1 Medical microbiology: The study of the pathogenic microbes and the role of microbes in human illness. 2  Includes the study of microbial pathogenesis and epidemiology and is related to the study of disease pathology and immunology. This field can be further classified into the following: 2  Plant microbiology and Plant pathology: The study of the interactions between microorganisms and plants and plant pathogens. 3  Soil microbiology: The study of those microorganisms that are found in soil.
Average. The average life span of a cell phone battery is from 400 to 500 charge cycles. That means the average battery lasts from one to two years. A decrease in the duration of the battery's lifespan between charge cycles indicates that the battery should be replaced.Lithium ion batteries usually maintain their full capacity for most of their lifetimes, and then die suddenly.ou can maximize your cell phone's battery by limiting your number of charges. Charging a phone when it is at half power, as opposed to a phone with depleted power, trains a battery to hold only half of a charge.
The real killers of lithium batteries(the kind in your phone), is heat & frequent full discharge/recharge cycles. They have a design life of 3 ~ 5 years, & will last much longer if not subjected to frequent discharge cycles below 40% of capacity. Apple recommends you let your battery fully discharge/recharge once a month...every couple of months will be just fine. So, to maximize your battery life, charge your phone as often as possible & avoid high heat.