Efficacy


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Efficacy

In lighting design, a measure of the luminous efficiency of a specified light source, expressed in lumens per watt. For daylighting, this is the quotient of visible light incident on a surface to the total light energy on that surface. For electric sources, this is the quotient of the total luminous flux emitted by the total lamp power input.

luminous efficacy

The ratio of the total emitted luminous flux, in lumens, to the total electric power consumption in watts.
References in periodicals archive ?
As indicated in Figure 1, coping efficacy related to career uncertainty could be a three-dimensional framework: physical, psychological/cognitive/religious beliefs, and social support network/searching for information.
We analyzed both of our models with uncertainty and sensitivity analysis based on Monte Carlo methods (17-20) (see Appendix for farther details) to quantify the effect of vaccine efficacy, duration of vaccine-induced immunity, and vaccination coverage rates on the cumulative percentage of infections and TB cases prevented.
The third aspect is the counselor's-in-training efficacy level: What are the thoughts that quantify their perceptions of their efficacy.
The data from this Phase IIb efficacy study confirms the results achieved in the previous Phase IIa study," said David Friedland, M.
These efficacy beliefs are thought to have important motivational implications in that they impact an individual's choice of activity, effort, and persistence.
Bandura (1982) states, "Self-percepts of efficacy influence thought patterns, actions, and emotional arousal.
Efficacy expectations affect both an individual's choice of settings, behaviors, and persistence in performance.
CytRx intends to proceed with this maximum dose in the Phase IIb efficacy trial for ALS, subject to U.
The clinical efficacy of ciprofloxacin and levofloxacin is better established for a broad range of indications in comparison to the newer agents.
This lack of preparation for an innovation is evidenced throughout the attempted reforms of the educational system, and this failing has had a substantive effect on teacher attributes of efficacy and empowerment.
Although the findings from sport-related efficacy research are compelling, the measurement of self-efficacy has been inconsistent (Feltz & Chase, in press).
2003) found that coaches who communicate high efficacy beliefs to players in their team, and such teams become more efficacious and performance subsequently improves.