194 research outputs found
The Importance and Role of Trust in Agricultural Co-operation â Some Empirical Experiences from Hungary
This paper examines the relations of trust in agricultural cooperation from two aspects. On the one hand, it gives a short review of relevant literature, with special regard to agri-food economy. On the other hand, it uses the results of empirical survey for the analysis of trust in machinery sharing arrangements of Hungarian agricultural producers. In connection with this, the trust is examined in two dimensions: contractual and competence trust. Our results prove that there is a positive correlation between the level of trust and the farmersâ activity in cooperative agreements. It could also be proved that the trust need is very different in the different fields of cooperation. It is a tendency that the contractual trust is more important in more intensive, higher-dependence cooperation activities, while competence trust becomes into the foreground in the more extensive solutions.Agribusiness,
Is there a link between the volume of physical exercise and emotional intelligence (EQ)?
Emotional intelligence (EQ) was linked to sport participation. We report two studies in which we tested the link between exercise volume, defined as weekly hours of exercise, and EQ. Volunteers (n = 64 and n = 84) completed the Wong and Law Emotional Intelligence Scale. In Study I, significant correlations between exercise volume and use- and regulation-of-emotions prompted us to use a posteriori grouping into high- and low exercise-volume groups. The former exhibited better use-of-emotions than the latter (p = .007, d = .87). In Study II, using a priori grouping, we replicated the finding from Study I (p = .001, d = .78), and the groups also differed in âself-emotions appraisalâ (p = .05, d = .44) and total EQ (p = .017, d = .54). Since the items measuring the use-of-emotions involve motivational aspects of the EQ, we posit that this dimension is ânaturallyâ linked to exercise volume. Our findings also suggest that self-emotions appraisal
and the overall EQ are linked to greater volumes of exercise. These results should provide an incentive for longitudinal studies in this area
Passion and exercise addiction: Healthier profiles in team than in individual sports
New evidence suggests that passion is linked to exercise addiction. The objective of this work was to determine the strength of the relationship between exercise addiction, obsessive passion, and harmonious passion in team versus individual sports. Athletes (nâ=â190) from three team and three individual sports were examined. Results of hierarchical multiple regressions revealed that obsessive passion and harmonious passion were significant (pâ<â.001) predictors (R2â=â.39) of exercise addiction. Obsessive passion accounted for 25% and 50% of the variance in team and individual sports, respectively. Harmonious passion added little to the shared variance (3â4%). The levels of risk for exercise addiction were identical (15%) in the two groups. In team sports, harmonious passion was higher than in individual sports (pâ<â.001). The current results suggest that profiles of passion in team sports are superior to those in individual sports, while the risk for exercise addiction is similar
Comparison of tracking algorithms implemented in OpenCV
Computer vision is very progressive and modern part of computer science. From scientific point of view, theoretical aspects of computer vision algorithms prevail in many papers and publications. The underlying theory is really important, but on the other hand, the final implementation of an algorithm significantly affects its performance and robustness. For this reason, this paper tries to compare real implementation of tracking algorithms (one part of computer vision problem), which can be found in the very popular library OpenCV. Moreover, the possibilities of optimizations are discussed.Technology Agency of the Czech Republic (TA CR) within the Visual Computing Competence Center - V3C project [TE01020415]; Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Programme [LO1303 (MSMT-7778/2014)]; European Regional Development Fund under the project CEBIA-Tech [CZ.1.05/2.1.00/03.0089]; Internal Grant Agency at TBU in Zlin [IGA/FAI/2016/036
Experimental energy levels and partition function of the C molecule
The carbon dimer, the C molecule, is ubiquitous in astronomical
environments. Experimental-quality rovibronic energy levels are reported for
C, based on rovibronic transitions measured for and among its
singlet, triplet, and quintet electronic states, reported in 42 publications.
The determination utilizes the Measured Active Rotational-Vibrational Energy
Levels (MARVEL) technique. The 23,343 transitions measured experimentally and
validated within this study determine 5,699 rovibronic energy levels, 1,325,
4,309, and 65 levels for the singlet, triplet, and quintet states investigated,
respectively. The MARVEL analysis provides rovibronic energies for six singlet,
six triplet, and two quintet electronic states. For example, the lowest
measurable energy level of the \astate\ state, corresponding to the total
angular momentum quantum number and the spin-multiplet component, is
603.817(5) \cm. This well-determined energy difference should facilitate
observations of singlet--triplet intercombination lines which are thought to
occur in the interstellar medium and comets. The large number of highly
accurate and clearly labeled transitions that can be derived by combining
MARVEL energy levels with computed temperature-dependent intensities should
help a number of astrophysical observations as well as corresponding laboratory
measurements. The experimental rovibronic energy levels, augmented, where
needed, with {\it ab initio} variational ones based on empirically adjusted and
spin-orbit coupled potential energy curves obtained using the \Duo\ code, are
used to obtain a highly accurate partition function, and related thermodynamic
data, for C up to 4,000 K.Comment: ApJ Supplements (in press), 48 page
In vitro susceptibility of Staphylococcus aureus strains isolated from cows with subclinical mastitis to different antimicrobial agents
Sensitivity to commercial teat dips (nonoxinol-9 iodine complex and
chlorhexidine digluconate) of 56 Staphylococcus (S.) aureus strains isolated
from quarter milk samples of various German dairy herds treated with different
teat dipping schemes was investigated in this study. The minimum inhibitory
concentration was determined using a broth macrodilution method according to
the German Veterinary Association guidelines. The main objective of the
current study was to induce in vitro resistance induction of S. aureus to
chemical disinfectants. Ten different strains were repeatedly passed ten times
in growth media with sub-lethal concentrations of disinfectants. Nine strains
showed a significant reduction in susceptibility to the nonoxinol-9 iodine
complex but only one strain developed resistance to chlorhexidine digluconate.
Stability of the acquired resistance was observed in all S. aureus strains
adapted to the nonoxinol-9 iodine complex and chlorhexidine digluconate. In
contrast, simultaneous resistance to different antibiotics was not observed in
any of the ten investigated S. aureus strains. However, the isolates exhibited
a high degree of resistance to penicillin G. Based on these results,
resistance of S. aureus to chemical disinfectants may be more likely to
develop if the chemicals are used at concentrations lower than that required
for an optimal biocidal effect
Detection of VIM-1-producing Enterobacter cloacae and Salmonella enterica Serovars Infantis and Goldcoast at a breeding pig farm in Germany in 2017 and their molecular relationship to former VIM-1-producing S. Infantis Isolates in German livestock production
In 2011, VIM-1-producing Salmonella enterica serovar Infantis and Escherichia coli were isolated for the first time in four German livestock farms. In 2015/2016, highly related isolates were identified in German pig production. This raised the issue of potential reservoirs for these isolates, the relation of their mobile genetic elements, and potential links between the different affected farms/facilities. In a piglet-producing farm suspicious for being linked to some blaVIM-1 findings in Germany, fecal and environmental samples were examined for the presence of carbapenemase-producing Enterobacteriaceae and Salmonella spp. Newly discovered isolates were subjected to Illumina whole-genome sequencing (WGS) and S1 pulsed-field gel electrophoresis (PFGE) hybridization experiments. WGS data of these isolates were compared with those for the previously isolated VIM-1-producing Salmonella Infantis isolates from pigs and poultry. Among 103 samples, one Salmonella Goldcoast isolate, one Salmonella Infantis isolate, and one Enterobacter cloacae isolate carrying the blaVIM-1 gene were detected. Comparative WGS analysis revealed that the blaVIM-1 gene was part of a particular Tn21-like transposable element in all isolates. It was located on IncHI2 (ST1) plasmids of âŒ290 to 300âkb with a backbone highly similar (98 to 100%) to that of reference pSE15-SA01028. SNP analysis revealed a close relationship of all VIM-1-positive S. Infantis isolates described since 2011. The findings of this study demonstrate that the occurrence of the blaVIM-1 gene in German livestock is restricted neither to a certain bacterial species nor to a certain Salmonella serovar but is linked to a particular Tn21-like transposable element located on transferable pSE15-SA01028-like IncHI2 (ST1) plasmids, being present in all of the investigated isolates from 2011 to 2017.
IMPORTANCE: Carbapenems are considered one of few remaining treatment options against multidrug-resistant Gram-negative pathogens in human clinical settings. The occurrence of carbapenemase-producing Enterobacteriaceae in livestock and food is a major public health concern. Particularly the occurrence of VIM-1-producing Salmonella Infantis in livestock farms is worrisome, as this zoonotic pathogen is one of the main causes for human salmonellosis in Europe. Investigations on the epidemiology of those carbapenemase-producing isolates and associated mobile genetic elements through an in-depth molecular characterization are indispensable to understand the transmission of carbapenemase-producing Enterobacteriaceae along the food chain and between different populations to develop strategies to prevent their further spread
Mimush Sheep and the Spectre of Inbreeding : Historical Background for Festetics's Organic and Genetic Laws Four Decades Before Mendel's Experiments in Peas
The upheavals of late eighteenth century Europe encouraged people to demand greater liberties, including the freedom to explore the natural world, individually or as part of investigative associations. The Moravian Agricultural and Natural Science Society, organized by Christian Carl Andre, was one such group of keen practitioners of theoretical and applied scientific disciplines. Headquartered in the "Moravian Manchester" Brunn (nowadays Brno), the centre of the textile industry, society members debated the improvement of sheep wool to fulfil the needs of the Habsburg armies fighting in the Napoleonic Wars. Wool, as the raw material of soldiers' clothing, could influence the war's outcome. During the early nineteenth century, wool united politics, economics, and science in Brno, where breeders and natural scientists investigated the possibilities of increasing wool production. They regularly discussed how "climate" or "seed" characteristics influenced wool quality and quantity. Breeders and academics put their knowledge into immediate practice to create sheep with better wool traits through consanguineous matching of animals and artificial selection. This apparent disregard for the incest taboo, however, was viewed as violating natural laws and cultural norms. The debate intensified between 1817 and 1820, when a Hungarian veteran soldier, sheep breeder, and self-taught natural scientist, Imre (Emmerich) Festetics, displayed his inbred Mimush sheep, which yielded wool extremely well suited for the fabrication of light but strong garments. Members of the Society questioned whether such "bastard sheep" would be prone to climatic degeneration, should be regarded as freaks of nature, or could be explained by natural laws. The exploration of inbreeding in sheep began to be distilled into hereditary principles that culminated in 1819 with Festetics's "laws of organic functions" and "genetic laws of nature," four decades before Gregor Johann Mendel's seminal work on heredity in peas.Peer reviewe
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