24 research outputs found
Characterization of Streptococcus pneumoniae isolates from Austrian companion animals and horses
Background: The aim of the present study was to investigate the genetic
relatedness and the antimicrobial resistance profiles of a collection of
Austrian Streptococcus pneumoniae isolates from companion animals and horses.
A total of 12 non-repetitive isolates presumptively identified as S.
pneumoniae were obtained during routinely diagnostic activities between March
2009 and January 2017. Results: Isolates were confirmed as S. pneumoniae by
bile solubility and optochin susceptibility testing, matrix-assisted laser
desorption-ionization-time of flight (MALDI-TOF) mass spectrometry and
sequence analysis of a part recA and the 16S rRNA genes. Isolates were further
characterized by pneumolysin polymerase chain reaction (PCR) and genotyped by
multilocus sequence typing (MLST). Antimicrobial susceptibility testing was
performed and resistance genes were detected by specific PCR assays. All
isolates were serotyped. Four sequence types (ST) (ST36, ST3546, ST6934 and
ST6937) and four serotypes (3, 19A, 19F and 23F) were detected. Two isolates
from twelve displayed a multidrug-resistance pheno- and genotype. Conclusions:
This study represents the first comprehensive investigation on characteristics
of S. pneumoniae isolates recovered from Austrian companion animals and
horses. The obtained results indicate that common human sero- (23F) and
sequence type (ST36) implicated in causing invasive pneumococcal disease (IPD)
may circulate in dogs. Isolates obtained from other examined animals seem to
be host-adapted
Mathematical Properties of a New Levin-Type Sequence Transformation Introduced by \v{C}\'{\i}\v{z}ek, Zamastil, and Sk\'{a}la. I. Algebraic Theory
\v{C}\'{\i}\v{z}ek, Zamastil, and Sk\'{a}la [J. Math. Phys. \textbf{44}, 962
- 968 (2003)] introduced in connection with the summation of the divergent
perturbation expansion of the hydrogen atom in an external magnetic field a new
sequence transformation which uses as input data not only the elements of a
sequence of partial sums, but also explicit estimates
for the truncation errors. The explicit
incorporation of the information contained in the truncation error estimates
makes this and related transformations potentially much more powerful than for
instance Pad\'{e} approximants. Special cases of the new transformation are
sequence transformations introduced by Levin [Int. J. Comput. Math. B
\textbf{3}, 371 - 388 (1973)] and Weniger [Comput. Phys. Rep. \textbf{10}, 189
- 371 (1989), Sections 7 -9; Numer. Algor. \textbf{3}, 477 - 486 (1992)] and
also a variant of Richardson extrapolation [Phil. Trans. Roy. Soc. London A
\textbf{226}, 299 - 349 (1927)]. The algebraic theory of these transformations
- explicit expressions, recurrence formulas, explicit expressions in the case
of special remainder estimates, and asymptotic order estimates satisfied by
rational approximants to power series - is formulated in terms of hitherto
unknown mathematical properties of the new transformation introduced by
\v{C}\'{\i}\v{z}ek, Zamastil, and Sk\'{a}la. This leads to a considerable
formal simplification and unification.Comment: 41 + ii pages, LaTeX2e, 0 figures. Submitted to Journal of
Mathematical Physic
A universal modular autonomous robot architecture
We present a universal modular robot architecture. A robot consists of the following intelligent modules: central control unit (CCU), drive, actuators, a vision unit and sensor input unit. Software and hardware of the robot fit into this structure. We define generic interface protocols between these units. If the robot has to solve a new application and is equipped with a different drive, new actuators and different sensors, only the program for the new application has to be loaded into the CCU. The interfaces to the drive, the vision unit and the other sensors are plug-and-play interfaces. The only constraint for the CCU-program is the set of commands for the actuators
A UNIVERSAL MODULAR AUTONOMOUS ROBOT ARCHITECTURE
Abstract: We present a universal modular robot architecture. A robot consists of the following intelligent modules: central control unit (CCU), drive, actuators, a vision unit and sensor input unit. Software and hardware of the robot fit into this structure. We define generic interface protocols between these units. If the robot has to solve a new application and is equipped with a different drive, new actuators and different sensors, only the program for the new application has to be loaded into the CCU. The interfaces to the drive, the vision unit and the other sensors are plug-and-play interfaces. The only constraint for the CCU-program is the set of commands for the actuators.
Spitze ohne Basis? Soziologische Reflexionen zur Nachwuchsrekrutierung im Spitzensport
Cachay K. Spitze ohne Basis? Soziologische Reflexionen zur Nachwuchsrekrutierung im Spitzensport. In: Fessler N, Scheid V, Trosien G, Simen J, Bückel F, eds. Gemeinsam etwas bewegen! Sportverein und Schule - Schule und Sportverein in Kooperation ; Dokumentation der Fachtagung. Reihe Sport. Vol 11. Schorndorf: Hofmann; 1999: 88-95