Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(85)
- Serdar, Osman(72)
- Güler, Ömer(68)
- Akkurt, Nevzat(61)
- Baskonus, Haci Mehmet(54)
- Alataş, Mevlüt(53)
- Paksoy, Mehmet Yavuz(53)
- Yucesan, Melih(53)
- Bulut, Hasan(51)
- Tekin, H.O.(51)
- ALMisned, Ghada(48)
- Yildirim, Numan(48)
- Benzer, Fulya(47)
- Kocabaş, Mehmet(45)
- Yildirim, Nuran Cikcikoglu(44)
- Kutlu, Banu(41)
- Ince, Muharrem(39)
- Zengin, Gokhan(39)
- Batan, Nevzat(37)
- Utku, Anıl(35)
- Celik, Erkan(33)
- Topal, Murat(32)
- Ezer, Tülay(31)
- Tanyol, Mehtap(31)
- Can, Erkan(30)
- Sulaiman, Tukur Abdulkadir(29)
- Aslan, Naim(28)
- Özkul, İskender(28)
- Aslan, Alper(27)
- Cakilcioglu, Ugur(27)
- Erguven, Gokhan Onder(27)
- Kutluyer, Filiz(27)
- Kök, Mediha(27)
- Ates, Mehmet(26)
- Erten, Fusun(26)
- Kahraman, Gökhan(26)
- Onat, Onur(26)
- Dal, Nursel Alp(25)
- Danabas, Durali(25)
- Say, Yakup(25)
Yayınlar
- MakaleAçık Erişim2025Scopus SJRQ4Biochemical Responses of Zebra Mussel Dreissena polymorpha (Pallas, 1771) (Bivalvia: Dreissenidae) against Cadmium
Alişer, Ahmet Bedrettin; Aydin, Rahmi; Serdar, Osman
The biochemical reactions of zebra mussels Dreissena polymorpha (Pallas, 1771) exposed to different concentrations of cadmium (Cd) in the acute period (24 and 96 hours after treatment) were studied. Four variants of experimental treatment were examined: 0 μg/L Cd (control), 10 μg/L Cd, 20 μg/L Cd and 40 μg/L Cd. Changes in the enzyme activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione (GSH) and thiobarbituric acid reactive substances (TBARS) levels were determined using ELISA kits. In D. polymorpha exposed to the three experimental concentrations of cadmium, there was a statistically significant decrease (p<0.05) in SOD enzyme activity with increasing concentration or exposure times. No change was observed in CAT enzyme activity with increasing concentrations. The decrease in the activity depending on the exposure times was not statistically significant (p>0.05). As for GPx enzyme activity, a significant increase was detected after Cd application compared to the control (p<0.05). TBARS and GSH levels increased significantly in all Cd application groups compared to the control at 24 and 96 hours. The effects of different concentrations of Cd on D. polymorpha in the acute period were associated with changes in SOD, CAT, GPx enzyme activities. TBARS and GSH levels were effective parameters in determining the oxidative damage caused by Cd.
- MakaleAçık Erişim2025Scopus SJRQ1Self-Compassion Around the World: Measurement Invariance of the Short Form of the Self-Compassion Scale (SCS-SF) Across 65 Nations, 40 Languages, Gender Identities, and Age Groups
Swami, Viren; Tran, Ulrich S.; Voracek, Martin; Aavik, Toivo; Ranjbar, Hamed Abdollahpour; Adebayo, Sulaiman Olanrewaju; Afhami, Reza; Ahmed, Oli; Aimé, Annie; Akel, Marwan
Objectives: The 12-item Self-Compassion Scale–Short Form (SCS–SF) is a widely used instrument for the assessment of self-compassion. To date, there have been few examinations of this instrument’s psychometric properties, particularly across nations and languages. Therefore, we used data from the Body Image in Nature Survey (BINS) to assess measurement invariance of the SCS–SF across nations, languages, gender identities, and age groups. Methods: Participants (N = 56,968) from 65 nations completed the SCS–SF in 40 languages. Using these data, we tested various hypothesised models of the SCS–SF in the total sample and, using multi-group confirmatory factor analysis, tested for invariance of the optimal model across national groups, languages, gender identities, and age groups. Results: In the total dataset, we found that an 11-item, 2-factor model (i.e., SCS-11) provided best fit to the data, with the two factors tapping distinct constructs of compassionate and uncompassionate self-responding. The SCS-11 was found to be partially scalar invariant across national groups and languages, and fully scalar invariant across gender identities and age groups. There was wide variation in latent means for the two factors, particularly across national groups and languages. Further analyses showed negligible associations between the two factors and sociodemographic variables, including marital status, financial security, and urbanicity. Conclusions: Our results suggest that it may be possible to derive a stable 2-factor model of the SCS–SF for use in cross-cultural research, but also highlight the likelihood of cross-national and cross-linguistic variations in the way that self-compassion is understood.
AtıfScopus21OpenAlex23
İncele - MakaleAçık Erişim2025Scopus SJRQ1New comparative approach to multi-level thresholding: chaotically initialized adaptive meta-heuristic optimization methods
Serbet, Fatmanur; Kaya, Turgay
One method aimed at enhancing the performance of meta-heuristic optimization techniques is the incorporation of chaotic systems. Instead of irregular distributions in the search space, chaotic distributions are employed in the initial population of optimization algorithms to improve the efficiency of the search process. This approach enables search agents distributed in a chaotic manner to effectively explore the search space. The initial populations of both the well-established PSO algorithm and the enhanced WSO algorithm, which incorporates advanced search techniques, are distributed in the search space according to the characteristics of Logistic, Chebyshev, Circle, Sine, and Piecewise chaotic maps in this study. The original PSO and WSO algorithms, as well as the resulting chaotically initialized PSO and chaotically initialized WSO algorithms, were tested using 23 benchmark functions. Subsequently, the Otsu method was integrated into the tested optimization algorithms to obtain multi-level thresholding values. These algorithms were applied to five different test images with a manually determined number of thresholds. The results obtained were presented in the study and evaluated using statistical tests.
AtıfScopus13OpenAlex12İncele - MakaleYalnız künye2025Scopus SJRQ2Influence of putrescine treatment on quality and biochemical characteristics of hawthorn fruit during cold storage
Kucuker, Emine; Aglar, Erdal; Ogurlu, Ferhat; Ozcengiz, Ceyda Kizgin; Sumbul, Ahmet
Post-harvest quality and product losses are significant for hawthorn fruits, which have a short shelf life and limited marketing period. This study examined the effects of putrescine applications to maintain the physical quality and biochemical contents of hawthorn fruits and extend their shelf life during cold storage. Hawthorn fruits were treated with different doses of putrescine (0.5 mM, 1 mM, and 2 mM) and stored for 30 days. The effects of putrescine applications on weight loss, decay rate, fruit firmness, soluble solids content (SSC), titratable acidity (TA), total phenolic content, total antioxidant content, individual phenolic compounds, and organic acid properties were evaluated on the 10th, 20th, and 30th days of storage. At the end of the cold storage, the lowest weight loss and decay rate and the highest fruit firmness were observed in the 1 mM putrescine application. In general, putrescine applications maintained total phenolic content, with the increase in total antioxidant content continuing until the 20th day. The highest increase in total phenolic and total antioxidant content was observed with the 1 mM putrescine application. Succinic acid, a decreasing phenolic compound, was identified as the primary acid in hawthorn fruits throughout storage. The storage period and putrescine application dose caused increases and decreases in phenolic compounds. Gallic acid was determined as the highest phenolic compound in hawthorn fruit. The 1 mM putrescine application was found to be the most effective application for organic acids and phenolic compounds. Putrescine, one of the main polyamines, was shown to be an effective method for maintaining the quality and shelf life of hawthorn fruit. Additionally, this study is expected to serve as a foundation for future similar studies.
AtıfScopus4WoS4OpenAlex3İncele - MakaleAçık Erişim2025Scopus SJRQ2In vitro and in silico analyses of cytoprotective, antigenotoxic and antimutagenic potential of Phlomis pungens var. hirta extracts against oxidative damage
Wild Korkmaz, Franziska Johanna; Dogan, Serap; Yilmaz Kardas, Begumhan; Diken, Mehmet Emin; Karasakal, Ömer Faruk; Acar, Mikail
Phlomis pungens var. hirta Velen has been used by local people for food and to treat diseases but there are limited number of investigations in literature about this plant and cyto/genotoxicity analyses have not been done before. Hence, this study aimed to find out cell-protective activity and DNA damage prevention ability of P. pungens var. hirta by MTS, micronucleus, 8-OHdG and somatic mutation recombination tests (SMART). In addition, liquid chromatography, antioxidant/antibacterial activity analyses and in silico biological activity profiling were performed. The healthy lymphocyte cell growth was supported by the plant extracts and none of the extracts was genotoxic. 8-OHdG test showed that methanolic and ethanolic extracts of the plant were able to decrease the oxidative DNA damage. According to the SMART results, extracts could suppress the genotoxic effects of an important environmental pollutant, H2O2. Rutin hydrate and quercetin were found in highest concentrations and the extracts could be characterized as antioxidant/antibacterial. In silico analysis also showed that the major compounds of this plant can be considered as chemoprotective. This is the first study that assessed the cell protective activity and DNA damage prevention capacity of P. pungens var. hirta, which should be regarded as a potential source for nutritional supplements and therapeutic products.
AtıfOpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ2Tungsten carbide-based shape memory biopolymer nanocomposites as a promising new gamma radiation shielding material
Pekdemir, Mustafa Ersin; Yılmaz, Demet; Selçuk Pekdemir, Sibel; Taşgın, Yahya; Ekmen, Busenur
In this study, structural, thermal and radiation shielding properties of Polylactic acid (PLA)/polyhydroxyalkanoates (PHAs)/Tungsten Carbide (WC) nanocomposite films were investigated. PHA/PLA/WC composite films were prepared by using different amounts of WC (5%, 10%, 18%, 28%). Characterization of the composite films was carried out by Attenuated Total Reflection Infrared Spectroscopy (ATR-IR), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The linear and mass attenuation coefficients (LAC and MAC), mean free path (MFP), Half-Value Layer (HVL), Tenth Value Layer (TVL), effective atomic numbers (Zeff), and effective electron densities (Nel) of the synthesized composite films were experimentally measured from 53.16 to 383.85 keV. Also, the neutron equivalent dose rates for the prepared film samples were determined. Exposure buildup factor (EBF) and fast neutron removal cross section (ΣR) were theoretically calculated. The particle shielding characteristics of the composite films were evaluated. The MFP values at 356.01 keV are 8.211 cm, 7.772 cm, 7.360 cm, 6.710 cm and 5.942 cm for PLA/PHA, PLA/PHA/5%WC, PLA/PHA/10%WC, PLA/PHA/18%WC and PLA/PHA/28%WC, respectively. It was observed that an increase in WC content enhances the gamma shielding abilities in PHA/PLA films. The results revealed that PHA/PLA/WC composite materials can be used as protective coating materials.
AtıfScopus5WoS5OpenAlex6İncele - MakaleAçık Erişim2025Scopus SJRQ1A novel post-processing approach for improving minimum nonlinearity in S-boxes: A case study based on 2D hyper chaotic Schaffer transformation map
Aydın, Yılmaz; Garipcan, Ali Murat; Özkaynak, Fatih
Substitution boxes (s-boxes), providing nonlinearity in block cipher algorithms, constitute a fundamental security layer against linear and differential cryptanalysis attacks. In this study, an innovative s-box generation method is proposed by integrating a 2D hyper-chaotic Schaffer map (SM) with biomolecular DNA-based encoding techniques. Furthermore, to enhance the security of s-box structures, a novel post-processing algorithm is developed, aiming to simultaneously optimize both the average (NLavg) and minimum (NLmin) nonlinearity levels by targeting linear components. Unlike traditional meta-heuristic methods, the proposed algorithm avoids random exploration across large search spaces, instead identifying dominant linear components through Walsh spectrum analysis and applying targeted permutation operations to suppress their effects. This strategy not only increases the NLavg value but also balances the contribution of each Boolean function to security, thereby establishing a homogeneous and consistent security structure across all input–output combinations. Comparative experimental analyses with existing methods demonstrate that the proposed approach outperforms prior techniques in terms of both cryptographic security metrics and computational efficiency. In this respect, the study presents an advanced s-box design framework, characterized by high nonlinearity and a balanced spectral distribution, suitable for integration into modern block cipher systems.
AtıfScopus12WoS13OpenAlex13İncele - MakaleAçık Erişim2025Scopus SJRQ2Associations Between Pulmonary Function and Muscle Strength in Turkish National Karate Athletes
Tokgoz, Gurkan; Cinarli, Sena; Akyol, Betül; Aygoren, Caner; Beykumul, Aysegul; Larsen, Malte Nejst; Krustrup, Peter; França, Cíntia; Gouveia, Élvio Rúbio; Cinarli, Fahri Safa
Background: Respiratory efficiency is considered important in karate due to its role in sustaining muscular performance during high-intensity actions. This study examined the association between pulmonary function and isometric muscle strength in national-level karate athletes. Methods: A total of 23 elite karate athletes (mean age: 23.0 ± 2.3 (mean ± SD) years) participated in the study. Pulmonary function was assessed using a digital spirometer, while isometric handgrip, lower back, and leg strength were measured using a dynamometer. The correlation between pulmonary function and isometric strength was analyzed, and linear regression was employed to examine the predictive capacity of pulmonary parameters for muscle strength. Results: The results revealed significant correlations, ranging from large to very large, between pulmonary function and isometric muscle strength, with correlation coefficients from 0.639 to 0.812 (p < 0.01). Pulmonary function was strongly associated with isometric strength, accounting for 27% to 67% of the variance (p < 0.05). Multiple regression analysis revealed that pulmonary function parameters accounted for 71% of the variance in handgrip strength, 47% in leg strength, and 71% in back strength (p < 0.05). Conclusions: These findings highlight the strong associations between pulmonary function and isometric muscle strength in elite karate athletes. The results emphasize the importance of pulmonary health and respiratory muscle function in athletic performance, particularly for sports requiring high-intensity, dynamic movements like karate. Future longitudinal studies are needed to explore the mechanisms underlying the association and potential implications, and for training and performance optimization.
- MakaleAçık Erişim2025Scopus SJRQ1Examining the trade-off between structural, mechanical properties and shielding performance of Pr2O3-enhanced 316L stainless steel
Yayla, Nihal; Albayrak, M.Gökhan; Güler, Ömer; Baykal, Duygu Sen; Alkarrani, Hessa; ALMisned, Ghada; Zakaly, Hesham M.H.; Tekin, H.O.
This study explores the structural, mechanical, and radiation shielding properties of 316L stainless steel composites reinforced with varying weight percentages of Pr2O3. The aim is to enhance radiation attenuation capabilities while maintaining structural integrity for nuclear applications. The composites were fabricated using the mechanical alloying method, followed by detailed characterization through X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Key radiation shielding parameters, including mass attenuation coefficient, linear attenuation coefficient, half-value layer, and effective atomic number, and transmission factor values were analysed using theoretical and computational models. Additionally, elastic modulus calculations were performed to assess mechanical properties. The results indicate that incorporating Pr2O3 significantly enhances shielding performance. The 316L-SS%20Pr2O3 composite exhibited the highest mass and linear attenuation coefficients values, with a notable reduction in half value layer values compared to the unreinforced 316L stainless steel. At lower photon energies, effective atomic number improved by 39.3 % for the 316L-SS%20Pr2O3 sample, while neutron shielding efficiency also increased. However, the elastic modulus decreased with higher Pr2O3 content, reflecting a trade-off between mechanical stiffness and radiation shielding efficiency. The findings demonstrate that 316L-SS%20Pr2O3 is a promising material for applications requiring superior radiation shielding, particularly in environments where mechanical load is secondary.
AtıfScopus8OpenAlex8İncele - MakaleAçık Erişim2025Scopus SJRQ1Quality preservation of jujube fruit during cold storage: effect of maturity stage and modified atmosphere packaging
Gun, Sefa; Ozturk, Burhan; Aglar, Erdal; Karakaya, Orhan
Bacground: This study, which examines the effect between the maturity stage and modified atmosphere packaging (MAP) in order to prevent post-harvest quality losses and extend the storage life of jujube (Ziziphus jujuba Mill.) fruit, offers an important contribution to supply chain management. The fruits harvested at different maturity stages were stored at 0 ± 0.5 °C and 90 ± 5 RH in MAP and control conditions for 42 d and changes in quality, physiological and biochemical parameters were evaluated. Results: The lowest value was recorded in the early maturity (M-1) + MAP group for weight loss. Respiration rate decreased with advancing maturity, MAP treatments slowed down this process. Oxygen consumption and CO₂ production changed according to maturity level, MAP applications balanced gas exchange. MAP maintained brightness and color intensity of the fruit better. It also slowed down the firmness loss. The highest soluble solid content (SSC) was determined in the late maturity (M-3) + MAP group. Titratable acidity (TA) showed lower increase in MAP treatments. MAP significantly reduced the losses of vitamin C. Total phenolic, total flavonoids and antioxidant activity decreased during storage, while MAP treatments limited this decrease. Conclusions: The findings revealed that packaging jujube fruit with MAP, especially in early and mid-maturity stages, better preserves its quality parameters. Accordingly, MAP applications appropriate to the ripeness stage are recommended as an effective strategy to extend the fresh consumption period of jujube fruit and preserve its bioactive compounds.
AtıfScopus6WoS5OpenAlex5
İncele - MakaleAçık Erişim2025Scopus SJRQ2Innovative image encryption approach based on bitwise XOR high nonlinear S-boxes and random permutation
Artuğer, Fırat
With today's developing technologies, the need for new image encryption algorithms to encrypt images is inevitable. In this study, an innovative image encryption algorithm is proposed. The proposed algorithm first XORs each layer of the image with a unique and strong new key. Each layer is then subjected to a random permutation process. Each of the encrypted layers obtained here is finally passed through a new s-box structure with a high nonlinearity value. After these processes, all layers are combined to obtain an encrypted image. Thus, XOR and s-box confusion meet the criteria, while random permutation meets the diffusion criteria. In this study, both key and s-box structures were originally obtained with a chaotic Gaussian map. The outputs of the chaotic map were converted into bit sequences and five different sequences with a length of 1 million were obtained. All these arrays have successfully passed all NIST SP 800-22 tests. On the other hand, the proposed s-box structures surpassed many studies with nonlinearity values of 108, 108.5, and 108.75. The images were successfully encrypted with the proposed algorithm, and the encrypted images successfully completed tests such as NPCR-UACI, information entropy, histogram analysis, and correlation analysis. It is thought that this study will make many contributions to the fields of s-box development, random number generation, and image encryption.
AtıfScopus3OpenAlex3İncele - MakaleAçık Erişim2025Scopus SJRQ2A Novel CuAlMnFe/CeO2 Composite Alloy: Investigating the Wear and Corrosion Features
Doğan, Fatih; Duru, Erhan
Shape memory alloys (SMAs) are known for their exceptional mechanical properties, particularly their superior wear resistance compared to conventional alloys with similar surface hardness. Rare earth oxides are often used as additives to further improve these characteristics. This study investigates the effects of different CeO2 (cerium dioxide) concentrations (0.01 wt.%, 0.1 wt.%, 0.5 wt.%, and 1.0 wt.%) on the properties of CuAlMnFe alloys produced via powder metallurgy (PM). Various analyses were performed, including scanning electron microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-ray diffraction (XRD), as well as hardness, wear, and corrosion tests. The increase in wear rate is closely related to the formation of precipitates from CeO2 addition. Improvements in wear resistance and hardness are attributed to the effects of grain refinement and solid solution strengthening due to CeO2. Specifically, the wear rate increased from 1.5 × 10−3 mm3/(Nm) to 3.4 × 10−3 mm3/(Nm) with higher CeO2 content. Additionally, the friction coefficient of the CuAlMnFe alloy was reduced with CeO2 addition, indicating enhanced frictional properties. The optimal CeO2 concentration of 0.5% was found to improve grain uniformity, resulting in better wear resistance. Incorporating CeO2 particles into CuAlMnFe alloy enhances hardness and reduces wear rate when used in appropriate amounts. Additionally, it exhibits superior corrosion resistance, as evidenced by a positive shift in corrosion potential in Tafel measurements in solutions and a decrease in corrosion current density. The C0.5 specimen showed the highest corrosion potential (Ecorr, −588 V) and the lowest corrosion current density (icorr, 6.17 μA/cm2) during electrochemical corrosion in 3.5 wt.% NaCl solution.
AtıfScopus2WoS2OpenAlex2İncele - MakaleAçık Erişim2024Williams Sendromu Tanısı Almış Çocuğa Sahip Ebeveynlerin Anksiyete Düzeylerine İlişkin Araştırma
Erkul, Ercem; Coşkun, Hakan; Güntay, Amine; Güleç, Yakuphan; Eviz, Ömer; Çıvak, Ümit; Küçükdemir, Ayşe Korkmazyürek
Williams-Beuren Sendromu (WS), kromozom çiftlerinden yedinci çiftin silinmesi sonucunda ortaya çıkan çoklu sistemik bir kromozom bozukluğudur. WS tanısı almış çocuklar özel gereksinimli bireyler olduğundan dolayı çocukların ebeveynlerine daima bağımlı olması, sosyal hayatlarının sınırlı olması vb. etkenler nedeniyle ebeveynlerde anksiyeteye sebep olabilmektedir. Bu bağlamda çalışmanın amacı Türkiye’de WS tanısı almış çocuğa sahip olan ebeveynlerin yaşadıkları güçlüklerden ötürü oluşan anksiyete düzeylerinin araştırılmasıdır. Tarama modeliyle gerçekleştirilen araştırmaya WS tanısı almış çocuğa sahip Türkiye Williams Sendromlular Derneği (TWSD)’ne kayıtlı 118 ebeveyn katılmıştır. Veriler, araştırmacılar tarafından oluşturulan sosyo-demografik sorular ile Beck ve diğerleri (1988) tarafından geliştirilen Beck Anksiyete Envanteri (BAE) aracılığıyla toplanmıştır. Verilerin analizinde ise, veriler normal dağılımdan geldiği için parametrik testlerden Pearson korelasyon testi, Bağımsız Örneklem t Testi ve Tek Yönlü Varyans Analizi kullanılmıştır. Elde edilen bulgular neticesinde ebeveynlerin çalışma durumunun, sahip olduğu çocuk sayısının ve son olarak kendileri olmadığında çocuğun bakımını kimin üstleneceği konusunda yaşadıkları kaygının anksiyete düzeylerini anlamlı bir şekilde etkilediği gözlemlenmiştir. WS tanısı almış çocuğa sahip ebeveynlerle daha yoğun ve etkin bir biçimde çalışılması ve WS tanısı almış çocuklara yönelik mikro, mezzo ve makro sosyal hizmet uygulamaları geliştirilmesi önerilmektedir.
AtıfOpenAlex1
İncele - MakaleAçık Erişim2024Palu’da yaşayan bir gelenek: bâtıl-nâme duası ile sihir bozma
Selçuk, Bahır; Demirbağ, Abdulsamet
Geçmişten bugüne uzanan, üzerine sıkça tartışmalar yapılan büyü ve büyü bozma inanışına hemen her toplumda rastlamak mümkündür. Türk toplumunda büyü bozmak için uygulanan yöntemlerden biri de dua etmektir. Bu duaların hem yazılı metinlerde hem de sözlü kültür geleneğinde hayli örneklerinin olduğu bilinmektedir. Özellikle geçmişten günümüze uzanan büyü bozma dualarından biri de bâtıl-nâme adı verilen Türkçe duadır. Farklı varyantları tespit edilen bu dua ve dua ile ilgili ritüelin hâlâ canlılığını koruduğu bölgelerden biri de Elazığ’ın Palu ilçesidir. Yörede batalama/batâl-nâme olarak bilinen bâtıl-nâme duasının bir nüshası Şeyh İbrahim Efendi-zâde Ali Efendi tarafından kaleme alınmıştır. Hemen her türlü büyü çeşidini etkisiz kılmak için okunan bu duanın nisan yağmuru suyuna okunup içilmesi geleneği kültür açısından önem arz etmektedir. Dolayısıyla bu çalışma söz konusu geleneğin gün yüzüne çıkarılması ve kaybolmaması adına yapılmıştır. Bu çalışmada bâtıl-nâme duasının çeviri yazılı metni verilecek, bu metnin genel özellikleri sıralanarak Palu yöresinde devam eden bu dua ile sihir bozma geleneği üzerinde durulacaktır.
AtıfTR Dizin1İncele - MakaleAçık Erişim2024Çok Değişkenli İstatistiksel Yöntemler ile Yeşil Gelecek ve Refah Arasındaki İlişkinin İncelenmesi
Veysikarani, Dilek; Akdağ, Nuran
Yeşil Gelecek Endeksi ve Legatum Refah Endeksi, toplumsal ve ekonomik kalkınmanın yanı sıra çevresel sürdürülebilirliği değerlendirmek için önemli araçlar olarak kullanılmaktadır. Bu endeksler, ülkelerin ekonomik büyüme hedefleri ve çevresel faktörler arasında denge kurmalarına olanak sunmaktadır. Çalışmada yeşil gelecek ve refah arasındaki ilişkinin değerlendirilmesi amaçlanmaktadır. Yeşil Gelecek Endeksi ve Legatum Refah Endeksi arasında var olduğu öngörülen ilişki kanonik korelasyon analizi ile değerlendirilmiştir. Kanonik korelasyon analizi, iki veya daha çok sayıda değişken grubu arasındaki en yüksek ilişkiyi hesaplamak için kullanılan bir istatistiksel yöntemdir. Çalışmanın örneklem grubunu OECD ülkeleri oluştururken veri seti 2023 yılına ait göstergelerdir. Elde edilen bulgular doğrultusunda, yeşil gelecek ve refah arasında istatistiksel olarak anlamlı ve negatif yönlü bir ilişki olduğu saptanmıştır. Bu sonuç, Yeşil Gelecek Endeksinin yani çevresel sürdürülebilirlik ölçütlerinin, refahı yansıtan açık ekonomiler alt boyutu ile arasında ters yönlü bir bağlantı taşıdığını göstermektedir. Bu nedenle sonuçlar, yeşil geleceğin hedeflerini ve ekonomik büyümeyi dengede tutma zorluğunu işaret etmektedir. Çalışmaya özgün değer katan ve onu bu alanda önemli kılan faktör, daha önce literatürde bu endeksler için aynı anda kullanılmamış olan istatistiksel analiz yönteminin kullanılmasıdır ve bu doğrultuda elde edilen sonuçlar ile geleceğe yönelik yeşil politika çerçevesinin çizilebilir hale gelmesidir.
AtıfOpenAlex2TR Dizin3İncele - MakaleAçık Erişim2024Terbiyumun Pontastacus leptodactylus’ta ki Oksidatif Stres ve Antioksidan Yanıtlarının Belirlenmesi
Serdar, Osman; Aydın, Ayşe Nur
Terbiyum (Tb), su ortamında yüksek konsantrasyonlarda bulunduğunda sucul organizmalar için toksik hale gelebilen nadir toprak elementi (NTE)’dir. Tatlı su ekosistemindeki Tb toksisitesinin meydana getirdiği oksidatif stres sonuçlarıyla ilgili hala yeterince çalışmalar mevcut değildir. Bu çalışma ile Tb'nin oksidatif stres sonuçlarını değerlendirmek için tatlı su canlısı olan Pontastacus leptodactylus kullanılmıştır. Bu organizmada, 1, 5 ve 25 mg/L konsantrasyonlardaki Tb'nin 24 ve 96. saatte meydana getirdiği oksidatif stres ve antioksidan değişimleri süperoksit dismutaz (SOD), glutatyon peroksidaz (GSH-Px), katalaz (CAT) enzim aktiviteleri ile Tiyobarbitürik asit (TBARS) ve redükte glutatyon (GSH) seviyeleri belirlenmiştir. Sonuçlar ELISA kitleri kullanılarak tespit edilmiştir. Biyobelirteç analizlerin istatatistiksel değerlendirilmesinde SPSS 24.0 paket program tek-yönlü ANOVA (Duncan 0,05) testi kullanılmıştır. Kontrol grubu ile karşılaştırıldığında SOD aktivitesinde önemli bir değişim gözlemlenmezken (p>0,05) CAT ve GPx aktivitelerinde anlamlı azalmalar (p<0,05) gözlemlenmiştir; GSH ve TBARS seviyelerinde ise anlamlı (p<0,05) artışlar gözlemlenmiştir. Çalışma verileri dikkate alındığında canlı organizma vücuduna nüfuz eden Tb ksenobiyotiğinin organizma da oksidatif strese neden olduğu düşünülmektedir.
AtıfOpenAlex4TR Dizin3İncele - MakaleAçık Erişim2024An Investigation on Faulty Renovation Practice in Hotel Facility Management: Adıyaman Grand Isias Hotel (GIO) Example
Ceylan, Ebru Nalan
The facility management approach in hotels differs between organizations. Different issues need to be taken into account in the design, construction, operation and renovation of tourism accommodation facilities. As a result of the earthquake disaster that took place on February 6, 2023, it was seen how unprepared we were in terms of safe buildings. The loss of life at GIO in Adıyaman, which initially creates the perception that it is new to its customers, prioritizes drawing attention to this issue in terms of hotels. The aim of the study is to make suggestions to the project management process of medium-sized hotels that need renovation and are mostly operated by the owners, and to raise awareness in determining their priorities. The method of the study is case study. Within this study, the significance of renovation as a hotel facility management tool will be discussed through literature research, and the improper practices at GIO will be examined by conducting a case study. Information was obtained through the hotel's web page, by scanning the news published on the internet and by examining the report prepared by the academicians who were assigned as experts in the case process. The fact that the building's license projects could not be accessed and the business owner could not be contacted limited the case study. It has been suggested that facility management expertise should be used in the renovation management of medium-sized hotels, which are mostly managed by the owners.
- MakaleAçık Erişim2024Evaluation of Susurluk Basin Flows Using Trend Analysis Methods
Acar, Ramazan
Trend analysis of annual average flow data is very important for better water resources management, planning and operation. In this study, annual average flow data from M. Kemal Paşa, Orhaneli and Simav flow observation stations located in Susurluk Basin were tested with Mann-Kendall, Spearman Rho and Şen's Innovative trend methods and the trends of the stations were tried to be determined and the performances of these methods were evaluated. In addition, annual average flow data were submitted to regression analysis, yielding equation sets. For each station, the annual and 100-year changes in m3/s were determined. Analyzing the results, only Şen's Innovative Trend Method analysis found a general decreasing trend for all 3 stations. In the analyses of Mann-Kendall and Spearman’s Rho methods, no trend was detected in all 3 stations. In addition, 100-year percentage change values of the data of 3 stations were determined. According to these values, it is concluded that there will be a significant decrease in the flow values of the stations in the future.
AtıfOpenAlex11TR Dizin4İncele - MakaleYalnız künye2024A Comparative Study for Privacy-Aware Recommendation Systems
Utku, Anıl; Canbay, Yavuz
Recommendation systems are sophisticated processes for information filtering designed to offer users tailored recommendations based on their preferences and interests. Users need help to choose between options as the amount of information on the web grows. As a result, it is critical to deliver personalized recommendations to consumers to promote user loyalty and satisfaction. Because recommender systems use sensitive user information such as ratings, comments, likes, and dislikes, this information can be leaked if no privacy measures are taken. As a result, we presented a comparison of privacy-aware recommendation systems in this paper. Two experiments are carried out. In the first experiment, we examined collaborative filtering algorithms on perturbed ratings and then compared hybrid, collaborative, and content-based algorithms on perturbed ratings in the second experiment. According to the results, the Singular Value Decomposition++ (SVDpp) algorithm presented the lowest Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) values for epsilon 100, with 0.8889 and 0.6822, respectively. Furthermore, for epsilon 100, the hybrid filtering technique had the lowest RMSE and MAE rates of 0.90664 and 0.69813, respectively.
AtıfOpenAlex2TR Dizin1İncele - MakaleAçık Erişim2024Convmixer ve SDD Kullanılarak DEHB Hastalığının EEG Sinyalleri ile Otomatik Olarak Tespit Edilmesi
Sengur, Abdulkadir; Üzen, Hüseyin; Özçelik, Salih Taha Alperen; Uyanik, Hakan; Karakaş, Buğra
DEHB, çocuklarda dikkat eksikliği, davranış problemleri, eğitimle ilgili sorunlar ve düşük özgüven gibi problemler oluşturabilir. Bu çalışma, Dikkat Eksikliği Hiperaktivite Bozukluğu (DEHB) teşhisini elektroensefalografi (EEG) sinyalleriyle değerlendirmeyi hedefleyen bir araştırmayı özetlemektedir. Araştırma, 30 DEHB tanısı almış çocuk ve 30 sağlıklı kontrol grubunun EEG verilerini kullanmıştır. EEG verileri öncelikle gürültü azaltma amacıyla işlenmiş ve ardından ConvMixer, ResNet50 ve ResNet18 gibi derin öğrenme modelleri kullanılarak sınıflandırılmıştır. Bulgular, ConvMixer'in düşük hesaplama kaynaklarına ihtiyaç duyarak yüksek sınıflandırma başarısı elde ettiğini göstermektedir. Ayrıca, EEG sinyallerinin DEHB teşhisinde kullanılabilirliği konusunda farklı kanalların etkileri incelenmiş ve T8 kanalının özellikle etkili olduğu tespit edilmiştir. Bu çalışma, EEG tabanlı DEHB teşhisi için daha hafif modellerin kullanılabilirliğini ve EEG kanallarının önemini vurgulamaktadır.
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