Chemosensory behaviour of Tetrahymena

Article Abstract:

Observations on Tetrahymena cells gliding on gelatine gels show both directed and random responses toward chemoattractants. The latter include proteins and peptides, most particularly the hydrophobic amino acids L-Phenylalanine, L-cysteine, L-histidine and L-leucine. When they communicate with the cell surface recognition site at the anterior pole, the organism migrates according to the direction of contact by the chemotactic factor.

Analysis, Behavior, Chemotaxis, Cell motility, Protozoa, Protozoans, Ciliata, Ciliates

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A twinge of tax: Michigan

Article Abstract:

Michigan Governor John Engler's budget proposal includes a plan to reduce property taxes, compensated for by a 50% increase in sales tax. The increase would require a constitutional amendment, and the higher sales tax would benefit public schools.

Taxation, Economic policy, Michigan, Engler, John

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Raising a ruckus

Article Abstract:

The work of The Ruckus Society in training activists for nonviolent protests is examined in detail.

Training, Study and teaching, Political activists, Activists, Nonviolence

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