Two Plus Two Equals Five
نویسندگان
چکیده
منابع مشابه
Vision: Two Plus Four Equals Six
Using two UV-sensitive visual pigments and the UV-filtering properties of four mycosporine-like amino acids, mantis shrimp create six spectrally distinct UV receptors. This is yet another example of the unique ways in which mantis shrimp have adapted to extract information from their visual world.
متن کاملOne sequence plus one mutation equals two folds.
I n this issue of PNAS, Alexander et al. (1) report an observation that will be a topic of heated discussion among biochemists for a long time to come. A single amino acid substitution can, in the right context, completely change the fold of a protein. And the structural change produced by this one mutation cannot be dismissed as a semantic issue over what constitutes a different fold. As shown...
متن کاملTwo plus Two Equals Six: an Alternative Explanation of Why so Many Goods Prices End in Nine
The prevalence of prices ending in 99 cents is explained as the result of rational consumers rounding prices up. Monopolists are shown to be harmed by this practice whereas consumers may gain. The model is compared with two other models: Basu’s (1997) model and one which assumes consumers round prices down. Corresponding author: Nigel W. Duck University of Bristol E-mail: [email protected] Te...
متن کاملTwo plus blue equals green: grapheme-color synesthesia allows cognitive access to numerical information via color.
In grapheme-color synesthesia, graphemes (e.g., numbers or letters) evoke color experiences. It is generally reported that the opposite is not true: colors will not generate experiences of graphemes or their associated information. However, recent research has provided evidence that colors can implicitly elicit symbolic representations of associated graphemes. Here, we examine if these represen...
متن کاملSymmetric Planar Central Configurations of Five Bodies: Euler plus Two
We study planar central configurations of the five-body problem where three of the bodies are collinear, forming an Euler central configuration of the three-body problem, and the two other bodies together with the collinear configuration are in the same plane. The problem considered here assumes certain symmetries. From the three bodies in the collinear configuration, the two bodies at the extr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1990
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.247.4949.1381