2,311 research outputs found
Playing Muller Games in a Hurry
This work studies the following question: can plays in a Muller game be
stopped after a finite number of moves and a winner be declared. A criterion to
do this is sound if Player 0 wins an infinite-duration Muller game if and only
if she wins the finite-duration version. A sound criterion is presented that
stops a play after at most 3^n moves, where n is the size of the arena. This
improves the bound (n!+1)^n obtained by McNaughton and the bound n!+1 derived
from a reduction to parity games
Versuch einer Geschichte der lettischen Literatur : Mit dem Bildnisz G. F. Stenders
https://www.ester.ee/record=b4012687*es
Nachrichten über den Zustand der Unterrichtsanstalten des Goldingenschen Schulkreises
https://www.ester.ee/record=b4005404*es
Post-delivery oxidative stress in women with preeclampsia or IUGR
Aim: To compare oxidative stress in patients with preeclampsia (PE) or intrauterine growth restriction (IUGR) vs. normal pregnancy (controls) during 48h after delivery. Study design: Women with singleton pregnancies were recruited immediately after delivery (gestational age >26.0weeks). Women with PE or IUGR were matched with healthy controls by age, BMI, gestational age and delivery mode. Venous blood samples and urine samples were tested for oxidative stress products 24h and 48h after delivery. Results: Plasma malondialdehyde (MDA) concentration 24h after delivery was significantly higher in subjects with PE or IUGR (3.41±1.14μmol/L, n=20) than in controls (2.91±0.82μmol/L, n=38) (P=0.04). Urine iPF2α-VI declined from 24 to 48h after delivery significantly in controls (P=0.006) and not in subjects with PE or IUGR (P=0.71). Conclusion: Of the markers tested only MDA is indicating higher oxidative stress in women with PE/IUGR than in normal pregnancy and only at 24h after delivery. No consistent pattern of change in the oxidative stress markers exists between 24-48h after deliver
Scintillation light produced by low-energy beams of highly-charged ions
Measurements have been performed of scintillation light intensities emitted
from various inorganic scintillators irradiated with low-energy beams of
highly-charged ions from an electron beam ion source (EBIS) and an electron
cyclotron resonance ion source (ECRIS). Beams of xenon ions Xe with
various charge states between =2 and =18 have been used at energies
between 5 keV and 17.5 keV per charge generated by the ECRIS. The intensity of
the beam was typically varied between 1 and 100 nA. Beams of highly charged
residual gas ions have been produced by the EBIS at 4.5 keV per charge and with
low intensities down to 100 pA. The scintillator materials used are flat
screens of P46 YAG and P43 phosphor. In all cases, scintillation light emitted
from the screen surface was detected by a CCD camera. The scintillation light
intensity has been found to depend linearly on the kinetic ion energy per time
deposited into the scintillator, while up to =18 no significant contribution
from the ions' potential energy was found. We discuss the results on the
background of a possible use as beam diagnostics e.g. for the new HITRAP
facility at GSI, Germany.Comment: 6 pages, 8 figure
Dimensionen politischer Konflikte: die Analyse von namentlichen Abstimmungen in Parlamenten mit dem Verfahren der Mokken-Skalierung
In dem Aufsatz stellen die Autoren ein probalistisches Skalierungsmodell ("Mokken-Skalierung") vor, mit dem sie das Abstimmungsverhalten der Abgeordneten und daran anknüpfend die Konfliktstrukturen der Frankfurter Nationalversammlung und der französischen Assemble Nationale Constituante analysieren. Im Zentrum der methodologischen Überlegungen steht dabei die oft schwierige "Übersetzung" von theoretischen Begriffen (wie Industrialisierung, legitime Herrschaft, Klassenbewußtsein) in empirische Indikatoren. Bestimmte Aspekte dieser in der Forschungspraxis oft nur intuitiv geleisteten Zuordnung werden durch die verschiedenen Skalierungsverfahren objektivierbar. Dabei haben sich - wie auch in der Kausalanalyse - deterministische Modelle (wie die Guttmann-Skalierung), die "Fehler" in den Beobachtungsgrößen oder Variablenbeziehungen nicht explizit berücksichtigen, in vielen Anwendungssituationen als zu restriktiv erwiesen. (pmb
- …