Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(46)
- Kulakaç, Nurşen(21)
- Aydin, Aydanur(16)
- Demir, Selim(16)
- Tuncer, Metin(16)
- Topal, Fevzi(15)
- Turan, Ibrahim(15)
- Yilmaz, Coskun(14)
- Bayrakdaroglu, Serdar(12)
- Koçak, Tevfik(11)
- Aliyazicioglu, Yuksel(10)
- Gulcin, Ilhami(10)
- Ozturk, Samet(10)
- Topal, Meryem(10)
- Ceylan, Halil Ibrahim(9)
- Ceylan, Levent(9)
- Kilinc, Kagan(9)
- Mentese, Ahmet(9)
- Ozdes, Duygu(9)
- Tuncer, Gülsüm Zekiye(9)
- Duran, Celal(8)
- Emirza, Elif Güzide(8)
- Yaman, Serap Ozer(8)
- Yılmaz, Coşkun(8)
- Baltacı, Cemalettin(7)
- Demirağ, Hatice(7)
- Hintistan, Sevilay(7)
- Kaya, Feridun(7)
- Küçük, Murat(7)
- Ürkek, Bayram(7)
- Şengül, Mustafa(7)
- Bayrakdaroğlu, Serdar(6)
- Deger, Orhan(6)
- Genc, Berna(6)
- Gül, Abdulkadir(6)
- Gülçin, Ilhami(6)
- Günen, Mehmet Akif(6)
- Gürsoy, Ayla(6)
- Kurnaz, Muammer(6)
- Supuran, Claudiu T.(6)
Yayınlar
- MakaleAçık Erişim2024Scopus SJRQ1The impact of surgical intervention on religious coping, psychological well-being, and pain levels in older adult patients: A quasi-experimental study
Daştan, Buket; Kulakaç, Nurşen
Aim: This study aimed to determine the impact of surgical intervention on religious coping, psychological well-being, and pain levels in older adult patients. Method: The data of the study, which used a one-group pretest-posttest quasi-experimental design without a control group, was collected between July 1, 2023, - January 30, 2024. Data collection involved the use of a Personal Information Form, the Religious Coping Scale, the Psychological Well-Being Scale, and the Visual Analog Scale. Results: The results revealed a significant increase in psychological well-being and positive religious coping after surgical intervention compared to presurgical levels (p < 0.001). Multiple linear regression analysis revealed that male gender, younger age, enhanced psychological well-being, and positive religious coping were identified as factors contributing to a reduction in postsurgical pain levels. Conclusion: The study's results indicate that surgical intervention serves as a significant variable influencing psychological well-being and religious coping among older adult patients.
AtıfScopus2WoS1OpenAlex2
İncele - MakaleYalnız künye2024Scopus SJRQ2The effect of anthropometric measurements and muscle endurance of the trunk and lower extremities on anatomic body awareness in healthy individuals with different levels of physical activity
Koca, Rabia; Şen, Müşerref Ebru
Background: The interaction between anthropometric measurements and muscular endurance and how these factors manifest in anatomical body awareness have not yet been fully investigated. It was aimed to examine the relationship between physical activity, body anthropometric measurements and endurance and anatomical body awareness in healthy individuals. Materials and methods: A total of 217 individuals aged 19–40 participated in the study. Participants were categorized into inactive (n = 65), minimally active (n = 80), and sufficiently active (n = 72) groups based on the international physical activity questionnaire (IPAQ). Anthropometric measurements including shoulder, abdomen, waist, and hip circumferences were taken. Participants’ trunk muscle endurance and lower extremity endurance was assessed through various tests. Anatomic body awareness was evaluated using the Body Awareness Questionnaire (BAQ) with established validity. Results: While no significant difference in shoulder circumference measurements was found between the inactive and minimally active groups (p > 0.05), the sufficiently active group showed significantly higher shoulder circumference measurements compared to the other groups (p < 0.05). Significant differences were observed among all endurance tests between the groups (p < 0.05). Participants’ body endurance increased significantly with higher activity levels. Moreover, anatomic body awareness exhibited significant variation among the three groups (p < 0.05), with the sufficiently active group having the highest level of anatomic body awareness. Positive correlations were found between all endurance tests and anatomic body awareness (p < 0.05), as well as a positive correlation between physical activity levels and anatomic body awareness (p < 0.05). Conclusion: It is suggested that physical performance and endurance increase anatomical body awareness when applied with appropriate treatment methods, can be applied for a healthier life and can be an additional application in the clinical environment.
- DüzeltmeAçık Erişim2024Scopus SJRQ1Correction to: Evaluation of Spiritual Care and Well-Being Levels of Individuals Diagnosed with Lung Cancer in Turkey (Journal of Religion and Health, (2024), 63, 5, (3636-3659), 10.1007/s10943-024-02088-3)
Çakmak, Seher; Doğan, Melike Demir; Selim, Nisanur; Kalleci, Gülse Nur
In this article, the 1st and 6th paragraphs in the “Discussion” section contain several errors. The corrected paragraphs are given below. This study aimed to assess the spiritual well-being levels and spiritual care needs of individuals diagnosed with lung cancer. The findings revealed that the patients exhibited high spiritual well-being levels, with the “harmony with nature” sub dimension scoring particularly high in relation to spiritual well-being. This aligns with several studies which reported high spiritual well-being of cancer patients (Martins et al., 2020; Rabow & Knish, 2015).” The study identified high spiritual needs among the patients, with the specific subdimension “informing them about their health” obtaining the highest scores. Notably, in the current study, it was observed that patients’ needs in terms of “informing them about their health” increased, deviating from the emphasis on love, support, and bonding seen in other studies (Kırca et al., 2023; Shi et al., 2023). This divergence is thought to be linked to differences in the disease stage. The original article has been corrected.
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2024Scopus SJRQ2Evaluation of Spreadable Kefir Produced from Different Milks in Terms of Some Quality Criteria
Aktaş, Haktan; Meral Aktaş, Hacer; Ürkek, Bayram; Şengül, Mustafa; Çetin, Bülent
Kefir, which has many beneficial effects on health, is one of the most consumed fermented milk products worldwide. It is important to increase consumption of the fermented product for public health. In this study, it was aimed to increase the beneficial effects of kefir on public health. Therefore, kefirs produced from different types of milk (cow, buffalo, sheep, and goat) were concentrated, and obtained spreadable kefir samples were investigated in terms of their microbiological characteristic (lactic bacilli, lactic cocci, yeasts and moulds, total bacteria, and coliform bacteria), benzoic acid content, physicochemical properties (fat, total solid, ash content, acidity, pH, syneresis, viscosity, colour, and rheological properties), and sensory characteristic. It was determined that APC, lactic bacilli, lactic cocci, and yeast counts of the concentrated kefir samples changed between 6.90 and 8.64, 6.89 and 8.61, 7.42 and 8.72, and 2.17 and 5.39 log CFU/g, respectively, during storage. Mould and coliform bacteria were not detected in the samples. The concentrated kefir samples contained benzoic acid in the range of 18.30–119.58 mg/L. Results from this study showed that type of milk caused differences on APC, lactic bacilli, lactic cocci and yeast count, total solids, ash, fat, acidity, pH, syneresis, colour, viscosity and rheological parameters, and benzoic acid content. In addition, milk type affected sensory properties of the kefirs. Concentrated kefirs produced from cow and buffalo milk were the most liked by panellists. Finally, it was determined that concentrated kefir was favoured as a new product by most of the panellists.
AtıfScopus12WoS12OpenAlex14İncele - MakaleAçık Erişim2024Scopus SJRQ3Characterization of Water-Soluble Extracellular Polysaccharide from Aeribacillus pallidus IM17
Genc, Berna; Tunç, Merve Tuğçe; Adiguzel, Ahmet
The production of the extracellular polysaccharide from the thermophilic bacterium Aeribacillus pallidus was carried out in the study. The polysaccharide was isolated and characterized by means of GC–MS, FT-IR, DSC, and XRD analyses. The rheological, foaming, and emulsifying properties of the polysaccharide were determined. Using a sucrose-rich medium, 27.1 mg dried EPS/100 mL was obtained with 94% carbohydrate and 1.5% protein. The monosaccharide profile of water-soluble EPS-IM17 was composed of rhamnose, arabinose, xylose, mannose, glucose, and galactose. The foaming capacity and stability of EPS-IM17 were 26.67% (± 4.71) and 40.01% (± 4.95), respectively, and the foaming stability was not affected by time. The emulsification index of EPS-IM17 was 64.54 (± 8.71) and decreased to 38.47 (± 10.44) after 24 h. EPS-IM17 had a crystalline structure. Solutions at different concentrations (10, 20, 40 mgmL-1) showed pseudoplastic behavior. In conclusion, this report could be a lead study for the use of Aeribacillus pallidus extracellular polysaccharide for different applications.
AtıfScopus5WoS5İncele - MakaleAçık Erişim2024Scopus SJRQ2Effect of micro-arc oxidation coatings with graphene oxide and graphite on osseointegration of titanium implants-an in vivo study
Tekin, Bahar; Dundar, Serkan; Tekin, Samet; Emine Sukuroglu, Ebru; Khurshid, Zohaib; Ezgi, Yusuf; Demirci, Fatih; Faheemuddin, Muhammad
Background: This in vivo study evaluated the effect of graphene oxide and graphite coatings, coupled with the micro-arc oxidation (MAO) surface roughening technique, known for their mechanical strength, chemical stability, and antibacterial properties. The main objective was to assess the degree of improvement in osseointegration of titanium implants resulting from these interventions. Materials and methods: In this study, 32 female rats were utilized and randomly allocated into four groups (n = 8 each): machined surface titanium implants (control), those roughened by the MAO method, those coated with graphene oxide-doped MAO, and those with a graphite-doped MAO coating. Titanium implants were surgically placed in the right tibia of the rats. Rats undergoing no additional procedures during the 4-week experimental period were sacrificed at the end. Then, the implants and surrounding bone tissues were separated and embedded in acrylic blocks for reverse torque analysis. Using a digital torque device, the rotational force was applied to all samples using a hex driver and racquet until implant separation from the bone occurred, with the corresponding values recorded on the digital display. Then, statistical analysis was performed to analyze the data. Results: No statistically significant difference between the groups was observed in the biomechanical bone–implant connection levels (N/cm) (P = 0.268). Post-hoc tests were not required because no discernible differences were identified between the groups. Conclusion: Within the scope of this study, implants treated with the MAO method, along with those coated with graphene oxide- and graphite-doped MAO method, did not exhibit significant superiority in terms of osseointegration compared to machined surface titanium implants.
AtıfScopus9WoS8OpenAlex10İncele - MakaleYalnız künye2024Scopus SJRQ2Sulfonamide derivatives with benzothiazole scaffold: Synthesis and carbonic anhydrase I–II inhibition properties
Öztürk, Cansu; Kalay, Erbay; Gerni, Serpil; Balci, Neslihan; Tokali, Feyzi Sinan; Aslan, Osman Nuri; Polat, Emrah
The secondary sulfonamide derivatives containing benzothiazole scaffold (1–10) were synthesized to determine their inhibition properties on two physiologically essential human carbonic anhydrases isoforms (hCAs, EC, 4.2.1.1), hCA I, and hCA II. The inhibitory effects of the compounds on hCA I and hCA II isoenzymes were investigated by comparing their IC50 and Ki values. The Ki values of compounds (1–10) against hCA I and hCA II are in the range of 0.052 ± 0.022–0.971 ± 0.280 and 0.025 ± 0.010–0.682 ± 0.335, respectively. Some of these inhibited the enzyme more effectively than the standard drug, acetazolamide. In particular, compounds 5 and 4 were found to be most effective on hCA I and hCA II.
AtıfScopus13WoS11OpenAlex13İncele - MakaleYalnız künye2024Scopus SJRQ2Is environment destiny? Spatial analysis of the relationship between geographic factors and obesity in Türkiye
Yılmaz, Hacı Ömer; Günen, Mehmet Akif
This study aims to evaluate the relationship of geographical factors, including precipitation, slope, air pollution and elevation with adult obesity prevalence in Türkiye (TR) using a cross-regional study design. Ordinary least squares (OLS) and geographically weighted regression (GWR) were performed to evaluate the spatial variation in the relationship between all geographic factors and obesity prevalence. In the model, a positive relationship was found between obesity prevalence and slope, whereas a negative significant relationship was determined between obesity prevalence and elevation (p < 0.05). These results, revealing spatially varying associations, were very useful in refining the interpretations of the statistical results on adult obesity. This research suggests that geographical factors should be considered as one of the components of the obesogenic environment. In addition, it is recommended that national and international strategies to overcome obesity should be restructured by taking into account the geographical characteristics of the region.
AtıfScopus4WoS4OpenAlex5İncele - MakaleAçık Erişim2024Scopus SJRQ2Impact of Preoperative Progressive Relaxation Exercises on Postoperative Pain, Comfort, and Recovery : A Randomized Controlled Trial
Kulakaç, Nurşen; Sayılan, Aylin Aydın
This randomized controlled trial aimed to investigate the impact of preoperative progressive relaxation exercises on postoperative pain, comfort, and quality of recovery. The study was conducted between June and November 2023, involving 68 patients undergoing surgical intervention and hospitalized in the surgical clinic. Data were collected using the Personal Information Form, the Visual Analog Scale (VAS)-Pain, the Perianesthesia Comfort Scale, and the Quality of Recovery Questionnaire. At the sixth postoperative hour, no significant difference was observed in pain levels between the experimental and control groups (P > .05). However, the VAS scores for the experimental group at the 12th and 24th postoperative hours were significantly lower than those of the control group (P < .001). Furthermore, 24 hours postoperatively, the experimental group demonstrated significantly higher quality of recovery (P < .001) and comfort levels (P < .001) than the control group. This study concludes that patients engaged in relaxation exercises exhibited lower VAS scores and higher levels of recovery and comfort.
AtıfScopus2WoS1OpenAlex3İncele - MakaleYalnız künye2024Scopus SJRQ2The Effect of Video-Based Simulation Training on Nursing Students' Motivation and Academic Achievement A Mixed Study
Koçan, Sema; Kulakaç, Nurşen; Aktug, Cemile; Demirel, Sevgül
This study was conducted to determine the effect of video-based simulation education on nursing students' motivation and academic achievement. The research was designed in a mixed model. A quasi-experimental method with a pretest-posttest control group was used for the quantitative part, and the descriptive phenomenology approach was used as the qualitative research method. The sample of the study consisted of second-year nursing students in two state universities in eastern Turkey. The data were collected with the Student Information Form, the Academic Achievement Test, and the Motivation Resources and Problems Scale using Google Forms Web application. Qualitative data were collected through online semistructured interview forms and focus group interviews. According to the results, the posttest academic achievement and Motivation Resources and Problems Scale mean scores of the students in the intervention group were significantly higher than those of the control group (P < .05). In the analysis of the qualitative, three main themes emerged: We felt fortunate that it increased information retention,” “We felt like we were in real practice environment,” and “It made us feel that we were nurses.” The results showed the use of video-based simulation can be suggested as a strategy to promote classroom teaching and engage students.
AtıfScopus5WoS3OpenAlex4İncele - MakaleAçık Erişim2024Scopus SJRQ1Enhancing brain tumor classification through ensemble attention mechanism
CELIK, Fatih; CELIK, Kemal; CELIK, Ayse
Brain tumors pose a serious threat to public health, impacting thousands of individuals directly or indirectly worldwide. Timely and accurate detection of these tumors is crucial for effective treatment and enhancing the quality of patients’ lives. The widely used brain imaging technique is magnetic resonance imaging, the precise identification of brain tumors in MRI images is challenging due to the diverse anatomical structures. This paper introduces an innovative approach known as the ensemble attention mechanism to address this challenge. Initially, the approach uses two networks to extract intermediate- and final-level feature maps from MobileNetV3 and EfficientNetB7. This assists in gathering the relevant feature maps from the different models at different levels. Then, the technique incorporates a co-attention mechanism into the intermediate and final feature map levels on both networks and ensembles them. This directs attention to certain regions to extract global-level features at different levels. Ensemble of attentive feature maps enabling the precise detection of various feature patterns within brain tumor images at both model, local, and global levels. This leads to an improvement in the classification process. The proposed system was evaluated on the Figshare dataset and achieved an accuracy of 98.94%, and 98.48% for the BraTS 2019 dataset which is superior to other methods. Thus, it is robust and suitable for brain tumor detection in healthcare systems.
AtıfScopus42WoS21OpenAlex42İncele - MakaleAçık Erişim2024Scopus SJRQ2A new species of Buresilia (Opiliones, Phalangiidae) from Turkey
Kurt, Kemal; Kurt, Pinar
A new harvestman species, Buresilia gumushanensis sp. nov. (Opiliones: Phalangiidae), is described based on male specimens collected from Gümüşhane province, Turkey. Detailed descriptions, diagnostic features and pictures of the new species are provided, together with mitochondrial cytochrome c oxidase subunit I (COI) sequences. The phylogenetic tree constructed using the COI gene region revealed the phylogenetic position of the genus Buresilia within the family Phalangiidae. In addition, the new species is compared with known species of the genus Buresilia.
- MakaleAçık Erişim2024Scopus SJRQ2Enterococcus durans SL70, a Novel Exopolysaccharide Producer from Traditional Sourdough Fermentation of Einkorn (Triticum monococcum L. ssp. monococcum)
Genc, Berna; Karatas, Seyda Merve; Tunç, Merve Tuğçe
Research background. Given the potential of microbial exopolysaccharides from lactic acid bacteria in various industrial processes, alternative sources for the isolation of lactic acid bacteria are highly topical. In this study, we used a traditional sourdough from einkorn (Triticum monococcum L. ssp. monococcum) as a source of lactic acid bacteria for the isolation, identification and determination of exopolysaccharide producers. Experimental approach. The sourdough was prepared from einkorn according to the traditional method. Lactic acid bacteria were isolated and purified using the single colony technique on MRS and M17 media. The isolates were characterised using matrix-assisted laser desorption ionization-time of flight mass (MALDI-TOF) spectrometry. All isolates were analysed for extracellular polysaccharide production and one isolate was selected for purification and characterisation of its polysaccharide. Results and conclusions. The isolates were identified as Lactobacillus plantarum, L. paraplantarum, L. brevis, Pediococcus pentosaceus, Enterococcus faecium and E. durans. The production of exopolysaccharides by all lactic acid bacteria was evaluated and it was found that all strains (except one) were capable of producing exopolysaccharides. One polysaccharide (EPS-SL70) was purified from the isolates of E. durans SL70. This anionic heteropolysaccharide had, in addition to the carbohydrate backbone, a protein structure that did not contain nucleic acid. The carbohydrate backbone consisted of mannose, glucose, rhamnose, arabinose, xylose and galactose. Novelty and scientific contribution. The microbial flora of traditional einkorn sourdough has been identified in this study and represents the first report on the exopolysaccharide production by lactic acid bacteria in traditional einkorn sourdough. Additionally, Enterococcus durans from einkorn sourdough was identified as a new exopolysaccharide producer.
AtıfScopus3WoS2OpenAlex4İncele - MakaleAçık Erişim2024Scopus SJRQ1Evaluation of microbiological, antioxidant, thermal, rheological and sensory properties of ice cream fermented with kefir culture and flavored with mint (Menthaspicata L.)
Öztürk-Yalçın, Feyza; Ürkek, Bayram; Şengül, Mustafa
Kefir is a healthy fermented dairy product, while ice cream is one of the most consumed dairy products. In this research, ice cream was fermented using a commercial kefir culture and flavored with a mint aroma in different proportions: 0% (KI), 0.2% (KIM2), 0.4% (KIM4), and 0.6% (KIM6). The study investigated the microbiological, thermal, rheological, textural, compositional, and sensory properties as well as antioxidant activity of kefir ice cream samples during 45-day storage. The lactic bacilli, lactic cocci, and Leuconostoc counts of samples were >7 log CFU/g, while the yeast counts were <4 log CFU/g. The microbiological properties (except for yeast counts) of the samples were coherent with legal limits. Antioxidant values (except for samples KIM2 and KIM6) values did not indicate significant differences (p <.05). The pH and melting rate values of the samples decreased with the addition of mint flavor, while acidity values increased. The addition of mint aroma caused significant changes in the thermal properties of ice cream. The overrun, a*, WI, and hardness values of the samples decreased based on the mint flavor concentration, whereas the viscosity and rheological increased. Samples KI and KIM2 were scored higher than other samples for all sensory properties. As a result, fermented ice cream flavored (0.2% mint) with mint could be produced as a desirable dairy product with potential functional properties.
AtıfScopus8WoS6OpenAlex6İncele - MakaleAçık Erişim2024Scopus SJRQ2Investigation of nurses’ general attitudes toward artificial intelligence and their perceptions of ChatGPT usage and influencing factors
Tuncer, Gülsüm Zekiye; Tuncer, Metin
Purpose: This study aimed to investigate professional nurses’ general attitudes toward artificial intelligence, their knowledge and perceptions of ChatGPT usage, and the influencing factors. Methods: The population of the research consists of nurses who follow a social media platform account in Turkey. The sample of the study consisted of 288 nurses who participated in the study between December 2023 and March 2024. Data were collected through an account on a social media platform via Google Forms using the Information Identification Questionnaire for ChatGPT and Artificial Intelligence Programs and the General Attitudes to Artificial Intelligence Scale (GAAIS). Results: The mean scores obtained from the overall GAAIS and its Positive Attitudes subscale from the participants in this study were 67.54 ± 13.14 and 41.89 ± 11.24, respectively. Of the participants, 48.3% knew about ChatGPT and artificial intelligence programs. Of the participants, 27.8% used ChatGPT and artificial intelligence programs. Their scores for the Positive Attitude subscale were higher than were the scores of those who did not use such programs. Of the participants, 84.4% thought that nurses should be made aware of ChatGPT and artificial intelligence programs, 67% thought that the use of these programs would contribute to nurses’ professional development, 42.4% thought that the use of these programs would not reduce nurses’ workload, and 58.3% thought that the use of these programs would positively affect patient care. Conclusion: In this study, it can be said that nurses in Turkey have positive attitudes toward integrating ChatGPT and AI programs to improve patient outcomes and add them to nursing practices. Implications for nursing practice: The present study in which nurses’ attitudes toward the implementation of ChatGPT and artificial intelligence programs were investigated is expected to provide information for healthcare institutions, policy makers and artificial intelligence developers on the integration of ChatGPT and artificial intelligence into nursing practice. It is necessary to create environments that use AI technologies that reduce the nursing workload of nurses in the clinical area and positively affect the quality of patient care.
AtıfScopus47WoS47OpenAlex46İncele - MakaleYalnız künye2024Scopus SJRQ1Spatiotemporal analysis of transition probabilities of wet and dry days under SSPs scenarios in the semi-arid Susurluk Basin, Türkiye
Şan, Murat; Nacar, Sinan; Kankal, Murat; Bayram, Adem
Precipitation, especially in regions dominated by the Mediterranean climate, is one of the most critical parameters of the hydrological cycle and the environment affected by climate change. One the one hand, the transition probabilities of wet and dry days in precipitation occurrence are a relatively new topic, on the other hand these are essential in defining the regional climate. For the first time, spatiotemporal variations of transition probabilities of wet and dry days in the Susurluk Basin, northwestern Türkiye, dominated by a semi-arid Mediterranean climate and also having a mountain climate, were analyzed based on the observation (1979–2014) and future terms (2030–2059 as short and 2070–2099 as long), under four Shared Socioeconomic Pathways (SSPs) scenarios. To do this, statistical downscaling was performed for 14 general circulation models (GCMs) from the CMIP6. By applying an ensemble of four high-performing GCMs, four indices for transition probabilities of wet and dry, i.e., a dry day following a dry day (FDD), a wet day following a dry day (FDW), a dry day following a wet day (FWD), and a wet day following a wet day (FWW), were calculated, and their changes were determined statistically. Monotonic and partial trends of the indices were also analyzed. According to the results, the FDD will increase in water year and wet period and autumn in the future, especially for the long term, in the basin dominated by the FDD (75 % in water year). The risks are higher in the western part of the basin, where human activities are intense, as the FDD is higher in this part than other parts especially in summer (90–100 %) in SSP3-7.0 and SSP5-8.5 scenarios for the long term. So, the length of consecutive dry days in the wet period and water year will increase in the basin, thus increasing the likelihood of droughts. As for the intra-term trends, the FDD increases and the FWW decreases in the water year and seasons in SSP3-7.0 and SSP5-8.5, contrary to the observation term.
AtıfScopus20WoS19OpenAlex20İncele - MakaleAçık Erişim2024Scopus SJRQ1A robust chaos-inspired artificial intelligence model for dealing with nonlinear dynamics in wind speed forecasting
Barış, Caner; Yanarateş, Cağfer; Altan, Aytaç
The global impacts of climate change have become increasingly pronounced in recent years due to the rise in greenhouse gas emissions from fossil fuels. This trend threatens water resources, ecological balance, and could lead to desertification and drought. To address these challenges, reducing fossil fuel consumption and embracing renewable energy sources is crucial. Among these, wind energy stands out as a clean and renewable source garnering more attention each day. However, the variable and unpredictable nature of wind speed presents a challenge to integrating wind energy into the electricity grid. Accurate wind speed forecasting is essential to overcome these obstacles and optimize wind energy usage. This study focuses on developing a robust wind speed forecasting model capable of handling non-linear dynamics to minimize losses and improve wind energy efficiency. Wind speed data from the Bandırma meteorological station in the Marmara region of Turkey, known for its wind energy potential, was decomposed into intrinsic mode functions (IMFs) using robust empirical mode decomposition (REMD). The extracted IMFs were then fed into a long short-term memory (LSTM) architecture whose parameters were estimated using the African vultures optimization (AVO) algorithm based on tent chaotic mapping. This approach aimed to build a highly accurate wind speed forecasting model. The performance of the proposed optimization algorithm in improving the model parameters was compared with that of the chaotic particle swarm optimization (CPSO) algorithm. Finally, the study highlights the potential of utilizing advanced optimization techniques and deep learning models to improve wind speed forecasting, ultimately contributing to more efficient and sustainable wind energy generation. This robust hybrid model represents a significant step forward in wind energy research and its practical applications.
AtıfScopus58WoS55OpenAlex55İncele - MakaleAçık Erişim2024Scopus SJRQ2Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures
Demir Şahin, Demet; Eker, Hasan
In this study, Afşin Elbistan C-type fly ash (FA) was used, which protects against the sulphate reaction that damages concrete. The detrimental effects of post-reaction decrease with increasing fly ash fineness. The study used 10%, 30%, and 50% weight substitutes of cement. The fly ash was ground in a ball mill for 0, 10, 20, 30, 45, and 60 min, and Blaine fineness values of 1555, 1632, 2347, 2589, 2766, and 3433 cm2/g were obtained, respectively. The effect of the samples on the sulphate resistance was investigated by exposing the samples to 5% or 10% added sulphate solutions, and the compressive strength and ultrasonic pulse velocity of the concrete were tested. The compressive strength values obtained decreased with the increase in sulphate content, and the increase in the grinding time and the amount of substituted FA increased the compressive strength values. It was observed that weight loss increased with increasing sulphate content and decreased with the addition of FA with a high Blaine fineness. It was determined that as the Blaine fineness value increased, the sulphate content, FA substitution amount, and ultrasonic pulse speed decreased. This study was carried out to determine the effects of fly ash used at different fineness and replacement ratios on the performance and strength of concrete after exposure to external influences such as sulphate. The use of fly ash instead of cement will reduce the use of waste materials and natural resources and prevent environmental pollution. The cost of cement and concrete will be reduced.
AtıfScopus19WoS18OpenAlex23İncele - Derleme MakaleAçık Erişim2024Scopus SJRQ2Effect of eHealth Interventions on Symptom Management in CABG Surgical Patients: A Systematic Review
Aydin, Aydanur; Celik, Sevilay Senol
This study aimed to evaluate the effectiveness of eHealth interventions on symptom management outcomes of patients undergoing CABG surgery. A systematic review was performed on CINAHL, PubMed, Web of Science, Ovid MEDLINE, and Scopus from 2006 to June 2022. The Joanna Briggs Institute's evaluation tools for RCT and quasi-experimental studies were used to assess the methodological quality of the publications included in this review and to determine the extent to which each publication addressed the possibility of bias in its design. The raters' agreement was determined by using Cohen's kappa test, which yielded a kappa coefficient of 0.51. (PROSPERO registration number: CRD42023398498). A systematic analysis of 11 publications involving 2.586 patients showed that the eHealth intervention effectively increased activity and self-management. eHealth interventions, which are also effective in the management of psychological problems, had results that were partially effective in pain management and effective in quality of life. Digital healthcare has become an important component of patient care. Nurses providing care should be aware that eHealth interventions are showing promising results in patient care.
AtıfScopus3WoS3OpenAlex3İncele - Derleme MakaleAçık Erişim2024Scopus SJRQ1Decoding coffee cardiometabolic potential: Chemical composition, nutritional, and health relationships
Karagöz, Mustafa Fevzi; Koçyigit, Emine; Koçak, Tevfik; Sirin, Aycil Ozturan; Icer, Mehmet Arif; Agagündüz, Duygu; Coreta-Gomes, Filipe
Coffee is one of the most consumed beverages worldwide, recognized for its unique taste and aroma and for its social and health impacts. Coffee contains a plethora of nutritional and bioactive components, whose content can vary depending on their origin, processing, and extraction methods. Gathered evidence in literature shows that the regular coffee consumption containing functional compounds (e.g., polysaccharides, phenolic compounds, and melanoidins) can have potential beneficial effects on cardiometabolic risk factors such as abdominal adiposity, hyperglycemia, and lipogenesis. On the other hand, coffee compounds, such as caffeine, diterpenes, and advanced glycation end products, may be considered a risk for cardiometabolic health. The present comprehensive review provides up-to-date knowledge on the structure-function relationships between different chemical compounds present in coffee, one of the most prevalent beverages present in human diet, and cardiometabolic health.
AtıfScopus12WoS11İncele