David L Barnes
Datos Biográficos
| ID | 5592849 |
|---|---|
| NOMBRE | David L Barnes |
| NOMBRES | David L |
| APELLIDO | Barnes |
| FIRMA | BARNES D L |
| AFILIACIONES | University of Alaska Fairbanks |
| ORCID | 0000-0003-1479-6882 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 6 |
| TOTAL DE CITAS | 0 |
| TOTAL COMO AUTOR | 6 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2003 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2021 |
| ÍNDICE H | 0 |
Visible or Invisible? Black Girls’ Experiences in a Mathematics Classroom
Building on extant literature, the present qualitative study explored Black adolescent girls’ racial and gendered experiences as mathematics learners. Data collection included focus groups with Black adolescent girls (N = 30, Mage = 12.64 years). Several themes concerning their racialized and gendered schooling experiences emerged, which centered on language use, competition with boys, and working hard to prove themselves. To cope with the racial…
Soil thermal regime after fuel spill cleanup response in a continuous permafrost zone
Releases of diesel fuel in the Arctic tundra are a common occurrence. Response to such releases in this region typically involves excavating the contaminated soil and backfilling the excavation with clean material. Owing to the lack of clean stockpiled native soils, coarse-grained soil (aggregate) used for the construction of roads and foundation pads may be the only backfill material available. Backfilling the excavated zone with soil that has d…
Amchitka Island, Alaska
Amchitka Island, Alaska, is a historical underground nuclear test site. Three underground tests were conducted there by the United States Atomic Energy Commission, now US Department of Energy (USDOE), between 1965 and 1971. These were Long Shot, an 80 kiloton detonation; Milrow, a 1 megaton detonation; and Cannikin, a 5 megaton detonation. Subsequent to these tests, several scientific assessments have been conducted regarding the impacts of the t…
Advances in engineered remediation for use in the Arctic and Antarctica
Creative remediation schemes have been implemented with success at petroleum-contaminated sites in Alaska and Canada during the past decade. Contaminated media have been landfarmed, amended with fertilizers, augmented with microbial products, and manipulated with engineered systems. Phytoremediation developments and use of biodegradable synthetic and polymeric resins for potential use with petroleum and xenobiotic contaminants are on the horizon.…
Equilibrium distribution of petroleum hydrocarbons in freezing ground
Past documented laboratory measurements have shown movement of petroleum hydrocarbons to the freezing front in contaminated freezing soils. The mechanisms that are, in part, responsible for the increased contaminant concentration at the freezing front are illustrated in this study with a mass-balance model. Results from this quantitative analysis show that this concentration increase is due to exclusion of petroleum hydrocarbon from the crystalli…
Spill evaluation of petroleum products in freezing ground
In North American cold regions, terrestrial spill-response tactics have evolved through clean-up experience with crude oil and refined petroleum products. Alaska has developed response tactics as guidelines for clean-up of petroleum-based spills. Generic application of any response tactic without regard for season, site-specific conditions, and equipment limitations can further damage an ecosystem. For example, the practice of igniting and burnin…
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Spill evaluation of petroleum products in freezing ground
In North American cold regions, terrestrial spill-response tactics have evolved through clean-up experience with crude oil and refined petroleum products. Alaska has developed response tactics as guidelines for clean-up of petroleum-based spills. Generic application of any response tactic without regard for season, site-specific conditions, and equipment limitations can further damage an ecosystem. For example, the practice of igniting and burnin…
Equilibrium distribution of petroleum hydrocarbons in freezing ground
Past documented laboratory measurements have shown movement of petroleum hydrocarbons to the freezing front in contaminated freezing soils. The mechanisms that are, in part, responsible for the increased contaminant concentration at the freezing front are illustrated in this study with a mass-balance model. Results from this quantitative analysis show that this concentration increase is due to exclusion of petroleum hydrocarbon from the crystalli…
Advances in engineered remediation for use in the Arctic and Antarctica
Creative remediation schemes have been implemented with success at petroleum-contaminated sites in Alaska and Canada during the past decade. Contaminated media have been landfarmed, amended with fertilizers, augmented with microbial products, and manipulated with engineered systems. Phytoremediation developments and use of biodegradable synthetic and polymeric resins for potential use with petroleum and xenobiotic contaminants are on the horizon.…
Amchitka Island, Alaska
Amchitka Island, Alaska, is a historical underground nuclear test site. Three underground tests were conducted there by the United States Atomic Energy Commission, now US Department of Energy (USDOE), between 1965 and 1971. These were Long Shot, an 80 kiloton detonation; Milrow, a 1 megaton detonation; and Cannikin, a 5 megaton detonation. Subsequent to these tests, several scientific assessments have been conducted regarding the impacts of the t…
Soil thermal regime after fuel spill cleanup response in a continuous permafrost zone
Releases of diesel fuel in the Arctic tundra are a common occurrence. Response to such releases in this region typically involves excavating the contaminated soil and backfilling the excavation with clean material. Owing to the lack of clean stockpiled native soils, coarse-grained soil (aggregate) used for the construction of roads and foundation pads may be the only backfill material available. Backfilling the excavated zone with soil that has d…
Visible or Invisible? Black Girls’ Experiences in a Mathematics Classroom
Building on extant literature, the present qualitative study explored Black adolescent girls’ racial and gendered experiences as mathematics learners. Data collection included focus groups with Black adolescent girls (N = 30, Mage = 12.64 years). Several themes concerning their racialized and gendered schooling experiences emerged, which centered on language use, competition with boys, and working hard to prove themselves. To cope with the racial…
Environmental Science (5 obras) · Arctic (3 obras) · Atmospheric and Environmental Gas Dynamics (3 obras) · Climate change and permafrost (3 obras) · Geology (3 obras) · Geology (3 obras) · Oceanography (3 obras) · Oceanography (3 obras) · Ecology (2 obras) · Ecology (2 obras)