CONCERNING NORMALS, SECULAR TRENDS AND CLIMATIC CHANGES
نویسندگان
چکیده
منابع مشابه
Secular trends in growth.
Since the 19th century there have been clearly documented secular trends to increasing adult height in most European countries, with current rates of 10-30 mm/decade. Over the same period menarcheal age has also fallen steeply, but has now stabilized at approximately 13 years and may be rising again. Height trends tend to be greater in childhood than in adulthood due to the associated advance i...
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Climate studies often fit linear trends to data. In many cases simplifying assumptions such as independent errors and constant variance are used. We review a variety of approaches to estimating linear trends, and illustrate with US temperature data how oversimplified assumptions may lead to false significance. We outline a variety of methods to fit nonlinear trend models. Using the Berkeley Ear...
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In Dr Moell's series of cases there was no increase in weight velocity when steroids were omitted from reinduc-tion therapy. Their attained height (-0.06 standard deviation score) and weight (-0.03 standard deviation score) at diagnosis were comparable. Weight velocity remained normal during maintenance therapy, whereas height velocity was reduced. Consequently, by the stopping of treatment the...
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Studies that use cross-sectional data have shown an increase in the prevalence of childhood obesity, as assessed by BMI (weight in kilograms divided by height in meters squared), over the past 30 y in the United States (1). Between the 1960s and 2000 the distribution of BMI among children became more skewed, whereas between 2000 and 2010 there was relatively little change among either boys or g...
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Stroke welcomes Letters to the Editor and will publish them, if suitable, as space permits. They should not exceed 1,000 words (excluding references) and may be subject to editing or abridgment. Please submit Letters to the Editor in duplicate, typed double-spaced. Include an appropriate title and a fax number for the corresponding author. The American Heart Association requires that all author...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1923
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1923)51<383:cnstac>2.0.co;2