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Full-Text Articles in Life Sciences
Fall 2014
Scientia
CSH progress notes; Alumna entrepreneur finds success at the intersection of chemistry and law; Lions, lycopods and laboratories: CSH students thrive in summer internships; Fielding a team for a mission to Mars; Professor Craig Klugman on the medical humanities; Lab Notes
What Components Influence Hypothetical Willingness To Pay For The Environmental Benefits Of Shade-Grown Coffee?, Ellen V. Webb
What Components Influence Hypothetical Willingness To Pay For The Environmental Benefits Of Shade-Grown Coffee?, Ellen V. Webb
DePaul Discoveries
Coffee is one example of a good whose consumption can lead to environmental degradation that the consumer is unaware of. During the 19th century, new high-yield varieties of coffee were developed that could be grown under the direct sunlight of recently deforested areas. An ecologically friendly alternative to mass-produced sun-grown systems is shade-grown coffee. This coffee is grown under traditional forest cover, providing ecological benefits such as species habitat, but at lower yields. In the global market, a price premium is the practice of placing a higher price than the market price on a specific good. If consumers value …
How Do Management Treatments Affect Invasive Cattail (Typha X Glauca) And Pore Water Nutrient Concentrations?, Yarency Rodriguez
How Do Management Treatments Affect Invasive Cattail (Typha X Glauca) And Pore Water Nutrient Concentrations?, Yarency Rodriguez
DePaul Discoveries
Invasive species are problematic for wetland managers, but little is known about how common management treatments influence nutrient cycling or plant responses. This study tested three experimental treatments (mowing, herbiciding, and harvesting (i.e., removal of aboveground biomass)) on several response variables: wetland soil porewater nutrient content (NO3-, NH4+, PO4-), native plant and invasive-Typha density, and light attenuation through the plant canopy. Seventeen days post-treatment, herbiciding resulted in higher porewater phosphate concentrations (55.63 µg-P/L) than harvesting (8.95 µg-P/L). After 24 days, herbicide had higher porewater phosphate concentration (72.03 µg-P/L) than all …
The Effects Of Messages On Environmental Behavior, Miki Yoshimura-Rank
The Effects Of Messages On Environmental Behavior, Miki Yoshimura-Rank
DePaul Discoveries
Over the past few decades environmental awareness and education have increased without a corresponding increase in pro-environmental behavior. Recent research on public service announcements and social marketing theory indicate that positive injunctive with positive descriptive norms are most effective in increasing proenvironmental behavior. The current study focused on the impact of different types of environmental messages on promoting recycling behavior in college students. Over 250 recycling actions were measured in the experiment. It was hypothesized that the positive injunctive with positive descriptive statement would be most effective in causing more university students to recycle. The findings, although not statistically significant, …
Fossil Marine Vertebrates From The Middle Part Of The Upper Cretaceous Graneros Shale In Southeastern Nebraska, Alexander D. Meglei
Fossil Marine Vertebrates From The Middle Part Of The Upper Cretaceous Graneros Shale In Southeastern Nebraska, Alexander D. Meglei
DePaul Discoveries
The Graneros Shale is a rock unit formed in the Late Cretaceous Western Interior Seaway of North America. In this study, I report an assemblage of fossil vertebrates from the middle portion of the Graneros Shale in southeastern Nebraska. The estimated age of this fauna is about 97 million years old, and it is dominated by carnivores that consist of at least 11 taxa, comprising of eight sharks, one bony fish, and two reptilians (turtle and plesiosaur). The fauna includes taxa indicative of a nearshore, but fully marine, environment that do not contradict with previous paleoenvironmental inferences made for the …
Reversible Transformations Of P-N Coordination Networks Upon Interactions With Solvent, Jason Kositarut
Reversible Transformations Of P-N Coordination Networks Upon Interactions With Solvent, Jason Kositarut
DePaul Discoveries
No abstract provided.
Effects Of Co2 Enrichment On Biomass Yield And Response To Drought In Radish And Winter Wheat, Alex Hertel
Effects Of Co2 Enrichment On Biomass Yield And Response To Drought In Radish And Winter Wheat, Alex Hertel
DePaul Discoveries
Atmospheric CO2 levels have been increasing since the industrial revolution. There are many questions about the impacts of elevated CO2 levels and how the subsequent rise in average global temperature will ultimately impact the planet. One change that many climate scientists are confident about is a global redistribution of precipitation. This study specifically addressed the coupled effects of elevated CO2 and drought stress for two species, radish, Raphanus sativus, and winter wheat, Triticum hybernum. To understand how future climate changes might affect plants, radish and winter wheat were grown in simulated conditions of elevated CO2 at 400 and …
Fossil Fish Fauna From The Uppermost Graneros Shale (Upper Cretaceous) In Southeastern Nebraska, Kevin R. Jansen
Fossil Fish Fauna From The Uppermost Graneros Shale (Upper Cretaceous) In Southeastern Nebraska, Kevin R. Jansen
DePaul Discoveries
The Graneros Shale is a rock deposited in the Late Cretaceous Western Interior Seaway of North America about 95 million years ago. Many fossil fish remains were collected from the uppermost portion of the Graneros Shale in southeastern Nebraska and were analyzed for their unique characteristics. These collected fish remains consist of at least 24 vertebrate taxa, including 14 cartilaginous fishes and 10 bony fishes. The locality is characterized by the abundance of benthic (bottom-dwelling) taxa, and indicative of a well-oxygenated, shallow marine environment. This is consistent with the paleoenvironmental inference previously made for the Graneros Shale based on lithological …
Fossil Vertebrates From The Basal Lincoln Limestone Of The Greenhorn Limestone (Upper Cretaceous) In Southeastern Colorado, Christopher Gallardo
Fossil Vertebrates From The Basal Lincoln Limestone Of The Greenhorn Limestone (Upper Cretaceous) In Southeastern Colorado, Christopher Gallardo
DePaul Discoveries
The basal Lincoln Limestone is a 95-million-year-old fossiliferous rock layer deposited under the Late Cretaceous Western Interior Seaway in North America. Over 4,500 identifiable vertebrate remains were collected from the stratigraphic horizon at a new fossil locality referred to as the Table Mesa locality in southeastern Colorado. Twenty-nine marine vertebrate taxa were identified comprising 13 chondrichthyans (cartilaginous fishes), 14 osteichthyans (bony fishes), and two squamate reptiles (lizards). These remains were then sorted according to their taxonomic similarities for faunal comparisons with other basal Lincoln Limestone localities. Proportions of common taxa at the Table Mesa locality are similar to another basal …
Spring 2014
Scientia
Q&A with Dean Koocher; Proud graduate discovers love of learning at DePaul; Intrepid biologist inspires lifelong lessons; Student organization spotlight: Psi Chi; Smart phones and synthetic bone capture Associate Professor Gabriela Gonzalez Aviles' interest; All for DePaul; Lab notes