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Modeling determinants of the Generation Z regional perception on the periphery: To stay or to leave
No full textRegional attractiveness plays a crucial role in regional economic development and competitiveness. Despite interest in out-migration from peripheral regions, most studies overlooked Generation Z members in perceiving these factors. Therefore, the paper aims to examine the effect of the regional perception of Generation Z on their expectation of out-migration from the peripheral region. The focus group comprised 56 respondents (stakeholders) selected through purposive sampling by regional development agencies in three peripheral regions of the Czech Republic to identify regional perception indicators. The exploratory factor analysis and the principal component analysis were used to detect latent constructs of the identified regional perception indicators. Logistic regression was used to model the association between latent constructs and Generation Z’s intention to leave or to stay in the peripheral region. Economic, social, and environmental dimensions were detected as latent constructs of regional perception indicators. The first dimension represents smartness and opportunities; the second, openness, is accompanied by culture; and the third, a safe and clean environment. The estimation results suggest the effect of the economic and lifestyle dimensions (β = 0.528, p < 0.001) and the social dimension (β = 0.292, p < 0.01) of the regional perception on the intention of Generation Z to leave or stay in the peripheral region, without the effect of the environmental dimension (β = 0.033, p = 0.740). The paper emphasizes the importance of economic, lifestyle, and social indicators of regional perception in place-based policies to retain Generation Z in the peripheral regions.TL0300052
Migration processes and determinants: the case of the Slovak Republic
No full textWhile the Slovak Republic is not one of the traditional immigration destinations, in recent years, the situation has changed. The current paper aims to analyse the migration processes in the Slovak Republic and identify the determinants for immigration. The results show that during the last three decades, the accession to the EU and Schengen area affected the migration patterns in Slovakia the most. One of the crucial determinants causing labour migration to the country is the domestic labour demand and labour shortage due to emigration flows. While the COVID-19 pandemic did not significantly influence the migration processes in the country, the restrictive measures are affecting the employment of foreigners. On the other hand, the Russian-Ukrainian conflict has caused unprecedented immigration flows to the country. The latter calls for a modernisation of immigration and integration policies that will lead to a more efficient labour market and sustainable economic growth in the Slovak Republic. Creating an Immigration and Naturalisation Office, with the aim of bringing together all migration processing and provision of related services is a necessary step forward in migration policy management. This article focuses on the migration developments shaping the migration policy in Slovakia in the near future and provides policy recommendations.Vedecká Grantová Agentúra MŠVVaŠ SR a SAV, VEGA: 1/0037/2
Unlocking the potential of keyword extraction: The need for access to high-quality datasets
Get PDFKeyword extraction is a critical task that enables various applications, including text classification, sentiment analysis, and information retrieval. However, the lack of a suitable dataset for semantic analysis of keyword extraction remains a serious problem that hinders progress in this field. Although some datasets exist for this task, they may not be representative, diverse, or of high quality, leading to suboptimal performance, inaccurate results, and reduced efficiency. To address this issue, we conducted a study to identify a suitable dataset for keyword extraction based on three key factors: dataset structure, complexity, and quality. The structure of a dataset should contain real-time data that is easily accessible and readable. The complexity should also reflect the diversity of sentences and their distribution in real-world scenarios. Finally, the quality of the dataset is a crucial factor in selecting a suitable dataset for keyword extraction. The quality depends on its accuracy, consistency, and completeness. The dataset should be annotated with high-quality labels that accurately reflect the keywords in the text. It should also be complete, with enough examples to accurately evaluate the performance of keyword extraction algorithms. Consistency in annotations is also essential, ensuring that the dataset is reliable and useful for further research.[015PBC-005
Influence of heat treatment on the chemical, physical, microbiological and sensorial properties of pork liver pâté as affected by fat content
Get PDFThe novelty of this study is the investigation of the effect of different heat treatments and, simultaneously, the effect of different fat levels on the quality of pork liver pâtés. Hence, this study aimed to evaluate the effect of heat treatment and fat content on selected properties of pork liver pâté. For this purpose, four batches of pâtés with two different fat contents (30 and 40% (w/w)) and two different heat treatments (pasteurisation: target temperature 70 °C, holding time of 10 min; sterilisation: target temperature 122 °C, holding time of 10 min) were manufactured. Chemical (pH, dry matter, crude protein, total lipid, ammonia, and thiobarbituric acid reactive substances (TBARS)), microbiological, colour, textural, rheological, and sensory analyses were performed. Both different heat treatment and fat content affected most of the parameters observed. Sterilisation ensured the commercial sterility of the manufactured pâtés, resulting in elevated TBARS values, hardness, cohesiveness, gumminess and springiness, and increased rheological parameters (G′, G″, G*, and η*), as well as colour changes (decrease in L* and increase in a*, b*, and C* values) and deterioration of appearance, consistency, and flavour also being detected (p < 0.05). Higher fat content caused similar variations in the textural and viscoelastic properties, i.e., the increase in hardness, cohesiveness, gumminess and springiness, and also in G′, G″, G*, and η* (p < 0.05). However, the colour and sensorial parameters changed in different ways compared to the changes induced by the sterilisation effect. Overall, the observed changes might not be desirable for some consumers and further research would be appropriate to improve especially the sensorial attributes of sterilised pork liver pâtés.Univerzita Tomáše Bati ve Zlíně, (IGA/FT/2023/007); Ministerstvo Obrany České Republiky, MOČRTomas Bata University in Zlin [IGA/FT/2023/007]; Ministry of Defence of the Czech Republi
Life expectancy in glioblastoma patients who had undergone stereotactic biopsy: a retrospective single-center study
Get PDFObjective. The best results in glioblastoma (GBM) are obtained through aggressive treatment comprising maximally radical but safe resection followed by chemoradiotherapy. However, certain patients will undergo only stereotactic biopsy. This paper aims to evaluate life expectancy in GBM patients who underwent only stereotactic biopsy, including the effect of subsequent oncological treatment.Patients and Methods. Patients with confirmed GBM histology who had undergone stereotactic biopsy between June 2006 and December 2016 were retrospectively selected. Each patient had received a CT scan, followed by an MRI scan with a contrast agent. None of the patients were amenable to microsurgical resection. Results. Of the 60 patients, 41 (69%) received no subsequent oncological treatment, while 14 (23%) underwent isolated radiotherapy. Mean survival time of all patients was 2.8 months. Those who received no additional treatment had an average survival time of 2.3 months; patients who received any type of oncological treatment was 3.7 months. Of these, those receiving radiotherapy alone had a mean survival of 3.1 months. Patients who received oncological treatment with the Stupp protocol had a survival time of 6.6 months.Conclusion. Diagnostic and surgical advances related to GBM treatment mean that radical resections can be performed even in eloquent brain areas. However, patients not indicated for resection will experience a major reduction in life expectancy. Patients who underwent stereotactic biopsy and received some form of oncological treatment experienced slightly increased overall survival relative to patients with a natural disease course. Patients with favorable clinical factors reacted better to treatment.Ministry of Health of the Czech Republic [NU21-03-00195, 00098892]Ministerstvo Zdravotnictví Ceské Republiky, MZCR, (NU21-03-00195); Ministerstvo Zdravotnictví Ceské Republiky, MZCR; FNOL, (00098892
The potential of using virtual reality in the field of security control in public space
No full textThis paper discusses the potential use of virtual reality technology in the security and protection of the population. Experimental using the properties of the scanning device, the actual public environment is recorded in a panoramic 2D image and subsequently adjusted for the needs of display in a virtual environment. The text also lists selected safety requirements. The article discusses the conclusions and potential of the application as a secondary tool in security issues. © 2022 IEEE
Limitation of the advanced technology zone
No full textThis article deals with the limitation of the Advanced Technology Zone (ATZ) which is one of the common methods of connecting analogue alarm detectors to the Control and Indicating Equipment (CIE). The ATZ model can handle up to three independent detectors. The modern alarm system can have thousands of detectors. However, the standard ATZ mode is not able to provide the sufficient number of alarm detectors. The new design should determinate and increase the maximal number of connected detectors to the CIE by using the low-tolerance bypassing resistors. All created ideas come with the technical details and the design was tested to ensure flawless and reliable operation in real time. © 2018, Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.IGA/CebiaTech/2018/004; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: LO1303, MSMT-7778/2014; European Regional Development Fund, ERDF: CZ.1.05/2.1.00/03.008
LED based universal lighting system
No full textRecently, the LED based interior lighting systems are passing through the boom. LED lamps represent proven and energetically convenient technology. However, the technicians deal with several problems resulting from replacing the conventional light sources with LED lamps. One of the most disadvantageous differences between the conventional and LED lamps are the VA-characteristics of the LEDś PN junctions. Unlike bulbs and fluorescent tubes, the LEDs must be supplied with constant DC current in order their stability in light flux and their nominal service time were reached. On the other hand, dealing with this disadvantage can lead to more universal and comfort solutions, as demonstrated in this paper. Because there are no general standards used at employing the LED lamps, in this paper we would like to introduce one of the possible solutions that contributes to higher variability and comfort of the interior lighting with LED lamps. Copyright © (2012) by Danube Adria Association for Automation and Manufacturing (DAAAM)
How can V-I characteristics help in counterfeit component detection
No full textThe counterfeit electronic components represent a serious problem nowadays. This paper illustrates a V-I characteristic based counterfeit detector application possibilities. The electronic component V-I characteristics express a relationship between the current flowing via a chosen couple of pins, and the voltage applied on those pins. The applied voltage course follows a certain function like sinus, triangle or ramp between safe limits. The V-I characteristics of an individual component type can differ according to production technology, according to particular manufacturer, or according to the measurement conditions itself. The natural differences can be subsumed in the model component pin print which can be used for the comparative analysis aimed at discovering unnatural differences caused by improper treatment, failure or by the counterfeiting process
Inner dynamics of particle swarm optimization interpreted by complex network analysis
No full textIn this paper, we present the relation between the inner dynamics of the particle swarm optimization algorithm and the properties of a complex network recording the information transfer in the population. Using population diversity as an example, we argue that the complex network analysis is a viable tool for assessing the state of the population and the eventual necessity of an adaptive intervention.IGA/CebiaTech/2022/00