redox titration of oxalic acid with potassium permanganate
Báo cáo khoa học: Interaction of gymnemic acid with cyclodextrins analyzed by isothermal titration calorimetry, NMR and dynamic light scattering doc
Ngày tải lên :
16/03/2014, 14:20
... correlate
with the binding affinity between GA and the receptor.
The thermodynamic parameters obtained are in the
range of those of other interactions with c-CD [15].
The interaction of GA with c-CD ... presence of
2.0 m
M a-CD, b-CD, and c-CD. (B) The concentration dependence
of c-CD on NMR spectra of 2.0 m
M GA. The ratios of c-CD to GA
are indicated.
Y. Izutani et al. Interaction of gymnemic acid ... Relative frequency of
39 m
M c-CD. DLS of c-CD at low concentration such as 3.1 mM was difficult to detect. (C) Relative frequency of 3.1 mM GA in the presence
of equimolar concentration of c-CD. Relative...
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Báo cáo khoa học: Mechanism of mild acid hydrolysis of galactan polysaccharides with highly ordered disaccharide repeats leading to a complete series of exclusively odd-numbered oligosaccharides doc
Ngày tải lên :
23/03/2014, 04:21
... [21].
Hydrolysis of i-carrageenan was extended to 3 h. Small-
scale (10 mg) hydrolysis of j-carrageenan was also carried
out with various organic acids, including TFA, oxalic
acid, maleic acid, phthalic acid, ... fumaric acid, citric acid,
formic acid, succinic acid, and acetic acid, at 60 °C for
1.5 h. Reductive hydrolysis of j-carrageenan and agarose
was carried out on a large scale with addition of 0.2 ... mechanism of acid hydrolysis of the
3,6-anGal-containing galactans.
Results and Discussion
Identification of a complete series of
odd-numbered oligosaccharides resulting from
mild acid hydrolysis of...
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Báo cáo y học: "Positioning Effects of KillerRed inside of Cells correlate with DNA Strand Breaks after Activation with Visible Light"
Ngày tải lên :
25/10/2012, 11:15
... activation and the increase of fluorescence in-
tensity inside of the nuclei of DU145 cells.
Figure 2 visualizes the degree of the DNA damage in nuclei as a result of DNA strand breaks caused ... (red –
of the fusion protein KRED-Lamin B1 and green –
derived from dNTP functionalized with ATTO 633)
are hardly detectable inside of the nuclei transfected
with
pKillerRed-Lamin B1 without ... a crucial component of the
chromosomal chromatin. In the cells the histone
H2A-KRED fusion protein becomes part of the nu-
cleosomes with a very tight distance to DNA. With
these experiments...
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Báo cáo y học: " Experimental ablation of the pancreas with high intensity focused ultrasound (HIFU) in a porcine model"
Ngày tải lên :
25/10/2012, 11:18
... compliance with the guide for the care and use
of laboratory animals from the Ministry of Science
and Technology of the People’s Republic of China.
Instruments
HIFU ablation was performed with ...
treatment of prostate hypertrophy. In 1956, HIFU was
first introduced to the treatment of human solid car-
cinomas [4]. The treatment of hepatocellular carci-
n o m a ( H C C ) with HIFU was ... (for treatment
of tumors of the liver, kidney, breast, uterus, pancreas
and bone) or in the rectum (for treatment of the pros-
tate), and are designed to enable rapid heating of a
target tissue...
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Báo cáo y học: " Treatment of oroantral fistula with autologous bone graft and application of a non-reabsorbable membrane"
Ngày tải lên :
25/10/2012, 11:48
... resolution of the OAF, optimal management of complications, including patient
discomfort, and good regeneration of soft tissues.
Clinical significance: The principal advantage of the use of autologous ... reconstruction of soft
tissues and to assure the preservation of the bone graft from epithelial connection.
Conclusions: This surgical procedure showed a good stability of the bone grafts, with a
complete ... elevation of the
sinus membrane without disruption impossible
2
.
Clinical Significance
The principal advantage of the technique de-
scribed here is the use of autologous bone graft with
an...
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Báo cáo y học: "ISOLATION OF CHLAMYDIA PNEUMONIAE FROM SERUM SAMPLES OF THE PATIENTS WITH ACUTE CORONARY SYNDROME"
Ngày tải lên :
26/10/2012, 08:57
... phenol-chloroform DNA extraction pro-
tocol. TaqMan PCR analysis revealed that human serum of patients with acute coronary
syndrome may contain genetic markers of C. pneumoniae with bacterial ... bodies of C. pneumoniae with typical electron
microscopic structure can be isolated from the serum
samples of the patients with acute coronary syn-
drome. Furthermore, using combination of bacterio-
logical ... relevant levels of IgG for
C. pneumoniae were found in 34.2% of the patients
with ACS, whereas IgA positive were seen just in
19.7% of the ACS patients. Simultaneous detection of
increased...
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Báo cáo y học: "Influence of Cyclodextrin Complexation with NSAIDs on NSAID/Cold Stress-Induced Gastric Ulceration in Rats"
Ngày tải lên :
26/10/2012, 08:57
... principal mechanism of action of all NSAIDs
is the inhibition of the biosynthesis of prostaglandins
by blocking the activity (selectively and/or
non-selectively) of two isoforms of cyclooxygenase ... and COX-2) [6-8]. With the exception
of aspirin, NSAIDs inhibit synthesis of prostaglandins
(mediators of inflammation) via competition with
arachidonic acid for the two isoforms. Generally, ...
Preparation of CD Solutions
An aqueous solution of each CD was prepared
by dissolving accurately weighed CDs (180 mg of
β-CD and 300 mg of HP-β-CD) in 10 ml of distilled
water with the aid of a...
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ứng dụng chất kích kháng CuCl2 và Oxalic Acid
Ngày tải lên :
10/04/2013, 21:05
... 2.7: Hiệu quả kích kháng của oxalic acid lên tỉ lệ diện tích vết bệnh trên lá (%) ở các
thời điểm 40, 50 và 60 NSKS 42
Hình 2.8: Hiệu quả kích kháng của oxalic acid lên tỉ lệ bệnh thối cổ bông ... 2.13: Hiệu quả kích kháng của oxalic acid lên tỉ lệ diện tích vết bệnh trên lá (%) ở các
thời điểm 40, 50 và 60 NSKS 50
Hình 2.14: Hiệu quả kích kháng của oxalic acid lên tỉ lệ bệnh thối cổ bông ... 2001) và mô học (Huỳnh Minh Châu và ctv,2001).
6. Đặc tính oxalic acid và tác động của nó đối với cây trồng
Tên hóa học: OXALIC ACID
Công thửc hóa học: Thường tồn tại ở dạng ngm 2 phõn t...
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Take Care of Error Handling with Bound Controls
Ngày tải lên :
28/10/2013, 19:15
... RefreshIndividual()
1.6 Take Care of Error Handling with Bound Controls
When dealing with database tasks, you are going to get runtime errors. In .NET, we call
the various types of errors you can get exceptions. ... it so errors are handled gracefully within the application using bound
controls?
Technique
Error handling is one of the most important aspects of working with data, between when
a user is ... the Click event of the command button called btnSave. You
will surround the SaveRecord routine call with a Try Catch End Try block. If an
exception occurs, the Show method of the MessageBox...
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