Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(87)
- Merdan, Mehmet(70)
- Duran, Celal(56)
- Baltaci, Cemalettin(52)
- Kulakaç, Nurşen(51)
- Ozdes, Duygu(51)
- Kaygusuz, Abdullah(47)
- Öztürk, Serkan(42)
- Demir, Selim(40)
- Karsli, Orhan(37)
- Turan, Ibrahim(37)
- Dokuz, Abdurrahman(36)
- Gücer, Mehmet Ali(36)
- Sipahi, Ferkan(36)
- Araz, Onur(35)
- Kandemir, Raif(31)
- Vural, Alaaddin(31)
- Topal, Fevzi(30)
- Kurt, Kemal(29)
- Ürkek, Bayram(29)
- Maden, Nafiz(28)
- Acet, Tuba(27)
- Alemdag, Selcuk(26)
- Arslan, Mehmet(26)
- Ayaydin, Hasan(26)
- Akaryali, Enver(25)
- Aydin, Faruk(25)
- Baltacı, Cemalettin(25)
- Yücel, Cem(25)
- Akar, Zeynep(24)
- Barut, Abdulkadir(24)
- Ozturk, Samet(24)
- Pala, Fahrettin(24)
- Peker, Iskender(24)
- Topal, Meryem(24)
- Yildiz, Salih(24)
- Öz, Mehmet(24)
- Aliyazicioglu, Yuksel(23)
- Bostan, Sedat(23)
- Kankal, Murat(23)
Yayınlar
- MakaleAçık Erişim2025Scopus SJRQ2In vitro glycemic index, acrylamide content, and some physicochemical and sensorial properties of special dried bread (Peksimet) enriched with einkorn wheat (Tiriticum monococcum L.) flour
Yuksel, Ferhat; Çağlar, Sümeyye
In the present study, einkorn wheat flour (Tiriticum monococcum L.) was incorporated into a special dried bread (peksimet) formulation produced from sourdough breads at different concentrations (0–10–20–30–40 and 50 g 100 g−1) and some physicochemical and nutritional (total dietary fiber, resistant starch, glycemic index, acrylamide content) characteristics and sensory properties of the samples were investigated. The total dietary fiber content of the bread samples ranged from 3.00 to 6.17 g 100 g−1. The highest acrylamide content (247.54 µg/kg) was obtained using an einkorn flour level of 40 g 100 g−1. Einkorn wheat flour resulted in a significant decrease (from 94.61 to 89.23) in the glycemic index level of the bread samples (p < 0.05). Bread enriched with einkorn wheat flour (50.0 g 100 g−1) received the highest overall acceptability score. In conclusion, einkorn wheat flour could be used in a special dried bread formulation to enhance its nutritional quality.
AtıfScopus1WoS1OpenAlex1
İncele - MakaleYalnız künye2025Scopus SJRQ2Hand grip strength in young adults: association with obesity-related anthropometric variables
Doğan, Gökcen; Tokaç Er, Nida; Öztürk, Meryem Elif; Meriç, Çağdaş Salih; Yilmaz, Hacı Ömer; Yabanci Ayhan, Nurcan
Aim: The aims of this study were to evaluate hand grip strength in young adults, to examine its relationship with anthropometric values, and to determine which values are predictive. Subject and methods: This prospective, cross-sectional study was conducted with 913 healthy young adults aged 18–30 years. A questionnaire form was administered in face-to-face interviews, and anthropometric measurements including height, body weight, waist circumference (WC), hip circumference (HC), mid-upper arm circumference (MAC), neck circumference (NC), triceps skinfold thickness (TSF), and hand grip strength (kg) were performed for each participant. Results: Hand grip strength was significantly higher for men than for women (p < 0.001), and was also higher in obese and overweight people compared to underweight participants (p < 0.001). Hand grip strength was correlated with weight, height, body mass index, MAC, TSF, WC, and NC (p < 0.001). The predictive ability of anthropometric measurements in estimating hand grip strength was thus demonstrated in a large population of healthy young adults. Significant regression was found, with an R2 value of 0.556. Hand grip strength increased by 0.282 kg for each centimeter of height and by 0.135 kg for each centimeter of MAC. The hand grip strength of male participants was 0.424 kg greater than that of females. Height, MAC, TSF, and sex were significant predictors of hand grip strength. Conclusion: According to our results, variability in hand grip strength among healthy subjects can be explained by height, MAC, TSF, WC, HC, age, and sex. The estimation of hand grip strength could be established based on these demographic and anthropometric variables.
AtıfScopus4WoS5OpenAlex5İncele - MakaleYayıncıda açık erişim2025Scopus SJRQ2Statistical and seismotectonic analyses of the Marmara region under existing stress regime in the west of the NAFZ
Alkan, Hamdi; Öztürk, Serkan; Bektaş, Özcan; Büyüksaraç, Aydın
The Marmara Region is an active tectonic region in northwestern Türkiye, which comprises some important strike-slip active fault mechanisms and important tectonic units, located near the western part of the North Anatolian Fault Zone. In the historical and instrumental period, the Marmara Region experienced large/devastating earthquakes. Considering this continuous activity, in this study, we investigate the tectonic structure and performed future seismic hazard estimation of the region based on some seismotectonic parameters. For this evaluation, we plot the Coulomb stress change maps of 1912 Mürefte-Şarköy, 1953 Yenice-Gönen and 1999 İzmit mainshocks with the earthquakes (MW ≥ 4.5) that occurred in the study region after 2003. For the estimation of b-value, occurrence probabilities and return periods of earthquakes, we used a homogenous local seismicity catalogue consisting of 119.029 events for the period between 1912 and 2023. In the findings of this study, the lower b-values and increasing Coulomb stress changes which are trigger stress failure compatible are observed in the west and northwest of the Marmara Sea. In contrast, the higher/moderate b-values and decreasing Coulomb stress values are observed in the east and southeast of the Marmara Sea. The results of probability assessments show that an earthquake with Mw = 6.5 may occur with a probability of 98% in the west of the Marmara Sea after 2025. As a remarkable fact, a comprehensive assessment of these types of variables will supply important findings for earthquake hazard and potential in the study region.
AtıfScopus12WoS8OpenAlex11İncele - MakaleYayıncıda açık erişim2025Assessing the reliability of the lightweight deflectometer test for compaction control in highway subbase layers through SPSS analysis
Seferoğlu, Mehmet Tevfik; Seferoğlu, Ayşegül Güneş; Akpınar, Muhammet Vefa; Iribagiza, Divine
The condition of the highway base/subbase layers is critical for the durability and performance of the road pavement. Compaction control plays an important role in determining the ability of these layers to support traffic loads, their strength and stability. Various methods are used to evaluate the compaction rate of subbase layers; such as nuclear density gauge (NDG) and sand cone. These methods also have their own limitations and difficulties. While the NDG test is used to determine the compaction percentages, the lightweight deflectometer (LWD) test is used as a relatively more practical, portable and non-destructive method to measure the surface stiffness modulus (Emod). In this study, the possibility of using the surface stiffness modulus obtained by the LWD test in the subbase layer instead of each other is investigated by establishing a correlation between the compaction percentages determined by the NDG test. To investigate how well the LWD results are in line with established methods, only correlation and regression analysis of SPSS software are focused on. Correlation analysis helped us assess the strength and direction of the relationships between LWD modulus values and compaction percentages, while regression analysis provided insights into the predictive capability of LWD in estimating compaction outcomes. These methods helped evaluate the reliability and accuracy of LWD as a compaction control tool, providing a deeper understanding of the role of LWD in highway subbase layer assessment.
- MakaleAçık Erişim2025Scopus SJRQ1Nursing students' cybersecurity practices and perceptions and cybersecurity crime awareness: A cross-sectional study
Yalcinkaya, Turgay; Tuncer, Metin; Tuncer, Gülsüm Zekiye; Erol, Ahmet; Cinar Yucel, Sebnem
Background: Cybersecurity has become a critical issue with the increasing use of digital platforms in healthcare. Understanding nursing students' cybersecurity practices, perceptions, and cybercrime awareness is essential for improving healthcare security and developing strategies to mitigate cyber threats. Aim: This study aimed to determine nursing students' cybersecurity practices, perceptions, and cybercrime awareness. Design: A descriptive cross-sectional design was used. Setting: The study was conducted between April and June 2024 at a School of Nursing within a public university in Türkiye. Participants: A total of 434 undergraduate nursing students participated in the study. Methods: Data were collected face-to-face using a paper-and-pencil technique. The data collection tools used included the Personal Information Form, Cyber Security Scale (CSS), and Cyber Crime Awareness Scale (CAS). Data analysis utilised descriptive statistical methods, Pearson correlation analysis, independent samples t-test, ANOVA, and linear regression analysis. Results: The study revealed that 92.9 % of the students had not received any prior cybersecurity education. The mean CSS score was 87.50 ± 11.40, and the mean CAS score was 174.75 ± 36.75. A moderate positive correlation was found between the CSS and CAS scores (r = 0.576, p < 0.01). A positive relationship was found between computer usage skills and CSS scores (r = 0.190, p < 0.01), while a weak negative correlation was observed between internet usage duration and CSS scores (r = −0.095, p < 0.05). No relationships were identified between the CSS score and age, gender, or cybersecurity education. Linear regression analysis showed that higher computer usage skill levels were significantly associated with increased CSS scores (B = 1.129, p < 0.001). Conclusions: The findings highlight the importance of integrating cybersecurity education into the nursing curriculum. Enhancing cybersecurity awareness and practices may help protect patient data and support safer healthcare by better preparing nursing students for cyber threats.
AtıfScopus1WoS1İncele - MakaleAçık Erişim2025Scopus SJRQ1Mandala coloring reduces anxiety and pain in circumcised children: A randomized controlled trial
Akay, Gamze; Koç, Elif Simay; Oğuzhan, Hatice
Background: Boys often experience significant fear and anxiety before the circumcision procedure, and postoperative pain is linked to increased fear and anxiety in children. Objectives: The aim of this study was to determine the effect of mandala coloring on fear, anxiety, emotional symptoms and postoperative pain of circumcised children. Methods: This randomized controlled trial was conducted in the pediatric clinic of a state hospital in eastern Turkey. Children were divided into two groups using a computer program: Group 1 (control) included children with no intervention (n = 40), and Group 2 (mandala coloring) included children who received mandala coloring (n = 38). Statistical analyses were performed using the Kolmogorov-Smirnov test to assess the normality of the data, the chi-squared test to compare categorical variables between groups, the paired samples t-test for within-group comparisons, the independent samples t-test for between-group comparisons, and mixed model repeated measures ANOVA (rANOVA) to evaluate the temporal changes in pain and anxiety scores across groups. Findings: Children's fear, anxiety, emotional symptom, and postoperative pain scores were similar in all groups before the nursing intervention, and the fear, anxiety, and emotional symptom scores of the mandala painting intervention group were statistically lower than the control group after the nur csing intervention. The pain scores of the children in the mandala coloring group were lower than the control group after surgery. Conclusion: Mandala coloring intervention can be used to reduce emotional symptoms, fear, anxiety and postoperative pain in children aged 6–12 years undergoing circumcision.
AtıfScopus8WoS6OpenAlex8İncele - MakaleAçık Erişim2025Scopus SJRQ2The effect of psychoeducation on hope, loneliness and depression of nursing students who experienced 6 February 2023 Turkey earthquake
Çakmak, Seher; Uzun, Sevda; Dere, Cansu; Akdemir, Rabia Rümeysa; Baygin, Şevval; Çoban, İclal Gül
Psychoeducation after a traumatic event can help reduce negative effects by providing a cognitive framework for one’s experience. It can also enable trauma survivors to increase their ability to help coping. The aim of this study was to examine the effect of psychoeducation on hope, loneliness and depression in nursing students who experienced 6 February 2023 Turkey earthquake. The study, which was conducted in experimental design, included 40 students who experienced the February 6 earthquake. 20 students were assigned to the psychoeducation group and 20 students to the control group. Students in the psychoeducation group received six sessions of psychoeducation, while students in the control group were not intervened. ’Personal Information Form’, ‘Beck Hopelessness Scale’, ‘UCLA Loneliness Scale’ and ‘Beck Depression Scale’ were used to collect the data. Mean, standard deviation and percentage calculations, chi-square test and t test were used to analyze the data. Sociodemographic characteristics of the students in the psychoeducation and control groups were similar except for the place of residence (p > 0.05). It was determined that the mean score of the hope sub-dimension of the ’Beck Hopelessness Scale’ was statistically significantly higher in the control group (p < 0.05). It was determined that there was no statistically significant difference between the students in the psychoeducation and control groups in terms of hopelessness levels and mean scores of ‘UCLA Loneliness Scale’ and ‘Beck Depression Scale’ (p > 0.05). There was a statistically significant difference between the students in the psychoeducation and control groups in terms of depression levels (p < 0.05). In conclusion, psychoeducation was partially effective on hope and depression and not on loneliness in students who experienced the earthquake. Students in the psychoeducation group had lower levels of depression. It is recommended that students experiencing natural disasters such as earthquakes should be monitored by a specialized psychologist and the duration of psychoeducation should be regulated.
AtıfScopus2WoS2OpenAlex3İncele - MakaleAçık Erişim2025Scopus SJRQ4The analysis of Caputo-Fabrizio fractional plastic waste model with a new numerical method; [Caputo-Fabrizio kesirli mertebeden plastik atık modelinin yeni bir sayısal yöntemle analizi]
Bingöl, Sait; Anaç, Halil
In this paper, the new numerical solutions for Caputo-Fabrizio fractional plastic waste model are derived utilizing a novel hybrid approach known as the Caputo-Fabrizio fractional q-formable homotopy analysis transform method. A novel hybrid method combining the Caputo-Fabrizio transform and the q-homotopy analysis method is introduced. A plastic waste model generally denotes a conceptual or mathematical framework employed to comprehend, simulate, or forecast the movement, accumulation, and effects of plastic trash within a system, spanning from local surroundings to the global scale. The plastic waste model is analyzed in the Caputo-Fabrizio fractional framework. The solutions for the Caputo-Fabrizio fractional plastic waste model are illustrated in the Maple program.
- MakaleYalnız künye2025Scopus SJRQ1Origin and tectonic setting of the carbonate-hosted Kopuz Fe skarn Deposit, Sakarya Zone, NE Türkiye
Sipahi, Ferkan; Akpınar, İbrahim; Gücer, Mehmet Ali; Kaygusuz, Abdullah; Vural, Alaaddin; Saydam Eker, Çiğdem
The Kopuz Fe skarn deposit in the eastern Sakarya Zone is genetically associated with the 44–45 Ma Kopuz granitoid. The Fe ores are hosted within the contact zone between this granitoid and Jurassic Lower Cretaceous limestone. The deposit is characterized by both endo- and exoskarn zones, which exhibit a diverse range of minerals including clinopyroxene, plagioclase, amphibole, biotite, garnet, epidote, phlogopite, magnetite, hematite, pyrite, quartz, calcite, actinolite, limonite, and goethite. Magnetite and hematite, accompanied by small amounts of pyrite, are primarily ore minerals. Pyroxene types observed in the mineralization include diopsidic hedenbergite in the endoskarn zone and diopside in the exoskarn zone. Plagioclase in the endoskarn zone vary from oligoclase to Labrador in composition, which transition towards Na-rich plagioclase and orthoclase in the ore-bearing exoskarn zone. Amphiboles, primarily calcic in nature, are classified as Mg-hornblende and actinolite, with low F and Cl contents, indicating minimal F enrichment during Fe-skarn formation. Garnet is characterized by andradite in the exoskarn zone close to the endoskarn and grossular-andradite in the distal exoskarn zone. The increase of Ad/Gr ratios in zoned garnet indicate an increasing ƒO2 value outward from it. Considering that rare pyrite occur together with magnetite and hematite, we suggest that the deposit formed under conditions of low ƒS2 and high ƒO2 conditions. The homogenization temperature and salinity of the fluid inclusions in quartz from the exoskarn zone vary from 224 °C to 349 °C and 4.18 % (wt% NaCl equiv.), respectively. The oxygen isotope composition (5.10 ‰ to 7.86 ‰) of the fluids in equilibrium with magnetite and quartz minerals in the exoskarn zone supports a magmatic fluid origin. The oxygen isotopic signatures of epidote and amphibole further indicate a minor interaction with an additional source, likely meteoric waters. The sulfur isotope composition of pyrite (2.3 ‰) is consistent with a magmatic sulfur source. In summary, the middle Eocene-aged Kopuz Fe skarn deposit occurred a shallow depth within a magmatic arc, where oxidized conditions predominated.
AtıfScopus6WoS4OpenAlex6İncele - MakaleAçık Erişim2025Scopus SJRQ2Maximizing phonation: impact of inspiratory muscle strengthening on vocal durations and pitch range
Yilmaz, Coşkun; Bostanci, Özgür; Eken, Özgür; Alkahtani, Rania; Aldhahi, Monira I.
Background: This study investigated the acute effects of inspiratory muscle warm-up (IWU) on vocal performance in singers. Proper vocal and respiratory warm-up can enhance vocal range, quality, and endurance. The aim was to determine whether IWU improves maximum phonation time and pitch range, contributing to better voice production efficiency (vocal efficiency) and reduced fatigue. Materials and methods: Singers were selected from the Samsun State Opera and the Ballet Directorate (n = 16). This cross-sectional study aimed to investigate the acute effects. The singers in the control group (SC = 8) performed only one session of routine voice warm-up, and the experimental group (SE = 8) conducted an inspiratory muscle warm-up (IWU) of 2 sets, 30 times/set at 40% maximal inspiratory pressure (MIP) in addition to routine voice warm-up. Subsequently, All participants were then required to perform pre- and post- pulmonary function tests, maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP), and voice recordings (note high pitch, note low pitch, high pitch durations and low pitch durations sustained with one breath, and maximum phonation duration). Results: All pulmonary function and muscle strength parameters improved in the SE group, with the highest increases in MIP (22.9%) and MEP (14.7%). No significant improvements were noted in the SC group (p > 0.05). The Borg Rating of Perceived Exertion showed that the SE group experienced less difficulty with their vocal performance after IWU (-11.6%, p = 0.006), while no significant change was observed in the SC group (p = 0.316). Both warm-up methods used in the study significantly affected the frequencies of high-pitch sounds (SE = 17.8%, SC = 10.9%, p = 0.003); however, the frequency of low-pitch sounds was not significantly affected (p = 0.437). IWU significantly affected the high-pitched note duration (p < 0.001; 32.17%), low-pitched note duration (p < 0.001; 27.11%), and maximum phonation time (p < 0.001; 21%), while routine voice warm-up did not significantly affect any parameter (p > 0.05). Conclusions: The combination of IWU with the general body and voice warm-up protocol can acutely improve vocal performance in terms of maximum phonation time, phonation times of the highest and lowest pitched sounds in a single breath, and vocal range levels.
AtıfScopus9WoS5OpenAlex8İncele - MakaleAçık Erişim2025Scopus SJRQ1The perspectives of nurses, as prominent advocates in sustainability, on the global climate crises and its impact on mental health
Ediz, Çiçek; Uzun, Sevda
Objective: To evaluate the perspective of nurses in Turkey towards the global climate crisis and its impact on mental health using a qualitative approach. Materials and Method: This study was conducted from August to September 2023 with 35 nurses living in seven regions of Turkey using an inductive qualitative approach. The researchers employed the snowball sampling method to select participants. Interviews with the participants were conducted until data saturation was reached. Thematic analysis was used to emerge themes. Results: The findings revealed five main themes (perception of the global climate crisis, effects of the global climate crisis, effects of the global climate crisis on mental health, reflections of the global climate crisis on nursing and nurses' views on prevention and intervention studies for the global climate crisis). Also, the findings revealed 12 sub-themes (physical outcomes, mental outcomes, direct and indirect impacts, psychosocial effects and personal, national and international-based reflections). Conclusion: Our study indicates that nurses exhibit genuine concern for the global climate crisis and experience psychological effects related to this pressing environmental issue. Nurses are keenly aware of their responsibility to safeguard the planet and demonstrate a strong sense of concern for the state of the world. Impact: It is evident that nurses, being prominent advocates for sustainability, are cognizant of their responsibility to protect the planet and demonstrate genuine apprehension for the state of the world. Implications: Nurses play a crucial role, as they make up 60% of the global healthcare workforce and are often the frontline healthcare professionals during natural disasters. It is vital to elucidate and clarify the terminology concerning the relationship between the climate crisis and the mental health of nurses, to determine the scope of this relationship and to make recommendations for future research areas. Patient or Public Contribution: No patient or Public Contribution.
AtıfScopus15WoS13OpenAlex15İncele - MakaleYalnız künye2025Scopus SJRQ2Chemical Composition and Bioactivities of Sideritis libanotica Labill subsp. Libanotica: LC–HRMS Phytochemical Profiling, Mineral Content, Antioxidant, Antibacterial, and Neuroprotective–Antidiabetic Enzyme Inhibitory Potentials
Öztürk Sarıkaya, Sevim Beyza; Zehiroğlu, Cuma
Sideritis libanotica Labill. subsp. libanotica (SLL) is an herbal tea used for colds, coughs, and digestive system disorders. SLL has higher antioxidant activity in methods (µg/mL) like 1,1-diphenyl-2-picrylhydrazyl (DPPH•) (40.912 ± 0.170), ABTS•+ (14.61 ± 0.331) scavenging activity, and Fe3+ (0.872 ± 0.052) and Cu2+ (0.840 ± 0.013) reduction capacity compared to other Sideritis species. It is rich in essential minerals, such as Ca, Mg, and P, with the highest content of mineral K (14 203.97 mg/kg). Zone values in the range of 9–11 mm were obtained from Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Pseudomonas putida, and Klebsiella pneumoniae strains, which is an indicator that the plant has antibacterial activity. Among 33 secondary metabolites, sinapinic acid, rutin, and hispidulin have high values, whereas the one with the highest value is verbascoside (274 483 mg/kg), a pharmacologically active compound. It showed an inhibitory effect (mg/mL) on some enzymes targeting neurodegenerative and metabolic disorders. (IC50; acetylcholinesterase [AChE]: 0.065, butyrylcholinesterase [BChE]: 0.086, α-glucosidase: 0.014).
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2025Scopus SJRQ1Effect of mechanical milling parameters on the properties of electrolytic pure copper powders and hot pressed billets fabricated from recycled copper wastes
Akçay, Serhatcan Berk; Çuvalcı, Oğuzhan; Varol, Temel; Çuvalcı, Hamdullah; Kocaman, Mücahit; Alver, Ümit; Beder, Murat; Güler, Onur; Aksa, Hüseyin Can; Gasha, Shimelis Bihon
This study was conducted to comprehensively investigate the effect of mechanical milling parameters on the properties of electrolytic pure copper powders and hot pressed billets fabricated from recycled copper wastes. Three different milling speeds, five different milling times and three different ball to powder weight ratios were used to fully reveal the effect of the mechanical milling process on the properties of recovered Cu powders. The results show that as the milling time and milling speed increased, the initial dendritic morphology of the copper was transformed into a flake-like structure. At 400 rpm and a 5:1 BPR parameters, the average particle sizes of C3, C4, and C5 after 2, 4, and 8h were ∼52 μm, 83 μm, and 71 μm, respectively. This suggests that particle size initially increases due to shape change and cold-welding, but at longer durations, fracture becomes dominant. The I5 with d(0.5) = 69.32 μm exhibited a high flow rate of 5.88 g/s with an apparent density of 2.9 g/cm3.While the hardness value of the Cu samples (A1-bulk sample) produced by exposure to the lowest deformation during the mechanical milling is 95.02 HB, the hardness value of the Cu specimens (F5-bulk sample) showing the highest apparent density, best flow rate and highest density values is 109.31 HB. The electrical conductivity values were determined to be approximately 52.2 MS/m, 57.4 MS/m and 44.3 MS/m for A1-bulk, F5-bulk and H5-bulk, respectively. This study offers valuable insights into the relationship between milling parameters, powder characteristics, and final material properties.
AtıfScopus6WoS4OpenAlex5İncele - MakaleYalnız künye2025Scopus SJRQ1Optimal design of inerter-assisted series tuned mass dampers for seismic vibration control of multi-story buildings
Araz, Onur
This work introduces a framework for the optimal design of inerter-assisted series tuned mass dampers (STMDI) placed at the top story of a multi-story building under ground motion and performs comparative research to assess its effectiveness against conventional TMDI. The identical inertance ratio and total mass ratio are taken into consideration for the optimization of both control systems. In the frequency-domain analysis, the five design variables of the STMDI are optimized based on the minimization of the peak amplitude of the displacement transfer function at the top story of the building using the genetic algorithm (GA). The optimized variables are damping ratios (ξ1and ξ2), tuning frequency ratios (f1and f2), and mass ratio of the first to second TMD mass (µh). The proposed control system is applied to a 4-story, an 8-story, and a 16-story case-studies, and the optimal parameters are verified using eighty-five historical benchmark earthquakes in time domain analysis. These records are divided into three different groups according to their frequency content, i.e. PGA/PGV ratio: high, intermediate, and low. The results demonstrate that the STMDI performs better than the TMDI at the same mass and inertance ratio, especially at excitation frequencies close to resonance. The most important advantage of STMDI compared to TMDI is that it provides this performance in a wider frequency range and in an almost similar way. Finally, the seismic performances of STMDI and TMDI are compared considering ground motions with different frequency content.
AtıfScopus24WoS25OpenAlex26İncele - MakaleYalnız künye2025Scopus SJRQ2Phenolic Profiles, Mineral Compositions, and Solvent-Driven Antioxidant Potentials of Two Robinia Species
Aktürk, Betül Kara; Arslan Burnaz, Nesibe
The genus Robinia, which belongs to the Fabaceae family, is a source of polyphenols and may be medicinally and pharmacologically effective against life-threatening diseases. This study investigated and compared the phenolic profiles, mineral contents, and antioxidant activities of two Robinia species. The antioxidant activities and phenolic/flavonoid contents of aerial parts of Robinia pseudoacacia and Robinia × ambigua plants at various solvents and concentrations were investigated in detail for the first time. The findings revealed that 50% acetone leaf extracts are promising sources of high phenol/flavonoid contents and antioxidant activity. Liquid chromatography–electrospray ionization–tandem mass spectrometry (LC–ESI–MS/MS) analysis allowed the identification of nine flavonoids and seven phenolic acids. Pelargonidin chloride, a common anthocyanidin with estrogenic activity, was the major component in all samples. Moreover, inductively coupled plasma–mass spectrometry (ICP–MS) shows that all samples were rich in K (12 886.70–26 078.11 mg/kg), Ca (1550.51–6011.03 mg/kg), and Mg (1676.13–3115.10 mg/kg). Leaves stand out compared to flowers. It is considered that the results obtained may guide studies in the fields of medicine, cosmetics, pharmacology, and so forth.
AtıfWoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ2Novel Sulfonylhydrazones With Sulfonate Ester Framework: Promising Dual Inhibitors of AChE and hCAs
Öztürk, Cansu; Balci, Neslihan; Aslan, Osman Nuri; Kalay, Erbay
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that affects millions of individuals worldwide. Treatment strategies for AD vary depending on cognitive and behavioral symptoms, with cholinergic replacement therapy using acetylcholinesterase (AChE) inhibitors being one of the primary approaches. Recent studies have also identified human carbonic anhydrases (hCAs) as significant therapeutic targets for AD, offering new opportunities for the development of innovative treatments. Carbonic anhydrase inhibitors have been shown to prevent early mitochondrial damage and inhibit H2O2 production, thereby reducing amyloid plaque formation. Building on the promising potential of hydrazones particularly sulfonyl hydrazones as anticholinesterase agents, we synthesized 12 novel chlorine-substituted sulfonyl hydrazone compounds containing aryl sulfonate ester groups. These compounds were evaluated for their inhibitory effects on AChE, hCA I, and hCA II enzymes. The synthesized compounds exhibited low nanomolar inhibitory activity, with Ki values ranging from 9.58 ± 2.22 to 104.04 ± 23.82 nM for AChE, 9.12 ± 2.21 to 477.63 ± 218.52 nM for hCA I, and 17.54 ± 7.74 to 564.62 ± 213.98 nM for hCA II. Notably, compound 6 showed strong inhibitory activity against hCA I (Ki = 9.12 ± 2.21 nM; acetazolamide (AZA) = 26.54 ± 3.11 nM) and hCA II (Ki = 17.54 ± 7.74 nM; AZA = 21.73 ± 2.42 nM), whereas compound 4 exhibited superior AChE inhibition (Ki = 9.58 ± 2.22 nM; TAC = 23.12 ± 2.05 nM). The chemical structures of the synthesized compounds were characterized using advanced spectroscopic techniques, including FT-IR, 1H-NMR, and 13C-NMR spectroscopy.
AtıfScopus12WoS11OpenAlex9İncele - MakaleAçık Erişim2025Scopus SJRQ4A deep learning approach powered by GhostNet for skin cancer classification; [GhostNet tabanlı derin öğrenme yaklaşımı ile cilt kanseri sınıflandırması]
Almasani, Heba; Ture, Hayati
Skin cancer, especially melanoma, continues to cause a disproportionate percentage of cancer-related deaths despite its high curability when detected early. This work presents an efficient deep-learning system aimed at the binary classification of dermoscopic images as malignant or benign using the GhostNet family of convolutional neural networks (CNNs). The publicly available ISIC-2019 dataset was used for training its extreme class imbalance was corrected using a hybrid Synthetic Minority Over-sampling Technique coupled with Edited Nearest Neighbours (SMOTE-ENN). End-to-end fine-tuning of three variants of GhostNet (V1, V2, V3) was performed with preprocessing, augmentation, and hyper-parameters kept constant to ensure a fair model-to-model comparison. Evaluation metrics used were accuracy, precision, recall, F1-score, and the area under the receiver-operating-characteristic curve (AUC). GhostNet V2, augmented with depth-wise attention, gave the strongest results: 95% accuracy, 94% malignant class recall, F1-score of 94.3%, and an AUC of 0.99. GhostNetV2 performed better than both the baseline V1 and V3 without having a parameter count that would prevent real-time inference on mobile hardware. These results of Accuracy, sensitivity, F1-score, AUC and recall show that, when combined with targeted imbalance correction, efficient architectures such as GhostNet are capable of dermatologist-level sensitivity without the computational requirements of heavier models, and thus are feasible for point-of-care or resource-constrained settings. It is complementary to our previous work with other CNNs, allowing model-to-model comparison directly.
AtıfScopus1
İncele - MakaleYalnız künye2025Scopus SJRQ3Factors Influencing Coordination Dynamics in Disaster Response: Governance Insights from the 2023 Kahramanmaraş Earthquakes
Camurcu, Melike; Oral, Vildan; Cengiz, Ekrem
Following the 2023 Kahramanmaraş-centered earthquakes in Türkiye, multi-actor and multi-sectoral response structures were implemented, creating significant challenges in coordination. Accordingly, the current study aims to assess the factors affecting intra- and inter-team coordination in disaster response processes, as well as the factors that negatively impact coordination activities, and to propose recommendations for improvement. The study is based on data collection from expert participants working at the disaster coordination center using qualitative research methods. Thematic analysis was used in the analysis of interview data, and coordination problems were identified as arising from seven main themes. The results highlight the importance of reducing centralization, modular training, empowering local actors, horizontal organization, delegation of authority, and participatory governance models. Content of this journal is licensed under a Creative Commons Attribution 4.0 International Non-Commercial LicenseTÜRK
AtıfOpenAlex1TR Dizin1İncele - MakaleYalnız künye2025Scopus SJRQ2A Comprehensive Assessment for the Aftershock Sequence of August 11, 2012 Varzaghan-Ahar Doublet Mainshocks, NW Iran
Öztürk, Serkan; Yaghmaei-Sabegh, Saman
In this study, an evaluation of regional, temporal and magnitude properties of the August 11, 2012 Varzaghan-Ahar aftershock sequence was performed based on the different variables such as the Gutenberg-Richter b-value, the Modified Omori p-value, fractal dimension Dc-value and the maximum aftershock magnitude Mamax value which commonly used to describe aftershock behaviors. b-value was computed as 0.73 ± 0.03 for the study area where catalog has a completeness magnitude Mc = 2.0. This b-value is relatively small from typical b≈1 and it can be due to the abundance of aftershocks larger than Mw = 4 in the region. Structural heterogeneity of the seismic source along with the compressive stress situation of the aftershock area could be another reason for this finding as well. p-value was estimated as 1.00 ± 0.03 where c-value took 0.342 ± 0.106 according to the analysis which shows that the number of aftershocks of the Varzaghan-Ahar mainshock shows a relatively fast decrease. Dc-value was computed as 1.84 ± 0.07. This large value indicates homogeneously distributed aftershocks and more clustering in smaller areas or larger scales. As a result, the smallest b-values (< 0.7) and Mamax values larger than 5.0 were obtained around the mainshock. In addition, the biggest p-values (> 1.2) were found in and around the mainshock including Varzaghan. The areas having the biggest p-value and the lowest b-value have great coseismic deformation and stress, respectively. Hence, we can say that coseismic deformation and stress distributions are very effective on the b- and p-value changes. Thus, particular attention on assessing the aftershock hazard may be directed on the understanding of these spatio-temporal aftershock variables.
AtıfScopus2OpenAlex2İncele - MakaleAçık Erişim2025Scopus SJRQ2Insight into the adsorptive removal of Cr(VI) ions and 4-chlorophenol from aqueous media on cationic surfactant-modified cucumber peels
Ozeken, Sengul Tugba; Ozdes, Duygu; Duran, Celal
A new and cost-effective adsorbent material was developed by chemical modification of cucumber peels (CP) with a cationic surfactant, cetyltrimethylammonium bromide (CTAB). The adsorptive behavior of CTAB-modified cucumber peels (CMCP) was investigated in the retention of an organic pollutant (4-chlorophenol) and an inorganic pollutant (Cr(VI)) through batch experiments. The adsorbents were characterized by Fourier transform infrared spectroscopy (FTIR) analysis and scanning electron microscopy (SEM) technique. Influences of initial concentrations of both pollutants, dosage of CMCP, initial solution pH, contact time, and foreign ions were parameters used to specify the optimized conditions. Results of the experiments were evaluated by three kinetic models, namely pseudo-first-order, pseudo-second-order, and intraparticle diffusion models, to find out the dominant mechanisms in the retention of 4-chlorophenol and Cr(VI). Langmuir, Freundlich, and Dubinin–Radushkevich isotherm models were applied to the adsorption data to estimate the adsorption capacity of CMCP and to describe the interactions between the species. Langmuir isotherm model fitted the data well, and the maximum Cr(VI) and 4-chlorophenol adsorption capacities of CMCP were 84.03 mg g−1 and 107.5 mg g−1, respectively. Consequently, CMCP demonstrated outstanding performance in the adsorption of both inorganic and organic pollutants, offering a low-cost, easily prepared alternative to other adsorbents reported in the literature.
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