3456 cm−1corresponds to OH stretching vibrations. XRD analysis reveals a sharp peak suggesting the crystalline nature of HApNP (Fig. 1B). All the XRD peaks are in agreement with the pure hexagonal phase of HAp (match with JCPDS no 09-0432). FESEM analysis reveals rod-shaped HApNP ...
While weight-bearing exercises require some degree of mobility, there is a passive, drug-free treatment which helps prevent bone loss even for infirm or wheelchair bound individuals. It consists of subjecting bone to mildVibrations, which - just like vigorous exercise - helps actually increase bone...
Noise pollution is defined as a collection of noises that are either high or low in sound intensity. Noise pollution is defined as a source of sound wave vibrations that causes the eardrum to vibrate. Worksheet PrintWorksheet 1. You are an occupational hygienist who has been tasked with address...
The cause of primary tinnitus is not known, but is thought to be multifactorial, involving multiple physiologic and possibly genetic mechanisms.4Dysfunction of the cochlea (the inner ear structure responsible for turning vibrations into nerve signals), abnormal nerve signaling in the brain auditory sys...
Scientists used to think it was so these crawlers wouldn’t drown. But worms can breathe through their skin, so they need moisture. Experts believe it could be that the wet conditions help worms migrate faster, or that the rain causes vibrations that sound like a predator,says Scientific ...
In humans and othermammalsand inbirds, the heart is a four-chambered double pump that is the centre of thecirculatory system. In humans it is situated between the two lungs and slightly to the left of centre, behind the breastbone; it rests on thediaphragm, the muscularpartitionbetween the...
Walking was the original mode of ground transportation, utilized for thousands of years. Later, humans tamed animals such as horses, camels, and oxen to aid in transporting goods and people. Carts and chariots were developed with the invention of the wheel in ancient Mesopotamia, leading to the...