Appropriate use

There are available from experiment, for such reactions, measurements of rates and the familiar Arrhenius parameters and, much more rarely, the temperature coefficients of the latter. The theories which we use, to relate structure to the ability to take part in reactions, provide static models of reactants or transition states which quite neglect thermal energy. Enthalpies of activation at zero temperature would evidently be the quantities in terms of which to discuss these descriptions, but they are unknown and we must enquire which of the experimentally available quantities is most appropriately used for this purpose. 

Retention and drainage additives are vital to the use of recycled fibers. Papermakers consider recycled fibers to behave like virgin fines, while recycled fines behave like filler. Drainage on the paper machine can be impeded and first-pass retention reduced by the use of recycled fiber (9). Additionally, the negative impact of contaminants found in recycled fibers can be minimized by the appropriate use of dispersants and other pitch-control additives. 

The sulfa dmgs are stiH important as antimicrobials, although they have been replaced in many systemic infections by the natural and semisynthetic antibiotics. They are of great value in third world countries where problems of storage and lack of medical personnel make appropriate use of antibiotics difficult. They are especially useful in urinary tract infections, particularly the combination of sulfamethoxazole with trimethoprim. Their effectiveness has been enhanced by co-adniinistration with dihydrofolate reductase inhibitors, and the combination of sulfamethoxazole with trimethoprim is of value in treatment of a number of specific microbial infections. The introduction of this combination (cotrimoxazole) in the late 1960s (1973 in the United States) resulted in increased use of sulfonamides. 

Sound experimental execution including appropriate use of state-of-the-art equipment and calibration of that equipment... 

It is important to note that graphitically corroded metal may be overlooked in a simple visual inspection. Appropriate use of a sharp probe or hammer should be helpful in the identification. 

Design equipment to accommodate maximum operating envelope. Appropriate use of Safety-Related Systems (SRS) such as Safety-Instrumented Systems (SIS). 

Maintain good operating and cleaning procedures Provide fixed water spray, if appropriate Use inherently safe material, where possible Provide inert purge... 

It is up to the researcher to decide whether to use a Cartesian similarity measure or a dihedral measure and what elements to include in the summation [29]. It should be stressed that while the RMS distances perfonn well and are often used, there are no restrictions against other similarity measures. Eor example, similarity measures that emphasize chemical interactions, hydrophobicity, or the relative orientation of large molecular domains rather than local geometry may serve well if appropriately used. 

What are appropriate uses of mobile platforms for monitoring ... 

Risk Assessment and Management Commission must report to Congress on the appropriate use and policy implications of risk assessment and risk management in various regulatory programs. 

Use doghouse enclosures where appropriate use hoods to collect fugitive emissions. 

Correct and appropriate use of OELs in practice requires considerable knowledge and experience, particularly in cases where there is exposure to mixtures rather than to one substance in isolation, where it is not practical to evaluate the effects of all possible conditions of exposure, or where the work ing patterns are nonstandard. 

Of greater challenge is the selective hydrogenation of those carbonyl compounds having two or more double bonds. Sometimes conditions can be adjusted so that either or both double bonds can be reduced at will. Quantitative yields of either 19 or 21 could be obtained by hydrogenation of 20 with appropriate use of modifiers (114). 

Direct current motors are most appropriately used in applications where a dc power supply is available or where a simple method of speed control is desired. The fans used in automobile heating and air conditioning systems are driven by direct-current motors. 

The Charter empowers The Engineering Council to establish and maintain a Register of qualified engineers. The registrants may, where appropriate, use one of the following titles and designatory letters ... 

The problem that we noted above with clusters appears also in chemical enumeration when we consider compounds formed by attaching radicals which may be chiral or achiral to a frame which is achiral. In this case, too, Polya s Theorem cannot be used, but the problem can be solved by the appropriate use of Burnside s Lemma. It is also amenable to the methods of Redfield, as shown in [DavRSl] and [LloE85]. 

A11 elegant application of the strategy based on the appropriate use of a 6-exo or 6-endo cyclization of a 5- or y-epoxy alcohol, respectively, to give corresponding adjacent or fused THP rings can be found in the regioselective synthesis of the ABC tris-THP core of thyrsiferol and venustatriol [29b]. 

The carcinogenic potential of the profiled substance is qualitatively evaluated, when appropriate, using existing toxicokinetic, genotoxic, and carcinogenic data. ATSDR does not currently assess cancer potency or perform cancer risk assessments. Minimal risk levels (MRLs) for noncancer end points (if derived) and the end points from which they were derived are indicated and discussed. 

Barnett HJ, Meldrum HE, EUasziw M. The appropriate use of carotid endarterectomy. CMAJ 2002 166 1169-1179. 

The discormect between the efficacy of rt-PA and its infrequent use is a significant problem, one which telemedicine may solve by bringing to the bedside both neurological and imaging expertise, facilitating the appropriate use of this therapy. 

Kane JS (1992) Reference samples for use in analytical geochemistry their availability, preparation, and appropriate use. Joum Geochem Explor 44 37-63. 

For compounds applied to annual crops, another approach is to apply the compound to bare soil prior to crop emergence and follow the soil dissipation of the compound as the crop emerges and grows throughout its normal growing season.This is the appropriate use pattern for pre-emergence compounds and represents another approach that may used to study the soil dissipation of foliar-applied compounds. 

Demonstrate the appropriate use of drug delivery devices and peak flow meters then have the patient perform these activities for you. If the task is performed incorrectly, demonstrate the skill again, emphasizing the incorrect step and have the patient re-demonstrate the skill. 

Theophylline is a non-specific phosphodiesterase inhibitor that increases intracellular cAMP within airway smooth muscle resulting in bronchodilation. It has a modest bronchodila-tor effect in patients with COPD, and its use is limited due to a narrow therapeutic index, multiple drug interactions, and adverse effects. Theophylline should be reserved for patients who cannot use inhaled medications or who remain symptomatic despite appropriate use of inhaled bronchodilators. 

Topical corticosteroids are typically reserved for patients who do not respond to topical mesalamine. Patients should be properly educated regarding appropriate use of topical products. This includes proper administration and adequate retention of topical mesalamine products in order to maximize efficacy. 

Explain how to evaluate a patient for the appropriate use of hormone-replacement therapy. 

Educate patients on osteoporosis and drug treatment, including appropriate use, administration, and adverse effects. 

Educate the patient about appropriate use of nonpharmacologic treatments for OA. 

Provide patient education with regard to appropriate use of antimicrobials (e.g., dose, interval), adverse effects, and drug interactions (which may play a role in therapy failure and increased toxicity). 

---