Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(62)
- Merdan, Mehmet(58)
- Duran, Celal(50)
- Ozdes, Duygu(47)
- Kaygusuz, Abdullah(43)
- Ashyralyyev, Charyyar(38)
- Karsli, Orhan(33)
- Öztürk, Serkan(32)
- Araz, Onur(31)
- Demir, Selim(29)
- Kulakaç, Nurşen(29)
- Dokuz, Abdurrahman(28)
- Arslan, Mehmet(27)
- Baltacı, Cemalettin(27)
- Maden, Nafiz(27)
- Sipahi, Ferkan(27)
- Topal, Fevzi(27)
- Turan, Ibrahim(27)
- Kandemir, Raif(25)
- Kurt, Kemal(24)
- Ozturk, Samet(24)
- Peker, Iskender(24)
- Vural, Alaaddin(24)
- Reis, Hatice Catal(23)
- Yücel, Cem(23)
- Aydin, Faruk(22)
- Baltaci, Cemalettin(22)
- Gücer, Mehmet Ali(22)
- Günen, Mehmet Akif(22)
- Kankal, Murat(22)
- Topal, Meryem(22)
- Karimullah, Suud Sarim(21)
- Uysal, Ibrahim(20)
- Kurnaz, Muammer(19)
- Tuncer, Metin(19)
- Yolcu, Halil(19)
- Çelik, Necati(19)
- Ürkek, Bayram(19)
- Şan, Murat(19)
- Aliyazicioglu, Yuksel(18)
Yayınlar
- MakaleAçık Erişim2026Impact of sprouting pretreatment on physicochemical properties and in vitro digestibility of buckwheat milk
Tunç, Merve Tuğçe; Yılmaz, Fırat; Akdoğan, Arda; Atalar, İlyas; Odabaş, Halil İbrahim
BACKGROUND: Buckwheat is a strategic raw material for plant-based milk production due to its gluten-free nature and rich bioactive profile. However, antinutritional factors and starch structure limit the nutritional quality and technological properties of such beverages. This study aims to investigate the effects of sprouting pretreatment (0, 24, 48, and 72 h) on the physicochemical properties, rheological behavior, phytic acid content, and in vitro protein/phenolics digestibility of buckwheat milk. RESULTS: As the sprouting duration increased, the viscosity of buckwheat milk decreased from 31.42 to 15.42 mPa s (at 72 h) due to the enzymatic hydrolysis of starch and proteins. Rheological analysis revealed that all samples exhibited weak gel behavior. Color analysis showed a decrease in lightness (L*) while redness (a*) and yellowness (b*) values significantly increased with sprouting. The results showed that sprouting significantly reduced phytic acid content, reaching its minimum at 72 h. The highest in vitro protein digestibility was observed at 24 h of sprouting, after which a relative decline occurred due to the formation of protein–polyphenol complexes and metabolic amino acid utilization. Furthermore, total phenolic content, flavonoid content, and antioxidant capacities measured after in vitro digestion were substantially higher in sprouted samples, especially at 48 and 72 h, than in the control. CONCLUSION: The results indicate that a sprouting duration of 48 h represents an optimal balance for the physical stability and nutritional enhancement of buckwheat milk. At this stage, significant increases in bioaccessible phenolics were achieved while maintaining a stable colloidal structure.
- MakaleYalnız künye2026Determinants of sleep quality and fatigue in patients undergoing hemodialysis
Kazak Salti, Aysun; Topali, Hasret; Türkmen, Osman Oğulcan
Aim: This research aimed to evaluate sleep quality and fatigue among individuals undergoing hemodialysis and to explore the determinants affecting these variables. Methods: This observational investigation was carried out among 78 who were regularly receiving hemodialysis therapy. The research was carried out between May and October 2025 in three different public hospitals among individuals undergoing hemodialysis treatment. Data were gathered using the Patient Information Form (PIF), the Fatigue Severity Scale (FSS), and the Pittsburgh Sleep Quality Index (PSQI). Results: The mean score of the hemodialysis patients on the FSS is 4.97 ± 1.11, and the mean PSQI value is 7.76 ± 3.64. A moderately positive and statistically noteworthy relation was observed between the PSQI and FSS scores. Additionally, a low negative meaningful correlation was seen between ferritin levels and the FSS scores, as well as between calcium levels and the PSQI scores. The use of medications related to chronic disease and the PSQI scores were identified as significant predictors of the FSS scores. Conclusion: Fatigue and sleep quality in individuals receiving hemodialysis treatment are related to each other, as well as to biochemical balance and treatment adherence.
- MakaleAçık Erişim2026Severity-Based Mapping of Land-Subsidence Hazard Zones and Critical Hotspots Using SBAS-InSAR and Spatial Statistics: The Konya Metropolitan Area, Turkey
Yalvac, Sefa; Bjelotomić Oršulić, Olga
Land subsidence induced by excessive groundwater withdrawal has become one of the most significant geohazards affecting the Konya Closed Basin, Turkey. Although previous studies have successfully monitored ground deformation using geodetic and remote sensing techniques, limited attention has been devoted to transforming deformation measurements into quantitative, spatially classified hazard information. This study presents a severity-based framework for delineating land-subsidence hazard zones and critical hotspots in the Konya metropolitan area by integrating SBAS-InSAR observations and spatial statistical analyses. A total of 82 Sentinel-1 SAR acquisitions (41 ascending and 41 descending images) acquired between January 2023 and May 2026 were processed using the Small Baseline Subset (SBAS) technique. Ascending and descending line-of-sight deformation measurements were combined to derive vertical deformation rates, which were integrated with spatial statistical indicators and a composite severity index to quantify deformation clustering and classify subsidence severity. Hazard zones and critical hotspot areas were delineated through severity-based classification and spatial connectivity analyses. The results reveal a continuous north–south-oriented subsidence deformation belt extending across the eastern Konya. Maximum vertical subsidence rates exceeded 230 mm/yr, while spatial statistical analyses confirmed strongly clustered and statistically significant deformation patterns. Severity-based hazard zonation identified four hazard classes and a continuous high-hazard corridor. Clustering analysis further identified a dominant hotspot belt covering approximately 160 km2, with mean subsidence rates of approximately 142 mm/yr. A sensitivity analysis of the composite severity index weighting scheme, the spatial statistical neighborhood distance, the DBSCAN clustering parameters, and the number of Jenks severity classes confirmed that the resulting hazard zones and critical hotspot belt are robust to reasonable parameter variations. The findings demonstrate that land subsidence in Konya is organized as a spatially continuous regional-scale deformation system rather than a collection of isolated subsidence centers. The proposed framework transforms InSAR-derived deformation measurements into quantitative, decision-support hazard information and provides a transferable methodology for land-subsidence hazard assessment in groundwater-stressed urban environments.
- MakaleAçık Erişim2026Characterization and Bioactive Properties of Exopolysaccharides from Pediococcus ethanolidurans Isolated from Kırçan (Smilax excelsa L.) Pickles
Karatas, Seyda Merve; Genc, Berna; Tunc, Merve Tugce
In this study, the characterization of some bioactive content of exopolysaccharide (EPS) extracted from Pediococcus ethanolidurans isolated with Smilax excelsa L. from conventionally produced pickles were investigated. Background: Although this study is the main study involving the characterization of EPS obtained from Pediococcus ethanolidurans, it is important because it has determined a natural polysaccharide that can be used in different fields in the industry. According to the obtained results, sugar analysis by GC-MS revealed that EPS consisted of glucose (7.59%), mannose (41.96%), fructose (16.98%), arabinose (3.15%) and rhamnose (30.30%). From the thermal behavior determined by differential scanning calorimetry (DSC), it was concluded that it should not be heated close to 250 °C. At the same time, according to the thermogram obtained as a result of X-ray diffraction (XRD) analysis, it was found to have a crystalline structure. EPS, which reached 73.844% efficiency, showed antibacterial activity against Listeria monocytogenes, Staphylococcus aureus and Escherichia coli, while 2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) scavenging activity was detected at 0.24 mM. It also has remarkable results, seen in cytotoxicity analysis against healthy HT-29 cells, demonstrating that it has proliferative activity as high as %125 In short, Pediococcus ethanolidurans was found to be a novel EPS producer with impressive properties.
- MakaleAçık Erişim2026The Non-Newtonian Differential Operators Associated With Iterated Generators
Dedeturk, Mutlu; Yalcin, Numan
This paper investigates non-Newtonian differentiation associated with integer iterates of generator functions. For (Formula presented.), we consider the derivative operators (Formula presented.) and derive explicit first-order representation, transformation, and factorization formulas that relate operators corresponding to different iteration levels. The construction is then extended to higher-order derivatives, where the resulting operators are represented through conjugation with the classical derivative operator Dr. Faà di Bruno’s formula and exponential partial Bell polynomials are used to obtain explicit higher-order expressions. Several examples involving exponential, double-exponential, and quadratic generators illustrate how the general results specialize to familiar non-Newtonian calculi. The results provide a unified treatment of non-Newtonian differentiation based on iterated generators and clarify its relationship with classical differentiation.
- MakaleAçık Erişim2026A concise approach for interpreting the removal kinetic of 2,4-D by carbonized peanut shell
Gülen, Jale; Karpuz, Ömer
The present study displays the adsorption characteristics of dichloro phenoxy acetic acid (2.4-D) on biomass-based peanut shell (BPC) carbon. Experiments were conducted by varying some parameters like concentration, pH, and temperature. 2,4-D adsorption uptake was increased from 0.504 to 3.826 mg/g with rising concentration from 1 µg/mL to 5 µg/mL and giving the highest adsorption at acidic pH. 1.605 mg/g uptake was obtained at pH 2.7. The data were in good harmony with Langmuir, Freundlic, Dubinin-Radushkevich (DR), and Generalized isotherms. The monolayer adsorption capacity was found as 42.62 ± 0.3257 mg/g. The kinetic was governed by the first-order kinetic. Various kinetic models were employed and particle diffusion was predominated for 2,4-D adsorption. Thermodynamics were explained in detail. The mean adsorption energy (E) was shown by the physical sorption, and Gibbs energy was the indicator of the spontaneous nature of the adsorption. Standard enthalpy, entropy, and Gibbs values were recorded as 5.064 ± 139.84, 18.849 ± 0.148, and 0,7414 ± 0.0943 J/mol. The results showed that BPC was an eco-friendly and cost-effective material.
- MakaleAçık Erişim2026Spinal Manipulation, Dynamic Neuromuscular Stabilization, and Their Combination in Chronic Non-Specific Low Back Pain: A Four-Group Randomized Clinical Trial
Alak, İsmail; Hatik, Sefa Haktan; Büyükkirli, İlker Can; Aydin, Emine Busra
Spinal manipulation (SM) and stabilization-focused exercise are commonly used in chronic low back pain, yet evidence on their combined effects is limited. This randomized controlled trial compared SM and dynamic neuromuscular stabilization (DNS), alone or combined, in chronic non-specific low back pain. Forty-eight participants were randomized (1:1:1:1; n=12/group) using a computer-generated sequence with opaque sealed-envelope concealment to Control, SM, DNS, or SM+DNS (SMDNS). Interventions (except Control) were delivered twice weekly for 4 weeks. Outcomes (VAS, ODI, RMDQ, DNS-HS, PostureScreen) were assessed at baseline and follow-up. Assessor blinding was not feasible (treating physiotherapist also assessed outcomes); analyses used coded group labels.Within-group analyses showed significant improvements in most outcomes (p<0.05), except for postural deviation in the SM group and frontal postural deviation in the DNS and SMDNS groups. Between-group comparisons indicated greater early pain reduction with SMDNS at the second assessment (p<0.05). By week 4, pain decreased most in DNS and SMDNS (VAS Δ=−3), while SM showed Δ=−2 and Control showed no change. Disability improved most in DNS/SMDNS (ODI Δ=−13.39/−15.38; RMDQ Δ=−5.24/−5.77). Week-4 effect sizes favored SMDNS over Control and SM for key outcomes (VAS D2 g=2.07 vs Control, 1.24 vs SM; ODI PC2 g=1.73 vs Control, 1.05 vs SM; RMDQ PC2 g=1.34 vs Control, 0.23 vs SM). Overall, adding SM to DNS may enhance early pain relief; the magnitude of between-group differences (effect sizes with 95% CIs) supports interpretation, while clinical relevance should be considered alongside established MCIDs and confirmed in larger trials with longer follow-up.
- MakaleAçık Erişim2026[Policing the Postcolonial Family: Rethinking Hanif Kureishi’s “My Son the Fanatic” through F. Fanon and D. Bigo]
Yalçın, Elif Güvendi
[Abstract] This article offers a critical re-evaluation of Hanif Kureishi’s short story “My Son the Fanatic” at the intersection of Frantz Fanon’s postcolonial psychoanalysis and Didier Bigo’s security studies. Moving beyond conventional readings that center generational conflict, religious radicalism, or immigrant assimilation, the study foregrounds surveillance as a constitutive force shaping postcolonial subjectivity within diasporic family dynamics. It is argued that Kureishi’s narrative dramatizes the internalization of state logics of suspicion and control, whereby the immigrant father, Parvez, becomes both the subject and the agent of a dispersed surveillance apparatus. Drawing on Bigo’s concept of the ban-opticon and its emphasis on anticipatory governance and affective regulation, the article examines how fear of deviance displaces paternal care with a mode of domestic policing. Simultaneously, Fanon’s notion of epidermalization elucidates how the colonized subject internalizes visibility as a site of control, resulting in a fractured self constantly navigating racialized gazes and cultural expectations. This work is licensed under the Creative Commons Attribution 4.0 International licence (CC BY 4.0).
- MakaleAçık Erişim2026A Qualitative Research on The Applicability of Value-Based Payment Method in The Health System of Türkiye; [Değer Bazlı Geri Ödeme Yönteminin Türkiye Sağlık Sisteminde Uygulanabilirliği Üzerine Nitel Bir Araştırma]
Tekinarslan, Merve; Kaya, Sıdıka
This study explores value-based payment reforms in healthcare, aiming to enhance productivity, efficiency, and quality of care by shifting the focus from quantity to value. Using a grounded theory approach and the Delphi technique, 28 healthcare stakeholders were selected through purposive sampling. Data were analysed with MAXQDA 2020, and value parameters were ranked by importance. Findings define value in healthcare as "a quality service," with participants supporting value-based repayment despite some limitations. Fifteen key value measurement parameters were identified. The study recommends addressing resistance to change and implementing necessary revisions for Türkiye to adopt this model successfully.
- MakaleYalnız künye2026A comprehensive optimization framework for indoor laser-based optical wireless communication using gimbal-steered transmitters
Başer, Oğuzhan; Küçük, Mehmet Ali; Türk, Kadir
The growing demand for high-speed wireless communication, driven by data-intensive applications such as high-definition video streaming and augmented reality, has highlighted the limitations of the Radio Frequency (RF) spectrum. Optical Wireless Communication (OWC) has emerged as a promising complementary technology, offering wide bandwidth, license-free operation, high security, and immunity to electromagnetic interference. Among OWC transmitters, Laser Diodes (LDs) provide high modulation bandwidth and narrow divergence angles, enabling data rates of several tens of gigabits per second. However, the narrow beam of LDs requires precise Line-of-Sight (LoS) alignment, making beam steering essential. This study focuses on optimizing the positioning and orientation of gimbal- or galvo-based LD transmitters in indoor OWC systems to minimize outage probability under LoS constraints and physical obstructions. An outage probability model considering room geometry and device field-of-view angles is developed and analyzed for three scenarios within a 7 × 5 m room: an empty environment, a room with a 1 × 1 m column, and a user-occupancy-aware environment. The complex optimization problem is solved using multiple meta-heuristic algorithms, including Particle Swarm Optimization (PSO), L-SHADE, and Stochastic Fractal Search with Fitness-Distance Balance (FDB-SFS). The obtained results are subsequently validated through grid search approach. The proposed approach achieves significant outage reduction, demonstrating that incorporating obstacle and user-distribution information enables efficient coverage with fewer terminals, reaching outage probabilities as low as 0.4%.
- MakaleAçık Erişim2026Investigation of the Antioxidant, Antibacterial, and Food Safety Potential of Silver and Copper Nanoparticles Green Synthesized Using Pointed Cherry Laurel (Prunus laurocerasus L.) Extract
Kobya, Havva Nur; Gül, Abdulkadir; Karpuz, Ömer; Baltacı, Cemalettin
This study reports the green synthesis of silver (PFAgNPs) and copper (PFCuNPs) nanoparticles using an aqueous extract of pointed cherry laurel (Prunus laurocerasus L.) fruit (PF-E) and explores their applicability in food safety. The NPs were characterized via UV–Vis spectroscopy, FT-IR, XRD, SEM, EDX, and TEM confirming their successful formation and morphology. Total phenolic content (TPC), flavonoid content (TFC), and antioxidant capacity (TAC) were measured for both PF-E and the synthesized NPs. While PFCuNPs exhibited higher TPC, PFAgNPs showed superior TFC and TAC. Notably, antioxidant assays (DPPH, ABTS, FRAP) indicated stronger radical scavenging activity for PFCuNPs. Antibacterial tests against Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, and Pseudomonas aeruginosa revealed broad-spectrum activity of PFAgNPs, with the highest inhibition against E. coli (19.4 ± 0.3 mm), whereas PFCuNPs showed dose-dependent efficacy, strongest against E. faecalis (9.6 ± 0.2 mm). LC–MS/MS analysis of the PF-E extract revealed quinic acid (63.42 mg/g), chlorogenic acid (2.38 mg/g), protocatechuic acid (0.07 mg/g), protocatechuic aldehyde (0.04 mg/g), hesperidin (0.03 mg/g), and naringenin (0.02 mg/g) as major components. The adsorption efficiencies of the synthesized PFAgNPs and PFCuNPs were evaluated against the toxic food contaminants patulin and HMF using both standard aqueous solutions and real food systems (apple juice). In standard aqueous solutions, PFAgNPs achieved removal efficiencies of 70.96% for patulin and 52.22% for HMF, while PFCuNPs showed 61.08% and 36.38%, respectively, at 5 g/L after 240 min. In real food systems, the adsorption efficiencies decreased, with PFAgNPs and PFCuNPs removing 34.24% and 32.90% of patulin, and 39.09% and 31.87% of HMF, respectively. The adsorption kinetics of HMF and patulin onto PFCuNP and PFAgNP were found to conform to both the pseudo-first-order and pseudo-second-order kinetic models for aqueous solutions as well as real samples. These findings confirm that the biosynthesized NPs offer dual functionality as antibacterial agents and toxin adsorbents, presenting a green, sustainable approach to food safety enhancement.
- MakaleAçık Erişim2026Psychological dynamics shaping performance perception in athletes: the influence of coaching behaviours, psychological safety, self-efficacy, and resilience
Sakallı, Derya; Şenel, Ender; Menteş, Görkem; Salman, Kaan
This study aimed to examine how athletes’ perceptions of supportive and controlling coaching behaviours influence their perceived performance through the mediating effects of psychological safety, self-efficacy, and psychological resilience. Unlike previous work, this study integrates these three psychological factors into a single structural model, offering a comprehensive understanding of the mechanisms linking coaching behaviours to performance perceptions. Data were collected from 369 Turkish athletes representing different sports and competitive levels using validated self-report questionnaires. Structural equation modelling (SEM) was employed to analyse the direct and indirect relationships among variables. The results revealed that supportive coaching behaviours positively predicted perceived performance through increased psychological safety, self-efficacy, and resilience, whereas controlling coaching behaviours had the opposite effect. Among the mediators, self-efficacy emerged as the strongest predictor of performance perception. These findings provide novel evidence that psychological safety and resilience strengthen this relationship by fostering adaptive and confident athlete functioning. The study contributes to the literature by demonstrating the integrative role of psychological resources within the frameworks of self-determination and social cognitive theories. Practically, it underscores the importance of supportive coaching practices that enhance psychological resources essential for sustained motivation, well-being, and optimal performance.
- MakaleAçık Erişim2026The Cybernetics of Gomi: Transhumanism, Materiality, and the Expulsion of the Subject in William Gibson’s The Winter Market (1986)
Uruk, Ahmet
Referred to by Julian Huxley in his 1957 work New Bottles for New Wine, transhumanism champions the use of science and technology to transcend human biological limits and attain a “posthuman” state. While science fiction frequently familiarizes audiences with these speculative dimensions, William Gibson’s short story The Winter Market (1986) exposes the dehumanizing impacts of technological immortality and mind uploading in a cyberpunk world. Rather than presenting a seamless techno-utopian future, Gibson’s narrative centers on the concept of gomi—Japanese for trash or junk—to illustrate the literal and psychological expulsion of the human subject. Therefore, this paper argues that The Winter Market uses the material reality of gomi as its core structural and thematic focus, exposing how advanced capitalism and cybernetic technology reduce the organic body, human experience, and artistic expression to marketable, discarded commodities. Through a close reading of Gibson’s distinct language and narrative form, this study, ultimately, interrogates the trade-offs of technological transcendence, demonstrating how the pursuit of disembodied immortality culminates in alienation and the fragmentation of authentic identity.
- MakaleAçık Erişim2026Monte Carlo calculation of geometry-dependent true coincidence summing correction factors for the gamma-rays of 214Bi in HPGe detectors
Çelik, Necati
True coincidence summing (TCS) effects in gamma-ray spectrometry introduce significant systematic uncertainties in activity determinations, particularly for radionuclides with complex decay schemes such as 214Bi. This study presents a comprehensive Monte Carlo investigation of TCS correction factors (CFs) for seven major gamma-ray lines of 214Bi. The primary contribution of this study is the systematic decoupling of detector geometry effects: nine distinct HPGe detector configurations were simulated with varying crystal dimensions, dead layers, and hole geometries, followed by an isolated analysis of crystal radius versus crystal length contributions for both point and extended source geometries. The decay scheme of 214Bi was meticulously modeled using Nucleide 2000 data, incorporating all beta branches, gamma transitions, internal conversion coefficients, and cascade probabilities to ensure high-fidelity representation of the decay scheme. Results demonstrate that crystal radius exerts a substantially stronger influence on TCS CFs than crystal length, with point source values at 609.3 keV increasing by 18.2% across the radius range of 2.1–4.5 cm, compared to only 3.7% variation across the length range of 3–11 cm. Extended source geometries reduce TCS CFs by 5%–11% compared to point sources across all configurations, highlighting the mitigating effect of distributed sources. Energy-dependent behavior is also evident: the 609.3 keV line exhibits strong summing-in (CF > 1.3 for large detectors), while the 1377.7 keV line shows dominant summing-out (CF < 0.86). These findings provide gamma-ray spectrometrists with insight into the relative importance of detector dimensions for TCS effects, suggesting that crystal radius is the primary geometric parameter influencing coincidence summing corrections. The observed trends illustrate how TCS corrections vary with detector dimensions, offering spectrometrists a basis for understanding the relative sensitivity of these corrections to different geometric parameters.
- MakaleYalnız künye2026Effects of a puppet-assisted house-tree-person test on fear and anxiety in children receiving chemotherapy and associated influencing factors: A projective, quasi-experimental study
KAHRIMAN, Ilknur; AKSOY, Bahar; KANDAZ, Ufuk; BORAN, Serpil; GÖGER, Berrin; KIRBAŞ, Zila Özlem
Objectives This study investigated the effect of the puppet-assisted House-Tree-Person Test (HTP-T) on fear and anxiety levels in children undergoing chemotherapy treatment and the factors influencing these outcomes. Methods The study employed a one-group pretest–posttest quasi-experimental design combined with HTP-T analysis. The study was conducted with 29 children aged 5–12 years receiving chemotherapy at the pediatric hematology-oncology outpatient clinics of a university hospital in the Eastern Black Sea Region of Türkiye during the 2022–2024 years. Data were collected using “the Demographic Information Form for Children and Parents, the Children's State Anxiety Scale (CSA), the Children's Fear Scale (CFS), and HTP-T". Data analysis was performed using descriptive statistics, repeated measures ANOVA, and HTP-T analysis. Results Statistically significant differences were observed in children's mean CSA (F = 3.898, p = 0.026, η2 = 0.122) and CFS (F = 5.313, p = 0.008, η2 = 0.159) scores across the pre-treatment, during-treatment, and post-treatment measurements. The HTP-T analysis revealed that children had difficulty regulating anxiety and fear, expressed concerns about family and environmental events, reported feelings of loneliness, and exhibited strong emotional attachment to their families. Conclusion The study demonstrated that incorporating puppet-assisted HTP-T during chemotherapy contributed to reducing children's fear and anxiety and offered a useful approach for identifying influencing factors. Implications for nursing practice HTP-T, a therapeutic play technique incorporating puppetry and projective methods, may be effective in reducing fear and anxiety among children undergoing chemotherapy.
- Derleme MakaleAçık Erişim2026The effect of non-pharmacologic treatments in individuals with problematic pornography use: a meta-analysis of randomized controlled trials
Yıldız Karaahmet, Aysu; Bilgiç, Fatma Şule; Karakaş, Sevda
This study aimed to systematically review and meta-analyze the effects of non-pharmacological treatments on problematic pornography use (PPU), pornography use frequency, sexual dysfunction, psychological symptoms, and quality of life in individuals with PPU. A comprehensive literature search was conducted in PubMed/MEDLINE, Embase, PsycINFO, and Web of Science between June and July 2024. MeSH-based keywords were used to identify relevant Randomized Controlled Trials (RCTs) published in the last ten years. Five RCTs with a total of 826 participants were included. Non-pharmacological interventions significantly reduced PPU (SMD: −1.16; 95% CI: −2.10 to −0.22; p = 0.02) and pornography use frequency (SMD: −0.74; 95% CI: −1.43 to −0.05; p = 0.04) compared to control groups. No statistically significant effects were found for sexual dysfunction (SMD: −0.47; p = 0.05) or psychological symptoms (SMD: −0.42; p = 0.06), though moderate effects were observed. Risk of bias was high or unclear in terms of participant and outcome blinding. Non-pharmacological interventions appear effective in reducing PPU and use frequency. Although effects on sexual function and psychological symptoms were not significant, the findings suggest potential improvements in overall quality of life.
- MakaleAçık Erişim2026The Spiritual Roots of Sustainable Consumption Among Muslim Consumers: Environmental and Health Consciousness as Mediating Pathways
Hacıkeleşoğlu, Hızır; Avcı, İbrahim; Vural, Muhammet Enes
Research on sustainable consumption has largely emphasized secular motivations, leaving the psychological role of spirituality/religiosity underexplored within Muslim societies. Addressing this gap, this study investigates the relationship between spirituality and sustainable consumption behaviors (SCBs) among Muslim consumers in Türkiye, with environmental and health consciousness examined as parallel mediating mechanisms. Data were collected from 414 adult Muslim consumers through an online survey and analyzed using confirmatory factor analysis and structural path analysis via Hayes’ PROCESS macro (Model 4). The empirical findings indicate that spirituality is significantly and positively associated with sustainable consumption behaviors both directly and indirectly. Environmental consciousness emerged as a numerically stronger mediating pathway than health consciousness in the relationship between spirituality and sustainable consumption. Notably, when both mediators are included in the model, the direct path from spirituality to sustainable consumption behaviors becomes non-significant, consistent with a full-mediation pattern in the estimated model, in line with the value–attitude–behavior hierarchy. These results suggest that spirituality’s association with consumption decisions is, within the estimated model, transmitted through intervening attitudinal states. The study suggests that sustainable consumption initiatives in Muslim contexts can be meaningfully strengthened by integrating eco-friendly practices with consumers’ underlying spiritual and religious values.
- MakaleAçık Erişim2026CsPbBr3 single-crystal growth by temperature-lowering method as a case study for EGS4 benchmarking against commercial radiation detectors
Akbulut Özen, Songül; Özen, Murat; Çelik, Necati
CsPbBr3 single-crystals were synthesized using a hydrobromic acid–based temperature-lowering method, and their structural and optical properties were confirmed by XRD, DSC, and UV–Vis analyses. A solubility curve was established to optimize growth conditions, enabling enlargement of the seeded crystals. The radiation detection potential of CsPbBr3 was evaluated using EGS4 Monte Carlo simulations across photon energies ranging from 10 keV to 1 MeV. Simulated full-energy peak efficiencies and resolution values were compared with conventional detectors (Si(Li), NaI, and HPGe) and with alternative perovskite derivatives (CH3NH3PbBr3, Cs4PbBr6, CsPb2Br5). CsPbBr3 exhibited efficiency scaling with detector volume and resolution behavior consistent with the statistical 1/√E dependence typical of direct-gap semiconductors. While HPGe maintained superior intrinsic resolution, CsPbBr3 offered promising room-temperature performance without cryogenic requirements. These results demonstrate that the temperature-lowering method provides a viable route to scalable CsPbBr3 single-crystals and confirm their potential as cost-effective, high-Z semiconductor detectors for X- and γ-ray applications. The findings establish a foundation for the further optimization of perovskite-based radiation detection technologies.
- MakaleAçık Erişim2026Distribution and radiological risk assessment of natural and artificial radionuclides in soils from the Aktutan hydrothermal alteration zone, Türkiye
Kaya, Ali
This study investigates the distribution of natural radionuclides (226Ra, 232Th, and 40K) and the artificial radionuclide 137Cs in soil samples collected from the Aktutan hydrothermal alteration zone in Gümüşhane, Türkiye. Hydrothermal systems are known to enhance radionuclide mobility and enrichment due to fluid–rock interactions, making them important environments for radiological assessment. However, no previous comprehensive radiological study has been conducted in this region. A total of 12 soil samples were collected and analyzed using high-purity germanium (HPGe) gamma-ray spectrometry. The measured activity concentrations ranged from 16 to 58 Bq·kg−1 for 232Th, 5 to 282 Bq·kg−1 for 226Ra, and 246 to 647 Bq·kg−1 for 40K, while 137Cs was detected in several samples with a maximum value of 5.7 Bq·kg−1. The elevated 226Ra concentrations observed in specific locations may be associated with localized hydrothermal alteration and possible uranium enrichment. Radiological hazard parameters, including absorbed dose rate, annual effective dose, radium equivalent activity, and hazard indices, were calculated. Most values were within internationally recommended limits; however, two sampling sites exhibited elevated radiological risk indicators, particularly in terms of excess lifetime cancer risk. Although the number of samples is limited, the selected locations represent areas of intense hydrothermal alteration and provide preliminary insight into radionuclide distribution in the region. The findings highlight the importance of localized geological controls on radioactivity and suggest the need for continuous environmental monitoring in areas with elevated radionuclide concentrations.
- MakaleAçık Erişim2026Impacts of Phenolic Compounds Alone and in Combination with Natural Substances or Drugs on Cancer Cells
Budak, Burhan; Sarikaya, Sevim Beyza Ozturk
Phenolic compounds (PCs) are secondary metabolites found in the root and flower parts of plants that help protect the plant from pathogens. The amount and content of the plant species and the environment in which they live vary. Because PCs have antioxidant properties, they have a preventive effect against oxidising substances. Therefore, PCs in the human diet contribute to the prevention of cancer, osteoporosis, diabetes, and many other diseases. Cancer is the most dangerous and deadly disease among these diseases today. Although many chemotherapeutic drugs are used against cancer, the tendency to use other drugs or other applications has increased because the effectiveness of chemotherapeutic drugs is low and healthy cells are damaged in the process. PCs boost the effectiveness of chemotherapeutic drugs against cancer cells while, preserving the health of other cells. In this review, in vivo and in vitro studies conducted in cancer lines, applications of PCs alone, combined applications of PCs with natural substances, and the effects of PCs with drugs were investigated and discussed. In conclusion, gallic acid, ellagic acid, caffeic acid, and ferulic acid are frequently used in cancer treatment. These findings highlight the potential of PCs as versatile adjuvants in cancer treatment, which can increase drug efficacy, protect healthy cells, and minimise toxicity. Consequently, they highlight the therapeutic potential of PCs as complementary agents in cancer treatment strategies.