pressure exerted by a liquid depends on
Báo cáo khoa học: Targeting mechanism of the retinoblastoma tumor suppressor by a prototypical viral oncoprotein Structural modularity, intrinsic disorder and phosphorylation of human papillomavirus E7 doc
Ngày tải lên :
22/03/2014, 21:20
... dissociation constant and P
o
is the total
peptide concentration. The last term in the equation takes
into account slight aggregation that may take place at higher
protein concentrations. Data fitting ... (2005)
RB1 gene mutation up-date, a meta-analysis based on
932 reported mutations available in a searchable data-
base. BMC Genet 6, 53.
4 Burkhart DL & Sage J (2008) Cellular mechanisms of
tumour ... initial
and final anisotropy signals. For all reactions tested, full
saturation was achieved at a 1 : 1 molar ratio of titrant,
indicating a 1 : 1 stoichiometry, which validates the use of
a 1...
- 16
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- 0
Báo cáo Y học: Functional studies of the Synechocystis phycobilisomes organization by high performance liquid chromatography on line with a mass spectrometer docx
Ngày tải lên :
08/03/2014, 16:20
... internal composition of each subcomplex in
contrast to UV irradiation. In fact, it is well k nown that
adaptation of cyanobacterial phycobilisomes to light by
complementary chromatic adaptation ... with an electrospray ion
source (ESI-MS). An advantage of this approach is that
information can be collected on the initial events, which take
place as this organism adapts to environmental ch anges.
Ultracentrifugation ... separation allowed a quantitative estimation of the
relative amount of each protein component from the area
underlying each peak. This was facilitated by the fact that
the biliproteins are strongly c onserved...
- 9
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- 0
A CASE STUDY ON COMMON PROBLEMS IN LEARNING BUSINESS ENGLISH VOCABUALRY IN THE BOOK “BUSINESS BASICS” FACED BY THE 1ST YEAR STUDENTS AT VIETNAM UNIVERSITY OF COMMERCE, AND SOME SUGGESTED SOLUTIONS
Ngày tải lên :
29/01/2014, 00:23
... example, and teaches abstract vocabulary through association of ideas.
I.5.3. Vocabulary teaching according to the Communicative approach (CLT)
Communicative Language Teaching (CLT) is an approach ... their application in translation
passages from one language into the other. In this method, very little teaching is done in the
target language. Instead, readings in the target language are translated ...
vocabulary teaching and learning, especially in the context of VUC.
I.5.1.Vocabulary teaching according to the Grammar-translation method:
The grammar-translation method of foreign language...
- 42
- 1.3K
- 3
Báo cáo khoa học: Oxygen control of nif gene expression in Klebsiella pneumoniae depends on NifL reduction at the cytoplasmic membrane by electrons derived from the reduced quinone pool doc
Ngày tải lên :
17/03/2014, 10:20
... nif
regulation in K. pneumoniae.
K. pneumoniae strain UN4495 was used as the parental
strain that carries nifLA and a nifKÂ-lacZÂ fusion on the
chromosome and thus allows monitoring of NifA-mediated
transcription ... used as standards.
Membrane preparation
Cytoplasmic and membrane fractions of K. pneumo-
niae UN4495 and mutant derivatives were separated by
several centrifugation steps as recently described by
Klopprogge ... expression of nifLA
or nifA from the tac promoter was induced by the addition
of 10 l
M
isopropyl-b-
D
-thiogalactopyranoside (IPTG).
b-Galactosidase assay
NifA-mediated activation of transcription...
- 12
- 488
- 0
Báo cáo khóa học: Hydrolytic cleavage by a group I intron ribozyme is dependent on RNA structures not important for splicing pot
Ngày tải lên :
23/03/2014, 12:20
... Y., Kasai, Y., Inoue, A. , Baba,
T. & Taira, K. (2002) Existence of efficient divalent metal ion-
catalyzed and inefficient divalent metal ion-independent channels
in reactions catalyzed by hammerhead ... evolution. EMBO J. 16, 3289–3302.
25. Ikawa, Y., Naito, D., Aono, N., Shiraishi, H. & Inoue, T. (1999)
Trans-activation of the Tetrahymena group I intron ribozyme via
a non-native RNA–RNA interaction. ... to an equal volume of
STOP solution, and immediately frozen at )70°C.
Samples were separated on 8
M
urea/5% polyacrylamide
gels, followed by autoradiography.
Computations
To quantify RNA signals,...
- 10
- 412
- 2
Báo cáo khoa học: Kinetic studies on endo-b-galactosidase by a novel colorimetric assay and synthesis of N -acetyllactosamine-repeating oligosaccharide b-glycosides using its transglycosylation activity pptx
Ngày tải lên :
31/03/2014, 07:20
... endo-b-galactosidase activity by HPLC
The standard assay was carried out as follows. A reaction
mixture (500 lL) containing an appropriate substrate and
endo-b-galactosidase in 10 m
M
sodium acetate ... and tetrasaccharide b-glycosides 1–8 as
substrates for endo-b-galactosidase by combining a glycos-
idase-catalysed transglycosylation and a glycosyltrans-
ferase-catalysed reaction. Endo-b-galactosidases ... pylori:
analysis by matrix-assisted laser desorption/ionization mass
spectrometry after degradation with endo-b-galactosidase and by
fast atom bombardment mass spectrometry of permethylated
undegraded...
- 11
- 365
- 0
báo cáo hóa học: "Transmembrane potential induced on the internal organelle by a time-varying magnetic field: a model study" pdf
Ngày tải lên :
19/06/2014, 08:20
... first analytical solution for the transmembrane potential in
the organelle membrane induced by a time-varying magnetic field. We then analyzed factors that impact on the
polarization of the organelle, ... 10
KHz, and a 1.3 mV increase at 200 KHz, respectively.
The phase change caused by organelle removal was only
Figure 2 Regional polarization of the cytoplasmic membra ne and the organelle membrane by ... Biomaterials and
Biomedical Engineering, University of Toronto, Toronto, Ontario, M5S 1A1 ,
Canada .
4
Department of Surgery, University of Toronto, Toronto, Ontario,
M5S 1A1 , Canada.
Authors’ contributions
HY...
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- 0
báo cáo hóa học: " A pilot study on pupillary and cardiovascular changes induced by stereoscopic video movies" pptx
Ngày tải lên :
19/06/2014, 10:20
... Sendai, Japan
Email: Hiroshi Oyamada - theta@qg7.so-net.ne.jp; Atsuhiko Iijima - a- iijima@med.niigata-u.ac.jp; Akira Tanaka - a- tanaka@sss.fukushima-
u.ac.jp; Kazuhiko Ukai - ukai@waseda.jp; Haruo ... Haruo Toda - toda@med.niigata-u.ac.jp; Norihiro Sugita - sugita@yoshizawa.ecei.tohoku.ac.jp;
Makoto Yoshizawa - yoshizawa@yoshizawa.ecei.tohoku.ac.jp; Takehiko Bando* - bando@adm.niigata-u.ac.jp
* ... movies
Hiroshi Oyamada
1
, Atsuhiko Iijima
1
, Akira Tanaka
2
, Kazuhiko Ukai
3
,
Haruo Toda
1
, Norihiro Sugita
4
, Makoto Yoshizawa
4
and Takehiko Bando*
1
Address:
1
Division of Integrated Physiology,...
- 7
- 395
- 0
báo cáo hóa học: " Locomotor adaptation to a powered ankle-foot orthosis depends on control method" ppt
Ngày tải lên :
19/06/2014, 10:20
... light shading] are shown along with the steady state band for each measure. Time till steady state was used as a meas-
ure of the adaptation rate. Differences in day 1 versus day 2 adaptation rates ... data was sampled at 120 Hz. All other signals were
sampled at 1200 Hz. Three-dimensional kinematic data
was recorded using a 6-camera video system (Motion
Analysis Corporation, Santa Rosa, CA) ... 0HGLDO
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Adaptation ratesFigure 7
Adaptation rates. Adaptation rates expressed as time in minutes to
steady state for ankle angle correlation common variance, soleus EMG
RMS,...
- 13
- 410
- 1
báo cáo hóa học: " Interleukin-1β and anaphylatoxins exert a synergistic effect on NGF expression by astrocytes" potx
Ngày tải lên :
19/06/2014, 22:20
... via the anaphylatoxins/anaphylatoxin
receptors and was not due to contaminants in anaphyla-
toxin preparations.
Analysis of NGF mRNA expression following anaphyla-
toxin stimulation was also studied ... mRNA expression was increased by 3.2 fold after
2 h of stimulation by MAP-C 3a and by 2.9 fold after 4 h
for MAP-C 5a. Upregulation of NGF mRNA expression
induced by MAP-C 3a or MAP-C 5a was also ... 160:3543-3554.
30. Sayah S, Ischenko AM, Zhakhov A, Bonnard AS, Fontaine M: Expres-
sion of cytokines by human astrocytomas following stimula-
tion by C 3a and C 5a anaphylatoxins: specific increase in
interleukin-6...
- 10
- 777
- 0
Báo cáo hóa học: " Si nanowires by a single-step metal-assisted chemical etching process on lithographically defined areas: formation kinetics" docx
Ngày tải lên :
20/06/2014, 22:20
... th e wafer
into an HF/AgNO
3
aqueous solution of a given concen-
tration for an a ppropriate time. The reaction that takes
place is a galvanic displacement reaction. A galvanic cell
is established ... formation rate of SiNWs on non-patterned and on lithographically defined areas. Arrhenius plots of the
etch rate of Si by MACE as a function of temperature in the case of non-patterned areas (dark ... images of SiNWs formed on the blank Si wafer and on lithographically defined areas. Cross-sectional SEM images of SiNWs
fabricated on non-patterned Si areas (a) and on 100 ì 100-m
2
lithographically...
- 8
- 395
- 0
Báo cáo hóa học: " Zenithal alignment of liquid crystal on homeotropic polyimide film irradiated by ion beam" pdf
Ngày tải lên :
20/06/2014, 23:20
... Y, Saitoh Y, Sakai K, Satoh H, Odahara S, Nakano
H, Nakagaki J, Shiota Y: Atomic-beam alignment of inorganic materials for
liquid- crystal displays. Nature (London) 2001, 411:56-59.
[3] Janning ... The polarized UV irradiation technique has many merits such as
a clear image without the mura at a black level and an easy creation of multi-domain in a
pixel. However, it also has a problem ... image taken on a sample before ion beam treatment.
On the other hand, Figure 3b,c shows droplet images taken parallel and perpendicular to the
ion beam-irradiated direction for the ion beam-treated...
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- 0
Báo cáo hóa học: " An Antireflective Nanostructure Array Fabricated by Nanosilver Colloidal Lithography on a Silicon Substrate" pdf
Ngày tải lên :
21/06/2014, 17:20
... colloidal ink was
spin-coated onto a full wafer-scale silicon substrate to form
a multilayered nanosilver film (Fig. 2a) and transformed to
an isolated random array of nanosilver islands by thermal
annealing ... the antireflection
effect was substantially large in general, and depends on
the nanopillar height. The reflection nearly disappeared in
the UV wavelength range and was only 17% of that of a
bare ... measured in the
Fig. 6 Quantitative analysis of nanosilver islands in terms of the
concentration and spin speed: a average size, b coverage rate
Table 1 Quantitative analysis of nanosilver islands...
- 8
- 575
- 0
Báo cáo hóa học: "Fabrication of Densely Packed AlN Nanowires by a Chemical Conversion of Al2O3 Nanowires Based on Porous Anodic Alumina Film" potx
Ngày tải lên :
21/06/2014, 20:20
... EXPRESS
Fabrication of Densely Packed AlN Nanowires by a Chemical
Conversion of Al
2
O
3
Nanowires Based on Porous Anodic Alumina
Film
Zhi-Hao Yuan ặ Shao-Qing Sun ặ Yue-Qin Duan ặ
Da-Jian Wang
Received: ... of the AlN
nanowires than that of the Al
2
O
3
ones.
Summary and Conclusions
We have developed a convenient method for the prepara-
tion of densely packed AlN nanowires based on a new
strategy. ... follows:
Al
2
O
3
nanowireịỵ4Al ẳ 3Al
2
Onanowireị:
And then the following reaction can take place:
Al
2
Onanowireịỵ2NH
3
ẳ 2AlNnanowireịỵH
2
O
ỵ 2H
2
:
As a result, the Al
2
O
3
nanowires are chemically
converted...
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