Results 31 to 40 of about 2,997,351 (334)

Rheological measurement of molecular weight distribution of polymers

open access: yese-Polymers, 2013
This paper has described a method to obtain the molecular weight distribution (MWD) of polymeric materials from their rheological data. The method has been developed for linear polymers with log normal molecular weight distribution.
Khak Maryam, Ramazani Ahmad
doaj   +1 more source

Polyethers for biomedical applications. Polymerization of propylene oxide by organozinc/organotin catalysts [PDF]

open access: yes, 1987
The polymerization of propylene oxide to obtain a high-molecular-weight polymer with an atactic structure required for the application as artificial blood vessels was investigated using combinations of organozinc and organotin compounds as catalyst.
Bantjes, Adriaan   +3 more
core   +2 more sources

THE MOLECULAR WEIGHT OF CRYSTALLINE CATALASE [PDF]

open access: yesJournal of Biological Chemistry, 1938
Sumner, James B., Gralen, N. The Molecular Weight of Crystalline Catalase, 1938 ; https://digitalcommons.rockefeller.edu/pamphlets-offprints-and-reprints/1046/thumbnail ...
Sumner, James B., Gralen, Nils
openaire   +2 more sources

The atmospheric circulation of the super Earth GJ 1214b: Dependence on composition and metallicity [PDF]

open access: yes, 2014
We present three-dimensional atmospheric circulation models of GJ 1214b, a 2.7 Earth-radius, 6.5 Earth-mass super Earth detected by the MEarth survey.
Fortney, Jonathan J.   +4 more
core   +2 more sources

Isolation of leptin hormone from plasma and molecular weight estimation using bio techniques [PDF]

open access: yesمجلة التربية والعلم, 2009
The research include the isolation of leptin hormone from plasma of female by gel filtration chromatography technique using separating column 1002Cm containing Sephadex G - 75 produced 5 bands where number 5 showed leptin concentration 0.5ng/ml.
Nawal Thnoon Youis   +2 more
doaj   +1 more source

Molecular Weight Dependent Glucose Lowering Effect of Low Molecular Weight Chitosan Oligosaccharide (GO2KA1) on Postprandial Blood Glucose Level in SD Rats Model [PDF]

open access: yes, 2013
This research investigated the effect of enzymatically digested low molecular weight (MW) chitosan oligosaccharide on type 2 diabetes prevention. Three different chitosan oligosaccharide samples with varying MW were evaluated in vitro for inhibition of ...
Apostolidis, Emmanouil   +7 more
core   +3 more sources

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

open access: yesFEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu   +17 more
wiley   +1 more source

A novel method for interfacial energy gap determination

open access: yesScientific Reports
A precise quantification of energy gap for a molecular semiconductor is crucial. However, there has always been a lack of a suitable method which results in an inaccurate measurement.
Xuehua Zhou   +4 more
doaj   +1 more source

Synthesis of polyethers of hexafluorobenzene and hexafluoropentanediol [PDF]

open access: yes, 1969
Two new polyethers, poly /hexafluoropentamethylene tetrafluoro-p-phenylene ether/ and a completely hydroxyl-terminated polyether, is prepared by reactions of hexafluorobenzene with hexafluoropentanediol.
Harrison, E. S.   +3 more
core   +1 more source

Gel chromatographic characterization of immunoreactive adrenocorticotropin in patients with ACTH hypersecretion [PDF]

open access: yes, 1989
We investigated the molecular size of circulating immunoreactive ACTH by gel chromatography in patients with ACTH hypersecretion due to various disorders of the hypothalamic-pituitary-adrenal axis.
A Chatelain   +19 more
core   +1 more source

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