We present the results of laboratory experiments that quantify the physical controls on the thickness of the falling film of liquid around a Taylor bubble, when liquid–gas interfacial tension can be neglected. We find that the dimensionless film thickness l′ (the ratio of the film thickness to the pipe radius) is a function only of the dimensionless parameter Nf = r √ gD3/m, where r is the liqu...

Considering a fatal case of an aged individual, who died due to falling down stairs, the cause of the fatal fall was investigated through experiments. A witness, who was with the victim, when the fatal accident occurred, stated that the aged individual had miss-footed, lost balance at the top of the stairs, and fell accidently from an upper floor to a lower floor. It was very questionable wheth...

Beyond-the-Standard-Model interactions of neutrinos among themselves -- {\it secret interactions} in the supernova core may prevent shock revival, halting explosion. Besides, if en route to Earth undergo with relic neutrinos, neutrino burst reaching be down-scattered energy, falling below detection threshold. We probe through and apply our findings SN 1987A. place most stringent bounds on flavo...

background: fear of falling is not only a risk factor for falls, but it is also an important clinical predictor of functional decline in older adults. this study identified sex differences in fear of falling and related factors in older adults with low grip strength. methods: the data of 902 older adults from the 2012 korean national survey, conducted as a research project by the korea employme...

Objectives: Balance disorder is one of the most common problems after stroke causes falling and fear of falling in some patients. The balance based video games are newly used in people with motor problems. It is very important to use different interventions for balance issues. The aim of this study is to determine the effectiveness of videogame on balance and fear of falling in one participant....