influence of polymer additive
Tài liệu Influence of future air pollution mitigation strategies on total aerosol radiative forcing pdf
Ngày tải lên :
17/02/2014, 10:20
... 5567
Twomey, S.: The influence of pollution on the shortwave albedo of clouds, J. Atmos. Sci., 34,
1249–1152, 1977. 5565
Unger, N., Shindell, D., Koch, D., and Streets, D.: Cross influence of ozone and ... the ratio of global mean burden
to global mean emission) is influenced by changes of the source distribution as well
as changes in the aerosol and oxidant composition. The influence of changes ... mode, is a result of the interdependence of sulfate and
carbonaceous emission to form aerosols of the accumulation size mode range. Gas-
phase SO
4
condensates on the surface of primary emitted...
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Tài liệu Báo cáo khoa học: Influence of modulated structural dynamics on the kinetics of a-chymotrypsin catalysis Insights through chemical glycosylation, molecular dynamics and domain motion analysis pptx
Ngày tải lên :
19/02/2014, 05:20
... catalytic mechanism of
the enzyme.
Structural insights into the mechanochemical
nature of a-CT catalysis
A more detailed analysis of the influence of chemical
glycosylation on the dynamics of a-CT from ... within a cutoff distance (r
c
¼ 6.0 A
˚
). The dynamics of
the resulting network are then defined by the Ni · Nj Kir-
chhoff connectivity matrix of interresidue contacts (G)
where the off diagonal ... pot-
entials (EP) for the N
e
of the lysine residues of a-CT at pH 9. EP,
EwaldEi. EP is the Ewald energy of placing a charge of +1 at the
location of the i
th
ionizable atom [89].
Reactivity order...
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Báo cáo khoa học: Influence of inflammation-related changes on conformational characteristics of HLA-B27 subtypes as detected by IR spectroscopy potx
Ngày tải lên :
06/03/2014, 00:21
... are due to different packing of the protein chains
in crystallo. A comparison of the X-ray structures
revealed, however, that the structures of the HC and
of b
2
m of the two subtypes appear nearly ... conformational flexibility of the B*2705
HC in comparison to that of B*2709 found also in
case of pVIPR-U5 (see IR results, Fig. 2) must be
regarded as an intrinsic property of the HC of the two
subtypes ... study
the effect of lowering the pH such that it approached
that in an inflamed tissue [12].
To this end, we analysed the influence of a pH value of
5.6 on the thermal stability of all four HLA-B27:peptide
complexes...
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Báo cáo khoa học: The influence of heterodimer partner ultraspiracle/retinoid X receptor on the function of ecdysone receptor pot
Ngày tải lên :
07/03/2014, 12:20
... 1 h after addition of ligand and reached peak
levels of 19 000-fold induction by 48 h after addition
of ligand (Fig. 11A). The turn off of reporter activity
after withdrawal of ligand is also ... the place of USP in all EcR gene switches
developed to date. One of the major limitations of cur-
rent versions of EcR gene switches is the requirement
of micromolar concentrations of ligand ... terms of low background levels of reporter gene
activity in the absence of a ligand and high levels of
reporter gene activity in the presence of a ligand [23].
However, the ligand sensitivity of...
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Báo cáo khoa học: The influence of cold shock proteins on transcription and translation studied in cell-free model systems pdf
Ngày tải lên :
07/03/2014, 21:20
... efficiency of various genes under the
control of a strong promotor is influenced by many
Fig. 5. Influence of CSPs on the in vitro translation of CAT. Activity
level of CAT after in vitro translation of ... inherent
experimental errors of our assay. However, the expres-
sion of CAT under the influence of any of the three
used CSPs resulted in a significant, dramatic decrease
of protein synthesis rate ... cases. Therefore
we can confirm the hypothesis of [6] that high concen-
trations of CSPs lead to an inhibition of general
R. Hofweber et al. Influence of CSPs on transcription and translation
FEBS...
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Báo cáo khoa học: The influence of cholesterol on the interaction of HIV gp41 membrane proximal region-derived peptides with lipid bilayers potx
Ngày tải lên :
23/03/2014, 07:20
... membrane interaction behaviour of MPRP-C
and MPRP-I is independent of the membrane phase
but not of the presence of charged lipids. Cholesterol
does not reduce the extent of or potentiate membrane
interaction. ... membrane interactions of peptides
can be enhanced by a concerted action of several
membrane-binding motifs or by the particular dispo-
sition of key residues in the context of long peptides or
even ... analysis of partition into membranes of mem-
brane proximal region sequence. (A) Values of DG
wif
< 0 indicate
the sequence residues with tendency to the membrane–water
interface. (B) Values of...
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Entitling art: Influence of title information on understanding and appreciation of paintings doc
Ngày tải lên :
23/03/2014, 13:20
... value of paintings. British Journal of Psychology,
94(1), 99–110.
Russell, P. A., & Milne, S. (1997). Meaningfulness and hedonic value of paintings: effects of titles. Empirical
Studies of the ... 193
Entitling art: Influence of title information
on understanding and appreciation of paintings
Helmut Leder
a,b,
*
, Claus-Christian Carbon
a
, Ai-Leen Ripsas
b
a
Faculty of Psychology, University of Vienna, ... consist of artworks, it is worthwhile to study the effect of
paintings by artists of high art. Leder et al. (2004) considered this to be of particular
importance, because a preclassification of an...
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Báo cáo khoa học: Influence of divalent cations on the structural thermostability and thermal inactivation kinetics of class II xylose isomerases pdf
Ngày tải lên :
23/03/2014, 13:20
... the inactivation courses of apo-TNXI
and of TNXI in the presence of 5 mm concentrations
of each of the three divalent cations (Mg
2+
,Mn
2+
,or
Co
2+
). With the exception of apo-TNXI, whose inacti-
vation ... inactivation in
the presence of 5 mm metal at 99–100 °C was slowest in the presence of
Mn
2+
[half-life (t
1 ⁄ 2
) of 84 min], compared to Co
2+
(t
1 ⁄ 2
of 14 min) and
Mg
2+
(t
1 ⁄ 2
of 2 min). While adding ... optimal temperatures
of activity often in excess of 100 °C [1]. Studies focus-
ing on the molecular basis for the thermostability of
these enzymes have revealed an array of subtle contri-
buting...
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Báo cáo khoa học: Weak organic acid stress inhibits aromatic amino acid uptake by yeast, causing a strong influence of amino acid auxotrophies on the phenotypes of membrane transporter mutants ppt
Ngày tải lên :
23/03/2014, 21:20
... College London, UK
The ability of yeasts to grow in the presence of weak organic
acid preservatives is an important cause of food spoilage.
Many of the determinants of acetate resistance in Sac-
charomyces ... intracellular levels of benzoate and fluorescein
by catalysing an active efflux of these compounds from the
cell [2,4]. The inhibitory effects of different organic acids on
cells of the Dpdr12 mutant ... short chain
(C
3)8
) carboxylic acids of reasonable water solubility [5,6].
A similar spectum of acids is also capable of mediating the
War1p-dependent induction of Pdr12p [3,6]. These are acids
that...
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Báo cáo khoa học: The influence of temperature and osmolyte on the catalytic cycle of cytochrome c oxidase ppt
Ngày tải lên :
31/03/2014, 07:20
... presence of low concentrations of
cytochrome c plus TMPD and ascorbate. As the concen-
tration of cytochrome c is increased, the fraction of
cytochrome a that is reduced increases. The fraction of
cytochrome ... 90% inhibition of the overall
activity of the cytochrome c oxidase, an energetic difference
of 1.2 kcalÆmol
)1
. Part of the inhibition probably stems
from a slight weakening of the interaction ... the
consumption of protons in the mitochondrion, results in the
formation and maintenance of a transmembrane gradient of
protons. It, in conjunction with the membrane potential,
powers the synthesis of ATP...
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Báo cáo hóa học: " Research Article Removing the Influence of Shimmer in the Calculation of Harmonics-To-Noise Ratios Using Ensemble-Averages in Voice Signals" docx
Ngày tải lên :
21/06/2014, 20:20
... evaluation of the influence of jitter (as well
of other levels of noise and their combinations) in the
performance of the PDA and HNRSr would require extensive
tests and is out of the scope of this ... spite of using estimated values for
the pulse amplitudes.
Both facts can be explained by the presence, in any pulse
of the signal, of the decaying tails of previous pulses. This
summation of tails ... implementation of (28)wasperformedby
setting a sampling frequency of 22050 Hz, a fundamental
frequency of 150 Hz (yielding 147 samples per period), and
M
= 300, to produce an approximate of 2 seconds of
synthesized...
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Báo cáo hóa học: " Research Article New Method to Determine the Range of DVB-H Networks and the Influence of MPE-FEC Rate and Modulation Scheme" doc
Ngày tải lên :
21/06/2014, 22:20
... interval of 1/8 has been selected for all tests
[6, 13].
3. Results
3.1. Influence of MPE-FEC Coding Rate on R, R
CINR|
5
,and
R
E|
5
. In this section, the influence of the MPE-FEC rate on
the range of ... are the result of one single
investigated route.
3.2. Influence of Modulation Scheme on R, R
CINR|
5
,andR
E|
5
.
In this section, the influence of the modulation scheme on
the range of the DVB-H ... strength.
MFER is the ratio of the number of residual erroneous frames
(i.e., not recoverable) and the number of received frames
[3]. FER is the ratio of the number of erroneous frames
before...
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Báo cáo hóa học: "Influence of Cobalt Doping on the Physical Properties of Zn0.9Cd0.1S Nanoparticles" docx
Ngày tải lên :
22/06/2014, 00:20
... coupling. How-
ever, the plot of v
-1
versus T (with cobalt concentration of
0.18 M) in the inset of Fig. 7b does not passes through the
origin. Extrapolation of the linear part of this curve gives
an ... distortion of the
tetrahedral coordination of Co
2?
ions and direct band
gap absorption, while high cobalt concentration samples
([0.05 M) have more distortion of the tetrahedral coordi-
nation of Co
2?
and ... for
generation of diluted magnetic semiconductors (DMS) [3,
12]. DMS can play a vital role in the field of spintronics
because of its ability to accommodate electron charge and
its spin degrees of freedom...
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Báo cáo hóa học: " Influence of Uniaxial Tensile Stress on the Mechanical and Piezoelectric Properties of Short-period Ferroelectric Superlattice " potx
Ngày tải lên :
22/06/2014, 00:20
... piezoelectric
coefficient d
33
of ground state superlattice is 86.36 pC/N,
which is slightly less than the value of 103.18 pC/N of PTO,
but much larger than the value of 36.43 pC/N of BTO.
Under the loading of uniaxial ... the slope of polarization versus stress curves. The
enhancement of piezoelectricity corresponds to the maxi-
mum slope of the curve of Fig. 4aatr
c
, it is the change of
magnitude of polarization ... lattice constants of the unstrained superlattice
structure. We have examined the accuracy of our calcula-
tions by studying the influence of different strains on the
properties of BTO and PTO, respectively...
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Báo cáo hóa học: " Tin Oxide Nanowires: The Influence of Trap States on Ultrafast Carrier Relaxation" potx
Ngày tải lên :
22/06/2014, 00:20
... nm of Au and had an area of
&6 9 6mm
2
. The morphology of the SnO
2
NWs was
examined with a TESCAN scanning electron microscope
(SEM) while the crystal structure and the phase purity of
the ... source of
short pulses. Approximately 1 mJ of amplified energy was
used to pump an Optical Parametric Amplifier (OPA)
providing ultrafast pulses in the UV range of the spectrum.
The rest of the ... an
average diameter of 50 nm and lengths C5 lms. Further-
more the diameter of the SnO
2
NWs was found to be
uniform along their length. The growth of the SnO
2
NWs
occurs via the formation of Au nanoparticles...
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