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- MakaleAçık Erişim2025Scopus SJRQ3COMPARISON OF INSTANT EFFECT OF LUMBAL AND SACROILAC SPINAL MANIPULATION ON FLEXIBILITY AND JUMPING PERFORMANCE IN PROFESSIONAL SOCCER PLAYERS
Dönmez, Beyza; Hatik, Sefa Haktan; Büyükkirli, Ilker Can; Aydin, Emine Busra
Recent evidence suggests that spinal manipulation can acutely improve mobility and lower-limb performance. This study compared the acute effects of lumbar and sacroiliac chiropractic manipulation on flexibility nd jump performance. Forty-five healthy male participants were randomly assigned to three groups: a Lumbar Manipulation Group (LMG; n = 15), a Sacroiliac Manipulation Group (SMG; n = 15), and a Control Group (n = 15). Flexibility was assessed using the V-Sit and Reach test, while performance was evaluated with vertical and horizontal jump tests. Lumbar manipulation was applied to the dysfunctional lumbar segment in the LMG, and sacroiliac joint manipulation was applied to the dysfunctional sacroiliac region in the SMG. No intervention was performed in the control group. Both manipulation techniques resulted in significant acute improvements in mobility and jump performance compared with the control group (p < 0.05), with the greatest improvement observed in vertical jump height (p = 0.001). No significant differences were found between the LMG and SMG. Spinal manipulation to the lumbar and sacroiliac regions appears to produce acute improvements in mobility and lower-limb power. These findings suggest that spinal manipulation may serve as a short-term performance-enhancing intervention.
- MakaleAçık Erişim2013Evaluation of cardiovascular risk factors among university students in Turkey: a cross-sectional survey
Kutlu, Rasim; Memetoglu, Mehmet Erdem
Background - Recent data indicate increasing rates of mortality from cardiovascular (CV) disease in Turkey. This study aimed to evaluate CV disease risk factors among university students in Northern Turkey. Methods - In this cross sectional descriptive study, 302 students were randomly recruited (171 females (57%) and 131 males (43%), mean age of 20 +/- 2.1 years). Blood glucose, cholesterol profile (total, high density lipoprotein (HDL) and low density lipoprotein (LDL) cholesterols), triglyceride, glycosylated haemoglobin, resting blood pressure, and body mass index were measured using standard protocols. All participants were asked to complete a questionnaire including questions on lifestyle, genetic predisposition, smoking habit, and psychosocial factors. Results - The mean systolic and diastolic blood pressure of students were 127.1 +/- 13.5 mmHg and 78.3 +/- 12.4 mmHg. The mean values were 98.4 +/- 14.2 mg/dL for fasting blood glucose value, 5.4 +/- 0.4 for HbA(1c), 80.0 +/- 10.3 beats/min for heart rate, for total cholesterol 199.1 +/- 24.6 mg/dL, 43.8 +/- 9.9 mg/dL for HDL, 114.7 +/- 24.1 mg/dL for LDL, 199.1 +/- 24.6 mg/dL for trygliceride, 24.8 +/- 3.6 kg/m(2) for body mass index, 97.6 +/- 17.9 cm for waist circumference. No significant difference was observed between gender according to CV risk factors' values statistically. It was observed that 111 (36.8%) students were overweight, 32 (10.6%) were obes. About 135 (44.0%) of students had abnormally unacceptable WC value. Smoking habit was seen in 130 (43.0%) students [73 (24.2%) male and 57 (18.9%) female]. Conclusion - A substantial proportion of Turkish students were overweight or obese, and had smoking habit. Our results underscore the need to implement health promotion programmes and perform large-scale epidemiological studies within the general Turkish young adult population.
AtıfWoS5OpenAlex12
İncele - BildiriYalnız künye2016Scopus SJRQ1A research on thermophilic bacteria and their enzyme profile in different geothermal regions of Turkey
Arslan, S.; Genc, B.; Adiguzel, G.; Adiguzel, A.
- BildiriYalnız künye2023Anomaly Detection in Predicted Water Treatment Data using Hybrid CNN-LSTM Network Model
Özgenç, Busra; Ayas, Selen; Dogan, Ramazan Ozgur; Çavdar, Bora; Sahin, Ali Klvanc; Ayas, Mustafa Sinasi
Water treatment systems are among the industrial control systems where it is essential to detect anomalies accurately and efficiently due to the potential threat to public health. With advances in computer science, machine learning models have been successfully used in the anomaly detection process in recent years. In this paper, a hybrid CNN-LSTM network model is proposed to detect anomalies in water systems. Using a statistical window-based anomaly detection approach, the performance of the proposed model in detecting different types of attacks is analyzed on the open SWaT dataset. Experimental results show that the precision, recall and F1-score values of the proposed model are 0.994, 0.973 and 0.983, respectively, and can be successfully used to detect anomalies in water treatment systems.
AtıfWoS1OpenAlex5İncele - MakaleAçık Erişim2020Knowing and Use Situations of Hemovigilance System in the Scope of Blood Transfusion Safety of Nurses: Rural Example
Demirag, Hatice; Hintistan, Sevilay
Objective: This study was carried out to determine the nurses' knowledge of the hemovigilance system and their use of it, within the scope of blood transfusion safety. Methods: The sample of this descriptive and cross-sectional study consisted of all nurses (n=65) working at Gumushane State Hospital. The data were collected with Structured Question Form Number, percentage, mean, Continuity Correction, Pearson Chi-Square and Fisher Exact tests were used to evaluate the data. Results: Of the nurses, 90.8% were women, the average age was 27.01 +/- 5.16 (20-48) years and 86.1% had undergraduate or higher education. Of the nurses, 84.6% knew that they were supervised by a hemovigilance nurse. Nurses (43.1%) who received training on the hemovigilance system had higher levels of knowing that each unit of blood taken from the donor follows the final destination (100.0%) than the nurses who did not receive training (p <0.05). The nurses who knew that they were supervised during transfusion related processes performed the following steps at a higher rate than those who did not know that they were inspected (p <0.05): Wearing gloves before the application (100.0%), using appropriate branches in children (87.3%), obtaining written consent before blood transfusion (100.0%), and completing the blood transfusion within a maximum of four hours (87.3%) were higher than nurses who did not know that they were supervised (p <0.05). Also; the majority of nurses (90.8%) were determined to use the current procedures for blood transfusions. Conclusion: In line with the findings of the study, it was stated that the nurses who were educated about the hemovigilance system and who knew that they were supervised by the hemovigilance nurse, had high hemovigilance system usage.
AtıfWoS2OpenAlex9TR Dizin2
İncele - MakaleAçık Erişim2025THE IMPACT OF ESG CONTROVERSIES ON THE MARKET VALUE IN THE ENERGY SECTOR
Sayilir, Ozlem; Chelery Komath, Muhammed Aslam; Karaaslan, Ibrahim
The energy sector has relatively higher exposure to scandals and controversial publicity due to the nature of industry operations. AThus, this study focuses on the energy sector to evaluate the impact of ESG (Environmental, Social and Governance) controversy scores of LSEG database on market value of firms. We investigate the relationship between ESG controversies and the market value of 393 firms using annual data from 2013 to 2022 through Dynamic Panel Data system GMM Regression Models. The findings of the study reveal that the market value of firms in the previous period has had a statistically significant positive effect on the market value of firms in the current period. Our analysis reveals a positive and statistically significant association between Governance Controversy scores and market value. Our findings suggest governance controversies have the most direct and measurable impact on firm value in the energy sector, possibly due to their stronger influence on operational performance and investor confidence. Implications of the study may help investors and policymakers to make decisions that prioritize ESG considerations in the energy sector as firms with fewer governance controversies are rewarded by investors with higher valuations.
AtıfWoS1OpenAlex2İncele - MakaleAçık Erişim2026The Art of Dialectic (Jadal) in Ibn al-Mutahhar al-Hillī
Evmes, Adem; Akbay, Yunus Emre; Akyüz, Turgut
Al-Hilli, known as a Shii theologian and legal theorist, was a versatile scholar of the thirteenth century who authored numerous works on the philosophical sciences. In his writings, al-Hilli carefully examined ontological problems and methodological questions, systematically discussed the problem of knowledge, and devoted considerable attention to the science of logic. This article addresses al-Hilli's views on the art of dialectic (jadal), which he considered necessary for those who have not yet attained the level of demonstration (burhan), which ranks second in importance among the five arts, and on which no dedicated study has hitherto been undertaken. The aim of the article is to determine, on the basis of his logic works composed within the Peripatetic (Mash'sha'i) tradition, the extent to which al-Hilli was influenced by earlier logicians in his understanding of jadal and the respects in which he diverged from them. The scope of the article is confined to three of al-Hilli's works: his commentary on the logic section of Nasir al-Din al-Tusi's Tajrid al-i'tiqad, entitled al-Jawhar al-nadid; his commentary on al-Katibi's logical treatise al-Shamsiyya, entitled al-Qawa'id al-jaliyya; and his independent composition al-Asrar al-khafiyya fi al-'ul & umacr;m al-'aqliyya. These works were examined through a single-subject scanning method, whereby passages containing data pertaining to the components of dialectical theory-including its definition, premises, structure, and application-were identified and analysed. In this context, recourse was made to the works of logicians who had written on jadal prior to al-Hilli, among them Aristotle, al-Farabi, Ibn Sina, al-T & umacr;si, and al-Katibi, with particular attention given to a comparative analysis of the explanations offered by Ibn Sina and al-Hilli. It was ultimately established that al-Hilli followed both the Aristotelian and the Peripatetic logical tradition in his theory of jadal, and that he was especially influenced by Ibn Sina.
- MakaleYalnız künye2014Scopus SJRQ3Assessing the Impacts of Seasonal Variations on Predicting Leachate Generation in Gumushane Open Dump Using Water Balance Method
Nas, Salim Serkan; Nas, Evin
Leachate quality varies depending on many factors such as the depth and the content of solid waste, seasonal variations in solid waste, and the duration of storage of solid waste; design and operation of storage space; geological and hydrogeological characteristics of storage area; and environmental interaction of leachate, which affect each other. One of the two major sources of leachate is the moisture content of the waste stored and the other is the mass of water entering the storage area from outside. A major part of the mass of water entering the storage area from outside is the infiltration of rain water through the storage area. The purpose of this study is to assess the seasonal variation in leachate of Gumushane (Central) open dump area using the 'water balance method' for the determination of the factors affecting the seasonal variation in leachate of landfill, which particularly holds a higher risk of contaminating the environment. In addition, some of the measures to be taken in solid waste storage areas in order to minimize the mass of leachate are presented.
AtıfWoS1İncele - BildiriYalnız künye2014Scopus SJRQ2The effectiveness of the black mulberry molasses in prevention of radiotherapy-induced mucositis: a randomised controlled study in head and neck cancer patients
Demir, M.; Can, G.; Meral, R.
AtıfOpenAlex2İncele - BildiriAçık Erişim2013Scopus SJRQ1Evaluation of Cardiovascular Risk Factors Among University Students in Northern Turkey: A Cross-sectional Survey
Kutlu, Rasim; Memetoglu, Mehmet Erdem
AtıfWoS1OpenAlex1İncele - MakaleYalnız künye2021Scopus SJRQ3FEAR, ANXIETY, BURNOUT, AND INSOMNIA LEVELS OF HEALTHCARE WORKERS DURING COVID-19 PANDEMIC IN TURKEY
Yilmaz, Yavuz; Erdogan, Ali; Bahadir, Erdi
Background: This study aims to assess fear, anxiety, anxiety sensitivity, burnout, and insomnia of healthcare workers (HCWs) during novel coronavirus-2019 (COVID-19) outbreak and to identify their relation to sociodemographic and clinical characteristics. Subjects and methods: Totally 600 HCWs were included in this cross-sectional study. A Sociodemographic Data Form, Coronavirus Anxiety Scale (CAS), Fear of COVID-19 Scale (FCV-19S), Anxiety Sensitivity Index-3 (ASI-3), Maslach Burnout Inventory (MBI), and Insomnia Severity Index (ISI) were used. Results: Of participants, 364 were females and 236 were males with a mean age of 33.49 +/- 7.29 years. About 95.3% of HCWs had a fear of infecting their loved ones. Mean MBI and ISI scores were significantly higher among HCWs working in COVID-19 clinics and intensive care units (p=0.000; p=0.039). Mean CAS, FCV-19S, MBI, and ISI scores were significantly higher in women than men (p=0.000; p=0.000; p=0.027; p=0.005). Mean CAS and ISI scores were significantly higher among nurses (p=0.008; p=0.004), while mean ASI-3 of the other HCWs and MBI scores of physicians were significantly higher (p=0.009; p=0.000). Conclusion: The COVID-19 pandemic is a major health issue associated with psychiatric illnesses in HCW subgroups with distinct sociodemographic characteristics. It is of utmost importance to develop individualized preventive and therapeutic psychiatric services for HCWs.
AtıfWoS14
İncele - MakaleAçık Erişim2011Scopus SJRQ2First Report of a Trilobite in the Carboniferous of Eastern Pontides, NE Turkey
Kandemir, Raif; Lerosey-Aubril, Rudy
The pre-Mesozoic basement of the Eastern Pontides consists of a Permo-Carboniferous sedimentary sequence including the Catalcesme and Hardisi formations. The Catalcesme Formation has yielded rich assemblages of fusulinids, corals, gastropods, brachiopods, bryozoans, algae, conodonts and plants. Hitherto trilobites were unknown from this formation; here we report the discovery of a pygidium from a dark grey limestone bed near the top. Trilobites are a minor component of benthic marine communities during the Late Pennsylvanian, and to our knowledge, the discovery of this pygidium constitutes the first report of their occurrence in deposits of this age in Turkey. The morphological characteristics of the specimen, especially the number of axial rings and pleural ribs and the well-defined border (Owens 1983), suggest that it probably belongs to an undescribed species of Ditomopyge Newell, 1931 (Ditomopyginae). It also exhibits a distortion of the posterior part of the axis, and a shortening (right side) or a fusion (left side) of some pleural ribs, which is tentatively interpreted as repaired injuries or the results of a developmental dysfunction.
AtıfWoS42OpenAlex38TR Dizin10İncele - MakaleYalnız künye2013Scopus SJRQ2Coronary Flow Reserve and Myocardial Performance Index in Newly Diagnosed Diabetic Patients
Kalkan, Gulhan Yuksel; Gür, Mustafa; Sahin, Durmus Yildiray; Baykan, Ahmet Oytun; Elbasan, Zafer; Kuloglu, Osman; Kivrak, Ali; Türkoglu, Caner; Arik, Osman Ziya; Çayli, Murat
BackgroundPatients with diabetes mellitus (DM) are at high risk of left ventricular (LV) dysfunction. A reduction of coronary flow reserve (CFR) has been demonstrated in diabetic patients without coronary artery stenosis. In this study, we investigated the association between LV myocardial diastolic and systolic functions and the CFR in newly diagnosed diabetic patients in the absence of coronary artery disease. MethodWe studied 88 patients (mean age 4910years) with newly diagnosed DM and 40 healthy control subjects (mean age 509years). All subjects underwent transthoracic echocardiography. The myocardial performance index (MPI) was determined by using pulsed-wave Doppler. The CFR was calculated as the hyperemic to resting coronary diastolic peak velocities ratio. ResultsPatients with diabetes had significantly longer mitral E-wave deceleration time and higher MPI value than control group (P=0.023 and P<0.001, respectively). The mean CFR was lower in diabetic patients compared with controls (P=0.001). The MPI was significantly correlated with CFR (r=-0.371, P<0.001), LV ejection fraction (r=-0.274, P=0.018) E/A ratio (r=-0.244, P=0.024), and glycosylated hemoglobin (HbA1c) (r=0.476, P<0.001). Multivariate regression analysis showed that MPI was independently associated with CFR (=-0.292, P<0.0001) and HbA1c level (=0.372, P<0.0001). ConclusionsThe MPI was independently associated with CFR in newly diagnosed diabetic patients. The decrease in CFR may cause LV systolic and diastolic dysfunction in asymptomatic diabetic patients.
AtıfWoS11OpenAlex10İncele - MakaleYalnız künye2022Evaluation of Serum Procalcitonin, Neutrophil-lymphocyte Ratio and Platelet-lymphocyte Ratio in Pregnancies with Threatened Abortion
Aydin, Sakine Merve; Taskömür, Aysun Tekeli
Objective: The etiology of Threatened Abortion is not clearly known. One of the hypotheses thought to play a role in the pathophysiology of threatened abortion is that bleeding occurring in threatened abortion causes the development of a chronic inflammatory reaction in the decidua. Because of this hypothesis, we aimed to evaluate the relationship between a threatened abortion and inflammatory markers procalcitonin, neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR). Methods: This is a prospective, controlled study. Serum procalcitonin, neutrophil-lymphocyte ratio and platelet-lymphocyte ratio of 55 pregnant women diagnosed with threatened abortion were compared with the results of 55 healthy pregnant women. ROC analysis of procalcitonin, NLR and PLR was performed for threatened abortions. Results: Procalcitonin and NLR levels were significantly higher in the threatened abortions group than in the control group (p < 0.05). The area under the curve (AUC) in ROC analysis was within the 95% confidence interval for procalcitonin and NLR, both of which were statistically significant (p < 0.05). Procalcitonin and NLR resulted as appropriate parameters as diagnostic decision-makers in predicting threatened abortions. Conclusion: There is an association between procalcitonin and NLR and threatened abortion. This result may support that inflammatory reaction plays a role in the etiology of threatened abortion.
AtıfWoS1İncele - MakaleAçık Erişim2023A NEW LOGARITHMIC RATIO TYPE ESTIMATOR OF POPULATION MEAN FOR SIMPLE RANDOM SAMPLING: A SIMULATION STUDY
Zaman, Tolga; Iftikhar, Soofia
This paper provides a logarithmic ratio type estimator of a finite population mean using an auxiliary variable in simple random sampling. The expression for the mean square error (MSE) of the proposed estimator and some selected estimators are calculated along with the theoretical conditions. Further the numerical comparisons and simulation study based on different probability distributions supports the claim that the proposed estimator performs better as compared to the ones used in this study.
AtıfWoS6OpenAlex8İncele - BildiriAçık Erişim2024A Study on the Segmentation and Classification of Diabetic Retinopathy Images Using the K-Means Clustering Method
Incir, Ramazan; Bozkurt, Ferhat
Diabetic Retinopathy (DR) is a retinal disease caused by diabetes, representing one of the most prevalent causes of vision loss affecting millions of people worldwide. Swift detection and treatment of this condition are crucial for preventing the disease. Various deep learning and machine learning algorithms have been employed for disease detection and classification, often overlooking the data preprocessing stage. In the data preprocessing phase of this study, segmentation of important lesions, such as hard exudates, was conducted using the K-Means clustering method. The identified lesions were highlighted on the original images. The resulting dataset was then classified using pre-trained architectures, namely EfficientNetV2-M, ResNet50, MobileNet, and DenseNet121. After training on the APTOS dataset, the EfficientNetV2-M model achieved an accuracy of 95.16%. The classification results indicated the contribution of the lesion highlighting process during data preprocessing to the overall classification accuracy.
AtıfWoS1OpenAlex3İncele - MakaleYayıncıda açık erişim2026Brand Dilution's Implications for Purchase Intention Through Brand Equity12
Köroglu, Ali; Yildiz, Salih
Brand dilution, which refers to new brand's damage to well-known brand's reputation and distinctive character by entering the market, is an understudied topic in marketing. Furthermore, there are very few studies comparing the effects of different levels of blurring and tarnishing. This study aims to fill this gap by examining the indirect impact of brand dilution on purchase intention through brand equity and by comparing the effects of blurring and tarnishing. For this purpose, a survey was conducted with 960 university students selected using a convenience sampling method. The conditional process model (Model 8) developed by Hayes (2018) was used in the research. The research results indicate a negative impact of brand dilution on brand equity dimensions and purchase intention. Additionally, brand awareness/association and brand loyalty play a mediating role in the relationship between brand dilution and purchase intention. Familiarity with the product category plays a moderating role in the relationship between brand dilution and brand awareness/association, brand loyalty, and purchase intention. As participants' familiarity with the product category increases, the influence of brand dilution on brand loyalty and purchase intention increases, while its influence on brand awareness/association decreases.
- BildiriYalnız künye2013Scopus SJRQ1THE ROLE OF OXIDATIVE STRESS IN CHILDREN WITH ACUTE AND CHRONIC IDIOPATHIC THROMBOCYTOPENIC PURPURA
Erduran, E.; Cakmak, S.; Aliyazicioglu, Y.; Turan, I.
- BildiriYalnız künye2009Scopus SJRQ1Alteration of Late Cretaceous dacites in the Murgul Area (Artvin, KD Turkey)
Sipahi, Ferkan; Sadiklar, M. Burhan; Sen, Cueneyt; Demir, Yilmaz
- MakaleAçık Erişim2021Diabetes Risk Assessment with Blood Parameters of The First Degree Relatives of Patients with Type-2 Diabetes Mellitus
Demirag, Hatice; Boyraz, Sakine
Objective: This study was conducted to evaluate the diabetes risk in first degree relatives of Type-2 diabetic patients who were not diagnosed with diabetes and test the validity of the Finnish Diabetes Risk Score (FINDRISK) in determining the risk of type-2 diabetes. Methods: First degree relatives of patients who were hospitalized in Izmir Katip Celebi University Ataturk Training and Research Hospital, who were not diagnosed with diabetes before, were included in this cross-sectional study. The sample of the research consisted of 200 people determined by power analysis. Data were collected by a structured question form and the FINRISK scale. Participants' height, weight, waist circumference were measured by the researcher, and venous fasting blood glucose (FBG) with Glycosylated Hemoglobin (HbA1c) were taken by the researcher. Results: The average age of the participants was 46.93 +/- 14.83 (18-86). It was determined that the vast majority of the individuals participating in the study were female (65%), 63% were married, 50.5% received high school or higher education, and 59% worked in an income-generating job. The findings was indicated that 41.5% of the participants were in the 'high-risk group' for type-2 diabetes according to the FINDRISK score scale. Sensitivity of FINDRISK score to FBG was 100% and specificity was 60%. Conclusion: As a result of findings in this study indicate that It was determined that the risk of DM was high in the first degree relatives of the patients hospitalized with Type-2 DM and the FINDRISK score scale was a good scale in predicting new asymptomatic Type 2 diabetes.
AtıfWoS1OpenAlex1TR Dizin2İncele
