Results 261 to 270 of about 2,197,129 (300)
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High pressure fourier transform infrared spectroscopy of poly(dA)poly(dT), poly(dA) and poly(dT)

Biophysical Chemistry, 1999
The effect of hydrostatic pressure upon the DNA duplex, poly(dA)poly(dT), and its component single strands, poly(dA) and poly(dT) has been studied by fourier-transform infrared spectroscopy (FT-IR). The spectral data indicate that at 28 degrees C and pressures up to 12 kbar (1200 MPa) all three polymers retain the B conformation.
M C, Lin   +3 more
openaire   +2 more sources

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

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

Poly(oxyethylen)‐poly(oxypropylen)‐poly(oxyethylen)‐triblockcopolymere. Struktur und dynamik

Acta Polymerica, 1990
AbstractDas Löslichkeitsverhalten und die physikalische Natur des Trübungspunktes eines POE‐POP‐POE‐Triblockcopolymers in wäßriger Lösung werden mit verschiedenen experimentellen Methoden (Viskosimetrie, Grenzflächenspannungsund Dichtemessungen, Ultraschallgeschwindigkeits‐ und ‐absorptionsmessungen, statische und dynamische Lichtstreuung, Infrarot ...
S. Wartewig   +6 more
openaire   +1 more source

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

Poly(bisoxalamides)

The present invention generally relates to a poly(bisoxalamide) and a process for preparing and article comprising the poly(bisoxalamide).
Sijbrandi, N.J.   +3 more
openaire  

Novel extended donors: Poly(peri-naphthylenes), poly(tetrathiafulvalenes), poly(arylenevinylenes)

Synthetic Metals, 1991
Abstract Novel conjugated polymers are synthesized and the correlation between structure and physical properties is elucidated by comparison with suitable model oligomers. The electronic behavior is carefully tuned by creating linear, fulvalene-type and band-type π -conjugation.
openaire   +1 more source

Roles of mRNA poly(A) tails in regulation of eukaryotic gene expression

Nature Reviews Molecular Cell Biology, 2021
Lori Anne Passmore, Jeff Coller
exaly  

Poly-arginine

Nature, 1949
E, KATCHALSKI, P, SPITNIK
openaire   +2 more sources

POLY-LYSINE

Journal of the American Chemical Society, 1947
E, KATCHALSKI, I, GROSSFELD, M, FRANKEL
openaire   +2 more sources

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