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Articles 391 - 420 of 672

Full-Text Articles in Physical Sciences and Mathematics

Energy Independence In The Usa, Janice Ringler May 2013

Energy Independence In The Usa, Janice Ringler

Student Papers in Public Policy

During President Barack Obama’s first term and throughout the recent presidential campaign, there was much discussion about becoming energy-independent as a nation. Indeed, one of the most pressing issues facing the country today is our energy future. This is especially a concern in areas where mainstream energy sources (coal, gas, oil) do not exist, and thus must be imported. Many believe that this is a problem that communities and states are better suited to tackle than the federal government due to the flexibility and knowledge of state policy initiatives. In this brief I will propose a variety of measures that …


The Consciousness Of Water: Narrative Flows, Environmental Change, And The Voice Of Yemen, Tricia Nellessen May 2013

The Consciousness Of Water: Narrative Flows, Environmental Change, And The Voice Of Yemen, Tricia Nellessen

Graduate Theses and Dissertations

Icebergs are melting in the Arctic. The Gulf of Mexico is warming and producing hurricanes such as Katrina. The delta of the southern United States is drying. And, Yemen will be the first country in modern history to experience a lack of accessible ground water, as soon as 2017 possibly. Yemen's situation has been tracked by scholars and governments since the 1960s. Despite this fact, cities have expanded in Yemen and the population has increased its use of water while little has been invested in desalination or infrastructure to offset growth. Climate change has affected humans for thousands of years; …


The Stories Of Environmental Ethicists In Word And Image, Camille Robins Apr 2013

The Stories Of Environmental Ethicists In Word And Image, Camille Robins

Scripps Senior Theses

The Stories of Environmental Ethicists in Word and Image captures the spirit of three local people: John B. Cobb, Jr., Rosemary Radford Ruether, and Dean Freudenberger. As teachers, writers, activists, and members of the progressive retirement community Pilgrim Place, they’ve had a significant influence on the global environmental movement. The photographs and small essays in this project highlight who they are and what they’ve done, and how they continue to shape contemporary intellectual discourse. An analysis of how portrait photographers use images to tell stories and how they incorporate text in their photographic collections to create fuller, more robust pictures …


Single-Grain Osl Chronologies For Middle Palaeolithic Deposits At El Mnasra And El Harhoura 2, Morocco: Implications For Late Pleistocene Human-Environment Interactions Along The Atlantic Coast Of Northwest Africa, Zenobia Jacobs, Richard Roberts, Roland Nespoulet, M El Hajraoui, Andre Debenath Mar 2013

Single-Grain Osl Chronologies For Middle Palaeolithic Deposits At El Mnasra And El Harhoura 2, Morocco: Implications For Late Pleistocene Human-Environment Interactions Along The Atlantic Coast Of Northwest Africa, Zenobia Jacobs, Richard Roberts, Roland Nespoulet, M El Hajraoui, Andre Debenath

Richard G Roberts

Optically stimulated luminescence (OSL) measurements were made on individual, sand-sized grains of quartz from Middle Palaeolithic deposits at two cave sites (El Harhoura 2 and El Mnasra) on the Atlantic coast of Morocco. We were able to calculate OSL ages for 32 of the 33 samples collected from the Middle Palaeolithic deposits, including the earliest and latest Aterian levels at both sites. These ages reveal periods of occupation between about 110 and 95 ka (thousands of years ago), and at ~75 ka. A late Middle Palaeolithic occupation of El Harhoura 2 is also recorded at ~55 ka. Our single-grain OSL …


Extending A Geographic Lens Towards Climate Justice, Part 1: Climate Change Characterization And Impacts, Morey Burnham, Claudia Radel, Zhao Ma, Ann Laudati Mar 2013

Extending A Geographic Lens Towards Climate Justice, Part 1: Climate Change Characterization And Impacts, Morey Burnham, Claudia Radel, Zhao Ma, Ann Laudati

Environment and Society Faculty Publications

There has been a recent increase of interest within the academic literature on the justice issues posed by climate change and the human responses to its present and forecasted effects. This literature is partially shaped by debates from environmental justice scholarship, but also has roots in various subfields of geography. In two parts (here and in a subsequent article), we review and synthesize the recent literature by asking what climate justice concerns have been identified within three related realms: 1) the characterization of climate change itself and the assignment of responsibility for that change; 2) the differential or uneven impacts …


Modelling And Hazard Analysis For Contaminated Sediments Using Stamp Model And Stpa Tool, Karim Hardy, Franck Guarnieri Mar 2013

Modelling And Hazard Analysis For Contaminated Sediments Using Stamp Model And Stpa Tool, Karim Hardy, Franck Guarnieri

Publications

The goal of this article is dual: first, introducing a new model of accident named STAMP (systems-theoretic accident modeling and processes); then applying the model to an innovative process for the treatment of contaminated substances and the re-use of treated substances. This article is a demonstration for a need of a new tool to take into account hazards and safety within socio-technical systems.


Spatial Statistics In The Presence Of Location Error With An Application To Remote Sensing Of The Environment, Noel A. Cressie, John Kornak Feb 2013

Spatial Statistics In The Presence Of Location Error With An Application To Remote Sensing Of The Environment, Noel A. Cressie, John Kornak

Professor Noel Cressie

Techniques for the analysis of spatial data have, to date, tended to ignore any effect caused by error in specifying the spatial locations at which measurements are recorded. This paper reviews the methods for adjusting spatial inference in the presence of data-location error, particularly for data that. have a continuous spatial index (geostatistical data). New kriging equations are developed and evaluated based on a simulation experiment. They are also applied to remote-sensing data from the Total Ozone Mapping Spectrometer instrument on the Nimbus-7 satellite, where the location error is caused by assignment of the data to their nearest grid-cell centers. …


Becoming Multiliterate: Digital Video News Construction Within A Technology-Supported Learning Environment, Lori Lockyer, Ian M. Brown, David Blackall, Barry M. Harper, Phillip J. Mckerrow Feb 2013

Becoming Multiliterate: Digital Video News Construction Within A Technology-Supported Learning Environment, Lori Lockyer, Ian M. Brown, David Blackall, Barry M. Harper, Phillip J. Mckerrow

David Blackall

Twenty-first century literacies imply multiliteracies – going beyond language literacy and numeracy to, among others, information, visual, media and technological literacies. An education that develops capabilities across a range of literacies equips young people with the skills necessary to participate in a complex, globalized workplace and community. A key step toward realizing such national and state education agendas is specific curriculum interventions that are translated to the classroom level. This paper reports on a case study that explored both the process and outcomes of the implementation of an education program which was designed to incorporate multiliteracies.


A Profile Of Travelers Who Are Willing To Stay In Environmentally Friendly Hotel, Michelle Millar, Karl J. Mayer Feb 2013

A Profile Of Travelers Who Are Willing To Stay In Environmentally Friendly Hotel, Michelle Millar, Karl J. Mayer

Hospitality Review

The purpose of this study is to describe travelers that have indicated they are willing to stay in green hotel in order to better understand the market segment. There is very little knowledge about these types of travelers, thus making it difficult for hoteliers to know how to create marketing campaigns that target them. Data were collected via an online survey company. Behavior characteristics provided a more distinguishing profile of the traveler than did demographics or psychographics. Most travelers were willing to pay the same amount for a green hotel as a traditional hotel. Implications, future research, and limitations are …


Mapping Light Pollution At Utah State University, Rachel K. Nydegger, Shane L. Larson Ph.D. Jan 2013

Mapping Light Pollution At Utah State University, Rachel K. Nydegger, Shane L. Larson Ph.D.

Rachel Nydegger Rozum

One of the beauties of modern civilization is seeing the city lighting at night. It provides a feeling of security and is indicative of the power and endeavors of humanity, but over-lighting is a form of pollution. Many outdoor light fixtures spread light in all directions, sending a majority of the light into the sky, away from where we want the light to be on the ground. This light spreading upward is not only wasted light, but it is wasted energy and money, destroys our ability to view the night sky, and has profound effects on nocturnal creatures. The direct …


Mapping Light Pollution At Utah State University, Rachel Nydegger, Shane L. Larson Jan 2013

Mapping Light Pollution At Utah State University, Rachel Nydegger, Shane L. Larson

Research on the Hill (Salt Lake City)

One of the beauties of modern civilization is seeing the city lighting at night. It provides a feeling of security and is indicative of the power and endeavors of humanity, but over-lighting is a form of pollution. Many outdoor light fixtures spread light in all directions, sending a majority of the light into the sky, away from where we want the light to be on the ground. This light spreading upward is not only wasted light, but it is wasted energy and money, destroys our ability to view the night sky, and has profound effects on nocturnal creatures. The direct …


Leadership Development For Pro-Environmental Behavior Utilizing Peer To Peer Communication And Learning: An Academic Pilot Project, Mark Wayne Carrera Ma Jan 2013

Leadership Development For Pro-Environmental Behavior Utilizing Peer To Peer Communication And Learning: An Academic Pilot Project, Mark Wayne Carrera Ma

All Student Scholarship

There is a cultural perception that the onus of responsibility for shark conservation falls on the shoulders of environmental and scientific communities’ leaders. Given the diminutive size of these two communities when compared to the vastness of American society, responsibilities should be shared by leaders of educational organizations who can communicate with greater populations. The general public must be encouraged to act pro-environmentally for effective shark conservation to ever take place in the world.


The Feasibility Of Using Vanadium And Nickel To Track Oil Spills In Coastal Environments, Sean Patrick Kenny Jan 2013

The Feasibility Of Using Vanadium And Nickel To Track Oil Spills In Coastal Environments, Sean Patrick Kenny

LSU Master's Theses

Crude oil has been increasing in world demand over the past century. It is known that oil is resistant to weathering processes and if spilled, can cause serious environmental damage to an area, on land or sea. A complementary approach to current methods of tracking oil and identifying spill-impacted sediments may be to measure trace metals associated with crude oil. Trace metals, such a vanadium (V) and nickel (Ni) are known to be elevated in concentration in some oil sources, but little work has been done on this topic. This research explored less expensive and time-consuming methods to track or …


One Earth, Take Care, Minnesota State University, Mankato Jan 2013

One Earth, Take Care, Minnesota State University, Mankato

Conservation/Energy Alternatives

Bibliography and photographs of a display of government documents from Minnesota State University, Mankato.


Dinosolve: A Protein Disulfide Bonding Prediction Server Using Context-Based Features To Enhance Prediction Accuracy, Ashraf Yaseen, Yaohang Li Jan 2013

Dinosolve: A Protein Disulfide Bonding Prediction Server Using Context-Based Features To Enhance Prediction Accuracy, Ashraf Yaseen, Yaohang Li

Computer Science Faculty Publications

Background: Disulfide bonds play an important role in protein folding and structure stability. Accurately predicting disulfide bonds from protein sequences is important for modeling the structural and functional characteristics of many proteins.

Methods: In this work, we introduce an approach of enhancing disulfide bonding prediction accuracy by taking advantage of context-based features. We firstly derive the first-order and second-order mean-force potentials according to the amino acid environment around the cysteine residues from large number of cysteine samples. The mean-force potentials are integrated as context-based scores to estimate the favorability of a cysteine residue in disulfide bonding state as well as …


Approaching The Notion Of Place By Contrast, Stephan Winter, Christian Freksa Dec 2012

Approaching The Notion Of Place By Contrast, Stephan Winter, Christian Freksa

Journal of Spatial Information Science

Place is an elusive notion in geographic information science. This paper presents an approach to capture the notion of place by contrast. This approach is developed from cognitive concepts and the language that is used to describe places. It is complementary to those of coordinate-based systems that dominate contemporary geographic information systems. Accordingly the approach is aimed at explaining structures in verbal place descriptions and at localizing objects without committing to geometrically specified positions in space. We will demonstrate how locations can be identified by place names that are not crisply defined in terms of geometric regions. Capturing the human …


Telecommunications Network Management Applications In An Educational Environment, Ibrahim Raad, Peter Vial, W. Raad, Keni Popovski Dec 2012

Telecommunications Network Management Applications In An Educational Environment, Ibrahim Raad, Peter Vial, W. Raad, Keni Popovski

Dr Peter Vial

No abstract provided.


The Effects Of Replacing Dispersed Trash And Recycling Bins With Integrated Waste Receptacles On The Accuracy Of Waste Sorting In An Academic Building, Katherine J. Binder Dec 2012

The Effects Of Replacing Dispersed Trash And Recycling Bins With Integrated Waste Receptacles On The Accuracy Of Waste Sorting In An Academic Building, Katherine J. Binder

Masters Theses

Numerous researchers and theorists have attempted to explain the existence of the gap between the possession of environmental knowledge and awareness and the display of pro-environmental behavior (Glasser, 2007; Kollmuss & Agyeman, 2002). Behavior analysis is uniquely aligned to contribute to this discussion through its emphasis on the role of controlling variables in behavior change. A growing number of behavioral research studies address the challenges of group-contingencies in an effort to solve real-world gaps (Lehman & Geller, 2004). This study was designed as a continuation of the line of behavioral research designed to increase recycling rates and also as an …


Waypoints On A Journey Of Discovery: Mental Models In Human Environment Interactions, Timothy Lynam, Raphael Mathevet, Michel Etienne, Samantha Stone-Jovicich, Anne Leitch, Nathalie Jones, Helen Ross, Derick Du Toit, Sharon Pollard, Harry Biggs, Pascal Perez Nov 2012

Waypoints On A Journey Of Discovery: Mental Models In Human Environment Interactions, Timothy Lynam, Raphael Mathevet, Michel Etienne, Samantha Stone-Jovicich, Anne Leitch, Nathalie Jones, Helen Ross, Derick Du Toit, Sharon Pollard, Harry Biggs, Pascal Perez

Professor Pascal Perez

Although the broad concept of mental models is gaining currency as a way to explore the link between how people think and interact with their world, this concept is limited by a theoretical and practical understanding of how it can be applied in the study of human-environment relationships. Tools and processes are needed to be able to elicit and analyze mental models. Because mental models are not directly observable, it is also important to understand how the application of any tools and processes affects what is measured. Equally important are the needs to be clear on the intent of the …


Evaluating Participatory Modeling: Developing A Framework For Cross-Case Analysis. Socio-Economics And The Environment In Discussion (Seed), Natalie A. Jones, Pascal Perez, Thomas G. Measham, Gail J. Kelly, Patrick D'Aquino, Katherine Daniell, Anne Dray, Nils Ferrand Nov 2012

Evaluating Participatory Modeling: Developing A Framework For Cross-Case Analysis. Socio-Economics And The Environment In Discussion (Seed), Natalie A. Jones, Pascal Perez, Thomas G. Measham, Gail J. Kelly, Patrick D'Aquino, Katherine Daniell, Anne Dray, Nils Ferrand

Professor Pascal Perez

Participatory modeling is increasingly recognised as an effective way to assist collective decision-making processes in the domain of natural resource management. This paper introduces a framework for evaluating projects that have adopted a participatory modeling approach. This framework – known as the ‘Protocol of Canberra’ – was developed through a collaboration between French and Australian researchers engaged in participatory modeling and evaluation research. The framework seeks to assess the extent to which different participatory modeling practices reinforce or divert from the theoretical assumptions they are built upon. The paper discusses the application of the framework in three case-studies, two from …


Joint Modeling Of Additive And Non-Additive (Genetic Line) Effects In Multi-Environment Trials, H Oakey, A Verbyla, Brian Cullis, X. Wei, W. Pitchford Nov 2012

Joint Modeling Of Additive And Non-Additive (Genetic Line) Effects In Multi-Environment Trials, H Oakey, A Verbyla, Brian Cullis, X. Wei, W. Pitchford

Professor Brian Cullis

A statistical approach for the analysis of multienvironment trials (METs) is presented, in which selection of best performing lines, best parents, and best combination of parents can be determined. The genetic effect of a line is partitioned into additive, dominance and residual nonadditive effects. The dominance effects are estimated through the incorporation of the dominance relationship matrix, which is presented under varying levels of inbreeding. A computationally efficient way of fitting dominance effects is presented which partitions dominance effects into between family dominance and within family dominance line effects. The overall approach is applicable to inbred lines, hybrid lines and …


A Networked Virtual Environment Communications Model Using Priority Updating, Yang-Wai Chow, Ronald Pose, Matthew Regan Nov 2012

A Networked Virtual Environment Communications Model Using Priority Updating, Yang-Wai Chow, Ronald Pose, Matthew Regan

Dr Yang-Wai Chow

Networked virtual environments have been used in a variety of applications ranging from military training simulations to collaborative teleconferencing, and have recently become increasingly popular in the field of entertainment especially in online gaming. As the size, distribution and number of participants of these virtual world systems increases, so do the demands placed on the limited networking resources. This has presented networked virtual environment system developers with the problem of having to design efficient network communication models in order to reduce the amount of network traffic and bandwidth utilization, while at the same time not compromising on the real-time interactive …


The Effectiveness Of The Use Of Solar Panels In Hotels Of Durres Area, Asllan Hajderi, Shkelqim Gjevori Nov 2012

The Effectiveness Of The Use Of Solar Panels In Hotels Of Durres Area, Asllan Hajderi, Shkelqim Gjevori

UBT International Conference

In the present study is analyzing the case of the application of solar energy with vacuum tube collectors for heating water for sanitary needs in hotels of Durres areas. In recent years there has been a special interest by the leading authorities to the EU countries and the U.S., for the use of renewable energies in general and solar energy in particular. This is mainly related with the reduction of environmental pollution from gas CO2, which directly influences the greenhouse effect and global warming. Unlike other forms of renewable energy, like wind turbines, photovoltaic panels and biomass usages, the use …


Sp741-A Wise Up And Power Down: Light Up Your Life - For Less, Martha Keel Sep 2012

Sp741-A Wise Up And Power Down: Light Up Your Life - For Less, Martha Keel

Environment (Indoor & Outdoor)

No abstract provided.


Sp741-B Wise Up And Power Down: Light Up Your Life - For Less (24" X 36" Poster), Martha Keel Sep 2012

Sp741-B Wise Up And Power Down: Light Up Your Life - For Less (24" X 36" Poster), Martha Keel

Environment (Indoor & Outdoor)

No abstract provided.


Slides: Meeting The Needs Of Women Through Clean Cooking Solutions, Corinne Hart Sep 2012

Slides: Meeting The Needs Of Women Through Clean Cooking Solutions, Corinne Hart

2012 Energy Justice Conference and Technology Exposition (September 17-18)

Presenter: Corinne Hart, Program Manager, Gender and Markets, Global Alliance for Clean Cookstoves

20 slides


Sp555 Indoor Air Hazards, Martha W. Keel, Bobbi Clarke Sep 2012

Sp555 Indoor Air Hazards, Martha W. Keel, Bobbi Clarke

Environment (Indoor & Outdoor)

No abstract provided.


Environmental Impacts Of Stover Removal In The Corn Belt, Alicia English, Wallace E. Tyner, Juan Sesmero, Phillip Owens, David J. Muth Jr. Aug 2012

Environmental Impacts Of Stover Removal In The Corn Belt, Alicia English, Wallace E. Tyner, Juan Sesmero, Phillip Owens, David J. Muth Jr.

David J. Muth

When considering the market for biomass from corn stover resources erosion and soil quality issues are important to consider. Removal of stover can be beneficial in some areas, especially when coordinated with other conservation practices, such as vegetative barrier strips and cover crops. However, benefits are highly dependent on several factors, namely if farmers see costs and benefits associated with erosion and the tradeoffs with the removal of biomass. This paper uses results from an integrated RUSLE2/WEPS model to incorporate six different regime choices, covering management, harvest and conservation, into a simple profit maximization model to show these tradeoffs.


Sp740-A Good Agricultural Practices Series: Testing Water For Fruit And Vegetable Production, Susannah Amundson, Grant Mccarty, Faith Critzer, Annette Wszelaki Jul 2012

Sp740-A Good Agricultural Practices Series: Testing Water For Fruit And Vegetable Production, Susannah Amundson, Grant Mccarty, Faith Critzer, Annette Wszelaki

Commercial Horticulture

No abstract provided.


Sp740-A Good Agricultural Practices Series: Testing Water For Fruit And Vegetable Production, Susannah Amundson, Grant Mccarty, Faith Critzer, Annette Wszelaki Jul 2012

Sp740-A Good Agricultural Practices Series: Testing Water For Fruit And Vegetable Production, Susannah Amundson, Grant Mccarty, Faith Critzer, Annette Wszelaki

Commercial Horticulture

No abstract provided.