Comprehensive Analysis of Oil Sludge from The Absheron Peninsula to Solve Environmental Problems

The Absheron Peninsula, historically known for its oil production, is home to several key oil fields including Bibi-Eybet, Balakhani, Surakhani and Ramana. Decades of oil production have resulted in the accumulation of significant quantities of oil sludge, which poses significant environmental and economic challenges. The objective of this study is to conduct a comprehensive chemical analysis of oil sludge from these fields using an Agilent Technologies ICP-OES 5810 for elemental analysis and a Cary 630 FTIR for molecular characterization. The results provide valuable information on the composition of these sludges, which can facilitate more effective remediation and disposal strategies

Microscopic Varicocelectomy Significantly Decreases the Sperm DNA Fragmentation Index in Patients with Infertility

Background. Varicocele is associated with high levels of DNA damage in spermatozoa due to oxidative stress and elevated levels of sperm DNA fragmentation, which has been currently proposed to be an essential additional diagnostic test to be recommended for patients with clinical varicocele. The aim of this study was to evaluate the parameters of semen and the DNA fragmentation index (DFI) in patients with varicocele before and after varicocelectomy.Methods. The details of 92 consecutive patients were retrospectively analyzed from January 2010 to December 2012. The sperm samples were evaluated according to the World Health Organization Guidelines. Sperm DNA damage, characterized as DFI, was evaluated by sperm chromatin structure assay using flow cytometry.Results. There was a statistically significant improvement in the semen concentration, the total motile count, the total normal sperm count, and the sperm DNA fragmentation index (DFI; the percentage of sperm with denatured DNA) after varicocelectomy. There was a large decrease in DFI from a preoperative mean of 42.6% to a postoperative mean of 20.5% (P&lt;0.001). A higher preoperative DFI was associated with a larger decrease in postoperative DFI, and significant negative correlations were observed between the DFI and sperm motility (r=-0.42,P&lt;0.01).Conclusion. Our data suggest that varicocelectomy can improve multiple semen parameters and sperm DNA damage in infertile men with varicocele. The patients with preoperative defects in those parameters showed greater improvement postoperatively. Further research in this area is needed to understand the exact mechanisms of DNA damage in infertile men with varicocele.</jats:p

The relationship between self-esteem and vandalism on high school students Lise öğrencilerinin özsaygı ve tahripçi davranışları arasındaki ilişki

This study aims to determine the relationship between self-esteem and vandalism levels of on high school freshmen students. The data of this correlational study was obtained through the Vandalism Scale, Coopersmith Self-Esteem Scale and Personal Information Form developed for his study. The sample of this research consists of 1225 students in public high schools freshmens in the Şanlıurfa province and district centers. Of the whole research group, 587 are female and 638 are male students. The relationship between the vandalism and self-esteem levels of student was investigated with the Pearson Product-Moment Correlation Coefficients. In addition, the calculations on the self-esteem of students predicting their vandalism levels were carried out with the simple regression analysis. Analyzing the binary correlation between vandalism and self-esteem, it was found that the relationship was negatively and significantly. In predicting vandalism scores from all the variables in the study, the self-esteem scores of students with the simple regression analysis, self-esteem scores explained the 3% of the total variance in vandalism scores. Negative correlation between these two variables indicates that individuals having high self-esteem have less vandalism tendencies. ÖzetBu araştırmanın amacı, lise birinci sınıf düzeyinde eğitim gören öğrencilerin tahripçilik ve özsaygıları arasındaki ilişkinin belirlenmesidir. Korelasyonel türden bir çalışma olan bu araştırma verileri Tahripçilik Ölçeği, Coopersmith Özsaygı Ölçeği ve geliştirilen Kişisel Bilgi Formu ile elde edilmiştir. Araştırmanın örneklemi, Şanlıurfa ili ve ilçe merkezlerinin devlet okullarının genel liselerinde okuyan 1225 lise birinci sınıf öğrencileri oluşturmaktadır. Bunların 587’si kız, 638’i ise erkek öğrencilerden oluşturmaktadır. Öğrencilerin özsaygı düzeylerinin tahripçi davranışlarını yordama gücü basit regresyon analizi ile incelenmiştir. Öğrencilerin özsaygı ölçeği puanlarının tahripçilik puanlarındaki varyansın %3'ünü açıkladığı bulunmuştur. Bu iki değişken arasındaki ilişkinin negatif olması özsaygısı yüksek bireylerin tahripçi davranışlarının daha az olduğunu göstermektedir

Costs and Benefits of Labour Mobility between the EU and the Eastern Partnership Partner Countries - Country Report: Azerbaijan

This Report is one of the six studies in the first phase of the EU project on the "Costs and Benefits of Labour Mobility between the EU and the Eastern Partnership Partner Countries". It aims at providing an informed view of the potential for increased migration flows and their consequences as a result of possible changes in the migration policies of the European Union with regard to Azerbaijan. The Report is comprised of 7 Chapters. Chapters 1 and 2 provide a discussion of relevant developments in the economy and labour market in the period since independence, with emphasis on developments over the last ten years or so. Chapter 3 provides a detailed discussion of trends in migration, and discusses the labour migration profile. Chapter 4 analyses remittances and their impact on income, investment and consumption. Chapter 5 provides a discussion of the available evidence on the costs and benefits of labour migration, emphasising the economic, social and demographic costs and consequences. Chapter 6 discusses current migration policies and institutions, while Chapter 7 discusses various factors that may be useful in forecasting key migration trends in the future

Grup III monokalkojenür nanoşeritlerin yapısal, elektronik ve manyetik özellikleri

Cataloged from PDF version of article.Includes bibliographical references (leaves 55-66).Owing to the promising optoelectronic and thermoelectric properties of two-dimensional (2D) group III–VI materials (MXs), their nanoribbons (NRs) have attracted notable attention as an emerging class of quasi-one-dimensional (quasi-1D) nanostructures. Due to the fact that the most stable 2D monolayer polymorph of MXs is the 1H phase, to date, existing studies in the literature have predominantly focused on the NRs formed from 1H phase MXs. Nevertheless, NRs of the 1T phase have received little to no attention. Employing ab initio simulations based on density functional theory, we systematically compared the thermodynamic stability of hydrogen-passivated and unpassivated 1T and 1H zigzag (ZNR) and armchair (ANR) edge NRs of GaS, GaSe, and InSe. Our results reveal that nonpolar 1T phase MX ZNRs are thermodynamically more favorable than polar 1H MX ZNRs at widths up to 34 nm, a range that is realizable through contemporary experimental fabrication techniques. On the other hand, as both 1H and 1T ANRs are nonpolar, 1T is more favorable only in unpassivated cases in very narrow widths of up to 3.3nm in the case of InSe ANRs. Furthermore, unlike metallic 1H ZNRs, 1T ZNRs remain semiconductors and retain Mexican-hat-shaped (MHS) top valence bands. Complementarily, hydrogenation energies of 1T InSe NRs are positive, and due to the edge-localized states, the 1T unpassivated ZNRs possess nearly flat top valence bands. These electronic properties present compelling opportunities for exploiting 1T MX NRs in spintronic applications. We demonstrate that, upon hole doping, these MX NRs develop itinerant magnetization across a broad range of carrier densities and display half-metallic behavior, with only one spin channel intersecting the Fermi level. Moreover, the spin-polarization energies (SPE) of these NRs increase remarkably relative to their 2D counterparts, indicating stronger stability of the ferromagnetic state. We elucidate that the SPE of NRs strongly depends on the degree of edge-localization of the carriers along the width of NRs, which in turn depends on the edge passivation, width, and edge shape of NRs. Overall, this study highlights the critical interplay between the thermodynamic favorability of the novel 1T phase MX NRs below certain critical widths and the resulting electronic and magnetic properties, which together enable their promising applications in spintronics and nanoelectronics.by Emin Aliye

The relationship between self-esteem and vandalism on high school students &lt;p&gt; Lise öğrencilerinin özsaygı ve tahripçi davranışları arasındaki ilişki

&lt;p&gt;This study aims to determine the relationship between self-esteem and vandalism levels of on high school freshmen students. The data of this correlational study was obtained through the Vandalism Scale, Coopersmith Self-Esteem Scale and Personal Information Form developed for his study. The sample of this research consists of 1225 students in public high schools freshmens in the Şanlıurfa province and district centers. Of the whole research group, 587 are female and 638 are male students. The relationship between the vandalism and self-esteem levels of student was investigated with the Pearson Product-Moment Correlation Coefficients. In addition, the calculations on the self-esteem of students predicting their vandalism levels were carried out with the simple regression analysis. Analyzing the binary correlation between vandalism and self-esteem, it was found that the relationship was negatively and significantly. In predicting vandalism scores from all the variables in the study, the self-esteem scores of students with the simple regression analysis, self-esteem scores explained the 3% of the total variance in vandalism scores. Negative correlation between these two variables indicates that individuals having high self-esteem have less vandalism tendencies.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;&lt;strong&gt;Özet&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;Bu araştırmanın amacı, lise birinci sınıf düzeyinde eğitim gören öğrencilerin tahripçilik ve özsaygıları arasındaki ilişkinin belirlenmesidir. Korelasyonel türden bir çalışma olan bu araştırma verileri Tahripçilik Ölçeği, Coopersmith Özsaygı Ölçeği ve geliştirilen Kişisel Bilgi Formu ile elde edilmiştir. Araştırmanın örneklemi, Şanlıurfa ili ve ilçe merkezlerinin devlet okullarının genel liselerinde okuyan 1225 lise birinci sınıf öğrencileri oluşturmaktadır. Bunların 587’si kız, 638’i ise erkek öğrencilerden oluşturmaktadır. Öğrencilerin özsaygı düzeylerinin tahripçi davranışlarını yordama gücü basit regresyon analizi ile incelenmiştir. Öğrencilerin özsaygı ölçeği puanlarının tahripçilik puanlarındaki varyansın %3'ünü açıkladığı bulunmuştur. Bu iki değişken arasındaki ilişkinin negatif olması özsaygısı yüksek bireylerin tahripçi davranışlarının daha az olduğunu göstermektedir.&lt;/p&gt;</jats:p

Microscopic Varicocelectomy Significantly Decreases the Sperm DNA Fragmentation Index in Patients with Infertility

Background. Varicocele is associated with high levels of DNA damage in spermatozoa due to oxidative stress and elevated levels of sperm DNA fragmentation, which has been currently proposed to be an essential additional diagnostic test to be recommended for patients with clinical varicocele. The aim of this study was to evaluate the parameters of semen and the DNA fragmentation index (DFI) in patients with varicocele before and after varicocelectomy. Methods. The details of 92 consecutive patients were retrospectively analyzed from January 2010 to December 2012. The sperm samples were evaluated according to the World Health Organization Guidelines. Sperm DNA damage, characterized as DFI, was evaluated by sperm chromatin structure assay using flow cytometry. Results. There was a statistically significant improvement in the semen concentration, the total motile count, the total normal sperm count, and the sperm DNA fragmentation index (DFI; the percentage of sperm with denatured DNA) after varicocelectomy. There was a large decrease in DFI from a preoperative mean of 42.6% to a postoperative mean of 20.5% (P < 0.001). A higher preoperative DFI was associated with a larger decrease in postoperative DFI, and significant negative correlations were observed between the DFI and sperm motility (r = -0.42, P < 0.01). Conclusion. Our data suggest that varicocelectomy can improve multiple semen parameters and sperm DNA damage in infertile men with varicocele. The patients with preoperative defects in those parameters showed greater improvement postoperatively. Further research in this area is needed to understand the exact mechanisms of DNA damage in infertile men with varicocele