Bartın Üniversitesi Araştırma ve Akademik Performans Sistemi
DSpace@Bartın, Bartın Üniversitesi’nin bilimsel araştırma ve akademik performansını izleme, analiz etme ve raporlama süreçlerini tek çatı altında buluşturan bütünleşik bilgi sistemidir.
İndekslere Göre Dağılım
Yıllara Göre Dağılım
Türlere Göre Dağılım
Güncel Gönderiler
Öğe Türü: Yayın , Personality and leisure activity involvement as predictors of behavioral loyalty in recreationist campers: The moderating role of place dependence(Springernature, 2026) Aydın, İsmail; Solmaz, Serdar; Yazıcı, Atakan; Aydın, İsmail; Spor Bilimleri Fakültesi, Rekreasyon BölümüWith the growing popularity of nature-based recreational activities such as camping, understanding the underlying drivers of campers' loyalty toward these environments has become increasingly critical. Grounded in the five-factor personality theory, the conceptual framework of leisure involvement, and the psychological continuum model, this study investigated how personality influences behavioral loyalty through leisure activity involvement and whether this relationship is moderated by place dependence. Based on data collected from 451 individuals camping in national parks in Turkey, four hypotheses were tested using structural equation modeling. The results indicated that personality has a significant and positive effect on both leisure activity involvement and behavioral loyalty. Furthermore, leisure activity involvement mediated the effect of personality on behavioral loyalty, and this mediation was moderated by place dependence. These results provided a multidimensional theoretical framework that integrates individual differences, activity-specific involvement, and emotional attachment to place to explain campers' repeat visitation behavior. The study offers important theoretical and practical contributions to the recreation literature.Öğe Türü: Yayın , Crystal structure and cholinesterase inhibition investigations of copper complexes of pyrazine-modulated tripyridyldiamine: A computational and experimental method(Springer, 2026) Ismayilov, Rayyat Huseyn; Ismayilova, Sabina Zahid; Osmanli, Mahammad Humbat; Tagiyev, Dilgam Babir; Yalçın, Bahattin; Şenol, Halil; Fatullayeva, Perizad Amrulla; Medjidov, Ajdar Akber; Kanmazalp, Sibel Demir; Mamedov, Asif Nasib; Taslimi, Parham; Sadeghian, Nastaran; Şahin, Onur; Peng, Shie-Ming; Taslimi, Parham; Sadeghian, Nastaran; Fen Fakültesi, Biyoteknoloji BölümüThe pyrazine-modulated oligo-alpha-pyridylamino ligand N,N '-di(pyrazin-2-yl)pyridine-2,6-diamine (H(2)dpzpda) was used to synthesize and structurally characterize two novel mononuclear copper(II) complexes. In both complexes, H(2)dpzpda acts as a tridentate ligand and coordinates to the metal center in an all-anti conformation. Complex 1 exhibits a distorted trigonal-bipyramidal geometry around the Cu(II) center, whereas complex 2 adopts a distorted square-pyramidal geometry. The nitrogen atoms of the amino groups remain uncoordinated in both complexes. The free ligand and its copper(II) complexes were evaluated as acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitors. The free H(2)dpzpda ligand exhibited IC50 values of 9.83 and 50.72 & micro;M against AChE and BChE, respectively. Complexes 1 and 2 displayed IC50 values of 5.50 and 1.42 & micro;M against AChE and 41.30 and 25.68 & micro;M against BChE, respectively. Comparison with the free ligand demonstrated that Cu(II) coordination enhanced cholinesterase inhibitory activity, particularly for complex 2 against AChE. Molecular docking and molecular dynamics simulations were also performed for both complexes against the two enzymes. In addition to single-crystal X-ray diffraction analyses, Hirshfeld surface analysis and two-dimensional fingerprint plots were employed to investigate the intermolecular interactions within the crystal structures. Furthermore, DFT calculations revealed HOMO-LUMO energy gaps of 3.70 and 0.79 eV for complexes 1 and 2, respectively. The markedly smaller energy gap of complex 2 indicated greater frontier-orbital delocalization and a higher tendency toward electronic transitions, while the molecular electrostatic potential maps identified the chloride, nitrate oxygen, and pyrazine nitrogen atoms as the principal electron-rich regions. These theoretical findings supported the structural and electronic features observed experimentally.Öğe Türü: Yayın , The relationship between perceived genital self-image and genital hygiene practices in reproductive age women and influencing factors(Springer, 2026) Ekrem, Ebru Cirban; Küçükkaya, Burcu; Öztürk, Simge; Ekrem, Ebru Cirban; Sağlık Bilimleri Fakültesi, Hemşirelik BölümüAim The aim of the study was to determine the relationship and influencing factors between the perceived genital self-image of women of reproductive age and genital hygiene practices. Methods The universe of this cross sectional study consisted of women aged 18-49 in Turkey. The sample consisting of 456 women, was determined using a known population sampling method. Data were collected through an online survey employing a snowball sampling technique. The research, characterized as a cross sectional exploratory study, utilized instruments such as a "Demographic Information Form", "The Female Genital Self-Image Scale (FGSIS)", and the "Genital Hygiene Behaviors Scale (GHBS)". Data were analyzed using SPSS 25.0. Descriptive statistics, t test, ANOVA, Pearson correlation analysis, and simple and multiple regression analyses were applied. A post hoc power analysis was conducted using G*Power 3.1, and the achieved statistical power exceeded 0.99. Results were evaluated at a 95% confidence interval and a p <0.05 statistical significance level.Results It was associated with some defining characteristics of women. The women's total FGSIS score was 13.11 +/- 3.96 (min: 7, max: 28), and the mean total score of GHBS was 41.07 +/- 8.47 (min: 23, max: 115). There was a significant relationship between FGSIS and GHBS (p < 0.001). The average GHBS score significantly predicted women's genital self-image (p < 0.001). The total GHBS score significantly predicted genital self-image and explained 12% of the variance in FGSIS. GHBS subdimensions explained 14% of the variance in genital self-image. In the multiple regression analysis, abnormal finding awareness and general hygiene habits were significant predictors of genital self-image, whereas menstrual hygiene was not a significant predictor. Abnormal finding awareness emerged as the strongest predictor of genital self-image. Conclusion Women's genital self-image and genital hygiene behaviors were positively associated. Awareness of genital health and general hygiene habits appear to play a more important role in genital self-image than menstrual hygiene practices. Interventions aimed at improving genital health awareness and healthy hygiene behaviors may contribute to a more positive genital self-image among women.Öğe Türü: Yayın , Effect of boriding process temperature on microstructure, mechanical properties, and wear behavior of Al0.25CoCr1.5FeMo0.5Ni HEA(Korean Institute of Metals and Materials, 2026) Çalış, İbrahim; Günen, Ali; Sünbül, Sefa Emre; İçin, Kürşat; Döleker, Kadir Mert; Gök, Mustafa Sabri; Erdoğan, Azmi; Gök, Mustafa Sabri; Erdoğan, Azmi; Mühendislik Mimarlık ve Tasarım Fakültesi, Makine Mühendisliği Bölümü; Mühendislik Mimarlık ve Tasarım Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümü; RektörThis study comprehensively investigates the effects of package boriding temperature on the microstructure, mechanical, and tribological properties of a high-entropy Al0.25CoCr1.5FeMo0.5Ni alloy. The treatments were conducted at 875 degrees C, 950 degrees C, and 1025 degrees C for five hours in a powder environment commonly used in industrial surface modifications. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) were used for microstructural characterization. Cross-sectional analyses revealed the thickness and morphology of the boride layers. While the alloy initially consisted of FCC + sigma phases, the boriding process promoted the formation of complex boride layers on the surface. The layer thickness increased with temperature, reaching approximately 14 mu m at 875 degrees C, 19 mu m at 950 degrees C, and 70 mu m at 1025 degrees C. Mechanical behavior was evaluated using microhardness and nanoindentation tests. Surface hardness increased from 10.8 GPa to 25.1 GPa with increasing temperature, and significant increases were observed in the elastic modulus, H/E, and H3/E2 ratios. These results indicate that the boronized surface is more resistant to plastic deformation and responds more elastically under load. Wear tests conducted under dry sliding conditions confirmed that boronizing reduces material loss by over 90%. The highest wear resistance was achieved in samples boronized at 1025 degrees C. Overall, the boride layer formed a strong barrier on the surface, effectively suppressing wear and surface damage. As a result, the package boronizing process significantly increased the surface strength of the alloy and demonstrated its potential for use in components operating at high temperatures.Öğe Türü: Yayın , Online dating as a middleman: Autistic young adults' pursuit of romantic connection(Springer/Plenum Publishers, 2026) Safran, Selin; Hurwitz, Sarah; Safran, Selin; Eğitim Fakültesi, Özel Eğitim BölümüPurpose: Autistic individuals often desire romantic relationships, but face challenges related to social communication. Online dating apps may provide opportunities for connection by reducing immediate social demands; however, less is known about how autistic young adults experience and navigate online dating. This study examined autistic young adults’ experiences of online dating pursuing romantic relationships. Methods: In this qualitative study, semi-structured interviews were conducted with 20 autistic young adults aged 18–29 in the United States, focusing on their experiences using online dating apps to pursue romantic relationships. Data were analyzed using thematic analysis. Results: Three themes were identified: (1) entering online dating: motivations, expectations, and access; (2) managing interaction: communication, strategy, and masking; (3) emotional consequences: connection, rejection, and vulnerability. While online dating created opportunities to initiate romantic connections, it required actively managing communication, uncertainty, and self-presentation in ways that were not intuitive for autistic participants. Participants described online dating as involving repeated efforts to interpret communication, understand others’ intentions, and decide how to respond. Experiences of connection were often accompanied by rejection, unclear interactions, and limited success. Strategies such as masking supported interaction but were difficult to sustain. Conclusion: Online dating functioned as a pathway to connection while also introducing challenges related to communication, uncertainty, and emotional effort. Rather than simplifying communication difficulties, online dating shifted these challenges into interpreting unclear messages, managing self-presentation, coping with rejection, and navigating safety concerns. These findings highlight the need for greater attention to communication support, emotional well-being, and safety for autistic young adults.
