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At least 253 records · Page 14Linked to original sources
PubMed1982

Hazardous waste management system: standards applicable to generators of hazardous waste and standards applicable to owners and operators of hazardous waste treatment, storage, and disposal facilities--Environmental Protection Agency. Proposed rule.

The Environmental Protection Agency (EPA) is today proposing amendments to its hazardous waste regulations under Subtitle C of the Resource Conservation and Recovery Act (RCRA). These amendments would replace the annual reporting requirements for hazardous waste generators and owners and operators of hazardous waste treatment, storage, ad disposal (TSD) facilities with a biennial survey of representative samples of those populations. This approach will provide verifiable data on a wider range of topics, better serve EPA's long term regulatory needs under RCRA, and reduce significantly the information burden on the regulated community.

Refuse Disposal↗
PubMed2001

Comparison of treatment of acne vulgaris with alternate-day applications of tazarotene 0.1% gel and once-daily applications of adapalene 0.1% gel: a randomized trial.

Tazarotene and adapalene are recently introduced topical retinoids that are useful in the treatment of acne vulgaris. The clinical benefits of each drug have now been compared in a multicenter, double-blind, randomized, parallel-group study involving 164 patients with mild-to-moderate facial acne vulgaris. Patients were randomized to receive 15 weeks' treatment with alternate-day tazarotene 0.1% gel, with vehicle gel on the intervening evenings, or once-daily adapalene 0.1% gel. Both regimens were comparably effective with no significant between-group differences in efficacy measures. A total of 74% of tazarotene-treated subjects and 73% of adapalene-treated subjects achieved at least a 50% improvement in their acne. In addition, there were no clinically significant differences in tolerability. It is concluded that an alternate-day tazarotene regimen offers efficacy and thus tazarotene treatment can be useful even in patients whose compliance may be suboptimal. An alternate-day regimen also offers the potential for considerable savings in drug costs.

Acne Vulgaris↗
PubMedDate not supplied

Possibilities of the application of regression analysis and analysis of variance. II. Assessment and comparison of acute toxicity: presentation and practical application of the interactive computer program "LD50-MORTALITY".

The paper presents the interactive computer program "LD50-MORTALITY", written in the program language BASIC and used for the assessment of the acute toxicity (calculation of LD50 and other LD values) based on the algorithm of the Finney's probit analysis method. The correctness of the program execution has been shown on the test-example of assessment the acute toxicity (LD50 an LD90) of insecticide rotenone on Macrosiphonelia sanborni (the example is taken from the literature on probit analysis presentation). The results obtained by the program execution have been identical or similar to those given in the example. The results of the assessment and comparison of LD50 have also been presented.

Algorithms↗