Students’ anxiety over taking tests, which play a vital role in their educational lives, is very prevalent in our country. The purpose of this study is to reveal the pattern of relationships between ...test anxiety, psychological flexibility, and rumination. The survey included 247 (35%) men and 458 (65%) women from Muğla Sıtkı Koçman University’s several faculties. 705 individuals provided information. Test anxiety is classified as low, medium, or high. While psychological inflexibility and rumination were more prevalent in the high-test anxiety group, it can be demonstrated that being in the high-test anxiety group predicts psychological inflexibility and rumination. The relationship pattern between test anxiety, psychological flexibility, and rumination was investigated using structural equation modelling. Rumination was shown to be a significant variable in the relationship between test anxiety and psychological flexibility, the model analysed was found to be significant and all fit indexes were acceptable. Test anxiety has an important role in the individual’s psychological inflexibility and rumination.
Estimation of sea level trends is essential for understanding sea level rise dynamics. In this study, the performance of traditional Ordinary Least Squares (OLS) linear trend forecasting is compared ...with modern machine learning techniques, specifically Random Forests (RF) and Least Squares Support Vector Machines (LS-SVM).These methods are applied to 50 years of long-term tide gauge (TG) data from six tide gauge stations off the coast of Shikoku Island, Japan, and CMEMS Grid Altimetry data from 1993 to the present. The analysis uses OLS, RF, and LS-SVM to estimate trends from both data sets and compares the results. The objective is to determine the consistency and accuracy of RF and LS-SVM methods compared to the OLS method. The results indicate that machine learning algorithms (LS-SVM) effectively estimate sea level trends, offering potential improvements in precision for both long-term and medium-term analyses. Shikoku Island's coastal sea level trend is determined as 2.91±1.44 mm/yr using TG data and 3.00±1.52 mm/yr using CMEMS Grid Altimeter data with the OLS approach. Using the LS-SVM approach, the trend is found as 2.96±1.58 mm/yr with TG data and 3.02±1.60 mm/yr with CMEMS Grid Altimetry data. The novelty of this study lies in its thorough comparison of traditional and machine learning approaches for sea level trend estimation, providing valuable insights for future predictions of the sea level rise.
Advancements in Applied Geoinformatics Jacek Paziewski; Dogan Ugur Sanli
Advances in Geodesy and Geoinformation,
06/2023, Letnik:
72, Številka:
No 1
Journal Article
This study focuses on the morphotectonic evolutionary history of two significant geomorphic features, Suğla structural-border polje and Maviboğaz canyon, located within the Suğla-Seydişehir, ...Akören-Kavakköy, and Bozkır grabens in the central Taurides. Data were obtained by detailed field mapping of faults, rocks, and geomorphic features. Three phases of tectonic deformation were determined. The three erosional surfaces developed, especially in the form of tectonically controlled steps, during Oligocene-early Miocene, middle Miocene, and late Miocene-early Pliocene, sequentially. Southwest- to northeast-trending karstified hanging paleovalleys are present on the high erosional surfaces, which have been attributed to the end of early Miocene and late Miocene. Faulting-induced tectonic movements enabled the formation of Suğla-Seydişehir paleograben in early Miocene. We suggest that the Maviboğaz canyon was formed by captures at the beginning of late Miocene and late Pliocene and by incision in Late Pliocene-Quaternary, depending on the headward erosion of Çarşamba River. Starting from the beginning of Quaternary, a tensional neotectonic regime became prominent and then a series of modern graben-horst structures formed along the reactivated older grabens. One of these is the Suğla-Seydişehir reactivated graben. Suğla structural-border polje developed within the graben. Total visible tectonic subsidence of the polje is 134 m. Underground capture of surface water occurred on the southern slopes of the graben. Waters of Suğla polje are transported intermittently into Konya basin on the surface and into the Mediterranean basin via natural swallow holes. Beach deposits, water marks, cliffs, and notches marking the late Pleistocene lake level (10 m) and two perched corrosion surfaces (~50 and 22 m) were detected around the polje.
•Three erosional surfaces were determined dating from Oligocene to Late Pliocene.•Maviboğaz was formed as a result of two captures and incision after Middle Miocene.•Quaternary incision is ~134 m in the Sarayköy section of Maviboğaz canyon.•Suğla structural-border polje was formed in the Quaternary Suğla-Seydişehir graben.•Water of the polje drains into the Mediterranean basin via underground conduits.
This study aims to estimate Vertical Land Motion (VLM) using multi-sensor and in-situ data at the tide gauge stations (TG) located on the western and southern coasts of Turkey. The analysis of tide ...gauge data, used to determine sea level changes for centuries, was supported by modern global geodetic observations, and the effect of VLM on the sea level trend was determined. In this context, VLM was calculated from the relative sea level trends of eight TG's between 1998 and 2018 and the absolute sea level trends obtained from the CTOH Along-Track Sea Level Anomalies regional products (X-TRACK) and Copernicus Marine Environment Monitoring Service (CMEMS) improved altimetry data covering the same temporal period. GNSS (Global Navigation Satellite System) measurements give a solution of the point-wise information about VLM at TG's, whereas InSAR (Interferometric Synthetic Aperture Radar) solutions give spatial information about VLM that were calculated from Sentinel-1 data, which was put into service after 2014. The analyses carried out on Turkey's south and west coasts revealed an uplift trend at all TG's, whereas an insignificant subsidence trend was determined at the MNTS tide gauge station. When focusing on the MNTS station, in the period of 1998–2018 VLM from XTRACK minus TG and CMEMS minus TG were estimated as −0.7 ± 0.9 mm/yr and −0.5 ± 0.8 mm/yr, respectively and also during the period of 2014–2018 VLM from GNSS and InSAR were estimated as −0.6 ± 0.2 mm/yr and −0.3 ± 0.1 mm/yr, respectively.
Following the GPS, new GNSS techniques are emerging today. Various surveying and processing methods are available for the analysis of GNSS data. Equipment and software are also varied. The orbit ...quality, controlled by the system designer, and the IGS are continuously improved. The user is mainly interested in the quality of position and of the deformation rates produced by the GNSS. Hence, research needs to guide the user in terms of selecting the best combination of the available methods and instrumentation to produce the desired accuracy. This book reviews the current available accuracy obtainable using the GNSS methods. In fact, the main aim of this book is to make an impact on young researchers so that they keep updating the accuracy of GNSS for future generations.
The main aim of the study is to determine the paleoenvironmental and climatic changes in the Engir Lake (Central Anatolia Region of Türkiye) and its surroundings during the last 1090 years. A total ...of 63 sub-samples with a resolution of 4 cm were obtained from the 263 cm-long sediment core, which was taken from a site away from the current and where the deterioration was the least. Based on fossil diatoms, important data have been obtained about the Medieval Warm Period (MWP), the Little Ice Age (LIA), and the Industrial Period (IP). The MWP corresponds to between ca. AD 860–1240 cal yr in the Engir Lake and its surroundings. In this study, the MWP is generally described as a warm and wet period characterized by a relatively high water level recorded between ca. AD 1110–1240 cal yr. Although the first evidence of the onset of dry conditions occurs between ca. AD 1260–1320 cal yr, the first characteristic impact of the LIA on Engir Lake is generally observed between ca. AD 1350–1380 cal yr. This first dry period in Engir Lake corresponds to the global Wolf Minimum, while ca. AD 1490–1530 cal yr corresponds to the Spörer Minimum and ca. AD 1620–1690 cal yr corresponds to the Maunder Minimum. During these periods, low water levels were recorded in the lake with aerophile taxa dominating. Between these dry phases, the core also recorded relatively wet phases. These wet phases occurred at ca. AD 1390–1480, AD 1530–1620, and AD 1690–1760 cal yr, respectively. After ca. AD 1890 cal yr, the pollution of the lake increased due to the industrial activities in the vicinity of Engir Lake, and aquatic plants developed in the vicinity of the lake with increasing nutrient input. This study is an important record for understanding the past, as there has not yet been a relatively detailed study on LIA and MWP through fossil diatoms in Türkiye.
Background
This study aimed to adapt the Tolerance of Uncontrollability Questionnaire (TOUQ) to Turkish and examine its psychometric properties. The objective was to determine whether the Turkish ...version of TOUQ is a valid and reliable measure of intolerance of uncertainty. TOUQ is a 19-item scale used to measure intolerance of uncertainty, which is the tendency to experience negative emotions and avoid uncertain situations. Intolerance of uncertainty is associated with psychiatric disorders such as anxiety, depression, and obsessive-compulsive disorder.
Methods
Data collection for this study took place between April 2022 and January 2023. The sample size was determined based on the recommendation that 5–20 participants per item are required. As a result, a sample of 346 participants was obtained. The non-clinical group consisted of 244 participants (143 women, 58.6%) recruited from a university in southwestern Turkey during the 2022–2023 academic year. The non-clinical group consisted of 102 participants (62 women, 60.8%) recruited from volunteers who applied to a psychiatric clinic in western Turkey. The age range of the participants was 18 to 73 years (mean = 25.2 ± 10.1). Data analysis was performed using confirmatory factor analysis (CFA), measurement invariance, and correlation analysis. CFA examined the construct validity of the scale. The convergent and divergent validity of TOUQ were investigated by correlation analysis with the Freiburg Mindfulness Inventory (FMI), the Intolerance of Uncertainty Scale-Short Form (IUSS), and the Distress Tolerance Scale (DTS). McDonald’s ω internal consistency coefficient was calculated for the scale’s reliability.
Results
The CFA results of TOUQ confirmed its one-factor structure. The fit indexes of the CFA results showed promising results (χ2 = 436, df = 148, χ2/df = 2.95; RMSEA = 0.075; CFI = 0.918; TLI = 0.905; SRMR = 0.0511). In addition, all factor loadings were significant. TOUQ showed a strong positive correlation with FMI (r = 0.362, p < .001) and a strong negative correlation with IUSS total score (r = -0.322, p < .001), IUSS Prospective Anxiety factor score (r = -0.297, p < .001), IUSS Inhibitory Anxiety factor score (r = -0.288, p < .001), DTS total score (r = -0.131, p < .05), DTS Tolerance score (r = -0.195, p < .001), DTS Regulation score (r = -0.108, p < .05) and DTS Self-efficacy score (r = -0.118, p < .05). The McDonald’s ω internal consistency coefficient of the whole scale was found to be 0.931.
Conclusions
The findings indicate that the Turkish version of TOUQ is a valid and reliable measure of intolerance of uncertainty. The scale’s one-factor structure, fit indexes, correlation analysis, and internal consistency coefficient yielded results consistent with the original study. However, further research is needed on the applicability and effectiveness of the scale in different cultures and groups with various psychiatric disorders.
Our aim is to investigate the effects of the submucoperichondrial application of Platelet Rich Plasma (PRP) on nasal mucosal healing after septoplasty surgery.
This prospective randomized ...observational study was conducted between July 2019 and February 2021, with 40 patients aged 18–60 years who underwent closed the only septoplasty operation for similar septal deviations. Patient divided into two group; 21 patients were placed in PRP group to which PRP was applied on all mucosal surface and submucoperichondrial area of septum and 19 patients were placed in control group to which saline solution was applied on same regions. Nasal obstruction score, mucociliary clearance time, presence of nasal crusting, and bleeding time were evaluated on 5th, 10th, 15th day after surgery and compared between groups.
Intranasal crusting on day 10 was found to be lower in the PRP group (n:13 68.4 %) than control group (n:7 33.3 %) with a statistically significant difference (p = 0.028). The nasal obstruction score on day 10 and 15 were found to be lower in the PRP group (3,33 ± 2,75, 2,07 ± 2,20) (than the control group (5,44 ± 2,26, 3,37 ± 1,92) with a statistically significant difference (p = 0,003,p = 0,009). The mucociliary clearance rate was found to be higher and the bleeding time was found to be lower in the PRP group, but a statistically significant difference was not observed.
Application of submucoperichondrial PRP could have beneficial effects on nasal mucosal repair, nasal crusting, and congestion after septoplasty surgery.
This study aims to detect recent landslide displacements caused by geological structure of the region where there is intense urbanization using advanced Interferometric Synthetic Aperture Radar ...(InSAR) techniques and with Global Navigation Satellite Systems (GNSS) observations in the Beylikdüzü and Esenyurt districts in Istanbul megacity, Turkey. In this study, multiple satellites with different frequencies (C-band, L-band) and periodic GNSS observations were employed. For the entire peninsula, we processed 149 images from the ascending orbit, 144 images from the descending orbit of Sentinel-1 (C-Band) and 24 ALOS-2 (L-band) images from the ascending orbit. The evaluations were carried out in the period between 2015 and 2020 for Sentinel-1 imagery and 2015–2020 for ALOS-2 imagery respectively. Since the study area is covered by dense settlements, the Persistent Scatterer InSAR (PSI) technique was utilized to determine the landslide behaviors. According to the results, for both orbits of the Sentinel-1, the horizontal displacement and the vertical displacement were observed in the range of − 10 to 6 mm. Compared to the magnitude of displacement signal measured by Sentinel-1, ALOS-2 data has higher values due to the high surface penetration of the L-band. The results showed that most of the old landslide regions are reactivated. Horizontal movement derived through Sentinel-1 showed that the highest movement overlaps with old landslides. L-band ALOS-2 provided better spatial coverage of landslide movement than C-band Sentinel-1 data, especially at the rural part along the coast of the lake.
