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The Usability of Crab Apple (Malus floribunda) Anthocyanins as a Natural Colorant in Apple Marmalade
No full textIn this study, the usability of crab apple as a natural food colorant for apple marmalade was investigated. Marmalades were stored at 9, 22, and 35 °C for 6 months and analyzed some physicochemical and biochemical parameters. Titratable acidity decreased with the increase of storage temperature and time in marmalades compared to the initial values. As the storage temperature and time increased, the lightness (L*), redness (a*), chroma (C*) values of the samples decreased, while the hue angle (h) and yellowness (b*) values increased. The increase in temperature and time during the storage period caused a significant decrease in total phenolic content, total monomeric anthocyanin, and antioxidant activity values. The degradation of anthocyanins during storage occurred according to first-order reaction kinetics. According to the results obtained, the addition of crab apple juice concentrate allowed the desired level of color to be formed in apple marmalade as well as a functional product
Size-selective microplastic uptake by freshwater organisms: Fish, mussel, and zooplankton
No full textMicroplastics, as an emergent pollutant, have garnered substantial attention within aquatic environments, yet a significant knowledge gap persists regarding the interplay of organism size and pollution impacts on microplastic uptake in freshwater ecosystems. The main aim of the current study is to assess the microplastic ingestion by aquatic organisms across diverse trophic levels. To achieve this objective, zooplankton, mussels (Anodonta anatina), and fish (Carassius gibelio) were collected from the highly polluted Susurluk River Basin in Türkiye. The size distribution encompassed 160.8 ± 56.9 μm for the prevailing zooplankton, 6.9 ± 2.2 cm for mussel, and 20.4 ± 3.1 cm for fish, respectively. While no microplastic ingestion was observed among zooplankton, the finding highlights the influence of body-size and pollution on microplastic ingestion. In contrast, A. anatina and C. gibelio contained 617 and 792 microplastic particles, respectively. Predominantly, fibers emerged as the most prevalent microplastic type across trophic levels (except zooplankton) followed by films. Notably, only fish exhibited fragments within their gastrointestinal tract. A substantial correlation emerged between microplastic abundance and mussel size and weight, but no such correlation manifested for fish. The study also revealed a positive link between microplastic count and turbidity (phosphate and high Chl a level), impacting mussel ingestion capacity due to the variability in the food availability and potential shifts in feeding preferences. Conversely, no distinct pattern emerged for fish concerning water quality parameters and ingested microplastics. Consequently, our study underscores diverse microplastic uptake patterns in freshwater ecosystems, with a predominant frequency of microplastics falling with the 0.3 mm–3.0 mm range, emphasizing the significance of size-selective uptake by organisms
Rigidity results for submanifolds in generalized Sasakian space forms
Get PDFIn this article, generalized Saasakian space forms are discussed and invariant submanifolds of these space forms are examined. The curvature tensor chosen is of great importance when examining the characterization of a manifold. In this article, invariant submanifolds of generalized Sasakian space forms are characterized according to the W*0−curvature tensor and pseudoparallel submanifolds are investigated for these space forms
The ritualistic function of dance as a game in the epic epics of the Turkic world
Get PDFİnsanlar, duygu ve düşüncelerini anlatmak için oyunu bir araç olarak kullanmışlardır. Her toplumun tarihî geçmişi vardır. Toplumların tarihî geçmişini yansıtan sözlü ürünlerden biri de destanlardır. Türk destanlarındaki oyunlar; oyun icracılarının fikirlerini, düşüncelerini yansıtır. Bazı oyunlar sözle icra edilirken bazıları sözsüzdür. Sözsüz oyunlardan olan dans, ilk göze çarpandır. Dans, kökeni uzun zaman öncesine dayanan müzik eşliğinde yapılan ritmik ve bedensel hareketlerdir. Dans, dünyada var olduğundan bugüne kadar bütün çağlarda ve toplumlarda var olmuştur. Geçmişle bağ kurmada ve kültürel belleğin aktarılmasında bir araç olarak görülmektedir. Özellikle dansın yapıldığı mekânlarda bir iletişim ortamı oluşmaktadır. Dans ortamı, kültürün aktarımını ve bireylerin sosyalleşmesini sağlamaktadır. Dans, hem toplumların kendi kültürlerini yaşattıkları, hem de icra ortamlarında kültürel imgelerini yansıtan, izlenim oluşturan bir simgedir. Günümüzde salt eğlence işlevine indirgenmiş olan dans, gündelik yaşam içinde de toplumsal hafızanın korunması, yeniden yaşatılması için bir bağlam oluşturmaktadır. Türk kültüründe geçmişten günümüze kadar gerçekleştirilen danslar; içeriği, zamanı, mekânı, icracıları ve izleyicileri bakımından farklı işlevlere sahiptir. Dans, bir kültürdür; çalışmanın amacı ise dansın ritüelistik işlevinin tayin edilmesidir. Bu amaçla çalışmada dansın ritüelistik kökeni üzerinde durularak yöntemi, amacı, aracı, uygulayıcısı, mekânı, zamanı ve anlamı açısından büyüyle ilişkisinin çerçevesi çizilecektir. Türk dünyası destanlarında dansın bir ritüel olarak hangi durumlarda yer aldığı belirlenecek ve kurgudaki rolü anlaşılmaya çalışılacaktır. Ele alınan destanlarda tespit edilen danslar, ritüelistik işlev kapsamında incelenmiş ve dansların kültürel bellekteki yeri saptanmıştır. Dans, icra edildiği her bağlamda yaşatılan kültürün bir biçimi ve geçmişle bağının kurulduğu kültürel bir bellektir. İncelenen destanlardaki dansların ritüelistik işlevden başka dikkat çekme, etkileme, büyüleme işlevleri bulunmaktadır. Ritüeller, bir yandan kültürü yaşatırken bir yandan da tekrarlanan davranışlar ve bir hatırlama biçimi olarak geçmişle bağ kurar ve kültürel belleği canlı tutar. Bir ritüel olarak icra edilen danslar kültürel belleğin yeniden inşasına izin verir.One of the oral products reflecting the cultural memory of societies is epics. As an element of culture, the game is included in Turkish epics in many varieties. Some games are performed with words while others are performed without words. Dance, one of the non-verbal games, is the first to catch the eye. The origin of dance, which can be defined as rhythmic and bodily movements accompanied by music, dates back to ancient times. Dance has preserved its place in all ages and societies and has been a part of cultural activities since its existence in the world. Especially in dance venues, an environment of communication is created. Rituals, seasonal celebrations, entertainment, rites of passage and many other artistic activities involve dance. The performance environment of dance enables the transmission of culture and the socialization of individuals. Dance is a symbol through which societies both keep their own culture alive and reflect their cultural images in performance environments, creating impressions. Today, dance, which has been reduced to a purely entertainment function, also constitutes a context for the preservation and revitalization of social memory in everyday life. Evaluating dance in its context will enable it to point to a different dimension of culture and play. Depending on the context, the meaning of the dance may differ and the meanings attributed to the action may also change. Dance also has a magical quality and becomes an effective tool for rituals. In this respect, dance, which bears the traces of rituals, is also performed in places where magical elements are revived.Dances have different functions in terms of content, time, place, performers and audiences. The aim of this study is to determine the ritualistic function of dance in the epics of the Turkic world. The study will focus on the ritualistic origins of dance and outline its relationship with magic in terms of its method, purpose, medium, practitioner, space, time and meaning. The dances identified in the epics were analyzed within the scope of ritualistic function and the place of dances in cultural memory and their role in fiction were determined. Dance is a form of culture that is kept alive in every context in which it is performed and a cultural memory that connects with the past. Apart from ritualistic functions, the dances in the analyzed epics have the functions of attracting attention, impressing and mesmerizing. Rituals keep culture alive, while at the same time, as repeated behaviors and a form of remembrance, they connect with the past and keep cultural memory alive. Dances performed as a ritual allow the reconstruction of cultural memory
Dispersion characteristics of clayey soils containing waste rubber particles
Get PDFThe rubber-containing waste materials have been widely used to improve the engineering properties of soils in recent years. Among others, granular rubbers are utilized in various ways to increase the bearing capacity and shear strength and to reduce the settlement and liquefaction potential of soils. The granular rubbers have many advantages such as temperature resistance, flexibility, tear-resistance, non-slip, and thermal and electrical insulation. This study presents the distribution characteristics of five different types of clayey soils with different engineering properties containing waste rubber particles (WRPs). On the other hand, determining and controlling the dispersion characteristics of clayey soils is two significant engineering problems. The study aims to solve these two remarkable and problematic issues in an eco-friendly and safe way. The role of WRP treatment in the investigation of soil dispersion behavior, which can cause dangerous problems such as piping, erosion, and dispersion, reflects the original and different perspectives of this study. Within this scope, geotechnical parameters of the clayey soils were determined. Subsequently, pinhole test, crumb test, double hydrometer test, and scanning electron microscopy (SEM) analysis were performed on the Na-activated bentonite, refined ball clay, Ukrainian kaolin, Avanos kaolin, and Afyon clay samples with different percentages of WRPs (0%, 5%, 10%, and 15%). Consequently, Avanos and Ukrainian kaolin clays gave the most limited response to the dispersion behavior with the addition of WRP. Also, WRP treatment on the ball clay and bentonite samples showed limited efficiency. Afyon clay, which was defined as dispersive by the three tests that determined its dispersion potential, showed 3 level changes in the pinhole tests and 2 level changes in the crumb tests, and gave the most effective results in terms of WRP efficiency
Seropositivity of Cytomegalovirus, Rubella and Toxoplasma Gondii in Pregnant Women and IgG Avidity Tests
Get PDFSitomegalovirus (CMV), Rubella ve Toksoplasma gondii (T.gondii) enfeksiyonları, gebe kadınlarda, özellikle ilk trimesterde ortaya çıktığında fetusta konjenital malformasyona neden olmaktadır. Bu çalışmada gebelerde CMV, Rubella ve T.gondii seropozitifliğinin belirlenmesi amaçlanmıştır. Araçlar ve Yöntem: Temmuz 2019-Haziran 2021 tarihleri arasında, Aksaray Eğitim ve Araştırma Hastanesi Mikrobiyoloji Laboratuvarına başvuran gebelere ait CMV, Rubella ve T.gondii seropozitiflik oranları retrospektif olarak incelendi. Ayrıca bu dönemde çalışılan avidite test sonuçlarına bakıldı. Bulgular: Çalışmaya toplam 3218 gebe alındı. CMV, Rubella ve T.gondii IgM seropozitiflik oranları sırasıyla %1.9, %0.8 ve %1.4 iken, Ig G de bu oranlar, sırasıyla %97.3, %83.9, %21 dir. CMV’de ve Rubella’da örneklerin tamamının yüksek avidite olduğu saptandı. T.gondii’ de ise %93.7’si yüksek ve %6.7’si düşük avidite olduğu görüldü. Sonuç: Aksaray ilinde ilk kez bu çalışma ile CMV, Rubella ve T.gondii seropozitiflikleri belirlenmiştir. Bulduğumuz bu oranlar ülkemizdeki diğer çalışmalarla benzerlik göstermektedir. Yaş gruplarına göre CMV IgM ve IgG’de fark bulunamamış, Rubella’da ise yaşla beraber azalma saptanmıştır. T.gondii’de ise IgG’de yaşla beraber artış olduğu görülürken, IgM de oranın değişmediği görülmüştür.Cytomegalovirus (CMV), Rubella, and Toxoplasma gondii (T.gondii) infections cause congenital malformations in the fetus when they occur in pregnant women, especially in the first trimester. This study aimed to determine the seropositivity of CMV, Rubella, and T.gondii in pregnant women. Materials and Methods: CMV, Rubella, and T. gondii seropositivity rates of pregnant women who applied to the Aksaray Training and Research Hospital Microbiology Laboratory between July 2019 and June 2021 were evaluated. In addition, the avidity test results studied during this period were included in the study. Results: A total of 3218 pregnant women were included in the study. CMV, Rubella, and T.gondii IgM seropositivity rates were 1.9%, 0.8%, and 1.4%, respectively, and these rates for IgG were 97.3%, 83.9%, and 21%, respectively. All the samples were found to have high avidity in CMV and Rubella. In the T.gondii group, 93.7% of women had high, and 6.7% had low avidity. Conclusion: CMV, Rubella, and T.gondii seropositivity were determined for the first time in Aksaray province in this study. These rates we found are similar to other studies in our country. No difference was found in CMV IgM and IgG according to age groups, while a decrease was found in Rubella with age. In T.gondii, on the other hand, it was observed that there was an increase in IgG with age, while the rate did not change in IgM
An Overlooked Detail: Sleep and Quality of Life in Patients with Atrial Fibrillation
No full textThe aim of this study was to investigate sleep quality and quality of life, sociodemographic variables that may affect sleep quality, and the relationship between sleep and quality of life in patients with atrial fibrillation (AF). MATERIALS AND METHODS: This descriptive cross sectional study had a sample of 84 individuals (AF patients from April 2019-January 2020). The Patient Description Form, the Pittsburgh Sleep Quality Index (PSQI), and the EQ-5D health-related quality of life instrument were used to collect data. RESULTS: The mean total PSQI score was 10.72 (±2.73), we found that most of the participants (90.5%) had poor sleep quality. While there was a significant difference between the sleep quality and employment status of the patients, there was no significant difference between age, gender, marital status, education level and income status, comorbidity, family history of AF, continuously used medication, non-drug AF treatment, and AF duration (P > .05). The sleep quality of those working in any job was better than of their non-working counterparts. Regarding the correlation between sleep quality and quality of life, a medium-level negative correlation was found between the patients' total mean PSQI and EQ-5D visual analogue scale scores. However, no significant correlation was found between the total mean PSQI and EQ-5D scores. CONCLUSION: We found that sleep quality in patients with AF was poor. In these patients, sleep quality should be evaluated and taken into consideration as a factor that affects quality of life
Hesperidin has a protective effect on paclitaxel-induced testicular toxicity through regulating oxidative stress, apoptosis, inflammation and endoplasmic reticulum stress
No full textPaclitaxel (PTX) is widely used to treat a number of malignancies, although it has toxic side effects. Hesperidin (HES) has a wide range of biological and pharmacological properties, including anti-inflammatory and antioxidant abilities. This research aims to investigate the role of HES in PTX-induced testicular toxicity. For 5 days, 2 mg/kg/bw i.p. of PTX was administered to induce testicular toxicity. Rats were administered oral dosages of 100 and 200 mg/kg/bw HES for 10 days after PTX injection. The mechanisms of inflammation, apoptosis, endoplasmic reticulum (ER) stress, and oxidants were investigated using biochemical, genetic, and histological techniques. As a result of PTX administration, decreased antioxidant enzyme (superoxide dismutase, catalase, and glutathione peroxidase) activities and increased malondialdehyde level were regulated, and the severity of oxidative stress was reduced. NF-κB, IL-1β and TNF-α levels, which are among the increased inflammation parameters caused by PTX, decreased with HES administration. Although AKT2 gene expression decreased in PTX administered rats, it was determined that HES administration up-regulated AKT2 mRNA expression. Anti-apoptotic Bcl-2 decreased with PTX administration, and apoptotic Bax and Caspase-3 increased while HES administration reverted these effects towards control level. As a result of toxicity, the increase in ATF6, PERK, IRE1α, GRP78 levels caused prolonged ER stress, and this activity was diminished with HES and tended to regress. While all data were evaluated, Paclitaxel caused damage by increasing inflammation, apoptosis, ER stress and oxidant levels in testicular tissue, and Hesperidin showed a protective effect by correcting the deterioration in these levels
Aksaray Üniversitesi Lisans Öğrencilerine Göre Siyaset Bilimi ve Kamu Yönetimi Bölümü Eğitimine İlişkin Sorunlar ve Öneriler
Get PDFThe study aimed to determine the problems experienced in political science and public administration education and suggestions for its solution in line with the views of undergraduate students of the faculty of economics and administrative sciences' department of political science and public administration in Aksaray University. The research was conducted descriptively according to qualitative research method, case science and single case pattern. From the non-probability sampling types, the purposeful sampling method was used. Thirteen students determined from the fourth-year students of the department of political science and public administration of the faculty of economics and administrative sciences formed the participant group. Observation and interview and document review were used as data collection tools. Data were collected with semi-structured interview questions. The data obtained in the research were coded in the Maxqda 2022 program, categories based on codes and themes based on categories were reached. According to the participants, there are problems arising from their own learning in the department; from the education plan and program; from the course content and presentation; from the course supervisor and exams, and from employment after graduation, and there are some suggestions for solving these.Bu çalışma, Aksaray Üniversitesi iktisadi ve idari bilimler fakültesi siyaset bilimi ve kamu yönetimi bölümü lisans düzeyindeki öğrencilerin görüşleri doğrultusunda siyaset bilimi ve kamu yönetimi öğreniminde yaşanan sorunları ve çözümü için önerileri belirlemeyi amaçlamıştır. Araştırma, nitel araştırma yöntemi, olgu bilim, tekli durum desenine göre betimsel olarak yürütülmüştür. Olasılıklı olmayan örnekleme türlerinden, amaçlı örneklem yöntemi kullanılmıştır. Katılımcı grubunu iktisadi ve idari bilimler fakültesi siyaset bilimi ve kamu yönetimi bölümü dördüncü sınıf öğrencilerinden belirlenen on üç öğrenci oluşturmuştur. Veri toplama aracı olarak gözlem ve görüşmeyle doküman incelemesinden yararlanılmıştır. Yarı yapılandırılmış görüşme sorularıyla veriler toplanmıştır. Araştırmada elde edilen veriler Maxqda 2022 programında kodlanmış, kodlara dayalı kategorilere ve kategorilere dayalı temalara ulaşılmıştır. Katılımcılara göre bölümdeki öğrenimde kendilerinden; eğitim-öğretim plan ve programından; ders içeriği ve sunumundan; ders sorumlusu ve sınavlarından ve mezuniyet sonrası istihdamdan kaynaklanan sorunlar vardır ve bunların çözümü için bazı öneriler bulunmaktadır
Critical thinking, autonomous learning, and academic grit among preservice EFL teachers
No full textThe current study aims to explore the relationships between critical thinking, autonomous learning, and academic grit. With this purpose, a descriptive correlational design was followed in the research. “Critical Thinking Disposition Scale”, “Autonomous Learning Scale”, and “Academic Grit Scale” were used to collect data in the study. The study consisted of 475 preservice English as a Foreign Language (EFL) teachers in several state universities in Türkiye. Pearson Product Moment Correlation Coefficient was used to explore the correlations among the variables, and Regression Analysis was used to see the indirect effect of critical thinking on academic grit through autonomous learning. The study displayed significant differences between the participants’ critical thinking, autonomous learning, and academic grit scores and sub-scores, except for the autonomous learning-study habits sub-score, in terms of their self-perceived foreign language proficiency (p <.05), and significant differences between the participants’ all scores in terms of their academic success (p <.05). Critical thinking acted a positive predictor of autonomous learning (β =.66, p < 0.001) and academic grit (β =.19, p < 0.001), while autonomous learning was a positive predictor of academic grit (β =.57 p < 0.001). Furthermore, the study discovered the indirect effect of critical thinking on academic grit through autonomous learning (β =.37, p < 0.001). Based on the results, implementations that enhance “critical thinking”, “autonomous learning”, and “academic grit” can be suggested in EFL teacher training, which can contribute to the promotion of these skills of preservice teachers and foster the quality of prospective teachers along with the efficacy of teacher training programs would be affected positively