Báo cáo khoa học: "THEMES FROM 1972" pot
... KLINE or of selections from the matching substitution class. Only one other program element is required: a random selection function to pseudo-randomly choose an element from a substitution class ... Slocum and I were concerned with using Augmented Transition Networks to generate coherent English from semantic networks. That llne of research was originated by the first President o...
Ngày tải lên: 08/03/2014, 18:20
... 0.1 m potassium phosphate buffer (pH 7.0). The negative control consisted of 80 lL of 0.1 m potas- sium phosphate buffer (pH 7.0) added to 120 lL FAS. The blank consisted of 200 lL of 0.1 m potassium ... natural inhibitors, the inhibi- tory potency of these peptides is within the range found for flavonoids from green tea (2.3–111.7 lm) [28,29] and tannins from Geum japonicum var. chinense...
Ngày tải lên: 06/03/2014, 09:22
... that we have investigated from cyanobacterial crude extracts (NblA1 and NblA2 from Synechocystis sp. PCC 6803) or purified in recombinant form from E. coli (NblA1 and NblA2 from Synechocystis sp. ... have cloned the gene from Anabaena sp. PCC 7120 and purified the protein without tags. We show that NblA from Anabaena sp. PCC 7120 is a mostly a-helical protein. The results from the...
Ngày tải lên: 08/03/2014, 10:20
Báo cáo khoa học: Hemitoxin, the first potassium channel toxin from the venom of the Iranian scorpion Hemiscorpius lepturus ppt
... isolated from the venom of the Scorpionidae, IsTx from the Ischnuridae, HgeTx1 from the Caraboctonidae, and anuroctoxin from the Chacti- dae. Therefore, HTX was the first example of such a peptide from ... MTX was from S. maurus [10]; Pi1, Pi4 and Pi7 were purified from P. imperator [9,21]; HsTx1 [22] and spinoxin (Protein Data Bank code Iv56A [25]) was from He. spinnifer; OcKTx...
Ngày tải lên: 16/03/2014, 06:20
Báo cáo khoa học: Bistability from double phosphorylation in signal transduction Kinetic and structural requirements potx
... maximum value of e T1 ⁄ e T2 is achieved, before the flux passes to cycle 2. Conversely, if we start from e T1 >> e T2 (a ¼ 0) the major flux is in cycle 2 until the minimum value of e T1 ⁄ e T2 is ... 6A,D), before the flux pas- ses to cycle 1. In these two cases, the control of the flux passes roughly from one cycle to the other when a crit- ical value of v 14 is achieved. The identifi...
Ngày tải lên: 16/03/2014, 13:20
Báo cáo khoa học: Something from nothing ) bridging the gap between constraint-based and kinetic modelling pot
... al. [14], available in SBML format from JWS Online [19]. Taking the mod- el’s steady state as our reference state, elasticities may be calculated analytically from the kinetic equations using Eqn ... Journal 274 (2007) 5576–5585 ª 2007 The Authors Journal compilation ª 2007 FEBS 5585 Something from nothing ) bridging the gap between constraint-based and kinetic modelling Kieran Smallbon...
Ngày tải lên: 23/03/2014, 07:20
Báo cáo khoa học: dehydrogenase from Arabidopsis thaliana, a flavoprotein involved in vitamin C biosynthesis pot
... from the mitochondria of a number of plants, including cauliflower [20], sweet potato [12,21], spinach [22] and tobacco [14]. GALDH from cauliflower was expressed in yeast [13] and the enzyme from ... cleavage site is present in the sequences of GALDH from cauliflower, sweet potato and tobacco [13,14,21]. N-terminal sequence analysis of GALDH isolated from cauliflower mitochondria showe...
Ngày tải lên: 23/03/2014, 07:20
Báo cáo khoa học: "Learning from evolving data streams: online triage of bug reports" potx
... has received relatively little atten- tion from the text-mining community. We investigate the problems inherent in learn- ing to triage bug reports from time-varying data. We demonstrate that ... a special challenge from the machine- learning point of view. 613 1.3 Concept drift Many standard supervised approaches in machine-learning assume a stationary distribution from which trainin...
Ngày tải lên: 24/03/2014, 03:20
Báo cáo khoa học: Polyphosphates from Mycobacterium bovis – potent inhibitors of class III adenylate cyclases pptx
... (2009) 1094–1103 ª 2009 The Authors Journal compilation ª 2009 FEBS 1103 Polyphosphates from Mycobacterium bovis – potent inhibitors of class III adenylate cyclases Ying Lan Guo 1 , Hermann Mayer 2 , ... which contains by far the most AC isozymes. Among these are all cyclases from eukaryotes and the overwhelming majority of those from bacteria [1]. In eukaryotic cells, ACs are typically...
Ngày tải lên: 30/03/2014, 02:20
Báo cáo khoa học: "Learning From Collective Human Behavior to Introduce Diversity in Lexical Choice" potx
... of 25 clusters of news headlines collected from Google News 2 , and the citations datasets have 25 clusters of citations to specific scientific papers from the ACL Anthology Network (AAN) 3 . Each cluster ... us- ing the factoids from all 25 clusters in each cate- gory 7 . Each experiment is repeated 1, 000 times to find the statistical significance of the experiment and the variation from...
Ngày tải lên: 30/03/2014, 21:20