Mirror Symmetry for Calabi-Yau hypersurfaces in toric varieties is by now well established. However, previous approaches to it did not uncover the underlying reason for mirror varieties to be mirror. We are able to calculate explicitly vertex algebras that correspond to holomorphic parts of A and B models of Calabi-Yau hypersurfaces and complete intersections in toric varieties. We establish th...

This paper presents a speaker adaptation framework that combines the speaker normalization (SN) training. Because of the varieties among training speakers, more data are required in training and adaptation of speaker independent (SI) acoustic model. In this paper, a very simple but effective normalization method is presented, in which the distortions among different speakers are removed by subt...

common wheat, triticum aestivum l. is of the greatest importance among the few crop plants that are grown extensively and for food in iran. among the reported wheat's pests, greenbug schizaphis graminum (rondani) causes severe damage to the crop. because of the adaptation of the aphid to different wheat varieties being varied, this study was designed to focus on the effect of some common w...

Due to the remarkable adaptability to various environments, rice varieties with diverse flowering times have been domesticated or improved from Oryza rufipogon. Detailed knowledge of the genetic factors controlling flowering time will facilitate understanding the adaptation mechanism in cultivated rice and enable breeders to design appropriate genotypes for distinct preferences. In this study, ...

To understand the success of invasive species, it is important to know whether colonization events are facilitated by adaptive evolution or are limited to sites where a species is pre-adapted to thrive. Studies of the ancient colonization patterns of an invader in its native range provide an opportunity to examine its natural history of adaptation and colonization. This study uses molecular (in...

This paper describes our work in digital talking book alignment, starting by our earlier efforts for the alignment of books in European Portuguese, and ending with the two challenges we are currently facing of aligning books in different varieties of Portuguese and aligning parallel books in different languages. Our alignment module proved robust enough for porting to other varieties of Portugu...

Today in the world of English language teaching and learning, EIL(English as an international language) has been gradually preferred, instead of the traditional ESL(English as a second language) or EFL(English as a foreign language). It is believed that non-native English varieties developed worldwide should be as important as the native English varieties and it is rational for decision-makers ...

Farmer adaptation to climatic variability is explored via an analysis of corn hybrid selection in southern Ontario. Corn hybrid varieties are available for a wide range of conditions, including accumulated heat, measured as Corn Heat Units (CHUS). Hybrids with higher CHU ratings generally have higher yields, so long as there is sufficient heat for them to mature. Farmers choose their hybrid var...

There are by now several attempts to make the theory of the field of one element F1 rigorous. In [10] the authors formalize the transition from rings to schemes on a categorial level and apply this machinery to the category of sets to obtain the category of F1-schemes as in [1]. In [3] and [5] the authors extend the definition of rings in order to capture a structure that deserves to be called ...

In an earlier work, we showed that if the Hodge conjecture holds for all complex abelian varieties of CM-type, then the Tate conjecture holds for all abelian varieties over finite fields (Milne 1999b). In this article, we extract from the proof a statement (Theorem 1.1) that sometimes allows one to deduce the Tate conjecture for the powers of a single abelian variety A over a finite field from ...