Báo cáo khoa học: Is there more to aging than mitochondrial DNA and reactive oxygen species? pot

... compilation ª 2009 FEBS REVIEW ARTICLE Is there more to aging than mitochondrial DNA and reactive oxygen species? Mikhail F. Alexeyev 1,2 1 Department of Cell Biology and Neuroscience, University of ... is Keywords antioxidants; lifespan extension; mitochondria; mitochondrial DNA degradation; mitochondrial DNA mutations; mitochondrial DNA repair; mitoc...

Ngày tải lên: 29/03/2014, 22:21

... automated poetry comprehension device fails to meet this criterion. 2. The task should be computationally tractable and grounded in an external validation test. Interfaces to as yet non-existent ... equally fundamental issue: What action should the system take? Should Smith be deleted from sales and added to marketing (and vice versa for Jones)? Or, should Smith and Jones...

Ngày tải lên: 21/02/2014, 20:20

... a risk factor for atherosclerosis and liver fibrosis, the regulation of FSAP activity is of major importance. FSAP is activated by an auto-catalytic mechanism, which is amplified by heparin. To ... leads to auto-catalytic activa- tion [4,5], followed by auto-proteolysis. This propen- sity to partial proteolysis has been used to determine the domain responsible for binding to h...

Ngày tải lên: 07/03/2014, 02:20

... of dictio- naries is expected to make our joint model more ro- bust and enables us to investigate the contribution of the syntactic dependency in a more realistic setting. Therefore, we optionally ... SegTagDep takes a few times longer to achieve accuracies comparable to those of SegTag+Dep/TagDep, it seems to present potential 7 This is consistent with Hatori et al. (2011...

Ngày tải lên: 07/03/2014, 18:20

... mistaken for these markers (Darwish and Oard, 2002). Alternatively, these markers in handwritten text may be too small, light or closely-spaced to readily distinguish, caus- ing the system to ... in the N- best list that the word appears in to the total number of hypotheses. These numbers are calculated using the original N-best hypothesis list, before the data is trimmed to H={1,...

Ngày tải lên: 17/03/2014, 00:20

... one is retained. For cross-language IR between Korean and English, i.e. between Korean queries and English documents, an easy way to handle query , translation is to use a Korean-English ... scheme is to give a large weight to the best candidate and divide the remaining quantity to assign equal weights to the rest of the candidates. In other words, the weight fo...

Ngày tải lên: 17/03/2014, 07:20

... terminals (lexical items), VN is a finite set of nonterminals (atomic categories), S is a distinguished member of VN, f is a function that maps elements of VT U {e} to finite subsets of C(VN), ... i _< .} Although there is no type-raising rule, its effect can be achieved to a limited extent since f can assign type-raised categories to lexical items, which is...

Ngày tải lên: 17/03/2014, 20:20

... because he is probably not referring to a partic- ular tomato, but to whatever tomato fits his description. However, it is conceivable that he had a particular tomato in mind, and chose that ... Nadathur and Josh| (1983) adopt a s(rat%oS" that amounts to assuming that if D is believed to apply to R. then it is also mutually believed to apply to R unless th...

Ngày tải lên: 21/02/2014, 20:20

... (the annotator has answered ‘yes’ to the third question) and n LeftHandEntailed is the number of sentences where the left-hand relation is entailed (the annotator has answered ‘yes’ to the first ... context of the verb is far more telling than the left one (potentially, objects are more important than subjects). This is in line with results reported by Alfonseca and Man...

Ngày tải lên: 08/03/2014, 21:20

... restriction sites for XhoIandAvrII introduced to be able to subclone the cDNA into the P. pastoris expression vector pPIC9. The cDNA was introduced between the 5¢ promoter and 3¢ terminator of the alcohol ... SacIandXhoI, T4 DNA ligase, Taq polymerase, deoxynucleotide stocks and N-gly- cosidase F were purchased from Roche. Salts and media for E. coli and P. pastoris growth were...

Ngày tải lên: 17/03/2014, 03:20