Phase structural analyses of polyethylene coatings on high-density papers. III. Determination of the crystallite thicknesses by T1 measurements

2003 ◽  
Vol 91 (1) ◽  
pp. 235-241 ◽  
Author(s):  
Knut Magne Furuheim ◽  
David E. Axelson ◽  
Henrik W. Antonsen ◽  
Torbj�rn Helle
Keyword(s):  
High Density

Structural Determination of High Density, ATRP Grown Polystyrene Brushes by Neutron Reflectivity

2009 ◽  
Vol 42 (24) ◽  
pp. 9523-9527 ◽  
Author(s):  
John R. Ell ◽  
Dennis E. Mulder ◽  
Roland Faller ◽  
Timothy E. Patten ◽  
Tonya L. Kuhl
Keyword(s):  
High Density ◽  
Neutron Reflectivity ◽  
Structural Determination

scholarly journals Probing Dense QCD Matter: Muon Measurements with the CBM Experiment at FAIR

Particles ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 205-213
Author(s):  
Anna Senger ◽  
Peter Senger
Keyword(s):  
Performance Studies ◽  
Reaction Rates ◽  
High Density ◽  
Streaming Data ◽  
Qcd Phase Diagram ◽  
Chemical Potentials ◽  
Muon Pairs ◽  
Caloric Curve ◽  
Density Equation

The Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt is designed to investigate the properties of high-density QCD matter with multi-differential measurements of hadrons and leptons, including rare probes such as multi-strange anti-hyperons and charmed particles. The research program covers the study of the high-density equation-of-state of nuclear matter and the exploration of the QCD phase diagram at large baryon chemical potentials, including the search for quark matter and the critical endpoint of a hypothetical 1st order phase transition. The CBM setup comprises detector systems for the identification of charged hadrons, electrons, and muons; for the determination of collision centrality and the orientation of the reaction plane; and a free-streaming data read-out and acquisition system, which allows online reconstruction and selection of events up to reaction rates of 10 MHz. In this article, emphasis is placed on the measurement of muon pairs in Au-Au collisions at FAIR beam energies, which are unique probes used to determine the temperature of the fireball, and hence to search for a caloric curve of QCD matter. Simultaneously, the subthreshold production of charmonium can be studied via its dimuon decay in order to shed light on the microscopic structure of QCD matter at high baryon densities. The CBM setup with focus on dimuon measurements and the results of the corresponding physics performance studies will be presented.

Determination of high-density lipoprotein phospholipids in serum.

1980 ◽  
Vol 26 (9) ◽  
pp. 1275-1277 ◽  
Author(s):  
Y Yamaguchi
Keyword(s):  
High Density Lipoprotein ◽  
Density Lipoprotein ◽  
Mean Value ◽  
High Density ◽  
High Density Lipoproteins ◽  
Low Density ◽  
Very Low Density Lipoproteins ◽  
Color Development ◽  
The Mean

Abstract I describe a method for measuring high-density lipoprotein phospholipids. Magnesium chloride and dextran sulfate are used to precipitate all low-density and very-low-density lipoproteins. The supernate contains only high-density lipoproteins, the phospholipid concentration of which is determined by an enzymic method. The precision of the method (CV) is 2.35% (10 repeated assays), and the mean value for HDL-phospholipids was 1006 (SD 248) mg/L for 30 apparently healthy subjects. I used electrophoresis and enzymic color development to confirm the presence of HDL-phospholipids. Results are compared with those obtained by an ultracentrifugation method.

Comparison of the Du Pont aca and Dow methods for determination of high-density lipoprotein cholesterol.

1984 ◽  
Vol 30 (1) ◽  
pp. 127-129 ◽  
Author(s):  
N N Rehak ◽  
R J Elin ◽  
R Chesler ◽  
E Johnson
Keyword(s):  
High Density Lipoprotein ◽  
Disease Control ◽  
Total Cholesterol ◽  
High Density Lipoprotein Cholesterol ◽  
Dextran Sulfate ◽  
Density Lipoprotein ◽  
High Density ◽  
Lipoprotein Cholesterol ◽  
Serum Samples

Abstract We compared the Du Pont aca (phosphotungstate-enzymic cholesterol) and the Dow (dextran sulfate/Mg2+-enzymic cholesterol) methods for the determination of high-density lipoprotein cholesterol (HDLC) and total cholesterol in serum from 113 patients. The aca results for both total cholesterol and HDLC were significantly greater (p less than 0.0001) than the Dow results, the aca method overestimating the HDLC concentration (mean recovery 107.2% in serum samples with values assigned by the Centers for Disease Control). The precision of the aca method for HDLC was essentially the same as that of the Dow method. Bilirubin (up to 0.17 g/L), hemoglobin (up to 4 g/L), and slight lipemia (triglycerides up to 5.4 g/L) did not interfere with the aca method.

A method for the design of 3D scaffolds for high-density cell attachment and determination of optimum perfusion culture conditions

2008 ◽  
Vol 41 (7) ◽  
pp. 1436-1449 ◽  
Author(s):  
Christophe Provin ◽  
Kiyoshi Takano ◽  
Yasuyuki Sakai ◽  
Teruo Fujii ◽  
Ryo Shirakashi
Keyword(s):  
Cell Attachment ◽  
Perfusion Culture ◽  
Culture Conditions ◽  
High Density ◽  
3D Scaffolds ◽  
High Density Cell

Densitometry of phosphatidylcholine and sphingomyelin in high-density lipoproteins.

1983 ◽  
Vol 29 (7) ◽  
pp. 1435-1437 ◽  
Author(s):  
G Schmitz ◽  
H U Jabs ◽  
G Assmann
Keyword(s):  
Sulfuric Acid ◽  
Phosphotungstic Acid ◽  
High Density ◽  
High Density Lipoproteins ◽  
Low Concentrations ◽  
Layer Chromatography ◽  
Inexpensive Technique ◽  
Native Plasma ◽  
Enzymatic Methods

Abstract We describe the quantitative densitometric determination of phosphatidylcholine (PC) and sphingomyelin (SP) in human serum after precipitation with phosphotungstic acid/MgCl2 and use of thin-layer chromatography. After development, chromatographic plates were charred with methanolic sulfuric acid and MnCl2 and scanned by direct reflectance densitometry in an automated densitometric system interfaced to a basic programmable computing integrator. The method is sensitive enough to detect abnormally low concentrations of PC and SP in high-density lipoproteins. The accuracy of the method was tested either with the Bartlett phosphorus assay or with enzymatic methods for PC and SP; correlations of the described method with the enzymatic determinations were r = 0.93 and 0.88, respectively. Day-to-day precision (CV) for the phospholipid determination was 8.6% for PC and 12.2% for SP. The major advantage of this inexpensive technique is that native plasma or serum or the serum supernate after precipitation can be used without prior delipidation. With this technique serum high-density lipoproteins had PC values of 1.08 (SD 0.32) mmol/L in men (n = 158) and 1.12 (SD 0.37) mmol/L in women (n = 192); similarly, SP values were 0.23 (SD 0.07) mmol/L in the men and 0.23 (SD 0.08) mmol/L in the women. The differences by sex are not significant.

High-density lipoprotein subfractions measured in stored serum

1994 ◽  
Vol 40 (9) ◽  
pp. 1713-1716 ◽  
Author(s):  
L L Bausserman ◽  
A L Saritelli ◽  
D Milosavljevic
Keyword(s):  
High Density Lipoprotein ◽  
Dextran Sulfate ◽  
Density Lipoprotein ◽  
Hdl Cholesterol ◽  
High Density ◽  
Manganese Chloride ◽  
Lipoprotein Subfractions ◽  
Hdl Subfractions ◽  
High Density Lipoprotein Subfractions

Abstract We compared the effects of freezing serum on the determination of high-density lipoprotein (HDL) subfractions by two dual-precipitation methods, heparin and manganese chloride/dextran sulfate (HM/DS) (Gidez et al., J Lipid Res 1982;23:1206-23) and DS/DS (Warnick et al., Clin Chem 1982;28:1574), and by ultracentrifugation. Storing serum for 1 month at -70 degrees C resulted in reduced HDL3-cholesterol by ultracentrifugation and reduced total and HDL3-cholesterol by the DS/DS method. There was no change in either total HDL-cholesterol or HDL3-cholesterol with the HM/DS method. Additional studies involving only HM/DS indicated that total HDL-cholesterol in serum stored at 4 degrees C begins to decline after 3 days (-3.1 +/- 3.5%, P < 0.1). HDL was stable at -20 degrees C for 2 weeks but both total and HDL3-cholesterol decreased significantly after 1 month. Storage of serum at -70 degrees C resulted in no changes for 1 year; however, at 18 months, HDL3-cholesterol was reduced 13% (P = 0.002). We conclude that HDL subfractions can be determined accurately in serum as well as in plasma after storage at -70 degrees C for up to 1 year.

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