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...

1 School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031, P.R. China [email protected], [email protected], [email protected] 2 Department of Computer Science, The University of Sheffield Regent Court, Portobello Street, Sheffield, S1 4DP, UK [email protected] 3 Department of Computer Science and Mathematics, University of Pitesti, Romania florentin.ipate@ifsof...

The whole-genome sequence of beak and feather disease virus (BFDV) from a wild Australian regent parrot (Polytelis anthopeplus monarchoides) was characterized. The genome consists of 1,993 bp and has a typical stem-loop structure between open reading frame 1 (ORF1) and ORF2. This is the first evidence of BFDV infection as well as the complete genome sequence for this host species, globally.

The chicken growth hormone gene of intron I region from three varieties of Kadaknath breed of poultry was amplified by PCR and a 770 bp product was obtained. The products from each variety (Jet black, Golden and Pencilled) were digested with Msp I (5 U), which recognizes the 5′-C ↓ C G G-3′ sequence. The RFLP pattern revealed restriction fragments of 529, 373, 241 and 156 bp sizes, which indica...

Sorghum vegetative tissues are becoming increasingly important for biofuel production. The composition of sorghum stem tissues is influenced by genotype, environment and photoperiod sensitivity, and varies widely between varieties and also between different stem tissues (outer rind vs inner pith). Here, the amount of cellulose, (1,3;1,4)-β-glucan, arabinose and xylose in the stems of twelve div...

in order reaching to occurate water regime in the condition of minimum tillage and its effect on the yield and yield component physiological index of rice varieties, a experiment had carried out the agronomey year of 2006-2007 in the research field of shavour station. the experiment had carried out in split-plot design some randomized complete block with three replication that contains three wa...

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 ...