Volume 15, Issue 2, Spring 2020


Construction of New Coated Carbon Electrodes for Determination of Sildenafil Citrate Drug

Aveen K. Mohammed; Ali I. Khaleel; Nawzad N. Ahmed

Kirkuk University Journal-Scientific Studies, 2020, Volume 15, Issue 2, Pages 1-16
DOI: 10.32894/kujss.2020.15.2.1

In this research, new coated carbon electrodes were constructed and used for the determination of Sildenafil citrate (SILC) drug. The electrodes were constructed by preparing ion-pair for (SILC) with phosphotungstic acid (PTA) or phosphomolybdic (PMA) acid using   dibutyl phthalate (DBP) as a plasticizer. These electrodes showed good sensitivity towards SILC with linear range of (1.0´10-7-1.0´10-2) M, correlation coefficient, (0.9990), the life time (120) days, optimum temperature range (23-65) oC and optimum pH range (2-5) for both electrodes, limit of detection (5.055´10-8 and 5.116´10-8) M, slope (57.29 and 59.10) mV/decadefor SILC-PTA and SILC-PMA electrodes respectively. These electrodes were successfully applied for determination of SILC in pure and pharmaceutical preparation form(tablets) with recovery of not less than 98%.

On Order - Convergence of Filters in a Riesz Spaces

Shatha Abdul-Hussein Kadhim; Shaimaa Abdul-Hussein Kadhim

Kirkuk University Journal-Scientific Studies, 2020, Volume 15, Issue 2, Pages 17-24
DOI: http://doi.org/10.32894/kujss.2020.15.2.2

The main purpose of  this paper, is study  the ideas of order- Convergence of filters in a Riesz spaces and that is through prove an important theorems related to the some properties Riesz spaces. So we established that the intersection and union all subsets of the collection of all proper filters  were converge to point in Riesz space it's the same convergence point the filter there exist in these subsets and proved that order-convergence for intersection (union) two filters to intersection (union) two different points in Riesz space is equivalent to the set consist of two convergence points we could write it by using these filters.

Study of Data Mining Algorithms Using a Dataset from the Size-Effect on Open Source Software Defects

Muthana Yaseen Nawaf; Maaeda Mohsin Rashid

Kirkuk University Journal-Scientific Studies, 2020, Volume 15, Issue 2, Pages 25-44
DOI: http://doi.org/10.32894/kujss.2020.15.2.3

This article focuses on the quality of data mining algorithms in terms of the accuracy ratio and time consumption. So, in order to figure out the best algorithm among the classification and clustering algorithms, the WEKA program will be testing all algorithms using a real dataset from the size effect on defect proneness for open source software. The Mozilla product is adopted as an example of open source software. The dataset that is used in this paper represents the output of the study of the size effect on defect proneness in the open source software. The study of Mozilla product shows a significant relationship between the size of software and the number of defect proneness in software. The Mozilla product study produced a dataset to be as inputs of the WEKA program in order to compare the data mining tools (algorithms). We use the Naive Bayes, Decision Trees J48, Expectation-maximization for classifying and K-Star and Simple KMeans for clustering methods. The findings demonstrate the difference between the algorithms according to the accuracy, and the time consuming to reach the result in each algorithm. Furthermore, the effect of the software size is significant on defect proneness. Finally, the experiments are conducted in WEKA with the aim of this research is finding out the best algorithm in terms of accuracy and time-consuming. At the end, the paper will be figuring out the best algorithm in order to choose and depending on it in the tests of classification and clustering.

Study of Spectroscopic and Vibrational Properties of the Phthalocyanine Molecule (C_32 H_18 N_8) and Magnesium Phthalocyanine (C_32 H_16 MgN_8) by Using Quantum Programs

Abdul Hakeem Sh. Mohammad; Sarah Ibrahim Mohammed

Kirkuk University Journal-Scientific Studies, 2020, Volume 15, Issue 2, Pages 45-62
DOI: http://doi.org/10.32894/kujss.2020.15.2.4

In this paper calculation spectroscopic and vibrational properties using Semi-empirical method, through the results showed the IR spectra, the value of the lowest amount of total energy for H2Pc molecule was equal to  for (C16-H41) and for (C27-H43), for MgPc moleculeis equal to  for (C17-H42) and for (C28-H44), and after that equilibrium distance is ( ) for each molecule. The theoretical and experimental results were compared to the energy gap, for H2Pc (5.67 eV), (5.04 eV), for MgPc (5.043 eV), (2.73 eV), respectively.

Calculation the Drought Index and Determination the Type of Climate for the Rainy Months in the Selected Stations in Iraq

Jawdet Hidayat Mohammed

Kirkuk University Journal-Scientific Studies, 2020, Volume 15, Issue 2, Pages 63-78
DOI: http://doi.org/10.32894/kujss.2020.15.2.5

This Study aims to calculate the drought index by application the de Martine equation and determine the type of climate for rainy months in the three selected stations in Iraq (Mosul, Baghdad and Nasiriya) by use data of (Rainfall and Temperature) for the period ranged (1970 to 2010), which was recorded from the "Iraqi Meteorological Organization and seismology" in Baghdad.
The results appears that the climate is humid in the months (December and January), the climate is variable between (wet and semiarid) in the months (February, March, April and November), while the climate is variable between (semiarid and arid) in the months (May and October) as a result of variation the values of (Rainfall and Temperature) for rainy months in the three studying stations.
In this research the relationship between values of drought index and the rainfall amount and temperatures has been showing by calculation the correlation coefficient and also obtained simple linear regression by applying program of Microsoft excel (2010), the results indicated the existence of strong linear correlation between the drought index and rainfall in the three studying stations values between (0.96) – (0.98), while the results showed the occurring of strong inverse correlation between the drought index and temperatures in the three studying stations values between (-0.93) – (-0.98) in the three stations.

Environmental and Diagnostic Study of External Parasites of Some Fish of Lower Zab River and Development Ponds Fishes in Kirkuk Governorate

Marwa M. Mudeed; Ashraf J. Mahmoud; Yassin H. Owaid

Kirkuk University Journal-Scientific Studies, 2020, Volume 15, Issue 2, Pages 79-96
DOI: http://doi.org/10.32894/kujss.2020.15.2.6

The study was conducted in the laboratories of College of Education for women/University of Tikrit and Environmental Laboratory in Science College/University of Kirkuk, for the period from July 2018 until end of December 2018, during which 773 fish were collected, including 358 fish from fishes of education ponds (Cyprinus carpio and Barbus lutens) and 415 from Lower Zab River fish (Barbus sharpeyi, Barbus xanthopterus, Silurus glanis).
The results recorded the infection of fish with three types of external primary parasites: Trichodina elegini in B. xanthopterus and breeding pond fish (C. carpio and donkeys), Chilodonella cyprinid by 7.9% in C. carpio fish from ponds and B. xanthopterus fish by 7.5% and 5.4% in B. sharpeyi  fish, and there was no infection in S. glanis and B. lutens fish , Einaria sinensis, 14.8% in S. glanis fish, 9.589% in C. carpio fish from ponds, 8.17% in B. xanthopterus and 6.081% in B. sharpeyi fish.
Changes were recorded in some of physical and chemical properties of water samples, as fluctuations in the average temperature of water were recorded between 26.7-11.5 ° C in river stations and 28-19 ° C in ponds stations, and the discretion values ​​showed site rates ranging from 28.9-21.6 NTU to water in river stations and 24. 6-20 NTU in ponds stations, a rate of electrical conductivity was recorded565-369micemens /cm for water in river stations and 690-408 micrometers / cm in ponds stations, pH values ​​ranged between 8.3-7.2 in river sites and 8.4-7 in ponds, and scored Variations in oxygen biomarker values ​​between 4.4-0.6 mg / l in river stations and 5.2-1.9 in ponds .