Potential Applications Of Silicon Nanoparticles In Artificial Photosynthesis, 2015 Portland State University
Potential Applications Of Silicon Nanoparticles In Artificial Photosynthesis, Carolyn N. Virca, Christine Radlinger, Josh Lohmolder, Theresa M. Mccormick
Student Research Symposium
Solar energy capture and storage is very important for meeting growing global energy demands. Nanoparticles are of interest in this area as photosensitizers because of their stability and color tunability but many are made from rare or toxic materials. In this work we explore using less toxic silicon nanoparticles as photosensitizers coupled with known proton reduction catalysts in a noble-metal free water reduction system. Silicon nanoparticle fluorescence is quenched by Ni and Co catalysts indicating possible electron transfer, however proton reduction under these conditions has not been observed. Electrochemical and photochemical experiments into nature of the quenching will be presented.
Illness And God's Will, 2015 Liberty University
Illness And God's Will, John Sherret
Senior Honors Theses
Originally, God never put sickness on people. After the fall, the early history of man as recorded in the Bible further demonstrates Him refraining to use sickness. However, once the law was instituted God began to use sickness as a punishment. In the Old Testament, sickness was always defined as a curse and never a blessing. It was used by God to curse people for disobeying the law. In the New Testament, God was seen healing the multitudes instead of cursing them. Through the atonement of Jesus, believers have been redeemed from the curse of the law (Galatians 3:13 ...
Habitat Features Predict The Distribution Of Recreational Shooters In The Morley Nelson Snake River Birds Of Prey National Conservation Area, Emily R. Sun, Benjamin P. Pauli, Zoe Tinkle, Romaric Mukuna, Daniel Wolfe, Jennifer S. Forbey, Julie Heath
College of Arts and Sciences Presentations
The Morley Nelson Snake River Birds of Prey National Conservation Area (NCA) is a popular destination of many Treasure Valley residents. There, recreationists participate in various pastimes such as target shooting, recreational shooting/hunting, and wildlife viewing. However, these activities have the potential to interfere with one another. Recreational shooting of Piute ground squirrels (Urocitellus mollis) could affect prey availability and scavenging opportunities for associated raptor species, most notably local golden eagle (Aquila chrysaetos) populations. To assess possible interactions among shooters, prey and raptors, the spatial density and habitat preference of human shooters must be determined. We hypothesized that higher ...
Concomitant Uptake Of Antimicrobials And Salmonella In Soil And Into Lettuce Following Wastewater Irrigation, 2015 University of Nebraska--Lincoln
Concomitant Uptake Of Antimicrobials And Salmonella In Soil And Into Lettuce Following Wastewater Irrigation, J. Brett Sallach, Yuping Zhang, Laurie Hodges, Daniel D. Snow, Xu Li, Shannon L. Bartelt-Hunt
Civil Engineering Faculty Publications
The use of wastewater for irrigation may introduce antimicrobials and human pathogens into the food supply through vegetative uptake. The objective of this study was to investigate the uptake of three antimicrobials and Salmonella in two lettuce cultivars. After repeated subirrigation with synthetic wastewater, lettuce leaves and soil were collected at three sequential harvests. The internalization frequency of Salmonella in lettuce was low. A soil horizon-influenced Salmonella concentration gradient was determined with concentrations in bottom soil 2 log CFU/g higher than in top soil. Lincomycin and sulfamethoxazole were recovered from lettuce leaves at concentrations as high as 822 ng ...
Does Personality Affect The Probability That Piute Ground Squrriels (Urocitellus Mollis) Will Be Shot By Recreational Hunters?, Daniel Wolfe, Zoe Tinkle, Benjamin P. Pauli, Emily Sun, Romaric Mukuna, Jennifer S. Forbey, Julie Heath
College of Arts and Sciences Presentations
Recreational shooting of Piute ground squirrels (Urocitellus mollis) in southern Idaho is an activity growing in popularity. One factor that may influence shooting success is the personality of individuals within a population. We hypothesized that bold individual ground squirrels would be more/less likely to be targeted by a hunter and would be more/less disturbed by gun fire. To test these hypotheses, we simulated recreational shooting to identify which personalities are more susceptible hunters and more responsive to gun fire. We preformed simulations in March of 2015 on a population of Piute ground squirrels with known personalities. Bold and ...
Tillage, Cover Crop And Nitrogen Fertilization Effects On Soil Microbial Carbon Dynamics Under Long-Term Cotton Production, 2014 University of Tennessee - Knoxville
Tillage, Cover Crop And Nitrogen Fertilization Effects On Soil Microbial Carbon Dynamics Under Long-Term Cotton Production, Molefi Jacob Mpheshea
Effective soil management requires a deeper understanding of how internal soil carbon (C) works. This is vital as cycling is tightly linked with nutrient cycling processes. This study evaluated the effect of agronomic practices including tillage (no-till and tilled), cover crops (no cover, hairy vetch - Vicia villosa L, and winter wheat - Triticum aestivum. L ) and different N fertilizer rates ( 0, 34 and 101 kg N per hectare ) on soil microbial C dynamics as measured by soil microbial biomass C (SMBC) along with soil microbial respiration over the 2013 cotton growing season at Jackson, West Tennessee. The study was set as ...
Northern Bobwhite (Colinus Virginianus) Habitat Selection On A Reclaimed Surface Mine In Western Kentucky, 2014 University of Tennessee - Knoxville
Northern Bobwhite (Colinus Virginianus) Habitat Selection On A Reclaimed Surface Mine In Western Kentucky, Ashley Marie Unger
Reclaimed mines present an opportunity to provide large tracts of habitat for northern bobwhite (Colinus virginianus). Reclaimed mine sites are commonly planted to non–native species, including sericea lespedeza (Lespedeza cuneata) and tall fescue (Schedonorus phoenix), which can inhibit growth of more desirable plant species and limit favorable structure for bobwhite. Although bobwhite are found on reclaimed mine sites, there have been no studies documenting how bobwhites use various vegetation types common to reclaimed mine land. Habitat use studies can provide information on how bobwhite select vegetation types on these landscapes and help direct future management decisions. We trapped and ...
Ranch-Level Economic Impacts Of Altering Grazing Policies On Federal Land To Protect The Greater Sage-Grouse, 2014 University of Wyoming
Ranch-Level Economic Impacts Of Altering Grazing Policies On Federal Land To Protect The Greater Sage-Grouse, John A. Tanaka, Neil R. Rimbey, L. Allen Torell
John A Tanaka
No abstract provided.
Un Cuento Satírico En Medio Del Debate Sobre El Darwinismo En México, 2014 University of South Florida
Un Cuento Satírico En Medio Del Debate Sobre El Darwinismo En México, Miguel A. Fernández Delgado Mafd
Alambique: Revista académica de ciencia ficción y fantasia / Jornal acadêmico de ficção científica e fantasía
Charles Darwin's theory of biological evolution of species was accepted or rejected by Mexican scientists, including Gabino Barreda, representative of Comte's philosophy. It was also included by Justo Sierra in a history book for the Escuela Nacional Preparatoria, a decision which raised a lot of criticism from conservative groups. It is also discussed the implications of social Darwinism in the early Twentieth Century Mexico. The document we offer is a satire published in those years, which resembles the tone of Swift's Gulliver Travels.
Aquaponics And Basil Plant Density, 2014 CSU-Sacramento
Aquaponics And Basil Plant Density, Danika L. Macmaster, Brook Murphy, Dudley Burton
STAR (STEM Teacher and Researcher) Program Posters
Aquaponics is the use of water from a fish tank to provide nutrients to plants in a soil-less environment. The rocks cultivate the bacteria that turns the ammonia into nitrates that the plants need, and the plant bed functions as a filter for the fish tank. In this study, with the guidance of Doctor Dudley Burton, Doctor Brook Murphy, we researched the optimal plant density for basil in an Aquaponics system. We attempted to control or measure all the other variables to consider, as to isolate the variable of distance between plants. The water flow was spread through the plant ...
Report On The Workshop For Life Detection In Samples From Mars, 2014 European Space Agency
Report On The Workshop For Life Detection In Samples From Mars, Gerhard Kminek, Catherine Conley, Carlton C. Allen, Douglas H. Bartlett, David W. Beaty, Liane G. Benning, Rohit Bhartia, Penelope J. Boston, Caroline Duchaine, Jack D. Farmer, George J. Flynn, Daniel P. Glavin, Yuri Gorby, John E. Hallsworth, Rakesh Mogul, Duane Moser, P. Buford Price, Ruediger Pukall, David Fernandez-Remolar, Caroline L. Smith, Kenneth M. Stedman, Andrew Steele, Ramunas Stepanauskas, Henry Sun, Jorge L. Vago, Mary A. Voytek, Paul S. Weiss, Frances Westfall
Biology Faculty Publications and Presentations
The question of whether there is or was life on Mars has been one of the most pivotal since Schiaparellis’ telescopic observations of the red planet. With the advent of the space age, this question can be addressed directly by exploring the surface of Mars and by bringing samples to Earth for analysis. The latter, however, is not free of problems. Life can be found virtually everywhere on Earth. Hence the potential for contaminating the Mars samples and compromising their scientiﬁc integrity is not negligible. Conversely, if life is present in samples from Mars, this may represent a potential source ...
Environews #9: The Sunshine State Is In A State., 2014 University of Western Ontario
Environews #9: The Sunshine State Is In A State., Richard B. Philp
Richard B. Philp
Sewage contamination and fertilizer runoff are polluting Florida's springs and rivers and legislative protection is weak. Lion fish are invading northern Gulf waters.
Soil Moisture And Temperature Conditions Related To Cheatgrass Establishment Failure, 2014 Utah State University
Soil Moisture And Temperature Conditions Related To Cheatgrass Establishment Failure, Lauren Ducas
All Graduate Plan B and other Reports
Cheatgrass, a widespread invasive plant, has taken over many rangelands in the Intermountain West. Restoration efforts have not met with much success. Early in cheatgrass’ growth period, if air temperatures fall too low and soils too dry, growth may be disrupted to the point of death of the cheatgrass plants. In this case, cheatgrass stands may revert to bare ground, providing opportunities for other invasive plants to establish, or possible restoration of native perennials. We conducted a computer modeling and observational field study to determine if air temperature and soil moisture conditions below its tolerance are associated with failure of ...
Death Acceptance In Widowhood, 2014 University of Kentucky
Death Acceptance In Widowhood, Staci Ernsberger
Theses and Dissertations--Family Sciences
Death is a universal event that all living things experience. Older adults, in particular, are more mindful of death than younger generations because of their proximity and increased exposure to it. In addition, thoughts of one’s own death often increase with the death of a spouse. Previous research has explored the role of social support in death acceptance and the effect of previous marital satisfaction on a widow’s well-being. However, there is a lack of research regarding the experience of a widow’s personal death acceptance relative to spousal death acceptance and marital satisfaction. This phenomenological study aims ...
The Great Salt Lake's Two Deep Brine Layers, 2014 Utah State University
The Great Salt Lake's Two Deep Brine Layers, Wayne A. Wurtsbaugh
Watershed Sciences Faculty Publications
No abstract provided.
Great Salt Lake's Two Deep Brine Layers, 2014 Utah State University
Great Salt Lake's Two Deep Brine Layers, Wayne A. Wurtsbaugh
Wayne A. Wurtsbaugh
Two major causeways that divide the Great Salt Lake have radically changed salt balances in different sections of the lake, and have caused deep brine layers to form. For you scrabble buffs, limnologists call these layers “monimolimnions”. In 1959 the Southern Pacific Railway built a 13- mile rock-fill causeway across the main lake, dividing it in half. T
Land Use And Climate Variability Amplify Carbon, Nutrient, And Contaminant Pulses: A Review With Management Implications, Sujay S. Kaushal, Peter M. Mayer, Philippe G. Vidon, Rose M. Smith, Micheal J. Pennino, Tamara A. Newcomer, Shuiwang Duan, Claire Welty, Kenneth T. Belt
U.S. Environmental Protection Agency Papers
Nonpoint source pollution from agriculture and urbanization is increasing globally at the same time climate extremes have increased in frequency and intensity. We review >200 studies of hydrologic and gaseous fluxes and show how the interaction between land use and climate variability alters magnitude and frequency of carbon, nutrient, and greenhouse gas pulses in watersheds. Agricultural and urban watersheds respond similarly to climate variability due to headwater alteration and loss of ecosystem services to buffer runoff and temperature changes. Organic carbon concentrations/exports increase and organic carbon quality changes with runoff. Nitrogen and phosphorus exports increase during floods (sometimes by ...
Modern Cavemen? Stereotypes And Reality Of The Ancestral Health Movement, 2013 Princeton University
Modern Cavemen? Stereotypes And Reality Of The Ancestral Health Movement, David B. Schwartz, Hamilton M. Stapell
Journal of Evolution and Health
Both academic and popular interest in the ancestral health movement, or “paleo” lifestyle, has grown rapidly in recent years. More people than ever are joining the movement, and more books and articles are being published on the topic. Media coverage and certain societal preconceptions of the movement have also increased. More often than not, followers of a paleo lifestyle are thought to be “modern cavemen”: athletic, single, meat-eating, young, white, and male. To test whether or not these stereotypes are true, the authors of the present study created the first large, academic survey (N = 3,967) of the ancestral health ...
Population Dynamics Of The Louisiana Black Bear In The Upper Atchafalaya River Basin, 2013 University of Tennessee - Knoxville
Population Dynamics Of The Louisiana Black Bear In The Upper Atchafalaya River Basin, Kaitlin Christine O'Connell
The Louisiana black bear (Ursus americanus luteolus) is listed as Threatened under the Endangered Species Act as a result of habitat loss and human-related mortality. Two of the 3 sub-populations must be viable for delisting to occur. I collected hair samples from 2010 to 2012 in a DNA mark-recapture study to augment data collected from 2007 to 2009 in the Upper Atchafalaya River Basin (UARB) to estimate abundance (N), growth rate (λ), and apparent survival rates (φ) to ultimately be used in a population viability analysis. In addition, I evaluated the effects of the opening of the Morganza Spillway in ...
Common Core 4th Grade Environmental Science Lesson Plans For California Teachers, 2013 California Polytechnic State University - San Luis Obispo
Common Core 4th Grade Environmental Science Lesson Plans For California Teachers, Gillian Schoenfeld
Natural Resources Management and Environmental Sciences
This project and its analyses were conducted to assist California fourth grade elementary school teachers in adjusting to teaching Common Core standards and science curriculum in their classrooms. The project included the creation of lesson plans, which could be utilized throughout the state of California.
As the Common Core standards, California’s Next Generation Science Standards for K- 12, were just proposed in June of 2013, these lesson plans would help teachers update their lessons and provide them materials and concepts of how to do so. These lessons provide higher-order thinking for students, which is the whole concept of the ...