Results 211 to 220 of about 25,967 (243)

Granular motion in rotating drums: bed turnover time and slumping–rolling transition

Powder Technology, 2002
Theoretical models are presented for calculation of the bed turnover time in both the slumping and rolling modes and the slumping-to-rolling transition in rotating drums with less than 50% volumetric fill of free-flowing granular materials. It is suggested that the transition from slumping to rolling occurs when the two turnover times are equal.
Y L Ding, D J Parker, J P K Seville
exaly   +2 more sources

Altered biochemical markers of bone turnover in humans during 120 days of bed rest

Bone, 2000
Microgravity induces significant and progressive bone loss in both humans and animals. This is the consequence of disturbed bone remodeling. We performed a bed rest experiment to simulate microgravity and tried to clarify bone metabolism by measuring biochemical markers of bone turnover. Six healthy volunteers participated in 120 days of bed rest.
M, Inoue, H, Tanaka, T, Moriwake, M, Oka, C, Sekiguchi, Y, Seino   +5 more
exaly   +3 more sources

Bed Rest Decreases Whole-Body Protein Turnover in Post-Absorptive Man

Clinical Science, 1996
1. Whole-body protein turnover was measured using the [15N]glycine tracer technique in 10 post-absorptive healthy volunteers during normal daily activities and a period of bed rest. 2. Bed rest reduced whole-body protein turnover (25%), synthesis (26%) and breakdown (25%), but short-term urinary nitrogen excretion remained unchanged.
Halliday D
exaly   +3 more sources

Effect of bed rest during pregnancy on bone turnover markers in pregnant and postpartum women

Bone, 2007
The aims of our study were to evaluate the changes in bone turnover markers during pregnancy and puerperium as a longitudinal study and to elucidate the effect of bed rest during pregnancy on bone turnover markers in pregnant and postpartum women.The study population comprised 27 Japanese pregnant women aged 23-40 years.
Hirokazu Uemura, Takashi Kaji, Kazuhisa Maeda   +2 more
exaly   +3 more sources

Changes in bone turnover markers during 14-day 6� head-down bed rest

Journal of Bone and Mineral Metabolism, 2003
Osteoporosis caused by exposure to microgravity represents a serious clinical concern, but the mechanisms have yet to be fully elucidated. The present research aimed to elucidate the effects of microgravity environments on bone turnover, with a specific focus on changes in bone resorption markers such as type I collagen cross-linked N-telopeptides (NTx)
Kenichi Iwasaki, Kazuyoshi Yajima
exaly   +2 more sources

Design and Analysis of Turnover Function of Nursing Bed Based on Ergonomics

Lecture Notes in Mechanical Engineering, 2023
Weiliang Zeng, Xinzui Wang, Fucheng Cao, Haibing Xin, Xihua Li, Zhaobo Li, Hui Fu   +6 more
exaly   +2 more sources

The impact of the Community Care Act on bed turnover in a rehabilitation unit

Clinical Rehabilitation, 1995
A significant proportion of hospital beds is usually occupied by patients awaiting placement, home adaptations or other care provisions by Social Services. Anecdotal evidence suggests that the number of 'acute bed-blockers' has fallen since the implementation of the Community Care Act (CCA).
Amo Bakheit, DL McLellan
openaire   +1 more source

Biochemical parameters of bone turnover during ten days of bed rest and subsequent mobilization

Bone and Mineral, 1991
Immobilization is associated with increased bone resorption. To investigate the early onset of increased bone resorption, we evaluated 14 patients who were immobilized for 10 days because of lumbar disc protrusion. The fasting urinary hydroxyproline/creatinine ratio increased significantly after four days (P less than 0.01), reached a peak after 10 ...
H E, van der Wiel, P, Lips, J, Nauta, J C, Netelenbos, G J, Hazenberg   +4 more
openaire   +2 more sources

Rates of ammonium turnover and the role of amino-acid deamination in seagrass (Zostera capricorni) beds of Moreton Bay, Australia

Deep Sea Research Part B. Oceanographic Literature Review, 1986
Samples of sediments from Australian seagrass (Zostera capricorni Aschers.) beds were taken in June to August 1983 (forN experiments) and November 1982 to January 1983 (N experiments). The ammonium pool turned-over every 0.4 to 0.8 d, as determined with aN isotope-dilution technique.
Boon, P. I., Moriarty, D. J.W., Saffigna, P. G.   +2 more
openaire   +5 more sources

Variability of growth, health, and population turnover within mussel beds ofPerna canaliculusin northern New Zealand

Marine Biology Research, 2008
The growth and health of intertidal mussel (Perna canaliculus) populations were investigated along an exposed coastline at Ninety Mile Beach, northern New Zealand.
Andrea C. Alfaro, Steve C. Webb, Claire Barnaby   +2 more
openaire   +1 more source