نتایج جستجو برای: despite having no accurate instruments

تعداد نتایج: 3843658  

Journal: :Discrete Applied Mathematics 2016

Journal: :Bulletin of the American Mathematical Society 1931

Journal: :Transactions of the Society of Instrument and Control Engineers 1983

Journal: :Journal of Combinatorial Theory, Series B 2004

2010
Kathleen Y Wolin Casey Fagin Nneka Ufere Hallie Tuchman Gary G Bennett

BACKGROUND Physical activity self-report instruments in the US have largely been developed for and validated in White samples. Despite calls to validate existing instruments in more diverse samples, relatively few instruments have been validated in US Blacks. Emerging evidence suggests that these instruments may have differential validity in Black populations. PURPOSE This report reviews and ...

2010
Franck Verschuren Arnaud Perrier

Capnography has been studied for decades as a potential diagnostic tool for suspected pulmonary embolism. Despite technological refinements and its combination with other non-invasive instruments, no evidence to date allows recommending the use of expired carbon dioxide measurement as a rule-out test for pulmonary embolism without additional radiological testing. Further investigations are, how...

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