Manisa Celal Bayar Üniversitesi Akademik Arşiv Sistemi
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The relationships between corporate sustainability and market value: mediating role of revenue and moderating role of profitability
No full textThis study attempts to analyze the relationships between corporate sustainability performance and market value. We employ 2018-2022 annual data obtained from Refinitiv ESG Database comprising 5450 companies. We utilize Hayes Process Modeling to investigate this relationship and also the mediating role of revenue and the moderating role of profitability in this relationship. Our findings show that all corporate sustainability performance measures (overall ESG, environmental pillar, social pillar, and governance pillar scores) have a significant relationship with the market value of firms. Total revenues seem to mediate the relationship between corporate sustainability performance and market value. The direct effect of corporate sustainability performance measures on the market value as well the indirect effect of corporate sustainability performance on market value through revenues is moderated by profitability (Return on Assets). Our findings may provide valuable insights for companies seeking to leverage corporate sustainability performance to improve market value
Assessing the Spiritual Needs and Practices of Oncology Patients in Turkey
No full textThe purpose of this study was to assess the oncology patients' spiritual needs and activities. Besides, the study was to provide clinical evaluation of the feasibility and usefulness of the Patients Spiritual Needs Assessment Scale. This descriptive and cross-sectional study was performed by using a demographic and spiritual practices questionnaire, the Turkish version of the Patients Spiritual Needs Assessment Scale. The results of our study demonstrated that the most common spiritual needs of patients with cancer were to address issues before death and dying (100%), feel a sense of peace and contentment (94.8%), and for companionship (93.5%). Spiritually assessing a patient with cancer requires knowledge of how spiritual needs may manifest and how to talk with a client about his or her spiritual needs. These findings can help nurses to begin this process of providing spiritual care for patients with cancer
Factors Affecting QT Dispersion During Hemodialysis in End-Stage Renal Disease Patients
No full textAim: To investigate the situation of the cardiac arrhythmia in the cases within the chronic haemodialysis program and its pathogenesis. Materials and Method: Sixty-four patients who admitted to the department of nephrology in our hospital with chronic renal failure requiring haemodialysis were taken into our study. In order to determine and asses the QT dispersion before and after haemodialysis, conventional ECG records with 12 derivations were taken. Results: Pre-haemodialysis QT and QTc dispersion were calculated as 49.6 +/- 24 msn and 57 +/- 29 msn; post-haemodialysis QT and QTc dispersion were calculated as 75 +/- 33 msn and 93 +/- 38 msn, reflecting significant changes (p<0.001). Of the electrolyte values taken before and after haemodialysis, K+ was shown to have a significant change (p<0.001). Positive correlation was observed between the decrease in K+ and the increase in QT dispersion (p<0.05). Negative correlation was observed between the QT dispersion increase and the amount of ultrafiltration (p<0.05). Discussion: QT and QTc dispersion increases were affected by the decrease in K+ value and the amount of ultrafiltration that occurred during haemodialysis. This indicates that the gradual reduction in K+ and optimization of ultrafiltration levels will increase the threshold of arrhythmia being one of the causes of cardiac mortality
Effect of Boronizing and Shot Peening on the Fatigue Properties of an Iron Based FeCu-Graphite P/M Material
No full textIron based materials manufactured by powder metallurgy (P/M) method are widely used in industry. These materials are very important in applications where no machining is required, they can also be used as journal bearing material due to their self-lubricated property, and can be used for applications in the medical industry. In this study, powder metal parts were manufactured from composites based on FeCu-graphite by P/M method. Fatigue test was carried out on manufactured samples, which were only treated by boronizing or boronizing and shot peeing. The fatigue properties of these parts were investigated by a rotating bending fatigue test rig
Transient dynamic analysis of dam-reservior interaction by coupling DRBEM and FEM
No full textIn this paper, time domain dynamic analysis of dam-reservoir interaction is presented by coupling the dual reciprocity boundary element method in the infinite fluid domain and the finite element method in the solid domain. An efficient coupling procedure is formulated by using sub-structuring method. Sommerfeld's boundary condition for far end of the infinite domain is implemented. To verify the proposed scheme, numerical examples are carried out to compare with the available exact solutions and results of the finite-finite element coupling
INVERTED DECOUPLING PID CONTROLLER DESIGN FOR A MIMO SYSTEM
No full textEliminating loop interaction is a critical issue in the control of Multi Input Multi Output (MIMO) systems. In this study, an experimental setup, Festo Didactic MPS-PA, is used as MIMO system. Inverted decoupling PID method is applied to the system to eliminate the loop interactions of MIMO system. For this purpose, firstly, the system is modelled. Then, decoupler blocks are designed to eliminate the loop interactions. Finally, the modelled system is simulated, and experiments are performed on the real system. The effect of inverted decoupling PID control on the system performance and the effect of classical PID control on the system performance are compared
Hand function assessment in patients receiving haemodialysis
No full textObjective: To assess the usefulness of Duruozs Hand Index (DHI) in patients undergoing haemodialysis. Methods: Patients receiving haemodialysis for more than 2 months were recruited randomly. Demographic, clinical and functional characteristics of patients were evaluated. Functional assessment was performed with DHI, Hand Functional Index (HFI), Health Assessment Questionnaire (HAQ), Purdue Pegboard, grip strength and 3 kinds of pinch strengths. DHI was correlated (Spearman's) with the other functional parameters in assessing the convergent validity and with non-functional parameters in assessing the divergent validity Results: Sixty patients with a mean age of 50.05 were recruited. The average duration of haemodialysis was 55.02 months. DHI is significantly correlated with HAQ, HFI, Purdue Pegboard scores, grip strength and 3 types of pinch strengths while no significant correlation was found with non-functional parameters. Conclusions: DHI is a practical scale which is efficient in assessing accurately the functional disability of the hand in patients receiving haemodialysis
A network meta-analysis of the association between patient traits and response to regular dosing with ICS/long-acting β2-agonist plus short-acting β2 agonist reliever or maintenance and reliever therapy for asthma
No full textIntroduction: Current treatment for moderate-severe asthma with inhaled corticosteroid (ICS)-based therapy can follow two strategies: a single inhaler maintenance and reliever therapy (MART) regimen, or regular dosing with ICS/long-acting beta(2)-agonist used as maintenance therapy plus a separate short acting beta(2)-agonist reliever inhaler. It would be clinically useful to understand the potential of patient traits to influence regular dosing or MART treatment outcomes. Objectives: A systematic literature review (SLR) and meta-analysis was conducted to identify specific patient traits that may predict improved clinical outcomes with regular dosing or MART. Results: The SLR identified 28 studies in patients with moderate-severe asthma assessing regular dosing or MART treatments and reporting the traits and outcomes of interest. Network meta-regressions found no significant difference in the relative efficacy of regular dosing as compared with MART on any of the clinical outcomes (exacerbation rate, time to first exacerbation, FEV1, reliever use and adherence) for any of the patient traits (baseline lung function, baseline ACQ, age, BMI, and smoking history) evaluated. However, some trends towards traits influencing treatment efficacy were identified. Inconsistent reporting of traits and outcomes was observed between trials. Conclusions: The analysed patient traits evaluated in this study were associated with similar efficacy for the analysed outcomes to either regular dosing or MART; however, trends from the data observed encourage future analyses for possible identification of additional traits, or a combination of traits, that may be of interest. More comparable reporting of clinically important traits and outcomes would improve future analyses
Comparison of blood carbonic anhydrase activity of athletes performing interval and continuous running exercise at high altitude
No full textThe effects of high-intensity interval and continuous exercise on erythrocytes carbonic anhydrase (CA, EC 4.2.1.1) activity levels were scarcely investigated up until now. Here we present a study focused on the CA activity from erythrocytes of athletes experiencing interval and continuous training for 6 weeks, during cold weather and at high altitude (> 1600 m). We observed a 50% increase in the blood CA activity at the second week after initiation of the training in both interval and continuos running groups, whereas the control group did not experience any variation in the enzyme activity levels. In the trained individuals a mild decrease in their body mass, BMI and an increased were also observed. The CA activity returned at the basal values after 4-6 weeks after the training started, probably proving that a metabolic compensation occurred without the need of an enhanced enzyme activity. The unexpected 50% rise of activity for an enzyme which acts as a very efficient catalyst for CO2 hydration/bicarbonate dehydration, such as the blood CA, deserves further investigations for better understanding the physiologic basis of this phenomenon
MORPHOLOGY, ANATOMY, PALYNOLOGY AND SEED MICROMORPHOLOGY OF VERBASCUM X SPLENDIDUM BOISS. (SCROPHULARIACEAE)
No full textVerbascum is the one of the taxonomically difficult genus in the Scrophulariaceae family. The genus represented by 243 species with addition of 129 hybrids. 193 of them are endemic in Turkey. Especially Verbascum x splendidum is located in Turkey and Greece. In the present study, morphological, anatomical, palynological and seed properties of Verbascum x splendidum was investigated. According to results, in the anatomical study, the xylem elements were occupied a considerable area in the cross-section of root. The upper part of the epidermis cells in the stem cross-section was covered a distinct cuticle layer. The main vein of the leaf was shaped as bicollateral vascular bundle. Idioblasts weren't observed in the epidermis of the leaves. The seeds were dark brown coloured and prismatic-oblong shaped and alveolate surfaced. The Size of seeds were determined as 0.5-0.6 x 0.3-0.4 mm. Hilum was short and orbicular. The seed coat ornamentation was reticulate-rugose, and the pollen shape of V. x splendidum was subprolate. The shape of aperture was tricolpate, sculpture was tectate, and exine ornamentation was reticulate. In conclusion, in this study we were determined comprehensive morphological, anatomical, palynological and seed micromorphological of V. x splendidum