A convenient method for the separation of molecular species of sphingomyelin by reversed-phase high-performance liquid chromatography (HPLC) is described.Sphingomyelin species from bovine brain and sheep and pig erythrocytes were resolved into 10-12 separate peaks on a micro -BondaPak C(18) or Nucleosil-5-C(18) reversedphase column with methanol-5
Markets are systems composed of complex relationships, and many Openers transactions are usually conducted in anonymity.The dominant economic theory holds that people are completely selfish and individualistic beings.Therefore, in such interactions, anonymous or not, they always try to maximize their earnings, profit, or wellbeing, although, for th
It is important to Support and develop start-ups and SMEs in Iran, because the development of entrepreneurship can play an important role in the economic development of the country.According to the first paragraph of the general policies of resistance Combs economy, there is a need for providing conditions and activating financial resources in orde
ObjectivesIn order to solve problems such as bad weather conditions, remote routes, long rescue time and no suitable port of call for rescue supplies, which are unique to polar routes and not conducive to personnel safety, this paper presents a design concept in which the polar cruise ship itself is the best lifeboat in the event of fire or floodin