Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- American chestnut (3)
- Ants (1)
- Aquatic (1)
- Beaches (1)
- Beer (1)
-
- Belgrade Lakes (1)
- Biofilms (1)
- Biogeochemistry (1)
- Brewing (1)
- Bromine (1)
- Bromoform (1)
- Bromoperoxidase (1)
- Chinese chestnut (1)
- Chlorophyll (1)
- Climate (1)
- Climate Change (1)
- Coastal (1)
- Conservation (1)
- Craft brewing (1)
- Early education (1)
- Economics (1)
- Education (1)
- Emerging contaminants (1)
- Empirical Analysis (1)
- Environment (1)
- Environmental education (1)
- Gas chromatography (1)
- International Tourism (1)
- Isotope (1)
- Isotope signature (1)
Articles 1 - 15 of 15
Full-Text Articles in Physical Sciences and Mathematics
Disappearance Of Phragmites In Louisiana And Nipponaclerda Biwakoensis, Rachel Tugger
Disappearance Of Phragmites In Louisiana And Nipponaclerda Biwakoensis, Rachel Tugger
Honors Theses
No abstract provided.
Characterizing Diatom Biofilms And Their Influence On The Sand Biogeochemistry Of High Energy Beaches, Logan C. Jarrell
Characterizing Diatom Biofilms And Their Influence On The Sand Biogeochemistry Of High Energy Beaches, Logan C. Jarrell
Honors Theses
High energy beaches are among the most dynamic ecological settings on Earth. Compared to mudflats, diatoms of high energy beaches have been more neglected in the literature, particularly true of the intertidal biofilms that form and dissipate with nutrient cycling and light intensity over the tidal cycle. Although short lived, the productivity of these biofilms may be critical to the organic-poor sand. Through sediment coring and subsequent analyses of the uppermost sand of three suspected biofilm stations—non-runnel, runnel crest, and runnel trough—along with seemingly bare sand as a control, this study sought to verify the presence of diatom biofilms and …
Evaluation Of Blight Resistance In Chestnut F2 Half-Sibling And Full-Sibling Families Via Small Stem Assay, Kevin Gentner
Evaluation Of Blight Resistance In Chestnut F2 Half-Sibling And Full-Sibling Families Via Small Stem Assay, Kevin Gentner
Honors Theses
In 1904, Cryphonectria parasitica, the causal agent for chestnut blight, was imported into North America on chestnut nursery stock from China. Fifty-five years later, nearly all full-grown wild American chestnut trees (Castanea dentata) were dead. A century of work has been put into restoring the American chestnut to its rightful place among the forest canopy. Since the 1980s, The American Chestnut Foundation has pursued backcross breeding to introgress blight resistance into C. dentata from the resistant Chinese species (C. mollissima), and has used progeny testing to make predictions about parental resistance in B3F2 chestnuts. We performed a small stem assay …
Environmental Clearinghouse Of Schenectady, Kate Van Patten
Environmental Clearinghouse Of Schenectady, Kate Van Patten
Honors Theses
This paper analyses Environmental Clearinghouse of Schenectady, a local nonprofit environmental organization. The paper investigates the history of the organization as well as the effectiveness of its organizational and funding habits. A literary review was conducted to analyze the success of ECOS mission as well as the positive effects ECOS has on society using elements such as environmental education, the importance of early environmental education, how well the organization connects urban residents with the outdoors and the effectiveness of environmental programs. This research promotes the importance of early environmental education on our future generations health and environmental conditions. Additionally, through …
An Empirical Analysis Of Climatic, Geographic, And Cultural Determinants Of International Tourism, Ethan Straus
An Empirical Analysis Of Climatic, Geographic, And Cultural Determinants Of International Tourism, Ethan Straus
Honors Theses
Each year, billions of people visit different countries all around the world. For many of those countries, tourism is their primary industry, leading to millions of jobs and dollars in revenue. It is expected that by 2020 total International Tourism Receipts will reach 2 trillion US dollars annually. Currently, tourism employs an estimated 200 million people around the world. With the continued progression of climate change, the tourism industry is facing a newfound threat. Global temperatures and the seal level are both expected to rise significantly by the end of the century. Additionally, the Intergovernmental Panel on Climate Change has …
Conservation And Collection Of Castanea Dentata Germplasm In The South, Trent Deason
Conservation And Collection Of Castanea Dentata Germplasm In The South, Trent Deason
Honors Theses
The American chestnut, Castanea dentata, has been devastated by the exotic invasive pathogens Cryphonectria parasitica and Phytophthora cinnamomi to which it has no resistance. The American Chestnut Foundation (TACF) has developed an interspecific backcross breeding program to introgress disease resistance from Asian chestnut species, primarily Castanea mollissima, into C. dentata hybrid populations. The genetic base of this program can be expanded by utilizing vegetative propagation through grafting in order to collect and conserve American chestnut individuals not amenable to traditional breeding. As the majority of the surviving American chestnuts are confined to the understory, they are shaded out by the …
Parental Care, Offspring Abandonment, And Filial Cannibalism, Mackenzie Davenport
Parental Care, Offspring Abandonment, And Filial Cannibalism, Mackenzie Davenport
Honors Theses
Parental care is a fundamental life-history trait that is found in many animals (reviewed in Royle et al. 2012). Parental care can include behaviors such as egg cleaning (Knouft et al. 2003), egg guarding (Royle et al. 2012, pg. 4), egg provisioning (Simmons & Parker 1989; Hilker & Meiners 2002; Royle et al. 2012, pg. 2), and oviposition-site selection (Refsnider & Janzen 2010). Such forms of parental care typically result in the spatial clumping of parents and their offspring. This often leads to density effects on within-clutch egg mortality, meaning that when within-clutch egg density increases, egg mortality also increases. …
Changes In Ant Biodiversity Across An Urban Gradient, Hao Brooks
Changes In Ant Biodiversity Across An Urban Gradient, Hao Brooks
Honors Theses
There are two aims to this study: compare diversity across an urban gradient and across seasons. We deployed traps and identified the collected 12 ant species at nine different sites centered at Chattanooga, Tennessee, for the purpose of relating levels of urbanization to the diversity of ant species at each site. We successfully sampled in the summer (June 27, 2017) and spring (March 31, 2018), and unsuccessfully sampled in winter (Feb. 16, 2018) when we collected zero ants, likely due to cold soil temperatures. To quantify “urbanization” we divided the sites into “Urban” core verses surrounding “Suburban” area using a …
Implementing Early Screening Methods To Detect Resistance To Phytophthora Cinnamomi In Backcross Chinese-American Chestnut Hybrids, Kirsten Hein
Honors Theses
Phytophthora root rot (PRR), caused by the oomycete Phytophthora cinnamomi Rands., is one of the two greatest obstacles to survival of American chestnut (Castanea dentata Borkh.). The other is chestnut blight, caused by the ascomycete Cryphonectria parasitica (Murr.) Barr. Developing early and reliable PRR screening methods can facilitate the efficient introgression of PRR resistance from Chinese chestnut (C. mollissima Blume.) into the populations of potentially chestnut blight resistant trees currently under development by The American Chestnut Foundation (TACF). This study tests the efficacy of a method for early identification of PRR-resistant hybrid chestnuts in a greenhouse/nursery setting. The chestnut blight …
A Comparison Of Frankenbrew And Traditionally Manufactured Brewing Equipment, Daniel King
A Comparison Of Frankenbrew And Traditionally Manufactured Brewing Equipment, Daniel King
Honors Theses
Opening a new business can be a daunting task. Between the legal paperwork, securing the best perceived location, hiring new employees, the investment can require the use of a life savings. In the brewing industry, this investment can be amplified by the cost of purchasing production scale brewing equipment. Because of this, many start-up brewing operations have turned to the use of Frankenbrew equipment within their brewing process. The term “Frankenbrew” was coined by Tom Hennessy of Colorado Boy Pub & Brewery. The term refers to any equipment incorporated into a brewery that was not originally intended for that purpose, …
Resilience In Context: How Cultural Factors Influence Migration Decisions Of Individuals In Flood-Prone Areas Of Coastal Louisiana, Brandon Champagne
Resilience In Context: How Cultural Factors Influence Migration Decisions Of Individuals In Flood-Prone Areas Of Coastal Louisiana, Brandon Champagne
Honors Theses
No abstract provided.
Phylogenetic Similarities Among Bacteria Isolated From Songbirds, Rachel Croy
Phylogenetic Similarities Among Bacteria Isolated From Songbirds, Rachel Croy
Honors Theses
No abstract provided.
Gastrointestinal Helminth Prevalence In Lesser Scaup (Aythya Affinis) Wintering On Lake Pontchartrain, Louisiana, Usa, Sydney Cottingham
Gastrointestinal Helminth Prevalence In Lesser Scaup (Aythya Affinis) Wintering On Lake Pontchartrain, Louisiana, Usa, Sydney Cottingham
Honors Theses
No abstract provided.
Stable Bromine Isotope Signature Of Bromoform From Enzymatic And Abiotic Formation Pathways And Its Application In Identifying Sources Of Environmental Bromoform In The Damariscotta River, Chengyang Wang
Honors Theses
Bromoform is a major source of atmospheric bromine. Most bromoform is produced by marine organisms including macroalgae and phytoplankton, using the enzyme bromoperoxidase (BPO). Bromoform can also be a byproduct of industrial processes such as water disinfection. Identifying sources of environmental bromoform is still a challenge. A novel technique of using quadrupole mass spectrometry coupled to a gas chromatography (GCqMS) was developed and optimized for Br isotope analyses. The study shows that GCqMS in single ion monitoring (SIM) mode can measure 81Br with precision of around ±0.7‰ (60pmol bromoform injected). This study aims to investigate stable Br isotopes of bromoform …
Presence And Potential Sources Of Pharmaceutical And Personal Care Product Chemicals In Messalonskee Lake, Alyssa T. Kullberg
Presence And Potential Sources Of Pharmaceutical And Personal Care Product Chemicals In Messalonskee Lake, Alyssa T. Kullberg
Honors Theses
Pharmaceuticals and personal care product chemicals (PPCPs) represent a large group of contaminants that are mostly not regulated in surface or drinking water and whose presence and environmental and health impacts are poorly understood. We investigated the presence and potential sources of 18 PPCPs in Messalonskee Lake. We collected samples four times over the summer of 2017 at 13 sites around the lake. Samples were tested for PPCPs using liquid chromatography-tandem mass spectrometry. We detected five out of the 18 PPCPs we tested for at the ng/L level: caffeine, 1,7-dimethylxanthine, acetaminophen, sulfachloropyridazine, and amphetamine. PPCPs showed a significant positive correlation …