Al-Qadisiyah Journal of Pure Science

This paper presents a new approach for extracting the frequent itemsets that may be included in the frequent pattern using genetic algorithm. To construct an association rule pattern, we need to find the itemsets that are the most frequent in the data set. So the time that can be consumed to perform this task will grow exponential as the size of data is increased. In this work, we attempt to develop an approach based on the genetic algorithm. However genetic algorithm can be used in evolving the itemsets in order to obtain the intended itemsets that achieve at least the minimum support and this can be done automatically.

Our aim in this work is to give the general form for finding the general solution to the differential equation which has the form y″+ p (x) y'+ Q (x) y =0 and its proofs by using the assumption   Z x dx y e ( ) which changes the above equation to Riccati equation which has the form Z' +Z² + p (x) Z+ Q(x) = 0 . Introduction Many researchers in the field of differential equations and others, may face the problem of solving some differential equations whose solutions are difficult to find by using the simple methods . Therefore , they are trying to solve these equations by the power series or the Frobenius method [7] . Mohammed [4] faced difficulties in solving equations with the following forms

In this paper the concepts of principally quasi-injective modules and pointwise ker-injective modules are generalized to principally quasi ker-injective modules . Many properties and characterizations of principally quasi ker-injective modules are given for example , M is principally quasi ker-injective module if and only if for each m,nM, such that annR(n) annR(m) ,there exist an R-monomorphism α: M→ M and an R-homomorphism g:M→M such that g(n)= α(m). Finally some relationships between principally quasi ker-injective modules and another classes of R-modules are given .

Let R be a2-torsion free prime ring. Suppose that θ , are automorphisms of R. In the present paper it is established that if R admits non zero Jordan right ( θ θ,  )derivation, then R is commutative .Further ,as an corollary of this result it is show that every Jordan right ( θ θ, ) derivation on R is a right ( θ θ, )-derivation on R . Finally ,in case of an arbitrary prime ring it is proved that if R admits a right ( θ ,  θ, ) –derivation which acts also as a homorphisms on anon zero ideal of R ,then d=0 on R where d: R→R is a right ( θ )-derivation on R

In this paper we present approaches to find mhypergeometric solutions for anti-difference equations, homogeneous linear recurrence equations with polynomial coefficients, and non-homogeneous linear recurrence equations with polynomial coefficients provided their leading and trailing coefficients are constant.

Photocatalytic degradation of Hydroquinone (HQ) dissolved in aqueous TiO2dispersions under UV and near visible light has been investigated . The first experiments were used to determine the optimum value of TiO2,it was found that using 10 mg of TiO2 in 25 cm3of aqueous solution produced the highest degradation of rate constant . The effects of sodium dodecyl sulphate (SDS) and Rodamine 6G(Rod 6G) dye on the photocatalytic degradation of hydroquinone (HQ) have been studies .The results of degradation was observed that the rate of photodegradation was decrease with increasing of SDS concentration , while the results indicate that the rate of photodegradation was increased whenRod 6G dye was used. According the experimental results, the general reaction mechanism for this compound was suggested.

The present paper describes the use of 2–( 6 – Methyl – 2 – benzothiozolylazo ) – 4 – benzyl phenol ( 6 – MeBTABP ) as a sensitive and selective analytical reagent for the spectrophotometric determination of cadmium ( II ) . ( 6 – MeBTABP ) reacts with cadmium ( II ) in the PH range (3 - 9 ) to from a colored complex shows a maximum absorbance at 598 nm . The calibration curve is linear between 1 and 20 μg . ml-1 cd ( II ) , detection limit of 0.7 μg . ml-1 with molar absorptivity and Sandal's sensitivity values of L 1056 mol-1 . 0.0045 cm-1 , μg . cm-2 , respectively . The composition of the Cd ( II ) - (6 – MeBTABP ) complex is established as 1 : 2 by molar ratio and conductivity measurement methods . An excellent linearity with a correlation coefficient value of ( 0.9999 ) is obtained for the complex . The relative standard deviation , recovery and relative error values of precision and accuracy of method were found to be R . S . D . % = % , Re % = % and Erel % = The stability constant of the complex calculated is L2 73 × 1010. m-2ol , at room temperature . The interferences of foreign ions on the determination of cadmium ( II ) and suitable masking agents were used .

Extraction experiments for Zn2+ ions from aqueous phase by using 2-[4-Carboxy methyl phenyl azo]-4,5-diphenyl imidazole (4-CMePADI) shows the optimum pH value for extraction Zn ion from aqueous phase as ion pair association complex was (pH = 9) which is giving higher distribution ratio for extraction, as well as extraction experiment for different concentrations of Zn2+ ions from aqueous phase by use of (4-CMePADI) dissolved in chloroform elucidate preferability 90 μg Zn2+ (2.75×10-4 M) to giving higher distribution ratio. From other hand extraction experiment about the effect of shaking time for two layers shows (15 min.) was the suitable time for shaking to reach the equilibrium of extraction and giving higher distribution ratio. Stoichiometry for ion pair association complex extracted by using three methods showed the complex extracted have a structure of 1 : 2 which is know sandwich structure complex [Zn(4-CMePADI)2]2+ anion. The study about the effect of organic solvents on the extraction of Zn2+ ions showed preference of chloroform organic solvent for the extraction which is giving higher distribution ratio and this result shows the effect of organic solvent structure on the extraction of ion pair complex extracted, as well as thermodynamic study about the extraction of Zn2+

This study is concerned with the adsorption of Theobromine from solution on the surfaces of attapulgite and bentonite, which are provided locally in Iraq. The purpose of this study into search for an active surfaces to be used as an antidote in treating of poisoning by this drug if taken beyond its usual dosage. UV-spectrophotometric technique has been used to produce quantitative adsorption data at different conditions of pH, ionic strength and temperature. The calculated data were in accordance with Freundlich equation and the adsorption isotherms are of S-curve type according to Giles classification. The results obtained show greater adsorption uptake of the drug on bentonite than attapulgite. The adsorption phenomenon was examined as a function of temperature (25, 37.5, 45oC). The extent of adsorption of Theobromine on the clays was found to decrease with increasing temperature (exothermic process). The basic thermodynamic functions have also been calculated.

New reagent and two complexes of general formula [ML2CL2].H2O, where M = Cu(II), Ni(II),L = 2-[(2`-Iodophenyl azo)]-4,5-diphenyl imidazole have been prepared in ethanolic solution. Solid compounds were isolated and characterized by elemental analysis and vibrational spectra. The above newly synthesized compounds were investigated for their antibacterial, antifungal activities as well as, a sensitive and selective method has been developed for the determination of micro amounts of Ni(II), Cu(II). The method is based on the chelation of metal ions with 2-[(2`-Iodophenyl azo)]-4,5-diphenyl imidazole (2-IPAI) to form an intense color soluble products, that are stable and have a maximum absorptions at 566 nm and at 534 nm, and εmax of 1.26*104 and 1.66*104 L.mol-1.cm-1 for Ni(II), Cu(II), respectively. The stability constants and relative errors and a relative standard deviations for Ni(II) and Cu(II) were: 3.134*1010, 5.022*1010 L2 mol-2 and (-1, -1.33%), (-0.6, 0.3%) and (0.31, 0.699%), (0.29, 0.63%) respectively.

Abstract: A natural differential operator series is one that commutes with every function .This paper discusses natural nonlinear "normally ordered" differential operators series .The operators provides a wide range of higher order derivative identities , these identities specialize to a large variety of identities among binomial coefficient and the orthogonal polynomials ,a number of which are new.

This research study the tensile strength on specimens of glass wool fibers and rock wool fibers reinforced epoxy as composites .the main features of the results based upon the structural properties of the fibers (glass wool and rock wool). The tensile strength measurement shows increasing as the weight fibers of glass wool are increasing

The research is dealing with the absorption spectra of phenolphthalein laser dye.It is about fundamental vibrations modes, calculation of vibrated frequencies, diagnosing the fundamental and overtone beams within Fermy,s resonanace in the (MID-IR.) about (4000-200)cm-1,especially for fundamental groups in the molecular structures as (O-H,C-H,C=O,C-O,…..) in order to make use of in manufacturing Laser with wavy lengths in this aspect to be used as an active medium accordingly. .Theoreticall study has used PM3 program,and the practically has done by (FT-IR spectrometer).It was noticed an approximated approaching.Morever, the practical results have take into consideration the molecular multi-atoms.While,theoretical results take into the molecular monomer state.as well as the wavy numbers values for fundamental vibration modes which have been calculated with the existence of Fermys resonance for all frequencies , among them were overtone ones.

The current study aimed to identify bacterial species commonly cause nosocomial infections in surgical operation & burns inpatients,& to study their resistans to fifteen commonly used antibiotics .Ninety six patients examined through Jan-2000-Aug- 200l,include,71 inpatients (39 burns &32 surgical operations) & group of 25 outpatients with multi-drug resistance skin infections.119 isolates (either indvidual or mixed) belong to six species were isolated & identified ; Pseudomonas aeroginosa (26.8%) Proteus spp (18.4%), Ecoli (18.4%),s.nureus (17.5%),Enterobacter sp(4%)& klebsiella pneumoniae (l%). s.aureus isolated from I7(68%) of outpatients & one patients (4%) give P.aeroginosa. Antibiotics resistance varied among these isolates , generally ; 29 (24.3%) appeared to be resistant for all antibiotics used ,(38.6%) were sensitive to cefotaxine,(31.9%)sensitive to rifampicin &(30%) to

Two soils were choosen the first was silty clay loam (SiCL) and the second was loamy sand (LS) from Diwaniyah city. Two enzymes were choosen They were urease and phosphatase ( a lkaline and acid ) to study some kinetic properties for enzymes in soil and to study some factors effected on enzymes activity in soil (temperature degrees and salinity). The results showed that (Vmax) and (Km) in (SiCL) soil was higher than (LS) soil for both enzymes Urease and phosphatase (alkaline and acid). (Km) values were very lowest when the (Vmax) values were very highest in both soils and both enzymes. The results showed that the Urease and phoslphatase (alkaline and acid) activity were increased with increasing of temperature degrees in both soils. The highest values of activity were in the (SiCL) soil for both enzymes. The increasing of soil salinity decreased enzymes activity in both soils, and highest inhibitor percent was in the (SiCL) soil for urease and alkaline phosphatase but acid phosphatase, has a highest inhibitor percent in (LS) soil.

The Study included examination of (232) Faecal samples , (196) of it from human with diarrhea (104 male , 92 female) in Al-Hakim & Al-Zahra hospitals in Al-Najaf city . (17) of these samples from dogs & (19) from the cats during the period from first May to the end of March 2006 . The Study reveals infection in human at (9.1%) with significant effect of the age of P < 0.01 on the infection rates that reach the maximum (44.4%) at (2 - 4) years of age , Significant effect of the year months of P < 0.01 on the infection rates that appears at August & July (29.1%) & (23%) respectively which have the two upper percentages , while there are no significant effect of human sex on the infection rates . The Study reveals infection of dogs & cats at (23.5%) & (21%) respectively & this first record of Giardia parasite from cat in Iraq , measurements of the parasite differ with hosts .

Different concentration of Insect growth regulators Match 50% Emullition ( 0.25 , 0.50 and 0.75 ml/ L and Trigard 75% Powder ( 0.20 , 0.02 and 0200 gm / L) were used in this study against adult of Khapra beetle Trogoderma granarium . Results showed that the longevity of adult and its fecundity and eggs hatchability reduced when these adults were fed on food treated with different concentration of Match and Trigard during the first larval instars . longevity of adult , fecundity and eggs hatchability also reduced when these adults were fed directly with ( Match and Trigard ). This study showed that the IGR,S Trigard was more significant effect than Match on adults .

This field experiment was carried out in the season of ( 2004-2005 ) at al Qadisia governorate ( Alimhawiya district ) on the wheat plant . The objectives of this investigation were to study the effect of three levels of nitrogen fertilization ( 0 , 40 and 80 kg N/ha ) and three seeding rates ( 60 , 100 and 140 kg /ha ) . on growth , yield , and yield component . The results could summrized up as follows : مجلة القادسية للعلوم الصرفة المجلد ) 21 ( العدد ) 2( لسنة 1007 60 1- increase in ( plant height , leaf area – index and number of spikes per meter den to the increasing of seeding rate . and decrease in the number of tillers per plant , leaf area and dry weight . 2- plant height , leaf – area and leaf –area –index dry weight per plant and number of spikes/m all increased with the increase in nitrogen levels . 3- there were significant intraction between seeding rate ( 60kg/ha ) and nitrogen level ( 80 kgN/ha ) .

This study dealts with identifying isolates from burn infections in Al-Diwaniya's teaching hospital in Al-Diwaniya city. All bacterial isolates were identified using different biochemical tests. In this study Gram negative bacteria were found: Pseudomonas aeruginosa, E. coli, Proteus sp., Klebsiella sp., Citrobacter sp. And Enterobacter sp. Bacterial isolates were shown a multi-resistance to the Antibiotic using . The isolates showed the percentage of resistance to Ampicillin, Streptomycin, Gentamicin, Trimethoprim, Cephalaexin, Amikacin, Ciprofloxacin and Tobramycin were 100% , 56.25%, 43.75%, 68.75%, 56.25%, 62.5%, 75%. 25% and 52% successively. In order to detect the effect antibiotics: Ampicillin and Cephalexin (from a beta-Lactem group) were mixed with: Gentamicin, Tobramycin and Streptomycin(an aminoglycosid antibiotic). The results showed a great reduction in the resistance of both druge when mixed together compared with that.

Abstract Three hundred and fifty urine samples were collected from the Children contacting the Educational Hospital for Children and Delivery in AL- Diwaniya city whose ages ranged between (3-13) years during the period from the first of Sep .2005 until the first of May ,2006. After exclused urine samples were after the isolation and identification refered to other bacterial species. Isolated Escherichia coli bacteria as basic and important cause of urinary tract infections from 233 samples ( 66.57%). The results showed that 211 ( 60.28% ) revealed significant growth of this bacteria in infected children , 22 (6.28%) revealed non significant growth while no growth was observed in 117 ( 33.42%) .

A field experiment was carried out at the field crop research station of IPA – Agricultural research center during two seasons ( spring and autumn ) 2002 . In spring eight lines were crossed by three testers in a line x tester method to produce twenty four F1 hybrids . In autumn season the parents and crosses seeds were grown in a randomized complete block design with three replications to evaluate their traits and to estimate the general combining ability for lines and testers and specific combining ability for hybrids in yield and yield components . Results showed significant differences among the different genotypes for the yield and yield components , except number of ears per plant . There were significant differences on the effect of general combining in all inbred lines of maize and it appears that highest positive effect for number of grains per ear was 94.41 grain for inbred line ( OH40 ) , and the inbred line W13R was the best for 1000 kernels weight ( 22.70 ) gm . While the inbred line ( HS ) was the best in grain yield per plant ( 20.15 ) gm . The hybrid ( DK798 × R153 ) gave the heighest positive effect SCA for number of grains per ear ( 116.47 ) grain and for grains yield per plant ( 29.98 ) gm . While the hybrid ( OH40 × SC2052 ) gave the heighest effect for specific combining ability for 1000 kernels weight ( 37.10 ) gm .

The sttudy was carrrriied outt tto iisollatte tthe ffungii corrrrellatted wiitth burrn iinffecttiions ffrrom pattiientts settttiing iin All-- Diiwanyiia ttown durriing tthe perriiod ffrrom Septtemberr 2004 tto Augeustt 2005.. A ttottall off ((100)) swabs was ttaken ffrrom burrn''s skiin ,, butt 90 swabs onlly rrevealled ffungall grrowtth.. The rresulltts showed tthatt hiigerr ffungall iinffecttiion werre rrecorrded iin malle ((59)) tthan ffemalle ((31)).. Deatth perrcenttage rratte was rrecorrded ((100%)) when tthe age off pattiientts lless tthan one yearr and above 66 yearrs olld .. Aboutt ((13)) speciies off moullds and yeastts bellong tto ((7)) generra werre iidenttiiffiied :: Asperrgiillllus niigerr ((16..6%)) att 28 ْ C A--ffllavus((14..4%)) ,, A.. ffumiigattus ((13..3%)) ,, A.. tterrrreus ((12..2%)) ,, A.. candiidus ((10%)) ,, A.. parrasiittiicus ((7..7%)) ,, candiida allbiicans ((6..6%)) ,, C.. ttrropiicalliis ((6..6%)) ,, Peniiciilllliium spp.. ((4..4%)) ,, Rhiizopus spp.. ((3..3%)) ,, Alltterrnarriia spp.. ((2..2%)) and tthe derrmattophyttes Epiiderrmophytton fflloccossum ((1..1%)) ,, Trriichophyttiion rrubrrum ((1..1%)) .. Hiigerr deatth perrcenttage werre rrecorrded wiitth tthiirrd degrree off burrns ((32%)) ,, ffollllowed by second degrree off burrns ((24..3%)) ,, and ffiirrstt degrree off burrns ((0%)) ,, tthe rresulltts showed tthatt tthe deatth perrcenttage iincrrease wiitth tthe iincrrease off tthe burrned body surrfface arrea ,, iitt was (( 100%)) when tthe burrn body surrfface arreas above ((80%)) .. As tthe causes off burrns we showed hiigherr perrcenttage off burrns was rrecorrded wiitth ellecttrriic generrattorr ((32%)) ,, whiille tthe lless perrcenttage was rrecorrded wiitth chemiicall burrns ((1%)).. Allso durriing tthiis sttudy we appearred aboutt ((8)) speciies off Opporrttuniisttiic ffungii werre ablle tto prroduce affllattoxiin when grrown on ttwo diifffferrentt mediia underr ttwo ttemperratturre degrree 25 ْ C,, 30 ْ C subsequenttlly,, and allso we ffound tthatt Asperrgiillllus ffumiigattus was tthe bestt speciies fforr prroducttiion off affllattoxiin ,, whiille tthe ttwo ffungii A.. niigerr and A.. candiidus tthe lless speciies fforr prroducttiion off affllattoxiin iin iisollatted ttestted.

This experiment was conducted on wheat plant cv. Ipa 95 from the period of 3/12/2004 until 6/5/2005 in Kufa region, Najaf. The aim of the experiment was to study the effect of watering by different salinity water (river water E.C. =3.3 dsm−1, mixed water consist of river water and drainage water at a ratio of 1:1, and drainage water E.C. =6.55 dsm−1) and Zinc spraying as ZnSO4.7H2O at conc. of 2 and 4 g/l. In addition to control treatment spraying was done twice on seedlings at two intervals 65 and 95 days old. The interactions between the two factors were also studied. Vegetative parameters and productivity (i.e. plant height, leaf and tillers numbers, leaf area, shoot dry weight, numbers of fruiting and non - fruiting tillers, the weight of 1000 grain and productivity per unit area were studied. The results were as follow: 1- Vegetative growth parameters and productivity were reduced in plant that grown with drainage water for all treatments. The productivity was reduced from 904.5 to 496.4 kg/D . 2- Zinc spraying significantly affected the growth of vegetative parameters and productivity characteristics. Productivity reduced from 820.0 kg/D. when plants were sprayed with zinc at 4 g/l. conc. to 584.6 kg/D. in control treatment. 3- Watering wheat plant with drainage water with out zinc spraying had a negative effect on vegetative parameters and productivity that reached (438.2 kg/D.). Meanwhile, watering plants and drainage water with zinc spraying gave an important effect in studied characteristics, Productivity increased to 513.5 kg/D. with Zinc at 4g/l. compared with control treatment.