๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Every subsemigroup of a free semigroup with zero is not an R-semigroup

โœ Scribed by H. J. Shyr


Publisher
Springer
Year
1976
Tongue
English
Weight
106 KB
Volume
12
Category
Article
ISSN
0037-1912

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## Abstract Current public health physical activity (PA) guidelines recommend that older adults accumulateโ€‰โ‰ฅโ€‰2.5โ€‰hours per week of moderateโ€ to vigorousโ€intensity PA to optimize health. The aim of this study was to examine (1) whether adults who meet the current PA guidelines are at reduced risk of