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- MakaleYalnız künye2024The data analysis of the functional health patterns model for nursing care plans
Aydin, Aydanur; Serpici, Ayse; Simsek, Perihan; Gürsoy, Ayla; Çilingir, Dilek; Yavuz, Melek Erturk; Altinbas, Bahar Candas
Introduction:Clinical practices constitute an important part of nursing education and students are expected to gain the ability to plan patient care during nursing education.Aim:It aimed to construct North American Nursing Diagnosis Association (NANDA) nursing diagnoses in nursing students' patient care plans according to the Functional Health Patterns model and to evaluate them according to the Nursing Intervention Classification (NIC) and Nursing Outcomes Classification (NOC) classification systems.Methods:The descriptive study's population included 198 second-year nursing students from a university. Students' care plans were used as a data gathering form, and 176 care plans were included in the research. The data was gathered from functional health patterns, NIC, and NOC system questionnaires.Results:Nursing diagnoses were listed as infection risk (88.6%), fall risk (79.5%), and bleeding (56.8%). Nursing diagnoses belonging to sexuality-reproductive, coping-stress tolerance, and value-belief sub-categories of functional health patterns could not be reached from the care plans.Conclusion:There is a need for classification methods to objectively evaluate nursing practices, make quantifiable contributions to care, and improve the profession's scientific underpinnings. It is hoped that evidence-based care can be provided by raising pupils' knowledge of classification systems.
- MakaleAçık Erişim2025A comprehensive and realistic performance evaluation of post-quantum security for consumer IoT devices
Hanna, Yacoub; Bozhko, Jessica; Tonyali, Samet; Harrilal-Parchment, Ricardo; Cebe, Mumin; Akkaya, Kemal
The computational capacity envisaged for quantum computers poses a significant threat to today's traditional cryptographic algorithms. Although they are not yet large enough to compromise current cryptographic protocols, one can practice retrospective decryption since data packets traveling through the Internet can be easily sniffed. This threat extends to wireless communication security within consumer IoT devices that use lightweight cryptography due to limited computational power. Thus, countermeasures against potential quantum attacks should be preemptively adopted. NIST is leading efforts to standardize several algorithms as quantum-resistant Key Exchange Mechanisms (KEMs) and Digital Signatures. In this paper, we investigate the viability of these Post-Quantum algorithms in the Transport Layer Security (TLS) of power-constrained IoT devices. Specifically, it focuses on two widely used IoT network protocol stacks, i.e., Bluetooth Low Energy (BLE) and Wi-Fi. To this end, we build a realistic IoT testbed running IP over BLE. Our evaluation considers the impact of several realistic factors for the first time, such as using a chain of certificates on the server side and incorporating certificate validation methods such as Online Certificate Status Protocol (OCSP) and Certificate Revocation Lists (CRL). We also evaluate the impact of mutual authentication between the server and the client. Utilizing the outcomes of this evaluation, we then propose a novel approach for IoT devices to dynamically choose the most efficient KEM algorithm for TLS based on the device's physical network interface. The performance results provide valuable insights with respect to the TLS latency and energy consumption of consumer IoT devices.
- MakaleAçık Erişim2016Complex subvolcanic magma plumbing system of an alkali basaltic maar-diatreme volcano (Elie Ness, Fife, Scotland)
Gernon, T. M.; Upton, B. G. J.; Ugra, R.; Yücel, C.; Taylor, R. N.; Elliott, H.
Alkali basaltic diatremes such as Elie Ness (Fife, Scotland) expose a range of volcanic lithofacies that points to a complex, multi -stage emplacement history. Here, basanites contain phenocrysts including pyrope garnet and sub-calcic augites from depths of similar to 60 km. Volcanic rocks from all units, pyroclastic and hypabyssal, are characterised by rare earth element (REE) patterns that show continuous enrichment from heavy REE (HREE) to light REE (LREE), and high Zr/Y that are consistent with retention of garnet in the mantle source during melting of peridotite in a garnet lherzolite fades. Erupted garnets are euhedral and unresorbed, signifying rapid ascent through the lithosphere. The magmas also transported abundant pyroxenitic clasts, cognate with the basanite host, from shallower depths (similar to 35-40 km). These clasts exhibit wide variation in texture, mode and mineralogy, consistent with growth from a range of compositionally diverse melts. Further, clinopyroxene phenocrysts from both the hypabyssal and pyroclastic units exhibit a very wide compositional range, indicative of polybaric fractionation and magma mixing. This is attributed to stalling of earlier magmas in the lower crust principally from similar to 22 to 28 km as indicated by pyroxene thermobarometry. Many clinopyroxenes display chemical zoning profiles, occasionally with mantles and rims of higher magnesium number (Mg#) suggesting the magmas were mobilised by juvenile basanite magma. The tuffs also contain alkali feldspar megacrysts together with Feclinopyroxene, zircon and related salic xenoliths, of the 'anorthoclasite suite' - inferred to have crystallised at upper mantle to lower crustal depths from salic magma in advance of the mafic host magmas. Despite evidence for entrainment of heterogeneous crystal mushes, the rapidly ascending melts experienced negligible crustal contamination. The complex association of phenocrysts, megacrysts and autoliths at Elie Ness indicates thorough mixing in a dynamic system immediately prior to explosive diatreme-forming eruptions. (C) 2016 Elsevier B.V. All rights reserved.
- MakaleAçık Erişim2024Investigation on the heat transfer and pressure loss of flow boiling in smooth and microfin tubes using machine learning methods
Sezer, Sukru; Sezer, Cihan; Celen, Ali; Bacak, Aykut; Dalkiliç, Ahmet Selim
The estimation of heat transfer coefficients (HTC) and pressure drop (Delta P) in flow boiling processes is essential for the effective design and operation of refrigeration systems. In this study, the artificial neural network (ANN), locally weighted regression (LWR), and gradient boosted machine (GBM) methods are employed to predict the boiling heat transfer coefficient (HTC) and pressure drop (Delta P\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}Δ P\end{document}) in flow boiling of R134a. The study focuses on horizontally positioned both straight and microfin tubes. The ANN, LWR, and GBM methodologies are utilized to ascertain the parameters of boiling HTC and Delta P as outputs. These parameters are determined by considering the mass flux, saturation pressure, heat flux, vapor quality, Reynolds number, Lockhart-Martinelli parameter, Froud number, Weber number, and Bond number as inputs. The training dataset is partitioned into 5 sections for the purpose of hyperparameter tweaking for each model. Out of these sections, 4 parts, consisting of approximately 111 samples, are utilized for training, while 1 part, including around 27 samples, is allocated for validation. The optimal hyperparameters are determined by calculating the average R2 score over the 5 validation sets. Using raw measurements, HTC and Delta P are successfully modeled using a relatively much smaller dataset of 174 measurements, with 82.4% R2 score and 0.7% weighted average relative deviation for HTC, and 88.9% R2 score and 4.1% weighted average relative deviation for Delta P across multiple tube types, achieved by LWR algorithm. Model performances are validated with an extrapolation test and found to be consistent with traditional train-validation-test sampling scheme with 75.9% R2 score and -6.2% weighted average relative deviation for HTC, and 89.3% R2 score and -3.9% weighted average relative deviation for Delta P, showing the consistency of the hypotheses created by a hybrid of parametric and nonparametric model families even outside the observed measurement range for multiple tube types. Local weighted regression models are the most performant, especially for limited data availability. However, calculated measurements increase error rates, suggesting that HTC and Delta P models work best with raw measurements.
- MakaleAçık Erişim2018A consensus linkage map of lentil based on DArT markers from three RIL mapping populations
Ates, Duygu; Aldemir, Secil; Alsaleh, Ahmad; Erdogmus, Semih; Nemli, Seda; Kahriman, Abdullah; Ozkan, Hakan; Vandenberg, Albert; Tanyolac, Bahattin
Background Lentil (Lens culinaris ssp. culinaris Medikus) is a diploid (2n = 2x = 14), self-pollinating grain legume with a haploid genome size of about 4 Gbp and is grown throughout the world with current annual production of 4.9 million tonnes. Materials and methods A consensus map of lentil (Lens culinaris ssp. culinaris Medikus) was constructed using three different lentils recombinant inbred line (RIL) populations, including CDC Redberry x ILL7502 (LR8), ILL8006 x CDC Milestone (LR11) and PI320937 x Eston (LR39). Results The lentil consensus map was composed of 9,793 DArT markers, covered a total of 977.47 cM with an average distance of 0.10 cM between adjacent markers and constructed 7 linkage groups representing 7 chromosomes of the lentil genome. The consensus map had no gap larger than 12.67 cM and only 5 gaps were found to be between 12.67 cM and 6.0 cM (on LG3 and LG4). The localization of the SNP markers on the lentil consensus map were in general consistent with their localization on the three individual genetic linkage maps and the lentil consensus map has longer map length, higher marker density and shorter average distance between the adjacent markers compared to the component linkage maps. Conclusion This high-density consensus map could provide insight into the lentil genome. The consensus map could also help to construct a physical map using a Bacterial Artificial Chromosome library and map based cloning studies. Sequence information of DArT may help localization of orientation scaffolds from Next Generation Sequencing data.
- MakaleAçık Erişim2018The effects of ownership concentration and institutional distance on the foreign entry ownership strategy of Turkish MNEs
Ilhan-Nas, Tulay; Okan, Tarhan; Tatoglu, Ekrem; Demirbag, Mehmet; Glaister, Keith W.
We investigate how ownership concentration and institutional distance both directly influence the equity-based ownership strategies of a sample of Turkish MNEs, and also how institutional differences moderate the link between ownership concentration and the equity-based ownership strategies of these firms. The findings suggest that neither ownership concentration nor institutional distance significantly affects the level of equity ownership. Although institutional distance variables have no direct effects on equity ownership, they tend to moderate the relationships between the ownership concentration and foreign equity ownership strategy of Turkish MNEs. In particular, we provide evidence that the regulative and normative dimensions of institutional distance affect the strength of the relationships between equity ownership strategy of MNEs and ownership concentration more so than the cognitive dimension of institutional distance.
- MakaleAçık Erişim2022Diurnal variation in Uchikomi fitness test performance: Influence of warm-up protocols
Eken, Oezguer; Yagin, Fatma Hilal; Eken, Ismihan; Gabrys, Tomasz; Knappova, Vera; Bayrakdaroglu, Serdar; Akyildiz, Zeki; Nobari, Hadi
Performance is judged using a variety of methods to ensure uniformity between competitions. Uchikomi Fitness Test (UFT) could accomplished between morning qualifying and evening finals. The purpose of this study is to investigate the impact of different warm-up protocols on UFT at different times of the day in female judokas. Ten volunteer women who had been practising judo on a regular basis for more than 5 years and actively competed in international tournaments took part in this study. Judokas completed UFT, either after no-warm-up (NWU), specific warm-up (SWU), and linear+lateral warm-up (FWU) protocols for two times a day in the morning: 09:00-11:00 and in the evening: 16:00-18:00, on non-consecutive days. In conclusion, there was a significant increase in UFT scores (F = 9.89; p = 0.002), a + b (F = 4.42; p = 0.04) and heart rate (F = 28.99; p < 0.001) in the early evening compared to the morning. Increases in UFT performance were observed in the SWU protocol compared to the NWU and FWU protocols (p < 0.05). However, the interaction between time of day and warm protocol was not significant (p > 0.05). The UFT performance revealed diurnal variation, and the judokas' performances may be favourably affected more in the late hours, particularly following SWU procedures.
- MakaleAçık Erişim2012Numerical Simulation of Fractional Fornberg-Whitham Equation by Differential Transformation Method
Merdan, Mehmet; Gökdogan, Ahmet; Yildirim, Ahmet; Mohyud-Din, Syed Tauseef
An approximate analytical solution of fractional Fornberg-Whitham equation was obtained with the help of the two-dimensional differential transformation method (DTM). It is indicated that the solutions obtained by the two-dimensional DTM are reliable and present an effective method for strongly nonlinear partial equations. Exact solutions can also be obtained from the known forms of the series solutions.
- MakaleAçık Erişim2025Muay Thai exercises improve quality of life, love of life and self-control
Sahin, Oktay; Yilmaz, Coskun; Sezer, Sureyya Yonca; Sahin, Fatma Nese; Ceylan, Levent; Çelikel, Baha Engin; Tan, Cetin; Uçar, Mine Akkus; Kirikoglu, Nagihan
Background The existing research on Muay Thai sports has focused predominantly on the physiological effects of training, with limited attention devoted to the study of quality of life, love of life and self-control. The present study examined the effects of Muay Thai exercises on quality of life, love of life and self-control scores in healthy male subjects. Methods The present study comprised 50 healthy sedentary male subjects. The subjects were randomly divided into two groups: one group engaged in Muay Thai training (MTT), while the other group served as a control group (CON). The sample sizes for the MTT and CON groups were both 25. The MTT group participated in basic Muay Thai training, while the CON group continued their normal life regime. The SF-12 quality of life scale, love of life scale and multidimensional self-control scale were administered before and after the six-week training period. Results The study concluded that the six-week Muay Thai training program had a significant effect on quality of life levels, with 13.23% (p = 0.003) and 21.93% (p < 0.001) of participants demonstrating improvements in physical and mental scores, respectively. In terms of self-control levels, the program was found to have a significant effect on initiation and inhibition scores, with increases of 23.78% (p = 0.001) and 24.69% (p < 0.001), respectively. It was concluded that had a significant effect on the sub-dimensions of the Love of Life scale with increases of Positive Attitude Toward Life (PAWL) 18.63% (p < 0.001), Happy Results of the Love of Life (HRLL) 20.11% (p < 0.001) and Meaningfulness of Life (ML) 15.62% (p < 0.001), respectively. However, no significant differences were detected in any of the scales within the control group. Conclusion Muay Thai exercises had a positive effect on quality of life, love of life and self-control levels in healthy male subjects. By providing valuable insights into how Muay Thai exercise affects quality of life, love of life, and self-control, this research can guide future intervention and program design in the context of sport psychology.
- MakaleYalnız künye2021The effect of chewing gum on dry mouth, interdialytic weight gain, and intradialytic symptoms: A prospective, randomized controlled trial
Ozen, Nurten; Aydin Sayilan, Aylin; Mut, Dilek; Sayilan, Samet; Avcioglu, Zeynep; Kulakac, Nursen; Ecder, Tevfik; Akyolcu, Neriman
Introduction The major salivary glands can be stimulated by chewing gum to increase saliva flow and decrease xerostomia. The aim of this study was to investigate the effect of chewing gum on dry mouth, interdialytic weight gain, and intradialytic symptoms in hemodialysis (HD) patients. Methods This prospective randomized controlled single-blind study was conducted with patients who had been treated for at least 6 months with sessions 3 days a week for 4 hours at two HD units. Patients were randomly allocated to chewing gum group or the control group. In the chewing gum group, gum was chewed for 10 minutes six times a day, and when the patients felt mouth dryness or were thirsty. In the nonchewing gum group, gum was not chewed. The patients were followed-up for 3 months. A total of three saliva samples were taken before starting treatment at the first, 12th, and 36th HD session. Data were collected with the Visual Analogue Scale (VAS), Hemodialysis Patients Fluid Control Scale, Dialysis Symptom Index, and Hospital Anxiety and Depression Scale at baseline, week 4, week 8, and week 12. Findings The study was completed with a total of 44 patients consisting of 22 patients in the each group. The second and third month VAS values (xerostomia) of the patients in the chewing gum groups were statistically significantly lower than those in the control group (P= 0.014,P < 0.001, respectively). The third month salivary flow rate in the chewing gum group was higher than the values in the control group patients (P < 0.001). Discussion It is anticipated that this study will raise nurses' awareness of dry mouth and encourage future studies on interventions to increase the salivary flow rate to prevent or treat dry mouth.
- MakaleAçık Erişim2025Log-transformed approaches to variance estimation using auxiliary data
Singh, Poonam; Sharma, Prayas; Singh, Anjali; Zaman, Tolga; Emam, Walid
Reliable statistical inference requires accurate population variance estimate, especially in domains where measurement limitations and intrinsic variability impact data. Applying traditional estimators to skewed or heavy-tailed populations frequently results in inefficient results. We provide a novel class of generalized logarithmic variance estimators that use logarithmic transformations and auxiliary data to stabilize variance and improve estimator performance in order to overcome this constraint. We calculate the suggested estimators' bias and Mean Squared Error (MSE) expressions and assess their effectiveness using comprehensive Monte Carlo simulations with different sample sizes. The suggested estimator, Tr1-, produces a significant reduction in MSE up to 57% increase in efficiency (PRE) at n=600 when compared to the usual estimator. The suggested methodologies resilience and suitability for high-variability situations are further confirmed using real-world datasets. In every context, the findings show that the suggested estimators perform better than the current ones in terms of lower MSE and greater PRE. This research demonstrates how logarithmic transformations may be used to create variance estimators that are more accurate and effective, especially when auxiliary variables are provided.
- BildiriYalnız künye2011Hydroxyapatite production on ultrafine-grained pure titanium by micro-arc oxidation and hydrothermal treatment
Alsaran, A.; Purcek, G.; Hacisalihoglu, I.; Vangolu, Y.; Bayrak, O.; Karaman, I.; Celik, A.
In this study, pure-Ti (Grade-2) was severely plastically deformed by equal-channel angular extrusion (ECAE) to improve its strength, and then subjected to micro arc oxidation (MAO) and hydrothermal treatment (HT) to achieve improved surface behavior with hydroxyapatite (HA)-containing titania (TiO(2)) coating. Microstructure, tensile properties and wear behavior of UFG Ti were investigated systematically before and after surface modification. ECAE considerably enhanced the strength of coarse-grained (CG) Ti by forming an ultra-fine grained (UFG) microstructure with high dislocation density. The application of MAO with or without HT did not cause remarkable decrease in strength and ductility of CG and UFG Ti, but resulted in a considerable increase in its wear resistance and osseointegration due to the formation of hard and adhered HA-containing TiO2 coating on the surface. It can be concluded that the use of ECAE plus MAO/HA coating provides a simple and effective procedure to obtain pure Ti with high strength and high wear resistance. The improved bulk and surface properties can make this biocompatible material a good potential candidate for biomedical applications instead of alloys including toxic elements. (C) 2011 Elsevier B.V. All rights reserved.
- MakaleAçık Erişim2014Molecular Epidemiology, Antimicrobial Resistance and Characterization of Extended-Spectrum Beta-Lactamases of Salmonella enterica Serotype Paratyphi B Clinical Isolates
Bayramoglu, Gulcin; Özgümüs, Osman Birol; Kolayli, Fetiye; Kamburoglu, Ahu; Besli, Yesim; Dinç, Ugur; Tosun, Ilknur; Aydin, Faruk
Although Salmonella enterica serotype Paratyphi B is the less frequently isolated serotype worldwide and in Turkey, it is the most common serotype in our hospital, with a marked increase in 2007. The purpose of this study was to investigate the antibiotic susceptibility and the extended spectrum beta-lactamase (ESBL) profile, and molecular epidemiology of S. Paratyphi B isolates detected in our hospital microbiology laboratory. Seventy isolates identified as S. Paratyphi B from 109 Salmonella isolates obtained from clinical specimens from different patients between October 2005 and December 2012, were included in the study. In addition to conventional methods, isolates were identified using the Phoenix automated microbiology system (Becton Dickinson, USA). Serotyping of the isolates was performed on the basis of slide agglutination and the Kauffmann-White scheme. The antibiotic susceptibility of the isolates was determined using the BD Phoenix (TM) automated system and disk diffusion test. ESBL enzymes were investigated using the combined disk test, isoelectric focusing, polymerase chain reaction (PCR) and sequence analysis. The molecular epidemiology of the 51 isolates obtained between October 2005 and August 2008 was examined with pulsed-field gel electrophoresis (PFGE) using the Xbal enzyme. S. Paratyphi B isolates were obtained from 70 specimens (46 blood, 16 fecal, 4 bone marrow, 2 urine and 2 wound) each from different patients. Resistance to nalidixic acid was determined in 18.6%, resistance to ampicillin, cefotaxime and cefepime in 2.9% and to ceftazidime and co-trimoxazole in 1.4% of the isolates. ESBL production was detected only in two isolates; in one TEM-1 was accompanied by CTX-M-15 and in the other isolate CTX-M-3 was found. Forty-six of the 51 isolates (90%) were found to be genetically related by PFGE and were placed in cluster A. The distribution of the isolates in cluster A revealed six subtypes as A1 (n= 7), A2 (n= 11), A3 (n= 7), A4 (n= 18), AS (n= 2) and A6 (n= 1). Three different patterns not related to the cluster A were determined in the remaining five isolates (two were B, one of each was C, D and E). In conclusion, although the rate of antibiotic resistance was low in the S. Paratyphi B isolates in our hospital, rare types of ESBLs such as CTX-M-3 and CTX-M-15 were detected in Salmonellae. As far as the current literature is considered, this is the first report in Turkey of bla(CTX-M-15) in Salmonella spp. and bla(CTX-M-3) genes in S. Paratyphi B. The results may indicate a possible future threat to the treatment of Salmonella infections. Since most of the isolates were genetically related, this might suggest an epidemic in our region.
- MakaleYalnız künye2022The associations between metacognition problems, childhood trauma and internalizing symptoms in healthcare workers working directly with patients infected with COVID-19
Sen Demirdogen, Ezgi; Algedik, Pinar; Warikoo, Nishchint; Bahadir, Erdi; Akbiyik, Meral; Büyüktarakçi, Seda; Kadak, Muhammed Tayyip; Yavuz, Mesut
Healthcare workers (HCWs) providing medical support while facing one of the highest levels of adverse and potentially fatal outcomes due to COVID-19 are put in a vulnerable position leading to the development of mental health problems. The development of any prevention and intervention programs to reduce this risk is possible with better understanding and knowledge of possible vulnerability factors. The aim of the present study is to investigate psychological effect of working directly with patients infected with COVID-19 (WD) and possible individual vulnerability factors for the development of psychological problems in HCWs. The data used in this cross-sectional study were collected using online self-reported questionnaires from 290 HCWs aged 21-61 years old. The mean score of the scales of 145 HCWs-WD and 145 HCWs not WD (HCWs-NWD) were compared by independent sample t test. Associations between childhood traumas, metacognitive dysfunctional beliefs and internalizing symptoms were analyzed using structural equation modelling (SEM). The depression, anxiety, stress symptoms levels, somatization and sleep problem levels were found to be higher in HCWs-WD compared to HCWs-NWD. SEM revealed that childhood trauma levels was associated with the increased risk of internalizing problems, and metacognitive dysfunctional beliefs had a partial mediator role between childhood traumas and internalizing symptoms in HCWs-WD. Improving metacognitive abilities may hence need to be considered in prevention programs for the HCWs. The findings can also be used to set up further research on the specific interventions on the HCWs who are at a risk as their profession entails them being in such traumatic situations.
- MakaleAçık Erişim2024Comparative Cranial Geometric Morphometrics among Wistar Albino, Sprague Dawley, and WAG/Rij Rat Strains
Agaç, Duygu Kucuk; Onuk, Burcu; Gündemir, Ozan; Kabak, Murat; Manuta, Nicoleta; Çakar, Buket; Janeczek, Maciej; Crampton, Denise Amber; Szara, Tomasz
Simple Summary Geometric morphometrics allows the examination of the shape variation of structures. In this study, the skull, mandible, and teeth of three different strains of rats were examined. The results showed that the strains significantly differed in shape. The most important shape difference in the skull was the variation of the cranium from an oval to an elongated structure. In this respect, Sprague Dawley rats showed a more elongated skull, while WAG/Rij rats had a more oval skull. Wistar Albino rats showed a more moderate shape variation. WAG/Rij rats showed very different shapes of the mandible and teeth compared to the other strains. But statistically, it was seen that all strains were completely separated from each other.Abstract This research utilizes geometric morphometrics to investigate shape variation in the skull, mandible, and teeth among three rat strains: Wistar Albino (WA), Sprague Dawley (SD), and WAG/Rij (WR). Through the analysis of 48 rats using 2D geometric morphometric techniques, significant differences in their skull morphology were identified. This study indicates a shift from a rectangular to an oval cranial shape across strains, with notable size and morphological variances. Particularly, the WR strain's skull shape significantly differs from the SD and WA strains, suggesting distinct ecological or genetic pathways. Compared to the skull, mandible shape differences are less pronounced, but still significant. The WR strain exhibits a distinct mandible shape, potentially reflecting ecological adaptations like dietary habits. The teeth shape of WR rats is the most distinct. SD rats consistently exhibited larger sizes in both skull and mandible measurements, while WR rats were notably smaller. Interestingly, sexual dimorphism was not statistically significant in skull and teeth sizes, aligning with findings from previous studies. However, the mandible showed clear size differences between sexes, underscoring its potential for adaptive or behavioral studies. In summary, this study provides a comprehensive analysis of morphological variations in rat strains, highlighting the intricate interplay of size, shape, and ecological factors. These findings lay a foundation for deeper explorations into the adaptive, ecological, or genetic narratives influencing rat morphology.
- MakaleAçık Erişim2015Antioxidant components of Viburnum opulus L. determined by on-line HPLC-UV-ABTS radical scavenging and LC-UV-ESI-MS methods
Karaçelik, Ayca Aktas; Küçük, Murat; Iskefiyeli, Zeynep; Aydemir, Sezgin; De Smet, Seppe; Miserez, Bram; Sandra, Patrick
Antioxidant activity of the juice and seed and skin extracts prepared with methanol, acetonitrile, and water of Viburnum opulus L. grown in Eastern Black Sea Region were studied with an on-line HPLC-ABTS method and off-line antioxidant methods, among which a linear positive correlation was observed. The fruit extracts were analysed with the HPLC-UV method optimised with 14 standard phenolics. Identification of the phenolic components in the juice was made using an HPLC-UV-ESI-MS method. Nineteen phenolic compounds in juice were identified by comparing the retention times and mass spectra with those of the standards and the phenolics reported in the literature. The major peaks in the juice belonged to coumaroyl-quinic acid, chlorogenic acid, procyanidin B2, and procyanidin trimer. Quite different antioxidant composition profiles were obtained from the extracts with the solvents of different polarities. The antioxidant activities of the seed extracts were higher than those of the skin extracts in general. (C) 2014 Elsevier Ltd. All rights reserved.
- MakaleYalnız künye2026The Effect of Match Running on Team Success in Professional Soccer
Tokul, Erdi; Mülazimoglu, Olcay; Özkara, Abdullah Bora; Özçilingir, Ozgun Mirac; Somoglu, Mustafa Baris; Turan, Cagatay; Baskaya, Gizem; Erdem, Kamil
This study aimed to examine match running performance (RP) in professional soccer teams in terms of success variables. A total of 626 observations obtained via a multicamera tracking system (InStat Ltd.) from a total of 323 matches played by 19 teams in the Turkish Super League (TSL) during a season were analyzed. The success of the teams was examined as two different independent variables: i) according to the endof-season final table ranking (1st rank: the first five teams that have qualified for the European League; 2nd rank: the second rank five teams; 3rd rank: the third rank five teams; and 4th rank: the four relegated teams). ii) According to the match outcome (win, draw, loss). The RP variables included total distance (TD), covered distance in five speed zones (walking, jogging, running, high-speed running (HSR) and sprinting), high-intensity acceleration (HIA) and maximum acceleration. ANOVA and post hoc tests revealed that 1strank teams were significantly more common in running, HSR, sprinting and acceleration (p < .05). There was no difference between the TD groups (p > .05). The TD, walking sprinting and max. acceleration values of the winning teams were greater (p < .05). The short-term success goal for teams is to win a match or score a point, and the long-term goal is to be at the top of the final table in the season. Therefore, the current research revealed that high-intensity RPs and high intensity acceleration in matches are especially decisive in the success of teams.
- MakaleAçık Erişim2020Effect of ultrasonication treatment on structural, physicochemical and bioactive properties of pasteurized rosehip (Rosa canina L.) nectar
Atalar, Ilyas; Saricaoglu, Furkan T.; Odabas, Halil I.; Yilmaz, Volkan A.; Gul, Osman
The effect of ultrasonication process (US) on the physical and bioactive properties of pasteurized rosehip nectar was investigated. In order to solve sedimentation problem, two amplitude levels (50 and 100%) and different treatment times (5, 10, 15 and 30 min) were applied to rosehip nectars. Mean particle size decreased as amplitude and treatment time increased. US treatment caused to increase in redness and yellowness values of nectars and also color change was found noticeable as 1.9-2.6 at 100% amplitudes. US treated samples showed no sedimentation during storage for 15 days while control sample displayed 74% colloidal stability. All samples showed shear-thinning behavior and were characterized as weak gel network. Total phenolic and carotenoid contents and antioxidant activity was increased by US treatment, however, ascorbic acid content decreased. US treatment can be an alternative technology preventing sedimentation problems during shelf life with minimally affecting bioactive and physical properties of rosehip nectar.
- MakaleYalnız künye2026Agricultural value-added, fertilizer and pesticide use, and environmental load capacity: evidence from BRICS-T countries
Akyol, Mehmet; Zuhal, Mustafa; Mete, Emrullah; Lorente, Daniel Balsalobre; Barut, Abdulkadir
The agricultural sector plays a vital role in ensuring food security and supporting sustainable economic growth. However, climate change and global warming pose significant challenges to the long-term viability of agricultural production, underscoring the need for sustainable agricultural practices. Adopting clean technologies and environmentally responsible policies is essential for balancing economic and agricultural sustainability while minimizing ecological harm. Supportive and protective agricultural inputs are widely used to enhance productivity, yet excessive, unregulated use can lead to environmental degradation. This deterioration negatively impacts ecosystems, reducing biodiversity and straining natural resources. The Load Capacity Factor (LCF) serves as a critical metric for assessing the environmental footprint of agricultural activities. This paper investigates the effects of agricultural value-added, pesticide use, and fertilizer application on LCF in BRICS-T countries. The findings indicate that these variables exhibit long-term cointegration, with varying short- and long-term impacts. To ensure the sustainability of agricultural production while safeguarding ecosystems, it is essential to integrate clean technologies, precision farming, and regenerative agricultural practices into policy frameworks. Sustainable agricultural systems and environmentally conscious policies are fundamental to securing resilient food production and long-term economic stability.
- MakaleYalnız künye2017Carbonic anhydrase I and II autoantibodies in Behcet's disease
Mentese, A.; Alver, A.; Demir, S.; Sumer, A.; Yaman S, Ozer; Karkucak, M.; Capkin A, Aydin; Us, Altay D.; Turan, I
Background: Behcet's disease ( BD) is a vasculitis, seen more frequently around the Mediterranean and the Far East, and evinces with oral and genital ulcerations, skin lesions and uveitis. Carbonic anhydrase ( CA) is a metalloenzyme which is widely distributed in the living world, and it is essential for the regulation of acid-base balance. Anti-CA antibodies have been reported in many disorders, such as systemic lupus erythematosus, Sjogren's syndrome, rheumatoid arthritis, endometriosis, idiopathic chronic pancreatitis, type 1 diabetes and Graves' disease. The goal of this study was to investigate CA I and II autoantibodies in BD. Methods: 35 patients with BD and 29 healthy controls were included in the study and CA I and II autoantibody levels were investigated by ELISA. Results: The CA I and II autoantibody levels of BD group were significantly higher than the healthy group (p= 0.013, p= 0.0001, respectively). A cut-off value of 0.250 absorbance unit (ABSU) for anti-CA I was associated with 34% sensitivity and 100% specificity and a cut-off value of 0.171 ABSU for anti-CA II was associated with 54% sensitivity and 100% specificity for predicting BD. Conclusion: The CA I and II autoantibody levels in pa-tients with BD were found higher compared to control group and the results suggest that CA I and II autoantibodies may be involved in the pathogenesis of BD
