Results 51 to 60 of about 20,918,698 (229)

Polyimides containing the cyclobutene-3,4-dione moiety [PDF]

open access: yes, 1993
In the present invention, linear aromatic polyimides containing the cyclobutene-3,4-dione moiety were produced from the reaction of a substituted or unsubstituted 1,2-bis(4-aminoanilino) cyclobutene-3,4-dione (SQDA) with various aromatic dianhydrides ...
St.clair, Terry L.
core   +1 more source

The subnuclear localization of tRNA ligase in yeast [PDF]

open access: yes, 1987
Yeast tRNA ligase is an enzyme required for tRNA splicing. A study by indirect immune fluorescence shows that this enzyme is localized in the cell nucleus. At higher resolution, studies using indirect immune electron microscopy show this nuclear location
Abelson, John, Clark, Michael W.
core   +1 more source

Actuators based on intrinsic conductive polymers/carbon nanoparticles nanocompositesElectroactive Polymer Actuators and Devices (EAPAD) 2013 [PDF]

open access: yes, 2013
New polyaniline (PANi) synthesis was performed starting from non-toxic N-phenil-p-phenylenediamine (aniline dimer) using reverse addition of monomer to oxidizing agent, the synthesis allows to produce highly soluble PANi. Several types of doped PANi were
Accardo, Daisy   +6 more
core   +1 more source

Manganese-containing mixed oxide electrodes as anode materials for degradation of model organic pollutants [PDF]

open access: yes, 2017
Mixed oxide thin film electrodes have been prepared by thermal decomposition from alcoholic solution on Pt substrate. In particular, three different anodes have been obtained by co-deposition of Ru (Ruthenium) and Mn (Manganese) oxides, Ru, Mn and Cu ...
Montanaro, Daniele   +3 more
core   +1 more source

Synergistic effect p-phenylenediamine and n,n diphenylthiourea on the electrochemical corrosion behaviour of mild steel in dilute acid media [PDF]

open access: yes, 2015
Electrochemical studies of the synergistic effect of p-phenylenediamine and n,n diphenylthiourea (TPD) as corrosion inhibitor of mild steel in dilute sulphuric and hydrochloric acid through weight loss and potentiodynamic polarization at ambient ...
A Döner   +36 more
core   +1 more source

Effect of Antibiotics, Anesthetics, Sugars and Saltson The Oxidation Activity of Human Ceruloplasmin in vitro [PDF]

open access: yesEngineering and Technology Journal, 2016
The optimum conditions for Ceruloplasmin (CP) activity have been measured in serum samples of a healthy individual without any detectable diseases. CP activity was evaluated by measurement of its p-phenylenediamine oxidase activity. This study showed the
Ali Al - Sa'ady, Dalal S. Bedan
doaj   +1 more source

Ultraviolet and thermally stable polymer compositions [PDF]

open access: yes, 1976
A new class of polymers is provided, namely, poly (diarylsiloxy) arylazines. These novel polymers have a basic chemical composition which has the property of stabilizing the optical and physical properties of the polymer against the degradative effect of
Adamson, M. J.   +3 more
core   +1 more source

Hair-Template Confinement Assembly of Nanomaterials Enables a Robust Single-Hair Surface-Enhanced Raman Spectrocopy Platform for Trace Analysis

open access: yesNanomaterials
Surface-enhanced Raman spectroscopy (SERS) enables ultra-sensitive molecular detection and has broad analytical and biomedical applications; recent advances focus on high-performance substrates and innovative detection strategies.
Miao Qin   +4 more
doaj   +1 more source

Visualization of the distribution of autophosphorylated calcium/calmodulin-dependent protein kinase II after tetanic stimulation in the CA1 area of the hippocampus [PDF]

open access: yes, 1997
Autophosphorylation of calcium/calmodulin-dependent protein kinase II (CaMKII) at threonine-286 produces Ca2+-independent kinase activity and has been proposed to be involved in induction of long-term potentiation by tetanic stimulation in the ...
Harris, Kristen M.   +4 more
core   +2 more sources

Nationwide occurrence and prioritization of tire additives and their transformation products in lake sediments of China

open access: yesEnvironment International
As a group of emerging contaminants of global concern, tire additives and their transformation products (TATPs) are causing a severe threat to aquatic ecosystems, particularly the highly lethal effects of N-(1,3-dimethylbutyl)-N’-phenyl-p ...
Li-Jun Zhou   +11 more
doaj   +1 more source

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