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Ocular effects of synthetic cannabinoids: a case-control study
(Springer Nature, 2025) Kunduracı, Merve Sena; Kırık, Furkan; Onur, İsmail Umut; Şahmelikoğlu Onur, Özge; Karşıdağ, Çağatay; Yiğit, Fadime Ulviye; Erkıran, Murat
Objective: To evaluate the ocular effects of "Bonzai", a synthetic cannabinoid (SC), in seropositive and seronegative users. Methods: Sixty eyes of 60 consecutive male patients with a history of "Bonzai" use and 30 eyes of 30 age-matched male healthy controls were enrolled in this case-control study. Patients with past "Bonzai" use were grouped as seropositive (n:30) and seronegative (n:30) according to urine toxicology tests. All groups were compared for blood pressures, intraocular pressure, foveal and parafoveal retinal thicknesses, subfoveal and parafoveal choroidal thicknesses, measurements of the peripapillary retinal nerve fibre layer (RNFL), and macular ganglion cell complex (GCC), subfoveal total choroidal, luminal and stromal areas, and choroidal vascularity index (CVI). Results: No differences were noted in blood pressures between the groups (p > 0.05). The mean intraocular pressure was significantly lower in the seropositive group than in the other groups (p < 0.001). Foveal and retinal thicknesses, RNFL, and GCC measurements did not differ between the groups (p > 0.05). Subfoveal and parafoveal choroidal thicknesses and areas were lower in the seropositive group than in the other groups (p < 0.001, for all). CVI increased in both groups with "Bonzai" use compared to the control group (p < 0.001, for all). Conclusions: This study indicates that intraocular pressure may decrease, and choroidal changes may be observed in SC users. Further clinical studies with a larger sample size, especially using purified SC for therapeutic purposes, are needed to confirm the present findings, and further histopathologic studies are required to clarify the changes in the choroid despite SC seronegativity.
Türkçe hasta hakları ve memnuniyeti ölçeği: geçerlik ve güvenirlik çalışması
(DOC Design and Informatics Co. Ltd., 2025) Uzun, Belma
Amaç: Bu çalışmada, sağlık kurumlarından hizmet alan hastalarla çalışılarak kişilerin algılarına dayalı geçerli ve gü - venilir bir hasta hakları ve memnuniyeti ölçeği geliştirilmesi amaçlandı. Yöntemler: Ölçek geliştirme kapsamında iki ayrı veri seti oluşturuldu. İlk veri seti, İstanbul’un Kartal ilçesinde özel bir sağlık kurumuna başvuran 320 hastadan; ikinci veri seti ise yine Kartal ilçesinde bulunan farklı bir sağlık kuru - muna başvuran 327 hastadan elde edildi. Ölçeğin geçerlilik çalışmaları kapsamında hastalarla görüşmeler yapıldı ve ölçme aracını oluşturan maddeler hem uzmanların hem de hastaların geri bildirimleri doğrultusunda gözden geçirildi. Yapı geçerliliğini değerlendirme amacıyla açımlayıcı faktör analizi (AFA) ile birlikte doğrulayıcı faktör analizi (DFA) uygulandı. Güvenirlik incelemeleri kapsamında, iç tutarlılığı belirlemek amacıyla Cronbach alfa güvenirlik katsayısı ve madde-toplam korelasyonu hesaplandı. Ayrıca, zaman içindeki tutarlılığı değerlendirmek için ise test-tekrar test korelasyonu uygulandı. Bulgular: Ölçeğin toplam 42 maddeden ve altı faktörden oluşan bir yapıya sahip olduğu belirlendi. Doğrulayıcı faktör analizinin (DFA) uyum indeksi değerleri sırasıyla χ²/sd=3.16, RFI=0.96, NFI=0.96, CFI=0.97, RMSEA=0.0086 ve RMR=0.039 olarak hesaplandı. Bu bulgular doğrultusunda ölçeğin model-veri uyumunun kabul edilebilir düzeyde olduğu değerlendirildi. Güvenirlik analizleri kapsamında, Cronbach alfa iç tutarlılık katsayıları “Hasta Mahremiyeti” boyutu için 0.93, “Sağlık Çalışanı İlgisi ve Nezaketi” boyutu için 0.94,“Hasta Memnuniyeti” boyutu için 0.94, “Servis Hizmetleri” boyutu için 0.90, “Hemşirelerin Tutumu” boyutu için 0.92 ve “Hekimlerin Tutumu” boyutu için 0.91 olarak hesaplandı. Sonuç: Geçerliliği ve güvenirliği yapılan bu ölçeğin, sağlık kurumlarından hizmet alan hastaların hasta hakları ve memnuniyetine ilişkin algılarını belirlemede kullanılabileceği sonucuna ulaşıldı.
Relationships among nutrition knowledge level, healthy eating obsessions, body image, and social media usage in females: a cross-sectional study
(BioMed Central Ltd, 2025) Şahin, Elif; Şanlıer, Nevin
Background: This study examined the relationships among female’s nutrition knowledge levels, diet practices, healthy eating obsessions, body perceptions, and social media usage. Subjects and methods: The study included 613 voluntarily participating females aged 18–60 years. Data including demographic information, anthropometric measurements, whether they follow a diet or not, and ORTO-R, Body Shape Questionnaire (BSQ-34), Bergen Social Media Addiction Scale (BSMAS), and General and Sport Nutrition Knowledge (GeSNK) Scale scores were collected. Results: The participants’ mean age was 28.47 ± 9.38 years. Mean scores were 17.5 ± 5.1 for the ORTO-R scale, 89.2 ± 40.2 for the BSQ-34, 38.6 ± 12.5 for the GeSNK, and 17.3 ± 6.1 for the BSMAS. Statistically significant differences were found among the participants’ total ORTO-R, BSQ-34, and GeSNK scores according to body mass index (BMI) and education level. Statistically significant relationships were also found among total ORTO-R, BSMAS, BSQ-34, and GeSNK scores. ORTO-R scores were positively correlated with BSMAS (r = 0.475, p < 0.05) and BSQ-34 (r = 0.685, p < 0.05) scores, while they were negatively correlated with GeSNK scores (r = -0.117, p < 0.05). There was a positive correlation between BMI and BSQ-34 scores (r = 0.380, p < 0.001) and between BMI and ORTO-R scores (r = 0.130, p < 0.001), while there was a negative correlation (r = -0.176, p < 0.001) between BMI and GeSNK scores. Conclusions: Social media is a fast, important, and effective tool for the sharing of information. Thus, social media may be effective in strengthening individuals’ nutrition knowledge, nutrition obsessions, body perceptions. Therefore, it would be beneficial to provide training for individuals to use social media consciously and providing nutritional literacy will be effective.
Factors affecting the joy of life in old age: a scale development study
(Wiley, 2025) Karagöz, Yalçın; Karaşin, Yusuf; Filiz, Mustafa; Ateş, Mehmet
This study aims to introduce a measurement tool into the literature that can reveal the factors affecting the joy of life in older adulthood. Participants included 266 individuals aged 55 and over living in Izmir, Turkey. The process of developing the scale includes the following stages: problem identification, item pool creation, expert opinion, form shaping, pilot application, and finalizing the scale. The exploratory factor analysis revealed that the scale consists of 6 different dimensions, and the variance explained by these dimensions was found to be 65.184%. The acceptable values for the scale's fit indicators are as follows: chi(2)/df0.90, IFI > 0.90, TLI > 0.90, CFI > 0.90, RMSEA < 0.08, and SRMR < 0.08. These values indicate an appropriate fit between the model and the data set. It was determined that the scale of factors affecting the joy of life in older adulthood is valid and reliable. The scale consists of six dimensions and 23 items.
Use of transparent cover and elastic fixation band in patients with peripheral venous catheter: a comparison of microbiological colonisation
(MA Healthcare Ltd, 2025) Orhan, Büşra Nur; Göktaş, Sonay
Objective:The study was carried out to compare the effect of transparent covers and elastic fixation bands used in peripheral venous catheter fixation on microbiological colonisation in patients in intensive care. Method:This experimental randomised controlled study was conducted with patients treated in the Anesthesia and Reanimation Unit (an intensive care unit, ICU) of a training and research hospital in Istanbul between January 2019 and May 2020. Participants were divided into two equal groups: intervention: (catheters fixed with a transparent cover) and control (catheters fixed with an elastic fixation band) by the block randomisation method (CONSORT). After 72 hours, the catheters were removed aseptically and cultures were collected from the catheter tips. The roll plate technique was used and colony growth of >= 15 colony forming units was considered significant. The data of the study were collected using the 'Patient Information Form' and 'Catheter Follow-up and Result Form'. Results:A total of 60 patients were included in the study (30 in each group). It was found that the effect of the microbiological colony-forming microorganism species, and the area of catheter insertion on microbiological colonisation, were not statistically significantly different between the two groups (p>0.05). Conclusion:The findings of this study showed that both fixation methods can be used with effective nursing care in the treatment of patients in ICUs.
Multifunctional SnO2-@ doped glass fiber-reinforced concrete: improved microstructure, mechanical, dielectric, and energy storage characteristics
(Elsevier Ltd, 2025) Ramazanoğlu, Doğu; Subaşı, Azime; Musatat, Ahmad Badreddin; Demir, Ahmet; Subaşı, Serkan; Maraşlı, Muhammed
This study explores SnO₂-based hybrid composite (SnO₂-@) doped glass fiber-reinforced concrete (GFRC) for enhanced dielectric, energy storage, and mechanical performance. Microstructural analysis confirmed SnO₂-@ promotes ettringite and calcium silicate hydrate (C-S-H) formation, improving matrix integrity. Aged samples exhibited a 650 % increase in surface roughness (Ra) and over 200 % higher Leeb hardness, demonstrating durability. Dielectric spectroscopy revealed frequency-dependent tunability: 1 % SnO₂-@ achieved a peak dielectric constant (ε' = 130 at 10 kHz), shifting to ε' = 140 at 100 kHz for 2–3 % doping. AC conductivity surged by 60 %, correlating with SnO₂-@-induced interfacial polarization and charge mobility. Energy storage capacity improved significantly, attributed to optimized dipole alignment and reduced leakage currents. Color stability remained robust (ΔE* ≤ 2.8 post-aging), ensuring aesthetic viability. These results position SnO₂-@-doped GFRC as a multifunctional material for smart infrastructure, integrating structural resilience, adaptive dielectric properties, and energy storage potential for next-generation urban applications.
Experimental and optimization study of nanofluid utilized PVT systems with hydrocarbon based PCM: an energetic-exergetic approach
(Elsevier Ltd, 2025) Kurtoğlu Sontay, Kübra; Öğüt, Elif; Ustaoğlu, Abid; Özkan, Doğuş; Kurşuncu, Bilal
Cooling of photovoltaic thermal (PVT) systems is crucial for enhancing electrical efficiency by reducing the operating temperature of photovoltaic modules. Elevated temperatures negatively affect the performance of PV cells, leading to a decline in energy conversion efficiency. Photovoltaic thermal (PVT) systems, hybrid technologies that generate electricity and heat, are crucial for efficient energy conversion. This study uniquely explores the performance of a PVT system by integrating phase change materials (PCMs) and nanofluids in PVT systems combined with optimization analysis. By combining these advanced cooling methods, both electrical and thermal efficiencies are significantly optimized, demonstrating the potential for improved energy conversion in PVT systems. Within this scope, three identical systems–water-cooled, nanofluid-cooled, and a combination of nanofluid cooling with PCM- were analyzed regarding electrical, thermal, and exergy efficiencies. Identical panels were placed side by side and tested. Additionally, an optimization analysis has been conducted to enhance the performance of each panel by evaluating the thermal and electrical efficiency values obtained from experimental data based on system parameters and levels. In addition, thermogravimetric analysis and differential scanning calorimetry were conducted to determine the melting point of the Hydrocarbon-Based PCM. Compared with traditional methods, these analyses conducted in conjunction with the experimental study provide a more reliable basis for performance evaluation studies of PVT systems. The results of the experimental study showed that Nanofluid-Integrated PVT with Hydrocarbon-Based PCM achieved 11.7 %, 11.6 % and 10.6 % higher electrical efficiency, overall exergy and electrical exergy respectively, compared to the water-cooling method. Additionally, a 6.6-fold increase in thermal efficiency and a 4.4-fold increase in overall efficiency were observed. Similarly, compared to the nanofluid cooling method, this combination provided 4.9 %, 5.9-fold and 3.47 % improvements in the electrical, thermal and overall exergy efficiencies metrics. The results of the optimization analysis revealed that the combination of PCM and nanofluids ensures greater stability in electrical efficiency values under high-temperature differences. It was also observed that solar irradiance is the most influential parameter affecting efficiency. The obtained results demonstrate that the nanofluid-cooled system integrated with PCM has a significant impact on enhancing the performance of PVT systems. The combined use of nanofluid and PCM considerably improves all efficiency parameters.
The Role of RRA heat treatments on corrosion behaviour of AlSi10Mg produced by additive manufacturing
(Elsevier B.V., 2025) Özer, Gökhan; Tütük, İbrahim; Cingöz, Umut Can; Koç, Ebubekir; Karaaslan, Ahmet
In this study, AlSi10Mg samples were produced using the Powder Bed Laser Fusion (PBLF) method with standard parameters. Specimens were retrogression and re-aging (RRA) heat-treated at various conditions. The effects of the RRA heat treatments on the properties of PBLF parts were examined by microstructure, electrical conductivity, and electrochemical corrosion tests. Microstructural properties were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive X-ray (EDS) analysis. The results showed that after RRA heat treatment, the electrical conductivity of the material decreased slightly, and the corrosion resistance increased.
Analyzing traffic accident trends and correlations in Iraq: an investigative statistical approach
(American Institute of Physics, 2025) Hassooni, Dhuha Khalid; Ghasemlounia, Redvan; Hilal, Miami Mohammed; Al-Saffar, Zaid Hazim; Mohammed, Ghufran Taha
Traffic accidents are for two reasons, human-related and road-related structural behavior, two of which are in need of investigation. Herewith, this study embarks on an analysis of the dynamics of traffic accidents within Iraq, with a pronounced emphasis on statistical analyses concerning Baghdad, the capital city which is bearing the highest accident rates. An expansive dataset encompassing 10959 traffic incidents recorded over the year 2022 is utilized with this paper examining the distribution and nature of road accidents alongside the resultant degrees of injury. Through the deployment of Histograms and Q-Q Plots, the research confirms the normality of the data, paving the way for subsequent Pearson Correlation and ANOVA tests. These statistical methodologies reveal moderate, yet statistically insignificant, correlations between the nature of accidents and the characteristics of roads, with an F-statistic of 0.247 indicating no substantial effect of accident nature on the type of roads within Baghdad. Notably, the analysis extends to gender-referenced mortality records and root cause analyses that highlight significant seasonal fluctuations in accident occurrences, as well as pivotal gender disparities in road traffic incidents. The city-based accident records, detailed distributions of traffic accidents by nature, degree of injury, and recent accident trends, alongside statistical test visualizations, collectively underpin the analytical discourse. In conclusion, the paper asserts the critical necessity for targeted interventions and policy reforms aimed at mitigating these identified trends and contributing to the broader objective of enhancing road safety in Iraq.
Performance of ECC mortar containing limestone powder as a full replacement of fine aggregate
(American Institute of Physics, 2025) Mohammed, Ghufran Taha; Abed, Jasim Mohammed; Hassooni, Dhuha Khalid
Limestone powder (LP), derived from marble dust and stone waste, was utilized as a sand substitute in engineering cement compounds (ECC). This readily available material is a by-product of industrial waste from local quarries and stone cutting, and it was sourced from Mosul factories for this research. The study aimed to fully replace the fine aggregate in ECC with LP. Experimental findings demonstrated that LP had an impact on the hardening and drying process, resulting in longer drying and hardening times. Consequently, there was a decrease in the initial compressive and tensile strength. However, the use of finer LP compensated for this effect. Seven mixtures were tested with varying LP/PC (Portland Cement) replacement ratios (0.75, 1, 1.5, 2, 2.5, 3, and 3.5). The best results were obtained with mixture M5. The addition of LP led to an increase in compressive strength, with values reaching up to 32.40 MPa at 28 days. Finer LP particles further enhanced this effect. Conversely, increasing the LP/PC replacement ratio resulted in a reduction in tensile strength due to the higher water-cement ratio. The tempering effect contributed to an enhancement of 3.92 MPa in tensile strength. The incorporation of LP significantly reduced the environmental impact by decreasing the demand for natural resources. The use of limestone in the ECC mortar gave good results for tests of the mechanical properties of the mortar, as this is considered a viable option for use in building, construction, and repair operations. It is recommended that further improvements, research, and studies be conducted to improve the formulations and types of such alternative mortar.
The comparison of the effects of post-activity performance enhancement on foot plantar pressure and vertical jump in traditional set and cluster set training configurations
(MRE Press, 2025) Kale, Mehmet; Boyacı, Abdurrahman; Tolali, Ali Berkay; Yol, Yeliz; Ayaz, Ezgi; Tutar, Murat; Başoğlu, Umut Davut
Background: There is no study about the effects of post-activity performance enhancement on foot plantar pressure and vertical jump in different set configurations. This study aimed to compare the effects of post-activity performance enhancement on foot plantar pressure and vertical jump in traditional set and cluster set training configurations. Methods: The study included 27 volunteer university students (age: 20.0 ± 1.2 year, height: 180.2 ± 6.9 cm, body weight: 76.0 ± 11.8 kg). Static foot plantar pressure (SFPP), countermovement jump (CMJ), and squat jump (SJ) were performed as pre-tests 8 min after the half-squat 1 repetition maximum (HS 1RM) test. After pre-tests, 12 reps of training were performed with 70% of the HS 1RM by varying the training configurations of 1 × 12 reps traditional set (TS) on the 4th day, 3 × 4 reps cluster set 1 (CS1) with 30 s rest on the 8th day, and 6 × 2 reps cluster set 2 (CS2) with 10 s rest on the 12th day. Post-tests were performed in the following of each configuration. Repeated Measures Analysis of Variance (ANOVA) was used for the statistical comparison of the tests in four different time intervals. Results: There were no statistically significant SFPP differences in four different time periods, while statistically significant differences were found in the CMJ (p < 0.001) and SJ (p = 0.002). Pairwise comparisons showed that CMJ pre-test (CMJP RE ) had statistically significant differences with CMJT S, CMJCS1 and CMJCS2 . There were also differences between SJP RE and SJCS1, SJT S and SJCS2 for the SJ (p < 0.05). Conclusions: In conclusion, based on the results of the study, it is recommended to use any of the TS, CS1 and CS2 configurations to increase CMJ and to use the CS1 configuration to increase SJ as a performance enhancement at 8 min post-activity.
Enhanced photovoltaic power forecasting in renewable energy systems using genetic algorithm and SVM approaches
(Institute of Electrical and Electronics Engineers Inc., 2024) Büyükbıçakcı, Erdal; Atlı, Cahit; Dumanlı, Metin; Bulat, Selçuk
Modern energy management struggles to integrate renewable energy (RE) resources like wind and solar electricity into power networks. Accurate power forecasting models improve grid reliability and stability, helping solve this problem. This research analyses renewable energy power forecasting models' literature, focusing on significant improvements in the last decade.High-quality statistical error metrics-based forecasting model research articles are examined. The proposed system includes data analysis, feature engineering, and model training. Feature engineering includes normalization, PCA, and WD. To increase the feature set, photovoltaic (PV) and wind power generating factors are considered. The GA-SVM-based model forecasted solar power outputs in renewable energy systems with 93.18% training accuracy. Innovative renewable energy forecasting methods, including feature engineering and model optimization, are reviewed in this article. For optimal RE resource integration into power networks, renewable energy forecasting must be more accurate and efficient.
Deep learning algorithm for dessert recognition and nutritional evaluation
(Food Reseach Institute, 2025) Yusun, Sevilay; Yılmaz, Onur; Tarlak, Fatih
Food recognition systems are crucial for healthcare and the food industry, aiding in diet tracking, personalised meal planning, and promoting nutritional awareness. This work develops a software interface that recognises food products using deep learning algorithms, and announces their nutritional values and gastronomic characteristics. Specifically, photographs of various desserts were captured in a restaurant setting, and the classification performance of two deep learning models, GoogleNet and ResNet-50, was analysed. Both models achieved high accuracy rates exceeding 99.6 %, with ResNet-50 demonstrating superior performance due to its lower error rates, higher accuracy, and faster learning capabilities. Based on these results, the interface was developed using ResNet-50 to provide consumers with detailed gastronomic information about desserts and support healthier dessert choices. At present, the resulting software is limited to the 23 dessert items on the menu of Healin restaurant (Nisantasi, Istanbul, Turkey), and the way they look in that particular restaurant, but the scope could be expanded in the future. This innovative approach enhances consumer awareness about healthy eating while offering a competitive edge for the food industry by effectively meeting consumer expectations.
Investigation of the relationship between well-being, body awareness and depression parameters in healthy adults
(Inonu University, 2025) Safran, Ertuğrul; Zeylek, Beyzanur; Gültekin, Hasan Can; Usluer, İrem Nur; Otsay, Selva
In this study, the relationship between well-being, body awareness and depression in healthy adults has been examined. This study aims to contribute to the existing literature on this topic and provide a better understanding of the interrelationships between these factors and their influence on mental health. In this study, a cross-sectional design was used, and a total of 39 healthy individuals, consisting of 19 men and 20 women, were included. The participants' mean age was found to be 28.1±7.29 years. The Beck Depression Inventory, Body Awareness Questionnaire, and Well-Star Scale were used to assess depression, body awareness, and well-being, respectively. The data were analyzed using SPSSv.21, and Pearson or Spearman correlation analyses were used to determine the relationships between the parameters. The findings of the study revealed a significant positive relationship between well-being, body awareness, and depression parameters. The results indicated that body awareness practices can have a positive impact on emotional regulation and overall well-being. In conclusion, this study supports the hypothesis that body awareness plays a crucial role in mitigating depression in healthy adults. The correlations observed between well-being, body awareness, and depression parameters underscore the significance of body awareness in promoting mental well-being and reducing the risk of depression.
Exercise-induced muscle oxygenation changes in fibrosing interstitial lung diseases: a near-infrared spectroscopy study
(Mattioli 1885, 2025) Pehlivan, Esra; Zeren, Melih; Özcan, Zeynep Betül; Karaahmetoğlu, Fulya Senem; Demirkol, Barış; İlhan, Umut; Ataç, Amine; Çetinkaya, Erdoğan
Background: The impact of fibrosing interstitial lung disease (F-ILD) on the oxygenation of peripheral and respiratory muscles during exercise remains poorly understood. Specifically, it's unclear whether regional blood flow influences exercise capacity in these patients, and if so, to what degree. Objectives: This study aimed to investigate changes in oxygenation and blood flow volume of the intercostal (IC) and quadriceps femoris (QF) muscles during exercise in patients with F-ILD. Methods: Muscle oxygenation (SmO2) and total haemoglobin (tHb) changes of IC and QF were measured in 36 F-ILD patients using near-infrared spectroscopy (NIRS) during six-minute walking test (6MWT). Resting, minute-by-minute change, and average data were analyzed. Results: At rest, SmO(2)was significantly higher in IC compared to QF (p<0.001). When adjusted for SmO(2)at rest, SmO(2)at the different time points during 6MWT, average SmO(2)during 6MWT, and lowest SmO2 during 6MWT did not differ between QF and IC muscles. Also, SmO(2 )did not vary significantly during 6MWT in either QF (F=2.193) or IC muscle (F=1.262). THb increased more in QF than in IC. THb of IC inversely correlated to respiratory functions and 6MWT distance. Conclusion: Peripheral and respiratory muscle oxygenation in F-ILD seems to be normal. However, blood flow volume in exercising muscle, not muscle oxygenation, may be a contributing factor to exercise intolerance. Patients with poorer respiratory function may require excessive blood flow in their respiratory muscles which in turn may limit the blood flow available for exercising peripheral muscles.
Starting route: Istanbul street food
(Elsevier B.V., 2025) Yarmacı Güvenç, Nihan; Evren, Seray; Köz, Ela Nazlı
The gastronomy routes, which have the functions of diversifying tourism products, increasing the gastronomy tourism quality, creating attraction, and contributing social and economic development, are thought to be especially necessary in Istanbul. Integrating Istanbul's historical, cultural, and natural structure with the city's street food and turning them into a route is considered beneficial in various aspects. In this context the aim of the research is to create Istanbul street food routes, considering the outline formed within existing gastronomy-themed routes. In order to achieve the goal, the data were gathered from 36 gastronomy-themed routes in Istanbul presented on TripAdvisor were analyzed. The findings such as duration and width of routes, language options offered, cultural and historical sites visited and passed by in the routes, presented food categories, street food varieties according to districts, and experience offered are used to develop suggestions for Istanbul street food route.
Can Vitamin D reduce the need for SSRI by modulating serotonin synthesis? : a review of recent literature
(Springer Nature, 2025) Bostan, Zekiye Zeynep; Bulut, Melike Sare; Gezmen Karadağ, Makbule
Purpose of Review: This study aims to analyze the effects of vitamin D on serotonin synthesis, release, and function in the brain, and to explore its relationship with various psychiatric disorders. Recent Findings: The hormone calcitriol plays a vital role in regulating a multitude of biological processes within the human body. Its deficiency can lead to significant adverse effects on overall health and well-being, including physical and psychological consequences. Evidence indicates that vitamin D may exert influences through receptors in the brain, modulating serotonin production and influencing emotional and cognitive processes. Recent studies propose that elevated serum vitamin D may enhance mood and alleviate depressive states. The impact of vitamin D on cognitive function and behavior remains an area of ongoing investigation. This literature review analyses the available evidence on how vitamin D intake impacts the severity of illness and medication requirements in diverse psychiatric disorders. A review of the literature suggests that there may be a correlation between vitamin D and serotonin, which could potentially contribute to more favorable outcomes in the context of illness. Vitamin D may increase the amount of serotonin in the synaptic gap, which is the intended use of selective serotonin reuptake inhibitors (SSRIs), with its effect on the increase in serotonin release. Summary: According to reports, vitamin D supplementation in conjunction with SSRI group medication provides an additive effect for the management of psychiatric disorders.
The effect of internet addiction on surgical nurses' malpractice tendencies: Turkish sample
(Springer Nature, 2025) Gezginci Akpınar, Elif; Orhan, Büşra Nur; Göktaş, Sonay
Background This study aimed to determine the effect of surgical nurses' internet addiction on their malpractice tendencies. Methods The descriptive cross-sectional study included 1051 nurses working in the surgical awards of 10 hospitals in Istanbul. Data were collected using a descriptive characteristics form, the Internet Addiction Scale, and the Malpractice Tendency Scale. An increase in the score on the internet addiction scale indicates that internet addiction increases. In contrast, an increase in the score on the malpractice tendency scale indicates that malpractice tendency decreases. Data were analyzed using independent groups t-test, one-way ANOVA test, Pearson correlation and linear regression analyzes with IBM SPSS Statistics version 22.0 software. Results A weak negative correlation was found between the surgical nurses' total scores on the Internet Addiction Scale and Malpractice Tendency Scale (r=-0.422 p < 0.001). Internet addiction total score was also negatively correlated with malpractice tendency subscale scores for medication and transfusion administration safety (r=-0.450 p < 0.001); infection prevention (r=-0.416 p < 0.001); patient monitoring, device, and material safety (r=-0.321 p < 0.001); fall prevention (r=-0.325 p < 0.001), and communication (r=-0.332 p <= 0.001). In linear regression analysis, an increase in internet addiction overall and in the lack of control subscale was associated with greater malpractice tendency (ss=-0.422 and ss=-0.243, respectively). Internet addiction explained a total of 17.7% of the total change in malpractice tendency (R2 = 0.177). Conclusion Surgical nurses showed increased malpractice tendency as their internet addiction level increased. This relationship was seen in all domains of malpractice, including medication and transfusion administration safety, infection and fall prevention, communication, and patient monitoring, device, and material safety. It is recommended that in-service training be planned for conscious internet use to limit the time nurses spend on the internet during working hours.
Structural and electrical properties of CuO-doped NaNbO3 ceramics
(Walter de Gruyter GmbH, 2025) Berksoy Yavuz, Ayşe; Danışman, Murat
Ceramics are one of the key materials of today’s industry. The manufacturing technique used for preparing the ceramics greatly affects the material’s structural and electrical properties. Therefore, the elements and their distribution in the material as well as understanding their relation with the manufacturing process are the key factors for managing the expected outcome. In this study, NaNbO3 ceramics and the effect of CuO-doping in solid state calcination process was investigated. For this purpose pure, 0.5 mol.% and 1.0 mol.% CuO-doped sample discs were prepared. Crystallite size, strain, atomic structure, lattice parameters and atomic occupancies of the material were calculated by using X-ray diffraction patterns combined with Rietveld analysis. Additionally, the samples were investigated with the scanning electron microscopy technique to observe the effect of CuO doping. For electrical characterization, dielectric constant and tangent loss measurements were carried out on samples. As a result, it was concluded that CuO doping affected the crystal structure of the NaNbO3 which triggered the changes in its electrical behavior. The observed effects were more pronounced at 1.0 mol.% CuO content.
The acute effects of motor imagery combined with action observation breathing exercise on cardiorespiratory responses, brain activity, and cognition: a randomized, controlled trial
(Wiley-Hindawi, 2025) Atak, Ebrar; Ataç, Amine
Breath and brain activity have been integral to daily life since time immemorial. Cognition and cardiorespiratory responses are closely interlinked, necessitating further investigation into their dynamics. The potential benefits of combining motor imagery (MI) and action observation (AO) based breathing exercises in rehabilitation have not been fully explored. This study was aimed at assessing the acute effects of MI combined with AO on cognitive function and cardiorespiratory responses. Thirty-three healthy adults were randomized into MI combined with AO breathing (MI+AO), active respiratory exercise (ARE), and control groups, with equal distribution across groups. Electroencephalography (EEG) data were collected using a Muse EEG headband, and cognitive function was assessed using the Montreal Cognitive Assessment (MoCA) while imagining activities were measured via the Kinesthetic and Visual Imagery Questionnaire (KVIQ). Significant improvements in the Timed Up and Go (TUG) test and systolic blood pressure were observed in the ARE group (p < 0.05), alongside improvements in MoCA and KVIQ scores (p < 0.05). EEG data revealed significant decreases in delta and theta power at the temporoparietal (TP) location in the ARE group (p < 0.05). These findings suggest that MI and AO, when combined with respiratory exercises, may serve as effective passive strategies to support cognition and cardiorespiratory function, particularly in individuals who struggle to actively participate in pulmonary rehabilitation.

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