bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identification of Regional Smart Specialisations on the Basis of Aggregate Measures – A Case of the Dolnośląskie Voivodeship
Authors: Bal-Domańska Beata , Sobczak Elżbieta , Stańczyk Elżbieta 
Published: August 2020

Abstract

Research background: Strengthening endogenous potentials, enhancing competitive advantage based on research and innovation remains an important component of regional development policy. Over the years this task has been carried out through e.g. the identification and support focused on smart specialisations.

Purpose: The purpose of the assessment was to identify smart specialisations in the Dolnośląskie voivodeship and evaluate their competitiveness against the background of other voivodeships.

Research methodology: The set of diagnostic indicators as well as the dynamics and location measures calculated on their basis, and also linear ordering methods using a weights system (Synthetic Measure of Smart Specialisations – SMSS) were used to identify regional smart specialisations. A statistical analysis was conducted on the basis of data at the level of PKD divisions (Polish Statistical Classification of Economic Activities; NACE is the EU equivalent). The identification was carried out taking into account the period 2012–2017 and focused primarily on 2017.

Results: As a result, 4 RSSs were identified, of which the first two are the mining of non-ferrous metal ores and the production of motor vehicles.

Novelty: The study proposes, based on the example of the Dolnośląskie voivodeship, the possibility of using linear ordering methods in determining the region’s smart specialisations (RSS), i.e. unique regional qualities and assets, which may constitute its competitive advantage, supported by appropriate research and development facilities and essential for the development of modern and innovative sectors of the economy.
Dividend Aristocrats – A Comparative Analysis of Polish and American Dividend Companies During the Period of 2009–2017
Authors: Jabłoński Bartłomiej 
Published: August 2020

Abstract

Research background: This article describes the issue of dividend companies that are components of the WIG index and S&P 500 during the period 2009–2017.

Purpose: The aim of the study was to identify similarities and differences in dividend payments by issuers during the period 2009–2017.

Research methodology: It describes the assessment of investments in companies on the basis of the continuity and variability of dividends paid (taking into account the rate of dividend growth and the cumulated rate of dividends, statistical measures – median and standard deviation), as well as the comparison of issuers from the Polish and US stock exchange.

Results: The results of the study confirm the existence of differences in dividend pay-outs by companies listed on both exchanges.

Novelty: First of all, Polish dividend companies are characterised by a higher average annual dividend growth rate and an average annual rate of return. What is more important, the average accumulated dividend (as well as its median) of companies from the WIG index is higher than the same group of companies belonging not only to the S&P 500 index companies, but also to American dividend aristocrats.
Differences in the Income Distribution of Households Run by Men and Women by Voivodeships
Authors: Landmesser Joanna Małgorzata 
Published: August 2020

Abstract

Research background: Household income depends on its demographic composition, age and education of its members, place of residence and many other factors. In our work, we concentrate on the income distribution of Polish households.

Purpose: The study aims to compare the household income distributions in Polish voivodeships, taking into account the gender of the family head. We provide evidence on the magnitude and determinants of regional differences in gender-specific income disparities.

Research methodology: In order to move beyond estimation based on mean values, we apply the Residual Imputation Approach and extend the Oaxaca-Blinder decomposition procedure to different quantile points along the income distribution. To describe the differences between two income distributions we construct a counterfactual distribution and decompose the inequalities into explained and unexplained components.

Results: The regional variation of the gender income gap has been explained with individual and jobrelated characteristics. There exists an important diversity in the size of the gender income gap across the Polish provinces. The results obtained for 16 voivodeships allowed us to group them into four clusters: heavily industrialized voivodeships with a large income gap, weakly industrialized with a low income gap, voivodships with large agglomerations characterized by a low gap, and medium-developed voivodeships with a large, U-shaped gap.

Novelty: Our results provide novel insights into the regional dimension of the income gap.
Efficiency Frontiers in Treating Lifestyle Diseases
Authors: Rozpędowska-Matraszek Danuta J. 
Published: August 2020

AbstractResearch background: Following a rational health policy by the state is tantamount to having knowledge of society’s health status and health affecting factors. It has become particularly important to focus on the 21st century diseases resulting in premature deaths. That objective dominated the 2016 Act on Public Health and the 2016–2020 National Health Programme connected with it.Purpose: The aim of the paper is to present the results of an analysis concerning hospitals’ technical efficiency assessment in treating diseases of civilization in Poland by provinces. A BCC model with a changing effects of scale and the DEA method were applied, using linear programming.Results:The received results of assessing the technical efficiency of patient treatment related to diseases of civilization from the temporal and spatial point of view may serve as a basis for decisions on regional policy creation.Novelty:Interest in measuring production factors of healthcare activity and outcomes may be ascribed to increased care about costs borne in the sector and pressure on responsible management in the public sphere. Thus, planning appropriate actions aimed at maintaining and improving public health leads to the rational use of funds and improved lives of the population.
The Influence of the Accuracy of Statistical Data on the Results of a Classification of Eu Countries in Terms of Innovation
Authors: Stec Małgorzata 
Published: August 2020

Abstract

Research background: The article attempts to include the accuracy of statistical data in a synthetic evaluation and classification of EU countries in terms of innovation.

Purpose: The aim of the article is to evaluate an influence of the accuracy of statistical data on a classification of EU countries in terms of innovation.

Research methodology: The research employed diagnostic variables determining the innovation of EU countries and a methodology proposed by the European Commission in the European Innovation Scoreboard 2019. The influence of the uncertainty of the measurement of the diagnostic variables on the Summary Innovation Index of EU countries was evaluated. In order to do this, a procedure employing the Monte Carlo method was proposed.

Results: Taking into account the uncertainty of the measurement of variables in the evaluation of the innovation of EU countries resulted in qualifying one of the countries to another innovation group.

Novelty: The article draws attention to an important but often neglected problem related to the accuracy of statistical data used in research, and the evaluation of their influence on the calculation of a value of synthetic measure (based on the innovation of EU countries).
Competing Risks Models for an Enterprises Duration on the Market
Authors: Urbańczyk Dominika M. 
Published: August 2020

Abstract

Research background: Enterprises are an important element of the economy, which explains that the analysis of their duration on the market is an important and willingly undertaken research topic. In the case of complex problems like this, considering only one type of event, which ends the duration, is often insufficient for full understanding.

Purpose: In this paper there is an analysis of the duration of enterprises on the market, taking into account various reasons for the termination of their business activity as well as their characteristics.

Research methodology: A survival analysis can be used to study duration on the market. However, the possibility of considering the waiting time for only one type of event is its important limitation. One solution is to use competing risks. Various competing risks models (naive Kaplan-Meier estimator, subdistribution model, subhazard and cause-specific hazard) are presented and compared with an indication of their advantages and weakness.

Results: The competing risks models are estimated to investigate the impact of the causes of an enterprises liquidation on duration distribution. The greatest risk concerns enterprises with a natural person as the owner (regardless of the reason of failure). For each of the competing risks, it is also indicated that there is a section of activity which adversely affects the ability of firms to survive on the market.

Novelty: A valuable result is considering the reasons for activity termination in the duration analysis for enterprises from the Mazowieckie Voivodeship.
An Analysis of Tourist Attractiveness of Poviats of the Lesser Poland Voivodeship
Authors: Wolak Jacek 
Published: August 2020

AbstractResearch background:Lesser Poland is one of the most visited regions in Poland. Among the reasons why it is so, there are a variety of attractions located in this voivodeship and also the activities taken by local government, for which the development of the tourism industry is one of the key goals.Purpose:Building a ranking of poviats of Lesser Poland in terms of tourist attractiveness.Research methodology:Selected multivariate analysis tools, i.e. three methods of linear ordering and cluster analysis.Results:Using the Ward algorithm, poviats are grouped into four clusters of areas with similar characteristics due to tourist values. In addition, using three linear ordering techniques, poviats of the Lesser Poland voivodeship are ordered according to tourist attractiveness. The results of ordering are rather consistent and indicate that the most attractive poviats are: nowotarski, oświęcimski, tatrzański and the city of Kraków. Interestingly, these areas belong to three different groups obtained as part of a cluster analysis. This means that Lesser Poland is a diversified region in terms of the attractions that draw tourists’ to the area.Novelty:The study of tourist attractiveness using linear ordering techniques is not an original topic. The thesis is of cognitive value and fills a gap in the literature, in which there are no studies based on data from Lesser Poland.
On graded derivations of superalgebras
Authors: Azizpour Esmaeil , Atayi Dordi Mohammad 
Published: August 2020

Abstract
In this paper, we find conditions under which the bracket defined by a graded derivation on a Lie superalgebra (g, [, ]) is skew-supersymmetry and satisfies the super Jacobi identity, so it defines the structure of a Lie superalgebra on g.

In the case of the algebra of differential forms on a supermanifold, we study the graded commutator of graded derivations, graded skew-derivations and a graded derivation, with another graded skew-derivation of the superalgebra of differential forms on a supermanifold.
Conservation assessment and action on Lotus sanguineus (Fabaceae), a critically endangered endemic species to Turkey
Authors: Subaşı Ümit , Şekerciler Fatoş , Vural Mecit 
Published: August 2020

Abstract

Lotus sanguineus is one of the endemic taxa from Mediterranean Region of Turkey. It has hitherto been known from type locality and was assessed under VU and EN categories despite the lack of information on the population size, number of location and habitat quality. This study aims to determine the global conservation status and conservation strategies of the narrow endemic species. We collected all available data and evaluated them with the field studies. We reported the sizes of populations, altitude, coordinates, habitat types and the threats it faces for each locality. GeoCAT analyses at global levels indicate the extent of occurrence 19.965 km2 and area of occupancy 9 km2 and there could be an inferred decline due to habitat loss and fragmentation of the original population, suggesting this species might be classified as Critically Endangered, based on criterium B1ab (i, ii, iii) + 2ab (i, ii, iii) in the Red List categorization. Conservation priorities include life history and ecology studies, in-situ conservation, population monitoring and ex-situ conservation to prevent the destruction of the existing gene pool.
Morphological and phenological shifts in the Plantago lanceolata L. species as linked to climate change over the past 100 years
Authors: Prokhorova Svitlana , Netsvetov Maksym 
Published: August 2020

Abstract
Herbarium collections have proven to be irreplaceable information base in recent studies directed towards revealing shifts in plants phenology and morphology caused by climate change. We examined eight parameters of morphological traits in the perennial herb species Plantago lanceolata L. collected in the wild between 1905 and 2019 and stored at the KW-herbarium (Kyiv, Ukraine) to find out if there were changes in plants’ organ sizes during the last 114 years. For this period, we also calculated 13 climatic parameters obtained from meteorological records from the State archive that gave us the opportunity to check if there are any relations between the climate change in Kyiv region and shifts in morphological parameters of plants. Our results have shown Plantago lanceolata leaf blades, petioles and spikes had become significantly longer with time, increasing 3.0 cm, 2.1 cm and 0.6 cm respectively. The Co-inertia analysis revealed that 34% of the morphological changes was attributed to climate change. The analysis also demonstrated that leaf length correlated more with raised temperatures when plants were in flower, while spike length depended on the temperatures during bud development. Received knowledge can be used to reveal rapid evolutionary processes of the Plantago species and predicting their further course for the construction of historical climate models based on the leaves traits.
Identifying habitat use ofUrsus arctos,Lynx lynx martinoiandCanis lupus lupusin Albanian forests using occupancy modelling
Authors: Laze Kuenda 
Published: August 2020

AbstractForests are the principal terrestrial ecosystem for protected and endangered large carnivores, providing the main habitat for species maintenance and survival. Changes in forest cover influence species distribution. The aim was (1) to test hypotheses on the natural environmental (abiotic) and biological (biotic) factors and human disturbances that determine the colonization and local extinction of three large carnivore species in relation to forest cover, (2) to infer the biotic interactions between these three large carnivore species occupying the same forested areas in Albania. Colonization is estimated to be positively affected by forest cover for brown bear, Balkan lynx and grey wolf. Brown bear and grey wolf tend to compete for the same forested areas. Local extinction increased with decreasing forest cover for brown bear and increased with decreasing mixed broadleaved forests for Balkan lynx. Anthropological variables (proximity to villages and to neighbourhood roads) increased local extinction for brown bear, grey wolf and Balkan lynx. Further studies are recommended for better understanding biotic interactions of large carnivore species in forest habitats in Albania and its neighbouring countries, which could contribute to conservation of large carnivore species on a large scale.
A Mediterranean element of the vegetation: Junco maritimi-Cladietum marisci – a new association for Ukraine
Authors: Davydova Anastasia 
Published: August 2020

Abstract

Cladium mariscus (L.) Pohl (Cyperaceae) is a rare species in Europe considered by several authors to be a relict of the early Holocene period. It is listed in the Red Data Book of Ukraine, Annexes of the Habitat Directive and the Bern Convention. Communities with domination of this species are included in the Green Data Book of Ukraine. Substantial differences in major ecological factors for Cladium mariscus communities in the western (carbonate bogs) and the southern (marshes and floating swamps of the northern Black Sea) regions of Ukraine were shown. The author carried out comparisons of relevés characterizing different communities with Cladium mariscus within Europe. Based on the results of TWINSPAN analysis, four associations were identified, confirmed by floristic indices and ecological data: Cladietum marisci Allorge 1921, Soncho maritimi-Cladietum marisci (Br.-Bl. & O. de Bolòs 1957) Cirujano 1980, Dorycnio recti-Cladietum marisci Gradstein & Smittenberg 1977 and Junco maritimi-Cladietum marisci (Br.-Bl. & O. de Bolòs 1957) Géhu & Biondi 1988. Thus, in addition to the association Cladietum marisci, a new one was indicated for Ukraine, Junco maritimi-Cladietum marisci.
No extension without representation? Evidence from a natural experiment in collective bargaining
Authors: Hijzen Alexander , Martins Pedro S. 
Published: August 2020

Abstract
In many countries, collective bargaining coverage is enhanced by government-issued extensions that widen the reach of collective agreements beyond their signatory parties to all firms and workers in the sector. This paper analyzes the causal impact of extensions using a natural experiment in Portugal that resulted in a sharp and unanticipated decline in the extension probability of agreements. Our results, based on a regression discontinuity design, indicate that extensions had a negative impact on employment growth. This effect is concentrated among nonaffiliated firms, which may reflect the limited representativeness of employer associations.
Investigation of error performance in OFDM with network coding techniques in multiple relay networks
Authors: Hlaing Ngu War , Farzamnia Ali , Haldar Manas Kumar , Fan Liau Chung 
Published: August 2020

Abstract
The aim of this paper proposes an orthogonal frequency-division multiplexing (OFDM) with network coding to improve the error performance of the system when the messages are transmitted from user to receiver. Two-way relay (TWR) networks are applied to reduce the transmission time slots. The exclusive-OR (XOR) coding is used for network coding in which source nodes exchange their information via TWR nodes. The XOR coded bits provides redundancy to achieve the transmit diversity gain which improves the error performance of the TWR network. OFDM is exploited for TWR to obtain the frequency selective fading nature of wireless channels. The different modulation schemes such as Quadrature Phase Shift Keying (QPSK), 16-Quadrature Amplitude Modulation (QAM) and 64-QAM with OFDM system are simulated and QPSK is selected as it gives the lowest bit error rate (BER). The multiple relaying schemes with different numbers of the information packets are also considered in this paper. Simulation results show that multiple relay schemes provide faster transmission time and better error rate performance. Moreover, different kinds of channel coding schemes such as Convolutional, Reed-Solomon (RS) and turbo codes are applied in OFDM system with network coding to compare and evaluate the BER performance of the proposed system. From the simulation results, network coded OFDM scheme with turbo codes give better BER performance for given Signal-to-Noise Ratio (SNR) in relaying scheme with different numbers of information packets compared to those of convolutional and RS codes. It shows that, the error rate performance and transmission time is reduced 10 percent than the conventional scheme at even at low SNR value.
A rectangular slot Yagi DGS microstrip filter with sharp rolloff and wide suppression band
Authors: Gong Jing 
Published: August 2020

Abstract
A compact microwave lowpass filter based on defected ground structure (DGS), consisting of Yagi slot DGS resonators etched on the metallic ground plane of a microstrip line, is studied in this paper. The proposed lowpass filter was analyzed by parameter sweeping and optimal parameters were selected to design a prototype demonstrator filter. Measurements show the developed lowpass filter exhibits a 3dB cuto frequency of 3.07 GHz with a sharp transition between the passband and the stopband, low insertion loss of less than 0.6 dB in the passband and an in-band group delay of 0.4 ns. Moreover, an ultra-wide suppression band from 3.68 to over 20 GHz with a suppression level generally better than 20 dB is also observed from measurements.
Gaussian MIMO relay channel with orthogonal channel components
Authors: Al-qudah Zouhair 
Published: August 2020

Abstract
The Gaussian multiple-input multiple-output (MIMO) orthogonal relay channel (ORC) is investigated. The transmission from source to relay is done over a channel that is orthogonal to source-destination and relay-destination channels. Practically, this assumption is made such that many communication devices from different technologies are exploited in relaying the source’s signal into its destination. For this channel model, the capacity is initially derived. Thereafter, we propose a transmission algorithm to achieve the derived capacity. Further, to support our theoretical results, many numerical examples are presented.
Renal Denervation – a Modern Option for Treating Resistant Hypertension
Authors: Rodean Ioana , Chibelean Călin 
Published: August 2020

Abstract
Hypertension is one of the main cardiovascular risk factors, and it remains an important health problem, demonstrating an increasing incidence despite new treatment methods. Numerous risk factors that can lead to the development of difficult-to-treat or resistant hypertension have been described in the literature in recent years. In this type of hypertension, an important role is played by the sympathetic nervous system. Especially in these cases, with a sympathetic overactivation, renal denervation has proven its efficacy and safety in lowering blood pressure. In this brief clinical update, we present the results of the main studies regarding the efficacy and safety of the renal denervation technique used in the treatment of resistant hypertension.
Establishing Sustainable Teacher Education with Weekly School Practice - Identifying Teacher Students’ Experiences of Didactic Dilemmas in the Swedish Primary School Classroom
Authors: Sundh Stellan 
Published: August 2020

Abstract
Teachers face dilemmas of different kinds in their everyday practice. It is therefore essential that teacher students become aware of the dilemmas they will face in their future profession. By integrating school practice in teacher education programs, students apply theoretical knowledge to classroom situations. In a project at a Swedish university campus, the students worked as teacher candidates one day a week at different primary schools during their first semester. The purposes were to make the teacher education at the campus sustainable by attracting more students, limiting the number of dropouts and improving the quality in the education. In the present study, it is of interest to identify the didactic dilemmas teacher students experience in classrooms with 6 to 12 year-olds. By analysing the students’ written reports, the results indicate that the students’ identified dilemmas relate to classroom management, the lesson content and the establishing of relationships with the children.