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Articles 1 - 7 of 7
Full-Text Articles in Physical Sciences and Mathematics
Silence Is The Loudest Sound, Emma Christian
Silence Is The Loudest Sound, Emma Christian
Honors College
Rhinoceros poaching is an act of killing a rhinoceros in order to take its horn, which is then used for human consumption or for cultural traditions. Both the Asian and the African rhinoceros are targets because of the demand from China, Vietnam, Yemen, and other countries around the world. Traditional Chinese Medicine practice is the main demand for rhinoceros horn and this demand in rhinoceros horn has caused an increase in the black market. Conservation of the rhinoceros is decreasing primarily because the price of rhinoceros horn is more than double the average household income in South Africa, thus making …
Sustainability's Inconvenient Discourse, Christine Gilbert
Sustainability's Inconvenient Discourse, Christine Gilbert
Honors College
“Sustainability” has been used to indicate certain values, market a way of life, and possesses a prominent role in a number of different disciplines, yet a commonly accepted definition doesn’t seem to exist. This thesis does not aim in any sense to define this elusive term, rather it examines the themes that inform discussions of sustainability. A number of particular thematic elements are used consistently across almost all of the discourses of sustainability: generational time frames, renewable resources, as well as the relationship between sustainability and economic development. Each unique discourse handles these themes in a specific way. What’s valuable …
Detection Of Iron (Iii) Using Agarose Beads Derivatized With Desterrioxamine B, Kaiya Hansen
Detection Of Iron (Iii) Using Agarose Beads Derivatized With Desterrioxamine B, Kaiya Hansen
Honors College
The goal of our work is to provide marine scientists with a detection system which can be mounted on buoys and gliders for measuring the amount of iron (III) in sea water. Iron is the limiting nutrient for phytoplankton growth. Since phytoplankton play a key role in global carbon cycles and global warming, the iron in seawater does as well. This thesis is meant to be a proof-of-concept for a new approach to measuring iron in seawater. The essential elements of the research discussed herein include identifying particulate beads which are optically transparent in the visible region, modifying the surfaces …
Method Development For The Analysis Of Anthocyanins In Aronio Berries Via Hplc, Kyle Rousseau
Method Development For The Analysis Of Anthocyanins In Aronio Berries Via Hplc, Kyle Rousseau
Honors College
Aronia is a deciduous shrub native to the northeastern United States, with many varieties of berry colors. They are colloquially known as chokeberries and they are typically utilized to make wine, jam, juice, tea and extracts. These berries are known to contain many polyphenols, and this research examined a subclass called anthocyanins. Anthocyanins are pigment molecules common to all higher plants which change color from red to purple to blue depending on pH. It is believed that these pigments are used to attract animals to the fruit for seed dispersal and they are known to protect cells from light damage …
The Effects Of Flooding On The Microbial Communities Of Sparrow Eggs In A Temperate Maine Salt Marsh, Mattie Paradise
The Effects Of Flooding On The Microbial Communities Of Sparrow Eggs In A Temperate Maine Salt Marsh, Mattie Paradise
Honors College
Microbial infection has been shown to reduce hatching success for the eggs of tropical birds. In these ecosystems, humidity and temperature encourage bacterial growth and the transport of microbes through the pores of the egg shell. A single study in a temperate ecosystem found no noticeable change of microbial communities during the length of the incubation cycle, and thus no increased risk of microbial infection by the time of hatching. This study, however, took place in the arid Mediterranean type climate of California, a locale that likely diminishes the abilities of microbial communities to colonize and grow on egg surfaces. …
Effect Of Forest Vegetation On Nest-Site Selection By Spruce Grouse Across Two Spatial Scales, Nathaniel Scott Parkhill
Effect Of Forest Vegetation On Nest-Site Selection By Spruce Grouse Across Two Spatial Scales, Nathaniel Scott Parkhill
Honors College
The spruce grouse (Falcipennis canadensis) is a gallinaceous bird that is threatened or endangered throughout much of the southeastern limit of its range. Generally associated with short-needled conifer forests like those characteristic of northern Maine, this species may be particularly sensitive to recent changes in timber harvesting practices. I examined nest-site selection to better understand spruce grouse habitat associations in northern Maine. In the summer of 2013, I located the nests of 12 female spruce grouse in commercially-managed forests of north-central Maine. I measured vegetation characteristics at nests and at sampling points 30 meters from nests, as well …
Biodegradation And Feasibility Of Three Pleurotus Species On Cigarette Filters, Raymond Updyke
Biodegradation And Feasibility Of Three Pleurotus Species On Cigarette Filters, Raymond Updyke
Honors College
This study was designed to evaluate the biodegradation and feasibility of growing three oyster mushroom species - Pleurotus ostreatus, Pleurotus citrinopileatus, and Pleurotus djamor - on three different cigarette filter waste substrates: intact cigarette filters, blended cigarette filters, and smoked, intact cigarette filters. Cigarette filters are a common waste and are made primarily of cellulose acetate. Oyster mushrooms (Pleurotus spp.) have been shown to degrade synthetic polymers similar to cellulose acetate. In the experiment, the substrates were inoculated with mushroom spawn and placed in a growth chamber maintained at 24° C. After a six-week period, mycelium …