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 Erişim2027A hierarchical metaheuristic framework for CPT-based soil liquefaction prediction with Kolmogorov–Arnold Network variants
Günen, Mehmet Akif; Öztürk, Kaşif Furkan
Soil liquefaction is a critical geotechnical hazard that threatens the safety of civil infrastructure under seismic loading, necessitating robust and interpretable prediction models. This study proposes a hierarchical framework for CPT-based soil liquefaction prediction using meta-heuristic-optimized Kolmogorov–Arnold Network (KAN) variants. The framework follows a two-stage optimization strategy. First, six state-of-the-art meta-heuristic algorithms are statistically compared to identify the most effective optimization method. Second, the selected algorithm is employed to optimize six KAN variants, including FastKAN, EfficientKAN, FourierKAN, ChebyKAN, JacobiRKAN, and PadéRKAN. Statistical comparisons based on the Wilcoxon signed-rank test demonstrate that the Colony-Based Search algorithm (CSA) achieves lower objective-function values than the competing meta-heuristics (p<0.01) and is therefore adopted as the core optimization strategy. Performance evaluation reveals that the CSA-optimized ChebyKAN model achieves the highest predictive accuracy, with an F1 Score of 0.8875 ± 0.011 and an AUC of 0.9115 ± 0.013. Pairwise McNemar tests detected no statistically significant difference in classification decisions for any evaluated model pair (p>0.01). SHapley Additive exPlanations analysis identified qc, qc1N, and amax as the variables with the largest model-specific attributions, whereas d, c, and σv received lower attributions. A cost-sensitive error analysis further showed that ChebyKAN produced the lowest false-negative rate and the lowest asymmetric error cost under 5:1 and 10:1 false-negative-to-false-positive cost scenarios, supporting its conservative behaviour for safety-critical liquefaction screening. The results establish the proposed CSA–KAN framework as a reliable, high-accuracy, and interpretable solution for CPT-based soil liquefaction assessment in geotechnical engineering practice.
- MakaleYalnız künye2027Analytical UWB waveform design based on linear combination of Gaussian-modulated sinusoids
Oğuz, Yasin; Kaya, Haydar
This study proposes an analytical ultra wide-band (UWB) waveform design based on linear combination of Gaussian-modulated sine waves to prevent interference with existing narrowband systems, in accordance with the Federal Communications Commission (FCC) UWB spectral mask. The proposed model determines the common pulse duration and the center frequencies of the components in closed-form using the relationships among the number of components, the overlap of components and the design band frequency limits. As a result, UWB waveforms for different design scenarios can be generated without computationally intensive algorithms. The method was evaluated in terms of spectrum utilization efficiency (SUE) within the 3.1-10.6 GHz indoor FCC UWB band. Results show that same SUE can be achieved with fewer components by appropriate overlap level. Comparisons with existing studies demonstrate that the proposed approach provides high performance for similar component numbers while avoiding complex optimization-based models with high computational cost. Moreover, the normalized spectral form and SUE are preserved for different sub-band widths when the analytical parameters are updated according to the new frequency limits. The results demonstrate that the proposed method is an effective waveform design approach due to its low computational complexity, high SUE, and scalability to multi-subband full-band UWB designs.
- MakaleYalnız künye2027Serial mediating role of belonging and state mindfulness in the relationship between clinical learning environment and caring behaviors in nursing students
Özalp, Cemal; Tuncer, Metin; Kaya, Abdulsamed; Şahin, Fatih
Aim: The study aimed to examine the relationship between clinical learning environment and caring behaviors in nursing students and to test the serial mediating roles of belonging and state mindfulness in this relationship. Background: The psychosocial mechanisms linking the clinical learning environment to caring behaviors remain unclear, particularly the combined roles of belonging and state mindfulness. Design: The study had a cross-sectional design and was conducted in line with the STROBE guidelines. Methods: The sample consisted of 452 undergraduate nursing students studying at a state university in Turkiye. The data were collected between December 2025 and January 2026 using the Personal Information Form, Clinical Learning Environment Scale, Nursing Department Belonging Scale, State Mindfulness Scale, and Caring Behaviors Inventory. Results: The clinical learning environment was found to be positively correlated with sense of belonging (B = 0.412, p < .001). Sense of belonging significantly predicted both State Mindfulness (B = 0.607, p < .001) and caring behaviors (B = 0.857, p < .001). State mindfulness is also a significant predictor of caring behaviors (B = 0.734, p < .001). Indirect effects analyses indicated that the clinical learning environment was associated with caring behaviors through sense of belonging and through the sequential pathway involving both sense of belonging and state mindfulness. However, the direct effect of the clinical learning environment on caring behaviors was not significant. Additionally, the indirect effect of the clinical learning environment on caring behaviors through state mindfulness alone was not significant. Conclusions: The results of the study showed that the clinical learning environment is associated with nursing students' caring behaviors indirectly through sense of belonging and state mindfulness, rather than directly.
- MakaleYalnız künye2027Efficacy of blue light-assisted ClO2 for Salmonella decontamination on basil leaves: inactivation kinetics, quality preservation, and microbiota dynamics
Lian, Yi; Liu, Songlin; Ozturk, Samet; Wei, Xinyao
Frequent Salmonella outbreaks associated with basil leaves highlight the need for effective postharvest decontamination. Conventional microbial sanitizers often fail to inactivate pathogens while preserving product quality, creating a demand for novel decontamination technologies suitable for basil. In this study, the microbial safety of basil under typical consumption scenarios was evaluated and a blue light-assisted ClO2 (COM) decontamination process for basil leaves was developed. Mathematical models were used to describe the microbial inactivation kinetics, and a systematic comparison was conducted against traditional single-chemical sanitizers (H2O2, HClO, ClO2, and 75% ethanol) in terms of microbial safety and final product quality. Results showed that simulated cooking scenarios, including pizza baking and hot soup immersion, were insufficient to reduce the Salmonella levels below the detection limit (<10 CFU/g) under a high initial load of 9.7 log CFU/g. Compared to the single-chemical treatments, 100 mg/L COM treatment achieved significantly higher decontamination (p < 0.05) by reducing Salmonella and background microbiota by 4.8 and 3.5 log CFU/g, respectively, with treatment time of 15 min. The inactivation kinetics of Salmonella showed a non-linear inactivation kinetics, which was captured by the Weibull model with a low RMSE value (RMSE = 0.16), although the AICc value (11.37) indicated limited model parsimony. Furthermore, the COM treatment significantly reduced bacterial richness (with the Chao1 index decreasing from 316 to 71) and effectively inactivated key spoilage organisms (Pseudomonas) as well as members of the Enterobacteriaceae, Actinomycetota, and Bacillota groups. Compared with the 100 mg/L ClO2 treatment alone (1.40 mg/kg), the 100 mg/L COM treatment resulted in a ClO2 residue concentration below the detection limit, without significantly altering visual appearance, color, chlorophyll content, total phenolics, or polyphenol oxidase activity (p > 0.05). Overall, blue light-assisted ClO2 treatment effectively reduced microbial contamination and reduced ClO2 residues while preserving the physical quality of basil, representing a promising decontamination approach for the fresh produce industry.
- MakaleAçık Erişim2027Development of flood fear scale and investigation of psychometric properties
Torpuş, Kemal; Cengiz, Sevil
This study aimed to develop a flood fear scale. The study was designed as a methodological and cross-sectional study. The study was conducted with 1158 participants aged 18–65 residing in Türkiye’s Black Sea Region between February 15, 2025, and May 15, 2025. SPSS 25 and Amos 21 programs were used to analyze the data. The flood fear scale consists of four dimensions and 26 items. The Cronbach’s alpha coefficient was 0.948, and the scale explained 62.644% of the total variance. The model fit indices were χ2/ df = 3.444, RMSEA = 0.065, SRMR = 0.056, CFI = 0.921, IFI = 0.922, NFI = 0.893, and TLI = 0.912. The findings indicated that the flood fear scale provided valid and reliable for adults aged 18–65 residing in Türkiye’s Black Sea Region. The total scores obtainable from the scale range from 26 to 130, with higher scores indicating an increased level of flood fear. Scale can be used to assess flood fear in community-based disaster risk reduction efforts. It is recommended that validity and reliability studies of the scale be conducted in different cultures and geographical regions.
- MakaleAçık Erişim2027Design, Synthesis, and X-ray Characterization of Benzohydrazide Derivatives as Cholinesterase Inhibitors for the Treatment of Alzheimer’s Disease: An Experimental and Computational Approach to Biological Activity
Topal, Fevzi; Ünver, Hakan; Topal, Meryem; Çevik, Ulviye Acar; Kırboğa, Kevser Kübra; Işık, Mesut; Beydemir, Şükrü
In this study, a series of new benzohydrazide derivatives (1a-i) were synthesized, and characterized as potential cholinesterase inhibitors for use in the treatment of Alzheimer’s disease (AD). The inhibitory activities of the synthesized compounds against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes were evaluated using in vitro and in silico methods. IC50 values for AChE inhibition ranged from 29.50 to 46.21 nM, with compound 1c exhibiting the highest inhibitory potential at an IC50 of 29.50 nM. For the BChE enzyme, the strongest effect was observed with compound 1d at an IC50 of 55 nM. The synthesized derivatives exhibited higher inhibitory potential compared to the reference tacrine (IC50: 58.73 nM for AChE and 187.30 nM for BChE) against cholinesterase enzymes through both competitive and non-competitive inhibition mechanisms. Molecular docking (ΔG: -10.67 to -9.95 kcal/mol for AChE; -9.80 to -8.69 kcal/mol for BChE) and 100 ns molecular dynamics simulations supported the binding affinities and indicated the dynamic stability of the enzyme-inhibitor complexes, in agreement with the experimental inhibition data. In silico ADMET profiling indicated favourable drug-likeness and high predicted gastrointestinal absorption and blood-brain barrier permeability (TPSA 41.46-61.69 A2), and structural alert screening returned no PAINS matches. The findings suggest that these derivatives may serve as promising lead compounds for further investigation as potential cholinesterase inhibitors relevant to AD, pending experimental cytotoxicity evaluation.
- MakaleAçık Erişim2027Authorisation of notary publics on real property transactions in relation to the Turkish land registry system based on Cadastre 2014 vision
Çoruhlu, Yakup Emre; Inan, Halil Ibrahim; Çelik, Mehmet Ozgur; Alemdar, Alkan; Yildiz, Okan; Azadi, Hossein
The International Federation of Surveyors (FIG) has globally influenced land administration through its Cadastre 2014 vision and subsequent LADM standards. T & uuml;rkiye has been modernizing its land registry and cadastre system accordingly. The General Directorate of Land Registry and Cadastre (GDLRC) manages approximately 17 million annual transactions, including about 3.4 million conveyancing (long-term averages). To reduce congestion in Land Registry Offices (LROs), notaries were authorized to issue sales contracts in June 2022. This study investigates the effects of this change within the Cadastre 2014/2034 framework in terms of the maturity of the Turkish Land Administration System (LAS) and also by linking the issue to broader debates within land management and governance. A survey of 140 GDLRC experts revealed that notary involvement currently offers limited time and financial benefits to citizens and does not significantly reduce LRO workload. The central factor for this limitation is evaluated to be the maturity of Turkish LAS. On the other hand, the initiative aligns with Cadastre 2014's fifth statement, which advocates public-private collaboration, and therefore it should be further evolved. Within this evolution, administrative/managerial fixes and training programmes for notaries in the short term, management of all internal and external RRRs via LAS as a spatial data infrastructure service in line with LADM standards in the medium term, and betterment of institutional coordination, public responsibility development and capacity building in the long term are proposed for a better eventual land administration and management towards local and national good land governance.
- MakaleYalnız künye2026The Stranger at Home: Lived Experiences of Online Gambling Within the Family in Siirt, Türkiye
Bektaş, Ahmet; Toprak, Adnan; Solmaz, Mustafa; Solmaz, Fatih; Erbaş, Sefa; İliter, Seyfettin; Parlar, Yasin
Online gambling is a growing public health concern whose harms extend to the family, yet its familial consequences remain underexplored in contexts where gambling is illegal and extended-family ties are strong. This study examined how men who gamble online perceive gambling to affect their families in Siirt, Türkiye. Using a qualitative exploratory design, in-person semi-structured interviews with nine married or previously married men who currently or formerly gambled online (recruited via purposive and snowball sampling) were analyzed with a hybrid deductive-inductive, codebook thematic analysis (Fereday & Muir-Cochrane, 2006), informed by the six phases of Braun and Clarke (2006). Four themes were identified: entry into online gambling and the experience of addiction; the internal disintegration of the nuclear family; the household’s economic collapse and drift into crime; and the extended family, stigmatization, and the cultural framing of harm. Participants perceived gambling to erode communication and trust, dispossess the household, and displace men from the provider role, while family responses followed conventional gendered lines-disrupting the material division of roles while reactivating a traditional gender order. Distinctive contextual mechanisms emerged, including the extended family’s collective debt-clearing in exchange for religious oaths and the operation of stigma through kinship networks that threatened collective family honor. Because all participants were gamblers, the findings reflect their perceptions of family impact rather than the direct experiences of affected others. The results extend a predominantly Western evidence base and underscore the need for culturally sensitive, family-inclusive support that works with existing kinship structures while protecting those most burdened.
- MakaleYalnız künye2026Potential of bee products for enrichment of herbal tea: using response surface methodology
Ilyasoğlu, Huri; Arpa Zemzemoğlu, Tuba Eda; Arslan Burnaz, Nesibe
Purpose: There has been an increasing demand for food and beverage products enriched with bee products due to their valuable nutrients and bioactive compounds. This study was designed to assess the feasibility of enriching herbal tea infusions with bee products (honey and bee pollen), and to optimize formulation parameters using response surface methodology (RSM). Methods: The effects of the honey level of bee products (HLBP; 10–90 g/100 g) and the level of non-tea substances (LNTS; 1–5 g/100 mL) on the general acceptability, total glucose and fructose (TGF), total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity of the herbal tea infusions were investigated using RSM. Results: HLBP showed a positive impact on the general acceptability and TGF, but a negative impact on the TPC, while the LNTS had a positive impact on the TGF and TPC. At the optimized enrichment conditions, the response to honey–bee pollen differed markedly between the two matrices: linden tea demonstrated significantly higher functional enhancement (TPC, TFC, and antioxidant activity) compared to the control, whereas sage tea exhibited relatively stable functional values. Sensory responses also differed, with linden formulations showing a significant decrease in general acceptability at lower HLBP levels, while sage formulations maintained relatively stable sensory scores. Conclusion: Overall, the findings indicate that the effects of honey–bee pollen enrichment on herbal tea beverages depend on the tea matrix and require optimization, as increasing functional properties may compromise sensory acceptability, particularly in linden tea, whereas sage tea showed comparatively similar responses to the control.
- MakaleYalnız künye2026A novel neutrosophic estimation method for handling uncertainty in population mean estimation
Yadav, Akhilesh; Yadav, Dharmendra Kumar; Yadav, Subhash Kumar; Zaman, Tolga
Estimating the population mean using auxiliary information has been extensively explored within the classical framework. While point estimators offer simplicity, they provide only a single value without reflecting the uncertainty or variability inherent in real-world data. This shortcoming is particularly critical in high-precision applications and decision-making contexts. Moreover, classical estimators are often vulnerable to the influence of outliers, which can distort results and introduce significant bias. To address these limitations, this study introduces a novel estimator grounded in neutrosophic theory, which is specifically designed to handle imprecise, vague, and incomplete information-conditions frequently encountered in practical sampling scenarios. The proposed neutrosophic estimator incorporates auxiliary information expressed in neutrosophic terms, offering a more flexible and resilient estimation strategy. We derive expressions for the bias and mean square error of the proposed estimator under a first-order approximation. A comprehensive theoretical analysis, supported by simulation studies, confirms that the neutrosophic estimator consistently outperforms classical estimators in terms of accuracy and robustness, especially in uncertain environments. These findings underscore the potential of neutrosophic approaches as powerful alternatives to conventional estimation techniques in modern statistical inference.
- MakaleAçık Erişim2026When the Human Firewall Fails: Techno-Strain as the Hidden Link Between Technostress and Information Security Policy Violations
Demirbağ, Orkun; Kaymak, Halil İbrahim; Alan, Hale; Akdeniz, Ferhan
In today’s dynamic business environment, organizations are increasingly investing in strategies to protect themselves against information system violations. While these technologies offer remarkable benefits—boosting efficiency, productivity, and overall performance—they also bring significant risks, particularly regarding information security breaches. This study delves into the critical connections between technostress, techno-strain, and the violation of information security policies. Our research aims to shed light on how technostress, which is commonly experienced by engineers working in technology-intensive environments within the IT sector, drives information security violations. Importantly, we will also explore how techno-strain mediates this relationship. By focusing on engineers who are consistently engaged with advanced technology, we seek to answer essential questions about their experiences. It is worth noting that the requirements for information security technology can widely vary based on factors such as industry type, organizational structure, departmental roles, and cultural norms. Therefore, this study examines how technostress increases the likelihood of information security policy violations and how techno-strain mediates this relationship. Looking ahead, future research should consider both the broader institutional contexts and the individual characteristics that may shape the relationship between information security violations and technostress. Furthermore, understanding the repercussions of information security violations—stemming from technostress—on a company’s financial health is vital for organizations aiming to safeguard their assets and maintain a competitive edge. Emphasizing these insights can lead to more effective strategies for managing both technology and talent in the workplace.
- MakaleYalnız künye2026Optimizing compton suppression systems: A parametric monte carlo study of NaI scintillator geometry
Kaya, Ali; Çelik, Necati; Kaya, Selim
Compton suppression systems are widely used to enhance gamma-ray spectral quality in applications such as nuclear safeguards and environmental radioactivity measurements. Although optimization of high-purity germanium (HPGe) detectors has been extensively reported, the geometric optimization of secondary sodium iodide [NaI(Tl)] scintillation detectors remains less studied. This work investigates the influence of annular and plug NaI(Tl) detector geometry—length, thickness, and radius—on Compton suppression performance using Monte Carlo simulations. Performance is evaluated in terms of the peak Compton suppression factor (CSFpeak) and total Compton suppression factor (CSFtotal). The results show that CSFpeak and CSFtotal increase with plug length (2–10.2 cm) and annular thickness (1–5.85 cm), with saturation observed beyond approximately 8–10 cm and 4–5 cm, respectively, due to reduced incremental photon absorption. The plug detector radius (3.72–5.1 cm) exhibits a nonlinear effect, with optimal performance achieved at 4.55–4.83 cm, beyond which gains are marginal (<5%). Suboptimal geometries (plug length <6 cm, annular thickness <3 cm, plug radius <4.28 cm) result in 20–60% lower suppression performance, increasing Compton continuum contributions in 662 keV spectra. The optimal configuration—plug length of 8–10 cm, plug radius of 4.55–4.83 cm, and annular thickness of 4–5 cm—achieves more than 90% of maximum CSFpeak and CSFtotal while maintaining a balance between performance and detector volume. These results provide quantitative design guidelines for optimizing NaI(Tl)-based Compton suppression systems for improved gamma-ray spectrometry performance.
- MakaleYalnız künye2026A regulated many-to-one two-sided matching model for emergency teams: a university case study
Şimşek, Ahmet Bahadır; Göktekin, Zekiye; Şimşek, Tuğçe; Tunçer, Dilara
In workplaces, emergency teams comprised of employees play a critical role in minimising damage during emergencies through rapid response. This study introduces a multi-objective employee-team matching model that optimally assigns employees to emergency teams, balancing stakeholder preferences and physical requirements. Using a regulated many-to-one matching framework, this model accounts for employee preferences, decision-maker evaluations, and team-specific physical standards, addressing limitations in current manual matching practices. Tested through a real case study in a university setting, the model demonstrates its efficacy by achieving stable, satisfactory matches that outperform traditional methods. Sensitivity analysis across multiple scenarios further illustrates the model’s adaptability, providing decision-makers with a systematic tool for improving team stability, performance, and flexibility in various emergency preparedness contexts. The main contribution of this study is the reconciliation of preference-based assignments with performance requirements through a tuneable objective function. By jointly considering soft (preferences) and hard (physical) constraints in a single framework, the model allows decision-makers to balance satisfaction and operational feasibility–an integration that existing approaches typically overlook. This approach presents a robust, data-driven solution to enhance organisational resilience and efficiency in critical situations.
- MakaleYayıncıda açık erişim2026Innovation adoption of artificial meat among academic consumers in Turkey
Dişli Bayraktar, Eda; Öztürk, Zeynep; Öztürk Küçük, Hilal
Artificial meat has emerged as a promising sustainable food technology with the potential to mitigate environmental impacts associated with conventional livestock production. However, its societal diffusion largely depends on consumer acceptance and the adoption of this innovation. This study examines academics’ attitudes and consumption intentions toward artificial meat in Turkey by focusing on two innovation adoption tendencies novelty seeking and independent decision making and testing the mediating role of attitude within the Theory of Planned Behavior framework. Data were collected via an online questionnaire distributed through social media and email, yielding 277 valid responses from academics across different regions and faculties. Analyses were conducted using SPSS and Hayes’ PROCESS macro (Model 4) with 5,000 bootstrap samples (95% confidence intervals). Results indicate that attitude toward artificial meat is the strongest predictor of consumption intention. Novelty seeking positively predicts attitude, which in turn increases intention; when attitude is included, the direct effect of novelty seeking on intention becomes non-significant, indicating full mediation. In contrast, independent decision-making negatively predicts attitude and indirectly reduces consumption intention through attitude, also reflecting a full mediation structure. Descriptive findings further show high awareness but low willingness to try artificial meat among academics. Overall, the study highlights the central role of attitude in the adoption of innovative food technologies and suggests that communication strategies should prioritize attitude formation, particularly by addressing skepticism among autonomous decision-makers while engaging novelty-seeking individuals as potential early adopters.
- MakaleAçık Erişim2026An Approach to the Evaluation of Spent Coffee Grounds: Use in Functional Apricot Bar Formulation
Berktaş, Serap; İncegül, Yasemin; Çam, Mustafa
Fruit bars are snack products obtained by mushing fruit, adding sugar, pectin, and other ingredients, and drying the resulting mixture. The aim of this study was to investigate the effects of spent coffee grounds (SCGs), a valuable waste product of the coffee industry, on the physicochemical and bioactive properties of a snack fruit bar enriched with bioactive properties after mushing apricot fruit. Results showed that apricot bars containing 2.5%, 5%, and 7.5% SCGs had higher phenolic, flavonoid, antioxidant activity (ABTS and DPPH), ascorbic acid, and total carotenoid contents compared to the control group. Especially, the fruit bar containing 7.5% SCG stood out in terms of tested bioactive properties. Therefore, it has been determined that the antioxidant and phenolic compounds found in SCGs are also reflected in fruit bars. Furthermore, α-amylase and lipase inhibition values were increased in the enriched fruit bars, and the potential of the developed fruit bars to exhibit antidiabetic and antiobesity properties was improved. Furthermore, the intestinal phase phenolic compound bioaccessibility values of the enriched fruit bars (87.40%–133.3%) were higher than the SCG-free control fruit bar (91.7%). The potential for creating an alternative product with improved nutritional and economic benefits by adding a waste product rich in bioactive compounds such as SCGs to the fruit bar formulation was evaluated. Such products could be considered a new alternative to a functional snack product group rich in bioactive substances that could be incorporated into today's diet.
- MakaleAçık Erişim2026Measuring Perceived Social Support After Disaster: Development and Validation of the Perceived Social Support in Disasters Scale (PSSDS-28)
Oruç, Abdurrahman; Cengiz, Ekrem
Background/Objectives: Measuring perceived social support after disaster remains an unresolved psychometric problem. Most instruments do not jointly capture the source of support (from whom it comes) and its function (how it operates). None has been validated in a disaster-survivor sample with retrospectively framed items. We developed and validated the Perceived Social Support in Disasters Scale (PSSDS-28), a 28-item measure integrating both dimensions. Methods: In Phase 1, a PRISMA 2020-guided systematic review; a two-round Delphi with eight experts, cognitive interviews (n = 12); and a pilot study (N = 150) produced a 31-item form. In Phase 2, face-to-face data were collected from 607 adults affected by the 6 February 2023 Kahramanmaraş earthquakes (Türkiye). Multiple analytic frameworks converged on a five-factor, 28-item structure comprising family–relative, social environment, institutional, emotional, and instrumental–informational support. Results: The correlated five-factor model fit the independent validation sample well (CFI = 0.954, RMSEA = 0.076, and SRMR = 0.072) and outperformed a one-factor alternative (ΔCFI = 0.222). Blocks showed strong internal consistency (ordinal α = 0.852–0.949), composite reliability (0.865–0.950), and adequate test–retest stability (ICC = 0.542–0.909). Scalar measurement invariance held across six groupings, with no meaningful differential item functioning. Convergent and discriminant evidence supported construct validity, and common-method variance was negligible. Institutional (M = 3.29) and instrumental–informational support (M = 2.99) scored lowest—a profile a global score would conceal. Conclusions: The PSSDS-28 provides promising initial psychometric evidence for a multidimensional post-disaster assessment instrument situated at the perceived–received interface, a target that general-purpose scales are not designed to capture. Criterion-related validity, cross-cultural validity, and cross-disaster replicability remain to be demonstrated.
- MakaleAçık Erişim2026Non-Alcoholic Beer Production Using Ohmic Heating-Assisted Vacuum Distillation Method
Akdoğan, Arda; Baltacı, Cemalettin
In this study, non-alcoholic beer was produced with an ohmic heating-assisted vacuum distillation system (ODVD) and vacuum rotary distillation (VDD). The processes were conducted at three vacuum pressure levels (100, 150, and 200 mbar). Corresponding operating temperatures were 50, 58, and 67°C for the VDD system, while the ODVD system operated at in-situ-ohmic heating without an external heating medium. In ODVD, three voltage gradients (15, 20, and 25 V/cm) were applied. The two systems were compared in terms of processing time, energy efficiency, aroma profile, antioxidant capacity (ABTS, DPPH, TAC, FRAP), total phenolic (TPC) and total flavonoid content (TFC), vicinal diketone (VDK), pH, color, and bitterness value. The ODVD system showed significantly shorter processing times and energy efficiency than VDD. While the pH values of dealcoholized beer increased slightly compared to the original beer, color and bitterness values were higher in VDD samples. Aroma compounds such as ethyl acetate, isoamyl acetate, and ethyl caproate were lost during both processes. Overall, the findings demonstrate that ODVD is a promising and energy-efficient alternative for the production of non-alcoholic beer, with comparable product quality to VDD.
- MakaleYalnız künye2026Effects of mandatory schooling expansion on upward educational mobility among women in Türkiye
De, Prabal K.; Tümay, Muhammed
Using data from the Turkish Demographic Health Survey and a Regression Discontinuity Design, we estimate the effects of an exogenous increase in mandatory schooling on educational mobility among women in Türkiye. Our findings indicate that compulsory schooling may increase upward educational mobility where women attend education levels higher than their parents, particularly mothers. Additionally, we find such effects not only for the level at which schooling became compulsory but also at higher levels, showing a magnification of the initial impact.
- Kitap BölümüYalnız künye2026Remuneration and Duties in Ottoman Waqfs: The Case of Hafsa Sultan Waqf (Sixteenth to Eighteenth Centuries)
Karademir, Ayşenur
Ottoman charitable endowments, known as waqfs, were established by the sultan, his family, and the members of the ruling class, serving as primary employment institutions during the classical period. These waqfs offered a broad range of social services through various public structures, thereby employing a vast number of individuals with diverse skills and educational backgrounds across the empire. This study focuses specifically on wage determination within the Manisa Waqf of Hafsa Sultan, the mother of the renowned Sultan Süleyman the Magnificent, established in 1523. The waqf complex outlined in the endowment deed, comprised a mosque, a primary school, a madrasa, a dervish lodge (hankah) and a soup-kitchen (imaret). Subsequently, it expanded to include a hospital (dârüşşifâ) and a Turkish bath (hamam). Starting with an analysis of the endowment deed, this study further examines the seventeenth and eighteenth-century accounting books retrieved from the Ottoman Archives. These records reveal various aspects, including the waqf’s expansion, the increasing employment individuals, changes in daily wages over time, in-kind payments, challenges encountered during inflationary periods, and practical measures implemented to mitigate these issues.
- MakaleAçık Erişim2026Drivers’ Perceptions of Vertical Traffic Signs and Their Implications for Road Safety: Evidence from a Field Survey
Durmus, Tahsin; Coruh, Emine
Accurate perception and interpretation of the road environment are essential for safe driving. Vertical traffic signs play a key role in communicating warnings, regulations, and guidance to road users, thereby supporting safe and efficient traffic flow. However, their effectiveness depends not only on proper design and placement but also on how accurately and promptly they are perceived by drivers, which may be influenced by factors such as attention, cognitive workload, physical and mental condition, and fatigue. This study evaluates the contribution of selected vertical traffic signs to driving safety along a designated roadway section in Şanlıurfa, Türkiye. Face-to-face surveys were conducted with 480 active road users. Drivers’ knowledge, compliance behavior, safe route preferences, perceived visibility, and the effects of missing or inadequate signage were analyzed. The results indicate that driving exposure, education level, and experience significantly influence knowledge and perception of traffic signs, while compliance shows limited variation. These findings suggest that knowledge alone does not necessarily translate into behavioral compliance and underscore the importance of considering both driver-related factors and infrastructure characteristics in traffic safety strategies. The study provides practical insights for improving the visibility, placement, and overall effectiveness of vertical traffic signs in rapidly developing urban environments.