Risk-neutral measures find extensive application in the pricing of derivatives. Indifference to risk. The risk-neutral investor would be in the middle of the continuum represented by risk-seeking investors at one end, and risk-averse investors at the other extreme. Risk-neutral measures find extensive application in the pricing of derivatives.
Macrophages are highly specialized in removal of dying or dead cells and cellular debris. This role is important in chronic inflammation, as the early stages of inflammation are dominated by neutrophil granulocytes, which are ingested by macrophages if they come of age (see CD31 for a description of this process).
They are humorously called the suicide bags or suicide sacs of the cell because they destroy leftover content. Lysosomes are also in charge of cellular homeostasis, plasma membrane repair, cell signaling, and energy metabolism. These are actively related to maintaining health and fighting diseases in their host organisms. Depending on the job they'll do in the cell, lysosomes can vary greatly in size.