Báo cáo khoa học: "Ovular secretions as part of pollination mechanisms in conifer" doc

... have a diversity of pollination mechanisms that assist in the capture of pollen during pollination. Pollination mecha- nisms can be divided into a number of general types depending on whether they ... five amino acids were isolated – proline, asparagine, glutamate, alanine and serine [55]. The amino acids found in Thuja were: serine, glycine, alanine and glutamate in descen...

Ngày tải lên: 08/08/2014, 14:20

... Approach 2.1 Training generalized and domain-specific models using document frequency Consider training data as a collection of documents where each document contains sentences focusing on a similar ... 763–771. Kristina Toutanova, Dan Klein, Christopher D. Man- ning, and Yoram Singer. 2003. Feature-Rich Part- of- Speech Tagging with a Cyclic Dependency Network. In Proceedings of th...

Ngày tải lên: 19/02/2014, 19:20

... types of phrases. In chunking, the POS information is one of the most crucial aspects in identifying chunks. Especially inter-category POS errors seriously affect the performance of chunking because ... Implementation of Multiclass Kernel-based Vec- tor Machines. Journal of Machine Learning Research, Vol. 2. pp. 265–292. Dipanjan Das and Slav Petrov. 2011. Unsupervised Part- o...

Ngày tải lên: 07/03/2014, 18:20

... and three chains of core streptavidin (Fig. 3A,B). Fluores- cence quenching of tryptophan residues in the binding pockets of streptavidin confirmed that the biotin-bind- ing capacity of soluble ... allergic diseases (e.g. as carrier ⁄ adjuvants in the design of vaccines for immunotherapy of type 1 allergy). In order to generate a universal affinity matrix for binding of an...

Ngày tải lên: 16/03/2014, 12:20

... word class, not all 639. Furthermore, col- lapsing tags into word class groups increases train- ing data, allowing the model to generalize features over all tags in a class instead of learning each ... case-assignment. Data driven taggers can only learn which verbs assign special object cases by observation in the training data. Some verbs and prepositions also assign case based on the...

Ngày tải lên: 23/03/2014, 17:20

... the like- lihood of the possible stems of the open- class words. By encoding some basic lin- guistic information, the machine learning task is simplified, while achieving state- of- the-art tokenization ... expected, almost all (except 27) instances of closed-class words were seen during training. For run 2, we continue to use the stored solution if the token was seen in training. If...

Ngày tải lên: 30/03/2014, 21:20

... facilitates the initiation of apop- tosis [22]. In addition, elevated calcium levels contribute to cell invasion [23,24]. In contrast, in the case of occludin, an ER-mediated increase in intra- cellular ... analysis of the involvement of wild-type occludin (Occ WT ) and variant occludin in apoptosis and invasion, as determined by assay, we revealed that exon 9 played a maj...

Ngày tải lên: 18/02/2014, 18:20

... Australia. Minqing Hu and Bing Liu. 2004. Mining and summa- rizing customer reviews. In Proceedings of KDD, Seattle, Washington, USA, August. Dan Klein and Christopher D. Manning. 2002. Fast exact inference with ... and Ordering Finally, the generation of a coherent summary in- volves selection of the sentences to be included, and ordering them in a coherent fashion. This step has...

Ngày tải lên: 20/02/2014, 04:20

... constants of folding (k f ) and unfolding (k u ) rates. The stability of a protein therefore involves both equilibrium and kinetic aspects; increased protein sta- bility may be reflected either as slower ... slower unfolding (k u ), faster folding (k f ), or a combination of the two (Fig. 1A). In vitro folding ⁄ unfolding experiments in solution often involve chemical (i.e. urea or...

Ngày tải lên: 07/03/2014, 05:20

... regions of the protein involved in interaction with Cdk2 and cyclin A: 1, domain 1 interacting with cyclin A; 2, a linker helix involved in binding both cyclin A and Cdk2; 3, domain 2 inter- acting ... the structure of the binding partners. In many cases, these partners contained regions of intrinsic disorder. One example of an ordered hub, calmodulin, makes use of a flexible h...

Ngày tải lên: 07/03/2014, 21:20