Results 1 to 10 of about 740,120 (268)
Some of the next articles are maybe not open access.

Hole polarons in poly(G)-poly(C) and poly(A)-poly(T) DNA molecules

Science in China Series B: Chemistry, 2008
The polaron might play an important role in the process of charge migration through duplex DNA stack. In the present work, we investigate properties of hole polarons in DNA molecules containing identical base pairs, such as poly(G)-poly(C) and poly(A)-poly(T), An extended tight-binding model (extended Su-Schrieffer-Heeger model), which involves the ...
Peng Cui   +3 more
openaire   +1 more source

The Pre-polis Polis

2002
Abstract This chapter considers what was going on in ancient Greece three hundred years before there was any democracy. It shows that just as you could succeed without monarchy, so you could get on without groups of basileia congregating at out-of-the-way cult places.
openaire   +1 more source

Poly reunion

Nursing Standard, 1988
I'm hoping to contact the group of students that did the Clinical Teaching course at the South Bank Polytechnic London in 1978 (Jan to July) about our ten year reunion.
openaire   +2 more sources

Electrical Conduction through Poly(dA)-Poly(dT) and Poly(dG)-Poly(dC) DNA Molecules

Physical Review Letters, 2001
We report direct measurements of electrical transport through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules containing identical base pairs. The observed experimental results suggest that electrical transport through DNA molecules occurs by polaron hopping. We have also investigated the effect of gate voltage on the current-voltage curve.
K H, Yoo   +8 more
openaire   +2 more sources

Methylene blue intercalates with triplex poly(dT)*poly(dA)·poly(dT) but not duplex poly(dA)·poly(dT)

J. Chem. Soc., Chem. Commun., 1995
Methylene blue intercalates with triplex poly(dT*dA·dT) even though it binds to the precursor duplex poly(dA·dT) in the major groove; the switch may be related to conformational modifications of the polynucleotide structure upon binding of the third strand.
Eimer Tuite, Bengt Nordén
openaire   +1 more source

The immunogenic properties of poly(dI)·poly(dC) and poly(rI)·poly(dC)—analysis by monoclonal antibodies

Molecular Immunology, 1986
Eight monoclonal antibodies were prepared from a C57/black mouse which had been immunized with poly(rI).poly(dC). Two of the antibodies were specific for the RNA-DNA duplex but bound about 100-fold better to poly(rI).poly(dC) than to poly(rA).poly(dT). The other six antibodies were single-strand specific and bound to poly(rI) and in most cases to poly ...
R P, Braun, M L, Woodsworth, J S, Lee
openaire   +2 more sources

Poly-Friendships

Journal of Lesbian Studies, 1999
SUMMARY In contrast to the monogamous model for sexual relationships (including those of lesbians) in western society, friendships are permitted to be polyamorous. However, friendships do not receive the level of salience and priority that sexual relationships do. This article focuses on three issues that keep lesbians from prioritizing friendships: (1)
openaire   +2 more sources

Synthesis and coding properties of poly(c1A), poly(c3A), poly(c7A) and poly(h6A)

Biochemical and Biophysical Research Communications, 1973
Abstract The homopolynucleotides poly(c1A), poly(c3A), poly(c7A) and poly(h6A) ++ were synthesized from their corresponding nucleoside diphosphates using polynucleotide phosphorylase. With the exception of poly(h6A), which displayed no hypochromicity, the homopolynucleotides showed melting profiles similar to poly(A). All these polynucleotides, poly(
L, Hagenberg, H G, Gassen, H, Matthaei
openaire   +2 more sources

Proton exchange and base-pair kinetics of poly(rA) · poly(rU) and poly(rI) · poly(rC)

Journal of Molecular Biology, 1985
Proton exchange of poly(rA).poly(rU) and poly(rI).poly(rC) has been studied by nuclear magnetic resonance line broadening and saturation transfer from H2O. Five exchangeable peaks are observed. They are assigned to the imino, amino and 2'-OH ribose protons. The aromatic spectrum is also assigned.
J L, Leroy, D, Broseta, M, Guéron
openaire   +2 more sources

The helix–coil transitions of poly (dA). Poly (dT) and poly (dA‐dT). Poly (dA‐dT)

Biopolymers, 1972
AbstractHelix–coil transition curves are calculated for poly (dA) poly(dT) and poly (dA‐dT) poly (dA‐dT) using the integral equation approach of Goel and Montroll.5 The transitions are described by the loop entropy model with the exponent of the loop entropy factor, k, remaining an arbitrary constant.
openaire   +2 more sources

Home - About - Disclaimer - Privacy