Results 291 to 300 of about 13,772,771 (329)

Compositional perspectives on human brain aging

Biosystems, 2011
Using publicly available microarray data from the frontal cortex of 30 individuals, spanning the ages of 26-106 years old, we investigate the expression patterns of compositionally distinct genes during human brain aging. Our analyses revealed that at advance ages, GC-poor genes appear to be induced while GC-rich genes are repressed.
Stilianos, Arhondakis, Sophia, Kossida
openaire   +2 more sources

Aging and Body Composition

Exercise and Sport Sciences Reviews, 1995
There is no doubt that body composition changes with aging. Some general trends have been described, including an increase in body weight and fat mass in middle age followed by a decrease in stature, weight, FFM, and body cell mass at older ages. Losses in muscle, protein, and bone mineral contribute to the decline in FFM; however, the onset and rates ...
S, Going, D, Williams, T, Lohman
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Bonding of composite to water aged composite with surface treatments

Dental Materials, 2007
The purpose of this study was to determine the shear bond strength of new composite to water aged composite with and without interfacial surface treatment.Two hundred and eighty cylindrical samples were prepared for each of three resin composites (Spectrum, Dentsply; Durafill, Kulzer; Herculite, Kerr).
Pavinee, Padipatvuthikul, Lawrence H, Mair   +1 more
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Investigating the age composition of Indo-Pacific humpback dolphins in the Pearl River Estuary based on their pigmentation pattern

, 2020
Lang Guo, Wenzhi Lin, C. Zeng, Dingyu Luo, Yuping Wu   +4 more
semanticscholar   +1 more source

Aging and Changes in Body Composition

2017
As we grow older changes in body composition occur. These changes include a loss of lean body mass (LBM), bone mass, body water, and a relative increase of fat mass. In view of these changes and acknowledging demographic trends, elder people are facing a growing burden of health-compromising levels of their weight, including underweight, overweight ...
van Asselt, D., de Groot, C.P.G.M.
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Ageing, hormones, body composition, metabolic effects

World Journal of Urology, 2002
The age-associated, progressive changes in body composition are paralleled by a progressive decrease in hormone levels, among which there are testosterone (T) and growth hormone (GH). Moreover, the age-associated changes are rather similar to the changes in body composition seen in hypogonadism or hyposomatotropism, respectively.
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Thermo-oxidative ageing of composite materials

Journal of Composite Materials, 1995
A series of tests was conducted on two carbon/epoxy systems to assess key factors in the characterization of the thermo-oxidative stability of composite materials. Mechanical properties (open hole compression strength, fracture toughness, and unidirectional compression strength) were determined from specimens aged in air at 177°C (350'F) up to 5,000 ...
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Age–sex composition

2020
Gayl D. Ness, Meghan V. Golay
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Age Composition

1976
Henry S. Shryock, Jacob S. Siegel
openaire   +1 more source

Who Are the People in Your Neighborhood? Neighborhood Age Composition and Age Discrimination

, 2016
J. Stokes, S. Moorman
semanticscholar   +1 more source