Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(22)
- Kulakaç, Nurşen(13)
- Tonkaz, Duygu Erkal(9)
- Tonkaz, Mehmet(9)
- Baltaci, Cemalettin(8)
- Vural, Selvi(8)
- Yılmaz, Coşkun(7)
- Bayrakdaroglu, Serdar(6)
- Günen, Mehmet Akif(6)
- Karimullah, Suud Sarim(6)
- Türkkan, Tuğba(6)
- Şimşek, Ahmet Bahadır(6)
- Akyürek, Suat(5)
- Anaç, Halil(5)
- Avcı, İbrahim(5)
- Beder, Murat(5)
- Doğan, Melike Demir(5)
- Emirza, Elif Güzide(5)
- Gönan, Yavuz(5)
- Merddan, Kurtuluş(5)
- Tonkaz, Gokhan(5)
- Zaman, Tolga(5)
- Akar, Zeynep(4)
- Akdemir, Enes(4)
- Akçay, Serhatcan Berk(4)
- Altan, Aytaç(4)
- Anıl, Berna(4)
- Aydin, Aydanur(4)
- Bingol, Ozkan(4)
- Bozkurt, Ferhat(4)
- Ceylan, Halil Ibrahim(4)
- Dogan, Ramazan Ozgur(4)
- Doğan, Hasan(4)
- Gedikli, Eyup(4)
- Günay, Hamdi Furkan(4)
- Kaygusuz, Abdullah(4)
- Kayhan, Recep Fatih(4)
- Kenek, Gökhan(4)
- Kurt, Kemal(4)
- Köse, Aslı(4)
Yayınlar
- MakaleAçık Erişim2024Portfolio Construction with Market Multipliers: An Application in BIST
Yalçin, Selcuk
In the portfolio construction process, it is an important process to correctly identify the stocks to be included in the portfolio. There are different studies in the literature that use different valuation methods to determine the right stocks. This study uses the market multipliers method to determine the stocks to be included in the portfolio. In the study, it is investigated whether a return above the return of the Borsa Istanbul (BIST) 100 Index can be obtained with the portfolios to be formed using the market multipliers method. For this purpose, portfolios were formed by using 3 different market multipliers (P/E, FV/EBITDA, and M/B) among the companies in 12 different sectors in the BIST. 15 different portfolios were formed for 5 years and the performance of each portfolio was analyzed. Return and risk calculations of these portfolios were made and compared with the BIST 100 Index. In the study, all of the portfolios created using market multiples provided lower risk and higher returns compared to the BIST 100 Index. In particular, the portfolios constructed with F/K and PD/DD multipliers provided better results. AAsAa result of the study, it was concluded that it would be beneficial for investors to create portfolios by using F/K and PD/DD multipliers in portfolio construction processes.
AtıfOpenAlex1
İncele - MakaleAçık Erişim2024Decoding Inflation: Role of Institutional Quality in Türkiye Using Advanced Econometric Techniques
Çiçen, Yildirim Beyazit
Persistent inflation remains a significant economic challenge in T & uuml;rkiye. The causes of high inflation have been examined through various factors, including supply and demand, as well as monetary and fiscal policies. However, few studies have included institutional factors in their analyses. The objective of this study is to determine whether institutional quality affects inflation in T & uuml;rkiye. A novel and robust econometric analysis method is employed in this study. Between 2005 and 2019, the inflation rate, the International Country Risk Guide's (ICRG) Political Risk Rating index, which measures the quality of institutional structure, and the changes in currency exchange rate basket variables in T & uuml;rkiye were examined using the Fourier KPSS stationarity test and the Fourier Shin cointegration test. The results of the analysis indicate that inflation rate is co-integrated with institutional quality. The deterioration of institutional quality in T & uuml;rkiye between 2005 and 2019 has been associated with an increase in inflation. While the implicit inflation targeting period in the inflation targeting regime implemented in T & uuml;rkiye after 2002 was relatively successful, the explicit inflation targeting period failed to reduce inflation. The primary reason for the inability to achieve the specified inflation targets during these periods is the deterioration in the quality of institutions. It is also important to note that central bank independence is not immune to political influence and is one of the most important factors affecting inflation targeting.
AtıfOpenAlex2TR Dizin1İncele - MakaleAçık Erişim2024Babanzada's Methodological Critique of Mansurizada on the Subject of Polygamy
Gönan, Yavuz
Usul al-Fikh is a branch of science that aims to analyze the subjects within the scope of Islamic law according to a certain method and hierarchy. According to general and traditional acceptance, this hierarchy consists of the kitab, sunna, idjma. and kiyas, which are called al-adilla al-shar'iyya / al-adilla al-arb'.a. According to those who hold this view, this hierarchy should be taken into account when finding a solution to a legal problem. The above hierarchy also reflects the epistemological understanding of Islamic law, i.e., the source of knowledge and the method of its application. Accordingly, the source of knowledge is revelation, and reason functions as a method for understanding the verses and hadiths that reflect revelation. Since revelation is static and social demands and needs are variable or dynamic, people who will use reason, i.e. mudjtahids or jurists, have important tasks to perform in order to find solutions to these new situations. If we look at the history of Islamic jurisprudence, we will see many examples of the solutions that the mudjtahids developed for the new situations, demands, and needs that arose, as well as the quality of the method they used to develop these solutions. Throughout Islamic history, Muslim societies have experienced many events, such as the Crusades and the Mongol invasion, which have affected their social institutions and dynamics. These events have led to changes and transformations in Muslim societies, and Islamic law has tried to find solutions to the problems arising from these events. One of the greatest transformative (traumatic) forces facing Islamic societies is the phenomenon of Westernization and the social demands and needs it brings with it. During the final decades of the Ottoman Empire, particularly during the First and Second Constitutional Periods, the topics of 'family' and 'women' constituted some of the most pressing social concerns of the era. These issues, which were shaped by the process of Westernization, prompted considerable debate within the social sphere. The issue of polygamy, which has a legal dimension as well, is the most debated issue of this problem and has been the subject of a considerable number of articles both for and against it. Given the absence of legal regulation on family law in the Medjelle, which was regarded as the Civil Code of the period, there was a clear expectation and demand for the elimination of this deficiency. In response to these expectations, the Hukuk-i 'A'ile Karar-namesi was prepared in 1917 and entered into force. Prior to the decree's enactment, there were significant discussions among Ottoman intellectuals, including Babanzada Ahmad Na'im (1872-1934) and Mansurizada Sa'id Bey (1848-1921), particularly regarding polygamy. In these debates, there were those who argued that a law could be enacted to make monogamous marriage compulsory and prohibit polygamy. Conversely, there were also those who opposed this. Mansurizada, who considers polygamy to be an impediment to societal advancement as Babanzada asserts, posits that the legislative authority has the prerogative to prohibit polygamy by making monogamous marriage obligatory through legal regulation. He posits that the issue of polygamy falls within the purview of dja'iz, and that the legislator is thus empowered to enact legal regulations pertaining to a subject that falls within the scope of dja'iz. On the contrary, Babanzada posits that this matter is not within the purview of dja'iz, and thus the legislator is unable to enact legislation to restrict polygamy. In essence, the debate between them is a debate of method. It is evident that both intellectuals sought to persuade the public while presenting their views and employed certain methods to substantiate their views in the articles they wrote for this purpose. Mansurizada employs the syllogism method in the science of logic as a means of regulating polygamy through legal means. According to Babanzada, the use of such a method is to reverse the hierarchy of the al-adilla al-shar'iyya. Therefore, the assertion put forth by Mansurizada, namely that marriage with one spouse would be legally mandated, is problematic. He maintains that polygamy is subject to regulation through the kitab, sunna, idjma., and that it cannot be subjected to a new regulation using the method employed by Mansurizada. Otherwise, the legislator would be exceeding his authority and intervening in an area that is legally regulated by the Shari'ah. This is an untenable state of affairs. The present study will elucidate Babanzada's critiques of Mansurizada's methodology, which was predicated on the premise that polygamy could be constrained by legal regulation on the basis of Usul al-Fikh.
AtıfWoS1OpenAlex2TR Dizin2İncele - MakaleAçık Erişim2024Scopus SJRQ3Cultural Representation Practices and Meaning Production: Expression of Religious and National Values with Symbols
Kiziloglu, Sadiye Kotanli
The symbols that people use to express themselves are used as an indicator of national consciousness, holiness, faith and religion. The value and importance they attach to these forms of expression are embodied especially with some symbols, and they become an important means of expressing oneself. Each user has symbols that they use for different purposes. The use of accessories with symbols containing Islamic meaning or figures reflecting national values has become common, especially in recent times. It is observed that different figures are used by different users around us, and it is assumed that these uses have a value not only in terms of aesthetics but also in terms of communication. Based on this assumption, the study investigates how users use icons as a means of communication, the data obtained is evaluated in line with their own opinions, and the purposes of their use are tried to be revealed. In this context, the subject of the study is the use of religious and national symbols in the context of communication in daily life. In this study, the purpose or intention of the symbols used in a way that can express a meaning at the social level is analyzed through objects used in daily life in line with user opinions, and the importance of symbols in the context of communication is evaluated. In this context, the aim of the study is to determine for what purposes and in what way the symbols thought to represent religious and national values are used as a form of visual communication. In the study, it is questioned within which meaning patterns a person establishes his values, beliefs, thoughts or point of view, not verbally but non-verbally, with the use of symbols. In this context, it is aimed to reveal the users' purpose, intention or desire of using symbols in the context of communication. Qualitative research technique was used and three questions were asked to the users using the semi-structured interview technique. Users were determined by criterion sampling, one of the purposeful sampling types, and a total of 26 people, 10 of whom were women, were interviewed. The data obtained as a result of the interview was subjected to qualitative content analysis, and codes, categories and themes were identified while interpreting the data. Themes regarding the answers given for each category were interpreted in the context of communication. According to the results obtained from the study, symbols containing religious and national values are used by both male and female users along with accessories such as rings, necklaces, bracelets and watches. While the letter Allah and the letters Elif Vav are frequently used in the use of religious symbols, the symbols of the star and crescent, IYI, crescent, tugra, double-headed eagle, gray wolf are used to express national feelings. As a result, symbolic objects are designed to reflect national feelings and thoughts; as a means of spiritual satisfaction that provides peace and happiness; reflecting the ideological point of view and being a transmitter of social identity; have religious meaning and value as an indicator of faith it has been determined that it has purposes of use such as protection from evil eyes and being a means of psychological relaxation.
- MakaleYalnız künye2024Scopus SJRQ4A NEW HARVESTMAN GENUS RECORD OR TURKEY: KOVALIUS TCHEMERİS, 2023 (OPİLİONES: SCLEROSOMATIDAE, LEIOBUNINAE)1
Kurt, Kemal
The genus Kovalius is recorded as new for the Turkish harvestman fauna by the collection of Kovalius logunovi Tchemeris, 2023 from K & uuml;rt & uuml;n district of G & uuml;m & uuml;& scedil;hane province, Turkey. Brief morphological descriptions are provided for the newly record species. Also, the genital morphology of the female was described and photographed for the first time.
- MakaleYayıncıda açık erişim2024Scopus SJRQ4Solutions of linear Fredholm integral equations with the three- step iteration method
Cona, Lale; Sengül, Kadir
In this article, the solution of the second type of nonhomogeneous linear Fredholm integral equations is investigated using a three-step iteration algorithm. It has been shown that the sequences obtained from this algorithm converge to the solution of the mentioned equations. Morever, data dependency is obtained for the second type of nonhomogeneous linear Fredholm integral equations. This result is supported by an example.
AtıfOpenAlex2İncele - MakaleAçık Erişim2024Reflections on the Criticisms of Ibrahim al-Nakha'i (d.96/714)
Futsi, Ali
Although Ibrāhīm al-Nakhaʻī, one of the greatest representatives of the school of jurisprudence in Kufa in the second half of the first century A.H., was considered reliable and reputable both in his own time and among the scholars of later periods, he was subjected to the criticisms of some Ahl al-Hadith scholars. It noteworthy that a significant portion of these criticisms is directed towards al-Nakhaʻī's orientation as a hadith scholar rather than his identity as a jurist. For example, when the allegations against al-Nahāʾī that he rejected hadiths and that he had little semāʾ are examined, it can be said that he actually sought some criteria such as the conformity of the narrations to the practice of Kūfah in addation to some of the conditions he sought in the narrators. Therefore, these allegations are not supported by any data; on the contrary, they show that al-Nakhaʻī's method of receiving hadith was based on solid foundations. In addition, this situation shows that the school of Kūfah took a different approach to the evaluation of hadiths than the Ahl al-Hadith, who took a literal view of the issue. The reasons for al-Nakhaʻī's narration of ḥadīth in the sense the meaing are his jurisprudential orientation and his opposition to the writing of ḥadīth. This shows that he narrated hadith based on a jurisprudential methodology and that he was the pioneer of the school later known as the Hanafites in the first century of the Hijr, who approached hadith in a different way than the Ahl al-Hadith. The fact that al-Nakhaʻī focused on the jurisprudential parts of the ḥadith and did not use writing in narrating the ḥadith is among the main reasons for his tendency towards narration by meaning, while the absence of any criticism against al-Nakhaʻī except for the narration of Ibn Sīrīn (d. 110/729) shows that Ibn 'Awn's (d. 151/768) criticism did not go beyond a personal opinion. There is no explicit criticism of al-Nakhaʻī's mursal narrations other than the evaluation of their authenticity and weakness, and no critical commentary has been identified except Ibn Hajar's (d. 852/1449) statement that "he was a sika, but he used to mursal a lot". In the evaluations of the Ahl al-Hadith who criticized Ibrāhīm al-Nakhaʻī's mursal narrations, the influence of their approach to mursal narrations can be observed. Although it has been said that al-Nakhaʻī made mistakes in the Arabic language, it is not correct to say that someone whose name is included in the most authentic isnads and whose narrations with meaning are accepted by hadith scholars does not have a good command of Arabic. Moreover, al-Nakhaʻī is also Arab in terms of ancestry. His statement about Abū Hurayra (d. 58/678), "He is not a jurist," is prominent in a report quoted by al- Dhahabi (d. 748/1348). However, in other sources, these criticisms are presented in general terms and seen as a general tendency of the school of Kūfah. al-Nakhaʻī's statements generally reflect the views of the school of Kūfah and the focus of criticism is on the people of Kūfah rather than al-Nakhaʻī himself. The criticisms of Abū Hurayra's narrations were not limited to Hanafīs, but were also made by Ahl al-Hadith scholars on similar grounds. Therefore, if a criticism is to be made, it should be addressed within a general framework, not by reducing it to al-Nakhaʻī’s person. Although there are a few examples of al-Nakhaʻī's association with Shiʿism, it is not compatible with the Shiʿite sect in general. Dhahabi 's definitions show that al-Nakhaʻī should rather be evaluated within the framework of Ahl al-Sunnah. Ibn Qutayba's (d. 276/889) categorization of al-Nakhaʻī as a Shīʿī does not coincide with the Shīʿī understanding of later periods and leads to a wrong conclusion. There is not enough evidence for al-Nakhaʻī to be considered a Shīʿī, so it is not correct to attribute him to this sect. al-Nakhaʻī used ra'y in matters of jurisprudence, but he rejected this method in matters of faith and even argued that ra'y was bid'ah. While he generally used the word 'ra'y' for the bid'ah sects in matters of belief, he used ra’y in practical matters and produced solutions by making qiyās in matters about which there was no clear ruling. However, he adhered to the narrations in matters where there was a hadith. al-Nakhaʻī's devotion to narrations and his tendency to make qiyās in matters where there was no hadith played a major role in shaping the school of fiqh in Kūfah. In conclusion, it can be said that al-Nakhaʻī used ra'y and qiyās in fiqh, but he rejected these methods in matters of faith and adhered to the narrations.
AtıfWoS1OpenAlex1TR Dizin1İncele - MakaleYalnız künye2024Scopus SJRQ1Analysis of open channel flow with various layered vegetation using CFD, considering different near-wall treatment methods
Sibil, Rahim
PurposeThe purpose of this paper is to investigate the impact of near-wall treatment approaches, which are crucial parameters in predicting the flow characteristics of open channels, and the influence of different vegetation covers in different layers.Design/methodology/approachAnsys Fluent, a computational fluid dynamics software, was used to calculate the flow and turbulence characteristics using a three-dimensional, turbulent (k-e realizable), incompressible and steady-flow assumption, along with various near-wall treatment approaches (standard, scalable, non-equilibrium and enhanced) in the vegetated channel. The numerical study was validated concerning an experimental study conducted in the existing literature.FindingsThe numerical model successfully predicted experimental results with relative error rates below 10%. It was determined that nonequilibrium wall functions exhibited the highest predictive success in experiment Run 1, standard wall functions in experiment Run 2 and enhanced wall treatments in experiment Run 3. This study has found that plant growth significantly alters open channel flow. In the contact zones, the velocities and the eddy viscosity are low, while in the free zones they are high. On the other hand, the turbulence kinetic energy and turbulence eddy dissipation are maximum at the solid-liquid interface, while they are minimum at free zones.Originality/valueThis is the first study, to the best of the author's knowledge, concerning the performance of different near-wall treatment approaches on the prediction of vegetation-covered open channel flow characteristics. And this study provides valuable insights to improve the hydraulic performance of open-channel systems.
AtıfWoS2İncele - MakaleYalnız künye2024GAME THEORETICAL ANALYSIS OF THE FOOTBALL: INFERENCE FROM ENGLISH PREMIER LEAGUE
Cicen, Yildirim Beyazit
Football is a prevalent sport in the world. In this study, game-theoretical analysis is used to in the English Premier League and their results. In matches between equal teams, the Nash equilibrium is a draw, whereas in matches between strong and weak teams, the Nash equilibrium is the strong team's defeat. The average of winning the match and the average of goals scored were not high enough, indicating that the teams did not take the field to win. As a result, it's created a goal-oriented proposal in the study's final section. In this proposal, matches will be limited to 60 minutes. game, ending in that minute.
- MakaleAçık Erişim2024The Effect of Servant Leadership on Work Engagement: The Mediating Role of Person-Organization Fit
Kenek, Gokhan
This study aimed to explore the relationship between servant leadership and work engagement and investigate the mediating role of personorganization fit in this relationship. The research was conducted in July 2023 on blue-collar employees in the glass industry in the Marmara Region. A total of 266 employees participated in the survey. Confirmatory factor analyses (CFA) were conducted using the MPLUS7 package program, and hypotheses were tested using the SPSS26 program. The results of the analyses indicated that servant leadership positively influences person-organization fit and work engagement. Additionally, it was found that person-organization fit increases work engagement. Furthermore, it was revealed that person-organization fit partially mediates the effect of servant leadership on work engagement.
AtıfOpenAlex1İncele - MakaleAçık Erişim2024Relationship between Organic Agriculture And GDP Per Capita, Economic Growth, and Unemployment: Panel Data Analysis
Merdan, Kurtulus
The increase in the world population recently has also increased the need for agricultural products. The need for food products has made it necessary to obtain more products per unit area. At this point, producers have focussed on the use of hormones, chemicals, and fertilisers to increase productivity and meet the demand for cheap food, and the process that increases production in the short term has become a threat to human health in the long term. Over time, the negative effects of chemicals on humans and the environment were observed, forcing producers to seek new methods. This process has led to independent studies on organic agriculture in every country. In this study, the effects of organic agriculture on some economic variables were revealed. In this context, the analyses focus now the variables of area allocated to organic agriculture on a regional basis, production amount and number of producers affected GDP per capita, economic growth, and unemployment in Turkey between 2003 and 2021. The scientific dimension of the study was prepared using data obtained from domestic and foreign literature and the electronic database of the Ministry of Food, Agriculture and Livestock. In this study, in which panel data analysis was used, EViews 12 programme was employed. For the variables used in the study, the geographical region cross-section dependence was determined, and the stationarity of the series was examined with the CIPS (Cross-Sectionally Augmented IPS) unit root test. As a result of the study, it was determined that organic production amount, number of organic farmers, and organic production area did not have a significant effect on economic growth and unemployment. Organic production area and the number of organic farmers had a positive and significant effect on GDP per capita, but the amount of organic production did not have a significant relationship
AtıfWoS5OpenAlex3İncele - MakaleYalnız künye2024Scopus SJRQ2Analyzing the linkage between Islamic financial literacy and Islamic banking services adoption: evidence from Turkey
Pala, Fahrettin; Erdogdu, Aylin; Ali, Muhammad; Alnori, Faisal; Barut, Abdulkadir
PurposeThe purpose of this study is twofold. First, this research explores the level of Islamic financial literacy of customers in the context of Islamic banking. Second, this study examines the determinants of customer adoption of Islamic banking in Turkey. Design/methodology/approachThis study gathered sample data from 409 participants determined using the purposive sampling method. In the study, first, the reflective measurement model is used to examine the reliability, validity and multicollinearity problems of the variables. Then, AMOS structural equation model (SEM) is used to reveal the relationship between Islamic financial literacy and Islamic banking services. Additionally, this study performed both descriptive and inferential analysis to understand customer literacy about Islamic banking and their adoption behavior of Islamic banking. FindingsThe results obtained from descriptive assessment indicate that Turkish customers of Islamic banking possess sufficient literacy about Islamic banking. Moreover, the results from SEM indicate that the adoption of Islamic banking by customers is significantly predicted by the role of Sharia Board management, Islamic banking and purpose of financial institution, religious factor and legitimacy of Islamic financial system. Research limitations/implicationsThis study focuses only on the level of knowledge and perceptions of customers who have accounts in Islamic banks or financial institutions in Turkey. It does not focus on the level of knowledge and perception of Muslims who do not have accounts in Islamic banks and financial institutions. Originality/valuePrevious studies on Islamic banking are mostly studies that investigate customers' perceptions of the Islamic banking system and why individuals prefer Islamic banks. In particular, studies examining the relationship between individuals' Islamic financial literacy level and Islamic banking preferences are limited. This study is considered to be an original study as it investigates the relationship between the Islamic financial literacy level of individuals and their adoption of Islamic banking services in Turkey.
AtıfWoS14OpenAlex24İncele - MakaleYalnız künye2024THREE BRYOPHYTE SPECIES NEW TO TURKIYE AND SOUTHWEST ASIA
Batan, Nevzat; Erata, Huseyin; Ezer, Tulay; Alatas, Mevlut
As a result of extensive bryophyte surveys across the different parts of the Kar & ccedil;al Mountain, T & uuml;rkiye's first biosphere reserve area, Artvin region (Caucasus) in the East Heterocladium flaccidum found as new to T & uuml;rkiye. Moreover, these taxa are the first time reported for bryophyte flora of South-West Asia in this paper. Descriptions, illustrations, distributions, ecological characteristics, and comparisons with morphologically similar taxa were also provided.
AtıfWoS3İncele - MakaleAçık Erişim2024Scopus SJRQ2Psychometric validation of the Persian version of Philanthropy Scale in university students
Güngör, Sunay; Ersanli, Ercumend; Karimi, Kambiz; Öztürk, Mesut
In this study, we culturally adapted the Philanthropy Scale for Iranian university students, assessing its validity and reliability. Our sample included 600 students from Tehran and Tabriz universities. Confirmatory Factor Analysis (CFA) validated the three-factor model, demonstrating excellent fit values. Internal consistency, measured by Cronbach's Alpha, was alpha = .838 for the total score. Sub-dimensions had values of alpha = .812 (not being self-seeking and being sincere), alpha = .745 (love and unconditional acceptance), and alpha = .689 (honesty). Spearman-Brown correlation coefficients, assessed via the split-half method, were r = .825 for the total score, r = .757 (not being self-seeking and being sincere), r = .705 (love and unconditional acceptance), and r = .769 (honesty). These results signify robust reliability.
AtıfWoS2OpenAlex2İncele - EditoryalYalnız künye2024Scopus SJRQ3Xanthogranulomatous pyelonephritis: Bear's paw sign
Tonkaz, Gokhan; Tonkaz, Mehmet; Tonkaz, Duygu Erkal; Ay, Mutlu; Pirimoglu, Rustem Berhan
AtıfWoS1OpenAlex1
İncele - MakaleAçık Erişim2024The Effect of Conjunctiva-Müller Muscle Resection on Tear Oxidative Stress Levels in Patients with Blepharoptosis
Sert, Seda; Araca, Ceyhun; Mergen, Burak; Ekmekçi, Ozlem Balca
Objectives: To examine changes in tear oxidative stress levels and tear film functions in patients with blepharoptosis and dermatochalasis following conjunctiva-M & uuml;ller muscle resection (CMMR) and blepharoplasty surgeries. Materials and Methods: This prospective study included 32 healthy controls and 62 patients with blepharoptosis or dermatochalasis. CMMR surgery was performed in 20 eyes and upper blepharoplasty was performed in 42 eyes. Tear oxidative stress markers (8-hydroxy-2'-deoxyguanosine [8-OHdG3 and 4-hydroxy-2-nonenal [4-HNE3) were quantified by enzyme -linked immunosorbent assay and tear film functions were evaluated preoperatively and at 1 and 6 months postoperatively. The same assessments were performed in the control group at the same time points. Results: Preoperative tear 8-OHdG and 4-HNE levels were lower in healthy controls (52.8 +/- 13.5 ng/mL and 27.8 +/- 6.4 ng/mL, respectively) compared to patients with dermatochalasis (86.1 +/- 37.2 ng/mL and 29.8 +/- 11.1 ng/mL, respectively) and blepharoptosis (90.4 +/- 39.3 ng/mL and 43.1 +/- 4.2 ng/mL, respectively) (p<0.001). 8-OHdG levels were increased at 1 month after CMMR, while both markers were decreased 1 month postoperatively in the blepharoplasty group (p=0.034). Schirmer 1 and OSDI scores did not change throughout the visits in both patient groups, but a temporary decrease in tear break-up time (TBUT) was observed after CMMR (p=0.017). Conclusion: Dermatochalasis and blepharoptosis were associated with higher tear oxidative stress levels. CMMR surgery caused a temporary decrease in TBUT scores and an increase in oxidative stress in the first postoperative month.
AtıfOpenAlex1İncele - MakaleAçık Erişim2024Scopus SJRQ1Isometric Shoulder and Hip Strength Impact on Throwing Velocity and Reactive Strength
Kayhan, Recep Fatih; Terzi, Esranur; Bayrakdaroglu, Serdar; Ceylan, Halil Ibrahim; Biyikli, Turker
The aim of the study is to examine relationships between shoulder extension-flexion and internal-external rotation strength of professional male handball players with throwing velocity, and the hip extension-flexion strength with horizontal and vertical reactive strength index. Fifteen professional male handball players participating in 1 st League matches took part in the study. The results showed that isometric shoulder flexion and extension strength significantly predicted stable throwing velocity (r (2 )=between 0.27-0.73) and dynamic throwing velocity (r( 2) =between 0.30-0.62). In addition, isometric internal and external rotation strength significantly predicted stable throwing velocity (r (2) =between 0.32-0.54) and dynamic throwing velocity (r (2) =between 0.31-0.44). Moreover, isometric hip extension and flexion strength significantly predicted vertical reactive strength index (r( 2) =between 0.31-0.45) and horizontal reactive strength index (r (2) =between 0.26-0.42). In conclusion, it was observed that shoulder strength has an enhancing effect on handball players' throwing velocity, while hip strength is a determining factor for the reactive strength index. In this context, it is assumed that shoulder weakness during throwing will affect the accuracy and velocity of throwing by disrupting the angular momentum, while weakness in the hip during the jump phase of the throwing motion will negatively affect the explosive power by limiting stabilization during landing.
AtıfWoS4OpenAlex6İncele - MakaleYalnız künye2024Scopus SJRQ2Effect of Atherogenic Index of Plasma on Pre-Percutaneous Coronary Intervention Thrombolysis in Myocardial Infarction Flow in Patients With ST Elevation Myocardial Infarction
Aydinyilmaz, Faruk; Özbeyaz, Nail Burak; Guliyev, Ilkin; Algül, Engin; Sahan, Haluk Furkan; Kalkan, Kamuran
Dyslipidemia is an important risk factor for cardiovascular morbidity and mortality. Although low-density lipoprotein (LDL) is primarily responsible, the importance of triglyceride (TG) and high-density lipoprotein (HDL) has also been recognized. The present study investigated the effect of the atherogenic index of plasma (AIP), in which atherogenic and protective lipoproteins were evaluated together, on the initial flow in patients with ST elevation myocardial infarction. AIP was calculated as log(TG/HDL-cholesterol). Patients included in the study (n = 1535) were divided into Thrombolysis in Myocardial Infarction (TIMI) flow grade 0 and >0. AIP was found to be significantly different between 2 groups (.55 & PLUSMN; .23 vs .67 & PLUSMN; .21; P < .001). AIP was an independent predictor for pre-intervention TIMI flow (Odds Ratio: 2.778). A moderate correlation was found between TIMI frame count measurements, calculated in patients with TIMI 2-3, and AIP (Pearson correlation coefficient: .63, P < .001). In the receiver operating characteristic analysis, AIP showed the highest area under curve (AUC) compared with other lipid parameters for predicting vascular patency. The AUC of AIP was .634, the cut-off value was .59, and the sensitivity and specificity were 67.6% and 68.4%, respectively (P < .001). In conclusion, AIP was found to be an important marker affecting pre-percutaneous coronary intervention TIMI flow.
AtıfWoS10OpenAlex13İncele - MakaleYalnız künye2024Scopus SJRQ2Psychosocial Dimension of Substance Use Disorder
Ediz, Cicek; Uzun, Sevda; Erdas, Mehmed Burak
This study used a phenomenological research approach to investigate the experiences of individuals in an eastern Turkey city who initiated substance use during childhood. Fourteen participants were selected using criterion sampling and engaged in semistructured, in-depth interviews. The interviews were recorded and transcribed, and a thematic analysis was applied to the data. The study revealed 3 overarching categories (reasons leading to substance use, effects of substance addiction, and coping with addiction) and 9 subthemes (familial factors, environmental factors, traumatic experiences, personal factors, psychological effects, physical effects, social effects, perception of social support, and treatment process). (c) 2023 Elsevier Inc. All rights reserved.
AtıfWoS2OpenAlex2İncele - MakaleAçık Erişim2024Scopus SJRQ1The Association Between Glycemic Variability and Mortality in Critically Ill Patients: A Multicenter Prospective Observational Study
Emgin, Omer; Yavuz, Mehmet; Sahin, Adem; Günes, Murat; Eser, Mustafa; Yavuz, Tunzala; Kökalan, Damla; Ergün, Bisar; Rollas, Kazim; Çakirgöz, Mensure Yilmaz
Background: Glycemic variability (GV) is a prevalent and significant condition observed in critically ill patients. This study aimed to investigate the relationship between early glycemic variability parameters and 28-day mortality in critically ill patients. Methods: A multicenter, prospective, and observational study was performed at five tertiary intensive care units (ICUs) in Turkey. All patients who had more than six blood glucose level (BGL) measures per 24 h were included. The parameters of GV including the SD, MGL, MGD (the difference between the maximal and minimal glucose level), and the CV (the percentage of SD to the MGL) in the first 24 h were recorded. Results: A total of 578 eligible patients were enrolled in the study, of whom 43.6% were women. The mean age of the patients was 68.09 +/- 16.62 years. Overall mortality was 31.5% (n = 182). The glycemic parameters of the CV, SD, and MGD were significantly higher in the non-survivor group than in the survivor group (p = 0.040, 0.006, and 0.002, respectively). The multivariate logistic regression analysis revealed that the CV (OR 1.023; 95% CI 1.004-1.042; p = 0.017) was an independent factor that increased mortality. Spearman's rho correlation analysis revealed a strong (r:0.871) and statistically significant correlation (p < 0.001) between the CV and MGD. Conclusions: The CV calculated within the first 24 h of ICU admission is independently associated with 28-day mortality. The MGD is correlated with the CV and is maybe a practical tool to predict increased risk of mortality at the bedside. However, further studies are needed to establish the independent association of the MGD with mortality.
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