bluuebunny/crossref_metadata_2025_split huggingface dataset:
Isokinetic Strength of Rotators, Flexors and Hip Extensors is Strongly Related to Front Kick Dynamics in Military Professionals
Authors: Vagner Michal , Malecek Jan , Tomšovský Luboš , Kubový Petr , Levitova Andrea , Stastny Petr 
Published: September 2019

Abstract
Achieving the maximum possible impact force of the front kick can be related to the isokinetic lower limb muscle strength. Therefore, we aimed to determine the regression model between kicking performance and the isokinetic peak net moment of hip rotators, flexors, and hip extensors and flexors at various speeds of contraction. Twenty-five male soldiers (27.7 ± 7.2 yrs, 83.8 ± 6.1 kg, 180.5 ± 6.5 cm) performed six barefoot front kicks, where impact forces (N) and kick velocity (m∙s-1) were measured. The 3D kinematics and isokinetic dynamometry were used to estimate the kick velocity, isokinetic moment of kicking lower limb hip flexors and extensors (60, 120, 240, 300°∙s-1), and stance lower limb hip internal and external rotators (30, 90°∙s-1). Multiple regression showed that a separate component of the peak moment concentric hip flexion and extension of the kicking lower limb at 90°∙s-1 can explain 54% of the peak kicking impact force variance (R2 = 0.54; p < 0.001). When adding the other 3 components of eccentric and concentric hip internal and external rotations at 30°∙s-1, the internal and external hip rotation ratios at 30°∙s-1 on the stance limb and the concentric ratio of kicking limb flexion and extension at 300°∙s-1 that explained the variance of impact force were 75% (p = 0.003). The explosive strength of kicking limb hip flexors and extensors is the main condition constraint for kicking performance. The maximum strength of stance limb internal and external rotators and speed strength of kicking limb hip flexors and extensors are important constraints of kicking performance that should be considered to improve the front kick efficiency.
Effectiveness of Whey Protein Hydrolysate and Milk-Based Formulated Drinks on Recovery of Strength and Power Following Acute Resistance Exercise
Authors: Gee Thomas I , Woolrich Thomas J , Smith Mark F 
Published: September 2019

Abstract
Intensive resistance exercise can result in exercise-induced-muscle-damage, which commonly leads to reductions in acute muscle function. Post-exercise ingestion of carbohydrate-protein mixtures intends to attenuate these effects. This study aimed to compare the effectiveness of whey protein hydrolysate and milk-based formulated drinks on recovery of muscle function following resistance exercise. Thirty resistance-trained males were randomly assigned to either whey hydrolysate and dextrose drink (WH), milk-based drink (MB) or flavored-dextrose (CHO), and performed baseline assessments of perceived-muscle-soreness, the countermovement jump, the seated-medicine-ball throw and isokinetic assessment of the knee extensors and flexors maximal strength. Subsequently, participants performed resistance exercise consisting of various multi-joint barbell exercises. Following resistance exercise participants then consumed either WH (533 Kcal, 32.6 g Protein, 98.3 g Carbohydrate, 1.1 g Fat), MB (532 Kcal, 32.8 g Protein, 98.4 g Carbohydrate, 0.6 g Fat) or CHO (531 Kcal, 0 g Protein, 132.7 g Carbohydrate, 0 g Fat). All assessments were repeated 24 and 48 h post-resistance exercise. Muscle soreness was markedly increased at 24 h and 48 h in all groups (p < 0.001). However, for dynamic power measures (countermovement jump, seated-medicine-ball throw), CHO experienced a decrease for the countermovement jump only at 48 h, whereas WH and MB experienced significant decreases across the countermovement jump and the seated-medicine-ball throw (p < 0.05). All groups experienced significant decreases in isokinetic-extension torque at both 24 h and 48 h; however, flexion torque was decreased for CHO only at these time points (p < 0.05). Consumption of WH or MB did not enhance recovery of dynamic power-producing ability or soreness compared to CHO. Based on within-group effects WH and MB ingestion had seemingly marginal to small positive effects on recovery of isokinetic strength, however, there were no between-group differences for these variables.
Tests for Price Indices in a Dynamic Item Universe
Authors: Zhang Li-Chun , Johansen Ingvild , Nygaard Ragnhild 
Published: September 2019

Abstract
There is generally a need to deal with quality change and new goods in the consumer price index due to the underlying dynamic item universe. Traditionally axiomatic tests are defined for a fixed universe. We propose five tests explicitly formulated for a dynamic item universe, and motivate them both from the perspectives of a cost-of-goods index and a cost-of-living index. None of the indices that are currently available for making use of scanner data satisfies all the tests at the same time. The set of tests provides a rigorous diagnostic for whether an index is completely appropriate in a dynamic item universe, as well as pointing towards the directions of possible remedies. We thus outline a large index family that potentially can satisfy all the tests.
Dosimetric comparison of jaw tracking in intensity modulated and volumetric modulated arc radiotherapy for carcinoma of cervix
Authors: Mani Karthick Raj , Muneem Muhtasim Aziz , Sultana Nazneen , Hossain Tanjina , Basharat Tabinda , Basu Saumen , Lingaiah Ramaa 
Published: September 2019

Abstract
Aim: To study the dosimetric advantages of the jaw tracking technique in intensity-modulated radiotherapy (IMRT) and volumetric modulated arc radiotherapy (VMAT) for carcinoma of cervix patients.
Materials and Methods: We retrospectively selected ten previously treated cervix patients in this study. All the ten patients underwent CT simulation along with immobilization and positional devices. Targets and organ at risks (OARs) were delineated slice by slice for all the patients. All the patients were planned for IMRT and VMAT with intend to deliver 50 Gy in 25 fractions. All the plans were planned with 6 MV photon beam using millennium-120 multi leaf collimator (MLC) using the TrueBeam linear accelerator. IMRT and VMAT plans were performed with jaw tracking (JT) and with static jaw (SJ) techniques by keeping the same constraints and priorities for the target volumes and critical structures for a particular patient. For standardization, all the plans were normalized to the target mean of the planning target volume. All the plans were accepted with the criteria of bladder mean dose < 40 Gy and rectum mean dose < 40 Gy without compromising the target volumes. Target conformity, dose to the critical structures and low dose volumes were recorded and analyzed for IMRT and VMAT plans with and without jaw tracking for all the patients.
Results: The conformity index average of all patients followed by standard deviation (̄x± σ̄x) for JT-IMRT, SJ-IMRT, JT-VMAT and SJ-VMAT were 1.176 ± 0.139, 1.175 ± 0.139, 1.193 ± 0.220 and 1.228 ± 0.192 and homogeneity index were 0.089 ± 0.022, 0.085 ± 0.024, 0.102 ± 0.016 and 0.101 ± 0.016. In low dose volume J,T-IMRT shows a 5.4% (p-value < 0.001) overall reduction in volume receiving at least 5 Gy (V5) compared to SJ-IMRT, whereas 1.2% reduction was observed in V5 volume in JT-VMAT compared to SJ-VMAT. JT-IMRT showed mean reduction in rectum and bladder of 1.34% (p-value < 0.001) and 1.46% (p-value < 0.001) compared to SJ-IMRT, while only 0.30% and 0.03% reduction were observed between JT-VMAT and SJ-VMAT. JT-IMRT plans also showed considerable dose reduction to inthe testine, right femoral head, left femoral head and cauda compared to the SJ-IMRT plans.
Conclusion: Jaw tracking resulted in decreased dose to critical structures in IMRT and VMAT plans. But significant dose reductions were observed for critical structures in the JT-IMRT compared to SJ-IMRT technique. In JT-VMAT plans dose reduction to the critical structures were not significant compared to the JT-IMRT due to relatively lesser monitor units in the VMAT plans.
Investigation of Land Use Types on Physical and Chemical Properties of Soil in a Basement Terrain
Authors: Alabi Aderemi A. , Aina Johnson O. , Adewale Adebambo O. , Ajanaku Abass A. 
Published: September 2019

Abstract
We assessed the effect of different land use types on the physical and chemical properties of soil. We analysed three cases. Nine soil samples were taken at different depths (0–10, 10–20 and 20–30 cm) from three locations, namely, sawmill, dumpsite and market. Analyses were carried out to determine the influences on the physical and chemical properties of the soil. All the land types had considerably high sand contents, with minor silt and clay. Available phosphorus and the exchangeable bases were significantly (p ≤ 0.05) affected by land use and soil depth. Moisture content (p ≤ 0.05) was significantly affected by land use, while bulk density (p ≤ 0.01) was significantly affected by soil depth. Soil organic matter and carbon were also generally low in all three locations. Consequently, ameliorative land management practices have to be adopted to prevent nutrient loss and land degradation.
Environment and Safety Impacts of Additive Manufacturing: A Review
Authors: Buranská Eva , Buranský Ivan , Morovič Ladislav , Líška Katarína 
Published: September 2019

Abstract
The paper is focused on additive manufacturing (AM) which is the process of producing objects from a three-dimensional (3D) model by joining materials layer by layer, as opposed to the subtractive manufacturing methodologies [1], directly from raw material in powder, liquid, sheet, or a filament form without the need for moulds, tools, or dies. The article demonstrates potential environmental implications of additive manufacturing related to the key issues including energy use, occupational health, waste and lifecycle impact. AM provides a cost-effective and time-efficient way to fabricating products with complicated geometries, advanced material properties and functionality. Based on this review, we identified that additive manufacturing will have a significant societal impact in the near future. A critical technical review of the promises and potential issues of AM is beneficial for advancing its further development.
The Maximum Explosion Pressure of Lignite in Dependence on Particle Size
Authors: Kuracina Richard , Szabová Zuzana 
Published: September 2019

Abstract
Floating coal dusts are always produced during coal mining process in the underground mines. In a coal mine and other coal processing or utilizing industries, there are always some potential safety problems, such as coal dust explosion accidents.[1,2] During lignite mining and processing, flammable coal dust is produced. Fire properties of coal dust depend on the particle size. The article deals with the measurement of explosion characteristics of lignite in dependence of particle size at three various concentrations. The measurements were carried out according to EN 14034-1+A1:2011 Determination of explosion characteristics of dust clouds. Part 1: Determination of the maximum explosion pressure pmax of dust clouds. Tests of the lignite dust clouds explosions showed that the maximum value of the pressure was reached at the concentrations of 500 g.m−3 and the particle size between 0 – 56 µm. At this concentration, the highest explosion pressure of 8.25 bar was reached.
Sorption of Methylene Blue by Alternative Adsorbents
Authors: Soldán Maroš , Kobetičová Hana , Štefko Tomáš 
Published: September 2019

Abstract
The presence of dyes in effluents is a major concern due to their adverse effects to many forms of life. Dyes are generally removed by conventional sorbents. This article discusses the use of adsorbents from the waste metal production (low-cost sorbents), red mud (RM) and black nickel mud (BNM), to remove methylene blue solution (MB) under different test conditions, such as time and temperature of sorption and weight of sorbent samples. From the obtained data, we can claim that the highest achieved sorption efficiency was achieved by a RM sorbent at 60 °C after 48 hours of sorption with all three weights of samples (83.01 – 83.72%).
Human Performance Tools Used as Incident Prevention Applied to a Construction Phase of a Nuclear Power Plant Mochovce
Authors: Rolinec Marek , Balog Karol 
Published: September 2019

Abstract
In order to manage the Construction Safety in a professional and due manner, it is of the key importance to have in place an Occupational Health and Safety Management System, consisting, similarly as a house project, of correct foundations as preparation, planning, procurement, properly set up rules and contractual relations, especially if a site of approx. 5,000 daily manpower is of a concern. Pillars of safe construction follow, i.e. education and training, inspections, communication and, last but not least, human behaviour. The purpose of the following article is to introduce the Human Behaviour Improvement Tools applied in the NPP Mochovce, completion process of Units 3&4, focusing on the implementation and the observance of the OH&S rules.
Optimization of Two-Step Alkali Process of Lignin Removal from Basswood
Authors: Wachter Igor , Štefko Tomáš , Rolinec Marek 
Published: September 2019

Abstract
The aim of the research described in this article was to optimize the basic sulphur process of lignin removal from the raw radially cut basswood (Tilia Cordata) pieces of various thicknesses. Lignin removal took place chemically in several consecutive steps in which the influence of individual parameters was investigated (solutions of NaOH + Na2SO3, KOH + Na2SO3, its concentrations, time of leaching, efficacy of whitening agents, effect of sample washing between individual baths, etc.). Through experiments, it was found that the change of fresh NaOH + Na2SO3 solution during the experiment had no significant effect. In contrast, skipping the washing of the samples with boiling distilled water after the hydroxide bath had a significant effect on the rate and efficiency of lignin removal with H2O2 in the following step. When comparing the lignin removal efficiency of NaOH + Na2SO3 and KOH + Na2SO3, the delignification process was clearly demonstrated to be more effective using the KOH + Na2SO3 solution. Application of the above-mentioned procedures has helped to streamline the lignin removal process from solid basswood.
Risks Resulting from Reverse of Modification of Expansion Weapons
Authors: Čekan Pavol , Belica Eugen , Sobrino Daynier Rolando Delgado 
Published: September 2019

Abstract
In general, the probability of an undesirable event occurring and its consequence is the gist of the risk characteristics. Thus, risk is part of all the activities that a person performs. The use of weapons and possession of weapons is a great risk. It makes difference who owns them, where they are used and under what circumstances. At present, the great risk is also associated with the possession and use of expansion weapons, also called acoustic weapons. This issue is still very sensitive; the aim of this article is to highlight the risks of reverse modification of such weapons. Publication of this contribution does not support or otherwise supports the use and sale of any type of weapons.
Elimination of Excessive Noise at the Open Office Workplace
Authors: Čekan Pavol , Rusko Miroslav , Iľko Ján , Pietrucha Dieter 
Published: September 2019

Abstract
Open-plan office is a distraction to employee performance. According to a study by Cornell University, Ithaca, NY, working in a noisy office with ringtones, business conversations and office equipment sounds can lead to heart disease, because workplace noise causes stress. The paper focuses on noise analysis in an open-office work environment, the effect of noise on the selected operational position, as determined by standardized noise exposure LEX, 8h. Based on the results obtained, appropriate measures were proposed.
Effect of using insert on the flow pressure in cylindrical silo
Authors: Hammadeh Hala , Askifi Farzat , Ubysz Andrzej , Maj Marek , Zeno Amjad 
Published: September 2019

Abstract
This paper presents an experimental investigation of the discharge flow pressure in the vertical silo and the hopper due to the use of insert (top cone with trunk cone bottom). Using the Insert inside the silos is one of the proposed solutions to avoid the problems of having funnel flow pattern, which has a significant effect on the distribution of flow pressure exerted on the silo wall and the hopper. The experiments were performed on a metal cylinder prototype; corn was used as a granular material, and the wall and hopper pressure distribution was measured by a special pressure transducer. The experiments revealed an important result in the flow pressure due to the change in the location of the insert. The experiments were conducted in Damascus University laboratories.
The Unemployment of Highly Educated People in Romania. A Panel VAR Approach
Authors: Simionescu Mihaela , Naroș Maria-Simona 
Published: September 2019

Abstract
The insertion of graduates of higher education on the labor market is one of the problems faced by the Romanian labor market. Based on a VAR model in the panel, the number of unemployed with higher education in Romania is explained in correlation with variables related to the educational environment. As the number of graduates, the number of teaching staff and the number of faculties increase the unemployment rate among people with higher education also increases slightly, showing that they have not immediately integrated into the labor market. A shock (an innovation) in the series of unemployed numbers results in an increase in the number of unemployed and a long-term stabilization of the influence to positive values. A shock to the data series on the number of graduates, the number of faculties and teaching staff does not have an immediate effect on the number of unemployed with higher education.
Supporting Ecological Innovation as a Factor for Economic Development
Authors: Loučanová Erika , Olšiaková Miriam 
Published: September 2019

Abstract
The paper deals with the evaluation of the ecological innovation as a factor for economic development through the correlation and regression analysis. The paper.analysis the.total ecological.innovation index of Slovakia within the.European Union and in relationship to growth GDP of Slovakia. Correlation and. regression analysis. examines the interdependence between.total ecological innovation index and economic growth. GDP is one of the key elements of effective support for eco-innovation.
The Dynamics of Savings Mobilisation in Lesotho
Authors: Simelane Bongile , Odhiambo Nicholas M. 
Published: September 2019

Abstract
This paper provides a conceptual analysis of the dynamics of savings in Lesotho for the period 1960 to 2017. The study is motivated by the low and sometimes negative savings rate and the declining level of economic growth prevailing in Lesotho during the period from 1960 to 2017. The study analyses the behaviour of savings in Lesotho, using the savings trends for the country ever since it obtained independence in 1966. The study further examines the policies that the government of Lesotho has implemented in order to promote savings in the country. The government adopted a policy on rural savings and credit schemes as a means of promoting savings in Lesotho. The purpose of the policy is to improve access to credit for the rural population. The study has identified some challenges that impede savings mobilization in Lesotho. The major savings challenge in Lesotho is the lack of banking facilities in rural areas.
Dedekind’s Criterion and Integral Bases
Authors: Fadil Lhoussain El 
Published: September 2019

Abstract
Let R be a principal ideal domain with quotient field K, and L = K(α), where α is a root of a monic irreducible polynomial F (x) ∈ R[x]. Let ℤ
L
be the integral closure of R in L. In this paper, for every prime p of R, we give a new efficient version of Dedekind’s criterion in R, i.e., necessary and sufficient conditions on F (x) to have p not dividing the index [ℤ
L
: R[α]], for every prime p of R. Some computational examples are given for R = ℤ.
Correlation Distribution Analysis of a Two-Round Key-Alternating Block Cipher
Authors: Kraleva Liliya , Rijmen Vincent , Manev Nikolai L. 
Published: September 2019

Abstract
In this paper we study two-round key-alternating block ciphers with round function f (x)= x
(2
t
+1)2
s

, where t, s are positive integers. An algorithm to compute the distribution weight in respect to input and output masks is described. Also, in the case t = 1 the correlation distributions depending on input and output masks are completely determined for arbitrary pairs of masks.
Tabu Cryptanalysis of VMPC Stream Cipher
Authors: Polak Iwona , Boryczka Mariusz 
Published: September 2019

Abstract
In the era of global informatization, transmitting and storing information in digital form it is very important to ensure an adequate level of security of ciphers used. Cryptanalysis deals with studying the level of security, thus exposing the weakness of theoretical and implemented cryptographic solutions. In this paper cryptanalysis of stream cipher VMPC using Tabu Search is shown. From estimates made on a full version of VMPC cipher we concluded that about 2157 possibilities needs to be checked in order to find the proper one, which would be the best attack known so far.