Group items tagged

Save these for later this year. You will likely use resources like this to aid in your diagrams/models for your display.

"The environmental impacts of such actions were potentially devastating in retrospect. And ultimately, they had little influence on the long-term prevalence of plague. "

A new NIH product that includes free-to-use biological art

"Abstract The decapitated primary root of 3-day-old Alaska pea seedlings has been used as a test system to determine the activities on lateral root formation of six auxins, six cytokinins and several other naturally-occurring compounds. Their effects were assessed on (1) the initiation of lateral root primordia, (2) the emergence of visible lateral roots, and (3) the elongation of these laterals. All the auxins, at the optimum concentration of 10-4M, promoted the initiation of lateral root primordia, and all except 3-indolylpropionic acid inhibited the elongation of the resulting lateral roots. Their effects on the emergence of laterals were small and varied. All the cytokinins, at 10-6M and above, inhibited both the initiation and the emergence of lateral roots, zeatin being the most powerful inhibitor. The emergence process was about twice as sensitive as the initiation of primordia to the presence of cytokinins. The cytokinin ribosides were generally less active than the free bases. Abscisic acid and xanthoxin inhibited both emergence and elongation, the concentration for 50% decrease of emergence being about 10-4M. Gibberellic acid had little clear effect on any of the three criteria. Nicotinic acid and thiamine at 10-3M promoted both the initiation of primordia and their emergence: pyridoxal phosphate stimulated both emergence and elongation but did not influence the initiation of primordia. Adenine and guanine had little effect but decreased root elongation some 25%. The strong inhibiting effect of the cytokinins may well be the basis for the marked inhibition exerted by the root-tip on lateral root formation, while the promoting effects of auxins may explain the previously observed promotion of lateral root formation by the young shoot and cotyledons."

Link on the left here for free download of a PDF book about the nature of science, discovery, and research. This would make a great summer read!

(A pretty fancy piece of equipment is needed here, but I like the concept of this sort of project. Rigorous life science concepts, ability to generate a ton of data, super applicable to real life immediately, etc.)

This is a digital version of a fair- almost like being there