báo cáo khoa học: "A nano-view of West Nile virus-induced cellular changes during infection" pps

... three different type of expression as up-regulation of MT-2A, down-reg ulati on of MT-1A and MT-1G transcripts. Expressi on of the MT-3 isoform h as been reported in the tubules of nor- mal kidney ... control the cellular zinc distri- bution as a function of the cellular energy state [2]. A review of report have proved that the anti oxidant prop- erty of MT enhances in pre...

Ngày tải lên: 09/08/2014, 01:24

... that expression of miR-27 resulted in blockade of expression of PPARc and C ⁄ EBPa, the two master regulators of adipogenesis. Importantly, expression of miR-27 was increased in fat tissue of obese ... adipogenic differentiation of mouse 3T3-L1 preadipocytes in the absence of adipogenic hormones. A moderate increase in miR-143 has also been found during the late stage (‡ 7 d...

Ngày tải lên: 18/02/2014, 08:20

... number of times term i occurs in D, idf i is the inverse document frequency of term i, N is the total number of documents and df i is the number of documents that contain term i. The utilization of ... per- formance of the former tend to be superior to that of the latter (Mullen and Collier, 2004; Lin and He, 2009). One of the main issues for supervised approaches has been the...

Ngày tải lên: 20/02/2014, 04:20

... em- ploying each of these parsing alternatives? Each of these four questions is addressed in the four subsequent sections of this paper, fol- lowed by a discussion of the implications of our findings ... difficult research problems. Just as the Penn Treebank offers the possibility of developing systems capable of accurate syntactic parsing, corpora of semantic role anno...

Ngày tải lên: 20/02/2014, 12:20

... gcel-pursuin~ planner, end the use of dynamic models of speaker and hearer to shape the text to the task at hand. STATEMENT OF THE PROBLEM The task of KDS is to generate English text ... vlz: ordering among sentences and the scope of each, quality comparisons between alternative 8~regations of sub-sententJal units, the coordination of communication with non-linguistic...

Ngày tải lên: 21/02/2014, 20:20

... f'mite set of symbols, so there is only a finite number of strings of given length L, and it has a finite number of rules, so there is only a finite number of possible parse trees of given depth ... representation for the set of pairs of ground terms [A,B] such that (A > B) is a rule in the ground grammar of G'. Clearly this representation is just the set...

Ngày tải lên: 21/02/2014, 20:20

... im- pression of the lexical and syntactic ambiguity of the respective grammars 4 The German and Japanese corpora and half of the English corpus consist of transliterations of spoken dialogues ... fit in with the intuitions of the grammar-writers. In particular, some of the paths are very long (of length ten or more). Optimal sets of paths for grammars of this complex...

Ngày tải lên: 08/03/2014, 06:20

... the number of structures that can be built for a sentence pair of size n. ITGs explore almost all of permutation space when n is small, but their coverage of permutation space falls off quickly ... also the number of possi- ble permutations of the n tokens in either one of the two sentences. Permutation space en- forces the one-to-one constraint, but allows any re- ordering of...

Ngày tải lên: 08/03/2014, 21:20

... The principle of bottom-up parsing is to reduce a sequence of phrases whose types match the right- hand side of a grammar rule to a phrase of the type of the left-hand side of the rule. To ... measure of the amount of work done at each vertex by the procedure which implements ~the fundamental rule" (Thomp- son 1981:2) can be expressed as the product of the number...

Ngày tải lên: 09/03/2014, 01:20

... an altered level of miRNA production is a defining trait of tumorigenesis [16,17]. While the production of some miRNAs is universally altered in tumors, more often unique patterns of miRNA production ... Foundation (AT). SAW is the Samuel M. V. Hamilton Endowed Professor of Thomas Jefferson University. AT is the Marriott Family Professor of Cardiovascular Research at the Mayo Clini...

Ngày tải lên: 16/03/2014, 01:20