Results 81 to 90 of about 1,849,598 (165)

RNAiFold2T: Constraint Programming design of thermo-IRES switches

open access: yes, 2016
Motivation: RNA thermometers (RNATs) are cis-regulatory ele- ments that change secondary structure upon temperature shift. Often involved in the regulation of heat shock, cold shock and virulence genes, RNATs constitute an interesting potential resource ...
Clote, Peter   +6 more
core   +2 more sources

Mini-ribozymes and freezing environment: a new scenario for the early RNA world

open access: yes, 2005
International audienceThe RNA World hypothesis states that the present-day life, which is based on DNA genomes and protein enzymes, was preceded by a simpler life form based primarily on RNA.
Vlassov, A. V.
core   +1 more source

Ribozymes: the characteristics and properties of catalytic RNAs [PDF]

open access: yes, 2017
Ribozymes, or catalytic RNAs, were discovered a little more than 15 years ago. They are found in the organelles of plants and lower eukaryotes, in amphibians, in prokaryotes, in bacteriophages, and in viroids and satellite viruses that infect plants.
Tanner, N. Kyle
core  

The Implementation and Efficacy of Scientific Literature within an Introductory Biology Lecture Course:A Study in Pedagogy, Curricula, and Standards as They Apply to Post-Secondary Science Education [PDF]

open access: yes, 2009
The current study involved students enrolled in the Fall 2007 Biosc 0150 and Spring 2008 Biosc 0160 lecture sections of a single Faculty member. Most students were incoming freshmen, and their prior exposure to the natural sciences varied.
Tomaszewski, Shaun Allen
core  

Fourth Symposium on Chemical Evolution and the Origin and Evolution of Life [PDF]

open access: yes
This symposium was held at the NASA Ames Research Center, Moffett Field, California, July 24-27, 1990. The NASA exobiology investigators reported their recent research findings. Scientific papers were presented in the following areas: cosmic evolution of
Andersen, Dale T.   +3 more
core   +1 more source

A hammerhead ribozyme selects mechanically stable conformations for catalysis against viral RNA. [PDF]

open access: yesCommun Biol
Lu M   +11 more
europepmc   +1 more source

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