نتایج جستجو برای: نشانگر caps
تعداد نتایج: 15848 فیلتر نتایج به سال:
This paper shows how standard arguments supporting the imposition of price caps break down in the presence of demand uncertainty. In particular, though in the deterministic case the introduction or lowering of a price cap (above marginal cost) results in increased production, increased total welfare, decreased prices, and increased consumer welfare, we show that all of the above comparative sta...
Short-term increases in ambient air pollution have been associated with an increased incidence of acute cardiac events. We assessed the effect of inhalation exposure to concentrated ambient particles (CAPs) on myocardial ischemia in a canine model of coronary artery occlusion. Six mongrel dogs underwent thoracotomy for implantation of a vascular occluder around the left anterior descending coro...
Electroencephalography (EEG) is a common neuroscience technique that is more accessible to undergraduate programs than expensive techniques such as fMRI and single-cell recording. The use of EEG can provide undergraduates with firsthand neuroscience research experience without taking too many financial resources away from a program. There are multiple types of EEG equipment that can be used, in...
In vitro studies suggest that reactive oxygen species contribute to the cardiopulmonary toxicity of particulate air pollution. To evaluate the ability of particulate air pollution to promote oxidative stress and tissue damage in vivo, we studied a rat model of short-term exposure to concentrated ambient particles (CAPs). We exposed adult Sprague-Dawley rats to either CAPs aerosols (group 1; ave...
BACKGROUND Human controlled-exposure studies have assessed the impact of ambient fine particulate matter on cardiac autonomic function measured by heart rate variability (HRV), but whether these effects are modified by concomitant ozone exposure remains unknown. OBJECTIVE In this study we assessed the impact of O(3) and particulate matter exposure on HRV in humans. METHODS In a crossover de...
In a geometry, a maximal cap is a collection of points of largest size no three of which are collinear. In AG(4, 3), maximal caps contain 20 points; the 81 points of AG(4, 3) can be partitioned into 4 mutually disjoint maximal caps together with a single point P , where every pair of points that makes a line with P lies entirely inside one of those caps. The caps in a partition can be paired up...
Imposing caps on managers’ pay has been a popular way to discipline managers of companies or banks that got into trouble during the recent financial crisis. Using a small extension of the standard principal-agent model, we argue that pay caps may serve the opposite purpose because the agent can be better off with a pay cap. Specifically, we show that, given a fixed effort level to be implemente...
Headley DB, DeLucca MV, Haufler D, Paré D. Incorporating 3D-printing technology in the design of head-caps and electrode drives for recording neurons in multiple brain regions. J Neurophysiol 113: 2721–2732, 2015. First published February 4, 2015; doi:10.1152/jn.00955.2014.—Recent advances in recording and computing hardware have enabled laboratories to record the electrical activity of multipl...
Introduction: The martian polar caps are in majority composed of CO2 ice [1-3]. Early modeling of the polar caps suggested that they were in equilibrium with the ~6 mbar CO2 atmosphere [2], and various observations have shown a ciclicity of growth and retreat, following martian seasons [4]. However, other studies show that CO2 ice constitutes only a thin veneer on the surface of a probably much...
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