bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Sport-related Games on High School Students’ Communication Skills
Authors: Ozturk Ozden Tepekoylu , Ozbey Selhan , Camliyer Hatice 
Published: November 2015

Abstract
In Recent studies underline the fact that adolescents are, at many times, likely to experience serious communication problems with their families and close environments. So, the aim of this study is to determine positive impact of sport-related games, which are performed as extracurricular activities, on high school students’ communication skills. In the study, pre, & post-tests was utilized with the control group’s experimental patterns. Two participant groups were made up of totally 30 high school students, 15 of whom would be in the experimental group and the rest of whom were in the control group. The former group was given sport- related 20 applications for 10 weeks during which the latter group would not deal with any extracurricular activities. Meanwhile, before and after the applications, data was collected by means of “The Communication Skills Scale” which was developed by Korkut (1996) and then analysed through “two-way ANCOVA” test techniques. Results clarify that the considerable gap in scores of the students’ pre, & post-tests perception concerning their communication skills are clearly attributed to sport-related games and it was also established that scores of the students in the experimental group were meaningfully higher than ones in the control group. However, perception of communication skills in the both groups was not significantly different by sex of the students. Moreover, the common effect of sex and participation on sport- related games was not found statistically meaningful in terms of communication skills. Consequently, it could be said that sport-related games impact positively communication skills.
Everyday Physical Education: Functional and Dysfunctional Consequences in Hungarian Public Education
Authors: Vamos Ảgnes , Doczi Tamas 
Published: November 2015

Abstract
In Participation in physical education is considered to be a fundamental right of pupils all over the world. In Hungary, where the rich elite sports traditions of the country are paralleled by the population’s moderate physical activity, the challenge posed by non-communicable diseases and growing obesity figures among youth was addressed by the introduction of daily P.E. in public education starting in the 2012/13 academic year. The objective of the present paper is to discuss, based on empirical research, the intended and unintended consequences of this measure in an educational and social context using the qualitative analysis of the views of key stakeholders and the quantitative analysis of statistical data on the infrastructural and personal conditions of P.E. The results indicate that neither before nor after the enforcement of the Act on Public Education were the infrastructural and personal conditions of daily P.E. created and, in addition to the intended consequences, a number of unintended consequences have also been encountered by various stakeholders. The study can also be regarded as an attempt to reveal these dysfunctions in order to contribute to positive changes in the area.
Mixed spectral AKNS hierarchy from linear isospectral problem
and its exact solutions
Authors: Zhang Sheng , Gao Xu-Dong 
Published: November 2015

Abstract
In this paper, the AKNS isospectral problem and
its corresponding time evolution are generalized by embedding
three coefficient functions. Starting from the generalizedAKNS
isospectral problem, a mixed spectralAKNS
hierarchy with variable coefficients is derived. Thanks to
the selectivity of these coefficient functions, the mixed
spectral AKNS hierarchy contains not only isospectral
equations but also nonisospectral equations. Based on a
systematic analysis of the related direct and inverse scattering
problems, exact solutions of the mixed spectral
AKNS hierarchy are obtained through the inverse scattering
transformation. In the case of reflectionless potentials,
the obtained exact solutions are reduced to n-soliton solutions.
This paper shows that the AKNS spectral problem
being nonisospectral is not a necessary condition to
construct a nonisospectral AKNS hierarchy and that the
inverse scattering transformation can be used for solving
some other variable-coefficient mixed hierarchies of
isospectral equations and nonisospectral equations.
2-D isotropic negative refractive index in a N-type four-level
atomic system
Authors: Zhao Shun-Cai , Wu Qi-Xuan , Ma Kun 
Published: November 2015

Abstract
2-D(Two-dimensional) isotropic negative refractive
index (NRI) is explicitly realized via the orthogonal
signal and coupling standing-wave fields coupling the Ntype
four-level atomic system. Under some key parameters
of the dense vapour media, the atomic system exhibits
isotropic NRI with simultaneous negative permittivity
and permeability (i.e. left-handedness) in the 2-D x-y
plane. Compared with other 2-D NRI schemes, the coherent
atomic vapour media in our scheme may be an ideal
2-D isotropic NRI candidate and has some potential advantages,
significance or applications in the further investigation.
A local description of dark energy in terms of classical
two-component massive spin-one uncharged fields on
spacetimes with torsionful affinities
Authors: Cardoso Jorge G. 
Published: November 2015

Abstract
It is assumed that the two-component spinor formalisms
for curved spacetimes that are endowed with torsionful
affine connexions can supply a local description
of dark energy in terms of classical massive spin-one uncharged
fields. The relevant wave functions are related to
torsional affine potentials which bear invariance under
the action of the generalized Weyl gauge group. Such potentials
are thus taken to carry an observable character
and emerge from contracted spin affinities whose patterns
are chosen in a suitable way. New covariant calculational
techniques are then developed towards deriving explicitly
the wave equations that supposedly control the propagation
in spacetime of the dark energy background. What immediately
comes out of this derivation is a presumably natural
display of interactions between the fields and both
spin torsion and curvatures. The physical properties that
may arise directly fromthe solutions to thewave equations
are not brought out.
Explicit and implicit attitudes toward academic cheating and its frequency among university students
Authors: Sanecka Elżbieta , Baran Lidia 
Published: November 2015

Abstract
Our study examines the relation between explicit and implicit attitudes toward academic cheating and the frequency of committing it among students of different faculties (pedagogy and psychology, and law and administration). The implicit attitudes were measured using two methods - the Implicit Association Test (IAT) and Implicit Relational Assessment Procedure (IRAP). As hypothesized, the explicit attitude toward academic cheating was positively related to the its frequency. Results indicate that the implicit measures did not predict the frequency of self-reported academic cheating behaviours. The field of study itself was not a differentiating factor for any studied variables. The methodological problems related with using IAT and IRAP as measures of implicit attitudes toward cheating and the study’s possible limitations were discussed.
Studies of polypropylene membrane fouling during microfiltration of broth with Citrobacter freundii bacteria
Authors: Gryta Marek , Waszak Marta , Tomaszewska Maria 
Published: November 2015

Abstract
In this work a fouling study of polypropylene membranes used for microfiltration of glycerol solutions fermented by Citrobacter freundii bacteria was presented. The permeate free of C. freundii bacteria and having a turbidity in the range of 0.72–1.46 NTU was obtained. However, the initial permeate flux (100–110 L/m2h at 30 kPa of transmembrane pressure) was decreased 3–5 fold during 2–3 h of process duration. The performed scanning electron microscope observations confirmed that the filtered bacteria and suspensions present in the broth formed a cake layer on the membrane surface. A method of periodical module rinsing was used for restriction of the fouling influence on a flux decline. Rinsing with water removed most of the bacteria from the membrane surface, but did not permit to restore the initial permeate flux. It was confirmed that the irreversible fouling was dominated during broth filtration. The formed deposit was removed using a 1 wt% solution of sodium hydroxide as a rinsing solution.
Morphology and the physical and thermal properties of thermoplastic polyurethane reinforced with thermally reduced graphene oxide
Authors: Strankowski Michał , Piszczyk Łukasz , Kosmela Paulina , Korzeniewski Piotr 
Published: November 2015

Abstract
In this study, thermally reduced graphene oxide (TRG)-containing polyurethane nanocomposites were obtained by the extrusion method. The content of TRG incorporated into polyurethane elastomer systems equaled 0.5, 1.0, 2.0 and 3.0 wt%. The morphology, static and dynamic mechanical properties, and thermal stability of the modified materials were investigated. The application of TRG resulted in a visible increase in material stiffness as confirmed by the measurements of complex compression modulus (E′) and glass transition temperature (Tg). The Tg increased with increasing content of nanofiller in the thermoplastic system. The addition of thermally reduced graphene oxide had a slight effect on thermal stability of the obtained materials. The incorporation of 0.5, 1.0, 2.0 and 3.0 wt% of TRG into a system resulted in increased char residues compared to unmodified PU elastomer. Also, this study demonstrated that after exceeding a specific amount of TRG, the physicomechanical properties of modified materials start to deteriorate.
Apoptotic-like changes of boar spermatozoa in freezing media supplemented with different antioxidants
Authors: Trzcińska M. , Bryła M. 
Published: November 2015

Abstract
This study evaluated the effect of supplementing the freezing extender with exogenous anti-oxidants on apoptotic-like changes in post-thaw boar spermatozoa. A total of 36 ejaculates were resuspended in standard lactose-egg yolk-glycerol extender supplemented with antioxidant to final concentrations of 0 (as control), 2.5mM GSH (group I), 5.0 mM GSH (group II), 150 IU/mL SOD (group III), 300 IU/mL SOD (group IV), 200 IU/mL CAT (group V), 400 IU/mL CAT (group VI), 150 IU/mL SOD+200 IU/mL CAT (group VII), 300 IU/mL SOD+400 IU/mL CAT (group VIII). Sperm motility and apoptotic-like changes were determined before and after freeze-thawing. The various markers of apoptotic-like changes were measured: plasma membrane permeability by YO-PRO-1/PI assay, phosphatidylserine (PS) translocation across the plasma membrane using fluorescein-labeled Annexin-V, mitochondrial transmembrane potential detected by JC-1, and DNA fragmentation evaluated by TUNEL assay. The highest percentage of progressive motile sperm was noticed in group II (PM% 64.2±15.4) compared with control (PM% 36.8±5.5). The supplementation of 400 IU/mL CAT (group VI) revealed significant (P<0.01) reduction of apoptotic-like changes (YO-PRO-1+/PI−: 13.1±7.5%, AnV+/PI−: 9.9±4.1%) in frozen-thawed spermatozoa compared with extender supplemented with 200 IU/mL CAT (group V). Irrespective of the concentration used, SOD and CAT in combination (group VII and group VIII) significantly (P<0.01) improved post-thaw sperm survival compared with the control. Evaluation by TUNEL assay revealed that cryopreservation and thawing did not induce DNA fragmentation in boar spermatozoa.
Characteristic and susceptibility to enterocins of enterococci in pheasants possessing virulence factor genes
Authors: Kandričáková A. , Lauková A. , Strompfová V. 
Published: November 2015

AbstractWith an increasing number of pheasants as gamebirds being reared each year, these species are becoming a more prominent part of the workload of many veterinary practices. Only limited information can be found concerning the microflora of common pheasants. A significant part of the obligate microflora consists of lactic acid bacteria, including enterococci. In this study, faeces were sampled from 60 pheasants aged 16-17 weeks. Enterococcal counts reached 5.48±1.9 (log10) CFU/g. Strains (17) were taxonomically classified to the genus Enterococcus using the Maldi-Tof identification system; they were allotted to the speciesE. hirae(58.8%),E. faecium(23.5%) andE. faecalis(17.7%) by highly probable species identification or by secure genus identification/probable species identication. Species allocation was also confirmed using conventional biochemical tests. Most strains formed β-hemolysis. Gelatinase active phenotype was found in threeE. faecalisstrains. Enterococci were β-glucuronidase negative, mostly trypsin negative with slight or moderate production of α-chymotrypsin. EH52b and EF42 strains possessed the highest potential for pathogenicity. Average value of lactic acid was 1.78±0.33 mmo/L. Most strains were tetracycline resistant (82.4%). PolyresistantE. faecalisstrains with positive gelatinase phenotype and possessing virulence factor genes confirmed using PCR (gelE, efaAfs,ccf cob, cpd) were sensitive to enterocins (activity 1600-25 600 AU/mL).
Effect of low-energy laser irradiation and antioxidant supplementation on cell apoptosis during skeletal muscle post-injury regeneration in pigs
Authors: Otrocka-Domagała I. , Mikołajczyk A. , Paździor-Czapula K. , Gesek M. , Rotkiewicz T. , Mikiewicz M. 
Published: November 2015

AbstractThe aim of this study was to evaluate the effect of low-energy laser irradiation, coenzyme Q10 and vitamin E supplementation on the apoptosis of macrophages and muscle precursor cells during skeletal muscle regeneration after bupivacaine-induced injury. The experiment was conducted on 75 gilts, divided into 5 experimental groups: I – control, II – low-energy laser irradiation, III – coenzyme Q10, IV – coenzyme Q10 and vitamin E, V – vitamin E. Muscle necrosis was induced by injection of 0.5% bupivacaine hydrochloride. The animals were euthanized on subsequent days after injury. Samples were formalin fixed and processed routinely for histopathology. Apoptosis was detected using the TUNEL method. The obtained results indicate that low-energy laser irradiation has a beneficial effect on macrophages and muscle precursor cell activity during muscle post-injury regeneration and protects these cells against apoptosis. Vitamin E has a slightly lower protective effect, limited mainly to the macrophages. Coenzyme Q10 co-supplemented with vitamin E increases the activity of macrophages and muscle precursor cells, myotube and young muscle formation. Importantly, muscle precursor cells seem to be more sensitive to apoptosis than macrophages in the environment of regenerating damaged muscle.
Differentially expressed proteins in the blood serum of piglets in response to a diet supplemented with inulin
Authors: Herosimczyk A. , Lepczyński A. , Ożgo M. , Skomiał J. , Dratwa-Chałupnik A. , Tuśnio A. , Taciak M. , Barszcz M. 
Published: November 2015

AbstractIn the present study we introduced a two-dimensional electrophoresis and matrix-assisted laser desorption/ionisation time of flight mass spectrometry-based proteomic workflow to identify proteins that show altered expression as a result of the addition of 2% of water extract of inulin-type fructans to the diet of growing piglets. This analysis allowed us to detect an average of 240 spots per gel with a mass range from 10 to 250 kDa and a pH ranging from 3 to 10. Twenty protein spots were found to show statistically significant differences in their expression. Of these, 7 protein spots were up-regulated, whereas 13 showed down-regulation in response to the experimental diet. In total, 13 spots were identified, representing 8 distinct gene products. The experimental diet caused a significant change in proteins directly or indirectly involved in hemostasis and the innate immune response. Increased levels of fibrinogen along with decreased plasminogen expression may indicate that a fructan-rich diet favours the deposits of fibrin and promotes blood clotting. We also found increased expression of vitronectin and the alpha subunit of the complement component C8 which may protect the host organism against excessive cytolitic activity of the activated complement. The piglets from the experimental group had slightly increased values of IgG and IgA, whereas the IgM level tended to be decreased. The fructan-rich diet did not have any influence on plasma total cholesterol, HDL and LDL cholesterol and triglyceride levels.
Genetic characterization of coagulase-positive staphylococci isolated from healthy pigeons
Authors: Kizerwetter-Świda M. , Chrobak-Chmiel D. , Rzewuska M. , Antosiewicz A. , Dolka B. , Ledwoń A. , Czujkowska A. , Binek M. 
Published: November 2015

AbstractCoagulase-positive staphylococci (CoPS) are opportunistic veterinary pathogens, of whichStaphylococcus aureus,S. delphiniandS. intermediuscan be isolated from pigeons. The biochemical identification ofS. delphiniandS. intermediusisolates may be incorrect, because of their phenotypic similarity. The purpose of the present study was to isolate and identify CoPS from domestic and feral pigeons and to determine their genetic relatedness by PFGE. A total number of 31 isolates of CoPS were obtained, 15 were identified asS. delphinigroup B, six asS. aureus,four asS. delphinigroup A, three asS. intermediusand three asS. schleiferisubsp.coagulans. The results indicate that S.delphinigroup B is the predominant CoPS species among pigeons studied. PFGE restriction patterns ofS. delphinigroup A andS. delphinigroup B form separate clusters, demonstrating their genetic heterogeneity. Indistinguishable or very similar PFGE patterns observed amongS. delphinigroup B isolates from domestic and feral pigeons confirm the possibility of CoPS transmission between these birds.
Expression of Cyclooxygenase-2 in naturally occurring bovine cutaneous fibropapillomas
Authors: Bocaneti F. , Altamura G. , Corteggio A. , Solcan C. , Velescu E. , Borzacchiello G. 
Published: November 2015

Abstract
Bovine cutaneous fibropapillomas are benign skin tumours characterized by epithelial and dermal proliferation and induced by Bovine papillomaviruses (BPVs). Cyclooxygenase (COX) 1 and 2 are enzymes involved in pathological conditions, such as inflammation and epithelial carcinogenesis. Here we investigated biochemically and immunohistochemically COX-2 expression in bovine cutaneous fibropapillomas. Eight of twelve fibropapillomas (67%) showed COX-2 positive immunosignal mostly in the cytoplasm of the basal cell layer, while the normal skin did not stain. Biochemical analysis confirmed the expression of COX-2 in tumour samples. This study shows COX-2 expression in cutaneous fibropapillomas, suggesting a contribution in epithelial tumour development.
Epidemiological situation of turkey coryza (bordetellosis) in Poland
Authors: Śmiałek M. , Tykałowski B. , Pestka D. , Stenzel T. , Koncicki A. 
Published: November 2015

Abstract
The present study investigated the prevalence of Bordetella avium (BA) infections in turkey flocks of different production type in Poland, based on serological examination of blood samples collected between 2012 and 2014. The results of our study indicate that BA infections are very common in turkey flocks, they are possible during the whole production cycle and that probability of the past infection increases with age. This situation is causing high level of specific anti-BA maternally derived antibody transfer to hatching poults.
Work Attitudes and Work Ethic as Predictors of Work Engagement among Polish Employees
Authors: Czerw Agnieszka , Grabowski Damian 
Published: November 2015

Abstract
The purpose of this study was to investigate the relationship between work engagement and the psychological traits of employees, such as attitudes towards work and work ethic. Additionally, the study included demographic characteristics of employees and organizational characteristics. Research was conducted using the Polish adaptations of two well known methods: Multidimensional Work Ethic Profile and Utrecht Work Enagagement Scale, as well as the Work Attitude Questionnaire (WAQ) - a new Polish method. 360 adult employees of two large Polish regions took part in the study. The analysis showed a significant influence of hedonic-autotelic attitude, as well as four dimensions of work ethic on work engagement. It seems to be an important conclusion that work engagement turned out to be far more determined by the subject’s psychological traits than demographic and organizational ones. These results, indicating the special role of the perception of work as a central value, can be used only in the area of attitudes towards work formed during adolescence (e.g., at school, in career counseling) but also in the area of motivating the employees by the organization.
Are Compassionate and Self-Image Goals Comparable across Cultures?
Authors: Kuncewicz Dariusz , Niiya Yu , Crocker Jennifer 
Published: November 2015

Abstract
This study tested whether compassionate goals to support others and self-image goals to maintain and defend desired self-images: 1) are equivalent constructs across three cultures (U.S., Japan, Poland); 2) overlap with interdependent self-construal; and 3) predict relationships and growth measures similarly in each country. We re-analyzed data from American (n = 130) and Japanese (n = 203) students, reported in Niiya et al. (2013), along with new data from Poland (n = 246). Single and multiple group confirmatory analyses showed that the two-factor structure holds across the three cultures. Interdependence correlated with compassionate and self-image goals only in Japan. In all three samples, compassionate goals correlated with non-zero-sum belief, feeling close, growth-seeking, self-compassion, and learning from failures, whereas self-image goals correlated with defensive responses to conflicts and validation-seeking. Our results suggest that compassionate and self-image goals may serve similar functions in relationships and growth across cultures.
Agentic Thinking About Others Makes Them Closer
Authors: Piotrowski Jaroslaw , Wojciszke Bogdan 
Published: November 2015

Abstract
A substantial amount of research showed that agency (concerning goal attainment) and communion (concerning relationships maintenance) are two basic dimensions of content in social cognition. Based on the well-supported idea that people typically think about themselves and close others in agentic rather than communal terms, we tested the hypothesis that agentic (but not communal) thinking about unknown others makes them subjectively closer. This hypothesis was confirmed in four experiments differently priming agentic versus communal thinking on others. As predicted, increases in closeness resulting from the agentic thinking about others were constrained to cognitive load conditions where participants were occupied with a parallel task. We conclude that the agentic content of thoughts about others serves as an intuitive, heuristic cue of their psychological closeness.