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Full-Text Articles in Physical Sciences and Mathematics
Paleoenvironmental Analysis Of A Late-Holocene Subfossil Coleopteran Fauna From Starks, Maine, Heather A. Hall
Paleoenvironmental Analysis Of A Late-Holocene Subfossil Coleopteran Fauna From Starks, Maine, Heather A. Hall
Senior Scholar Papers
The Sandy River in central Maine Is flanked along much of its length by low terraces. Approximately 100 kg of sediment from one terrace in Starks, Somerset County, Maine was wet-sieved in the field. Over 1100 subfossil Coleoptera were recovered representing 53 individual species of a total of 99 taxa. Wood associated with the fauna is 2000 +/-80 14C Yr in age (1-16,038). The fauna is dominated by species characteristic of habitats apparent in modern central Maine. The subfossil assemblage is indicative of a wide vartety of environments including open ground (e.g., Harpalus pensylvanicus), dense forest (e.g., pterostichus honestus), aquatic …
Two-Dimensional Gel Electrophoretic Analysis Of Cellular Proteins From Escherichia Coli In The Presence Of Mutated And Homologous Genes For 4.5s Rna, Michael O'Loughlin
Two-Dimensional Gel Electrophoretic Analysis Of Cellular Proteins From Escherichia Coli In The Presence Of Mutated And Homologous Genes For 4.5s Rna, Michael O'Loughlin
Senior Scholar Papers
4.5S RNA is a small. stable, required molecule in Escherichia coli whose precise function is not known. Previous evidence suggests an involvement with the ribosome during translation. In this study, four base insertion and four base deletion mutations were constructed in a plasmid borne copy of the 4.55 RN A gene. These copies and two homologous genes from Pseudomonas aeruginosa and Thermus thermophilus were transformed into an E. coli strain which then had its only wild-type 4.5S RNA gene inactivated. In order to assess the effect of the alternative gene copies. the patterns of proteins synthesized in the presence of …
Enforcement In Environmental Law: An Economic Analysis Of Citizen Suits, Wendy S. Naysnerski
Enforcement In Environmental Law: An Economic Analysis Of Citizen Suits, Wendy S. Naysnerski
Senior Scholar Papers
Previous to 1970, state and federal agencies held exclusive enforcement responsibilities over the violation of pollution control standards. However, recognizing that the government had neither the time nor resources to provide full enforcement, Congress created citizen suits. Citizen suits, first amended to the Clean Air Act in 1970, authorize citizens to act as private attorney generals and to sue polluters for violating the terms of their operating permits. Since that time, Congress has included citizen suits in 13 other federal statutes. The citizen suit phenomenon is sufficiently new that little is known about it. However, we do know that citizen …
A Resource Inventory And Impact Analysis Of Great Bog And The Horse Point Delta/Esker System, Problems In Environmental Science Course (Biology 493), Colby College, Biologists Organized For Ecosystem Assessment, Colby College
A Resource Inventory And Impact Analysis Of Great Bog And The Horse Point Delta/Esker System, Problems In Environmental Science Course (Biology 493), Colby College, Biologists Organized For Ecosystem Assessment, Colby College
Colby College Watershed Study: Other Area Studies
In May of 1990, Tilcon-Maine, Inc. submitted an application to mine gravel on the east side of Horse Point Road on Horse Point in the Town of Belgrade. The project site covers 46 acres and the proposed excavation covers 16 acres. An estimated 740,000 cubic yards of material will be removed over a period of six or seven years (Pfister, pers. comm.). According to Tilcon (Timson et al., 1990) the maximum depth of the pit will be 78 feet and the bottom of the pit will be a minimum of 6 feet above the water table. At the present time …