Are there more than two self-incompatibility loci in the grasses?
نویسندگان
چکیده
منابع مشابه
There are no Barker arrays having more than two dimensions
Davis, Jedwab and Smith recently proved that there are no 2-dimensional Barker arrays except of size 2×2. We show that the existence of a (d+1)-dimensional Barker array implies the existence of a d-dimensional Barker array with the same number of ±1 elements. We deduce that there are no Barker arrays having more than two dimensions, as conjectured by Dymond in 1992.
متن کاملThere Are More Valence Alternations than the Ditransitive
Recent research has witnessed a growing interest in determining how much usage frequency explains language patterns and language processing (Bybee, 2006; Pierrehumbert, 2001; Jurafsky, 2002). This paper focuses on the degree to which the relative frequency of verbs in syntactic frames (or valence alternations) may explain the acquisition of these frames (or these alternations). Valence alternat...
متن کاملTwo Languages Are More Informative Than One
This paper presents a new approach for resolving lexical ambiguities in one language using statistical data on lexical relations in another language. This approach exploits the differences between mappings of words to senses in different languages. We concentrate on the problem of target word selection in machine translation, for which the approach is directly applicable, and employ a statistic...
متن کاملThere are more strategy-proof procedures than you think
With as few as eight individuals and five alternatives, there are 561, 304, 372, 286, 875, 579, 077, 983 strategy-proof social choice rules. © 2012 Elsevier B.V. All rights reserved. The Gibbard–Satterthwaite theorem, now almost 30 years old, has become a staple of microeconomic theory, social choice theory, and mechanism design (Gibbard, 1973; Satterthwaite, 1975). Everyone understands that th...
متن کاملAre There More Than Minimal A Priori Constraints on Irrationality?
Our concern in this paper is with the question of how irrational an intentional agent can be, and, in particular, with an argument Stephen Stich has given for the claim that there are only very minimal a priori requirements on the rationality of intentional agents. The argument appears in chapter 2 of The Fragmentation of Reason. 1 Stich is concerned there with the prospects for the 'reform-min...
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: Heredity
سال: 1984
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1984.32