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Articles 4261 - 4290 of 7599
Full-Text Articles in Entire DC Network
Toward A Sustainable Tourism And Recreation Industry In Montana: An Examination Of Concepts And Industry Perceptions , Stephen F. Mccool, Chuck Burgess, Norma P. Nickerson
Toward A Sustainable Tourism And Recreation Industry In Montana: An Examination Of Concepts And Industry Perceptions , Stephen F. Mccool, Chuck Burgess, Norma P. Nickerson
Institute for Tourism and Recreation Research Publications
Addresses the issue of sustainable tourism in Montana in terms of what sustainable tourism means, how to make tourism sustainable, and what tourism should sustain. Literature addresses these questions as well as perceptions by the industry.
Tropical Instability Wave Energetics: Observations From The Tropical Instability Wave Experiment, L. Qiao, Robert H. Weisberg
Tropical Instability Wave Energetics: Observations From The Tropical Instability Wave Experiment, L. Qiao, Robert H. Weisberg
Marine Science Faculty Publications
Ocean velocity data from an array of subsurface moorings deployed from May 1990 to June 1991 during the Tropical Instability Wave Experiment are used to study the energetics of planetary waves in the vicinity of the equator at 140 degrees W. Such waves, observed from August to December 1990, were initiated by barotropic instability arising primarily from the cyclonic shear region of the South Equatorial Current and Equatorial Undercurrent just north of the equator. Subsequently, local barotropic production continued to maintain and modulate these tropical instability waves through a combination of cyclonic shear and meridional velocity component divergence just north …
Racial Disparities In The Delivery Of Health Care, Barbara A. Noah
Racial Disparities In The Delivery Of Health Care, Barbara A. Noah
San Diego Law Review
This article focuses on the role of conscious and unconscious bias in the delivery of health care. Racial disparities of a range of health care services are illustrated, including drug therapy, Medicare services, and organ transplantation. Methodological challenges to measuring such disparities are also addressed, as are sociological factors influencing disparities. Statutory and constitutional remedies are suggested to redress inequities. The author concludes, however, prospective approaches, such as regulation and education, are the most promising avenues to solving racial disparities in health care delivery.
University Of San Diego News Print Media Coverage 1998.02, University Of San Diego Office Of Communications And Marketing
University Of San Diego News Print Media Coverage 1998.02, University Of San Diego Office Of Communications And Marketing
Print Media Coverage (1947-2009)
Printed clippings housed in folders with a table of contents arranged by topic.
The Register, 1998-01-31, North Carolina Agricutural And Technical State University
The Register, 1998-01-31, North Carolina Agricutural And Technical State University
NCAT Student Newspapers
No abstract provided.
Enhanced Terahertz Pulse Generation And Detection Using Electric Field Singularities In Photo-Conducting Antennas, Yi Cai
Dissertations
In recent years, generation of ultra-short electromagnetic pulses with frequency components in the terahertz (THz) range has been achieved by various techniques. Among those different methods, photo-conducting antennas have proven to be the most efficient source of THz radiation. THz spectrometers utilizing such photo-conducting antennas as transmitters and receivers are meanwhile routinely used for spectroscopic studies in the frequency regime between 0.1 to 5THz, which can be covered by neither conventional optical nor microwave spectrometers. However, THz emission power from the existing photo-conducting antenna is not sufficient for many applications (such as electro-optic sampling for real time THz detection and …
Biodegradation Of Pah Contaminated Soil And Sludge Using Non-Ionic Surfactants, Seema Narula
Biodegradation Of Pah Contaminated Soil And Sludge Using Non-Ionic Surfactants, Seema Narula
Dissertations
Polycyclic aromatic hydrocarbons (PAHs) are one of the most prevalent environmental pollutants contaminating a large number of industrial and Superfund sites. Low solubility and sorption to solid surfaces limit biodegradation rates of PAHs in the environment. Bioremediation of these compounds have been previously tested with partial success. In the present study, aerobic biodegradation of three PAHs (fluorene, phenanthrene, and pyrene) has been studied in shaker flasks, batch fermenter, and bioslurry reactor, in the presence of non-ionic surfactants. A mixed bacterial culture derived from both a refinery sludge and an activated sludge was used as the seed population in the degradation …
Effects Of Surfactants And Fenton's Reagents On Extraction And Destruction Of Phenanthrene In Spiked Sand, Ming-Chin Chang
Effects Of Surfactants And Fenton's Reagents On Extraction And Destruction Of Phenanthrene In Spiked Sand, Ming-Chin Chang
Dissertations
In this study, surfactants and Fenton's reagents (Fe(II) and H202) ere proposed to solve contaminated site problems in situ on a lab scale. Phenanthrene is a simple PAHs (polynuclear aromatic hydrocarbons). The phenanthrene spiked ottawa sand simulated contaminated soil. HPLC was used for phenanthrene analysis because it provided excellent separation and no interference. Six surfactants (including nonionic and ionic) were tested. The operating conditions were optimized based on process and economic considerations such as reaction time, mixing speed, concentrations of surfactants and concentrations of Fenton's reagents. Surfactants could effectively dissolve phenanthrene from the spiked sand. In …
Proactive Technique For Workplace Chemical Exposure, James A. Duru
Proactive Technique For Workplace Chemical Exposure, James A. Duru
Theses
The rapid increase in the number and quantities of chemicals released into the environment has been accompanied by a lack of adequate pre-released testing for advance health outcomes. Chemicals which serve as feed stock to millions of industries all around the world to produce and process food, cosmetics, equipment, and energy to propel industries, automobiles, home heating and electricity have serious adverse health consequences. They are hazardous. These substances can explode, ignite, react and corrode. Adapting the definition of the international program on chemical safety, a "hazard" is a source of danger. This thesis proposes some proactive prevention techniques useful …
Melt Hydroperoxidation Polypropylene With Potential Application In Pollution Control, Zeena Cherian
Melt Hydroperoxidation Polypropylene With Potential Application In Pollution Control, Zeena Cherian
Theses
The primary objective of this study is to introduce tertiary hydroperoxide functional groups into polypropylene (PP) melt by injecting air. This was done first by mixing additive free polypropylene powder with air in a batch mixer. The influence of air flow rate, temperature, mixing time and rotor RPM on the concentration of hydroperoxide groups were studied. Iodometric analysis and fourier transform infrared spectroscopic analysis were the techniques used to detect and quantify the concentration of hydroperoxide groups. In the second phase of the study, hydroperoxide groups were introduced in polypropylene through reactive processing in a single screw extruder. It was …
A Simple Neural Agent Communicating Through Sets, James P. Stanski
A Simple Neural Agent Communicating Through Sets, James P. Stanski
Theses
Networked agents of the simplest kind offer the power of cooperative problem solving through parallel operation along with tight packaging potential. Such agents are self-contained analog machines capable of only a few primitive intelligent operations. In this thesis, a design will be developed for a simple agent capable of sending, receiving, and processing information in a environment where agents are coupled together. This environment imposes unorchestrated simultaneous input while expecting a useful timely response. Successful collaboration in these conditions is accomplished through sets encoded within pulse ensembles. The simplicity of the set definition is an inviting candidate for message communication …
Volume 35, Number 31: January 30, 1998, University Of North Dakota
Volume 35, Number 31: January 30, 1998, University Of North Dakota
University Letter Archive
No abstract provided.
The Bates Student - Volume 127 Number 12 - January 30, 1998, Bates College
The Bates Student - Volume 127 Number 12 - January 30, 1998, Bates College
The Bates Student
No abstract provided.
Randomly Amplified Polymorphic Dna Analysis (Rapd) Of Artemisia Subgenus Tridentatae Species And Hybrids, E. Durant Mcarthur, Joann Mudge, Renée Van Buren, W. Ralph Andersen, Stewart C. Sanderson, David G. Babbel
Randomly Amplified Polymorphic Dna Analysis (Rapd) Of Artemisia Subgenus Tridentatae Species And Hybrids, E. Durant Mcarthur, Joann Mudge, Renée Van Buren, W. Ralph Andersen, Stewart C. Sanderson, David G. Babbel
Great Basin Naturalist
Species of Artemisia (subgenus Tridentatae) dominate much of western North America. The genetic variation that allows this broad ecological adaptation is facilitated by hybridization and polyploidization. Three separate studies were performed in this group using randomly amplified polymorphic DNA (RAPD). Fifty-seven 10-mer primers generated nearly 400 markers from genomic DNA obtained from leaf tissue. These studies were (1) a measure of the variability of plants within and between populations and between subspecies using 5 A. tridentata ssp. wyomingensis populations, 2 A. cana ssp. cana populations, and 1 A. cana ssp. viscidula population; (2) an examination of the hypothesis that …
Few And Far Between: Moments In The North American Desert By John Martin Campbell, Andrew H. Barnum
Few And Far Between: Moments In The North American Desert By John Martin Campbell, Andrew H. Barnum
Great Basin Naturalist
No abstract provided.
Habitat Use By Small Mammals In Southeastern Utah, With Reference To Mexican Spotted Owl Management, Maite Sureda, Michael L. Morrison
Habitat Use By Small Mammals In Southeastern Utah, With Reference To Mexican Spotted Owl Management, Maite Sureda, Michael L. Morrison
Great Basin Naturalist
We determined temporal and spatial differences in abundance and habitat use by small mammals in southeastern Utah as part of an effort to enhance management of the Mexican Spotted Owl (Strix occidentalis lucida), listed by the federal government as threatened. Woodrats (Neotoma spp.) were captured only in canyons and most frequently in the pinyon-juniper (Pinus edulis–Juniperus osteosperma) vegetation type. White-footed mice (Peromyscus spp.) were found in a variety of vegetation types in both canyons and mesas. The deer mouse (P. maniculatus) was generally the most frequently captured species among vegetation types. We …
Comparative Issues Of Selection In Europe: The Case Of Greece, Dionysios Gouvias
Comparative Issues Of Selection In Europe: The Case Of Greece, Dionysios Gouvias
Education Policy Analysis Archives (EPAA)
This article deals with inequality of access to higher education in Greece, and especially, the case of the Metropolitan Area of Athens. Specifically, I deal with a general overview of the debates about "selection" in the educational systems of Europe, with special reference to the case of Greece. It is argued here that in those levels of the educational "ladder" where the degree of specialisation and the need for individual selection is insignificant, inequalities exist, but are not profound. ...
The Murray Ledger And Times, January 30, 1998, The Murray Ledger And Times
The Murray Ledger And Times, January 30, 1998, The Murray Ledger And Times
The Murray Ledger & Times
No abstract provided.
The Tiger Vol. 91 Issue 13 1998-01-30, Clemson University
The Tiger Vol. 91 Issue 13 1998-01-30, Clemson University
Tiger Newspapers
No abstract provided.
Education Policy Analysis Archives 06/04 , Arizona State University, University Of South Florida
Education Policy Analysis Archives 06/04 , Arizona State University, University Of South Florida
College of Education Publications
Comparative issues of selection in Europe : the case of Greece / Dionysios Gouvias.
Identity Of Mertensia Oblongifolia (Nutt.) G. Don (Boraginaceae) And Its Allies In Western North America, Ahmed M. Warfa
Identity Of Mertensia Oblongifolia (Nutt.) G. Don (Boraginaceae) And Its Allies In Western North America, Ahmed M. Warfa
Great Basin Naturalist
The current status of Mertensia oblongifolia (Nutt.) G. Don and its allied taxa is surveyed. On the bases of continuously coherent morphological characters and/or regionally correlated variations, more than 30 taxa, including species, subspecies, varieties, and 1 forma, previously considered different from M. oblongifolia, are now placed under synonymy of this species. Those taxa currently known as M. fusiformis Greene, M. bakeri Greene, and M. bakeri var. osterhoutii Williams are among the new synonyms. Typification, taxonomy, and morphological problems of M. oblongifolia are discussed.
Western Wood-Pewees Accept Cowbird Eggs, David R. Curson, Christopher B. Goguen, Nancy E. Mathews
Western Wood-Pewees Accept Cowbird Eggs, David R. Curson, Christopher B. Goguen, Nancy E. Mathews
Great Basin Naturalist
No abstract provided.
Late Pleistocene Microtine Rodents From Snake Creek Burial Cave, White Pine County, Nevada, Christopher J. Bell, Jim I. Mead
Late Pleistocene Microtine Rodents From Snake Creek Burial Cave, White Pine County, Nevada, Christopher J. Bell, Jim I. Mead
Great Basin Naturalist
A total of 395 microtine rodent specimens recovered from Snake Creek Burial Cave (SCBC) are referred to Microtus sp. and Lemmiscus curtatus. Radiocarbon and Uranium series dates indicated an age for these fossils of between 9460 ± 160 yr. B.P. and 15,100 ± 700 yr. B.P. The sample of lower first molars of Lemmiscus includes 4-, 5-, and 6-closed triangle morphotypes. Earlier reports of the 4-closed triangle morphotype are from Irvingtonian deposits in Colorado, Nevada, and New Mexico and from early Rancholabrean deposits in Washington. The morphotype is not known in living populations of Lemmiscus. SCBC specimens constitute …
Taxonomy Of Sphaeromeria, Artemisia, And Tanacetum (Compositae, Anthemideae) Based On Randomly Amplified Polymorphic Dna (Rapd), E. Durant Mcarthur, Renée Van Buren, Stewart C. Sanderson, Kimball T. Harper
Taxonomy Of Sphaeromeria, Artemisia, And Tanacetum (Compositae, Anthemideae) Based On Randomly Amplified Polymorphic Dna (Rapd), E. Durant Mcarthur, Renée Van Buren, Stewart C. Sanderson, Kimball T. Harper
Great Basin Naturalist
Relationships within, between, and among the Anthemideae genera Sphaeromeria, Artemisia, and Tanacetum were investigated using 238 randomly amplified polymorphic DNA (RAPD) markers obtained from twenty 10-mer primers amplified on genomic DNA. Forty-one populations from 16 taxa (15 species) were studied. Jaccard's coefficient of similarity and UPGMA clustering analysis were used to construct phenograms. T tests were used to make comparisons between samples at various systematic levels. DNA markers were 75% similar for conspecific populations. Sixteen Sphaeromeria populations (5 species) showed an average interspecific similarity of 21%. Interspecific similarity among 23 Artemisia populations (8 species with 2 subspecies of A. …
Northern Light, Volume 17, Number 33, N/A N/A
Northern Light, Volume 17, Number 33, N/A N/A
The Northern Light
No abstract provided.
January 30 1998, Friday Bulletin
The Hilltop 1-30-1998, Hilltop Staff