Misan Journal of Academic Studies

Nonlinear optical properties of congo red dye in tetrahydrofuran (THF) solvent are studied employing different optical techniques. Experiments are performed using the diode laser beam at 532 nm wavelength and 40mW power. The effect of nonlinearity of congo red dye in broadening the laser beam is observed. The optical limiting behavior is investigated by measuring the transmission of the samples. The nonlinear absorption coefficient is calculated using the open aperture Z-scan data, while its nonlinear refractive index is measured using the closed aperture Z-scan data. The nonlinear refractive index and absorption coefficient are found to be in the order of 4.14×10-8cm2/Watt , 1.99×10-3 cm/Watt, respectively. The results indicate that congo red dye is a potential candidate for low-power optical limiting application. The optical limiting behavior of the solvent of azo dye is also demonstrated

The study aims at investigating Iraqi EFL college students' errors in ‘Verb Be’at recognition and production levels. The study is restricted to the students in the Department of English, College of Education / University of Baghdad in the academic year 2011- 2012.The population consists of (168) Iraqi EFL students distributed over three sections A, B, C. Thirty students are chosen randomly to represent the main study sample and other twenty students represent the pilot administration.
To achieve the aim of the study , two tests have been constructed. The total number of items in the test is (24). While the first test represents recognition, the second test represents production. Results of the students' errors on the test indicate that most of the students' errors occurred in using be plus ed participle and plural concord at both production and recognition levels simultaneously .This study ends with a number of recommendations .

This Study was performed to determine the number of malignant tumors its and percentage in Missan goveornate during the period from 2000 to 2009 according to age, sex ,type of organ affected and geographic area of occuience.
The study recorded the total number of malignant tumors led to death during 9 years from 2000-2009 about (2287) case ,considered male were affected more the female1256male,54.92%and 1031 female,45.08% .The age group highly affected was that of (51-60)year which recorded 503 case ,22.99% in comparison to other age groups and the age group of(over 91) year recorded the lower number of (22)case (0.96%). Digestive system cancer was h more affected system than other organs which recorded number of (337)case and percentage of 14.74% while the Not other wise specific( NOS) recorded the lower number of (25)case and percentage of 0.09%. The geographic area highly affected was AL-Amara city which recorded (1490)case and percentage of 65.15% in comparison with other sites in Missan governorate . the highest incidence was in the year 2006 were 419 cases were recorded and a percentage of 18.32% while the lower accidence was in 2009 were (111)case were recorded and a percentage of 4.85% of all cases recorded .

This study summarizes the effect of egg shell particles on mechanical properties of poly vinyl chloride as a function of the filler concentration. Egg shell particles are added to PVC in different concentrations (5, 10, 15, 20 and 25) %wt. The five concentrations of egg shell powder are processed using the same thermo mechanical conditions. The mechanical properties of loaded film have been evaluated through several parameters concerning the elastic deformation based on measuring the load–elongation characteristics. No experimental difficulties appeared for all mixing ratio. The behavior of stress - strain curve is analyzed in terms of cold drawing model. Tensile at yield, toughness, proportional limit and elongation are suffering from a rapid decrease with increasing filler concentration above 15% due to non homogeneity in PVC loaded with different ratios of filler. Also the obtained results show that 15 % of filler concentration is the saturation value. The obtained results are explained in terms of the crack propagation and finally the filler contribution is reducing the cost.

Many new condenced polymers were prepared from condensation of Itaconicacid with different diamine compounds, such as benzidine,ethylenediamine and hexamethylenediamine and phenylenediamine.
The prepared condensed polymers were modified to their corresponding crosslinked polymers by using acrylonitril monomer.In this work, the first step was converted itaconicacid to its acid chloride,using thionylchloride to enhanced the condensation reaction.The physical properties were measured for all preparedpolymers and characterized by UV.and IR.spectroscopy.Thermal analysis such as TGA and DSC and elemental analysis such as C.H.N were measured,and the polymer viscosities were determined using ostwal viscometer and DMF as a solvent,at 30° c . The swelling℅ were calculated with different non solvents

This study concerned with chemical composition (moisture ,protein ,fat ,ash and cholesterol) for mushroom Agarieus bispours and comparison it’s with chemical composition of red and white meat samples such as (beef , mutton ,chicken , fish suboor and shrimp ) and meat products such as cow's milk , sheep’s milk ,white soft cheese made from cow's milk ,white soft cheese made from sheep’s milk and eggs. In all samples they were studied content of fatty acids.
Results showed that the percentage of moisture in mushroom was low compared with animals meat ,eggs ,cow's milk, sheep’s milk and white soft cheese made from cow's milk, but it higher than moisture of white soft cheese made from sheep's milk.in the same time eggs contained lowest moisture among this samples.
We found that the percentage of protein in mushroom was higher than percentage of protein in animals meat ,except of mutton meat .Also it was higher than percentage of protein in eggs , sheep's milk ,cow's milk and white soft cheese made from cow's milk ,but it was lower than percentage of protein in cheese which made from sheep's milk ,that has higher percentage of protein among samples.
The study mentioned that the mushroom contained lowest percentage of fat.since highest percentage of fat was in cheese which made from sheep's milk.
The results observed that the percentage of ash in mushroom was highest among samples,but lowest percentage of ash was in cow's milk ,while the highest was in eggs.

An experiment was conducted in a private field at Al – basrah province . were selected in Abu AL – Khaseeb during the growing seasons of 2011 through ( 28/2 – 28/8 ) to study the effect of application method Nitrogen and Iron on some physical characters and productivity of date palms Phoenix dactylifera L. CV. Khadrawi ,which applied at three concentrations from both Nitrogen and Iron with two application method ( soil and foliar) Which applied the trees before and after flowering .
The results showed that the application method of soil caused a significant effect compared with the foliar application method in the most physical characters and Productivity.

This study designed on group( 40 patients ) of the women were infected with breast cancer from different parts of Missan Governorate in period extended from (February-2009 to July -2009).The study was deal with two parts :
The first included some questions were filled by the patients women . Another part included Histo pathological examination of tissue specimens had been taken from the patients women through and after surgical operations .
The results were revealed increase in breast cancer with increase the age , where the height percent recorded with ages between (46-55or more)years assumed (50%)while the lower percent recorded in ages between (20-35)years assumed(13%) Eating behavior were observed height relation ship between animal food consumed (red meat ) and breast cancer in percent (65%), while the women with vegetation food were found in percent ( 10%) , but the women with mixture food found in percent (25%).

A device for pasteurizing and cooling milk by solar energy was designed, manufactured, and its efficiency was studied and tested.Consists of solar collectors for the first pasteurization unit and the second cooling unit. The results showed that all the energy of solar radiation and pickup energy and the efficiency of solar collector and the percentage of recovered energy and productivity was increased with the increasing daylight hours and the maximum values have ranged between twelve o'clock and one in the afternoon and then declined thereafter. The results showed that the average energy of solar radiation in summer and winter were 741 673 W/m 2,respectively, and the rate of efficiency of the solar collector was 40.7%, 46.8%,respectively,and the rate of energy recovered 66.81, 58.53%, respectively, and the rate of productivity 20.20, 13.76 liters/h respectively. The test results the chemical and microbiological showed the process pasteurization efficiency by solar milk pasteurization device.

The study deals with the housing problems in Iraq, where focused on three building methods, the structural hoses, the caravan houses(corrugated steel sheet and sandwich panel sheets), and the bamboo board houses. The comparison between these methods depend on, constructional, economic, social, and environmental factors. It is founded that all these methods are suitable for built time and cost economic houses. The structural method suitable for the luxury houses, while for caravans, The sandwich panel houses are better than the corrugated houses. The bamboo board houses are suitable for rural houses and also to solve the problem of poor families houses.