Manisa Celal Bayar Üniversitesi Akademik Arşiv Sistemi
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Investigating the interplay of chronic pain intensity and psychosocial factors in adult women: A pilot study from Türkiye
No full textIn this cross-sectional study, the authors investigated the relationships between chronic pain intensity and quality of life, pain coping strategies, and pain beliefs levels in 405 adult women. The participants with a mean age of 48.8 +/- 5.08 generally defined chronic pain intensity as moderate pain (x=7.17, sd = 2.01). There was a weak positive relationship between chronic pain intensity and the worrying dimension, one of the passive coping strategies, and a weak negative relationship with the retreating dimension. A weak negative relationship was identified between chronic pain intensity and pain beliefs levels, both organic beliefs and psychological beliefs sub-dimensions. The multivariate model identified by regression analysis explained 21.2% of the total chronic pain intensity variance. Our findings suggest that while chronic pain is undoubtedly a complex and multifaceted experience, understanding the psychosocial aspects of a person's life can shed valuable light on their pain levels and how they cope with them
Effects of Stainless Steel Woven Wire Mesh Reinforcement on the Load-Bearing Capacity of Adhesively Bonded Aluminium Alloy Single-Lap Joints
No full textIn this paper, the impact of stainless steel woven wire mesh (SSWWM) reinforcement within the adhesive layer on the load-carrying capacity of the adhesively bonded single-lap joints (SLJs) was studied. SLJs were fabricated using Loctite EA 9466 epoxy as the adhesive, AA5083 aluminium alloy as the adherend, and SSWWMs as the reinforcement. The influence of mesh count (20, 40, 60, and 80) and area (10mmx10mm\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}\end{document}, 20mmx20mm\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}\end{document}, and 25mmx25mm\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}\end{document}) of the SSWWM on the SLJ strength was investigated. Furthermore, considering the failure mechanism of the SLJ, the SSWWMs were strategically placed at the centre and at both ends of the adhesive layer, thereby examining the influence of the SSWWM location on the SLJ strength. According to the results obtained from tensile tests, the inclusion of the SSWWM into the adhesive layer increases the peak force of the SLJs between 7 and 46%, depending on the mesh count, area, and location of the SSWWM. Also, the location and area of the SSWWM are critical factors for joint strength. Increasing the area of the SSWWM and placing the SSWWM close to the ends of the overlap region considerably contributes to the SLJ strength
Assessment of retention basin volume and outlet capacity in urban stormwater drainage systems with respect to water quality
No full textThe quality of river water or other surface waters is detrimentally affected by the contaminants carried by the rainfall runoff in urban areas. The control of pollution moved by rainfall runoff is achieved by installing outlets and small retention basins in stormwater collection systems, thereby allowing only a certain amount of rainfall water to overflow and leading the remaining to treatment plants. This study analyses the effect of concentration time on surface water pollution caused by rainfall runoff. For this purpose, a linear S-curve is assumed for the flow hydrograph arising from the collection system, based on parameters of rainfall considered and the catchment area. An independent code is developed to analyse such a system and this is applied to an urban area using. nine-year single-discrete rainfall records of Izmir Station, Turkey. The system is capable of tackling situations where there is only a basin or a basin with outlet
New records of rarely reported species in the Mediterranean Sea (July 2023)
No full textThis Collective Article presents new information about the occurrence of 23 marine taxa that belong to five Phyla: two Chlo-rophyta, one Annelida, six Mollusca, three Arthropoda, eleven Chordata (one Ascidiacea, one Elasmobranchii and nine Teleostei) and extending from the Western Mediterranean to the Levantine Sea. All these records were reported from nine countries from the western to the eastern Mediterranean Sea, with a broad biogeographical coverage as follows: Spain: first records of the sacoglos-sans Cyerce graeca and Placida tardyi for the Alboran Sea and first records of the nudibranch Marionia gemmii for the Mediter-ranean waters of Spain; first records of nudibranch Algarvia alba in the Mediterranean Sea. Italy: First report of the long-legged crab Paragalene longicrura, a further new Mediterranean record of the rare offshore rockfish Pontinus kuhlii, first documented record of the spiny butterfly ray Gymnura altavela in Sardinia (Tyrrhenian Sea), new record of the red-spotted wrasse Lappanella fasciata from the Messina Strait, first documented record of the rarely observed brown moray Gymnothorax unicolor in the Ionian coast, first record of the colonial ascidian Botrylloides israeliensis, first record of the Morocco dentex Dentex maroccanus, first record of mottled shore crab Pachygrapsus maurus and of an adult specimen of barracudina Lestidiops sphyrenoides in the Adri-atic Sea, and further new Mediterranean records of Ross worm Sabellaria spinulosa along the same coast. Tunisia: second record of smalleye squaretail Tetragonurus cuvieri from the African Mediterranean coast. Slovenia: first records of the sea slug Trapania graeffei and Melanochlamys wildpretii, with the last one also representing the northernmost finding of this species. Croatia: northernmost record of the endangered twaite shad Alosa fallax in the Adriatic coast. Albania: first records of the Mediterranean spearfish Tetrapturus belone. Turkiye: first record from the Aegean coasts for Turkiye of the green macroalgae Cladophora bat-tersii and Valonia aegagropila. Israel: first record of the skeleton shrimp Caprella acanthifera in the Southeastern Mediterranean Sea. Syria: first record of the Smooth grenadier Nezumia aequalis from Syrian marine waters
Molecular prevalence and genetic characterization of Enterocytozoon bieneusi in cattle in a dairy farm in Türkiye
No full textBackground: Microsporidia, which are unicellular and obligate intracellular eukaryotic pathogens, can infect many animal species and humans. Cattle are known to be an important source for the spread of Enterocytozoon bieneusi (E. bieneusi) to humans and animals. Therefore, this study aimed to investigate E. bieneusi in fecal samples collected from cattle and environmental samples within a dairy farm and to genotype E. bieneusi-positive samples. For this purpose, a Nested PCR targeting a region of the E. bieneusi ribosomal DNA internal transcribed spacer (ITS) was applied to the DNA samples extracted from fecal (n = 47) or environmental samples (n = 41). Later, sequencing data belonging to E. bieneusi-positive samples were analyzed by BLAST and phylogenetic analysis for genotyping. Results: Nested PCR screening detected 15 E. bieneusi-positive samples and among them six (12.8%; 6/47) were detected in fecal samples while nine (21.9%; 9/41) were detected in environmental samples (including drinking water containers, mangers, feeding bottle, milk heating tank and towel). When cattle were categorized by their age, the molecular prevalence of E. bieneusi for cattle 2 months old, the molecular prevalence of E. bieneusi was 10% (1/10). Surprisingly, remaining cattle > 2 years old (n = 11) were found to be E. bieneusi-negative. BLAST and phylogenetic analyses revealed type IV as well as 11 new genotypes designated as NG1 to NG11. Conclusion: These findings point out that cattle and farms are important sources for the transmission of E. bieneusi spores to humans or animals. © The Author(s) 2025
Analysis of mixed convection of nanofluid in a 3D lid-driven trapezoidal cavity with flexible side surfaces and inner cylinder
No full textNumerical study of mixed convection in a lid-driven 3D flexible walled trapezoidal cavity with nanofluids was performed by using Galerkin weighted residual finite element method. Effects of various pertinent parameters such as Richardson number (between 0.05 and 50), elastic modulus of the side surfaces (between 1000 and 10(5)), side wall inclination angle (between 0 degrees and 20 degrees) and solid particle volume fraction (between 0 and 0.04) on the fluid flow and heat transfer characteristics in a 3D lid-driven-trapezoidal cavity were numerically examined. It was observed that these characteristics are influenced when the pertinent parameters change. Flexible side surface can be used as control element for heat transfer rate. Increment and reduction in the space which are provided by the flexible side walls result in heat transfer enhancement and deterioration for side wall inclination angle of 0 degrees and 10 degrees. Average Nusselt number enhances by about 9.80% when the value of the elastic modulus is increased from 1000 to 10(5) for side wall inclination angles of theta = 0 degrees. Adding nanoparticles to the base fluid results in linear increment of heat transfer and at the highest volume fraction, 25.30% of heat transfer enhancement is obtained. A polynomial type correlation for the average Nusselt number along the hot wall was proposed and it has a fourth order polynomial dependence upon the Richardson number and first order dependence upon the solid particle volume fraction
Performance Analysis and Identification of an Indirect Photovoltaic Thermal Dryer with Aluminum Oxide Nano-Embedded Thermal Energy Storage Modification
No full textIn the current paper, different thermal energy storage unit-integrated photovoltaic thermal (PVT) air collectors with and without nanoparticles have been designed, fabricated and tested. Aluminum oxide nanoparticles have been integrated into the thermal storage unit to increase the performance of the PVT collector. The developed collectors have been tested in a drying application at two different mass flow rates. The major goals of this work are upgrading the performance of the PVT air collector by employing a nano-embedded thermal energy storage unit and analyzing the impacts of using nanoparticles in the latent heat storage unit in the PVT collector on the drying performance of the system. The drying time was reduced by approximately 15-22% by employing nanoparticles in the thermal storage unit. Moreover, overall exergy efficiency values were obtained in ranges of 12.49-14.67% and 13.64-16.06%, respectively, for modified and unmodified PVT air collectors. It should be indicated that the overall energy and exergy efficiencies of the PVT air collectors were improved in the ranges of 6.91-6.97% and 9.20-9.47%, respectively, by using nanoparticles in the thermal energy storage unit. The combination of increasing the flow rate and integrating nanoparticles into the storage unit improved the overall exergetic efficiency of the PVT air collector by 28.58%. The mean exergetic efficiency of the drying room was between 48.33 and 54.26%. In addition to the experimental analysis, dynamic models for thermal and exergy efficiencies of developed collectors were constructed by employing the system identification method
Sorption of uranium(VI) from aqueous solutions by DEEA organo-volcanic: isotherms, kinetic and thermodynamic studies
No full textThe sorption of the uranium(VI) ions from aqueous solutions by diethylethanolammonium organo-volcanics (Kula-TURKEY) was investigated under different experimental conditions. DEEA was used to modify the surface of basaltic volcanics. The characteristic of basaltic volcanic was analyzed by XRF, SEM-EDS, FTIR, and XRD. The BET surface areas of unmodified volcanics and DEEA-modified volcanics were found as 2.265 and 3.689 m(2)/g, respectively. The volcanic samples were treated by using different concentrations of DEEA. The adsorption of U(VI) on natural and modified volcanics was examined as a function of the contact time, initial pH of the solution, initial U(VI) concentration, and temperature. Langmuir, Freundlich, and D-R adsorption isotherms were used to describe the adsorption. While examining the adsorption percentage and distribution coefficient, these values for unmodified volcanics were found to be 25% +/- 0.76 and 10.08 mL/g, while the values for the DEEA-modified volcanics were 88% +/- 1.04 and 220 mL/g, respectively. The pseudo-first-order and pseudo-second-order kinetic models were used to describe the kinetic data. In this study, it can be seen that the adsorption process is suitable for the pseudo-second-order kinetic model. Various thermodynamic parameters (Delta G degrees, Delta H degrees, and Delta S degrees) were calculated with the thermodynamic distribution coefficients obtained at different temperatures. The sorption process was a chemical adsorption process. The results indicated that the processes are spontaneous and endothermic
The perceived effect of digital transformation and resultant empowerment on job performance of employees in the fitness family business
No full textPurposeThe impact of technological transformations in all sectors is undeniably significant, especially in fitness family business. The aim is to examine the digital transformation perceptions of fitness centre employees and the effects of perceived empowerment on their job performance in family business in Turkey.Design/methodology/approachThe sample was 334 fitness centre employees. Four variables were evaluated (digital transformation, meaning competence, self-determination and job performance), and PLS-SEM was used.FindingsThe digital transformation process in the fitness sector can be considered as an important factor in terms of creating new business ventures. Our results showed that digital transformation perceived by family business employees had a significantly influence on the meaning competence of the employees. Also, the meaning competence of employees was a mediator between the digital transformation and job performance.Practical implicationsManagers of family businesses must take into account that an appropriate digital transformation of their products and/or services has an impact on the meaning competence of their employees. Thus, through increased competence in employee performance, the digitization of family business fitness will lead to higher employee performance and productivity.Originality/valueThis study innovates by linking digital transformation as a factor influencing the coach's own motivation and self-perceived competence in the use of technology to their job performance