báo cáo khoa học: "Speciation burst hypothesis : an explanation for the variation in rates of phenotypic evolution" pps

... burst hypothesis : an explanation for the variation in rates of phenotypic evolution S.C. TSAKAS* J.R. DAVID* * Department of Genetics, Agricultural College of Athens, Athenr, ... show any significant fluctuation in its evolutionary rate for the past 300 Myr but remains in stasis ; and the same explanations may hold for anothe...

Ngày tải lên: 09/08/2014, 22:22

... near the N- and C-termini of the linkers: this suggests that a mobile connection with both the catalytic domain and the binding module is required for the function of the nanomachine. Furthermore, ... restrict the available dihedral angles between the participating Table 1. Amino acid frequencies (%) in a-amylase linkers, in a set of globular proteins, in the S...

Ngày tải lên: 14/02/2014, 18:20

... blotting of extracts of Arthrobacter nicotinovorans pAO1 grow n in the presence (lane 1) and in the absence (lane 2) of nicotine, as described in the Experimental procedures. Lane 3, 1 lg of purified ... 0.51. The red anionic flavin semiquinone was formed for more than 99% during the reaction, indicating that the redox potentials of the two couples (oxidized/semi...

Ngày tải lên: 19/02/2014, 16:20

... generates a new hypothesis, we run the algo- rithm shown in Fig. 5. The inputs are a translation hypothesis e I 1 , an index n distinguishing the prefix from the attachment, and a flag indicating ... tagging, and scor- ing models into a self-contained component in the translation decoder. 3 Inference during Translation Decoding Scoring the agreement model as part of trans...

Ngày tải lên: 16/03/2014, 19:20

... can insert into the membrane, helix-breaking glycine or proline residues are often present in the middle of the hydrophobic stretch. Unlooping of this hairpin might result in the insertion of ... peptide can be divided into three distinct domains; the N-, H-, and C-domains [5,6]. The N-domain interacts with the translocation machinery and the negatively charged phosp...

Ngày tải lên: 16/03/2014, 22:20

... is indeed sufficient for the interac- tion. Aegyptin binds with low affinity to GPVI and integrin a2b1 binding sites in collagen Sequences involved in collagen interaction with GPVI and integrin ... was detectable for collagen (lower right panel). Aegyptin binds with high affinity to the vWF binding site in collagen, independently of hydroxyproline In an attempt to identify...

Ngày tải lên: 22/03/2014, 21:20

... [61]. Therefore, SR proteins, together with other RNA-binding proteins, coordinate the coupling of splicing and polyadenylation. SR proteins participate in viral protein translation SR proteins ... modifies the activity of the core protein in hepatoma remains an interesting question. HPV E1^E4 protein interacts with SRPK1 The HPV E1^E4 protein is highly expressed in epithe-...

Ngày tải lên: 23/03/2014, 06:20

... hypergraphs and lattices. In Proceedings of the Joint Conference of the 47th Annual Meeting of the Association for Computational Linguistics and the 4th International Joint Conference on Natural Language ... Byrne. 2004. Minimum Bayes-risk decoding for statistical machine trans- lation. In Proceedings of Human Language Tech- nologies: The 2004 Annual Conference of...

Ngày tải lên: 23/03/2014, 16:20

... morphological analyzer for Levantine currently, the before-files are the result of running the MSA Buckwalter analyzer on the Levantine to- ken, with many of the analyses incorrect, and only the analysis ... higher, and that we can further improve them by adding more rules and knowledge to MAGEAD. 8.5 Quantitative and Qualitative Analysis: Levantine For the Levantine, we...

Ngày tải lên: 23/03/2014, 18:20

... phrases. Haji-Abdolhosseini (2003) extended Klein’s ap- proach. Rather than referring to syntax, Haji- Abdolhosseini sets the information domain to in- teract between the syntactic-semantic domain and the prosodic ... prosodic information. The FET structure of the word “Kim” is shown in figure 8. Figure 8: FET structure of the word “Kim” 4.3 Modifying Prosody for Synth...

Ngày tải lên: 23/03/2014, 18:20