bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preface to the Special Issue on Computational Performance Analysis based on Novel Intelligent Methods: Exploration and Future Directions in Production and Logistics
Authors: Goli Alireza , Tirkolaee Erfan Babaee , Weber Gerhard-Wilhelm 
Published: July 2022

Abstract
This special issue of the Foundations of Computing and Decision Sciences, titled “Computational Performance Analysis based on Novel Intelligent Methods: Exploration and Future Directions in Production and Logistics”, is devoted to the application of Computational Performance Analysis (CPA) for real-life phenomena. The special issue and its editorial present novel intelligent methods as they meet with various research topics in production and logistics, especially in terms of challenges, limitations and future trends. This special issue aims to bring together current progress on the CPA, organization management, and novel models and solution techniques that can contribute to a better understanding of the CPA systems and delineate useful practical strategies. Methodologically interesting and well-documented case studies are highly recommended. Additionally, the special issue covers innovative cutting-edge research methodologies and applications in the related research field.
Design a Multi Period Closed-Loop Supply Chain Program to Supply Recycled Products
Authors: Syah Rahmad , Chetthamrongchai Paitoon , Thuc Dao Chanh , Yuminarti Umi , Murtini Sri , Iswanto A. Heri , Vasilieva Nadezhda Konstantinovna , Kireeva Natalia , Aravindhan Surendar 
Published: July 2022

Abstract
Over the course of the last decades, closed-loop supply chains (CLSC) and reverse logistics issues have attracted increasing attention owing to strict environmental laws, social responsibilities, economic interests, and customer awareness. Hence, the issue of closed-loop supply chain and reverse logistics has emerged as a field of research in the new era. This issue has received much attention because it allows recyclable products to return to their original cycle. Therefore, this study primarily intends to present a mathematical model for designing a supply chain network for recycled products. The multi-stage and multi-period objective function of the closed-loop supply chain is presented to meet that aim. In this chain, dismantling, recycling, and disposal centers are considered. The objective function is to reduce the total cost of the closed-loop supply chain. The results of optimizing the mathematical model demonstrate that this model has the necessary efficiency for use in recycled products.
Finite Dimensional Real Normed Spaces are Proper Metric Spaces
Authors: Nakasho Kazuhisa , Okazaki Hiroyuki , Shidama Yasunari 
Published: July 2022

Summary
In this article, we formalize in Mizar [1], [2] the topological properties of finite-dimensional real normed spaces. In the first section, we formalize the Bolzano-Weierstrass theorem, which states that a bounded sequence of points in an n-dimensional Euclidean space has a certain subsequence that converges to a point. As a corollary, it is also shown the equivalence between a subset of an n-dimensional Euclidean space being compact and being closed and bounded.
In the next section, we formalize the definitions of L1-norm (Manhattan Norm) and maximum norm and show their topological equivalence in n-dimensional Euclidean spaces and finite-dimensional real linear spaces. In the last section, we formalize the linear isometries and their topological properties. Namely, it is shown that a linear isometry between real normed spaces preserves properties such as continuity, the convergence of a sequence, openness, closeness, and compactness of subsets. Finally, it is shown that finite-dimensional real normed spaces are proper metric spaces. We referred to [5], [9], and [7] in the formalization.
Quadratic Extensions
Authors: Schwarzweller Christoph , Rowińska-Schwarzweller Agnieszka 
Published: July 2022

Summary
In this article we further develop field theory [6], [7], [12] in Mizar [1], [2], [3]: we deal with quadratic polynomials and quadratic extensions [5], [4]. First we introduce quadratic polynomials, their discriminants and prove the midnight formula. Then we show that - in case the discriminant of p being non square - adjoining a root of p’s discriminant results in a splitting field of p. Finally we prove that these are the only field extensions of degree 2, e.g. that an extension E of F is quadratic if and only if there is a non square Element a ∈ F such that E and (

F

a

F\sqrt a

) are isomorphic over F.
Phytosociological analysis of acidophytic alpine mat-grass swards in the Julian Alps and the Karawanks
Authors: Dakskobler Igor , Surina Boštjan , Wraber Tone 
Published: July 2022

Abstract
Acidophytic alpine mat-grass swards are rare in the alpine belt of the predominantly calcareous Southeastern Alps of Slovenia, mostly occurring where limestone is admixed with marlstone or chert. Those for which we were able to make phytosociological relevés can be classified mainly into two syntaxa: Carici curvulae-Nardetum strictae vaccinietosum gaultherioidis and Sieversio-Nardetum strictae vaccinietosum. At slightly lower elevations, in the forest zone of the subalpine plateau Pokljuka, we found similar swards occupying small areas in frost hollows with luvisol on limestone. They include character species of various subalpine-alpine sward and snow bed communities and are classified into the syntaxon Homogyno alpinae-Nardetum scorzoneroidetosum croceae.
Climate Strikes and Curricula: Insights from Norway
Authors: Tomren Tom Sverre 
Published: July 2022

Abstract
In this article, the author analyzes environmental pedagogy in the Norwegian curricula for environmental and sustainability education from 1997 to 2020. The author investigates how climate-striking youth evaluate the outgoing curricula through a survey in which 88 respondents participated. The survey reveals that young climate activists demand a more action-oriented education that emphasizes political change. The author discusses the findings against the background of radical eco-pedagogy and the works of Richard Kahn, Chet Bower, and David Orr and concludes that the youth striking against climate change is practicing the curriculum they are asking for and that schools should welcome the strikes.
Farewell with editor-in-chief, professor doctor Jan Kořenský
Authors: Faltýnek Dan , Lacková Ľudmila , Vaculíková Petra , Pivoňková Lenka 
Published: July 2022

Abstract
This article was written in memory of professor Kořenský, a very prominent personality in Czech linguistics, the founder and former editor in chief of the journal Linguistic Frontiers. The purpose of this paper is to capture essential moments in the life of Professor Kořenský, his achievements and merits in the field of linguistics, and also to describe his unique personality. This article aims to remember this linguistic genius and share these memories with other readers of Linguistic Frontiers.
A geography of creative networks: The case of a small European economy
Authors: Baláž Vladimír , Jeck Tomáš , Balog Miroslav 
Published: July 2022

Abstract
This research project analyses the effects of networking by creative and conventional enterprises at regional and inter-industry levels. It relies on a unique dataset provided by the Slovak Creative Voucher Scheme and has some novel elements. We used direct evidence of industry locations from projects developed by creative industries rather than proxies. Network analysis was applied to establish major patterns in regional and inter-industry cooperation by creative and conventional firms. Regression models were used to analyse the network structure. The findings from quantitative analyses were complemented with evidence from qualitative methods. The network included a wide variety of cooperating partners. A sample of creative firms supported by the Creative Voucher Scheme cooperated with partners from no less than 60 industries. Spatial proximity was a key condition for cooperation, enabling face-to-face contacts and the development of a trusting relationship between creative firms and their clients.
Resource efficiency and decarbonisation of economies in the European Union
Authors: Clodniţchi Roxana , Tudorache Octavia 
Published: July 2022

Abstract
People have always been interested in improving their quality of life. But how is this possible when the population is constantly growing, and the planet’s resources are dwindling? The efficient use of resources is not only believed to increase the general quality of life but also to contribute to the creation of a cleaner environment. But what is the relation between resource efficiency and a cleaner environment? The European Commission and the United Nations have been dealing with this key issue for many years now and the EU has forced member countries to meet certain targets. This paper presents some of the UN and EU’s policies with regard to climate change and resource efficiency and offers an independent evaluation of the achievements of Member States. We assumed that the implementation of the objectives of the EU climate and energy package improves the resource productivity and reduces its negative impact on the environment, relation analysed with the help of a linear regression model. Further, we have performed a critical study on the performance of EU-member states in meeting their GHG-emission targets correlated with the resource intensity of their economies, modelled using Microsoft Excel. Resource efficiency and the low-carbon economy have emerged as central themes in global discussions on the transition to a sustainable economy, and this paper sheds new light onto the connection between the two subjects.
The status of the European Stonechat (Saxicola rubicola) in Hungary: a review
Authors: Csörgő Tibor , Gyurácz József , Lovászi Péter , Karcza Zsolt , Szép Tibor , Harnos Andrea 
Published: July 2022

Abstract
In 2021, the European Stonechat (Saxicola rubicola) became the ‘Bird of The Year’ in Hungary, which makes it very timely to summarise our knowledge about the status of the species in the country and to emphasise conservation priorities.
In Hungary, the species is a common, widespread breeder of dry roadside grass strips, abandoned ploughlands, bushy slopes and vineyards. It is most likely in the arid habitats between the Danube and Tisza and east of the Tisza. The largest populations also breed in these regions. The Hungarian population was estimated at 195,000–210,000 pairs between 2014 and 2018. The breeding population halved between 1999 and 2018, though it was stable until 2004. The breeding period begins from late March to early April and lasts until the end of July. First males arrive in February, and spring migration peaks in early March. Autumn migration peaks in late September. Few may overwinter. The number of birds ringed in Hungary since 1951 is 13,484, of which 1,401 were juvenile. Three birds ringed in Hungary were found abroad (Italy 2, Greece 1), and two specimens marked abroad (Croatia, Italy) were found in Hungary. The oldest bird was recaptured 1679 days after its ringing day in Hungary. The average body mass of juveniles increased significantly for both sexes by an average of 0.9 grams over 22 years. In the case of all age and sex groups, the average body mass increased during the autumn season. The average wing length of adults also increased during the autumn. The arrival time of either sex during spring migration did not change significantly between 1999 and 2020. In the case of all age and sex groups, the arrival time shifted later in autumn migration. The European Stonechat belongs to the red list category Near Threatened in Hungary.
Higher level taxonomy affects body mass and femur length as predictors for egg size in birds
Authors: Deeming D. Charles 
Published: July 2022

Abstract
Interpretation of fossil material using comparative anatomy often relies on relationships predicted from data collected from extant species. Some years ago, it was suggested that femur length of birds could be predicted from egg mass but this relationship was counter-intuitive because egg mass is usually related to a measure of body size. The original analysis was also not phylogenetically controlled. This study used the same data to determine phylogenetically controlled relationships for body mass versus egg mass, and egg mass versus femur length. Further analysis showed that order was important in the prediction of egg mass from either body mass or femur length. For some orders, the single regression estimate through all data significantly over-, or under-estimated egg mass. This problem was more pronounced for femur length compared with body mass. Extrapolation of the relationship between femur length and egg mass for large extinct birds seemed to be provide useful data for the Gastornithidae but under-estimated egg mass for other large bird species of a variety of families. Use of equations derived from extant birds to gain insight into the reproductive biology of extinct species needs to be undertaken with great care.
Observations on parental care of the Eurasian Spoonbill (Platalea leucorodia) during the post-fledging dispersal
Authors: Pigniczki Csaba 
Published: July 2022

Abstract
The number of available publications on the post-fledging parental care of wading birds (herons, ibises, spoonbills, and storks) and many other bird species is limited. In this study, I summarised the available knowledge collated from the observations of the Eurasian Spoonbills (Platalea leucorodia) in Hungary. A part of the available data is based on observations of colour-ringed individuals. The latest feeding event of a young by its parent was observed at Lake Csaj on 5 October 2020. The youngsters were being fed by their parents for 43 days (observed maximum) during the post-fledging dispersal. However, I estimated that this behaviour could even last for as long as 53 days. The parents lead (care for) their yearlings for 51 days (observed maximum), again I estimated that it could potentially last for a longer period of 63 days. The estimated length of parental care and feeding period could be longer or a little bit shorter during the post-fledging dispersal because it was not possible to follow the life of the families exactly. During parental care (feeding and leading of chicks), the majority of the colour-ringed Spoonbills were observed 2–26 km to the natal colonies of yearlings and the breeding colonies of the adults. However, on some occasions, they were 111–145 km far from those colonies. During the post-fledging dispersal, Spoonbills care for their chicks for a longer time than the European breeding heron species. A possible reason could be that the bills of young Spoonbills are not appropriate for fishing effectively at the beginning of fledging because of their shorter length and their less efficient hydrodynamic effect during lateral sweeping. Another reason could be that Spoonbills are tactile foragers and need more time to learn fishing. Based on data of a juvenile followed by a GPS device, learning the migration route and stop-over sites from parents or experienced adults could be important for Spoonbills, otherwise, young migrating alone with no accomplished individuals may not find the optimal routes and the proper stop-over areas. In the case of Spoonbills, we still do not know exactly the features of parental care during the post-fledging dispersal and have even less data on it during the migration. Thus, I request potential observers along the Adriatic Flyway to record the observations of parent-offspring interactions (feeding by parents, begging) particularly the Hungarian colour-ringed adults and/or young individuals and send data to the author’s e-mail address.
(Im)Perfect Descriptive Representation: Slovenia in the Spotlight
Authors: Johannsen Lars , Krašovec Alenka , Čehovin Gregor 
Published: July 2022

Abstract
The failure to ensure descriptive representation is one of the challenges facing democracy. In the literature, it is suggested that, among others, imperfect descriptive representation is connected to insufficient legitimacy as well as low trust in political institutions. This paper analyses the link between descriptive representation and both people’s satisfaction with the way democracy is working in practice and trust in political institutions in Slovenia which, despite 30 years of democratic rule, are characterised by persistent low trust and satisfaction levels.
Considering longitudinal public opinion data and a database on the composition of the Slovenian parliament (eight terms) in terms of gender, age groups and education, we find that also in Slovenia especially women, the young, the elderly and those with a basic education are underrepresented, with this being reflected in trust in the parliament and people’s perception of the way in which democracy is working. Still, the fact such underrepresentation has continued for some time (regardless of certain changes) means these findings are only part of the explanation.
Impacts of Renewable Energy on CO2 Emission: Evidence from the Visegrad Group Countries
Authors: Uğurlu Erginbay 
Published: July 2022

Abstract
EU policies aim to develop renewable energy share in both production and consumption of total energy and increase the efforts to mitigate climate change. As relatively new EU members, the Visegrad countries aimed to adopt these targets. Therefore, climate change mitigation and CO2 emissions reduction are important issues in Visegrad countries. In this paper, we examine the renewable energy consumption and CO2 emissions relationship in the Visegrad countries. We use the Fully Modified Ordinary Least Square (FMOLS) model to estimate the long-run relationship between the variables using annual data from the period of 2000–2018. The variables used are CO2 emissions, GDP per capita, renewable energy consumption and urban population. The results show that there is cointegration among the variables. The estimated FMOLS model shows that GDP and population increase CO2 consumption, and renewable energy consumption decreases CO2 emissions. Results show that renewable energy consumption has a decreasing effect on CO2 emissions.
Smart-Readiness Assessment of a Complex Residential Building in Ukraine
Authors: Adegov Olexandr , Shekhorkina Svitlana , Babenko Maryna , Lyahovetska-Tokareva Maryna , Kudryavcev Olexandr 
Published: July 2022

Abstract
Smart building concepts are a relevant topic for the Ukrainian building sector. Although the current policy is mostly dedicated to the improvement of the current energy-saving situation in the building stock, the concept discussed could provide valuable inputs in the realization of the existing strategy. For an assessment of the expected positive impact of the implementation of smart indicators on building operation and renovation processes, as well as the predictions of scenarios of the range of the application of smart instruments, the research presented proposes a thorough analysis of the building stock in Ukraine and, in a real pilot case, the assessment of smart-readiness indicators (SRI) for a complex multi-family building. The case scenarios used, which are derived on the basis of SRI and a processed questionnaire among the habitants, are considered as the reference foundation for a practical application and disseminating the concept for similar cases.
Wave Run-Ups and Overtopping Affected by Oblique Wave Approaches and Currents
Authors: Špano Miroslav , Bornschein Antje , Pohl Reinhard , Riha Jaromir , Schüttrumpf Holger 
Published: July 2022

Abstract
To quantify the effect of a current on the height of a wave’s run-up and overtopping combined with an oblique wave approach, the “FlowDike” hydraulic research project was carried out. Tests were performed on two dike slopes of 1:3 and 1:6. Waves were generated across (perpendicular to) the physical model and also inclined in-plane to the stream axis. Oblique waves were generated both towards and along the flow’s direction. The effect of the current and of the wave direction on the height of the wave run-up and amount of the wave overtopping was expressed by means of a combined correction factor for the wave’s inclination and flow velocity. The results of the research confirmed that the flow velocity had only a small effect.
Possibilities of Applying Multivariable Regression in Groundwater Data Series along a Riverbank Area
Authors: Wagner Flora 
Published: July 2022

Abstract
Groundwater modelling needs a large number of piezometer well data, which is unfortunately not always available as earlier registered data series are not always continuous. The reconstruction of data series with gaps was previously examined on a small riverside pilot area with the help of multiple regression, this method has now been tested at a 50-times larger environment. The results show that the reconstruction of the data series with this method works with average monthly groundwater levels and that applying multiple regression with the independent variables being one of the wells and the river optimizes the accuracy of the calculated data series, even if the relationships between the river and the wells are weak. The effect of the multiple regression on the accuracy is greater if the data series is sparser.
Determinants of International Tourism Demand in India: An Augmented Gravity Model Approach
Authors: Shah Imtiyaz Ahmad , Nengroo Tariq Ahad , Haq Imtiyaz ul 
Published: July 2022

Abstract
This study examines the determinants of international tourism demand in India using time series data from 1991-2019 from the top 15 source tourist countries. To do this, the study employed an augmented gravity model estimated using a two-step panel fixed-effect model to identify the factors affecting tourism demand in India. These factors include the income of both India and its origin countries. The domestic exchange rate of both India and the source country is included to capture the impact of the cost of living and prices of goods and services. Supporting variables like distance, common border, and common language between India and source of origin country were also identified. Further, it includes the impact of similarity and common membership to SAARC. Empirical results indicate that the level of Indian income, language, and similarity have a positive impact on tourism inflow to India. On the other hand distance and the domestic exchange rate of India have negative impacts. Further, the income level of origin countries has a significant positive impact. Also, common membership to SAARC and the common border between India and the origin country have a significant positive impact on tourism demand in India. Furthermore, international demand for Indian tourism is not affected by the relative price in the origin country.
Modelovanje i implementacija sistema za pomoć pri parkiranju
Authors: Pavković Mirjana , Kaštelan Ivan 
Published: July 2022

U radu je predstavljena implementacija sistema za pomoć pri parkiranju u vozilima. Opisana je implementacija algoritma za obradu ulaznih slika sa četiri kamere koji se sastoji od dva dela. Jedan deo predstavlja kalibraciju kamere, a drugi generisanje izlazne slike sa pogledom odozgo gde su korišćene različite operacije kao što su ispravljanje distorzije, transformacija perspektive i spajanje slika. Sistem takođe sadrži šest ultrasoničnih senzora pomoću kojih se proverava udaljenost prepreka u neposrednoj blizini vozila. Opisane su funkcije, moduli i softverske komponente sistema. Performanse algortima su testirane pomoću Qt razvojnog okruženja.
ИДЕЈНО РЕШЕЊЕ КАНАЛИСАЊА УПОТРЕБЉЕНИХ И АТМОСФЕРСКИХ ВОДА НАСЕЉА ГОСПОЂИНЦИ
Authors: Којић Александар , Stipić Matija Stevan 
Published: July 2022

У раду је приказано идејно решење одвођења употребљених и атмосферских вода насеља Госпођинци. Представљен је пример канализационог система где се због топографије терена јављају велике дубине укопавања цевовода, што изискује изградњу црпних станица. Хидрауличка анализа одвођења употребљених и атмосферских вода из предметног насеља извршена је помоћу програмског пакета EPA SWMM 5.1.