Results 101 to 110 of about 490,730 (291)

Sm Transition Probabilities and Abundances

open access: yes, 2005
119 pages, 13 figures, 5 tables; To appear in the Astrophysical Journal ...
Hartog, E. A. Den   +3 more
openaire   +3 more sources

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

The ENSO Transition Probabilities

open access: yesJournal of Climate, 2017
ENSO is investigated here by considering it as a transition from different states. Transition probability matrices can be defined to describe the evolution of ENSO in this way. Sea surface temperature anomalies are classified into four categories, or states, and the probability to move from one state to another has been calculated for both ...
Conti G, Navarra A, Tribbia J
openaire   +2 more sources

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown   +6 more
wiley   +1 more source

Atomic Transition Probabilities for Ultraviolet and Optical Lines of Tm ii

open access: yesThe Astrophysical Journal Supplement Series
We report new branching fraction measurements for 224 ultraviolet and optical transitions of Tm ii . These transitions range in wavelength (wavenumber) from 2350 to 6417 Å (42,532–15,579 cm ^−1 ) and originate in 13 odd-parity and 24 even-parity upper ...
E. A. Den Hartog   +2 more
doaj   +1 more source

Transition Probabilities, Oscillator and Line Strengths in Sc XIX

open access: yesEast European Journal of Physics
Scandium XIX ion is a member of the isoelectronic sequence of Li-like ions. Numerical coulomb approximation and quantum defect theory have been used to calculate energies, quantum defects & transition probabilities, oscillator, and line strengths of Sc ...
Zaheer Uddin   +3 more
doaj   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen   +7 more
wiley   +1 more source

Atomic Transition Probabilities for UV and Optical Lines of Gd ii

open access: yesThe Astrophysical Journal Supplement Series
We report new branching fraction (BF) measurements for 156 ultraviolet and optical transitions of Gd ii . These transitions range in wavelength (wavenumber) from 2574 to 6766 Å (38,838–14,777 cm ^−1 ) and originate in one odd-parity and 11 even-parity ...
G. T. Voith   +2 more
doaj   +1 more source

Using Hidden Markov Chains in Recognition of Vowel Letters in English Language [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2006
This study deals with hidden Markov models . These models consist of sets of finite states , each one of them is associated with a probability distribution .
doaj   +1 more source

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