which organic compounds as classified by their functional groups will dissolve in water and explain why
Báo cáo y học: "Segment-orientated analysis of two-dimensional strain and strain rate as assessed by velocity vector imaging in patients with acute myocardial infarction"
Ngày tải lên :
25/10/2012, 11:15
...
radial and circumferential strain and strain rate by
2DST in normo-, hypo-, akinetic and dyskinetic seg-
ments of post-infarct patients
8-13, 30-37
, which were not
reliably accessible by TDI. ...
tracking. Int J Cardiovasc Imaging 2008; 24(5): 479-491.
5. Sutherland GR, Di Salvo G, Claus P, D'Hooge J, Bijnens B.
Strain and strain rate imaging: a new clinical approach to
quantifying ... (38%) as infarcted, 162 (30%) as adjacent and
173 (32%) as non-infarcted.
The comparison of infarcted and non-infarcted
segments showed a significant difference (p < 0.05)
according to...
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Tài liệu Glossary of Volatile Organic Compounds ppt
Ngày tải lên :
14/02/2014, 03:20
... tetrachloride was widely used as a cleaning fluid, in industry and dry cleaning
businesses, and in the household. Carbon tetrachloride also was used in fire extinguishers and as
a fumigant to kill insects ... naturally in crude oil and in the tolu tree. It is
produced in the process of making gasoline and other fuels from crude oil. Toluene is also used
in making paints, paint thinners, fingernail ... 1,1,1-trichloroethane usually by breathing contaminated air or by drinking
contaminated water and eating contaminated food.
Health effects
People who breathe air containing high levels of 1,1,1-trichloroethane...
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Tài liệu ADSORPTION OF ORGANIC COMPOUNDS doc
Ngày tải lên :
14/02/2014, 03:20
... whereas increasing the EBCT by increas-
ing the bed depth can bring about sharp reductions in numbers of organisms in GAC
filtrate, increasing EBCT by decreasing flow rate did not decrease, but ... remaining in the effluent immediately after start-up decreased as the
EBCT increased to about 20 min, and that the time to reach a steady-state effluent
concentration increased as the EBCT increased.
Graese, ... the
adsorption of other compounds in that water.
The IAST was applied to the problem of trace organic adsorption in natural
waters by Najm, Snoeyink, and Richard (1991) using a procedure that was subse-
quently...
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Tài liệu NOMENCLATURE OF ORGANIC COMPOUNDS docx
Ngày tải lên :
14/02/2014, 08:20
... the 1 and 4 positions on the ring (opposite carbon atoms)
IV. Naming Functional Group Compounds
Derivatives are formed by replacing one or more of the hydrogens in a hydrocarbon by a
FUNCTIONAL ... difference which end you start the numbering. In both
cases the alkyl groups, or branches are attached to the second and fourth carbon atoms in
the parent chain.
4. Name the compound in order ... compounds, their structures and names is listed in
tables on the next two pages.
1
NOMENCLATURE OF ORGANIC COMPOUNDS
©2010, 2003, 1980, by David A. Katz. All rights reserved.
Organic...
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Tài liệu Air pollution during the 2003 European heat wave as seen by MOZAIC airliners ppt
Ngày tải lên :
17/02/2014, 10:20
... FLEXPART parameterizes turbulence
by solving Langevin equations (Stohl and Thomson, 1999) and convection by using25
a buoyancy sorting principle base scheme (Emmanuel and
˘
Zivkovi
´
c-Rothman, 1999;
Seibert ... strong in uence on the measured
concentrations.
From the observed levels of pollutants in the plume and in layers below and above, it
is possible that O
3
has increased up to 20 ppbv during the ... triggered
by forest fires may be able to inject aerosol into the stratosphere at high latitudes. In
the present case, when progressing from Portugal to United Kingdom, the weak extra-
tropical low was associated...
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Tài liệu Báo cáo khoa học: Destabilization of psychrotrophic RNase HI in a localized fashion as revealed by mutational and X-ray crystallographic analyses pdf
Ngày tải lên :
18/02/2014, 13:20
... and 5·-RNase
HI proteins by 28.8, 10.1 and 6.7 °C, respectively, in
T
m
, and 20.7, 7.2 and 4.8 kJÆmol
)1
, respectively, in
DDG
m
.
The stabilities of the 4·-RNase HI, 5·-RNase HI
and 6·-RNase ... 4·-RNase HI and 5·-RNase
HI proteins by 27.0, 14.8 and 7.0 kJÆmol
)1
and 3.1, 1.7
and 0.8 m, respectively. Thus, the stabilities of the
5·-RNase HI and 6·-RNase HI proteins against urea-
induced ... N29 and Nd and E131 and Oe2, in the wild-type protein are shown as green broken lines, and
the ion pair between the e-amino group of K29 and the carboxyl group of E131 in 6·-RNase HI is shown as...
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Tài liệu Báo cáo khoa học: Amino acid discrimination by arginyl-tRNA synthetases as revealed by an examination of natural specificity variants doc
Ngày tải lên :
18/02/2014, 13:20
... 3¢-terminal
55-base sequence. The remaining 5¢ region was assembled
taking into account conserved D-loop bases and the
base-pairing requirement of the D-loop and acceptor
stems, while bearing in mind ... December
2008)
doi:10.1111/j.1742-4658.2009.06866.x
l-Canavanine occurs as a toxic non-protein amino acid in more than 1500
leguminous plants. One mechanism of its toxicity is its incorporation into
proteins, replacing l-arginine and giving rise to functionally ... FEBS
bean and soybean. When binding of arginine in the
presence of tRNA was investigated, some changes in
the binding architecture were observed [35], in that
N(153:Y), in addition to interacting with...
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Tài liệu Báo cáo khoa học: Enzymatic properties of wild-type and active site mutants of chitinase A from Vibrio carchariae, as revealed by HPLC-MS pptx
Ngày tải lên :
20/02/2014, 01:20
... faint band was also
seen at an M
r
of 43 000. This band appeared as a
degradation product during freezing and thawing of
the protein that was stored at )30 °C. As revealed by
immunoblotting, ... lgÆmL
)1
colloidal chitin and incubated at
20 °C for 5 min (solid line) and 60 min (dotted line). Ten microlitres
of the sample was subjected to HPLC-MS. The signal was recor-
ded in the single ion mode ... transduc-
tion pathways and has been studied extensively in
Vibrio furnissi [4–7].
Chitinases (EC 3.2.1.14) are classified into glycosyl
hydrolase families 18 and 19, depending on their amino
acid sequences...
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Tài liệu Báo cáo khoa học: Si-face stereospecificity at C5 of coenzyme F420 for F420H2 oxidase from methanogenic Archaea as determined by mass spectrometry ppt
Ngày tải lên :
20/02/2014, 03:20
... used was based, in principle, on the technique
for determining the hydride transfer stereospecificity of
nicotinamide adenine dinucleotide-linked oxidoreduc-
tases by MS [21].
Results
The following ... 7,8-didemethyl-8-hydroxy-5-deaza-
riboflavin derivative (Fig. 1). The coenzyme, which is
generally present in 1 mm intracellular concentrations
[1], functions as a redox mediator in methanogenesis,
in NADP
+
reduction and in glucose-6-phosphate
dehydrogenation ... pyridine nucleotides
than to flavins [3]. Both F
420
and NAD(P) transfer
hydride anions and not single electrons. In the reduced
form, both F
420
and NAD(P) have a prochiral centre,
F
420
at C5 and...
- 6
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- 1
Tài liệu ESP TARGET SITUATION NEEDS ANALYSIS: THE ENGLISH LANGUAGE COMMUNICATIVE NEEDS AS PERCEIVED BY HEALTH PROFESSIONALS IN THE RIYADH AREA docx
Ngày tải lên :
24/02/2014, 18:20
... needs assessment) as the
activities involved in gathering information that will serve as the basis for developing a
curriculum which meet the learning needs of a particular group of students. In ... be stated in terms of goals
and objectives which, in turn, can serve as the bases for developing tests, materials, teaching
21
ability. The study concluded that a training course in English ... observations, and
questionnaires were used to gather information about the objective needs of students. The
findings indicated that communicating with clients and colleagues in the clinical setting was...
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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
... pArg5 in
the noncanonical binding mode. Therefore, histidine
residues within the binding groove of HLA-B27 mole-
cules serve important functions in maintaining a bound
peptide in place.
As indicated ... anchored to B*2709 by a hydrogen bond connecting pU5
O7
and His116
NE2
, as indicated by a dashed red line. Oxygen atoms
are shown in red, nitrogen atoms in blue. B*2705 binds the peptide
in canonical ... previously, it was to be expected that
the distinct water networks within the HLA-B27 bind-
ing groove might be in uenced by lowering the pH to
values that predominate in an in ammatory milieu
[12]....
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