Results 261 to 270 of about 5,618,028 (304)

Semiparametric transition rate models

2019
The most widely applied semiparametric model is the proportional hazards model proposed by D. R. Cox, or, as stated in the literature, the Cox model. The Cox model has been used widely, although the proportionality assumption restricts its range of possible empirical applications. This chapter explains the partial likelihood estimation of the model. It
Hans-Peter Blossfeld, Götz Rohwer, Gwendolin J. Blossfeld, Brendan Halpin   +3 more
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Transition rates in 192Au

Nuclear Physics A, 1971
From data obtained with a double-lens electron coincidence spectrometer and iron-yoke double-focusing spectrometers, the half-life of the 31.6 keV level in 192Au has been determined to be 0.69 ± 0.02 nsec, and the de-exciting transition has been found to have a multipolarity of M1 + (0.66 ± 0.05)% E2. The E2 part of this transition is strongly enhanced,
Å. Höglund, S.G. Malmskog, A. Bäcklin, B. Fogelberg, B. Jonson   +4 more
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Transition rates in97Tc

Nuclear Physics A, 1974
Abstract The de-excitation of the 215 keV 7 2 + and 324 keV 5 2 + levels in 97 Tc, as observed in 97 Ru decay, was studied by means of internal conversion electron spectroscopy and the delayed electron-electron coincidence technique.
C. Bergman, B. Svahn, L.-G. Svensson, A. Bäcklin, J. Lindskog   +4 more
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Transition rates in 89Zr

Nuclear Physics A, 1972
Abstract The lifetimes of a number of levels in 89 Zr have been measured with the Doppler-shift attenuation method using the 89 Y(p, nγ) 89 Zr reaction and observing the γ-rays in a Ge(Li) detector. The results are: τ (1628) = 370 ± 50fs, τ (1743) = 710 ± 180 fs, τ (1835) = 460 ± 190 fs, τ (2100) = 180 ± 60 fs, τ (2298) = 105 ± 30 fs, τ (2388)
R.D. Gill, J.M.G. Caraça, A.J. Cox, H.J. Rose   +3 more
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Rating Transition and Default Rates Conditioned on Outlooks

The Journal of Fixed Income, 2004
Recently downgraded corporate bond issuers have different transition and default risks from recently upgraded issuers with the same ratings. Rating transition and default rates are found to be sensitive to both rating history and outlook and rate review status, when viewed in isolation.
David T. Hamilton, Richard Cantor
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From transition paths to transition states and rate coefficients

The Journal of Chemical Physics, 2004
Transition states are defined as points in configuration space with the highest probability that trajectories passing through them are reactive (i.e., form transition paths between reactants and products). In the high-friction (diffusive) limit of Langevin dynamics, the resulting ensemble of transition states is shown to coincide with the separatrix ...
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The real exchange rate in transition economies [PDF]

, 1997
Real exchange rates appear to present a specific behaviour in the early phase of transition: they are largely unaffected by nominal exchange rate movements and exibit trend appreciation. The model presented here describes the transition process as the emergence of two new (traded and non-traded good) sectors and the decline of an inefficient and ...
C Grafe, C Wyplosz
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Exchange rate in transition [PDF]

, 1998
In this book several econometrics techniques are used to perform quantitative research of the exchange rate in transition. This is an empirical work based on related economic theory. While the stress is put on the exchange rate of the Czech koruna, the subject is analyzed from a broader perspective of other transition countries as well.
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Transition Rate

2021
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Implementation in action: Collaborating on the transition to primary HPV screening for cervical cancer in the United States

Ca-A Cancer Journal for Clinicians, 2023
Ritu Nayar, Jane Gerndt, Levi S Downs
exaly