JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences
ISSN / EISSN : 19920652 / 23128135
Current Publisher: University of Babylon (10.29196)
Total articles ≅ 214
Latest articles in this journal
Published: 2 July 2019
JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, Volume 27, pp 406-419; doi:10.29196/jubpas.v27i3.2554
Abstract:The complexes of Co(II), Cu(II) and Ni(II) were synthesized by using schiff base – azo as a ligand, which were prepared under this study by the reaction between the Schiff base diazonium salt and the imidazole derevitive. They were characterized by element analysis, FTIR spectroscopy and UV.VIS. spectroscopy. Their electric conductivity and magnetic features were determined. Their stepwise and overall stability constants and their thermodynamic data ( , and ) were determined. The results showed that all the complexes have paramagnetic features and all of them have good conductivity. The formula of the complexes under this paper were suggested by using the mole ratio method which lead to the formation of (1 : 2) metal : ligand formula for all the complexes. In all the complexes the coordinated sites was through N atoms of the azo groups and N atom of the imidazol ring. The suggested geometrical shapes of the complexes was the octahedral shape due to the ( d2sp3 ) hybridization. Their stepwise stability constants were determined, it was found that for all the complexes they were increased toward the addition of ligand that because of the chelate effect. Their overall stability constants were determined, it was found that for all the complexes were high that because of the chelate effect. Their thermodynamic functions ( , and ) were had negative value, that refer to good stability for the complexes and these results were satisfied with the spontaneous reaction and high stability complexes.
Journal of University of Babylon, Volume 27, pp 519-526; doi:10.29196/jubpas.v27i1.2208
Abstract:Trigonometric Polynomial Regression is a form of non-linear regression in which the relationship between the outcome variable and risk variable is Fractional modeled as 1/nth degree polynomial regression by combining the function of cos(nx) and sin(nx) on the value of natural numbers. The model was used to analyze the relationship between three continuous and periodic variables. Coefficients of the model were estimated using the Maximum Likelihood Estimate (MLE) method. From the results, the model obtained indicated that an increased in body mass index will increase the level of blood pressure while age may or may not have an influence on the blood pressure level. The values of the Coefficient of variation showed the variation in the dependent variable was well explained by the independent variables and the value of the adjusted coefficient of determination showed the model had a good fit with a high level of predictive power.
Journal of University of Babylon, Volume 27, pp 358-366; doi:10.29196/jubpas.v27i2.2266
Abstract:The research aims to study the inter-relationship between global competitiveness indicators and human development indicators for selected countries (low, middle, and high income)by using Granger Test, and VAR Test. The results of the causality test showed that there is a causality relation between international competitiveness and human development. We found global competitiveness indicators has a clear effect on human development indicators in the low, middle, and high-income countries.
Journal of University of Babylon, Volume 27, pp 295-305; doi:10.29196/jubpas.v27i2.2204
Abstract:In this research, the solubility Process of the binary liquid solution(1-Propanol and butyl acetate) were studied at temperature(40,50.60)0C. Densities ρ by pycnometer method and viscosity ƞ by OSTWALD tube that calibrated with distilled water was measured. Then excess molar volume was calculated of pure component and its mixtures that was prepared over the entire mole fraction range. It has been observed that excess molar volumes values were negative at all temperatures. After that, the deviation in viscosity ∆ ƞ and Excess Gibbs free energy ∆GE was determined and it has been observed that it takes negative values at all temperatures. Excess molar volume, deviation in viscosity, excess Gibbs free energy were correlated with Redlich-Kister equation Type polynomial and the showed an accepted standard deviation between the experimental and calculated values it has been shown the effect of Hydrogen bonds formation and the spherical shape for the molecules and its size on the excess thermodynamic properties.
Journal of University of Babylon, Volume 27, pp 286-294; doi:10.29196/jubpas.v27i2.2203
Abstract:Iraq suffers Like the rest of the world Different degrees of progress economy Of the dangerous effects of public budget and that the imposition of fees and fines for polluters is inadequate, in addition to carrying the budget to implement the law of protection and improvement of the environment in Iraq No. (27) for the year 2009 through the Ministry of Environment and Health. Therefore, the research aims to determine its goal by studying the tax indicators that help to know the possibility of introducing a new tax, the green tax to protect the environment from pollution in addition to increasing the tax revenues to address the problem of the general budget deficit. The research reached the possibility of imposing a new tax, Provide for the possibility of tax accounting.
Journal of University of Babylon, Volume 27, pp 341-357; doi:10.29196/jubpas.v27i2.2247
Abstract:The balanced scorecard is considered a modern form of evaluating the Performance of economic units; as it depends on the integrated measure of financial performance presenting a description for past events results, besides, depending on un financial measures representing as indicators of future performance. Accordingly, balanced scorecard allows economic units evaluating their performance with four perspectives, the financial, Customer, internal operation, and education and growth perspective.
Journal of University of Babylon, Volume 27, pp 478-488; doi:10.29196/jubpas.v27i1.2250
Abstract:Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune disease with variable clinical presentation. SLE can affect all organs and the involvement of major organs can be life threatening. This study aimed to determine the relationship of Epidermal Growth Factor (EGF) and Cortisol hormone on SLE Disease. This study was carried out on (70) study sample, (36) were patients and (34) control. SLE disease had significant association between study groups and sex of patients with SEE disease were 16 times more likely to be female. There were significant mean differences of Epidermal growth factor and Cortisol Hormones by study groups
Journal of University of Babylon, Volume 27, pp 317-328; doi:10.29196/jubpas.v27i2.2226
Abstract:Financial engineering refers to the generation of new instruments or securities to meet the need of investors or refinancing providers for financing instruments, the research aims to highlight the importance of financial products in activating and developing, the stock market as a source of financing for the economy. Where the multiplicity and diversity of financial products traded in the stock market is a cornerstone of its efficiency and development, the diversification of financial products can be used as a hedge against the risk of trading securities. The research was to highlight these risks and how to reduce them, through financial engineering productsmany conclusions and recommendations have been reached.
Journal of University of Babylon, Volume 27, pp 468-477; doi:10.29196/jubpas.v27i1.2232
Abstract:Nowadays, the high speed and accurate optimization algorithms are required. In most of the cases, researchers need a method to predict some criteria with acceptable accuracy to use it after in their algorithms. However, in the field of parallel computing the execution time can be considered the most important criteria. Consequently, this paper presents new execution time prediction model for message passing interface applications execute over numerous grid scenarios. The model has ability to predict the execution time of the message passing applications running over any grid configuration in term of different number of nodes and their computing powers. The experiments are evaluated over SimGrid simulator to simulate the grid configuration scenarios. The results of comparing the real and the predicted execution time show a good accuracy. The average error ratio between the real and the predicted execution time for three benchmarks are 4.36%, 5.79% and 6.81%.
Journal of University of Babylon, Volume 27, pp 446-456; doi:10.29196/jubpas.v27i1.2207
Abstract:This research aimed to isolate and identified the pathogen caused wilt in pumpkin plants and control by two bioformulation Trichoderma harzianum and Pseudomonas fluorescens. The results revealed that the caused pathogen of pumpkin wilt plants was Fusarium oxysporum which diagnosis has been confirmed by using PCR Technique. The results of pathogenesity revealed that 60.17% from Plants grown in contaminated soil infected with F. oxysporum. Also the results showed that use the T. harzianum that has high antagonism with pathogen, the degree of antagonism has reached 2 with F. oxysporum at Bell scale. P. fluorescens showed inhibition ratio against F. oxysporum and T. harzianum. reached 44 and 27% respectively. The results with use antibiosis for T. harzianum , P. fluroescens and manure revealed that the least severity was in the transactions MThPf (manure, fungi and Bacteria), MTh (manure and fungi), ThPf (fungi and bacteria), Th (T. harzianum), Pf (P. fluorescens), MPf (manure and bacteria), where ranged 0 - 5.56% , which did not differ significantly between them compared to M (manure) and control that reached 13.69% and 22.22% respectively. Weight in soil contaminated with pathogen in MThPf and ThPf that reached 376.83 and 379.22gr compard with control in the same soil when reached 66.41 gr .The results of the analysis with used GCMas revealed transactions in presence of Antibiotics and substances Phenol 2,5-bis (1,1-dimethyl), 4-Fluorobenzyl alcohol, Hexadecanoic acid (2) -methyl ester, 1-Pyrrolidine butanoic acid, gamma-Tocophenol and 9-Octanoic acid (2) -2-hydrox.