A surprisingly attractive couple
نویسندگان
چکیده
منابع مشابه
A surprisingly simple de Bruijn sequence construction
Pick any length n binary string b1b2 · · · bn and remove the first bit b1. If b2b3 · · · bn1 is a necklace then append the complement of b1 to the end of the remaining string; otherwise append b1. By repeating this process, eventually all 2 binary strings will be visited cyclically. This shift rule leads to a new de Bruijn sequence construction that can be generated in O(1)-amortized time per b...
متن کاملFancy a gene? A surprisingly complex evolutionary history of peroxiredoxins.
While the phylum Apicomplexa includes "only" several thousand described species of obligatory parasites of animals, it may in fact be the most specious group of parasitic protists with over a million species 1. The best known representatives are Plasmodium spp., Toxoplasma gondii and Cryptosporidium spp., which belong to the most important and widespread human parasites exacting an enormous dis...
متن کاملErectile dysfunction: a couple problem.
©FFPRHC J Fam Plann Reprod Health Care 2007: 33(1) Background It used to be called ‘impotence’: a double-edged label, with its implication not only that the man is unable to persuade blood into his penis, but also that he’s powerless in sexual situations, in the relationship arena, and in life. The word was never just a medical description; it always held undertones of accusation – a word to be...
متن کاملFacile solvolysis of a surprisingly twisted tertiary amide
A bicyclo[2.2.2]octane derivative containing both a tertiary amide and a methyl ester (1) was shown crystallographically to adopt a conformation in which the amide is in the cis configuration, which is sterically disfavored, but electronically favored. The steric strain induces a significant torsion (15.91) of the amide, thereby greatly increasing the solvolytic lability of the amide to the ext...
متن کاملGaze direction aftereffects are surprisingly long-lasting.
Adaptation to gaze direction induces aftereffects in the perception of gaze in subsequently presented faces. Gaze adaptation calibrates neural responses to the most frequently occurring gaze signals and therefore frees up capacity to respond to more novel signals, likely enhancing gaze discrimination and supporting novelty detection. The longevity of aftereffects can provide some insight into t...
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: Nature
سال: 1998
ISSN: 0028-0836,1476-4687
DOI: 10.1038/31340