bluuebunny/crossref_metadata_2025_split huggingface dataset:
Very large hail occurrence in Poland from 2007 to 2015
Authors: Pilorz Wojciech 
Published: January 2016

Abstract
Very large hail is known as a presence of a hailstone greater or equal to 5 cm in diameter. This phenomenon is rare but its significant consequences, not only to agriculture but also to automobiles, households and people outdoor makes it essential thing to examine. Hail appearance is strictly connected with storms frequency and its kind. The most hail-endangered kind of storm is supercell storm. Geographical distribution of hailstorms was compared with geographical distribution of storms in Poland. Similarities were found. The area of the largest number of storms is southeastern Poland. Analyzed European Severe Weather Database (ESWD) data showed that most of very large hail reports occurred in this part of Poland. The probable reason for this situation is the longest period of lasting tropical airmasses in southeastern Poland. Spatial distribution analysis shows also more hail incidents over Upper Silesia, Lesser Poland, Subcarpathia and Świętokrzyskie regions. The information source about hail occurrence was ESWD - open database, where everyone can add report and find reports which meet given search criteria. 69 hailstorms in the period of 2007 - 2015 were examined. They caused 121 very large hail reports. It was found that there is large disproportion in number of hailstorms and hail reports between individual years. Very large hail season in Poland begins in May and ends in September with cumulation in July. Most of hail occurs between 12:00 and 17:00 UTC, but there were some cases of very large (one extremely large) hail at night and early morning hours. However very large hail is a spectacular phenomenon, its local character determines potentially high information loss rate and it is the most significant problem in hail research.
Kinematic Adaptations of Forward and Backward Walking on Land and in Water
Authors: Cadenas-Sanchez Cristina , Arellano Raúl , Vanrenterghem Jos , López-Contreras Gracia 
Published: January 2016

Abstract
The aim of this study was to compare sagittal plane lower limb kinematics during walking on land and submerged to the hip in water. Eight healthy adults (age 22.1 ± 1.1 years, body height 174.8 ± 7.1 cm, body mass 63.4 ± 6.2 kg) were asked to cover a distance of 10 m at comfortable speed with controlled step frequency, walking forward or backward. Sagittal plane lower limb kinematics were obtained from three dimensional video analysis to compare spatiotemporal gait parameters and joint angles at selected events using two-way repeated measures ANOVA. Key findings were a reduced walking speed, stride length, step length and a support phase in water, and step length asymmetry was higher compared to the land condition (p<0.05). At initial contact, knees and hips were more flexed during walking forward in water, whilst, ankles were more dorsiflexed during walking backward in water. At final stance, knees and ankles were more flexed during forward walking, whilst the hip was more flexed during backward walking. These results show how walking in water differs from walking on land, and provide valuable insights into the development and prescription of rehabilitation and training programs.
Central and Peripheral Fatigue During Resistance Exercise – A Critical Review
Authors: Zając Adam , Chalimoniuk Małgorzata , Gołaś Artur , Lngfort Józef , Maszczyk Adam 
Published: January 2016

Abstract
Resistance exercise is a popular form of conditioning for numerous sport disciplines, and recently different modes of strength training are being evaluated for health benefits. Resistance exercise differs significantly in nature, and several variables determine the direction and range of adaptive changes that occur in the muscular and skeletal system of the body. Some modes of resistance training can also be effective in stimulating the cardiovascular system. These variables include exercise selection (general, specific, single or multi joint, dynamic, explosive), type of resistance (free weights, variable resistance, isokinetics), order of exercise (upper and lower body or push and pull exercises), and most of all the training load which includes intensity expressed as % of 1RM, number of repetitions, number of sets and the rest interval between sets. Manipulating these variables allows for specific adaptive changes which may include gains in muscle mass, muscle strength or muscle endurance. It has been well established that during resistance exercise fatigue occurs, regardless of the volume and intensity of work applied. The peripheral mechanisms of fatigue have been studied and explained in more detail than those related to the CNS. This review is an attempt to bring together the latest knowledge regarding fatigue, both peripheral and central, during resistance exercise. The authors of this review concentrated on physiological and biochemical mechanisms underlying fatigue in exercises performed with maximal intensity, as well as those performed to exhaustion with numerous repetitions and submaximal load.
Physiological Adaptations to Training in Competitive Swimming: A Systematic Review
Authors: Costa Mário J. , Balasekaran Govindasamy , Vilas-Boas J. Paulo , Barbosa Tiago M. 
Published: January 2016

Abstract
The purpose of this systematic review was to summarize longitudinal studies on swimming physiology and get implications for daily practice. A computerized search of databases according to the PRISMA statement was employed. Studies were screened for eligibility on inclusion criteria: (i) present two testing points; (ii) on swimming physiology; (iii) using adult elite swimmers; (iv) no case-studies or with small sample sizes. Two independent reviewers used a checklist to assess the methodological quality of the studies. Thirty-four studies selected for analysis were gathered into five main categories: blood composition (n=7), endocrine secretion (n=11), muscle biochemistry (n=7), cardiovascular response (n=8) and the energetic profile (n=14). The mean quality index was 10.58 ± 2.19 points demonstrating an almost perfect agreement between reviewers (K = 0.93). It can be concluded that the mixed findings in the literature are due to the diversity of the experimental designs. Micro variables obtained at the cellular or molecular level are sensitive measures and demonstrate overtraining signs and health symptoms. The improvement of macro variables (i.e. main physiological systems) is limited and may depend on the athletes’ training background and experience.
Knee Muscles Isokinetic Evaluation after a Six-Month Regular Combined Swim and Dry-Land Strength Training Period in Adolescent Competitive Swimmers
Authors: Dalamitros Athanasios A. , Manou Vasiliki , Christoulas Kosmas , Kellis Spiros 
Published: January 2016

Abstract
Previous studies demonstrated significant increases in the shoulder internal rotators’ peak torque values and unilateral muscular imbalances of the shoulder rotators after a competitive swim period. However, there are no similar data concerning the knee muscles. The purpose of the current study was to examine the effects of a six-month training period on knee flexor and extensor peak torque values, examine a possible bilateral strength deficit and evaluate the unilateral strength balance in competitive swimmers. Eleven male adolescent swimmers (age: 14.82 ± 0.45 years) were tested for concentric knee extension and flexion peak torque (60°/s) with an isokinetic dynamometer, before and after a regular combined swim and dry-land strength training period. A trend towards greater improvements in the knee extensor compared to flexor muscles peak torque was observed. Furthermore, the bilateral strength deficit remained almost unchanged, whereas unilateral strength imbalance was increased for both limbs. However, all results were nonsignificant (p > 0.05). According to the data presented, a six-month regular combined swim and dry-land strength training period caused non-significant alterations for all the parameters evaluated during isokinetic testing. This study highlights the fact that competitive adolescent swimmers demonstrated unilateral knee strength imbalances throughout a long period of their yearly training macrocycle.
Selected Cognitive Abilities in Elite Youth Soccer Players
Authors: Baláková Veronika , Boschek Petr , Skalíková Lucie 
Published: January 2016

Abstract
The identification of talent in soccer is critical to various programs. Although many research findings have been presented, there have been only a few attempts to assess their validity. The aim of this study was to determine the relationship between talent and achievement variables in the Vienna Test System. The participants were 91 Czech soccer players, representing four youth soccer teams, who were born in the year 2000. These boys were divided into two groups according to their coaches’ assessments using a TALENT questionnaire. A two-factor model (component 1: “kinetic finesse”; component 2: “mental strength”) was designed to interpret the responses of the coaches on the questionnaire. The Vienna Test System was used to determine the level of players’ cognitive abilities. In total, the subjects performed seven tests in the following order: Raven’s Standard Progressive Matrices (SPM), a reaction test (RT), a determination test (DT), a visual pursuit test (LVT), a Corsi Block-Tapping Test (CORSI), a time/movement anticipation test (ZBA), and a peripheral perception test (PP). To analyze the relationship between talent and achievement variables within the Vienna Test System, correlation analyses were performed. The results revealed that the talented group attained significantly better results on only 1 of the 16 variables, which was ZBA2: movement anticipation - deviation of movement median (r = .217, p = .019). A comparison of the two talent components showed that component 1 (“kinetic finesse”) was a more significant factor than component 2 (“mental strength”). Although we observed statistically significant correlations, their actual significance remains questionable; thus, further research is required.
Characterisation of dairy soiled water in a survey of 60 Irish dairy farms
Authors: Minogue D. , French P. , Bolger T. , Murphy P.N.C. 
Published: January 2016

AbstractDairy farming in Ireland generates an effluent known as dairy soiled water (DSW), which consists of a relatively dilute mixture of cow faeces, urine, spilt milk and detergents that is typically applied to grassland. However, relatively little is known about the volumes generated, nutrient content and management factors that influence volume and concentration. Sixty dairy farms that had a separate storage tank for storing DSW were selected for this study. The spatial distribution of the farms reflected the spatial distribution of dairy cows across the 26 counties of the Republic of Ireland, with each farm representing between 10,000 and 20,000 dairy cows. Samples were analysed for biochemical oxygen demand (BOD), ammonium N (NH4-N), total nitrogen (TN), potassium (K), phosphorus (molybdate-reactive and total) (MRP and TP) and dry matter (DM) content. Management characteristics and parlour properties were quantified. Factors influencing volume and concentration of DSW were determined using mixed model multiple regression analysis. On average, 9784 l (standard error 209 l) of DSW, including rainfall, was produced cow−1year−1and this contained significant quantities of total N, P and K (587, 80 and 568 mg l−1, respectively). A typical Irish dairy farm stocked at 1.9 cows ha−1could therefore supply approximately 13, 2 and 12 kg ha−1of total N, P and K, respectively, across the farm, annually to meet some of the nutrient requirements for herbage production and potentially replace some of the synthetic fertilizer use. Seventy one percent of samples were within the regulated concentration limits of soiled water for BOD (<2500 mg l−1), rising to 87% during the closed period for slurry spreading (mid October to mid-late January), while 81% were within the concentration limits for DM (<1% DM), rising to 94% during the closed period. The efficiency of a milking parlour (cows per unit, time taken) plays a key role in determining the volume of DSW generated. This, in turn, also influences the concentration of nutrients and other chemicals. Large variability was found in nutrient concentrations and this presents a challenge for effective nutrient management to maximise the fertilizer replacement value of DSW.
Comparison of herbage yield, nutritive value and ensilability traits of three ryegrass species evaluated for the Irish Recommended List
Authors: Burns G. A. , O’Kiely P. , Grogan D. , Watson S. , Gilliland T. J. 
Published: January 2016

Abstract
This study examined 169 of the newest varieties of three ryegrass species, perennial (Lolium perenne L.), Italian (Lolium multiflorum Lam.) and hybrid (Lolium boucheanum Kunth), from Recommended List trials in Ireland. The traits examined were yield, dry matter concentration, three nutritive value traits (in vitro dry matter digestibility, water-soluble carbohydrate on a dry matter basis and crude protein concentration) and two ensilability traits (buffering capacity and water soluble carbohydrate concentration on an aqueous phase basis). Varietal monocultures of each species underwent a six cut combined simulated grazing and silage management in each of two years following sowing. Perennial ryegrass yielded less than both other species in one-year-old swards, but less than only Italian ryegrass in two-year-old swards, but generally had the higher in vitro dry matter digestibility and crude protein values. Italian ryegrass displayed the most favourable ensilability characteristics of the three species with perennial ryegrass less favourable and hybrid ryegrass intermediate. Overall, despite the high yields and favourable nutritive value and ensilability traits recorded, the general differences between the three ryegrass species studied were in line with industry expectations. These findings justify assessing the nutritive value and ensilability of ryegrass species, in addition to yield, to allow farmers select species that match farming enterprise requirements.
Boron application in red clover (Trifolium pratense L.) seed production
Authors: Tomić Dalibor , Stevović Vladeta , Đurović Dragan , Madić Milomirka , Bokan Nikola , Stanisavljević Rade 
Published: January 2016

AbstractA field trial with four red clover cultivars was established on acid soil in order to evaluate the effect of foliar boron application on seed yield. The crop received foliar boron treatment during the second growth of the second year at two applications. Although seed yield showed a significant increase in boron-treated plants in 2011 compared with control (26.0%), its relative increase was far higher in 2010 (43.2%), which had increased total rainfall amounts during flowering. Sufficient level of boron supply to red clover plants for seed production has a remarkably positive effect under conditions hampering pollination and fertilisation.
Transformative Adult Learning in New Social Movement – a Case Study from South Africa
Authors: Čubajevaitė Marta 
Published: January 2016

Abstract
New social movements in South Africa could play a prominent role in mobilizing the communities to reflect critically and address the repercussions of the neo-liberal agenda which manifests itself in perpetual exclusion of under-educated adults and provision of poor quality education.
Few studies especially from the perspective of the activists leave a potential research area of a very interesting phenomenon of how people learn while struggling for social justice. Therefore this article based on a single multi-site case study on a social movement cohering around literacy issues in Gauteng, South Africa, aims at answering, what forms of learning and education the social movement encompassed, how did the group conscientization occur and what are the individual transformations.
Semi-structured interviews and a focus group discussion were held with 13 learnersactivists and 2 adult educators. By applying Mezirow’s individual transformation and Freirean group conscientization models the analysis of primary and secondary data, revealed that the engagement in the social movement challenged and changed learnersactivists’ understanding of educational status within their respective communities. This in turn led to transformative action addressing the problems identified. On the individual level, some learners-activists became more tolerant and willing to cooperate with those of different political ideologies, able to tap into community resources. Finally, the potential of social movements as adult learning environments are outlined.
Investigation on Electrothermoelastic Behavior of FGPM Cylindrical Shells
Authors: Dai Hong-Liang , Qi Yi-Nan , Luo Wei-Feng 
Published: January 2016

Abstract
This paper presents an analytical solution for electrothermoelastic behavior of FGPM (functionally graded piezoelectric material) cylindrical shell. The cylindrical shell is assumed to be made up of two piezoelectric materials with their volume fractures varying along the thickness according to a simple power law. Based on classical thin shell theory, an analytical solution for electrothermoelastic performance of the FGPM cylindrical shell is presented. To investigate the influence of the power lower exponent, thermal environment, mechanical loading and electric boundary conditions on the electrothermoelastic behavior of FGPM cylindrical shells, numerical examples are presented and discussed, and some meaningful and valuable results are discovered, which will be very helpful for the design and application of such smart sensory structures.
Orphans as agents for change
Authors: Gjotterud Sigrid Mari , Krogh Erling , Dyngeland Cecilie , Mwakasumba Nicholaus Solomon 
Published: January 2016

Abstract
Transformative experiences can happen at unexpected times, in unexpected ways. This paper tells the story of how a gift of a goat can lead to the transformation of a life. Many organisations globally are engaged in a struggle to overcome poverty and injustice by providing livestock as a means for transformation. The animals in themselves are not enough for the transformed lives; they can be a valuable starting point. In the Uluguru Mountains in Tanzania, a Tanzanian and a Norwegian together took one such initiative in order to support teen-age orphans, one of the most vulnerable groups in the community who were struggling to survive. As practitioners and researchers, the four authors had been taking part in the development of the Mgeta Orphan Education Foundation (MOEF), which had developed through action learning/action research. Selected students received a goat and training, and the opportunity to join and develop a network of orphans throughout the region. In this article, we discuss the benefits and challenges the orphaned youngsters face when joining the foundation. How do they benefit from having the goat and what are the challenges, how do they learn and how do they contribute to fellow farmers in their communities? We claim that many of the students have experienced transformation, and provide examples to give evidence of this claim. However, the students are not the only ones who are transforming; so are we who, as co-researchers, have had the opportunity to play a role in and witness their efforts.
Influence Of Membership Function’s Shape On Portfolio Optimization Results
Authors: Rutkowska Aleksandra 
Published: January 2016

Abstract
Portfolio optimization, one of the most rapidly growing field of modern finance, is selection process, by which investor chooses the proportion of different securities and other assets to held. This paper studies the influence of membership function’s shape on the result of fuzzy portfolio optimization and focused on portfolio selection problem based on credibility measure. Four different shapes of the membership function are examined in the context of the most popular optimization problems: mean-variance, mean-semivariance, entropy minimization, value-at-risk minimization. The analysis takes into account both: the study of necessary and sufficient conditions for the existence of extremes, as well as the statistical inference about the differences based on simulation.
Antinociceptive and anti-inflammatory potentials of kolaviron: mechanisms of action
Authors: Onasanwo Samuel A. , Rotu Rume A. 
Published: January 2016

Abstract

Background: Major attention has been on dietary and medicinal phytochemicals that inhibit or reverse abnormal conditions caused by nociceptive and inflammatory stimuli. Garcinia kola (Guttiferae) seed, known as “bitter kola”, plays an important role in African ethno-medicine and traditional hospitality like in the treatment of inflammation, colds, bronchitis, bacterial, and viral infections. A number of useful phytochemicals have been isolated from the seed, and the most prominent of them is kolaviron (Garcinia bioflavonoid), which has been suggested to have antinociceptive and anti-inflammatory potentials. The aim of this experiment is to explore the mechanisms of action of the antinociceptive and anti-inflammatory potentials of kolaviron.

Methods: The probable mechanisms of action of kolaviron were assessed by using naloxone, prazosin, and atropine to investigate the involvement of adrenergic, opioidergic, and cholinergic systems, respectively, using tail flick, the acetic acid-induced writhing, formalin-induced paw licking, and carrageenan-induced paw edema models. Also, hematoxylin and eosin (H&E) staining was used to analyze the level of inflammation.

Results: In the acetic acid-induced writhing test in mice, pretreatment with naloxone, prazosin, and atropine significantly reversed the antinociception effects of kolaviron (200 mg/kg) when compared with control and kolaviron groups. In the formalin-induced paw licking test in mice, there was a significant decrease on the antinociceptive effects of kolaviron in the late phase when compared with the control, while the pretreatment with naloxone and prazosin significantly reversed the antinociception of kolaviron but atropine did not have any significant decrease when compared with the kolaviron group. In the tail flick latency assay in rats, pretreatment with naloxone and prazosin significantly reversed the antinociception of kolaviron but atropine; however, did not have any significant increase when compared with the control and kolaviron groups. The result of the study also shows a highly significant inhibition of paw edema in the carrageenan-induced receiving kolaviron when compared with the vehicle carrageenan-induced groups. Histological staining also showed that kolaviron significantly reduced the infiltration of inflammatory cells in the paw tissues.

Conclusions: Kolaviron possesses antinociceptive and anti-inflammatory activity, both centrally and peripherally, which justifies its folkloric use to relieve pain and inflammation. It may be exerting its effects through mechanisms that involve opioidergic and adrenergic systems, and may not involve the cholinergic system.
Isomorphisms and automorphisms
of extensions of bilinear
dimensional dual hyperovals and quadratic APN functions
Authors: Dempwolff Ulrich , Edel Yves 
Published: January 2016

Abstract
In [J. Algebraic Combin. 39 (2014), 457–496] an extension construction of
(n + 1)-dimensional dual hyperovals using n-dimensional
bilinear dual hyperovals was introduced.
Related to this construction is a construction of APN functions
in dimension n + 1 using two APN functions in dimension n.
In this paper we show that the isomorphism
problem for the (n + 1)-dimensional extensions can be
reduced to the isomorphism
problem of the initial n-dimensional objects.
The automorphism problem can be reduced in an
analogous way.