Siirt Üniversitesi Kurumsal Akademik Arşivi
DSpace@Siirt, Siirt Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Discharge performance of side gates with different shapes
(IWA Publishing, 2025-02-10) Veysi Kartal; M. Emin Emiroglu; M. Fatih Yuksel
Flow measurement and water level control in open channels are vital to water management. Lateral intake structures are commonly used for different purposes in civil and environmental engineering applications. Flow characteristics of rectangular, triangular, and semi-circular shapes were experimentally investigated using 357 runs under subcritical flow conditions. Correlation analysis was conducted to determine the effect of various parameters on the discharge coefficient. Upstream Froude number (F1), the ratio of the gate opening to the upstream flow depth, and the gate length to flow depth ratio are influential for all side gates. However, the ratio of the gate opening to the gate length is also influential for triangular side gates. Discharge coefficient of the semi-circular side gate is relatively higher than that of the other tested gates within the range of 0.05
Uncertainty and Well-Being in Turkish Adults: Exploring the Role of Religiosity and Psychological Symptoms
(Springer Science and Business Media LLC, 2025-02-27) Nuri Türk; Gökmen Arslan; Alican Kaya; Oğuzhan Yildirim
Religiosity offers individuals a sense of purpose and connection, which can lead to greater life satisfaction and improved psychological well-being and happiness. On the other hand, psychological challenges such as depression, anxiety, stress, and difficulty dealing with uncertainty can negatively affect life satisfaction. This study examined these dynamics using a hypothetical model, incorporating mediation and moderation analyses to explore the connections between intolerance of uncertainty, life satisfaction, religiosity, and psychological symptoms in a group of 565 participants (286 of whom were female). The findings revealed notable positive and negative relationships among these variables. Specifically, the study found that (i) religiosity and psychological symptoms both play a mediating role in the link between intolerance of uncertainty and life satisfaction, and (ii) religiosity serves as a moderator in this relationship. The moderation analysis showed that when religiosity levels are low, the negative effect of intolerance of uncertainty on life satisfaction is significantly stronger. In contrast, high levels of religiosity significantly weaken this negative relationship, indicating that religiosity acts as a buffer against the adverse impact of uncertainty on life satisfaction. These results underscore the potential value of religiosity in helping individuals cope with the harmful effects of uncertainty on their sense of life satisfaction. Additionally, lower levels of psychological symptoms and reduced intolerance of uncertainty were associated with higher life satisfaction, suggesting that religiosity may play a protective role in promoting overall well-being.
Wild Emmer (Triticum turgidum ssp. dicoccoides) Diversity in Southern Turkey: Evaluation of SSR and Morphological Variations
(MDPI AG, 2025-01-29) Esra Çakır; Ahmad Alsaleh; Harun Bektas; Hakan Özkan
Wild emmer wheat (Triticum turgidum ssp. dicoccoides) is the ancestral species of cultivated tetraploid wheat with BBAA genomes. Because of its full interfertility with domesticated emmer wheat, this wild species can serve as one of the most important genetic resources to improve durum and bread wheat. To clarify the magnitude of genetic diversity between and within populations of Turkish wild emmer wheat, 169 genotypes of ssp. dicoccoides selected from the 38 populations collected from the three sub-regions (East-1, West-1, and West-2) of the Southeast Anatolia Region of Turkey were molecularly and morphologically characterized. The populations showed significant variation in plant height, heading date, flag leaf area, spike length and number, spikelet, peduncle, lemma, palea, glume and anther lengths, glume hull thickness, anther width, and days to maturity. According to the results of nuclear-SSR analysis, the populations collected from the sub-regions East-1 and West-2 were the most genetically distant (0.539), while the populations collected from the sub-regions West-1 and West-2 were the most genetically similar (0.788) populations. According to the results of AMOVA, there was 84% similarity within the populations studied, while the variation between the populations of the three sub-regions was 16%. In the dendrogram obtained by using nuclear-SSR data, the populations formed two main groups. The populations from the sub-region East-1 were in the first group, and the populations from the sub-regions West-1 and West-2 were in the second group. From the dendrogram, it appears that the populations from the sub-region East-1 were genetically distant from the populations from the sub-regions West-1 and West-2. The results highlight the potential diversity in Southeast Anatolia for wild emmer discovery and utilization.
3D Geometric Morphometric Analysis of Calcaneal Morphology in Domestic Caprinae: Sheep (Ovis aries) and Goat (Capra hircus)
(MDPI AG, 2025-02-14) Barış Can Güzel; Tomasz Szara; Burak Ünal; Sokol Duro; Fatma İşbilir; Funda Yiğit; Mihaela-Claudia Spataru; Karolina Goździewska-Harłajczuk; Ozan Gündemir
The calcaneus plays a critical role in balance, locomotion, and muscle attachment, making it a key structure for biomechanical adaptations. This study examined interspecies differences between sheep and goats, as well as intraspecies variations among different sheep breeds, in calcaneus morphology. A total of 128 right calcanei were analyzed using 3D geometric morphometric methods to allow detailed assessments of calcaneus shape and size. Among sheep, the Hamdani sheep displayed the largest calcaneus among the breeds, distinguishing them significantly from the others. In contrast, goats had a bilaterally narrower calcaneal body, while sheep featured a more pronounced distal portion that articulates with the talus and a deeper articular surface. Additionally, the sustentaculum tali were more developed in sheep. The bilaterally compressed calcaneal body in goats likely reflects their agility and ability to navigate steep, rocky terrains. In contrast, sheep's broader and more robust calcaneus may support their grazing lifestyle on flatter terrains, emphasizing their stability and weight-bearing capacity. These findings highlight the functional significance of calcaneal morphology in the locomotor strategies and physical capabilities of goats and sheep, providing valuable insights for comparative anatomy and veterinary science.
Abundant soliton solutions in saturated ferromagnetic materials modeled via the fractional Kraenkel–Manna–Merle system
(Springer Science and Business Media LLC, 2025-02-25) Loubna Ouahid; Maryam Alshahrani; A. Mohamed Abdel-Baset; M. A. Abdou; Ali Akgül; Murad Khan Hassani
The Modified Generalized Riccati Equation Mapping Technique is employed to discover novel solutions for the Fractional Kraenkel-Manna-Merle system. In this system, a nonlinear of ultra_short wave pulse propagates across saturated ferromagnetic-materials by very low conductance. The beta-derivative is used to analyze the fractional performance of the proposed system. Combo-multi soliton shape, anti-bell-shaped solitons, kink bright-dark shape are the results of the applications. The results obtained are original and unfamiliar to the reader, as they had not been published previously. For a few chosen solutions, two dimensional, and three dimensional are shown to offer important insights into the behavior and properties of the solutions. These detailed exact solutions and wave phenomena contribute to a deeper understanding of this equation. This work opens up new possibilities for exploring wave phenomena in more complexly structured nonlinear.
