Results 261 to 270 of about 2,439,891 (316)

Changing trends [PDF]

open access: yesCa-A Cancer Journal for Clinicians, 1998
Dr. Rosenthal, President of the American Cancer Society, notes that in this year's annual cancer statistics article, for the first time a favorable change in direction is reported. The data document a reduction in the total number of new cancer cases and declining cancer death rates in the United States.
David S Rosenthal
exaly   +3 more sources

Testing for Trend [PDF]

open access: possibleSSRN Electronic Journal, 2007
Summary: The paper examines various tests for assessing whether a time series model requires a slope component. We first consider the simple \(t\)-test on the mean of first differences and show that it achieves high power against the alternative hypothesis of a stochastic nonstationary slope and also against a purely deterministic slope.
Fabio Busetti, Andrew Harvey
openaire   +2 more sources
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Trends in Autism

International Journal of Adolescent Medicine and Health, 2004
Leo Kanner described autism in 1943, and Hans Asperger described the syndrome in 1944. The term Pervasive Developmental Disorders (PDD) was first used in the 1980s to describe a class of disorders that include (1) Autistic disorder, (2) Rett disorder or syndrome, (3) Childhood Disintegrative Disorder, (4) Asperger's disorder or syndrome, and (5 ...
Joav, Merrick   +2 more
openaire   +2 more sources

TRENDS

Pediatrics, 1948
AT THE present writing, the 81st Congress has reconvened but it is doubtful whether much, if any, attention will be given to the many health bills which have been discussed at such length in Committee and on the Floor. By the time this review and preview is published, the 81st Congress will have finally adjourned and all unfinished business in the ...
openaire   +2 more sources

Trends in identification

Automatica, 1979
The paper refers to methods used for identification of linear and nonlinear systems. Deterministic and stochastic approaches are distinguished and specific features concerning parameters, structure and state estimation are briefly discussed from the point of view of possible advantages and difficulties for identification. Attention is paid to different
openaire   +2 more sources

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