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Global Warming: At What Point Does Atmospheric Greenhouse Gas Release Become Unethical?, Luke Good, Gladys Lopez 2011 University of Nevada, Las Vegas

Global Warming: At What Point Does Atmospheric Greenhouse Gas Release Become Unethical?, Luke Good, Gladys Lopez

Festival of Communities: UG Symposium (Posters)

In recent decades, the concept of global warming has developed increasing concern among the scientific community and general public alike. What was initially dismissed as little more than unlikely has now become a severe warning for global climate crisis threatening not only our way of life but ultimate future existence on this planet? Global warming is defined as the steady mean increase in atmospheric temperature, the primary asserted cause thereof being increased emissions and inherent atmospheric concentrations of “greenhouse gases” – carbon dioxide in particular. These gases contribute to the greenhouse effect by trapping radiation (from the sun) in the atmosphere ...


Oral Presentation: Next Generation Nuclear Fuels, Douglas Hanks 2011 University of Nevada, Las Vegas

Oral Presentation: Next Generation Nuclear Fuels, Douglas Hanks

Festival of Communities: UG Symposium (Posters)

Zirconium carbide has been proposed as a coating layer for next generation (“TRISO”) nuclear fuel, and is intended as a diffusion barrier to contain fission products (e.g., Pd). To study the chemical interaction between Pd and ZrC, their interface was investigated using X-ray Photoelectron Spectroscopy (XPS). Pd was step-wise deposited onto ZrC in ultra-high vacuum, and the chemical interaction at the interface was monitored, also as a function of temperature (up to 1000 C). In the presentation, details of the chemical interaction and changes in the chemical environment of Pd and their relevance for TRISO fuel will be discussed.


Has Recent Climate Change Caused A Genetic Bottleneck In A Sierra Nevada Population Of The Bushy-Tailed Woodrat?, Mitchell Gritts, Angela D. Hornsby, Majorie D. Matocq 2011 University of Nevada, Reno

Has Recent Climate Change Caused A Genetic Bottleneck In A Sierra Nevada Population Of The Bushy-Tailed Woodrat?, Mitchell Gritts, Angela D. Hornsby, Majorie D. Matocq

Festival of Communities: UG Symposium (Posters)

Many montane species respond to climate change by shifting their range upslope as temperatures at lower elevations increase. An elevation range shift causes a range contraction that may result in a population bottleneck. Joseph Grinnell surveyed the fauna along the Yosemite transect from 1914 to 1920. In 2003 Craig Moritz and his colleagues began to resurvey the Yosemite transect to assess the faunal change during a century of climate change. The bushy-tailed woodrat suffered severe range contraction and population bottleneck between the two surveys. I will use evolutionary models to determine if the population has suffered a genetic bottleneck.


Event Program, Carl Reiber, Nicholle Booker 2011 Academic Affairs Fellow, Office of the Executive Vice President & Provost, University of Nevada, Las Vegas

Event Program, Carl Reiber, Nicholle Booker

Festival of Communities: UG Symposium (Posters)

UNLV Undergraduates from all departments, programs and colleges participated in a campus-wide symposium on April 16, 2011. Undergraduate posters from all disciplines and also oral presentations of research activities, readings and other creative endeavors were exhibited throughout the festival.


Lecture 10: Human Activities And Future Coast, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 10: Human Activities And Future Coast, Carl T. Friedrichs

Presentations

No abstract provided.


Lecture 8: Muddy Coasts, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 8: Muddy Coasts, Carl T. Friedrichs

Presentations

No abstract provided.


Lecture 9: Morphodynamics Of Coastal Systems, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 9: Morphodynamics Of Coastal Systems, Carl T. Friedrichs

Presentations

No abstract provided.


Mudbed: Multi-Disciplinary Benthic Exchange Dynamics, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Mudbed: Multi-Disciplinary Benthic Exchange Dynamics, Carl T. Friedrichs

Presentations

No abstract provided.


Evaluation Of Drought Indices Based On Thermal Remote Sensing Of Evapotranspiration Over The Continental United States, Martha C. Anderson, Christopher R. Hain, Brian Wardlow, Agustin Pimstein, John R. Mecikalski, William P. Kustas 2011 USDA-ARS

Evaluation Of Drought Indices Based On Thermal Remote Sensing Of Evapotranspiration Over The Continental United States, Martha C. Anderson, Christopher R. Hain, Brian Wardlow, Agustin Pimstein, John R. Mecikalski, William P. Kustas

Drought Mitigation Center Faculty Publications

The reliability of standard meteorological drought indices based on measurements of precipitation is limited by the spatial distribution and quality of currently available rainfall data. Furthermore, they reflect only one component of the surface hydrologic cycle, and they cannot readily capture nonprecipitation-based moisture inputs to the land surface system (e.g., irrigation) that may temper drought impacts or variable rates of water consumption across a landscape. This study assesses the value of a new drought index based on remote sensing of evapotranspiration (ET). The evaporative stress index (ESI) quantifies anomalies in the ratio of actual to potential ET (PET), mapped ...


Systems Views Of The Economics Of Sustainable Development, Joshua Hughes 2011 Portland State University

Systems Views Of The Economics Of Sustainable Development, Joshua Hughes

Systems Science Friday Noon Seminar Series

The mainstream economics of the 20th century (and now 21st century) has often failed to predict what will happen--or explain what has happened--in the real world, even with (or because of?) an ever-increasing reliance on quantitative and computational methods. Since the mid-20th century a number of people part of, or closely associated with, the systems community--economists among them--have provided insights about what is wrong with "traditional" economics. Systems science offers a number of alternative methods for understanding economic systems that take heed of these criticisms, especially in the context of sustainable development. Yet, while promising, few of these alternatives ...


Lecture 7: Deltas And Estuaries, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 7: Deltas And Estuaries, Carl T. Friedrichs

Presentations

No abstract provided.


Effects Of Rodent Species, Seed Species, And Predator Cues On Seed Fate, Kelly J. Sivy, Steven M. Ostoja, Eugene W. Schupp, Susan Durham 2011 Utah State University

Effects Of Rodent Species, Seed Species, And Predator Cues On Seed Fate, Kelly J. Sivy, Steven M. Ostoja, Eugene W. Schupp, Susan Durham

USGS Staff -- Published Research

Seed selection, removal and subsequent management by granivorous animals is thought to be a complex interaction of factors including qualities of the seeds themselves (e.g., seed size, nutritional quality) and features of the local habitat (e.g. perceived predator risk). At the same time, differential seed selection and dispersal is thought to have profound effects on seed fate and potentially vegetation dynamics. In a feeding arena, we tested whether rodent species, seed species, and indirect and direct predation cues influence seed selection and handling behaviors (e.g., scatter hoarding versus larder hoarding) of two heteromyid rodents, Ord’s kangaroo ...


Monitoring Relative Abundance Of American Shad In Virginia Rivers 2010 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee 2011 Virginia Institute of Marine Science

Monitoring Relative Abundance Of American Shad In Virginia Rivers 2010 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee

Reports

Concern about the decline in landings of American shad (Alosa sapidissima) along the Atlantic coast prompted the development of an interstate fisheries management plan (FMP) under the auspices of the Atlantic States Marine Fisheries Management Program (ASMFC 1999). Legislation enables imposition of federal sanctions on fishing in those states that fail to comply with the FMP. To be in compliance, coastal states are required to implement and maintain fishery-dependent and fishery-independent monitoring programs as specified by the FMP. For Virginia, these requirements include spawning stock assessments, the collection of biological data on the spawning run (e.g., age-structure, sex ratio ...


Career: Data Management For Ad-Hoc Geosensor Networks, Silvia Nittel 2011 Principal Investigator; University of Maine, Orono

Career: Data Management For Ad-Hoc Geosensor Networks, Silvia Nittel

University of Maine Office of Research Administration: Grant Reports

This project explores data management methods for geosensor networks, i.e. large collections of very small, battery-driven sensor nodes deployed in the geographic environment that measure the temporal and spatial variations of physical quantities such as temperature or ozone levels. An important task of such geosensor networks is to collect, analyze and estimate information about continuous phenomena under observation such as a toxic cloud close to a chemical plant in real-time and in an energy-efficient way. The main thrust of this project is the integration of spatial data analysis techniques with in-network data query execution in sensor networks. The project ...


Lecture 6: Beach And Barrier Coasts, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 6: Beach And Barrier Coasts, Carl T. Friedrichs

Presentations

No abstract provided.


Lecture 5: Reef Coasts, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 5: Reef Coasts, Carl T. Friedrichs

Presentations

No abstract provided.


Investigating The Potential For Nitrate-N Removal In Rhode Island Transient Headwater Streams, Molly Welsh, Kelly Addy, Art Gold, Suzanne Cox 2011 Department of Natural Resources Science, University of Rhode Island

Investigating The Potential For Nitrate-N Removal In Rhode Island Transient Headwater Streams, Molly Welsh, Kelly Addy, Art Gold, Suzanne Cox

Discovery@URI

Excess nitrogen (N) can have detrimental effects on the environment, particularly in coastal waters where inputs from septic systems and agricultural runoff can lead to algal blooms and hypoxic zones. However, transient headwater streams, which comprise a significant portion of streams in watersheds, may have the potential to remove N given their low flow rates, high surface to volume ratios, long retention times, and hydric soils. We investigated the physical characteristics and N removal capacity of transient headwater streams. Four bromide (Br) and nitrate-N slug tests were conducted in four streams in southern RI. Streams were sampled repeatedly as the ...


Lecture 3: Hydrodynamics And Sediment Dynamics, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 3: Hydrodynamics And Sediment Dynamics, Carl T. Friedrichs

Presentations

No abstract provided.


Lecture 2: Geological Setting, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 2: Geological Setting, Carl T. Friedrichs

Presentations

No abstract provided.


Lecture 4: Rocky Coasts, Carl T. Friedrichs 2011 Virginia Institute of Marine Science

Lecture 4: Rocky Coasts, Carl T. Friedrichs

Presentations

No abstract provided.


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