Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(115)
- Kaya, Yunus(50)
- Ayata, Ümit(48)
- Şahin, Engin(48)
- İspirli, Hümeyra(46)
- Bayraktar, Bülent(42)
- Şenay, Volkan(41)
- Can, Zehra(39)
- Özen, Soner(37)
- Bayram, Sinan(35)
- Pat, Suat(35)
- Öztürk, Mesut(35)
- Ecem Bayram, Nesrin(34)
- Esmer, Yusuf(34)
- Battal, Fetullah(33)
- Artar, Musa(32)
- Öner, Erdal(32)
- Korkmaz, Şadan(31)
- Yilmaz, Mustafa Tahsin(31)
- Ertugrul, Mehmet(30)
- Mercan, Emin(30)
- Hasar, Ugur Cem(29)
- Kutlu, Naciye(28)
- Özdemir, Akın(27)
- Kul, Murat(26)
- Cuce, Erdem(25)
- Kamiloğlu, Aybike(25)
- Bayram, Ozkan(24)
- Sefali, Abdurrahman(24)
- Sert, Durmuş(24)
- Çolak, Murat(24)
- Ayazoglu, Rabil(22)
- Gıdık, Betül(22)
- Maden, Sedat(22)
- Ustabulut, Mete Yusuf(22)
- Uçurum, Metin(22)
- Akeren, Zahide(21)
- Dirican, Ebubekir(21)
- Kara, Yakup(21)
- Abdioglu, Murat(20)
Yayınlar
- MakaleYayıncıda açık erişim2023Scopus SJRQ2A randomized controlled trial of reflexology effect after abdominal surgery on patient satisfaction, pain and vital signs
Kapıkıran, Gürkan; Bulbuloglu, Semra; Gunes, Huseyin; Saritaş, Serdar; Demir, Bilsev
Objective: In our study, we investigated the effect of reflexology on patient satisfaction, pain and vital signs after abdominal surgery. Method: This study was conducted as a randomized controlled trial with the participation of 156 abdominal surgery patients hospitalized in the general surgery unit of a training and research hospital. Personal Information Form, Visual Analogue Scale and Newcastle Nursing Care Satisfaction Scale were used in data collection. We performed the data analysis with One-way analysis of variance, Chi-squared test, paired samples t-test, and independent samples t-test. Results: When the pain, vital signs and satisfaction levels of the experimental and control groups were compared, the pain intensity of the experimental group was found to be lower and the level of satisfaction was higher after reflexology (p<0.01). After reflexology, the blood pressure was closer to 120/80 in the experimental group, the respiratory rate was between 16-22 (number/minute), the difference between the experimental and control groups were statistically significant (p<0.01). There was no statistically significant difference between the pulce oximetry values between the experimental and control groups. Conclusion: Surgical pain and non-optimal vital signs that are not well managed after surgery causes various complications and decrease patient satisfaction. The results of our study emphasize the power of reflexology in effective surgical pain management and normalizing vital signs and increasing patient satisfaction. We suggest that reflexology be performed to patients following abdominal surgery.
AtıfScopus8WoS7OpenAlex10
İncele - MakaleAçık Erişim2023Scopus SJRQ2Evaluation Expression of the Caspase-3 and Caspase-9 Apoptotic Genes in Schizophrenia Patients
Dirican, Ebubekir; Özcan, Halil; Uzunçakmak, Sevgi Karabulut; Takım, Uğur
Objective: Apoptosis is programmed cell death that occurs by several pathways. Caspase-3 is induced by active caspase-9 via the intrinsic pathway. The aim of this research was to explore the expression of caspase-3 and caspase-9 in schizophrenia patients and healthy samples. Methods: RNA was isolated from the peripheral blood of 39 schizophrenia patients’ and healthy samples. After cDNA synthesis, real time PCR (RT-PCR) was used to analyse caspase-3 and caspase-9 gene expression. The severity of psychopathological symptoms of schizophrenia was evaluated using the Positive and Negative Symptoms Scale for schizophrenia (PANSS) and Clinical Global Impressions (CGI). Results: The expression of caspase-3 and caspase-9 genes was higher in schizophrenia patients than in healthy samples (p = 0.012, p = 0.002, respectively). The increase in caspase-3 gene expression was significant with being male, smoking and with a duration of less than 6 years (p = 0.047, p = 0.049, p = 0.034, respectively). On the other hand, the increase in caspase-9 gene expression was significant in patients who is smoke, have children, and are under 33 years old (p = 0.040, p = 0.043, p = 0.045, respectively). A significant positive correlation was detected between the caspase-3 and caspase-9 gene expression (r = 0.3218, p = 0.049). Conclusion: Our findings indicate that caspase-3 and caspase-9 gene expression may activate cell death mechanisms by intrinsic apoptotic genes. Furthermore, caspase-3 and caspase-9 may play essential roles in different ways in schizophrenia. Hence there is a need to further study the apoptotic mechanism with expanded patient populations.
AtıfScopus45WoS47OpenAlex42İncele - MakaleAçık Erişim2023Scopus SJRQ2Tourism and FDI-Growth Nexus in Upper-Middle Income Countries: Evidence from Static and Dynamic Panel Analyses
Soylu, Özgür Bayram; Adeleye, Bosede Ngozi; Okur, Fatih; Emikönel, Murat
This paper examines the role of tourism in foreign direct investment-growth relations in upper-middle-income countries. We deploy static and dynamic panel analysis to evaluate how tourism indicators influence the impact of FDI net inflows on growth using unbalanced panel data on 29 upper-middle-income countries from 2010 to 2019. The tourism indicators are receipts, arrivals, and expenditures. The results from static and dynamic analyses indicate that for the most part (1) FDI and tourism exert asymmetric effects on growth, (2) tourism indicators reduce the negative effect of FDI on growth, (4) trade openness is a positive and significant predictor of growth, and (5) domestic credit negatively contributes to growth. Deductively, results evidence that tourism indicators are critical drivers of economic growth in upper-middle-income countries. Overall, tourism receipts show the largest influence on FDI to spur the most appreciable impact on growth. Despite this, the fact that tourism indicators cannot eliminate the destructive impact of FDI on economic growth shows that tourism development policies should be based on a greener and more sustainable ground, taking into account the effects of the coronavirus.
AtıfScopus8WoS7OpenAlex6İncele - MakaleYalnız künye2023Scopus SJRQ2The willingness of elderly care program students to care for older adults and the associated factors: a multi-centered research
Okur, Elif; Akbal, Yağmur; Yagci Sentürk, Aysun; Daştan, Buket; Kuralay, Çiğdem
Prospective technicians for elderly care are indispensable elements that should be included in the relevant system to meet the ever-increasing care needs of the aging world population and increase the quality of care. This research was conducted to evaluate the attitudes of students in the elderly care program at the associate degree toward the older adults and their willingness to provide care. The sample of this descriptive and cross-sectional study comprised 525 volunteer students in elderly care programs in five vocational schools of higher education located in northeastern Turkey between June 2020 and September 2020. Mean, standard deviation, number, percentage, independent t-test, and correlation analysis were used to evaluate the data. The study showed that the mean age of the students involved in the study was 20.3 ± 1.6. 77.7% of them were female, and 61.9% were in the first grade. Students’ willingness to care for older adults was found to be at a moderate level (36.3 ± 6.0). The students had a negative attitude (137.4 ± 26.7) about aging and elderliness. The willingness of male students to care for older adults was significantly higher (p <.05). Those who did not live with an older adult in the same house before had a more negative attitude toward them (p <.05). To get rid of personal and social stereotypes and have a positive attitude toward older adults, students should be provided to work in clinical environments that will allow them to spend more time with them.
AtıfScopus5WoS5OpenAlex9İncele - MakaleAçık Erişim2023Scopus SJRQ3Enhancing magnetic levitation and guidance force and weight efficiency of high-temperature superconducting maglev systems by using sliced bulk YBCO
Abdioglu, Murat; Ozturk, U. Kemal; Guner, Sait Baris; Ozturk, Mehmet; Mollahasanoglu, Hakki; Yanmaz, Ekrem
We aimed to enhance the magnetic force efficiency of Maglev systems without increasing total weight. For this aim, we divided YBCO bulks into three slices horizontally to utilize the YBCO-permanent magnetic guideway (PMG) interaction surface as much as possible. We used whole YBCO above PMGs with different magnetic pole directions (PMG-A and PMG-B) in two lying positions of transversal and longitudinal and investigated levitation and guidance force performances. It is determined that levitation and guidance forces by using YBCO in transversal lying mode are bigger compared to the longitudinal mode. For sliced YBCO, the maximum levitation force increased by 69% and 78%, while the guidance force enhancements are determined as 212% and 91%, compared to the whole YBCO above PMG-A and PMG-B, respectively. The levitation and guidance force density with respect to the total mass of unit a set of slices YBCO increased by 92% and 106%, respectively, compared to the whole YBCO above PMG-B in transversal mode. Since the higher levitation force and the lower total weight of the onboard unit are important parameters in point of the energy efficiency in Maglev and other levitation applications, the result of this study supplies useful data for the engineers and industrial partners.
AtıfScopus7WoS7OpenAlex6İncele - MakaleYalnız künye2023AN EXAMINATION OF EMOTIONAL AND CREATIVE LEVELS AMONG TERTIARY STUDENTS IN TEAM AND INDIVIDUAL SPORTS
Çingöz, Yunus Emre; Mavibaş, Muhammet
The primary objective of this research was to investigate the effect of emotional states on creativity levels tertiary students in team and individual sports. The study further aimed to discern the various emotional states and creativity levels prevalent among athletes, contingent on different variables. The participants comprised 302 athletes, 162 males and 140 females, who were all registered students in the Faculty of Sports Sciences at Bayburt University. In order to gather demographic data, the researchers constructed a “Personal Information Form”. The “Sports Emotion Scale”, developed by Urfa and Aşçı (2019), was utilized to assess the emotional states of the athletes within their respective sports. To evaluate their creativity levels in sports, the “Creativity Scale for Athletes”, constructed by Güngör et al. (2020), was utilized. Data analysis incorporated frequency analysis for determining the participants' demographic attributes, and descriptive tests for establishing the mean scores of both emotional states and creativity levels in sports. The independent t-tests were used to compare emotional and creativity levels based on gender and sport type. One-way ANOVA tests were used to compare emotional and creativity levels based on educational level and years of sports experience. Post-hoc comparisons were facilitated using Tukey tests to identify specific group differences. Lastly, multiple linear regression analysis was applied to scrutinize the impact of emotional states on creativity levels in sports. The research findings indicate that athletes participating in team sports demonstrated higher levels of enthusiasm and happiness, as determined by the sub-dimensions of the Sports Emotion Scale, when compared to athletes participating in individual sports. In addition, it was noted that an increase in feelings of unhappiness among athletes corresponded to a decrease in their levels of sports creativity. Conversely, a surge in enthusiasm was associated with heightened creativity levels within sports.
- MakaleAçık Erişim2023Scopus SJRQ1Exploring the Charge Transport of a Natural Eumelanin for Sustainable Technologies
Paulin, João V.; Bayram, Sinan; Graeff, Carlos F. O.; Bufon, Carlos C. B.
Eumelanin, the main quinone-based biomaterial of the melanin family of compounds, is emerging as a model for medical and sustainable electronic interfaces due to its biocompatibility, biodegradability, and transducing abilities. The study utilizes current-voltage measurements and impedance/dielectric spectroscopy under a controlled hydration atmosphere to investigate the charge transport of eumelanin produced from the S. parvus BSB49 strain. We show no differences in the electrical response in highly hydrated conditions compared to the standard synthetic eumelanin. Hence, our findings provide the groundwork to assess the potential use of this natural eumelanin in sustainable organic (bio)electronic applications.
AtıfScopus13WoS14OpenAlex16İncele - MakaleAçık Erişim2023Scopus SJRQ2Characterization of Bee Bread Produced with Defined Starter Cultures Mimicking the Natural Fermentation Process
Poyraz, Fatmanur; Yalmanci, Dilara; İspirli, Hümeyra; Dertli, Enes
Bee bread is a product with unique properties for humans and bees that is produced through the fermentation of pollen in the honeycomb, mainly caused by lactic acid bacteria (LAB) and yeast strains present in the environment. It is a rich source of nutrients such as proteins, polyphenols and vitamins. Despite the potential nutritional value of bee bread, it is consumed at low levels, as harvesting bee bread from the hives is costly and difficult. This study aimed to produce a standard bee bread by using different strains of the fructophilic lactic acid bacteria (FLAB) Lactobacillus kunkeei and the yeasts Starmeralla magnolia MP-2 and Zygosaccharomyces siamensis MP-14, previously isolated from bee products. In this context, bee bread was produced from pollen by solid-state fermentation using selected FLAB and yeast species, which were then compared with spontaneously developed and commercially available bee bread in terms of microbial stability, physicochemical properties, total phenolic component amounts, in vitro digestibility and amino acid profiles. As a result, it was determined that bee bread made from bee pollen fermented with starter cultures showed improved characteristics than commercial bee bread and was more advantageous in terms of absorption as well as production processes.
AtıfScopus19WoS17OpenAlex18İncele - MakaleAçık Erişim2023Scopus SJRQ2Contribution of Oxidative Stress, Apoptosis, Endoplasmic Reticulum Stress and Autophagy Pathways to the Ameliorative Effects of Hesperidin in NaF-Induced Testicular Toxicity
Emre Kızıl, Hamit; Gür, Cihan; Ayna, Adnan; Darendelioğlu, Ekrem; Küçükler, Sefa; Sağ, Sevda
The ameliorative effects of hesperidin (HES) on the toxicities created by sodium fluoride (NaF) in the testes tissue of rats were studied via oxidative stress, apoptosis and endoplasmic reticulum (ER) stress pathways. The animals were divided into five distinct groups (7 rats in each group). Group 1 was control group, group 2 received NaF-only (600 ppm), group 3 received HES-only (200 mg/kg bw); group 4 received NaF (600 ppm)+HES (100 mg/kg bw) and group 5 received NaF (600 ppm)+HES (200 mg/kg bw) for 14 days. NaF-induced testes tissue damage by reducing activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) and levels of glutathione (GSH), and increasing lipid peroxidation levels. NaF treatment significantly downregulated the mRNA levels of SOD1, CAT and GPx. NaF supplementation caused apoptosis in the testes by upregulating p53, NFkB, caspase-3, caspase-6, caspase-9, and Bax and downregulating Bcl-2. Furthermore, NaF caused ER stress via increasing mRNA transcript levels of PERK, IRE1, ATF-6 and GRP78. NaF treatment led to autophagy via upregulation of Beclin1, LC3A, LC3B and AKT2. In testes tissue, however, co-treatment with HES at doses of 100 and 200 mg/kg significantly reduced oxidative stress, apoptosis, autophagy and ER stress. Overall, the findings of this study suggest that HES may help to reduce testes damage caused by NaF toxicity.
AtıfScopus49WoS46OpenAlex47İncele - MakaleAçık Erişim2023Scopus SJRQ1Palynological, chemical, antimicrobial, and enzyme inhibition properties of Cannabis sativa L. propolis
Özkök, Aslı; Karlıdağ, Semiramis; Keskin, Merve; Bayram, Sinan; Keskin, Şaban; Karabulut, Ercan; Çiçek, Fevzi; Yılmaz, İsmet
In this study, both chemical characterization and biological activities of propolis samples obtained from Cannabis sativa L. (cannabis, hemp, marijuana) isolated colonies (research group) and obtained from colonies at a distance where the bee cannot fly to the isolation area (control group) were determined. Palynological analyses of propolis samples obtained from the research and control group colonies were made and the botanical origin of the cannabis plant and other plants in the research area and the plants in the control group were determined. Bioactive component analysis of propolis extracts was determined by the GC–MS technique. The inhibition effect of propolis samples on some enzymes of medical importance and their antimicrobial effects against many pathogenic microorganisms were also investigated. Palynological analyses showed that honey bees prefer cannabis plants (11.11%) when collecting propolis, and the dry matter percentage (94.6 ± 1.8%), balsam (46.2 ± 5.2%), and wax content (4.8 ± 0.5%), total phenolic (26.44 ± 1.08 mg GAE/mL) and total flavonoid (2.03 ± 0.11 mg QE/mL) content and antioxidant capacity (88.16 ± 2.27 μM FeSO4·7H2O/mL−1) of the research group propolis samples containing hemp were found to be higher than the control group. Also, it was determined that the research group propolis sample contains cannabinoid derivatives (cannabidivarinic acid, 0.29%; delta (1)-tetrahydrocannabinolic acid, 0.59%; cannabidiolic acid, 0.48%), which are active compounds of the cannabis plant. Also, a high inhibition effect was detected on some enzymes of medical importance in propolis samples obtained from cannabis group colonies. In addition, the research group propolis samples also showed a high antimicrobial effect against many pathogenic microorganisms.
AtıfScopus5WoS5OpenAlex4İncele - MakaleAçık Erişim2023Scopus SJRQ2Thermal, rheological, and mechanical characterization of compression and injection molded ultra-high molecular weight polyethylene, high density polyethylene, and their blends
Yang, Huaguang; Yilmaz, Galip; Jiang, Jing; Langstraat, Thomas; Chu, Raymond; van Es, Martin; Garg, Priya; Turng, Lih-Sheng
Tensile and impact test samples of ultra-high molecular weight polyethylene (UHMWPE), high-density polyethylene (HDPE), and their blends at various UHMWPE/HDPE weight ratios were prepared via compression molding and injection molding for thermal, rheological, and mechanical characterization. A twin-screw extruder with either a tapered die with air-cooling or a regular die was used to compound and extrude the materials prior to pelletization and molding. To the best of our knowledge, there has been no publication on pelletizing neat UHMWPE using a regular extruder. The differential scanning calorimetry analysis suggested the occurrence of re-crystallization and co-crystallization for all the blends. The rheology test confirmed that all the blends exhibited a solid-like behavior and the degree of compatibility increased with increasing HDPE content in the blends. A strong synergistic effect was observed the blends possessed a higher tensile and impact strength than their neat UHMWPE and HDPE counterparts. The compression molded (95/5) UHMWPE/HDPE samples extruded using the tapered die yielded the highest tensile strength (50.1 MPa), which was about 40% higher than that of the neat UHMWPE samples. The best composition of these blends for compression and injection molded parts is 10% HD and 50% HD, respectively.
AtıfScopus13WoS13OpenAlex14İncele - MakaleYalnız künye2023EXAMINING COGNITIVE STRUCTURES OF SECONDARY SCHOOL STUDENTS REGARDING CONCEPTS RELATED TO MULTICULTURAL EDUCATION
Yılmaz, Sevda
The aim of this study was to investigate the cognitive structures of secondary school students regarding concepts related to multicultural education. The study was conducted through a survey design. The study group consisted of 189 eighth-grade students studying in secondary school. Out of the 189 participants, 97 were female and 92 were male. The criterion sampling method, one of the purposeful sampling methods, was used in the selection of the study group. Word Association Test was used as a data collection tool for the research. According to results of the study, it was determined that secondary school students associated the most words with the concept of culture and the fewest words with the concept of respect. In addition, it has been determined that there is a misconception in the cognitive structures of the students regarding the perceptions of justice and equality. The research results has also shown that the students only weakly correlated concepts related to multicultural education.
- MakaleYalnız künye2023Scopus SJRQ3Modified distance optimization method for the asymmetric bioreduction conditions of phenyl(thiophen-2-yl)methanone by Weissella paramesenteroides N7
Özdemir, Akın; Şahin, Engin
Chirality plays a significant part in life since it is closely linked to carrying out the many metabolic processes that make up a living being. Chiral secondary alcohols such as diaryl-, aryl heteroaryl-, and diheteroaryl are employed in pharmaceuticals as drug intermediates. Although biocatalytic asymmetric reduction of prochiral ketones containing aromatic and heteroaromatic groups is widely known, biocatalytic reduction of heteroaromatic prochiral ketones containing sulfur heteroatoms is rarely known. Very few studies exist in the literature, including the biocatalytic reduction of phenyl(thiophen-2-yl)methanone (1). Moreover, the biocatalytic reduction of 1 with a mathematical modelling and optimization technique is unknown until now. In this study, Weissella paramesenteroides N7 biocatalyst for the asymmetric bioreduction of 1 using a novel modified distance optimization method. Optimization conditions were found as pH = 6.46, temperature = 26 °C, incubation period = 71 h, agitation speed = 200 rpm by the modified distance optimization method, and it was determined that the conversion and enantiomeric excess (ee) under these conditions could be 98.7% and 98%, respectively. Under these proposed optimization conditions, (S)-phenyl(thiophen-2-yl)methanol ((S)-2) was obtained with >99% ee, >99% conversion, and 97% yield. In addition, 11.29 g of 1 was completely converted into (S)-2 (11.07 g, 97% isolated yield) under optimized conditions. This is the first report about the fabrication of enantiopure (S)-2 in high gram scale using a biocatalyst and a novel modified distance optimization technique. In this study, the successful applicability of the new modified distance optimization method in biocatalytic asymmetric reduction reactions has been successfully demonstrated.
AtıfScopus3WoS3OpenAlex5İncele - MakaleAçık Erişim2023Scopus SJRQ3Numerical investigation of the Mode I/Mode II fracture behavior of the hybrid composite joints with a hybrid bondline
Erbayrak, Engin
In this study, the fracture behavior of fracture characterization bonded joints consisting of hybrid composite adherends and hybrid bondlines under Mode I and Mode II loadings were investigated numerically. Numerical analysis was performed using LS-DYNA. Hybrid composite laminates (HCGFRE) obtained by sequencing plain woven glass fiber reinforced epoxy (GFRE) and plain woven carbon fiber reinforced laminates (CFRE) as adherends. Araldite AV138M and Araldite 2015 epoxy adhesives were also used to create the hybrid bondline. Mode I and mode II fracture behaviors were determined by numerical modeling of the Double Cantilever Beam (DCB) and End Notched Flexural (ENF) tests, respectively. In the numerical model, firstly, the fracture parameters of the relevant adhesives were found in the literature, and verification was made utilizing the numerical model. Then, the fracture behavior in both two modes was examined by forming a hybrid bondline. In the literature, there are restricted studies examining the fracture behavior of fracture characterization bonded joints with hybrid bondlines. Additionally, it is not encountered any study determining the both mode I and mode II fracture behavior of composite fracture characterization bonded joints with hybrid bondlines. Therefore, it is thought that this study will gain significant novelties to the existing literature.
AtıfScopus1OpenAlex2İncele - MakaleAçık Erişim2023Scopus SJRQ1An extensive survey on radiation protection features of novel hafnium iron-borophosphate glasses: Experimental and theoretical study
Şakar, Erdem; Alım, Bünyamin; Ertap, Hüseyin; Karabulut, Mevlut
This study aimed to determine the radiation (photon and particle) attenuation abilities of Hf added iron-borophosphate glasses considered as a candidate host matrix for Pu containing nuclear waste. Experimental absorption parameters were measured using 133Ba radionuclide for photon radiation, and the same parameters were theoretically calculated using Phy-X/PSD. The obtained data were evaluated comparatively for all glasses depending on the Hf and B contents. It has been determined that all of the glasses examined have photon absorption ability at a level that can be a shielding material for nuclear applications. In addition, the interaction cross-sections with particle radiations were computed using SRIM and ESTAR software. When the data obtained are evaluated thoroughly, it can be said that investigated glasses can be used as shielding in areas that require protection from both photon and particle radiation, in addition to being a candidate material for the vitrification of nuclear wastes containing Pu.
AtıfScopus5WoS6OpenAlex8İncele - MakaleAçık Erişim2023Scopus SJRQ1Optimizing the seismic resilience performance of steel truss bridges by maximum energy dissipation via friction dampers
Artar, Musa; Carbas, Serdar
The primary aim of this study is to propose an innovative design methodology for optimizing the seismic resilience performance of steel truss bridges by dissipating the maximum input seismic energy. Maximum seismic energy dissipation is carried out by means of Pall friction dampers (PFDs), popularly categorized among passive energy-damping devices. PFDs distribute input seismic energy with a slip motion along with friction during an earthquake. For that, it is important to determine the optimal slip load value for the PFDs to start working before the structural elements reach the yield point. To determine the optimal slip load values of the PFDs under earthquake effects, the maximum seismic energy distribution is assured by nature-inspired Squirrel Search (SS) and Water Strider (WS) metaheuristic algorithms for steel truss bridges equipped with PFDs. Finally, steel truss bridges on which PFDs with optimal slip load values have been implemented are optimally designed to achieve the minimal structural weight while satisfying ASD-AISC Code of Practice requirements. In order to demonstrate the validity of the proposed design methodology, two design examples of 113-member and 465-member steel truss bridges steel are presented. The optimal slip loads attained with the SS and WS algorithms by conducting the proposed design methodology are 2.45% and 3.75% of the structural weight for the first design example and 2.64% and 2.63% of the structural weight for the second design example, respectively, which are much lower than those considered in practical applications. Moreover, the numerical results show that by 93.5% and 99.48% maximum distribution rates of input seismic energy are accomplished in the bridges. The results indicate that the proposed design methodology exhibit superior performance in optimizing the seismic resilience performance of steel truss bridges by maximum energy dissipation via friction dampers.
AtıfScopus8WoS4OpenAlex5İncele - MakaleAçık Erişim2023Scopus SJRQ1Prevalence and predictors of psychological assistance services for older individuals in Turkish society
Coşkun, Hüseyin; Yildiz, Ibrahim; Alkan, Ömer
Background/aim: Due to the high contribution of psychological problems to the decline in the comfortable lifestyle of the older individuals, determining the factors that affect individuals' receiving psychological services and searching for solutions based on these factors is one of the primary concerns of national and international decision-makers. This study aimed to identify the factors that affect older individuals' access to psychological assistance services in Turkey. Methods: In this study, the Turkish Health Research micro dataset, which was conducted by the Turkish Statistical Institute (TURKSTAT) in 2016 and 2019, was employed. In this dataset, the data of 7,252 older individuals were analyzed. Using binary logistic analysis, the factors that are effective for obtaining psychological assistance for the older individuals were identified. Results: According to the results of the analysis, factors such as gender, education, general health status, disease status, payment of health expenditures, and body mass index affected older individuals who received psychological assistance. Conclusion: In recent years, there has been a rise in the availability of psychological assistance services for the older individuals. By identifying factors that increase the likelihood of receiving psychological assistance services, this study is expected to contribute to the creation and regulation of psychological assistance services to prevent possible psychological problems that may occur in old age, minimize the problems experienced by individuals, and promote a more comfortable lifestyle.
AtıfScopus23WoS23OpenAlex24İncele - MakaleYalnız künye2023Scopus SJRQ2The effect of guided imagery applied on geriatric orthopaedic patients on preoperative anxiety and comfort
Gunes, Huseyin; Saritas, Serdar; Ozdemir, Ahmet; Bulbul, Ali Savas
Background: This study was designed to examine the effect of guided imagery applied to geriatric orthopaedic patients on preoperative anxiety and comfort. Methods: This study was conducted as a randomized controlled trial. The population of the study consisted of geriatric patients treated in the orthopaedics and traumatology clinic of a university hospital. The sample consisted of 80 patients, including the experimental group (n = 40) and the control group (n = 40). Personal Descriptive Form, The State–Trait Anxiety Inventory (STAI) and General Comfort Scale were used as data collection tools. Results: After the guided imagery application, it was determined that the anxiety of the experimental group decreased statistically significantly, and their comfort improved (P < 0.05). Conclusion: After the imagery, it was determined that the patients in the experimental group had a decrease in their anxiety level and an improvement in their comfort. Since it is a low-cost and easily accessible method, applying imagery in the preoperative period is recommended.
AtıfScopus5WoS5OpenAlex5İncele - MakaleAçık Erişim2023Scopus SJRQ2Efficient bio-catalytic production of enentiopure (S)-(4-chlorophenyl)(phenyl)methanol as a drug precursor by using a novel rotatable composite design-based optimization strategy
Tozlu, Nesrullah; Bülbül, Ali Savaş; Özdemir, Akın; Şahin, Engin
Asymmetric bioreductions catalyzed by biocatalysts have demonstrated great promise in manufacturing chiral alcohols. On the other hand, the synthesis of (S)-(4-chlorophenyl)(phenyl)methanol ((S)-2), precursors of L-cloprastine and carbinoxamine, still presents considerable challenges due to the inadequate substrate quantity and production process. In this work, a novel rotatable composite design-based optimization technique was used with the Lactobacillus paracasei BD101 biocatalyst for the asymmetric reduction of (4-chlorophenyl)(phenyl)methanone (1). Optimization conditions of the reaction were determined by the proposed optimization strategy as: pH=5.85, temperature=37 °C, incubation time=71 h, and agitation speed=120 rpm. The reaction conversion and the product of enantiomeric excess (ee) were also predicted to be 97% and 99%, respectively. In the experimental study performed under the determined optimized conditions, (S)-2 was obtained with >99% ee, >99% conversion, and 97% yield. In addition, 1 with the amount of 15.166 g was completely converted to (S)-2 (14.85 g, 97% isolated yield) on a high-gram scale. Notice that the manufacture of (S)-2 on a gram scale utilizing a biocatalyst and an optimization technique is demonstrated in this work for the first time. Finally, an economical, effective, and environmentally friendly biocatalytic process for the biocatalytic synthesis of (S)-2, which have antitussive and antiemetic properties and relax the bronchial muscle, has been demonstrated by the novel rotatable composite design-based optimization method.
AtıfScopus3WoS3OpenAlex2İncele - MakaleAçık Erişim2023Scopus SJRQ2Extended 2-D Magnetic Field Modeling of Linear Motor to Investigate the Magnetic Force Parameters of High-Speed Superconducting Maglev
Ozturk, Ufuk Kemal; Abdioglu, Murat; Ozkat, Erkan Caner; Mollahasanoglu, Hakki
A 2-D numerical finite-element model of a linear synchronous motor (LSM) is extended based on the magnetic field and moving mesh properties to investigate the magnetic flux and magnetic force characteristics of the high-speed electromagnetic levitation Maglev system, by using high-temperature superconductor (HTS) coils rather than lower current-carrying copper coils on the onboard unit and permanent magnets (PMs) on the ground. In this 2-D LSM model, the transient time-dependent solver is used to obtain the magnetic flux densities. Both the propulsion and levitation forces increased with increasing supercurrent Jc0 values indicating the advantage of using the superconducting windings in PM-LSM of Maglev vehicles as compared with the copper wires. It was also determined that, although the propulsion force is obtained on a comparable level with the studies in the literature, the lower levitation force issue than the electrodynamic suspension (EDS), despite the better propulsion to levitation force ratio, can be overcome by using the high flux trapping capacity bulk HTSs on the onboard unit together with the superconducting coils. The determined higher propulsion force in this PM-LSM Maglev model indicates that the Maglev vehicle can reach higher velocities in a short distance, and thus, this vehicle can be effectively used in short-distance travels in addition to the long-distance transportation. On the other hand, since the EDS system to be accelerated in a certain time interval via conventional wheels to achieve sufficient levitation, PM-LSM system can be integrated into the EDS Maglev system to ensure higher acceleration in a short time interval in addition to the higher levitation and propulsion force performances.
AtıfScopus10WoS10OpenAlex8İncele