bluuebunny/crossref_metadata_2025_split huggingface dataset:
The oxidation kinetics of depleted uranium and its low-alloy molybdenum alloys in moist air
Authors: Chmela T. , Krupička P. 
Published: December 2019

Abstract
The oxidation kinetics of depleted uranium and its low-alloy molybdenum alloys (U-2wt.%Mo, U-5wt.%Mo) were measured in a moist air (75% relative humidity) at 60 and 75 ° C. Coefficients of reaction rate equations were determined for linear oxidation kinetics. In the oxidation of depleted uranium at 75 ° C, a change in reaction kinetics from linear to exponential behaviour was observed after about 2500 hours.
Corrosion-mechanical behavior of gas main steel in saline soils
Authors: Poberezhny L. , Stanetsky A. , Grytsuliak G. , Poberezhna L. , Kosmii M. , Hrytsanchuk A. 
Published: December 2019

Abstract
The study of the deformation behavior of the pipeline material in conditions of loads and influences simulating the operation allows better estimation of the residual life of the pipelines and more accurate forecasting of the operating costs. The kinetics of deformation in 6 model environments simulating soil electrolytes was studied. Corrosion-mechanical tests were performed and the impact of the soil electrolyte chemical composition and the applied mechanical stresses on the corrosion behavior of the pipeline steel was studied. Significant increase in the corrosion activity of the soil electrolyte due to the synergistic effect of the corrosion-active components was found in the specified ratios of the ionic molar concentrations of sulphate and chloride ions (0.05 M: 0.1 M).
Corrosion and corrosion inhibition in an environment of ethanol – gasoline blends
Authors: Matějovský L. , Pleyer O. , Macák J. 
Published: December 2019

Abstract
Ethanol produced from renewable resources is considered as an ecological substitute for a fossil gasoline. Ethanol blended with the fossil gasoline is able to significantly change the properties of the blended fuel as polarity, conductivity, ability to absorb air humidity and ability to dissolve a high percentage of water etc. All these properties are growing with an increasing content of ethanol and all of them can cause higher corrosivity of blended fuel. Material compatibility of metalic construction materials of the vehicle fuel system is also decreased in the environment of ethanol – gasoline blends (EGB’s). Furthermore, components of production, transport and storage equipment may be at risk of corrosion. EGB’s with an ethanol content of about 60% vol. show high corrosive aggressivness, especially if they are contaminated with water and trace amounts of ion, which may occur if proper storage, transport and production conditions are violated. Losses caused by corrosion of equipment may be prevented by using of suitable additive. Diethylenetriamine (DETA) can be used as such additive for the mild steel which is one of the most commonly used construction material. When DETA is used, it shows very high efficiency.
Survey and restoration of outdoor glass reinforced polyester sculptures
Authors: Knotek V. , Červinka J. , Křenková Z. 
Published: December 2019

Abstract
The beginning of the use of polyester resins for artistic work date back to the late 1950s. Initially, resins were supposed to temporarily replace and imitate traditional but more expensive sculptural materials (stone, bronze). Later, original, especially fiberglass works were created, where the laminate formed a shell connected to the internal supporting steel structure. Until now, only part of the exterior works of art made of polyester resins have been survived. Although polyester resins are considered to have good weather resistance, most exterior sculptures exhibit more or less severe defects, often resulting from neglected maintenance. The main types of defects occurring in polyester fiberglass works are presented. The most serious damage is cracks in the entire thickness of the shell, because water can easily penetrate to the internal steel structure. In the case of prolonged water penetration, the statue may collapse due to corrosion. The article presents the procedure of exploring the fiberglass sculpture from the 1950s with the introduction of suitable methods for the documentation of the state of the work. Finally, suitable restoration interventions to maximize the life of the statues are discussed.
Automation Marketing in Research Unit — Real Value or Effectiveness Fantasy
Authors: Jarosławska-Sobór Sylwia , Dulewski Mateusz , Wasilewski Filip 
Published: December 2019

Summary
The aim of the article is to present the issue of Marketing Automation (MA, automation of marketing) and the possibilities of its use in the operational activity of research and scientific entities. MA is a modern, advanced technological solution aimed at improving marketing processes and wider use of data on the market and customers. In recent years it has been one of the most important trends in modern marketing, at the same time posing a real challenge for organizations operating in the field of science and research. The article discusses the experience of the Central Mining Institute, related to the implementation of solutions such as Marketing Automation, treated here as a case study.
Social Media as a Source of Information About Universities Among Candidates for Studies
Authors: Stachowiak-Krzyżan Magda 
Published: December 2019

Summary
The main goal of the article is to indicate the importance of social media in the process of seeking information about universities by potential candidates for studies. To realize the set goal, quantitative research was carried out among a group of high school students, using the auditorium survey technique. The youth questionnaire was collected via the questionnaire for information sources used in the decision-making process about the choice of the future educational path. The conducted research confirmed that social media are one of the most important sources of information about universities, just after personal sources such as family and friends.
Leaders in focus: generational differences from a personality-centric perspective
Authors: Bălan Mădălina , Marin Silvia , Mitan Andreea , Pînzaru Florina , Vătămănescu Elena-Mădălina , Zbuchea Alexandra 
Published: December 2019

Abstract
The generational differences among leaders have progressively captured the attention of both researchers and practitioners interested in their dynamics within the work environment. Many analyses in this respect have been focused on the differences between Millennials (Generation Y) and Generation X members from a personality-centric perspective, the great majority of the examinations revolving around Western research samples. By acknowledging the current state and assuming the calls for further investigations advanced by various researchers, this conceptual and empirical undertaking aims to provide an exploratory outlook on generational differences among Romanian leaders, by employing worldwide reputed research instruments such as the Hogan Personality Inventory (HPI), Hogan Development Survey (HDS) and Motives, Values, Preferences Inventory (MVPI). A sample of over 700 subjects was considered in the running of the statistical analyses, thus allowing to draw pertinent conclusions apposite to the envisaged population. Even though statistically significant findings were retrieved on few scales pertaining to the three applied instruments, one key insight advanced by the present endeavor resides in the extension of the scope of the existing literature dedicated to the generational differences from a leadership perspective via the integration of an Eastern European landscape which adds to the evidence in the field and opens up new research challenges for complementary scrutiny.
How authentic leadership promotes individual knowledge sharing: viewing from the lens of COR theory
Authors: Tran Huy Phuong 
Published: December 2019

Abstract
Fostering knowledge sharing has been one of the most vital tasks for organizations in the knowledge based economy. Thus, investigating the antecedents of knowledge sharing behavior is of great interest to both academics and practitioners. The impact of leadership on knowledge sharing has been reported in the literature. However, the direct and indirect impacts of authentic leadership on knowledge sharing is under-researched. Furthermore, because knowledge is an individual resource, knowledge sharing can be investigated in the light of the conservation of resource theory. This study applies conservation of resource theory to examine the influence of authentic leadership on knowledge sharing with relational psychological contract and organizational based self-esteem as mediators. Data collected from survey using questionnaire were used to test the hypotheses in a quantitative research design. Structural equation modelling (SEM) techniques are applied for data analysis. The results showed that authentic leadership positively and significantly influence individual knowledge sharing. Furthermore, relational psychological contract and organizational based self-esteem have been found to mediate the above relationship. Discussion of research findings, theoretical and practical implications are also detailed. Finally, the study outlines limitations of research and provides directions for further knowledge sharing studies.
Estimating fuel price volatility and spillover effects across different European countries
Authors: Kubinschi Matei , Barnea Dinu , Zlatcu Iuliana 
Published: December 2019

Abstract
This paper analyses the volatility of retail fuel prices in nine different EU countries and the spillover effects between fuel prices across selected countries from Central and Eastern Europe and the Eurozone over the 2008-2019 period. In particular, we use the GARCH-GJR model in order to investigate fuel price volatility and identify potential asymmetric dynamics. Moreover, in order to assess the links between fuel prices across countries, we estimate a VAR model and compute spillover measures using the Generalised Forecast Error Variance Decomposition (GFEVD) approach formulated by Diebold and Yilmaz (2009). Our results provide evidence of weak links between retail fuel prices across EU countries, with slightly higher spillovers originating from some developed economies such as France and Italy.
Polish nursing into the future – challenges and opportunities
Authors: Timmins Fiona 
Published: December 2019

Abstract

Introduction. Polish nursing has experienced rapid and unprecedented evolutionary change. Recent and ongoing changes to preparatory nurse education have heralded a profound change for the profession. At the same time the nursing profession itself has experienced unprecedented development in terms of changing roles and expanded practice. While the growth of professional is ongoing there are many challenges to this in terms of staffing shortages, an aging workforce and changing illness trajectories. While a committed workforce, nurses are challenged to maintain quality standards in the context of these challenges.

Aim. This paper explores the responses and responsibilities required of the profession to face ongoing changes in medicine, health and society as well as policy and professional changes. The leadership required to successfully steer and negotiate this ongoing transformation will be discussed.
Comparative Analysis of Kinetics Parameters During Different Landing After Split Front Leaps
Authors: Błażkiewicz Michalina , Kępczyński Andrzej , Wit Andrzej 
Published: December 2019

Abstract

Introduction.
Dance and rhythmic gymnastics are high leap demanding sports. Leaps are fundamental human movements that require complex motor coordination of both the upper and lower body extremities. The aim of this study was to compare the kinetics parameters of two types of landing after performing front split leaps.

Material and methods.
Fifteen high-level acrobatic gymnasts with a mean age of 22 ± 2.76 years and mean training experience of 12.27 ± 2.34 years participated in the study. Examinations of kinetics parameters of the movements analysed were carried out using the Vicon system and Kistler plates. Gymnasts completed front split leaps with balanced landing (arabesque position) and moving landing (continued movement).

Results.
Values of vertical ground reaction force and values of muscle torque in the hip joint were statistically significant higher (p < 0.001) for balanced landing. The value of leg stiffness was also significantly (p < 0.001) higher for balanced landing (5.69 ± 2.45 kN/m) compared to moving landing (1.89 ± 0.43 kN/m). For balanced landing, the sequence of maximal peaks of torques from the highest to the lowest values were found in the hip (5.81 ± 1.06 Nm/kg), ankle (3.56 ± 0.71 Nm/kg), and knee (2.01 ± 0.75 Nm/kg) joints. For the split leap with moving landing, the most loaded joints, in descending order, were the ankle (3.50 ± 0.42 Nm/kg), hip (3.39 ± 0.78 Nm/kg), and knee (2.21 ± 0.57 Nm/kg) joints.

Conclusions.
The findings of the study can help to improve the methodology of training the technique and protect gymnasts and dancers against unnecessary injuries.
Agility and Coordination Testing in Hand-to-Hand Combat Sports
Authors: Platonov Vladimir , Nikitenko Aleksei 
Published: December 2019

Abstract

Introduction.
The aim of the study is to analyse existing tests for assessing agility in combat sports and martial arts, as well as to develop new tests and to test their effectiveness.

Material and methods.
The study involved 16 athletes at various competitive levels specialising in hand-to-hand combat. It used the following methods: review of specialised literature along with policy and normative documents, an expert survey, testing, instrumental methods of assessing psychophysical capabilities, a pedagogical experiment, and methods of mathematical statistics.

Results.
The article clearly delineates the concepts of “agility” and “coordination”. It was found that most of the exercise tests recommended for assessing agility actually only evaluate coordination, without taking into account unexpected and unpredictable situations, which are the key components of agility. While some tests allow for the assessment of agility, they are based on motor actions which are non-specific for combat sports. Moreover, the use of computer-based techniques for studying the visual-motor reaction has proven to be ineffective for assessing agility in sports.

Conclusions.
The article proposed three variants of specialised tests for assessing agility in motor actions specific for hand-to-hand combat. According to the results of all the three tests, the programme proposed for the development of agility and coordination caused a significant improvement in the level of agility in six months.
Three-Week Intensive Neuromuscular Training Improves Postural Control in Professional Male Soccer Players
Authors: Kowalczyk Małgorzata , Tomaszewski Paweł , Bartoszek Natalia , Popieluch Marcin 
Published: December 2019

Abstract

Introduction.
The purpose of this study was to determine the impact of a short-term, three-week intensive neuromuscular training programme on the postural stability of professional soccer players and to establish whether lower-limb dominance affects one-leg stability.

Material and methods.
The experimental group consisted of 16 professional male soccer players, and the control group included 20 professional soccer players who did not undergo any additional training. The experimental group was provided with three-stage progressive training twice a day over a three-week period during the preparatory period and then trained twice per week in-season for a period of 5 months. The experimental subjects were evaluated with the use of a stabilographic platform before the programme, 3 weeks into the programme, and finally after 5 months from its commencement. Total centre of pressure (COP) sway path was measured during one leg stance for the dominant and non-dominant leg with eyes open and closed.

Results.
After three weeks of training, the experimental group showed a significantly shorter COP path for the measurements taken with both open (p < 0.001; η2 = 0.28) and closed eyes (p < 0.05; η2 = 0.09) compared to the initial results. It was found that the training effects were sustained five months into the training programme for the tests with eyes open (p < 0.001) and eyes closed (p < 0.05). The control group, however, showed no such improvement during that time. No differences were found between the limbs in either of the groups.

Conclusions.
Neuromuscular training can be effective for postural control improvement in professional male soccer players within a short period of time. Leg dominance does not affect one-leg stability.
Sex-Mediated Differences Among University Students Performing Extreme Physical Activity During the 3-Minute Burpee Test
Authors: Podstawski Robert , Żurek Piotr , Clark Cain C.T. , Ihash Ferenc , Kozina Zhanneta , Omelan Aneta 
Published: December 2019

Abstract

Introduction.
The aim of this study was to evaluate sex differences in anthropometric indicators, body composition, physical fitness, and physiological parameters in young women and men performing extremely strenuous exercise during the 3-Minute Burpee Test (3-MBT). Post-exercise recovery during a 6-minute break was determined in the tested subjects.

Material and methods.
Ninety-six university students volunteered to take part in this study (45 women aged 20.05 ± 1.81 years and 51 men aged 20.20 ± 2.71 years). Endurance-strength abilities were determined during the 3-MBT motor fitness test, and body composition was determined with an InBody720 analyser. Data were analysed using a Mann-Whitney U test, with statistical significance accepted at p ≤ 0.05.

Results.
The anthropometric indicators, body composition parameters, physical fitness levels (47.22 cycles/3 min), and physiological parameters measured during the 3-MBT were significantly higher in men (VO2avg – 41.57 mL/kg/min, VO2max – 49.67 mL/kg/min, EPOCavg – 11.02mL/kg, and EPOCpeak – 27.84mL/kg) than in women. Women were characterised by significantly higher (p < 0.05) body fat mass (BFM = 18.80 kg) and percent body fat (PBF 28.26%) than men.

Conclusions.
Male subjects were characterised by higher values of anthropometric indicators, body composition parameters (excluding body fat), motor fitness levels, and physiological parameters than women, and endurance-strength abilities were 23.75% higher, on average, in men than women.
An Analysis of the Condition of the Tourist Brand and Tourist Attractiveness of the Podkarpackie Region Based on the Brand Asset Valuator Model
Authors: Gierczak-Korzeniowska Beata 
Published: December 2019

Abstract

Introduction.
There are many factors which determine the attractiveness of a region for tourists. However, such assessments are, relatively rarely, a result of the analysis of the presence and condition of regional tourist brands and their perception among visitors. The analysis and assessment of the condition of a brand can be carried out using the BAV (Brand Asset Valuator). This is an extremely interesting and useful tool which explains the dynamics of behaviour of brands on the market and diagnoses their “health”, supporting the process of their long-term management.

Materials and methods.
On the basis of the results of a pilot study, an attempt is made to measure the tourist attractiveness of the Podkarpackie region through the assessment of regional tourist brands and their features which are important from the point of view of the inhabitants of the region. The BAV model was used to analyse 32 tourist products. The applied research methods include the Mann-Whitney test, Spearman’s rank correlation coefficient, and the chi-square independence test.

Results.
The mapped data analysis based on the BAV model showed that 16 out of 32 products assessed were located in the leadership quadrant. The majority of the remaining products were in the development or decline phases.

Conclusions.
The presence of branded tourist products and their number have an impact on the tourist attractiveness of the region. The following aspects of the region were considered the most attractive: nature (natural surroundings, natural values, and ecological aspects), heritage (historical heritage and monuments and presentation of important past events), and tourism (tourism and recreation offerings).
In the EU and NATO but Close to Russia — Post-Crimea Attitudes in Bulgaria and Hungary
Authors: Berglund Sten , Karasimeonov Georgi 
Published: December 2019

Abstract
This article focuses on attitudes towards Russia in Bulgaria and Hungary — two EU and NATO countries with special relations to Russia — in the wake of Russia’s annexation of Crimea and military intervention in support of separatists in the Donbas region of Eastern Ukraine in 2014 and onwards. We begin by putting the relations to Russia in a historical perspective. We then set out to account for support for Russia with the help of survey data from the Post-Crimea Barometer (2015) — a unique survey focusing on geopolitical orientation (East versus West) and attitudes towards Russia in Latvia, Hungary and Bulgaria in a post-Crimea setting. Latvia is a special case because of its large Russian minority population; we therefore confine our comparison to Bulgaria and Hungary. The findings suggest that long-term attachment to Russia is decisive in Bulgaria. In Hungary, long-term attachment to Russia is important, but not sufficient to account for post-Crimea attitudes towards Russia.
Resisting Gender Recognition in Poland: A Process of Social Exclusion
Authors: Makarewicz-Marcinkiewicz Agnieszka 
Published: December 2019

Abstract
This paper demonstrates that in Poland, a democratic state emphasizing the rule of law and equality under the law, we are dealing with the phenomenon of social (through legal) exclusion of transgender citizens. The paper presents the draft Act on Gender Recognition vetoed by the President of the Republic of Poland and the controversy associated with this fact. In addition, the consequences of the current legal status of transgender people in Poland, such as chronic and humiliating court proceedings and limited access to the health care system, have been identified. The paper attempts to demonstrate the indispensability of legislation in the field of gender recognition for the dignified, equitable social functioning of people with mental and biological gender incompatibility.
Fake News as a Tool of Populism in Turkey: The Pastor Andrew Brunson Case
Authors: Akgül Harun Güney 
Published: December 2019

Abstract
This study examines how populist politicians made sense of the issue of fake news. They generally consider fake news as a valuable propaganda tool for their political interests. According to the Reuters Digital News Report in 2018, Turkey ranks first on the list of countries where people complain about completely made-up stories. The study researched how fake news is helping facilitate the rise of populism in Turkey. There is plenty of fake news aired by pro-government media. Therefore, the Turkish government is emerging as a suspect behind the fake news cycle. The fact is that most of the fake news is published for the benefit of the government. Research shows that, paradoxically, President Recep Tayyip Erdogan is regarded as one of the most important populist politicians in the world. These two different indicators can be valuable data in revealing the relationship between fake news and populist politicians. The aim of this paper is to consider the significance of this apparent relationship between fake news and President Erdogan. In order to do this, a critical discourse analysis method was based on the fake news about the pastor Brunson case, because Turkish readers came across a huge amount of fake news regarding his case in pro-government media.