Tomas Bata University in Zlín
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Advantages and disadvantages of being 'gifted': Perceptions of the label by gifted pupils
Get PDFIn addition to the opportunities afforded to them, the development of care for gifted pupils is also associated with the problematic handling of the 'gifted' label. These associations could affect several aspects of her/his life. The aim of this qualitative study was to discover the positive and negative consequences of the labelling of gifted pupils and to find their coping strategies, which would eliminate the negative consequences of labelling. Two hundred and eight intellectually gifted pupils aged ten to fifteen participated in the research. They were pupils of regular, inclusive elementary schools from the Czech Republic. The source of data was a questionnaire with open-ended questions. The positive aspects of labelling mainly concerned the academic and personal spheres, for instance, feeling good about oneself and extensive opportunities with regard to further education. Negative consequences affected the personal (problems resulting from giftedness) and academic (perfectionism, high expectations) areas, but above all, the social sphere. We discovered that gifted pupils are singled out from their peer groups, used for school work, and even bullied. The gifted pupils developed several coping strategies to deal with the negative consequences of labelling, such as helping others, conforming and denying their giftedness.Technology Agency of the Czech Republic (TAR); project Labeling of intellectually gifted children at school environment [TL03000191]TL03000191; Technology Agency of the Czech Republic, TAC
Financial capability as a function of financial literacy, financial advice, and financial satisfaction
Get PDFThere is no substantial evidence that exists in the literature to establish the link between financial advice and financial capability fully establishes, even though 'getting help' is identified as an important aspect of financial capability. This study sets out to fulfil a couple of objectives. Its primary goal is to investigate the effects that a combination of financial literacy elements (financial attitude, financial knowledge, and financial behaviour), financial advice as well as financial satisfaction have on individuals' financial capability, and secondly, to test and prescribe the improved scale of financial capability measurement. This research has been administered in Spain at an individual level. Hierarchical regression method along with Z-test were used. Regressions' outcomes reveal that financial constructs positively impact the individuals' financial capability. From the viewpoint of policymakers, it is vital to fully comprehend the significant factors influencing financial capability to plan better strategies to empower the citizens with adequate skills, abilities, and behaviour so to succeed in dealing with financial matters in daily basis. The originality and value added to the present study is two-fold. Firstly, it comprehensively examines the wide-ranging financial indicators seen as critical in determining financial capability, which remain yet not quite covered in other studies. Second. both indicators used to measure the financial capability revealed no substantial differences, therefore an improved composite scale is prescribed as useful in measuring financial capability in future research.Tomas Bata University in Zlin, Faculty of Management and Economics [IGA/FaME/2021/005]Univerzita Tomáše Bati ve Zlíně: IGA/FaME/2021/00
Review: Nanoparticles can change (bio)hydrogen competitiveness
Get PDFHydrogen has a negligible share on the global fuel market, yet it attracts a lot of investors. The main obstacle to the development of the hydrogen economy is its low cost-competitiveness. In order to meet energy demand and mitigate environmental damage, it is advisable to replace the existing fossil fuels with technologies that are more environmentally friendly and cost-competitive at the same time. Nowadays, some 97 % of hydrogen production comes from steam reforming of natural gas via energy that is obtained from fossil fuels. The production costs for 1 kg of hydrogen produced in this way, are between 2 and 4 euro, while approximately 10 kg of CO2 is emitted. The production cost of hydrogen produced by electrolysis from water is about 7 euro, 80 % of which is electricity cost. The production of (bio)hydrogen (via photobiological and dark fermentation techniques) from biowaste using renewable energy sources has recently come to the fore. This review discusses use of various types of nanoparticles (organic and inorganic) in (bio)hydrogen production. A diversity of organisms, in pure as well as mixed forms, could perhaps produce (bio)hydrogen using pure (preferably simple form) carbohydrates and biowaste as a feedstock in the existence of various forms of nanoparticles. Furthermore, the (bio)hydrogen production potential (and cost), have indeed been reported to change considerably depending on what type of nanoparticles used as well as their dosage
Low temperature 2D GaN growth on Si(111) 7 x 7 assisted by hyperthermal nitrogen ions
No full textAs the characteristic dimensions of modern top-down devices are getting smaller, such devices reach their operational limits imposed by quantum mechanics. Thus, two-dimensional (2D) structures appear to be one of the best solutions to meet the ultimate challenges of modern optoelectronic and spintronic applications. The representative of III-V semiconductors, gallium nitride (GaN), is a great candidate for UV and high-power applications at a nanoscale level. We propose a new way of fabrication of 2D GaN on the Si(111) 7 x 7 surface using post-nitridation of Ga droplets by hyperthermal (E = 50 eV) nitrogen ions at low substrate temperatures (T < 220 degrees C). The deposition of Ga droplets and their post-nitridation are carried out using an effusion cell and a special atom/ion beam source developed by our group, respectively. This low-temperature droplet epitaxy (LTDE) approach provides well-defined ultra-high vacuum growth conditions during the whole fabrication process resulting in unique 2D GaN nanostructures. A sharp interface between the GaN nanostructures and the silicon substrate together with a suitable elemental composition of nanostructures was confirmed by TEM. In addition, SEM, X-ray photoelectron spectroscopy (XPS), AFM and Auger microanalysis were successful in enabling a detailed characterization of the fabricated GaN nanostructures.Czech Science Foundation [20-28573S]; Ministry of Education, Youth and Sports of the Czech Republic (CzechNanoLab Research Infrastructure) [LM2018110]; European Commission [810626 - SINNCE, TH71020004]; BUT [FSI-S-20-6485]European Commission, EC: 71020004, 810626; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: LM2018110; Grantová Agentura České Republiky, GA ČR: 20-28573S; Vysoké Učení Technické v Brně, BUT: FSI-S-20-648
Model train controlled by microcomputer
No full textThe paper focuses on the controlling model trains by the camera. The paper deals with the analysis, design, and implementation of the embedded system for modeling track management. The main part is image processing in real-time with the following evaluation. Designed and realized product contains model railroad with sensor-controlled by an open-source platform called Arduino Mega 2560 and microcomputer Raspberry Pi 3 Model B. Programming language Wiring and scripting language Python are used for final system development.Univerzita Tomáše Bati ve Zlíně: IGA/FAI/2022/004Internal Grant Agency of Tomas Bata University [IGA/FAI/2022/004
Process management of ergonomic workplace based on augmented reality principles
Get PDFErgonomics is an important element of managing performance and productivity in a company. Nowadays, the ergonomic parameters are set in line with the implementation of the Industry 4.0 concept. The paper highlights the link between virtual reality (VR) and augmented reality (AR), when combined with the traditional ergonomic procedure. Automation and digitization contribute to a significant extent to the creation of ergonomic workplaces and the elimination of the negative effects of non-ergonomic workplaces on people. The aim of the paper is to determine the essential elements of the system process approach to ergonomics management. This is achieved through an analysis of the current approaches from Industry 4.0 and a focus on the augmented reality approach. The backbone of the triple combination of "man-machine-environment" determines the ergonomic setting of work and the workplace. Subsequently, the presented case study examines the link between ergonomic workplace principles and data analytics for VR/AR technology. The scientific contribution of the paper lies in the discussion of the case study results, which is beneficial for the ergonomic design of workplaces. © 2022 Jan Holoči, & Felicita Chromjaková, and the Centre of Sociological Research, Poland
The adsorptive behaviour of electrospun hydrophobic polymers for optimized uptake of estrogenic sex hormones from aqueous media: kinetics, thermodynamics, and reusability study
Get PDFBackground: Estrogenic hormones as micropollutants in water systems cause severe adverse effects on human health and marine life, leading to fatal diseases, such as breast, ovarian, and prostate cancer. Electrospun polymers have proven high stability and impressive performance in adsorption removal. In this study, electrospun polysulfone (PSU), polyvinylidene fluoride, and polylactic acid were prepared and characterized using scanning electron microscope (SEM), fourier-transform intrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Brunauer Emmett Teller (BET), surface area measurement X-Ray diffraction (XRD), and porometry. Results: Nanofibers possess a mean fiber diameter of 149–183 nm and a specific surface area of 1.6–6.3 m2/g. The adsorption efficiency of the simultaneous removal of estrone (E1), 17β-estradiol (E2), estriol (E3), and 17α-ethinylestradiol (EE2) in a mixed concentration was investigated using high performace liquid chromatography (HPLC). The results indicate that spun PSU fibers exhibited the highest removal of all four estrogens, with a maximum removal efficiency of 71.2%, 65.9%, 56.9%, and 36.1% and adsorption capacity of 0.508, 0.703, 0.550, and 0.354 mg/g for E1, EE2, E2, and E3, respectively. Additionally, the adsorption was optimised by varying parameters, such as concentration of adsorbate, pH, adsorbent dosage, and temperature, to statistically analyse one-way variance using ANOVA. The pseudo-second-order is best fitted for E1, EE2, and E2, while the pseudo-first-order is best for E3. The Langmuir–Freundlich isothermal model was most suitable for evaluation, and the thermodynamics depicted the adsorption to be exothermic and spontaneous. Conclusion: The results indicate that spun PSU can be an efficient adsorbent in the simultaneous elimination of estrogens from wastewater and it exhibits a high regeneration performance of over 60% after six adsorption–desorption cycles. © 2022 Society of Chemical Industry (SCI). © 2022 Society of Chemical Industry (SCI).IGA/CPS/2022/003; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: RP/CPS/2022/002, RP/CPS/2022/005Ministry of Education, Youth, and Sports of the Czech Republic [RP/CPS/2022/002, RP/CPS/2022/005]; Internal Grant Agency of TBU in Zlin [IGA/CPS/2022/003
Effect of saccharides coating on antibacterial potential and drug loading and releasing capability of plasma treated polylactic acid films
Get PDFMore than half of the hospital-associated infections worldwide are related to the adhesion of bacteria cells to biomedical devices and implants. To prevent these infections, it is crucial to modify biomaterial surfaces to develop the antibacterial property. In this study, chitosan (CS) and chondroitin sulfate (ChS) were chosen as antibacterial coating materials on polylactic acid (PLA) surfaces. Plasma-treated PLA surfaces were coated with CS either direct coating method or the carbodiimide coupling method. As a next step for the combined saccharide coating, CS grafted samples were immersed in ChS solution, which resulted in the polyelectrolyte complex (PEC) formation. Also in this experiment, to test the drug loading and releasing efficiency of the thin film coatings, CS grafted samples were immersed into lomefloxacin-containing ChS solution. The successful modifications were confirmed by elemental composition analysis (XPS), surface topography images (SEM), and hydrophilicity change (contact angle measurements). The carbodiimide coupling resulted in higher CS grafting on the PLA surface. The coatings with the PEC formation between CS-ChS showed improved activity against the bacteria strains than the separate coatings. Moreover, these interactions increased the lomefloxacin amount adhered to the film coatings and extended the drug release profile. Finally, the zone of inhibition test confirmed that the CS-ChS coating showed a contact killing mechanism while drug-loaded films have a dual killing mechanism, which includes contact, and release killing.Internal Grant Agency of Tomas Bata University in Zlin, Czech Republic [IGA/CPS/2022/001]; Ministry of Education, Youth and Sports of the Czech Republic [RP/CPS/2022/001, RP/CPS/2022/002]; Slovenian Research Agency [P2-0082, L2-2616]; Czech Science Foundation [20-28732S
The relationship between innovation leadership and employee performance
No full textInnovation leadership plays an essential role in the organization's success through team and employee performance. Most companies seek to build success in their organizations with new ideas and solutions. Organizations that best practice recommendations for managers to become innovation leaders will cultivate company and employee performance outcomes. This study reviews outstanding journal articles and other relevant publications obtained from Scopus and Web of Science databases. The literature review guides further studies about innovation leadership and employee performance, especially in the aviation industry. We conduct this review using keywords innovation leadership, team innovation, and employee performance.Internal Grant Agency of FaME TBU in Zlin [IGA/FaME/2020/011]; Southeast Asia regio
The effect of face masks on physiological data and the classification of rehabilitation walking
Get PDFGait analysis and the assessment of rehabilitation exercises are important processes that occur during fitness level monitoring and the treatment of neurological disorders. This paper presents the possibility of using oximetric, heart rate (HR), accelerometric, and global navigation satellite systems (GNSSs) to analyse signals recorded during uphill and downhill walking without and with a face mask to find its influence on physiological functions during selected walking patterns. The experimental dataset includes 86 signal segments acquired under different conditions. The proposed methodology is based on signal analysis in both the time and frequency domains. The results indicate that face mask use has a minimal effect on blood oxygen concentration and heart rate, with the average mean changes of these parameters being less than 2%. The support vector machine, a Bayesian method, the k-nearest neighbour method, and a two-layer neural network showed very good separation abilities and successfully classified different walking patterns only in the case when the effect of face mask wearing was not included in the classification process. Our methodology suggests that artificial intelligence and machine learning tools are efficient methods for the assessment of motion patterns in different motion conditions and that face masks have a negligible effect for short-duration experiments.[LTAIN19007