Environment factor

The extent to which a particular combination of such "operating environment" factors will be perceived by the workers as being stressful will depend on the available resources such as the quality of the control panel, procedures, training, organizational and social factors, and, finally, the individual characteristics of the workers. The outcome of this transaction between stress factors and coping resources will influence the onset of worker stress. Situations are not stressful merely because of the presence of a number of external stressors, but because they are perceived as such by workers. 

F = environment factor, values of which are showm in Table 7-8 for various types of installation. 

For refrigerated tanks the total venting requirement is the value determined from Table 7-17, multiplied by the environment factor F from Table 7-18. For tanks greater than 2,800 ft. exposed wetted surface, use the venting formula for V,. (Equation 7-49). Do not apply the factors from Table 7-18. 

F = environment factor for Table 7-8 F gs = relief valve factor for non-insulated vessels in gas service exposed to open fires F = Fj, = fraction of heat radiated... 

F = operating environment factor for safety relief of gas only vessels (see pg. 446 ... 

F = operating environment factor, min value recommended = 0.01 when the minimum value is unknown, use F = 0.045. Can be calculated by [33c]... 

The environment factor F is used to account for vessel protection from insulation. A number of values for various insulation thicknesses are shown in Table 9-2. 

Menser, H. A., Jr. The Effects of Ozone and Controlled Environment Factors on... 

Chawla SC, Nehta SP. 1973. A study of host and environment factors in cases of accidental poisoning admitted in Irwin hospital. Indian J Med Res 61(5) 724-731. 

Population-based surveys typically have found that a substantial percentage of people report that they do not get sufficient sleep (1). While the exact prevalence may be disputed, it is an accepted fact that many people get insufficient sleep. In addition to those recognizing their insufficient sleep are other individuals who show objective evidence of excessive sleepiness, deny difficulty with sleepiness, and yet show normalization of their alertness with extended time in bed (TIB) (2). Consciously or subconsciously, people employ various stratagems to counteract the disruptive effects of their sleep loss. While the functionally disruptive effects and health risks associated with sleep loss and its consequent daytime sleepiness are generally recognized, questions remain regarding what behavioral and environment factors act as countermeasures to sleep loss and daytime sleepiness, as well as to their effectiveness and duration of effect. 

Environment Factors external to the human host, including physical, chemical, biological, social, cultural, and economic factors — any or all of which can influence health status of populations. 

The Environmental Stress Cracking (ESC) of polymer materials can be can give rise to the sudden and unpredicted failure of constructions. The chance of ESC occuring can easily be overlooked because neither loading nor the environment factor in isolation can be termed damaging to the material, but the two in combination is fatal. Knowledge of ESC mechanisms is important if one is to succesfully prevent premature failure and economic loss. 

Elements in an immunoassay that could impact its robustness include incubation temperatures, light exposure (enzyme-linked immunosorbent assay, ELISA), and different lots of matrix (plasma, serum CSF). The ruggedness of the analytical method can be tested by implementing changes to the analysts, different instruments, batch size, and the day, time, or other environment factors otherwise should not greatly impact the consistency of the assay. 

Tingey, D. T. (1981). The effect of environment factors on the emission of biogenic hydrocarbons from live oak and slash pine. In Atmospheric Biogenic Hydrocarbons (J. J. Bufalini and R. R. Arnts, eds.), Vol I, Emissions, pp. 53-79. Ann Arbor Science, Ann Arbor, Michigan. 

The helical transitions from B-DNA to A-DNA and from B-DNA to Z-DNA can be treated as the zipper model. In these transitions, a defines the extra energy AGj° required to form a junction between the two forms. A relatively small AGj° for the nucleation is probably due to the small difference in the bp stacking between A-DNA and B-DNA. The parameter s is associated with the difference in energy between bps in A-DNA versus B-DNA and on environment factors such as temperature, salt and organic solvents, all of which stabilize left-handed Z-DNA. 

Complexity/multiplicity of factors The external and internal environments of an enterprise include a large number of interacting factors. Market demand, intensity of competition, socioeconomic situation, labor market, and technology are examples of the extern environment factors. Product quality, process technology, distribution channels, and financial position are examples of the internal enviromnent factors. 

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