Density-dependent limiting factors cause a population's per capita growth rate to change typically, to drop with increasing population density. One example is competition for limited food among members of a population. Density independent factors affect per capita growth rate independent of population density.
An international team of scientists led by the Lomonosov Moscow State University group made a significant step in creating a new type of drug for treatment of autoimmune diseases, such as rheumatoid arthritis and Crohn's diseaase
