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Articles 7861 - 7890 of 9534
Full-Text Articles in Entire DC Network
August 2, 1984 Cal Poly Report, Public Affairs Office
August 2, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Structure, Morphology And Crystal Growth Of Bacterial Magnetite, Stephen Mann, Richard B. Frankel, Richard P. Blakemore
Structure, Morphology And Crystal Growth Of Bacterial Magnetite, Stephen Mann, Richard B. Frankel, Richard P. Blakemore
Physics
Recent high-resolution transmission electron microscopy (HRTEM) studies of the structure and morphology of bacterial magnetite (Fe3O4) crystals isolated from a magnetotactic coccus1 and from an unidentified bacterium extracted from sediment2 have shown the crystals to be well ordered single-domain particles with a morphology based on a hexagonal prism of {011} faces truncated by specific low index planes. We report here a HRTEM study of intact magnetite crystals (magnetosomes) in the microaerophilic bacterium Aquaspirillum magnetotacticum, grown in pure culture3,4. Our aim has been to investigate the structure, morphology and crystal growth of …
Summer Mustang, July 26, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
July 19, 1984 Cal Poly Report, Public Affairs Office
July 19, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Summer Mustang, July 19, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Executive Committee - Agenda, 7/10/1984, Academic Senate
Executive Committee - Agenda, 7/10/1984, Academic Senate
Academic Senate Agendas
No abstract provided.
July 5, 1984 Cal Poly Report, Public Affairs Office
July 5, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
On Maximizing The Average Time At A Goal, S. Demko, Theodore P. Hill
On Maximizing The Average Time At A Goal, S. Demko, Theodore P. Hill
Research Scholars in Residence
In a decision process (gambling or dynamic programming problem) with finite state space and arbitrary decision sets (gambles or actions), there is always available a Markov strategy which uniformly (nearly) maximizes the average time spent at a goal. If the decision sets are closed, there is even a stationary strategy with the same property.Examples are given to show that approximations by discounted or finite horizon payoffs are not useful for the general average reward problem.
Magnetosome Dynamics In Magnetotactic Bacteria, S. Ofer, I. Nowik, E. R. Bauminger, G. C. Papaefthymiou, Richard B. Frankel, Richad P. Blakemore
Magnetosome Dynamics In Magnetotactic Bacteria, S. Ofer, I. Nowik, E. R. Bauminger, G. C. Papaefthymiou, Richard B. Frankel, Richad P. Blakemore
Physics
Diffusive motions of the magnetosomes (enveloped Fe3O4 particles) in the magnetotactic bacterium Aquaspirillum magnetotacticum result in a very broad-line Mössbauer spectrum (T ~ 100 mm/s) above freezing temperatures. The line width increases with increasing temperature. The data are analyzed using a bounded diffusion model to yield the rotational and translational motions of the magnetosomes as well as the effective viscosity of the material surrounding the magnetosomes. The results are <θ2>l/2 < 1.5° and <x2>1/2 < 8.4 Å for the rotational and translational motions, respectively, implying that the particles are fixed in whole cells. The effective viscosity is 10 cP at 295 K and increases with decreasing temperature. Additional Fe3+ material in the cell is shown to be associated with the magnetosomes. Fe2+ material in the cell appears to be …
June 21, 1984 Cal Poly Report, Public Affairs Office
June 21, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
June 7, 1984 Cal Poly Report, Public Affairs Office
June 7, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
California Polytechnic State University San Luis Obispo Catalog 1984-1986 Catalog, Academic Affairs, California Polytechnic State University - San Luis Obispo
California Polytechnic State University San Luis Obispo Catalog 1984-1986 Catalog, Academic Affairs, California Polytechnic State University - San Luis Obispo
Course Catalogs
No abstract provided.
Magnetic Guidance Of Organisms, Richard B. Frankel
May 24, 1984 Cal Poly Report, Public Affairs Office
May 24, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Academic Senate - Meeting Minutes, 5/22/1984, Academic Senate
Academic Senate - Meeting Minutes, 5/22/1984, Academic Senate
Academic Senate Minutes
No abstract provided.
May 17, 1984 Cal Poly Report, Public Affairs Office
May 17, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
May 3, 1984 Cal Poly Report, Public Affairs Office
May 3, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Mustang Daily, April 26, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, April 19, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Academic Senate - Agenda, 4/3/1984, Academic Senate
Academic Senate - Agenda, 4/3/1984, Academic Senate
Academic Senate Agendas
No abstract provided.
Basidiomycete Fungi Reported On Living Or Dead Giant Sequoia Or Coast Redwood, Douglas D. Piirto, John R. Parmeter, Jr., W. Wayne Wilcox
Basidiomycete Fungi Reported On Living Or Dead Giant Sequoia Or Coast Redwood, Douglas D. Piirto, John R. Parmeter, Jr., W. Wayne Wilcox
Natural Resources Management and Environmental Sciences
No abstract provided.
March 29, 1984 Cal Poly Reprot, Public Affairs Office
March 29, 1984 Cal Poly Reprot, Public Affairs Office
Cal Poly Report
No abstract provided.
March 26, 1984 Cal Poly Report Special Edition, Public Affairs Office
March 26, 1984 Cal Poly Report Special Edition, Public Affairs Office
Cal Poly Report
No abstract provided.
March 8, 1984 Cal Poly Report, Public Affairs Office
March 8, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Academic Senate - Agenda, 3/6/1984, Academic Senate
Academic Senate - Agenda, 3/6/1984, Academic Senate
Academic Senate Agendas
No abstract provided.
As-159-84 Resolution On The Visit Of Professor Uri Treisman, Academic Senate
As-159-84 Resolution On The Visit Of Professor Uri Treisman, Academic Senate
Academic Senate Resolutions
Senate supports the visit of Uri Trisman, a counselor to minorities in math and science.
Executive Committee - Agenda, 2/21/1984, Academic Senate
Executive Committee - Agenda, 2/21/1984, Academic Senate
Academic Senate Agendas
No abstract provided.
February 16, 1984 Cal Poly Report, Public Affairs Office
February 16, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Precipitation Of Fe3O4 In Magnetotactic Bacteria, Richard B. Frankel, Richard P. Blakemore
Precipitation Of Fe3O4 In Magnetotactic Bacteria, Richard B. Frankel, Richard P. Blakemore
Physics
The magnetotactic bacterium A. magnetotacticum contains ferrous ions, a low density hydrous ferric oxide, a high density hydrous ferric oxide (ferrihydrite) and Fe3O4, which is precipitated by partial reduction of the ferrihydrite precursor.
Mustang Daily, February 10, 1984
Mustang Daily, February 10, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.