bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research of Employee Benefits in the Ostrava Region / Výzkum Zaměstnaneckých Výhod Na Ostravsku
Authors: Vaněk Michal , Krčmarská Lucie , Magnusková Jana , Kučerová Lucie , Bartošíková Michaela 
Published: January 2015

Abstract
The article deals with the issues of employee benefits that influence employee motivation. Thus they participate not only in creating preconditions for company competitiveness, but also in proper running the company and/or return on investments into employees. In relation to the given questions, selected motivation theories and results of some sociological surveys connected with these problems are characterised briefly in the article as well. The focus of the article is the research into employee benefits in the Ostrava region. The authors of the article paid particular attention to the kinds of benefits provided to employees most frequently at present and how these benefits are perceived by employees themselves
A Brief Overview Of Development In The Use Of Indicator Gases For Coal Spontaneous Combustion And Prospects For Further Solution / Stručný Přehled Vývoje Využití Indikačních Plynů Samovznícení Uhlí A Výhled Dalšího Řešení
Authors: Snopek Lukáš , Adamus Alois 
Published: January 2015

Abstract
One of the most serious risks associated with mining using mainly underground methods is the risk of mine fires. Causes of these fires can be exogenous (external) or endogenous (internal). The authors of the article pay attention to endogenous fires in coal mines, especially to the timely indication of them. As already mentioned in many contributions, spontaneous combustion is a complicated process that passes, in the final stage, into a mine open fire. The localization of a place of such danger can be done by means of so-called indicator gases that are desorbed from the coal substance at a point of the originating seat of spontaneous combustion. The article deals with a development trend in the use of indicator gases for spontaneous combustion in coal mining. The objective of the authors was to arrange chronically and briefly knowledge of the use of indicator gases both abroad and in the Czech Republic and to provide input information about a research project being dealt with at present
Method of Rigid Overlying Strata Failure Assessment of Extracted Seams and its Practical Application / Metoda Hodnocení Porušování Pevného Nadloží Exploatovaných Slojí A Její Praktické Využití
Authors: Jiránková Eva 
Published: January 2015

Abstract
The method of rigid overlying strata failure assessment of extracted seams is based on the simultaneous assessment of surface subsidence and seismic activity considering spatio-temporal progress of mining depending on the rock mass character and previous mine activity. If no complete failure of the firm overlaying layers occurs, the surroundings of the worked-out area is considerably supercharged and a risk of anomalous geomechanical phenomena occurrence substantially increases. The paper explains the mechanism of a rigid overlying strata failure under specific condition.
Primary Research of Mine Waters from the Chrustenice Iron-Ore Deposit/ Prvotní Průzkum Důlních Vod Železorudného Ložiska Chrustenice
Authors: Bouchal Tomáš , Závada Jaroslav , Vojtková Hana , Langarová Silvie , Havelek Radim 
Published: January 2015

Abstract
This paper describes the primary research of mine waters in the Chrustenice Iron-ore Deposit. A particular attention is paid here to the research of microorganisms living in that environment. The goal of the research is to analyse mine waters in the area which was abandoned by people more than 45 years ago and to investigate microorganisms and representatives of species present there in the mine waters. The Chrustenice Mine ranked among the biggest and most important iron ore mines in Barrandien. This mine along with the mines in Nučice, Zdice, Nový Jáchymov and Mníšek pod Brdy contributed to the fame of the regional mining industry. Sedimentary oolitic iron ore in Chrustenice consists mostly of red iron ore based on Černín layers, siderite and, to a lesser extent, of haematite and chamosite. In exceptional cases, magnetite is present there. The Černín shale is black clay shale with sandy ingredients and many potash-mica scales. Now, the mine is flooded up to the 8th level. In the remaining area, there is a mining history museum with dozens of exhibits. In samples of the mining water taken on the site, mostly iron, manganese and sulphur microorganisms were identified. The primary study of the mine waters in the iron-ore deposit shows that, from the microbiological point of view, this site is very interesting and many chemolithotrophic species of bacteria are present there.
Assessing Relations between Water Supply and Demand in the Odra and Morava River Basins/ Posouzení Vazby Vodárenských Zdrojů A Nároků Na Vodu V Oblastech Povodí Odry A Moravy
Authors: Thomas Jan , Kyncl Miroslav , Langarová Silvie 
Published: January 2015

Abstract
Periods of drought represent a serious problem in the management of water resources. Currently used climatic models assume the onset of major climatic changes and periods of drought. Irrespective of whether the forecasts will be fulfilled or not, it is essential to prepare measures to ensure the supply of drinking water in dry periods. This paper deals with the preparation of water balances for the areas of the Odra and Morava River basins and the prediction of relationships between water supply and water demand in the given area.
The Issue of Income from Operating Ukraine Coal Deep Mines/ Problematika Hospodářského Výsledku Hlubinných Uhelných Dolů Ukrajiny
Authors: Dvořáček Jaroslavav , Martyaková Elena V. , Kochura Ilona V. , Sousedíková Radmila , Savič Igor 
Published: January 2015

Abstract
This paper focuses on looking for factors that influence the income of deep coal mining operations in Ukraine. The method of discriminate analysis was employed for assessing economic success of the operations. It could be concluded that mining-geological conditions are the most significant cause of influence; the human factor is of lesser importance.
Comparison of the Method of Least Squares and the Simplex Method for Processing Geodetic Survey Results / Porovnanie Metódy Najmenších Štvorcov A Simplexovej Metódy Pri Spracovaní Výsledkov Geodetických Meran
Authors: Gašincová Silvia , Gašinec Juraj 
Published: January 2015

Abstract
The present paper is devoted to the use of the simplex method in the processing of results from geodetic measurements as compared with the standard used method of least squares. Using the simplex method, a minimization problem is usually solved in a standard tabular form by rearranging lines and columns in order to find an optimal solution. The paper points out the simpler, more stable and more efficient way to solve a problem of linear programming through a matrix of relations.
Risk Assessment in Mining-Related Project Management / Stanovení Rizika V Projektovém Řízení V Podmínkách Těžebního Podniku
Authors: Vaněk Michal , Tomášková Yveta , Straková Alena , Špakovská Kateřina , Bora Petr 
Published: January 2015

Abstract
Risk assessment is an integral part of the assessment of an investment project. Underestimating risks may lead to erroneous conclusions with negative impacts on the economy of the project. With regard to the level of investments and the time factor under mining company conditions, the issue of risk gains importance. The evaluation of existing practical experience shows that managers of mining companies more often approach to the risk assessment based on intuition, than through exact methods. The article is devoted to the risk assessment itself whose procedure is illustrated on a model example of assessing continuous and discontinuous alternatives of exploitation of loose overburden materials during large-scale coal mining operations in progress at pit quarries.
Determination of Elevator Shaft Uprightness Applying the Terrestrial Laser Scanning Method / Určovanie Zvislosti Výťahovej Šachty Metódou Terestrického Laserového Skenovania
Authors: Kovanič Ľudovít 
Published: January 2015

Abstract
This paper presents the results obtained from geodetic measurements and processing the data with the objective to determine geometrical parameters of an elevator shaft applying classical as well as modern approaches for obtaining the measured data. The intention was to verify the possibility to apply the terrestrial laser scanning (TLS) method as a suitable, efficient and precise method for collecting spatial data.
Monitoring and Analysis of Surface Changes from Undermining / Monitoring a Analýza Povrchových Projevů Poddolování
Authors: Kajzar Vlastimil , Doležalová Hana 
Published: January 2015

Abstract
It is well known that the exploitation of mineral deposits negatively affects the environment. In the case of underground mining, there are usually the most serious effects which are associated with mining activities: movements and surface deformations lead to the creation of subsidence depressions.
The determination of the actual state of surface changes by conventional surveying methods is technically exacting, time-consuming and very expensive. With the development of geo-information technologies, new approaches arise and they can be applied to resolving this issue. These resources seem to be suitable not only for providing the necessary spatial information on ongoing processes, but also for their subsequent processing and comprehensive evaluation.
The presented paper deals with the possibilities of applying geo-information technologies for monitoring and evaluating the effects of underground mining on surface, summarizes the actual state of this research at ICT, and offers alternatives for their use in the future
Membrane Processes For Industrial Wastewater Treatment – Demineralization Station / Membránové Procesy V Technologii Úpravy Průmyslových Odpadních Vod – Demineralizační Stanice
Authors: Hajduková Jitka , Thomas Jan , Malíková Petra , Matúšková Veronika 
Published: January 2015

Abstract
The paper deals with treatment of wastewater produced by the energy industry using a membrane processes (electrodialysis). Prior to application of this technology, the influence of wastewater on the chosen type of membranes is solved. Specifically, it means eliminating the influence of formation soluble (insoluble) salts which could negatively affect water treatment by the chosen technology. The paper also summarizes the results of laboratory tests of electrodialysis with the aim to acquire treated wastewater of such quality meeting legislative limits for discharges to surface water (i.e. total dissolved solids below 1g.l-1)
Research on morphology and biology of germination of Salvia przewalskii Maxim
Authors: Buchwald Waldemar , Bilińska Elżbieta , Kitkowska Sława , Forycka Anna 
Published: January 2015

Summary
In this paper, diaspores and seedlings of Salvia przewalskii Maxim. were described. The three-year cycle of monthly germination analyses of seeds was carried out. The best germination of seeds was observed in the turn of spring and summer (June, July). It was found that the germination of diaspores of Salvia przewalskii in laboratory analysis does not depend on the influence of light and fluctuations of temperature within the range 20-30°C. After 5 years of storage in unheated room conditions, the diaspores of Salvia przewalskii germinated about 20%.
Yield and chemical composition of essential oil from Salvia officinalis L. in third year of cultivation
Authors: Zawiślak Grażyna 
Published: January 2015

Summary
The study upon sage (Salvia officinalis L.) has been carried out at the Experimental Section of Department of Vegetables and Medicinal Plants, University of Life Sciences in Lublin. The aim of present study was to evaluate the yield and chemical composition of essential oil extracted from sage leaves harvested from a three-year plantation. The sage herb harvest date in the third year of cultivation had a significant impact on the yield of plants. Higher yield of fresh and dry herb, dry leaves, and essential oil was achieved in August (the second harvest time) than in May (the first harvest time). Chromatographic examination indicated the presence of 50 chemical compounds in sage essential oil. It was a variable percentage of essential oil components depending on the raw material harvest time. The main components of the sage essential oil were: 1,8-cineole (16.08-18.04%), α-thujone (10.40-21.51%) and camphor (5.24-18.08%).
Capsaicinoid profile of soft-flesh Capsicum spp. genotypes according to the purée production method
Authors: Nowaczyk Lubosława , Banach-Szott Magdalena 
Published: January 2015

Summary
Capsaicin and dihydrocapsaicin concentration was evaluated using the HPLC method in the whole fruit, pericarp, and purée obtained by rubbing fruit through a strainer, purée obtained by fruit expressing, and in the waste following the two above processes. The highest content of each compound was noted in purée and the lowest one in pericarp and waste. Concentration of capsaicin was higher than concentration of dihydrocapsaicin in all of the analysed material. Reciprocal relations between contents of two compounds ranged from 1.4 to 5.3. Capsaicinoid contents in purée obtained by rubbing plus in the waste of the process and in the expressed purée plus the waste of the process were highly similar. Capsaicin and dihydrocapsaicin contents in purée obtained as a result of mechanical separation of soft tissue from the inedible fruit parts was significantly higher than in pericarp and stable, regardless of the processing method.
Spine Buddy® Supportive Pad Impact on Single-Leg Static Balance and a Jogging Gait of Individuals Wearing a Military Backpack
Authors: Ward John , Coats Jesse , Pourmoghaddam Amir 
Published: January 2015

Abstract
The Spine Buddy® supportive pad was developed to be inserted underneath military backpacks to help disperse the heavy load of the backpack. The purpose of this study was to determine the impact the additional supportive pad had on static balance and a running gait while wearing a military backpack. Forty healthy subjects (age= 27.5 + 5.6 yrs, body height= 1.78 + 0.06 m, body mass= 86.5 + 14.0 kg: mean + SD) participated in a static single-leg balance test on a force plate with each lower limb while wearing a 15.9 kg military backpack for 30 s. Following this, participants were randomized to one of two interventions: 1) Intervention, which wore the Spine Buddy® supportive pad underneath their backpack or 2) Control, with no additional supportive pad. Post-intervention measurements of static single-leg balance were then recorded. Afterwards, a similar pre vs post testing schedule and randomization scheme was used to test the impact of the supportive pad on a 5 mph jogging gait using Vicon® cameras. Within-group data were analyzed with a 2-way repeated measures ANOVA. Statistically significant differences were not seen between the control and experimental group for balance and gait variables. Preliminarily, this suggests that the Spine Buddy® supportive pad causes no deleterious effect on static balance and a jogging gait in 18-45 year-old asymptomatic individuals.
The Effect of Climbing Ability and Slope Inclination on Vertical Foot Loading Using a Novel Force Sensor Instrumentation System
Authors: Baláš Jiří , Panáčková Michaela , Jandová Soňa , Martin Andrew J. , Strejcová Barbora , Vomáčko Ladislav , Charousek Jan , Cochrane Darryl J. , Hamlin Mike , Draper Nick 
Published: January 2015

Abstract
The aim of the study was to assess the effects of climbing ability and slope inclination on vertical loading both in terms the forces involved and physiological responses. Five novice and six intermediate female climbers completed a climbing route at three slope inclinations (85°, 90°, and 98°). The vertical loading during the climb was assessed by force-time integral using a Novel Pedar-X insole and physiological responses via oxygen uptake and heart rate. The novice climbers had a significantly lower (p < 0.05) vertical loading on foot holds and higher oxygen uptake and heart rate compared to intermediate climbers. A significant negative correlation was identified between the force-time integral and oxygen uptake (R = -0.72), and with heart rate (R = -0.64), respectively. The time-force integral decreased across the ascents with increasing slope inclination (p < 0.001). The results indicate that more advanced ability climbers make greater use of foot holds, with associated lowering in physiological response (oxygen uptake and heart rate) across all slope inclinations.
Analysis of Speed Performance In Soccer by a Playing Position and a Sports Level Using a Laser System
Authors: Ferro Amelia , Villacieros Jorge , Floría Pablo , Graupera Jose L. 
Published: January 2015

Abstract
The purpose of this study was to determine the kinematic variables that identify the quality of velocity in soccer players at different competitive levels and playing positions. This study had two independent variables: 1) a competitive level (competitive and non-competitive players); and 2) a playing position, with four levels (central defenders, wide defenders/midfielders, central midfielders and forwards). Forty-two soccer players took part in a 30 m sprint-test, which was measured using a laser sensor-type 1 (LDM301-Jenoptik) at 2000 Hz. Absolute and relative times, average velocities and absolute and relative maximum velocities over 10 m sections were analyzed at 200 Hz with BioLaserSport®. There were no significant differences in average velocity between competitive and non-competitive players; however, the former reached a greater maximum velocity in the 10-20 m section. Average velocity in the 0-10 m section identified specificity among playing positions in competitive players. The forwards were the fastest followed by the central midfielders, the wide defenders/midfielders and the central defenders. No differences were found among the non-competitive players. Average velocity over the 0-10 meter section may be an important indicator when assigning a playing position for competitive players. These results support the use of more accurate systems, such as a laser system, to identify soccer players’ speed qualities (including maximum velocity) during short sprints.
Strength Training Prior to Endurance Exercise: Impact on the Neuromuscular System, Endurance Performance and Cardiorespiratory Responses
Authors: Conceição Matheus , Cadore Eduardo Lusa , González-Izal Miriam , Izquierdo Mikel , Liedtke Giane Veiga , Wilhelm Eurico Nestor , Pinto Ronei Silveira , Reistenbach Goltz Fernanda , Dornelles Schneider Cláudia , Ferrari Rodrigo , Bottaro Martim , Kruel Luiz Fernando Martins 
Published: January 2015

Abstract
This study aimed to investigate the acute effects of two strength-training protocols on the neuromuscular and cardiorespiratory responses during endurance exercise. Thirteen young males (23.2 ± 1.6 years old) participated in this study. The hypertrophic strength-training protocol was composed of 6 sets of 8 squats at 75% of maximal dynamic strength. The plyometric strength-training protocol was composed of 6 sets of 8 jumps performed with the body weight as the workload. Endurance exercise was performed on a cycle ergometer at a power corresponding to the second ventilatory threshold until exhaustion. Before and after each protocol, a maximal voluntary contraction was performed, and the rate of force development and electromyographic parameters were assessed. After the hypertrophic strengthtraining and plyometric strength-training protocol, significant decreases were observed in the maximal voluntary contraction and rate of force development, whereas no changes were observed in the electromyographic parameters. Oxygen uptake and a heart rate during endurance exercise were not significantly different among the protocols. However, the time-to-exhaustion was significantly higher during endurance exercise alone than when performed after hypertrophic strength-training or plyometric strength-training (p <0.05). These results suggest that endurance performance may be impaired when preceded by strength-training, with no oxygen uptake or heart rate changes during the exercise.
Effectiveness of the Call in Beach Volleyball Attacking Play
Authors: Künzell Stefan , Schweikart Florian , Köhn Daniel , Schläppi-Lienhard Olivia 
Published: January 2015

Abstract
In beach volleyball the setter has the opportunity to give her or his hitter a “call”. The call intends that the setter suggests to her or his partner where to place the attack in the opponent’s court. The effectiveness of a call is still unknown. We investigated the women’s and men’s Swiss National Beach Volleyball Championships in 2011 and analyzed 2185 attacks. We found large differences between female and male players. While men called in only 38.4% of attacks, women used calls in 85.5% of attacks. If the male players followed a given call, 63% of the attacks were successful. The success rate of attacks without any call was 55.8% and 47.6% when the call was ignored. These differences were not significant (χ2(2) = 4.55, p = 0.103). In women’s beach volleyball, the rate of successful attacks was 61.5% when a call was followed, 35% for attacks without a call, and 42.6% when a call was ignored. The differences were highly significant (χ2(2) = 23.42, p < 0.0005). Taking into account the findings of the present study, we suggested that the call was effective in women’s beach volleyball, while its effect in men’s game was unclear. Considering the quality of calls we indicate that there is a significant potential to increase the effectiveness of a call.
Neuromuscular Responses to Simulated Brazilian Jiu-Jitsu Fights
Authors: Corrêa da Silva Bruno Victor , Neme Ide Bernardo , de Moura Simim Mário Antônio , Marocolo Moacir , da Mota Gustavo Ribeiro 
Published: January 2015

Abstract
The aim of this study was to investigate the neuromuscular performance responses following successive Brazilian Jiu-Jitsu (BJJ) fights. Twenty-three BJJ athletes (age: 26.3 ± 6.3 years; body mass: 79.4 ± 9.7 kg; body height: 1.80 ± 0.1 m) undertook 3 simulated BJJ fights (10 min duration each separated by 15 min of rest). Neuromuscular performance was measured by the bench press throw (BPT) and vertical counter movement jump (VCMJ) tests, assessed before the 1st fight (Pre) and after the last one (Post). Blood lactate (LA) was measured at Pre, 1 min Post, and 15 min Post fights. Paired t-tests were employed in order to compare the BPT and VCMJ results. One-way ANOVA with Bonferroni post hoc tests were utilized to compare LA responses. The results revealed a significant (p < 0.05) increase in VCMJ performance (40.8 ± 5.5 cm Pre vs. 42.0 ± 5.8 cm Post), but no significant changes in the BPT (814 ± 167 W Pre vs. 835 ± 213 W Post) were observed. LA concentration increased significantly (p < 0.05) at Post, both in the 1st min

and the 15th min

of recovery. We concluded that successive simulated BJJ fights demanded considerable anaerobic contribution of ATP supply, reinforcing the high-intensity intermittent nature of the sport. Nevertheless, no negative impact on acute neuromuscular performance (power) was observed.
Co-morditities of environmental diseases: A common cause
Authors: Zeliger Harold I. 
Published: January 2015

ABSTRACT
The global pandemic of non-vector borne environmental diseases may, in large part, be attributed to chronic exposures to ever increasing levels of exogenous lipophilic chemicals. These chemicals include persistent organic pollutants, semi-volatile compounds and low molecular weight hydrocarbons. Such chemicals facilitate the sequential absorption of otherwise not absorbed more toxic hydrophilic species that attack numerous body organs and systems, leading to environmental disease. Co-morbidities of noncommunicable environmental diseases are alarmingly high, with as many as half of all individuals chronically ill with two or more diseases. Co-morbidity is to be anticipated, since all of the causative chemicals identified have independently been shown to trigger the individual diseases.