Journal of Basrah Researches (Sciences)

In the framework of the IBM the three transitional regions (vibrational, rotational , rotational g -
unstable and vibrational g - unstable) are analyzed. A new kind of plot is presented for studying phase
transition in finite systems such as atomic nuclei. The importance of analyzing binding energies and not
only energy spectra and electromagnetic transitions, describing transitional regions is emphasized and a new
method is discussed in order to provide a consistent description of both , ground state and excite state
properties.

This study presents a theoretical investigation for the function of surface currents describing and
radiation fields calculation for wire antenna formed through decreasing the radius of the conducting
cylinder (BoR) to very small value . The hypothesis leads to very good results that match a well-known
theory in the literature. This enable us to say that we introduce a new model for linear antenna parameters
calculation

In this paper, a parallel optical 2D data array multiplier for MSD (modified signed-digit) number system is proposed and designed. The design is performed by using DDP (digit-decomposition-plan) technique and DSS (duplication-shifting-superimposing) multiplication algorithm. The MSD multiplier is based on logical formulas which are newly derived according to the fundamental parallel multiplication algorithm. An optical implementation with classical optical elements is suggested for this multiplier. A simulated demonstration example is performed to validate the proposed design.

In this paper, we apply Adomian decomposition method (ADM) to solve the generalized nonlinear Fisher’s equation with give it is convergence proof. The results of numerical test for three types of this equation are show the efficiency and simplicity application of this method.

The idea of image compression is to process an image in such a way that its output representation requires to be transmitted or stored in a reduced size. In this paper, we solve the image compression problem using genetic algorithms (GAs) based on the pixels of the image. The technique described here utilizes the GA, which greatly decreases the search space for finding the Peak Signal-to-Noise Ratio (PSNR) and Compression Ratio (CR). PSNR and CR are used to construct the fitness function for set of chromosomes in this work. During the compression, the advanced wavelet coding schemes (soft or hard threshold compression) are used. Several experiments were given to illustrates the performance of the proposed scheme and it give good results to image compression.

In this paper a new simple image compression scheme based on BTC scheme has been presented. the proposed scheme dependes on the maximum and minimum pixels in image blocks, this scheme has been compared with Block Truncation Coding (BTC) and Absolute Moment Block Truncation Coding (AMBTC) schemes and the experimental results show that the proposed scheme gives good results in a short time with lower computational complexity compared with BTC and AMBTC, in this research a Pentium 4 computer with 1.7 GHz speed has been used and the MATLAB programming language has been used.

Due to the absence of antisera in Iraq, thereupon, in this search, the isolated species which belonged to genus Mycoplasma are presumptive (probably) species of genital mycoplasma, the characteristic and biochemical properties of them were fit with those of M.hominis, U.urealyticum, M.fermentans, M.genitalium and M.penetrans in dependence on Bergey,s Manual of determinative bacteriology (Holt et al., 1994). ,This study was current on 120 women attending the outpatient clinic of the obstetric and gynecology department of Basrah General Hospital during the period from February to July, 2007. Comprised women who suffered from some obstetric and gynecological conditions, for that purpose urethral swabs and the other from endocervix region were cultured then handled and processed with a Monophasic-diphasic culture setup (MDCS), a statistically significant difference at the level of (P< 0.01) was noted in the isolation of both presumptive mycoplasmal species M.fermentans and M.hominis from urethral region in comparison with endocervix region while, the isolation rates of U.urealyticum and M.genitalium were highest from endocervix region. Also, the results show, presumptive (probably) mycoplasmal species: M.fermentans , U.urealyticum, M.hominis and M.penetrans were more frequently distributed in women who were complaining of vaginal discharge followed by urethral abnormal and itching. Statistically, the associated significance was noted only in case of M.hominis at level of (P< 0.05). The genital mycoplasmas were recovered 15.0 percent in 18 cases as a single infection and 20.8 percent in 25 cases as a mixed infection with other causative agents (bacterial other than mycoplasmas), so this study showed the conjunction of U.urealyticum with M.hominis in 5 cases (4.1 %) and the M.genitalium with M.fermentans in 6 cases (5.0 %). Finally, the E.coli was found as a single infection in 5 cases and conjuncted with E.faecalis in 3 cases (2.5 %) while, P.aeruginosa found as a single infection in 4 cases and recovered 0.8 percent in 1 case only as a mixed infection with S.epidermidis.

Endosulfan, polycyclic ogranochlorine pesticide contaminating aquatic ecosystem as a potential toxic pollutents. Enzymatic tests in shrimp Caridina babaulti basrensis that were exposed sublethal concentration (0.1 µg/l) of endosulfan were carried out. Reductions in Superoxide Dismutase (SOD) activity was noticed and there was no alterations in the activity of Glutamate oxalate transaminase (GOT) and glutamate pyruvate transaminase (GPT). This kind of tests represents a rapid and inexpensive method for pesticide pollution detection.

The reactions of 5[2.3-dihydro –1.4-phthalazindionazo] 8-hydroxyquinolin with Sc,Y and La ions have
shown that 1:1and 1:2 complexes were formed in solution. The complexes were found to be suitable reagents
for direct spectrophotometric microdetermination of scandium. Yterium and Lanthanium, the stepwise
stability constants were evaluated applying corresponding solution method

In the present work the photostabilization of polystyrene film (150 5 µm thickness) has been studied using two anthraquinones, A and B derivative and six complexes of this compounds with three ions, copper (II), oxovanadium (IV) and nickel (II), these are:[Bis (1,4-dihydroxyanthraquinone)] Copper (II).[Bis (1,4-dihydroxyanthraquinone)] Oxovanadium (IV).[Bis (1,4-dihydroxyanthraquinone)] Nickel (II).[Bis (1-amino-4-hydroxyanthraquinone)] (Copper (II).[Bis (1-amino-4-hydroxyanthraquinone)] Oxovanadium (IV).[Bis (1-amino-4-hydroxyanthraquinone)] Nickel (II). All this compounds and complexes were identified by FT-IR and UV-Vis. Spectroscopy. The melting point of these complexes were determined. The degree of photodegradation was monitored by FT-IR and UV-Visible spectroscopy techniques and also by the loss in weight and viscosity. The two anthraquinone derivative and their prepared complexes give a good stabilization with compare with unstabilized polystyrene especially Ni complexes and copper complexes which give a good resistance for degradation than anthraquinones only

In the present work the photostabilization of polystyrene film (150 5 µm thickness) has been studied using two anthraquinones, A and B derivative and six complexes of this compounds with three ions, copper (II), oxovanadium (IV) and nickel (II), these are:[Bis (1,4-dihydroxyanthraquinone)] Copper (II).[Bis (1,4-dihydroxyanthraquinone)] Oxovanadium (IV).[Bis (1,4-dihydroxyanthraquinone)] Nickel (II).[Bis (1-amino-4-hydroxyanthraquinone)] (Copper (II).[Bis (1-amino-4-hydroxyanthraquinone)] Oxovanadium (IV).[Bis (1-amino-4-hydroxyanthraquinone)] Nickel (II). All this compounds and complexes were identified by FT-IR and UV-Vis. Spectroscopy. The melting point of these complexes were determined. The degree of photodegradation was monitored by FT-IR and UV-Visible spectroscopy techniques and also by the loss in weight and viscosity. The two anthraquinone derivative and their prepared complexes give a good stabilization with compare with unstabilized polystyrene especially Ni complexes and copper complexes which give a good resistance for degradation than anthraquinones only

Four isomers of 1-methyl-N-methoxycytosine and their mutual interconversion were studied theoretically at the B3LYP level using variety of basis sets and a different number of polarization and diffuse functions. It was found that the imino form of the studied molecule is the most stable form within the tautomeric mixture. Transition state of interconversion were studied at the B3LYP/6-31G(d,p) level of theory . The study has shown the exclusion the possibility of direct proton transfer in the gas phase due to the strain in the four-centered transition state, in which the proton being transferred is forced to come close to the positively charged carbon atom at the opposite corner of the four-membered ring.