Many waterbodies across the United States do not meet water quality standards. To help determine where and to what extent improvements should be sought, policymakers must consider the costs of regulations with their monetized values. We ...Scientific knowledge related to quantifying the monetized benefits for landscape-wide water quality improvements does not meet current regulatory and benefit–cost analysis needs in the United States. In this study we addressed this knowledge gap by ...
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Oxy-Calorimeter.Francis G. Benedict and Edward L. FoxCite this: Ind. Eng. Chem. 1925, 17, 9, 912–918Publication Date (Print):September 1, 1925Publication History Published online1 May 2002Published inissue 1 September 1925https://pubs.acs.org/doi/10.1021/ie50189a014https://doi.org/10.1021/ie50189a014research-articleACS PublicationsRequest reuse permissionsArticle Views77Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
The purpose of this study was to determine the relative importance of the factors intensity and distance in interval training on maximal aerobic power (maxJOURNAL/masis/beta/00005756-197300510-00005/ENTITY_OV0312/v/2016-08-16T100014Z/r/image-pngO2). Three programs were used: (1) high-intensity, short-distance sprints (Group S); (2) low-intensity, long-distance runs (Group L): and (3) a combination of both (Group M). Following 7½ weeks of training 5 days per week, significant increases in maxJOURNAL/masis/beta/00005756-197300510-00005/ENTITY_OV0312/v/2016-08-16T100014Z/r/image-pngO2 (liters/min) and significant decreases in maximal and submaximal heart rates were found within each group; increases in maxJOURNAL/masis/beta/00005756-197300510-00005/ENTITY_OV0312/v/2016-08-16T100014Z/r/image-pngO2, (ml/kg-min) were significant only for Groups S and M. There were no significant differences among groups before or after training. A significant (p < .05) relationship was found between the change in maxJOURNAL/masis/beta/00005756-197300510-00005/ENTITY_OV0312/v/2016-08-16T100014Z/r/image-pngO2 and training intensity indicating that intensity rather than distance is the more important factor in improving maxJOURNAL/masis/beta/00005756-197300510-00005/ENTITY_OV0312/v/2016-08-16T100014Z/r/image-pngO2. It is proposed that differences in training intensities were due mainly to differences in tissue hypoxia, and that such a relationship is based on proportional differences in the oxidative capacity of skeletal muscle caused by the hypoxic stimulus.
Abstract The effects of breathing 100% oxygen on resting, exercise, and recovery oxygen consumptions, pulmonary ventilation volumes, and heart rates were observed on six highly conditioned male athletes. The subjects rode a bicycle ergometer at a heavy work load for five minutes, breathing either normal air or medical oxygen. Ventilation volumes were determined by the open-circuit Douglas bag method, measuring inspired and expired volumes. Gas samples were analyzed for nitrogen and oxygen concentrations on Van Slyke and Beckman gas analyzers, and heart rates were recorded via a telemetry-electrocardiograph system. The results indicated a substantial increase in resting oxygen consumption, a decrease in resting ventilation volume, a marked decline in exercise and recovery ventilation volumes, and an insignificant lowering of the energy cost of exercise during the oxygen experiments. No appreciable differences were noted in heart rates between the oxygen and air experiments.
'%3e%3cpath fill='%23012169' d='M0 0v30h60V0z'/%3e%3cpath stroke='%23fff' stroke-width='6' d='m0 0 60 30m0-30L0 30'/%3e%3cpath stroke='%23C8102E' stroke-width='4' d='m0 0 60 30m0-30L0 30' clip-path='url(%23b)'/%3e%3cpath stroke='%23fff' stroke-width='10' d='M30 0v30M0 15h60'/%3e%3cpath stroke='%23C8102E' stroke-width='6' d='M30 0v30M0 15h60'/%3e%3c/g%3e%3c/svg%3e)
