Ibn Al-Haitham Journal For Pure and Applied Sciences

The study was conducted to e'aluate the effect of Myrrh essential oil on growth of three isolates of Candida albicans. Results
.showed inhlbitory effect of Myrrh essential o.il on growth of the teste<:!
isolates. MTC tor vaginal and nail .isolates· was 5% where is for the standard isolate it w I 0%. AdditionaUy, Es ential oil affect morphology types of Candida albiccms cells, .resuJting double increase in pseu.dohyphae percentage and double decrease in budding cell percentage .compared to the control types which may indicate JYossible
e£fect on division and reproduction.
Activity of essential oil of Myrrh using gaseous contact
method showed .inhibitory effect of the ojl for the hree isolates. with
MIC more than (75) ,.tt.

This experiment was carried out to evaluate the efficiency ·of growth regulator (Match) and biotic pesticides (Agerin) on the pupa and adult stages of cotton leaf worm Spodoptera littoral is {Boisd) that developed from the 1 51 larval instar fed on food treated with different concentration of these pesticides for different' periods. Result showed that their was a significant decreases in pupal period pupal weight, pupal length, abnonnal growth for pupal stage . A significant decrease in the emergence percentage of adults from these pupa , adult longevity ·adult age , hatchability gf eggs , male : female. ratio and abnormal growth. for adult stage was also noted . The laboratory studies showed that the lOR 's Match was more effective than Agerin in all concentrations and periods of feeding .The three days feeding periods als.o were more effective than the- one day feeding period in this regard.

F0od and feeding habits of Hetropnezt.s!fes ]ossili/}:. (Bloch) have been investigated. Monthly samples (twice a m()nth} were taken during the period from March 2000 to February 20.Ql , using small -

meshed cast net. A total of l9J ftsh were used to examine the stomach

contents.

The analysis of stomach contents of H fo.s-silis in the- area of study revealed that fish were fed on the bottom, mid ·surface and surface food. The main fb.od of the fish were pbyt9planktons, moUuscs, ,chironomid larvae and pupae and higher plants which mean that the- species under investigatiofl prefer to be camivoro_us in the area of study. the study of variation in feeding intensity of H. fossilis , showed that the highest feeding intensity was observed during sununet months while the lowest was during autumn and such variation occurred due to the a:vailability of food in the J1abitat, the

changes in temperature·s and for perhaps · due to the feeding habits of this species.

Four alkaloids compounds were extracted from the fruits and leaves, of plant known locally as (Anab AI-Thebe Solanum nigram), by various solvents systems, from an earlier study by the researcher. DNA tested its effect in plasmid PBR322 deportation method using Gel Electrophoresis. Results showed that two of those extract for full effectiveness digestible pieces of RNA and DNA plasmid, and digestive partly of the other alternatives. That could prove results indicate that this type of alkaloids consist of biological effectiveness of anti-twnors, through DNA digestion spare low molecular weight, as well as their effectiveness as antibacterial which had been found previously.

This Study· is to investigate the Visceral LeishmaniEJ,sis among 8

susp<:;cted infants and young chUdren admitted 1o AI-Khadhtmiya

Pediatric Hospital in Baghdad between January 1,2005 o August

31,2005 .For each patieni, a medical history was obtained and a complete physical examination was performed by physicians . The serums of the .suspected c_es were primarily diagnosed by using a new ,simple diagnostic method bas.ed on detecting antib9dies against the recombinant K 39 antigen by innnunochromatographic format



(Dipstick test). The positei



cases. were sent to the Central Health



Laboratory in Baghdad to he confirmed by indirect fluorescent antibody test QFAT)with speCial chart for notifying the patient's residency in details .

The ihcidence of infection was (J 2%)1 most patients were from males and the majority of cases were from Baghdad .The study also showed the investigators evaluation for performance of the test and its s nsitivity and specificUy in different endemic areas which proved that the test is ·a new, simple ,and specific reli_a le diagnostic method and ()oulcl _be used for the primary diagnosis ,of endemie foci in remote areas which have poor access to health services _

An Experimental comparison between the current-voltage

characteristic and the efficiency conversion from solar to electric energy were studied for square and circular single crystal silicon solar

cell of equal area (35.28 cm2) . The results show that the solar shape is

an important factor in calculating the current-voltage characteristics and efficiency of the solar cell. It was shown that the performance efficiency of the square cell is greater by 8.19% than that for the circular cell of equal area.

Although the packing factor for the square cells in the solar panel

.reached 96% compared with 79% for that for circular cells panel panel, the final cost for the circular cel1s panel is less than square cells panel.

ln this paper we study and analysis the total intensity (P) .and the horizontal component (H) of the geomagnetic field at the location na ly Brazilian Anomaly (Lat 25S, long 4S·"W) in which the geomagnetic field intensity has a minimum value. We examine the relationship. between the { F , H) with altitude at a certain latitude, and

.relationship between ( F,H ) with the latitude at the certain altitude

.We study also the nature of the secular variation of the geomagnetic field at the same locat.ion dpning one century (1900-2000) , we found that the rate of change of field inten5ity (F). is roughly (9.3 % per century).

The geomagnetic field data is obtained by using JGRF1 0 model at

Brazilian anomaly (long 45"W).

In the present work the nuclear structure of even-even

Ba(A=130-136, Z=56) isotopes was studied using (IBM-1). The reduced matrix element of magnetic dipole moment (11 II f(Ml) II/,) and the magnetic dipole transitions probability B(M 1) were calculated

for one and two bodies of even-even Ba(A=lJ0-136, Z=56). A good

agreement had been found of present with available experimental data.

The aim of this work is to determine radon and its decay product concentratiQns indoor and outdoor in different areas in north and middle are·a of Iraq by using nuclear trak detectors , CR-39 , CN- 85 andLR-115. -

For CR-39 detectors , the highest radon concentration was

(64.07Bq/m3)indoor and (52.4 Bq/m3)

outdoor , in Autumn season .

And the concentration of that radon and its decay product indoor were greater than outdoor . temperature seems to playsapredominant role in the formation of radon concentration .

:Electron transfer (El) through molecular frameworks is. ce.ntral

to a wide range of chemical, physical , an biological processes. Atheoretical calculation ·investigation of (ED between dihydroxy antimony (V) tetraP.henylporphine cation (Sb''(TP.P)(04)2] and halid cr,Br·,r ,and SCN- is presented . These Calculations &re is fiting on experrnental studies Showing that the rate of Electron Transfer. The theoretical Calculation are based ·an a eontinm: m theory. The tran:sferr ng is treated quantum mechanically, and the solvent i·s represented as adielectric continuum . For electronically nonadiabatic ET , the rate expres ions for (ET),KET ,depend on the e1ectronic Coupling matrix element ,HAB , the free energy change of the reaction

!:!..G o • and the reorganization energy J.

The preferable design for unsaturated symmetrical spherical

double-pole piece electron lens required good focal properties, and in this present study investigate effect of air gap wide (S) on the properties of the projector lens specialized the minimum projector

focal length 1Fr) . and the properties of the axial magnetic field

\ lnlll

distribution:(the maximum value of magnetic flux density Bm and total half width of magnetic field curve W) , and at lowest values of

mm


(Fr) . at low values of (S) will be obtained high magnification and

there is an importance indicator for preferable lens design which is used in transmission electron microscope (TEM).

A loS.sless (reversible) data hiding (embedding) method inside an image (translating medium) - presented in the present work using L_SB (least significant bit). technique which enables us to translate data using an image (host image), using a secret key, to be undetectable without losing any data or without changing the size and the external scene (visible properties) of the image, the hid-ing data is then can be extracted (without losing) by reversing the encoding process , knowi11g and using

the same secret key. This method tested by using two images a:nd by

u-sing several embedding bit rates the result is that the host image

undlstinguisbable from the st go images , then we used (PSNR) and (MSE) methods to fined the aifference values between the host image and the stego images.

The lossy-FDNR based aclive fil ter has an important property among many design realizations. 'This includes a significant reduction in component count particularly in the number of OP-AMP which consumes power. However the· problem of this type is the large component spreads which affect the fdter performance.

In this paper Genetic Algorithm is applied to minimize the component spread (capacitance and resistance p,read). The minimization of these spreads allow the filter structure to be integrated since the minimum omponent spread mean minimum chip· area required for fabrication.

Adsorption of AniLine and some derivatives from aqueous. solution on kaolin clays surface was investigated, The isotherms were of type S3 d S4 according to Giles Classification.

The effect of introducing electron withdrawing groups and

electron donating

Groups in the aromatic ring on the adsorption process has been investigated ; The results showed that the extent of adsorption has been increased as a·result of substitution of groups, and found that the

derivatives were less rn adsorption capacity than the adsorption

capacity for the uil substituted compound.

The effect of the type of thsubstituted, grqup at the same sjte on the adsorption extent of aniline :was found to decrease in the following order:

Aniline > o- nitro Aniline > a-Toluidine

Adsorption on kaolin surface was examined as afunction of temperature in the range (298-328k) . The extent of adsorption was

found to illc(ease with the increase in temperature (Endothermic)

Adsorption studies nn kaolin clays surface at different pH values. showed an increase in the fol10wing order according to the pH of solution for aniline and o- tolu. idine :

pH 4 >11 > 7

while foro-nitro Aniline showed increase in the fo-llo\ving order:

pH 11 > 4 > 7

Two series of 1,n-alkylene glycol di [4{N(T-thiazolylazo­

nrethinyl)}2-metho y] phenyl ether and I ,n-alkylene glycol di[4{N(r-benzo-thiazolylazomethinyl)}2-methoxy]phenyl ether were synthesize-d via rea tions 2-aminothiazole and 2-aminobenzothiazole with dialdehyde • (which are synthesized from .reaction vanil.lin with

l ,n-dibromo or ehloro. alkane in the basic me'dia ) . The new

compounds characterized by elemental analysis (of some of theme) , physical and spectral data .All the schiff-bases have been screened for their antifungal and antibacterial activity against Aspergillus niger ,. Escherichi coli (0-) and Staphylococcus aureus . (G+) . AlJ compounds were found to be active antibacterial and antifungal (except [III] 12 was not show any antifungal activity).

A simple, rapid, accurate and sensitive spectrophotometric method is proposed for the detennination of chlorprQm
blue or bromophenol blue in an acidic buffer at pH values 4.17 and

3.68, respectively.

The ion-pair complexes formed exhibit absorption maxima at 41 Onm for both thymol blue and bromophenol blue. These complexes· are quantitatively extracted with chloroform. The calibration graphs are tmear and obeyed Bee 's law in a cort.ce n:at_ion range of 50-450fg!ml and H:}-120)lg/ml w1th molar absorptttvttes of L0374xl0 and

1.7613xl03 Lmorcm·1 for thymol blue ,and bromophenol blue,

respectively.

Statistical treatment of the experimental results indicated that the method is precise, accurate and the procedure was successfully applied to the determination of the bulk drug and its pharrnaceutic;al fpnnulations.

Equilrium, kinetic and mechanistic studies for thcoordination of



;


some amino acids "'AA'1



glycine, alanine, .a:ncl histidine, to Cr (Ill)



center of trans .[Cr(ox}2(B.2 0hr {TJ'} cornplein monderarely acidic

range ofpH=4.8-6-.7 ( p =Q.4M NaN03) are reported. The equili rium

c.onsta:nts at 25°C .were found logKequ.=4.95J ,5.206and5.128for glycine, alap.ine, md histidine, ligation. reactions respectively.. The substitution reaction is kinetically involve rwo parallel complex reactions, each inch,tdes there difierent e_onsecutive steps of different

·


species of Ct(III). The reactant, Ti, branches through byrolysis into, doubly charged anion, conjugated se of trans[Cr(ox)22(H0)0Hr2

whlch inleracts with (AAH) to from outer-sphere complex, that is followed by interchange reaction of one molecule H20 with one end of AA- ron from an active intermediate species of trans­ [Cr(Qx)2(AA)OHT3 which cbanges to final product ; c.is­ [Cr(ox}1(AA)J?. While the remai ning part of reactant interacts also

with zwitter i:on (AAH) on other side to form another outer-sphere

.complex which also undergaes interchange reaction of one molecule



H10 wHh AA- ion to ive two· active intennediates species, trans and cis-[Cr(ox)2(AA)H2 or, whlch later convert tp the same prod·uct .; cis­

fCr(ox)z(AA)]2-. TI1e interchange rate co.nstant of trans­ [Cr(ox)2(AA)OH] formation relatively appears much larger than (A H*=8.8kc 1/n1ol) that of ds[Cr(.oxh AA)H:z Ot formation

( l\ H*·=14.0Kca l/mol), wbile the latter rate constant'is oeaily (5-10)

time l(!I'ger than that oftrans-{Cr(ox)2(AA)H20t fennatlon

Image capturing in most still and motion digital cameras employs a charge coupled device covered with a monolithic array of color filters such that each pixel samples only one color band. Interpolation is necessary to restore the missing color samples in the resulting mosaic, this process referred to as demosaicking.

This paper gives an overview of demosaicking, presents few

methods proposed in the literature, and concludes with a quantitative comparison of these methods for a set of images.