our growth is done through the cell process metabolism.
our growth is done through the cell process metabolism.
our growth is done through what cell process?
metabolism
hall is a pioneer in the fields of tor signaling and cell growth control. in 1991, michael n. hall discovered a protein, which regulates cell growth, cell size and cell division in yeast cells. since the function of this protein is inhibited by the substance rapamycin, hall gave the growth regulator the name «target of rapamycin» or for short «tor». tor is a conserved protein kinase activated by growth factors, nutrients, and insulin. it is a central controller of cell growth and metabolism. tor plays a key role in aging and the development of diseases such as cancer, obesity, diabetes mellitus, and cardiovascular disease. insights into tor signaling pathways have been applied for new therapeutic strategies. in 2017, hall received the albert lasker basic medical research award.
michael n. hall
in the full-cell process, the intent is to keep as much of the liquid absorbed into the wood during the pressure period as possible, thus leaving the maximum concentration of preservatives in the treated area. usually, water solutions of preservative salts are employed with this process, but it is also possible to impregnate wood with oil. the desired retention is achieved by changing the strength of the solution. william burnett patented this development in 1838 of full-cell impregnation with water solutions. the patent covered the use of zinc chloride on water basis, also known as "burnettizing". a full-cell process with oil was patented in 1838 by john bethell. his patent described the injection of tar and oils into wood by applying pressure in closed cylinders. this process is still used today with some improvements.
wood preservation