, lead- ing to memory loss and changes in thinking and other brain functions. it usually develops slowly and gradually gets worse as brain function declines and brain cells eventually wither and die. ultimately, alzheimer's is fatal, and currently, there is no cure. hallmark changes of alzheimer's •...
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. more specifically, they focused on two important features of the spike protein -- the receptor-binding domain (rbd), a kind of grappling hook that grips onto host cells, and the cleavage site, a molecular can opener that allows the virus to crack open and enter host cells. the scientists found that...
sounds at safe levels that do not affect our hearing. however, when we are exposed to harmful noise —sounds that are too loud or loud sounds that last a long time—sensitive structures in our inner ear can be damaged, causing noise-induced hearing loss (nihl). these sensitive structures, called hair cells...
sounds at safe levels that do not affect our hearing. however, when we are exposed to harmful noise —sounds that are too loud or loud sounds that last a long time—sensitive structures in our inner ear can be damaged, causing noise-induced hearing loss (nihl). these sensitive structures, called hair cells...
hydrogen reacts with oxygen without burning. the energy released is used to generate electricity, which is used to drive an electric motor. this is a more environmentally friendly system and over the last decades much research has been undertaken by chemists and engineers to produce very efficient fuel cells...
"within an individual, you have millions of variants," explained dr. wayne koff, chief scientific officer for the international aids vaccine initiative . hiv invades the body by attaching to, and killing, cd cells in the immune system. these cells are needed to send signals for other cells to generate...
sounds at safe levels that do not affect our hearing. however, when we are exposed to harmful noise —sounds that are too loud or loud sounds that last a long time—sensitive structures in our inner ear can be damaged, causing noise-induced hearing loss (nihl). these sensitive structures, called hair cells...
financial transactions novo nordisk has strict standards for financial transactions relating to the acquisition of human biosamples for research uses. these are aligned with article of the convention on human rights and biomedicine of the council of europe, which states that the human body and its parts...