Báo cáo khoa học: "propagation of several Betula species representing various ploidy levels" pot
Báo cáo khoa học: "propagation of several Betula species representing various ploidy levels" pot
...
irradiation-
mutant
of
Betula
pendula
Roth.
Tree
PhysioL
4,
173-179
In
vitro
propagation
of
several
Betula
species
representing
various
ploidy
levels
E. Särkilahti
Department
of
Biology ...
their
ploidy
levels
during
several
subcultures.
This
suggests
that
the
instability
of
chromo-
some
number
in
plantlets
of
the
mountain
birch
was
due
to...
Báo cáo khoa học:Propagation of mean degrees Dieter Rautenbach doc
... measures of the local irregularity of a graph in terms
of its vertex degrees and relate these measures to the order and the global irregularity
of the graph measured by the difference of its maximum ... measures of local irregularity. Again, our main results relate the order of the
graph, its global irregularity and one of these measures.
A reasonable requirement for a possible...
Báo cáo khoa học: "Impact of several common tree species of European temperate forests on soil fertility" pot
... of
foliage is dependent on tree species and site: foliage of
hardwood species usually has higher concentrations of
238 ²L. Augusto et al.
Table IV. Mean annual litterfall under various tree species ... [15].
(iv) species may increase the strength of soil acids
(lower pK; [197]).
240 ²L. Augusto et al.
Table VI. C/N ratio of litter under various tree species.
Reference...
Báo cáo khoa học: "Importance of Pronominal Anaphora resolution in Question Answering systems" pot
... INPUT L: ListOfCandidates,
OUTPUT Solution: Antecedent )
Apply restrictions to L with a result of L1
Morphologic agreement
C-command constraints
Semantic consistency
Case of:
NumberOfElements ... the same number of parsed
constituents as the anaphora
6) Candidates that have appeared with the verb of
the anaphor more than once
7) Preference for indefinite NPs.
Case of:
NumberOfEleme...
Báo cáo khoa học: "Recognition of the Coherence Relation between Te-linked Clauses" potx
... the basis of a corpus of 3,330 multi-predicate sen-
tences sampled from various types of text, Saeki (Saeki,
1975) reports a total of 26 connectives (1,047 tokens al-
together), of which te ... constituents of one
clause bear certain kind of structural relationship to
those of the other. Although there are an infinite
number of situations, there seems to be only a sm...
Báo cáo khoa học: Regulation of calpain B from Drosophila melanogaster by phosphorylation pot
... Academy of Sciences, Szeged, Hungary
4 Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Hungary
5 Department of Pharmaceutical Chemistry, University of ... the effects of phosphorylation on the proteo-
lytic activation and activity of the enzyme.
Results and discussion
Phosphorylation of calpain B in vitro
The phosphorylation of...
Báo cáo khoa học: Role of disulfide bonds in goose-type lysozyme potx
... optimization
of the positions of the hydrogen atoms using energy minimi-
zation; (c) optimization of the conformation of the side chain
using energy minimization; and (d) optimization of the posi-
tions of ... activity) of lysozyme was
assayed using lyophilized cells of M. luteus as a substrate.
One hundred microliters of lysozyme (final concentration
0.015 lm) was added to 3...
Báo cáo khoa học: Characterization of thermostable aminoacylase from hyperthermophilic archaeon Pyrococcus horikoshii pot
... the two types of
aminoacylase. The presence of excess Zn
2+
causes no
inhibition of the activity in the case of PhoACY
(Table 2), but additional Zn
2+
can inhibit the enzyme
activity of AfaACY [27].
With ... mutation
of one zinc ligand allows the local loosening of Zn
2+
and the intervention of another Zn
2+
in the metal-
binding pocket, resulting in the incorrect coordination...
Báo cáo khoa học: Activity of the plant peptide aglycin in mammalian systems potx
... N (1989) Identification of
human porins. I. Purification of a porin from human
B-lymphocytes (Porin 31HL) and the topochemical
proof of its expression on the plasmalemma of the
progenitor cell. ... treatment
of diabetes mellitus. Preliminary report. Can Med Assoc
J 12, 141–146.
3 Macleod JJR (1922) The source of insulin. A study of
the effect produced on blood sugar by extracts o...
Báo cáo khoa học: Biosynthesis of isoprenoids A bifunctional IspDF enzyme fromCampylobacter jejuni pot
... however, the similarity of the
hypothetical C. jejuni gene to ispF is higher t han the
similarity to ispD. Many residues previously shown to be
part of the catalytic sites of the IspD and IspF proteins
Fig. ... localization of ispD
and ispF genes in bacteria was performed using the
STRING database designed for a nalysis of f unctional
associations between proteins [34]. Data from t...
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