OvaCheck: doubts voiced soon after publication
نویسندگان
چکیده
منابع مشابه
Testing Soon After Myocardial Infarction
men completed a heart-rate-limited (HRL) protocol and 107 completed a symptom-limited (SXL) protocol 3 weeks after the acute event. In the HRL protocol, effort terminated at a heart rate of 130 beats/min in the absence of a limiting symptom, exertional hypotension or ventricular tachycardia. Peak heart rate was not an end point in the SXL protocol. Despite a higher peak heart rate and work load...
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Two decades ago, exercise testing “soon after acute myocardial infarction” meant that stress testing was performed 3 weeks after the acute event.1 It was conventional wisdom that patients recovering from acute myocardial infarction should avoid physical activities exceeding a workload of 3 METs for some time.2 Formal physical rehabilitation was not commenced before 10 weeks after infarction. In...
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Forty-six men under age 70, without clinical congestive heart failure or unstable angina pectoris, performed treadmill tests 3, 5, 7, 9 and 11 weeks after myocardial infarction. Patients were more frequently able to perform moderate exertion (2 mph, 14% grade) at 7 and 11 weeks than at 3 weeks following infarction. Ischemic ST-segment depression, usually unaccompained by angina pectoris, occurr...
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According to reductionism, every complex phenomenon can and should be explained in terms of the simplest possible entities and mechanisms. The parts determine the whole. This approach has been an outstanding success in science, but this essay will point out ways in which it could nevertheless be giving us wrong ideas and holding back progress. For example, it may be impossible to understand key...
متن کاملDoubts , Asymmetries , and Insurance ∗
This paper studies an insurance problem where agents doubt their forecasting models. Using Hansen-Sargent multiplier preferences, these doubts are represented as sets of probability distributions that are statistically hard to discriminate. Agents differ endogenously in two aspects their forecasting models and the extent of doubts surrounding these models. This heterogeneity gives rise to a new...
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ژورنال
عنوان ژورنال: Nature
سال: 2004
ISSN: 0028-0836,1476-4679
DOI: 10.1038/430611c