraying the shoot system three times at one month intervals, A
completely randomized block design was used in a factorial combination of the two factor
and eight replicates . The results were analyzed using the analysis of variance and revised
least significant test was used to compare mean values at 0.05 probability level.
The results may be summarized as follows:
Treatment with activated yeast suspension at 2g/L caused a significant increase in plant
height, number of lateral branches, and number of leaves, comparily with yeast suspension
at 1g/l and the control.
The treatment 2g/L activated yeast extract gave a significant increase in leaf content of
active constituents (Tannins 5.88%, Lawsone pigment 1.1356%) in comparison with plants
treated with 1g/L yeast extract (Tannis 5.60%, Lawsona pigment 1.107% and) and the
control plants (Tannins 5.01%, Lawson pigment 1.019%) second date of cutting had a
significant affect in increasing all vegetative growth characteristics and active constituents.

The success of plant tissue culture as a mean of plant propagation is greatly influenced by
the nature of the culture medium used and the nature of its additional constituents.
Adding these constituents to the nutrient medium is not cost-effective. For that reason
researches focused on finding some alternative constituents that minimize cost of nutrient
medium preparation without affecting its ability to enhance micropropagation processes.
In this study we use plant extracts as a substitute to the commonly used additives in wheat
micropropogation. We add potato and lemon extracts separately at concentrations of 3 and 6
ml/l to the nutrient medium and compare their effects on callus induction and development for
two local wheat varieties named Hashimiah and Maxipac with commonly used additives as a
control. We use 2, 4-D and NAA at concentrations (mg/l) 2, 1 respectively as growth
regulators adding theme separately to the nutrient medium.
Results indicate that using lemon extract with NAA enhanced induction, fresh and dry
weight of callus of the two wheat varieties, comparing with control and potato extractcontaining medium. So we found it suitable to add lemon extract along with NAA to nutrient
medium used for micropropagation of these wheat varieties.

This study was designed to examine the invitro antibacterial effect of different types of
extracts of the seeds of the plant Nigella Sativa on the growth of different types of isolated
bacteria .
(100) samples of clinical isolates from patients at AL-Samawa general hospital shows the
growth of different types of bacteria (Staph .aureus , Staph . epidermis , Strept . pneumonia ,
E.coli , Klebsiella and Pseudomonas) and these were tested for sensitivity test against
different types of Nigella Sativa extract . The study shows good antimicrobial activity of these
extract on most of the gram positive bacteria and some of the gram negative ones . The
highest activity was against Staph .aureus and Staph.epidermis (P=0.05)while there was
little effect on E.coli and no effect on Klebsiella and Pseudomonas

propenyl) were isolated and identified from Prosopis farcta fruits . The is recommended
to use the phenolic compounds as herbal therapeutic substituents for treatment of urinary tracts
infections instead of antibiotics physical and chemical methods were used in identification such
as UV-vissible and infrared spectra , thin layer chromatography , column chromatography ,
fanctional groups test, gas-chromatography-mass spectrum and melting point . The medicinal
The phenolic compounds (caffeic acid,eugenol and phenol -2- methoxy -3-(2-activity for
compounds isolated with concentration ( 150 mg / ml ) , were studied against five types of
pathogenic bacteria of urinary tracts infections, are Escherichia coli , Staphylococcus aureus ,
Proteus sp. , Klebsiella sp. and Pseudomonas aeraginosa . The minimal inhibitory
concentration and cellular toxicity of these compounds , were determined , also the medicinal
activity of isolated phenolic compounds , was compared with some antibiotics such as
ampicillin , cephlaxin , ciprofloxacin , streptomycin and tetracycline . The phenolic compounds
showed that they have a highest medicinal effect for inhibition of bacteria growth than
antibiotics . It was found that isolated compounds have no a toxic effect against red blood cells
of human . As a result , it is recommended to use the phenolic compounds as herbal therapeutic
substituents for treatment of urinary tracts infections instead of antibiotics having side effects
but this work demands further clinical and pharmaceutical studies .