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University of New Hampshire

1992

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Calcium Ions Are Involved In Escherichia Coli Chemotaxis, Louis S. Tisa, Julius Adler Dec 1992

Calcium Ions Are Involved In Escherichia Coli Chemotaxis, Louis S. Tisa, Julius Adler

Molecular, Cellular & Biomedical Sciences

Escherichia coli regulates intracellular free Ca2+ at about 90 nM [Gangola, P. & Rosen, B. P. (1987) J. Biol. Chem. 262, 12570-12574]. To increase intracellular free Ca2+, nitr-5/Ca2+, a "caged" Ca2+ compound, was electroporated into cells and then its affinity for Ca2+ was reduced by exposure to 370-nm light. Upon release of the Ca2+ ions, the cells tumbled. Studies on mutant strains showed that the receptor proteins (methyl-accepting chemotaxis proteins, MCPs) were not required for the Ca(2+)-induced tumbling but that CheA, CheW, and CheY proteins were required. Similar results were obtained with DM-nitrophen/Ca2+, another caged calcium compound that releases Ca2+ …


The New Hampshire, Vol. 83, No. 26 (Dec. 11, 1992), The New Hampshire Dec 1992

The New Hampshire, Vol. 83, No. 26 (Dec. 11, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 25 (Dec. 8, 1992), The New Hampshire Dec 1992

The New Hampshire, Vol. 83, No. 25 (Dec. 8, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 24 (Dec. 4, 1992), The New Hampshire Dec 1992

The New Hampshire, Vol. 83, No. 24 (Dec. 4, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


Downhole Logging As A Paeoceanographic Tool On Ocean Drilling Program Leg 138: Interface Between High-Resolution Stratigraphy And Regional Syntheses, Mitchell Lyle, Larry A. Mayer, Nicklas G. Pisias, T. K. Hagelberg, Kathleen A. Dadey, Stephen F. Bloomer, Shipboard Scientific Party Dec 1992

Downhole Logging As A Paeoceanographic Tool On Ocean Drilling Program Leg 138: Interface Between High-Resolution Stratigraphy And Regional Syntheses, Mitchell Lyle, Larry A. Mayer, Nicklas G. Pisias, T. K. Hagelberg, Kathleen A. Dadey, Stephen F. Bloomer, Shipboard Scientific Party

Affiliate Scholarship

On Ocean Drilling Program (ODP) Leg 138, standard shipboard procedures were modified to allow for the real-time monitoring of several laboratory core-scanning systems that provide centimeter-scale measurements of saturated bulk density, magnetic susceptibility and digital color reflectance. These continuous, high-resolution data sets were used to ensure the proper offset of multiple holes and to splice together complete sedimentary sections. Typically, the spliced, continuous sediment sections were found to be about 10% longer than the section drilled, as measured by the length of the drill string. While the source of this elongation is not yet fully understood, it must be compensated …


American Square Dance Vol. 47, No. 12 (Dec. 1992), Sanborn, Jon, Sanborn, Susan Dec 1992

American Square Dance Vol. 47, No. 12 (Dec. 1992), Sanborn, Jon, Sanborn, Susan

American Squares

Monthly square dance magazine that began publication in 1945.


Downhole Logging As A Paeoceanographic Tool On Ocean Drilling Program Leg 138: Interface Between High-Resolution Stratigraphy And Regional Syntheses, Mitchell Lyle, Larry A. Mayer, Nicklas G. Pisias, T. K. Hagelberg, Kathleen A. Dadey, Stephen F. Bloomer Dec 1992

Downhole Logging As A Paeoceanographic Tool On Ocean Drilling Program Leg 138: Interface Between High-Resolution Stratigraphy And Regional Syntheses, Mitchell Lyle, Larry A. Mayer, Nicklas G. Pisias, T. K. Hagelberg, Kathleen A. Dadey, Stephen F. Bloomer

Center for Coastal and Ocean Mapping

On Ocean Drilling Program (ODP) Leg 138, standard shipboard procedures were modified to allow for the real-time monitoring of several laboratory core-scanning systems that provide centimeter-scale measurements of saturated bulk density, magnetic susceptibility and digital color reflectance. These continuous, high-resolution data sets were used to ensure the proper offset of multiple holes and to splice together complete sedimentary sections. Typically, the spliced, continuousediment sections were found to be about 10% longer than the section drilled, as measured by the length of the drill string. While the source of this elongation is not yet fully understood, it must be compensated for …


The New Hampshire, Vol. 83, No. 23 (Nov. 24, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 23 (Nov. 24, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 22 (Nov. 20, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 22 (Nov. 20, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 21 (Nov. 17, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 21 (Nov. 17, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 20 (Nov. 13, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 20 (Nov. 13, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


Changes In The Structure Of A New England (Usa) Kelp Bed: The Effect Of An Introduced Species?, Walter J. Lambert, Phillip S. Levin, Jody Berman Nov 1992

Changes In The Structure Of A New England (Usa) Kelp Bed: The Effect Of An Introduced Species?, Walter J. Lambert, Phillip S. Levin, Jody Berman

Jackson Estuarine Laboratory

Since its first observation in the Gulf of Maine (Northwest Atlantic) in 1987, the epiphytic bryozoan Membranipora membranacea has become the dominant epiphyte on laminarian kelps. This note describes changes in the structure of a kelp bed at Cape Neddick (Mane, USA) after the coincident increase of M. membranacea, evaluates the potential causes of the observed changes, and documents the shortterm recovery of the kelp bed. Percent cover, length and density of kelps decreased significantly during 1989 through 1991 The dispersion of Laminaria spp. within the kelp bed was clumped on each sampling date at a large spatial scale (meters), …


The New Hampshire, Vol. 83, No. 19 (Nov. 10, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 19 (Nov. 10, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 18 (Nov. 6, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 18 (Nov. 6, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 17 (Nov. 3, 1992), The New Hampshire Nov 1992

The New Hampshire, Vol. 83, No. 17 (Nov. 3, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The Spatial Variation Of Asian Dust And Marine Aerosol Contributions To Glaciochemical Signals In Central Asia, Cameron P. Wake, Paul A. Mayewski Nov 1992

The Spatial Variation Of Asian Dust And Marine Aerosol Contributions To Glaciochemical Signals In Central Asia, Cameron P. Wake, Paul A. Mayewski

Earth Sciences

Short-term (6 months to 17 years) glaciochemical records have been collected from several glacier basins in the mountains of central Asia. The spatial distribution of snow chemistry in central Asia is controlled by the influx of dust from the large expanse of arid and semiarid regions in central Asia. Glaciers in the Northern and Western Tibetan Plateau show elevated concentrations and elevated annual fluxes of calcium, sodium, chloride, sulphate and nitrate due to the influx of desert dust from nearby arid and semi-arid regions. Glaciers in the Southeastern Tibetan Plateau show lower concentrations and lower annual fluxes of major ions …


Plantsman, Oct/Nov 1992, New Hampshire Plant Growers' Association Nov 1992

Plantsman, Oct/Nov 1992, New Hampshire Plant Growers' Association

Plantsman

A newsletter of the New Hampshire Plant Growers' Association


American Square Dance Vol. 47, No. 11 (Nov. 1992), Sanborn, Jon, Sanborn, Susan Nov 1992

American Square Dance Vol. 47, No. 11 (Nov. 1992), Sanborn, Jon, Sanborn, Susan

American Squares

Monthly square dance magazine that began publication in 1945.


Beryllium 7 And Lead 210 In The Western Hemisphere Arctic Atmosphere: Observations From Three Recent Aircraft-Based Sampling Programs, Jack E. Dibb, R. Talbot, G L. Gregory Oct 1992

Beryllium 7 And Lead 210 In The Western Hemisphere Arctic Atmosphere: Observations From Three Recent Aircraft-Based Sampling Programs, Jack E. Dibb, R. Talbot, G L. Gregory

Earth Sciences

Concentrations of the natural radionuclides 7Be and 210Pb were determined in aerosol samples collected in the western hemisphere Arctic during the recent NOAA Arctic Gas and Aerosol Sampling Program (AGASP 3) and NASA Global Tropospheric Experiment/Arctic Boundary Layer Expeditions (GTE/ABLE 3A and ABLE 3B) missions. Beryllium 7 showed a free tropospheric concentration maximum between 4 and 5 km in the summer of 1990. Previous 7Be data obtained in the late 1950s and early 1960s also indicated a similar vertical distribution of 7Be near 70°N. Injection of stratospheric air through tropopause folds associated with the Arctic jet …


The New Hampshire, Vol. 83, No. 16 (Oct. 30, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 16 (Oct. 30, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 15 (Oct. 27, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 15 (Oct. 27, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 14 (Oct. 23, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 14 (Oct. 23, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 13 (Oct. 20, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 13 (Oct. 20, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 12 (Oct. 16, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 12 (Oct. 16, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 11 (Oct. 13, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 11 (Oct. 13, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The Ecology Of The Great Bay Estuary, New Hampshire And Maine: An Estuarine Profile And Bibliography, Frederick T. Short Oct 1992

The Ecology Of The Great Bay Estuary, New Hampshire And Maine: An Estuarine Profile And Bibliography, Frederick T. Short

PREP Reports & Publications

No abstract provided.


The New Hampshire, Vol. 83, No. 10 (Oct. 9, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 10 (Oct. 9, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 09 (Oct. 6, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 09 (Oct. 6, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


The New Hampshire, Vol. 83, No. 08 (Oct. 2, 1992), The New Hampshire Oct 1992

The New Hampshire, Vol. 83, No. 08 (Oct. 2, 1992), The New Hampshire

The New Hampshire Print Edition

The student publication of the University of New Hampshire.


American Square Dance Vol. 47, No. 10 (Oct. 1992), Sanborn, Jon, Sanborn, Susan Oct 1992

American Square Dance Vol. 47, No. 10 (Oct. 1992), Sanborn, Jon, Sanborn, Susan

American Squares

Monthly square dance magazine that began publication in 1945.