نتایج جستجو برای: نتایج ppr

تعداد نتایج: 354838  

Journal: :Seizure 1998
K. Topalkara G. Alarcón C. D. Binnie

The protocol used for intermittent photic stimulation (IPS) may determine the likelihood of evoking a photoparoxysmal response (PPR). One-hundred and thirty-five electroencephalograms (EEGs) presenting PPRs, from 125 patients were studied in order to identify the most effective stimulation frequency to evoke a PPR and the effects of repetition of IPS on the occurrence of a PPR. Two stimulation ...

2017
Ping Zhang Fang Wang Yao Cheng Liu yi Zhang Bei zhu Ye Hong wei Jiang Yi Sun Xi Zhu Yuan Liang

OBJECTIVES To provide an empirical examination of patient-provider relationships (PPR) and its association with organizational and individual factors. METHODS A national cross-sectional survey was conducted by stratified cluster sampling in 77 hospitals across seven provinces in China between July 2014 and April 2015, involving 3621 doctors, 5561 nurses, and 8022 patients with response rates ...

2014
Soufien Sghaier Gian Mario Cosseddu Sonia Ben Hassen Salah Hammami Héni Haj Ammar Antonio Petrini Federica Monaco

infection of specific-pathogen-free pigs by a genotype 4 strain of human hepatitis E virus. To the Editor: Peste des petits ruminants (PPR) is a viral disease of sheep and goats caused by peste des petits ruminants virus (PPRV), a negative-sense, single-stranded RNA virus of the genus Morbilli-virus. Illness and death can be high (>90%) when PPR occurs in populations of immunologically naive sh...

Journal: :SIAM J. Numerical Analysis 2007
Haijun Wu Zhimin Zhang

~ We study. adaptive finite element methods for elliptic problems with domain corner singularities. Our model problem is the two dimensional Poisson equation. Results of this paper are two folds. First, we prove that there exists an adaptive mesh (gauged by a discrete mesh density function) under which the recovered.gradient by the Polynomial Preserving Recovery (PPR) is superconvergent. Second...

2012
Johannes Paefgen Alexander C. H. Skorna Thorsten Staake Elgar Fleisch

In der Versicherungswirtschaft ermöglichen ubiquitäre Informationssysteme neuartige Prämienmodelle nach dem "Pay-Per-Risk" (PPR) Prinzip. In PPR Tarifen sind Prämien nicht vertraglich fixiert, sondern in gewissen Grenzen variabel und werden basierend auf objektiven Sensorinformationen in regelmäßigen Intervallen neu bestimmt. Für zwei Fallbeispiele aus dem Sachversicherungsbereich werden Anford...

Journal: :Arquivos de neuro-psiquiatria 1990
M Muszkat R M Guimarães A B da Silva C J de Campos

Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases. The rest recordings were abnormal in 41.8% with prevalence of generalized paroxysm. Eight patterns of PPR were observed, being polyspike mixed to slow wave the most frequent (53%). The epileptic group showed a bimodal dist...

Journal: :IEEE transactions on neural networks 1996
Ying Zhao Christopher G. Atkeson

This paper examines the implementation of projection pursuit regression (PPR) in the context of machine learning and neural networks. We propose a parametric PPR with direct training which achieves improved training speed and accuracy when compared with nonparametric PPR. Analysis and simulations are done for heuristics to choose good initial projection directions. A comparison of a projection ...

2009
A. B. ZAHUR

Epidemiological and virological investigations were carried out during an outbreak of Peste des petits ruminants (PPR) in Afghan (Bulkhi) sheep in Pakistan. The overall morbidity, mortality and case fatality rates were 41.0, 1.2 and 3.0%, respectively. The epidemic curve was plotted and the values for basic reproductive number (R0) and herd immunity threshold (HIT) for the affected flock were e...

2008
Norbert I. Goldfield Elizabeth C. McCullough John S. Hughes Ana M. Tang Beth Eastman Lisa K. Rawlins Richard F. Averill

The potentially preventable readmission (PPR) method uses administrative data to identify hospital readmissions that may indicate problems with quality of care. The PPR logic determines whether the reason for readmission is clinically related to a prior admission, and therefore potentially preventable. The likelihood of a PPR was found to be dependent on severity of illness, extremes of age, an...

2015
Faisal Nawab

The integrity of elliptic curve cryptography (ECC) stems from the presumed complexity of the elliptic curve discrete logarithm problem (ECDLP). Thus, the study of algorithms to solve the ECDLP is essential for two reasons: (1) to establish the integrity of ECC, and (2) to guide designers in the choice of ECC parameters, such as the length of the parameters and the characteristics of the curve. ...

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