Aerosol-assisted chemical vapor deposition (AACVD) technique is very precise implemented to fabrication of structured SrTiO3 and Sr1-xBxTiO3 thin films at doping ratio (x = 2, 4, 6 and 8) % at temperature 400 °C on a glass substrate. The X-Ray Diffraction (XRD) patterns illustrated that the SrTiO3 and Sr1-xBxTiO3 thin films have a polycrystalline nature and cubic structure, the detailed characterization of the films by X-ray diffraction (XRD), the Surface Morphology studied by using (AFM) and (SEM). Have been noticed from AFM measurement the Roughness and RMS were increased with increases doping ratio. The optical properties of SrTiO3 and Sr1-xBxTiO3 thin films have been studied at doping ratio (x = 2, 4, 6 and 8) % at rate (300-900) nm. The transmittance spectrum is characterized by the opposite behavior of the absorbance spectrum. The transmittance generally increases with the increase in the wavelength of radiation, at wavelengths with low energies while the absorbance decreased slowly at spectrum rate (300-900) nm i.e. in the visible region. The band gap (Eg) is decreased at (3.2 - 2.5) eV which indicates that the doping process has led to the emergence of localized levels in the region confined by the valence and conduction bands, led to a reduction in the photon energy required for direct electronic transitions to occur. Found the carriers concentration charge are holes of Sr1-xBxTiO3 thin films at doping ratio (x = 2, 4, 6 and 8) %. Many properties can be improved by adding impurities such as Boron (B) to the SrTiO3, which can be used in solar cells, electronic industries or thermoelectric generators by controlling the optical or structural properties of the material by controlling the materials and percentages of impurity, or through heat treatment of the material, such as annealing, for example or exposure to different temperatures.
{"title":"Aerosol-Assisted Chemical Vapor Deposition (AACVD) Technique of SrTiO3: B Thin Films and Study the Structural and Optical Properties and Hall Effect Measurements","authors":"Yahya M. Abdul-Hussein, R. Hussain, M. Khalaf","doi":"10.23851/mjs.v33i4.1177","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1177","url":null,"abstract":"Aerosol-assisted chemical vapor deposition (AACVD) technique is very precise implemented to fabrication of structured SrTiO3 and Sr1-xBxTiO3 thin films at doping ratio (x = 2, 4, 6 and 8) % at temperature 400 °C on a glass substrate. The X-Ray Diffraction (XRD) patterns illustrated that the SrTiO3 and Sr1-xBxTiO3 thin films have a polycrystalline nature and cubic structure, the detailed characterization of the films by X-ray diffraction (XRD), the Surface Morphology studied by using (AFM) and (SEM). Have been noticed from AFM measurement the Roughness and RMS were increased with increases doping ratio. The optical properties of SrTiO3 and Sr1-xBxTiO3 thin films have been studied at doping ratio (x = 2, 4, 6 and 8) % at rate (300-900) nm. The transmittance spectrum is characterized by the opposite behavior of the absorbance spectrum. The transmittance generally increases with the increase in the wavelength of radiation, at wavelengths with low energies while the absorbance decreased slowly at spectrum rate (300-900) nm i.e. in the visible region. The band gap (Eg) is decreased at (3.2 - 2.5) eV which indicates that the doping process has led to the emergence of localized levels in the region confined by the valence and conduction bands, led to a reduction in the photon energy required for direct electronic transitions to occur. Found the carriers concentration charge are holes of Sr1-xBxTiO3 thin films at doping ratio (x = 2, 4, 6 and 8) %. Many properties can be improved by adding impurities such as Boron (B) to the SrTiO3, which can be used in solar cells, electronic industries or thermoelectric generators by controlling the optical or structural properties of the material by controlling the materials and percentages of impurity, or through heat treatment of the material, such as annealing, for example or exposure to different temperatures.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79138360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the increased use of information technology, many financial services are available to users at their fingertips. However, this led to many fraud transactions. Automatic fraud identification and detection could improve the user experience and security of online transactions. Using machine learning algorithms, it is possible to detect fraud transactions. Machine learning algorithms have the ability to find the hidden implicit pattern and data relationships from a large dataset. Hence, using this algorithm is possible to detect the outlier from all transactions, which can help in determining the fraud transaction. In this paper, the APRIORI algorithm and Support Vector Machine are used to detect fraud transactions in credit cards via developing a secure web application service enforced the security by standard metrics. We compare the result with the other existing machine learning algorithms. We observed that the accuracy of fraud transaction detection is higher in the proposed algorithm more than 94.56, and the false fraud transaction detection is less than the fraud detection based on the Hidden Markov Model.
{"title":"Detection and Prevention WEB-Service for Fraudulent E-Transaction using APRIORI and SVM","authors":"Shatha Jassim Muhamed","doi":"10.23851/mjs.v33i4.1242","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1242","url":null,"abstract":"With the increased use of information technology, many financial services are available to users at their fingertips. However, this led to many fraud transactions. Automatic fraud identification and detection could improve the user experience and security of online transactions. Using machine learning algorithms, it is possible to detect fraud transactions. Machine learning algorithms have the ability to find the hidden implicit pattern and data relationships from a large dataset. Hence, using this algorithm is possible to detect the outlier from all transactions, which can help in determining the fraud transaction. In this paper, the APRIORI algorithm and Support Vector Machine are used to detect fraud transactions in credit cards via developing a secure web application service enforced the security by standard metrics. We compare the result with the other existing machine learning algorithms. We observed that the accuracy of fraud transaction detection is higher in the proposed algorithm more than 94.56, and the false fraud transaction detection is less than the fraud detection based on the Hidden Markov Model.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"82 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74599600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The geopotential height at 500 hPa is a key factor in determining the weather and climate conditions around the world. This paper aims to study the effect of 500hpa geopotential height in Iraq weather from a synoptic perspective and evaluation the variation at 500hpa geopotential height. On (26-29 January 2013), a case of atmospheric instability affected Iraq, where a heavy amount of rain fell over Iraq on 28 January 2013, the amount of rain that fell on Kirkuk was about (72.2mm). The result showed that when the upper-level trough stretches from Europe towards the Mediterranean, it will enhance surface low pressure. In addition, the advection of moisture from lower latitudes resulted in a situation of instability that brought severe rain to Iraq. during this period the value of geopotential height decreased sharply. The decrease in the value of geopotential height is an indicator of turbulent weather when compared to surrounding regions.
{"title":"Evaluation of Geopotential Height at 500 hpa with Rainfall Events: A Case Study of Iraq","authors":"Mohammed Abdul Raheem Jabbar, A. Hassan","doi":"10.23851/mjs.v33i4.1161","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1161","url":null,"abstract":"The geopotential height at 500 hPa is a key factor in determining the weather and climate conditions around the world. This paper aims to study the effect of 500hpa geopotential height in Iraq weather from a synoptic perspective and evaluation the variation at 500hpa geopotential height. On (26-29 January 2013), a case of atmospheric instability affected Iraq, where a heavy amount of rain fell over Iraq on 28 January 2013, the amount of rain that fell on Kirkuk was about (72.2mm). The result showed that when the upper-level trough stretches from Europe towards the Mediterranean, it will enhance surface low pressure. In addition, the advection of moisture from lower latitudes resulted in a situation of instability that brought severe rain to Iraq. during this period the value of geopotential height decreased sharply. The decrease in the value of geopotential height is an indicator of turbulent weather when compared to surrounding regions.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75421284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Sulfur dioxide (SO2) is a colorless air pollutant cannot been seen with unaided eye. The fossil fuels burning, including coal, oil and gas, are the largest source of SO2. Often the SO2 Pollution reaches hazardous levels near the coal-fired plants, oil refineries, and in industrialized areas. This study analyzed the trend, spatial and temporal distributions of anthropogenic SO2 emissions in Iraq from January 2000 to December 2009, and series and trend analyses over six stations (Baghdad, Mosul, Basra, Muthanna, Babylon , and Kirkuk) using MERRA-2 data. The monthly SO2 are analyzed for the study period. The SO2 fluctuations were checked, depending on the background of each SO2 sources. The results shows clear reductions of SO2 values from 2002 till 2006, and the SO2 values increases during 2006 to 2009 over all stations. The annual trend analyses shows positive results over Baghdad, Al-Muthanna, and Babylon, and negative results over Basra, Mosul and Kirkuk. A large differences of SO2 values were over Basra, Kirkuk and Babylon, and slight difference over Baghdad, Mosul and Al-muthana. The monthly SO2 anthropogenic emissions values shows relatively stable over most stations, and the only fluctuation over Babylon and Kirkuk during study period. Observed higher SO2 values in the winter and spring than its values in the summer. This research pretends the satellites observation efficiently shows the spatial and temporal variations of SO2 for the considered study area
{"title":"Sulfur Dioxide (SO2) anthropogenic emissions distributions over Iraq (2000-2009) using MERRA-2 data","authors":"Noor M. Abbas, J. Rajab","doi":"10.23851/mjs.v33i4.1187","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1187","url":null,"abstract":"The Sulfur dioxide (SO2) is a colorless air pollutant cannot been seen with unaided eye. The fossil fuels burning, including coal, oil and gas, are the largest source of SO2. Often the SO2 Pollution reaches hazardous levels near the coal-fired plants, oil refineries, and in industrialized areas. This study analyzed the trend, spatial and temporal distributions of anthropogenic SO2 emissions in Iraq from January 2000 to December 2009, and series and trend analyses over six stations (Baghdad, Mosul, Basra, Muthanna, Babylon , and Kirkuk) using MERRA-2 data. The monthly SO2 are analyzed for the study period. The SO2 fluctuations were checked, depending on the background of each SO2 sources. The results shows clear reductions of SO2 values from 2002 till 2006, and the SO2 values increases during 2006 to 2009 over all stations. The annual trend analyses shows positive results over Baghdad, Al-Muthanna, and Babylon, and negative results over Basra, Mosul and Kirkuk. A large differences of SO2 values were over Basra, Kirkuk and Babylon, and slight difference over Baghdad, Mosul and Al-muthana. The monthly SO2 anthropogenic emissions values shows relatively stable over most stations, and the only fluctuation over Babylon and Kirkuk during study period. Observed higher SO2 values in the winter and spring than its values in the summer. This research pretends the satellites observation efficiently shows the spatial and temporal variations of SO2 for the considered study area","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83931440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Riad M. Hameed, A. Al-Haddad, Abbas K. H. Albarazanchi
Three samples of high ordered AAO template were prepared via a two-step anodization procedure, the pore size was modified during the pore-widening process to tune the pore diameter to 50, 70, and 90 nm. Scanning electron microscopy (SEM) was adopted to gauge the pore diameter and the cell unit of the periodical hexagonal structure of the prepared AAO templates. In addition, the UV-vis spectrometer shows the variation of the absorbance spectrum for each pore size of the prepared AAO templates. To prove that the pore diameter (PD) and the intermediate layer (IL) could enhance the absorbance of the materials, a Lumerical FDTD solution was used by involving the exact experimental conditions of the AAO template. The resulting data show that a specific pore diameter with a specific intermediate layer can improve the absorbance spectrum of the materials. Thus, the results could serve the applications related to solar energy conversion (antireflective and photocatalyst) and photonics.
{"title":"Pore Size Dependence of Optical Absorption Enhancement in Porous Anodic Aluminum Oxide","authors":"Riad M. Hameed, A. Al-Haddad, Abbas K. H. Albarazanchi","doi":"10.23851/mjs.v33i4.1203","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1203","url":null,"abstract":"Three samples of high ordered AAO template were prepared via a two-step anodization procedure, the pore size was modified during the pore-widening process to tune the pore diameter to 50, 70, and 90 nm. Scanning electron microscopy (SEM) was adopted to gauge the pore diameter and the cell unit of the periodical hexagonal structure of the prepared AAO templates. In addition, the UV-vis spectrometer shows the variation of the absorbance spectrum for each pore size of the prepared AAO templates. To prove that the pore diameter (PD) and the intermediate layer (IL) could enhance the absorbance of the materials, a Lumerical FDTD solution was used by involving the exact experimental conditions of the AAO template. The resulting data show that a specific pore diameter with a specific intermediate layer can improve the absorbance spectrum of the materials. Thus, the results could serve the applications related to solar energy conversion (antireflective and photocatalyst) and photonics.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76405496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, we relied on historical observations for the period between (2005-2020) for the Baghdad meteorological station, which is characterized by a hot, dry climate in summer and cold and rainy in winter, as it is an example of a subtropical region. The multiple linear regression equation was developed and improved to produce a formula that predicts maximum air temperature. This was done by relying on climatic elements, namely minimum air temperature, wind speed, and relative humidity, and entering them into the formula as independent inputs that have a direct impact on estimating the maximum air temperature also calculating the correlation coefficients for each of them. The bias of the model was calculated and its value was entered as the correction for errors that accompany the application of the model.
{"title":"Estimation of the Daily Maximum Air Temperature for Baghdad City Using Multiple Linear Regression","authors":"Hayder M. Al-Samarrai, M. Al-Jiboori","doi":"10.23851/mjs.v33i4.1168","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1168","url":null,"abstract":"In this paper, we relied on historical observations for the period between (2005-2020) for the Baghdad meteorological station, which is characterized by a hot, dry climate in summer and cold and rainy in winter, as it is an example of a subtropical region. The multiple linear regression equation was developed and improved to produce a formula that predicts maximum air temperature. This was done by relying on climatic elements, namely minimum air temperature, wind speed, and relative humidity, and entering them into the formula as independent inputs that have a direct impact on estimating the maximum air temperature also calculating the correlation coefficients for each of them. The bias of the model was calculated and its value was entered as the correction for errors that accompany the application of the model.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80888190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a proposed carbon dioxide Gas Sensing System of high precision, rapid reaction, compact size and low power consumption rate is presented based on the non-dispersive infrared (NDIR) measurement. This system used to determine CO2 gas concentration in air; it consists of the single broadband light source, U-shape tube optical path cavity as gas cell, thermopile detector, and microcontroller circuit. This study investigates the efficiency of the U-tube optical path cavity at CO2 gas concentrations ranging from (0-5000) ppm. The obtained results show that it has the better thermal response compare to the linear tube and exhibits high sensitivity by change the transmitted light intensity into analog voltage. The proposed system design can be used as an environmental monitoring sensor.
{"title":"Development of NDIR CO2 Gas Sensing System Based on U-Shaped Optical Cavity","authors":"Ibtehal F. Mahdi, M. Azzawi, Firas S. Mohammed","doi":"10.23851/mjs.v33i4.1184","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1184","url":null,"abstract":"In this paper, a proposed carbon dioxide Gas Sensing System of high precision, rapid reaction, compact size and low power consumption rate is presented based on the non-dispersive infrared (NDIR) measurement. This system used to determine CO2 gas concentration in air; it consists of the single broadband light source, U-shape tube optical path cavity as gas cell, thermopile detector, and microcontroller circuit. This study investigates the efficiency of the U-tube optical path cavity at CO2 gas concentrations ranging from (0-5000) ppm. The obtained results show that it has the better thermal response compare to the linear tube and exhibits high sensitivity by change the transmitted light intensity into analog voltage. The proposed system design can be used as an environmental monitoring sensor.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83857644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
By studying the impact of severe weather conditions on civil aviation flights at Iraqi international airports, data were obtained from the General Authority for Meteorology and Seismic Monitoring, the Iraqi Civil Aviation Authority, and Iraqi Airways, as daily data for Baghdad International Airport, Erbil Airport, Sulaymaniyah Airport, Najaf Airport, and Basra Airport. The frequency of occurrence of thunderstorms, dust storms, fog, and snow was calculated and analyzed depending on the extent of horizontal visibility to determine the hours of air closure and aircraft movement at all airports of the study. This paper also discussed the temperature and its effect on the take-off and landing processes, the results showed that Baghdad International Airport was greatly affected by the occurrence of fog, followed by the airports of Erbil and Sulaymaniyah and their impact by the occurrence of thunderstorms and snow, while both Najaf Airport and Basra International Airport were greatly affected by dust storms.
{"title":"Severe Meteorological Factors Affecting Civil Aviation Flights at Iraqi Airports","authors":"Oday F. Khayoon, O. Al-Taai","doi":"10.23851/mjs.v33i4.1179","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1179","url":null,"abstract":"By studying the impact of severe weather conditions on civil aviation flights at Iraqi international airports, data were obtained from the General Authority for Meteorology and Seismic Monitoring, the Iraqi Civil Aviation Authority, and Iraqi Airways, as daily data for Baghdad International Airport, Erbil Airport, Sulaymaniyah Airport, Najaf Airport, and Basra Airport.\u0000The frequency of occurrence of thunderstorms, dust storms, fog, and snow was calculated and analyzed depending on the extent of horizontal visibility to determine the hours of air closure and aircraft movement at all airports of the study.\u0000This paper also discussed the temperature and its effect on the take-off and landing processes, the results showed that Baghdad International Airport was greatly affected by the occurrence of fog, followed by the airports of Erbil and Sulaymaniyah and their impact by the occurrence of thunderstorms and snow, while both Najaf Airport and Basra International Airport were greatly affected by dust storms.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84058238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ghadeer Abdul Hadi Abdul Jabbar, A. Saeed, M. Al-Kadhemy
Using the cast technique thin films of poly (vinyl alcohol) (PVA) containing varying amounts of Zinc Oxide ZnO nanoparticles (0.001, 0.002, 0.003, 0.004 and 0.005) g were formed. Physical properties excluded structural; (X-Ray Diffraction) (XRD), Fourier Transform Infrared (FT-IR) spectroscopy and UV-Visible spectroscopy. XRD results showed the amorphous structure of PVA film and Hexagonal crystalline structure of ZnONPs, PVA/ZnO nanocomposite appears as pattern of PVA films so the peaks of ZnO don't appear in it. FTIR spectra reveled ZnONPs doesn't have any influence on polymer structure. The effects of the ZnONPs on optical characteristics of PVA like the absorption spectrum, transmission spectrum, energy band gap, absorption coefficient, extinction coefficient, refractive index, real and imaginary parts of dielectric constant has been studied using UV-Vis spectroscopy. This study demonstrates that increasing the number of ZnONPs has an effect on all of these parameters.
{"title":"Impact of ZnO Nanoparticle on the Structural and Optical Properties of Poly(vinyl alcohol) Film","authors":"Ghadeer Abdul Hadi Abdul Jabbar, A. Saeed, M. Al-Kadhemy","doi":"10.23851/mjs.v33i4.1194","DOIUrl":"https://doi.org/10.23851/mjs.v33i4.1194","url":null,"abstract":"Using the cast technique thin films of poly (vinyl alcohol) (PVA) containing varying amounts of Zinc Oxide ZnO nanoparticles (0.001, 0.002, 0.003, 0.004 and 0.005) g were formed. Physical properties excluded structural; (X-Ray Diffraction) (XRD), Fourier Transform Infrared (FT-IR) spectroscopy and UV-Visible spectroscopy. XRD results showed the amorphous structure of PVA film and Hexagonal crystalline structure of ZnONPs, PVA/ZnO nanocomposite appears as pattern of PVA films so the peaks of ZnO don't appear in it. FTIR spectra reveled ZnONPs doesn't have any influence on polymer structure. The effects of the ZnONPs on optical characteristics of PVA like the absorption spectrum, transmission spectrum, energy band gap, absorption coefficient, extinction coefficient, refractive index, real and imaginary parts of dielectric constant has been studied using UV-Vis spectroscopy. This study demonstrates that increasing the number of ZnONPs has an effect on all of these parameters.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84174934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Patients with Multiple sclerosis (MS) are presented with different degree of disability based on Expanded disability status scale (EDSS). Several studies reported that ABH non-secretors have higher prevalence in different auto-immune diseases, also platelets have a multi-form participation in development of MS. Therefore, this study aimed to assess the correlation of clinical manifestations in patients with platelet-activating factor (PAF), P-Selectin, matrix metalloproteinase-9 (MMP-9) and ABH secretor status. Fifty Iraqi patients with relapsing-remitting multiple sclerosis (RRMS) were enrolled and divided into two subgroups; 36 of them with no disability (D0), their EDSS score ranging between 0-1.5, and the rest 14 patients with different degrees of disability (D+), their EDSS score ≥ 2. Along with patients, 20 healthy subjects were involved to act as a control group. Results showed significant elevation of PAF, P-Selectin, and MMP-9 levels in patients compared with those in the control group. However, only PAF level in D+ patients is significantly higher than D0 and positively correlated with duration of disease and serum level of MMP-9. Moreover, the frequency of non-secretors among RRMS patients is significantly higher than those in the control group and have a higher level of MMP-9, so may act as a risk factor for getting MS disease via increasing the serum level of MMP-9.
{"title":"Assessment of Some Platelet Activating Markers and Secretory Status with Clinical Manifestations in Multiple Sclerosis Iraqi Patients","authors":"K. Salih, Ali Hamdan Abdullah, N. M. Sheaheed","doi":"10.23851/mjs.v33i3.1130","DOIUrl":"https://doi.org/10.23851/mjs.v33i3.1130","url":null,"abstract":"Patients with Multiple sclerosis (MS) are presented with different degree of disability based on Expanded disability status scale (EDSS). Several studies reported that ABH non-secretors have higher prevalence in different auto-immune diseases, also platelets have a multi-form participation in development of MS. Therefore, this study aimed to assess the correlation of clinical manifestations in patients with platelet-activating factor (PAF), P-Selectin, matrix metalloproteinase-9 (MMP-9) and ABH secretor status. Fifty Iraqi patients with relapsing-remitting multiple sclerosis (RRMS) were enrolled and divided into two subgroups; 36 of them with no disability (D0), their EDSS score ranging between 0-1.5, and the rest 14 patients with different degrees of disability (D+), their EDSS score ≥ 2. Along with patients, 20 healthy subjects were involved to act as a control group. Results showed significant elevation of PAF, P-Selectin, and MMP-9 levels in patients compared with those in the control group. However, only PAF level in D+ patients is significantly higher than D0 and positively correlated with duration of disease and serum level of MMP-9. Moreover, the frequency of non-secretors among RRMS patients is significantly higher than those in the control group and have a higher level of MMP-9, so may act as a risk factor for getting MS disease via increasing the serum level of MMP-9.","PeriodicalId":7867,"journal":{"name":"Al-Mustansiriyah Journal of Science","volume":"114 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79036948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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