Báo cáo khoa học: "Vulnerability to freeze stress of seedlings of Quercus ilex " docx
Báo cáo khoa học: "Vulnerability to freeze stress of seedlings of Quercus ilex " docx
...
nine
seedlings
out
of
50
survived).
In
comparison
with
unstressed
seedlings,
Kr
and
Ks
of freeze- stressed
seedlings
were
reduced
by
90
%.
Root
anatomy
of
freeze- stressed
seedlings ... freeze- stressed
seedlings
Three
increasing
levels
of
damage
to
root
cortex
parenchyma
were
identified:
Original
article
Vulnerability
to
freeze
stress
of...
Báo cáo khoa học: "Resistance to water stress in seedlings of eight European provenances of Pinus halepensis Mill" potx
... sites displayed thestrategytypicalofdrought-tolerantspe-
cies. The impactonallprovenances of oneweek of low-intensity water stress( –0.4 MPa) was slight. Asthe stress increased, the response
varied ... values of Ψ and stress- in-
duced values (except at very high levels of stress) ;
whereas in Pinus taeda and Pinus strobus the absolute
values of Ψ doubled even at low or medium...
Báo cáo khoa học: "Vulnerability to air embolism of three European species (Quercus petraea (Matt) Liebl, Q pubescens Willd, Q robur L)" docx
...
conductivity
due
to
water
stress
in
intact
juveniles
of
Quercus
rubra
and
Populus
deltoides.
Tree
Physiol
(in
press)
Zimmermann
MH
(1983)
Xylem
Structure
and
the
Ascent
of
Sap.
Springer ...
exhibits
very
different
responses
to
water
stress.
Since
1976,
a
number
of
ecological
studies
have
been
undertaken
to
determine
the
mechanisms
of
thi...
Báo cáo khoa học: "Techniques to incorporate the benefits of a Hierarchy in a modified hidden Markov model" pptx
... prob-
abilistic tool for modeling sequences of obser-
vations (Rabiner and Juang, 1986). They have
proven to be capable of assigning semantic la-
bels to tokens over a wide variety of input types.
1
The ... parts of the model to be
merged together. A merged model takes
advantage of the recurring patterns within
the hierarchy, and the clusters that exist in
some sequences of...
Báo cáo khoa học: Contributions to catalysis and potential interactions of the three catalytic domains in a contiguous trimeric creatine kinase doc
... closing. [5]. This ‘tug-
of- war’ scenario, whereby the closing of one active site
exerts pressure through a suite of atomic interactions
to inhibit the binding and closing of any other active
sites ... formation of this TSAC
somehow stabilizes the open state of the adjoining
active site or precludes binding of all components to
form a TSAC. Comparison of the two monomers
w...
Báo cáo khoa học: Methods to monitor the quaternary structure of G protein-coupled receptors doc
... pro-
tomers of a contact dimer they could reflect domain-
swap dimer interactions.
In addition to the restoration of ligand-binding,
studies that have used pairs of nonfunctional mutants
to restore ... matter of course, to alter the
details of ligand pharmacology. This is yet to be
explored in significant detail but it is certainly true
that, for example, coexpression of pai...
Báo cáo khoa học: "How to thematically segment texts by using lexical cohesion?" docx
... into thematically coherent
units. This method relies on a network of lexical
collocations to compute the thematic coherence
of the different parts of a text from the lexical
cohesiveness of ...
of the current topic at one position of the win-
dow and this representation at a further one,
it will be possible to determine how themati-
cally far two parts of a text are. T...
Báo cáo khoa học: " Seedling bank dynamics in managed holm oak (Quercus ilex) forests" docx
... available. Total seedling height
was recorded in March of each year, and the number of
leaves was recorded in the last three years, from 1995 to
1997.
To measure light availability to seedlings, ... oak (Quercus ilex L.) is one of the most repre-
sentative forest tree species in the western part of the
Mediterranean Basin [25, 26]. It is one of the clear exam
-
ples of t...
Tài liệu Báo cáo khoa học: Chromatin under mechanical stress: from single 30 nm fibers to single nucleosomes pdf
... is composed of an octamer of
core histones (two each of H2A, H2B, H3 and H4), a
linker histone and 166 bp ( 56 nm) of DNA [6].
The histone octamer alone associates with 146 bp of
DNA ( 50 ... released
lengths to a single nucleosomal DNA unwrapping,
however, appeared not to be straightforward. Upon
eviction of the histone octamer and histone H1 (i.e.
the disruption of the...
Báo cáo khoa học: Human skin cell stress response to GSM-900 mobile phone signals In vitro study on isolated primary cells and reconstructed epidermis docx
... the
duration of exposure as a function of the desired dose.
Tests on isolated human primary cutaneous cells
Detection of apoptosis
Apoptosis induction is often associated with cell stress. This
type of ... Epidermal recon-
structs: a new tool to study topical and systemic photo-
protective molecules. J Photochem Photobiol B68, 79–
87.
22 Keshvari J & Lang S (2005) Comparison o...