منابع مشابه
Allometry of masticatory loading parameters in mammals.
Considerable research on the scaling of loading patterns in mammalian locomotor systems has not been accompanied by a similarly comprehensive analysis of the interspecific scaling of loading regimes in the mammalian masticatory complex. To address this deficiency, we analyzed mandibular corpus bone strain in 11 mammalian taxa varying in body size by over 2.5 orders of magnitude, including goats...
متن کاملPhysics of chewing in terrestrial mammals
Previous studies on chewing frequency across animal species have focused on finding a single universal scaling law. Controversy between the different models has been aroused without elucidating the variations in chewing frequency. In the present study we show that vigorous chewing is limited by the maximum force of muscle, so that the upper chewing frequency scales as the -1/3 power of body mas...
متن کاملPlacental invasiveness and brain-body allometry in eutherian mammals.
Brain growth is a key trait in the evolution of mammalian life history. Brain development should be mediated by placentation, which determines patterns of resource transfer from mothers to fetal offspring. Eutherian placentation varies in the extent to which a maternal barrier separates fetal tissues from maternal blood. We demonstrate here that more invasive forms of placentation are associate...
متن کاملComparison of the effect of chewing mastic and spearmint sugar-free chewing gum on salivary flow rate and pH
BACKGROUND AND AIM: Hyposalivation can cause many difficulties for patients like opportunistic infections such as candidiasis, mouth sores, and dysphagia as well as reduced quality of life (QOL). Methods such as using sugar-free chewing gum are recommended to treat this complication. Mastic is a natural substance and since it has various properties in addition ...
متن کاملAreca chewing among Sri Lankan adolescents.
OBJECTIVE To determine the prevalence of and characteristics associated with Sri Lankan adolescents' chewing of areca. BASIC RESEARCH DESIGN Cross-sectional descriptive study based on a self-administered questionnaire. PARTICIPANTS 633, 15-year-olds in the Bandarawela education zone of Sri Lanka. RESULTS Nearly 7% of the sample were current chewers of arecanut and 1% of commercially avail...
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ژورنال
عنوان ژورنال: Journal of Mammalogy
سال: 2008
ISSN: 0022-2372,1545-1542
DOI: 10.1644/07-mamm-a-188.1