Volatility is generally used to describe the data variation, and it can be measured by the valid time period during which the data remains valid.
Previously on AngelList, investors only had to fill out the form once per valid time period (3-12 months depending on which method was used), but it was always in the context of a specific closing.
Each entry of the table describes the identity of a specific mesh router by binding the following information together with the mesh router: IP address, SL, public key, and valid time period.
Total time spent in this category in minutes per week was calculated by summing all valid time periods in that category, divided by the number of valid wearing days (resulting in minutes per day) as the number of wearing days may vary across participants, and consequently multiplied by 7 (resulting in minutes per week).
For standardized codes, such as ICD-9 and Current Procedural Terminology codes, the codes are ascertained to be valid for the time period the patient record is reported.
In fading environments, the estimation is only valid during a limited time period, the so-called coherence time.
These agreements are often the result of negotiations between both parties and are valid for a fixed time period.
As new evidence-based medicine continues to evolve and guidelines and protocols continue to be periodically updated, along with the introduction of new technologies such as electronic prescribing, clinical decision support or bar-coding, a given set of FMEA results will only be valid for a limited time period and should therefore be updated regularly.
Although we applied a cross-sectional study design, we were able to collect reasonably valid exposure information from the time period relevant for causation of reduction in fetal growth and therefore our results support a causal relation between the exposures and the outcome of interest.
Celestial mechanics in the solar system is ultimately an n-body problem, but the special configurations and relative smallness of the perturbations have allowed quite accurate descriptions of motions (valid for limited time periods) with various approximations and procedures without any attempt to solve the complete problem of n bodies.
Capacity levels are defined as available maximum capacities (e.g., workforce, machines, shelves, etc. that determine the maximum quantity produced or stored at a location within one time period), which are valid for single time periods of the planning horizon and can develop in any sequence.
