منابع مشابه
When Is More Not Better?
It is often assumed that when sensing in autonomous robot navigation, the more measurements taken, the better. In many cases, this is indeed true. However, we have found that in an outdoor, unstructured environment where the number of possible measurements one can take is limited and error is not normally distributed, additional measurements may cause more harm than good. These “rogue” measurem...
متن کاملInduced sputum: not only for research but also for better patient management in asthma and COPD.
It has been now twenty years since the first description of induced sputum as a research application in asthma [1, 2]. Since then the research application of this technique has really exploded giving rise to an impressive number of publications in the field of asthma and COPD. Overall it is fair to say that asthma is rather an eosinophilic airway disease while COPD patients usually exhibit a ma...
متن کامل[Budgetary blues: more is not always better].
Después de años de un continuado crecimiento muy por encima el de nuestro producto interior bruto, el gasto sanitario empieza mostrar inequívocamente su frenada. Las alegrías de su pasado umento se tornan en tristeza y decaimiento, con una verosímil endencia a ir a menos. Es comprensible que la situación no suscite legría, pero no deja de extrañar la generalizada preocupación por l «mal color» ...
متن کاملContact precautions: more is not necessarily better.
OBJECTIVE To determine whether increases in contact isolation precautions are associated with decreased adherence to isolation practices among healthcare workers (HCWs). DESIGN Prospective cohort study from February 2009 to October 2009. SETTING Eleven teaching hospitals. PARTICIPANTS HCWs. METHODS One thousand thirteen observations conducted on HCWs. Additional data included the number...
متن کاملThe expanding world of extracellular traps: not only neutrophils but much more
The release of extracellular traps (ETs) is a recently described mechanism of innate immune response to infection. Although ETs have been intensely investigated in the context of neutrophil antimicrobial effector mechanisms, other immune cells such as mast cells, eosinophils, and macrophages can also release these structures. The different ETs have several features in common, regardless of the ...
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 1962
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v040n006.p007