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Na+-Ca2+ exchange (NCX) current has been suggested to play a role in cardiac pacemaking, particularly in association with Ca2+ release from the sarcoplasmic reticulum (SR) that occurs just before the action potential upstroke. The present experiments explore in more detail the contribution of NCX to pacemaking. Na+-Ca2+ exchange current was inhibited by(More)
Glutamate (10-100 microM) reversibly depolarizes guinea-pig cerebral cortical synaptosomes. This does not appear to be because of a conventional autoreceptor. Neither kainate at 1 mM, 100 microM N-methyl-D-aspartate (NMDA), 100 microM L-2-amino-4-phosphonobutanoate (APB), nor 100 microM quisqualate affects the Ca2+-dependent release of glutamate from(More)
Red clover (Trifolium pratense L.) is a versatile forage crop legume, which can tolerate a variety of soils and is suitable for silage production for winter feed and for grazing. It is one of the most important forage legumes in temperate livestock agriculture. Its beneficial attributes include ability to fix nitrogen, improve soil and provide protein rich(More)
  • Rebecca Dizon-Ross, Ran Abramitzky, Abhijit Banerjee, Jim Berry, Nick Bloom, Doug Bernheim +25 others
  • 2014
Do parents' inaccurate beliefs about their children's academic skills distort investments in education? I analyze a field experiment conducted in Malawi and find that, at baseline, parents try to tailor their educational investments to their children's academic level, but their inaccurate beliefs prevent them from doing so. Providing parents with(More)
Given the limited resources of visual working memory, multiple items may be remembered as an averaged group or ensemble. As a result, local information may be ill-defined, but these ensemble representations provide accurate diagnostics of the natural world by combining gist information with item-level information held in visual working memory. Some(More)
  • Athole H Marshall, Matthew Lowe, Rosemary P Collins, Cory Matthew
  • 2015
Backcross hybrids between the important forage legume white clover (Trifolium repens L.), which is stoloniferous, and the related rhizomatous species Caucasian clover (T. ambiguum M. Bieb), have been produced using white clover as the recurrent parent. The effect of drought on the parental species and two generations of backcrosses were studied in a(More)
How and what we attend to is foundational in determining the content of our experience, thus differences in attention contribute significantly to how we perceive the world, learn, and develop. Personality also plays a role in constraining how we learn to perceive the world and it is conceivable that some facets of personality interact with visual attention;(More)
Scenes are constructed from multiple visual features, yet previous research investigating scene processing has often focused on the contributions of single features in isolation. In the real world, features rarely exist independently of one another and likely converge to inform scene identity in unique ways. Here, we utilize fMRI and pattern classification(More)
Substantive evidence has demonstrated that scene-centered global image features influence the processing of objects embedded in complex visual scenes. Conversely, a growing body of work suggests that relevant object information may inherently influence diagnostic global scene statistics used in rapid scene categorization. Here, we investigate the potential(More)
Scenes are composed of multiple visual features, yet previous research investigating scene representation has often focused on the unique contributions of single features, such as spatial layout and texture. However, these features rarely exist in isolation. As texture can provide depth and contour information necessary for spatial perception, a dynamic and(More)