... with eliminating terms from a
conventional statistical engine, combining this
technique with the standard method of
eliminating high frequency index terms Rather
than eliminating terms from ... document index
with a second index that contains linguistically-
informed terms. Two types of terms are stored in
this linguistic index:
1. LF triples. These are subgra...
... width is 2.195m,
minimal is 88cm.
• Average: Estimated avg. car width is 1.7m.
• Direct/indirect comparisons: Toyota Corolla
is wider than Toyota Corona.
• Distribution: Car width is distributed ... can add terms appearing in
the question and having a strong PMI with the ob-
ject (this can be estimated using any fixed corpus).
However, this is not essential.
We then extract new...
... char-
acteristics. Second one is likely that the long-
distance dependency and sparseness problem de-
grade the performance of adverbials greatly. This
can be viewed from the statistics in Table ... which
is the percentage of chunks in the data that are
found by the tagger; and F-score which is equal to
2×precision×recall/(precision+recall). Un-
der the “IOB” tagging scheme, a functio...
... its Ap-
plications, Issue 2, pp. 224–242.
Chris Callison-Burch. 2008. Syntactic Constraints
on Paraphrases Extracted from Parallel Corpora.
Proc. EMNLP, pp. 196–205.
Chris Callison-Burch, Cameron ... s
) is greater
than some threshold σ (see Section 4.1). If two
phrases that satisfy condition (b) and have trans-
lations in more than one common target cluster,
a distinct such edge is e...
... cd
1
(His200) is conserved in
NirF (His41); this conservation applies to all other
NirF sequences known in the database (Fig. S2). How-
ever, the other catalytic site histidines (His 345 and
His388) ... not
shown). His200 of P. pantotrophus NirS is conserved
between NirF and NirS; it is the His residue that in
NirS is the proximal axial ligand to the d
1
heme.
Replacement of an equiva...
... not inhibit the catalysis of
disulfide bond formation and isomerization by PDI
PDI is a catalyst of thiol–disulfide exchange reactions,
including oxidation, reduction and isomerization [1].
The ... Morrison TG (2007)
Thiol ⁄ disulfide exchange is required for membrane
fusion directed by the newcastle disease virus fusion
protein. J Virol 81, 2328–2339.
13 Orlandi PA (1997) Protein-disulfide i...
... thus their
expression in H. perforatum tissues could not be distin-
guished from each other, the general name HpPKS2 is
used in this study.
Phylogenetic analysis
The overall similarity of the deduced ... the
nodular structures is considered to have evolved as a
mechanism for the plant to avoid the potential auto-
toxicity of these compounds [19].
The biosynthesis of hypericins is curr...
... protein function. A particular aspect that is special to the
BioMillenium series of conferences (this has been the 10th in this series) is
the emphasis on new and emerging technologies; the various ... cell
masses. Pericellular proteolysis is hence a prerequisite
for expansive tumor growth, collective invasion and
large-scale tissue reshaping. In contrast, single-cell dis-
semination as...
... B-cell
differentiation [1], visfatin, is nicotinamide phosphori-
bosyl transferase (NAMPT) [2,3], a rate-limiting
enzyme in the synthesis of NAD
+
from nicotin-
amide. Visfatin ⁄ PBEF ⁄ NAMPT is synthesized ... circulating levels of visfatin have
been observed in many inflammatory diseases such
as rheumatoid arthritis, obesity, insulin resistance
and type 2 diabetes [5–7]. Visfatin is...
... 4-acetamido-4¢-maleim-
idylstilbene-2,2¢-disulfonic acid disodium salt (AMS) were
purchased from Invitrogen (Carlsbad, CA, USA). Antise-
rum against influenza haemagglutinin (HA) was obtained
from Sigma (St Louis, MO). The other antisera ... lipid
bilayer independently of the Sec machinery. This is consistent with pub-
lished data. Surprisingly, and in conflict with earlier data, YidC is...