Results 131 to 140 of about 304,702 (252)

Estimating the rank of the spectral density matrix [PDF]

open access: yes
The rank of the spectral density matrix conveys relevant information in a variety of statistical modelling scenarios. This note shows how to estimate the rank of the spectral density matrix at any given frequency.
Camba-MĂ©ndez, Gonzalo   +1 more
core  

High gene delivery efficiency of alkylated low-molecular-weight polyethylenimine through gemini surfactant-like effect

open access: yesInternational Journal of Nanomedicine, 2014
Shan Liu,1,2 Wei Huang,1,2 Ming-Ji Jin,1,2 Qi-Ming Wang,1,2 Gan-Lin Zhang,3 Xiao-Min Wang,3 Shuai Shao,1,2 Zhong-Gao Gao1,2 1State Key Laboratory of Bioactive Substance and Function of Natural Medicines, 2Department of Pharmaceutics, Institute of ...
Liu S   +7 more
doaj  

Two novel triazine-based quaternary ammonium salt Gemini surfactants as potential corrosion inhibitors for carbon steel in a sulfate-reducing bacteria solution: Experimental and theoretical studies

open access: yesHeliyon
In this paper, two triazine ring–containing quaternary ammonium salt Gemini surfactants (C12-2-C12 and C14-2-C14) were synthesized. The minimum inhibitory concentrations against sulfate-reducing bacteria (SRB) of C12-2-C12, C14-2-C14 and dodecyl dimethyl
Guofang Gao   +8 more
doaj  

Incorporation of cis-9,trans-11 or trans-10,cis-12 conjugated linoleic acid into plasma and cellular lipids in healthy men

open access: yesJournal of Lipid Research, 2004
This study investigated the incorporation of cis-9,trans-11 conjugated linoleic acid (c9,t11 CLA) and trans-10,cis-12-CLA (t10,c12 CLA) into plasma and peripheral blood mononuclear cell (PBMC) lipids when consumed as supplements highly enriched in these ...
Graham C. Burdge   +11 more
doaj  

The exact power envelope of tests for a unit root [PDF]

open access: yes
We show how to obtain the exact power envelope of tests for a unit root against trend-stationary alternatives, under normality. This is in contrast to the asymptotic power envelope derived by Elliott, Rothenberg and Stock (1996), and is used to indicate ...
King, Maxwell L., Podivinsky, Jan M.
core  

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