Search results
Results from the WOW.Com Content Network
once every 6 hours q2wk: once every 2 weeks qAc Before every meal (from Latin quaque ante cibum) q.a.d. every other day (from Latin quaque altera die) QALY: quality-adjusted life year: q.AM: every day before noon (from Latin quaque die ante meridiem) q.d. every day (from Latin quaque die) q.d.s. four times each day (from Latin quater die ...
Such an infection is called a subclinical infection. In epidemiology , particularly in the discussion of infectious disease dynamics (mathematical modeling of disease spread), the infectious period is the time interval during which a host (individual or patient) is infectious, i.e. capable of directly or indirectly transmitting pathogenic ...
For the full specification of the model, the arrows should be labeled with the transition rates between compartments. Between S and I, the transition rate is assumed to be (/) / = /, where is the total population, is the average number of contacts per person per time, multiplied by the probability of disease transmission in a contact between a susceptible and an infectious subject, and / is ...
For example, a 10-year flood has a 1/10 = 0.1 or 10% chance of being exceeded in any one year and a 50-year flood has a 0.02 or 2% chance of being exceeded in any one year. This does not mean that a 100-year flood will happen regularly every 100 years, or only once in 100 years. Despite the connotations of the name "return period".
Co-existing diseases can but don't necessarily contribute to death [56] to various degrees in various ways. In some cases, comorbidities can be major causes with complex underlying mechanisms, and a range of comorbidities can be present once. [57] Pandemics [58] [59] and infectious diseases or epidemics can be major underlying causes of deaths.
The addition x + a on the number line. All numbers greater than x and less than x + a fall within that open interval. In mathematics, a real interval is the set of all real numbers lying between two fixed endpoints with no "gaps". Each endpoint is either a real number or positive or negative infinity, indicating the interval extends without a ...
Sarcoidosis (/ ˌ s ɑːr k ɔɪ ˈ d oʊ s ɪ s /; also known as Besnier–Boeck–Schaumann disease) is a disease involving abnormal collections of inflammatory cells that form lumps known as granulomata. [2] The disease usually begins in the lungs, skin, or lymph nodes. [2]
The main objective of interval arithmetic is to provide a simple way of calculating upper and lower bounds of a function's range in one or more variables. These endpoints are not necessarily the true supremum or infimum of a range since the precise calculation of those values can be difficult or impossible; the bounds only need to contain the function's range as a subset.