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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Devil In A Hula Skirt: Comparative Conservation Efforts Between The United States And Australia Using Two Endemic Species As Case Studies, Sarah Catherine Kuchinsky
Devil In A Hula Skirt: Comparative Conservation Efforts Between The United States And Australia Using Two Endemic Species As Case Studies, Sarah Catherine Kuchinsky
Undergraduate Honors Thesis Collection
There is a biodiversity crisis in our midst. An abundance of technology and innovation in the last 200 years has revamped our world but at the cost of pushing many species to extinction. Since the passing of the Endangered Species Act by Congress in 1973, more than 100 species in the United States have disappeared (Wilson 2006). The International Union for the Conservation of Nature (IUCN) stats that "19,265 species out of the 59,507 so far assessed as threatened with extinction," (IUCN 2011). Extinction is the result of a combination of factors caused by human environmental disturbance. Disturbances in the …
Teaching Old Buildings New Tricks: Benefits Of Retrofitting Indianapolis Buildings With Green Roofs, Sarah Elizabeth Strobl
Teaching Old Buildings New Tricks: Benefits Of Retrofitting Indianapolis Buildings With Green Roofs, Sarah Elizabeth Strobl
Undergraduate Honors Thesis Collection
Not your basic rooftop garden, green roofs contain growing media and are planted with various types of vegetation. Green roofs can be either intensive, with soil depths above 6 inches and increased size and attractiveness of vegetation, such as trees and shrubs, or extensive, with soil depths between 2-6 inches and low, moss or grass-like plants that require little care (Getter et al. 2009, Indianapolis DPW 2008, Obemdorfer et al. 2007, US DOE 2004).
Although green roofs are initially more expensive than traditional roofing techniques due to the cost of additional materials, the long-term cost savings are high and can …
Synthesis Of Fluorogenic Substrates For The Enzymatic Characterization Of Rv0045c From M. Tuberculosis, Kelly Jo Mckenna
Synthesis Of Fluorogenic Substrates For The Enzymatic Characterization Of Rv0045c From M. Tuberculosis, Kelly Jo Mckenna
Undergraduate Honors Thesis Collection
Mycobacterium tuberculosis is the pathogenic bacterial agent commonly responsible for tuberculosis, or TB. Although treatment exists for the active form of tuberculosis, no method has been developed for eliminating M tuberculosis in its dormant state. One hypothesized method for the elimination of dormant TB is to develop an inhibitor specific for M tuberculosis esterases and lipases, as these esterases and lipases are essential to the survival of dormant TB infection. In this research, the substrate specificity of the Rv0045c esterase from M tuberculosis was studied due to the essential role of Rv0045c in TB metabolism and its dissimilarity to other …
Various Gaits Of African Elephant Calves, Elizabeth Anne Jennings
Various Gaits Of African Elephant Calves, Elizabeth Anne Jennings
Undergraduate Honors Thesis Collection
It is commonly believed that elephants exhibit only one gait, a lateral sequence walk. However, recently there have been several interesting studies on the footfall patterns of adult African elephants (Loxodonta africana). Scientists have recognized that elephants actually exhibit two patterns of locomotion: a lateral sequence walk and an amble. The amble is a slight modification of the lateral sequence gait. The present study extends this work by examining the relationship between gait and speed in African elephant calves at the Indianapolis Zoo. I collected frame-by-frame observational video data from a newborn calf born at the Indianapolis Zoo across a …
Congenic Strain Analysis Reveals Genes That Are Rapidly Evolving Components Of A Prezygotic Isolation Mechanism Mediating Incipient Reinforcement, Christina M. Laukaitis, Corina Mauss, Robert C. Karn
Congenic Strain Analysis Reveals Genes That Are Rapidly Evolving Components Of A Prezygotic Isolation Mechanism Mediating Incipient Reinforcement, Christina M. Laukaitis, Corina Mauss, Robert C. Karn
Scholarship and Professional Work - LAS
Two decades ago, we developed a congenic strain of Mus musculus, called b-congenic, by replacing the androgen-binding protein Abpa27a allele in the C3H/HeJ genome with the Abpa27b allele from DBA/2J. We and other researchers used this b-congenic strain and its C3H counterpart, the a-congenic strain, to test the hypothesis that, given the choice between signals from two strains with different a27 alleles on the same genetic background, test subjects would prefer the homosubspecific one. It was our purpose in undertaking this study to characterize the segment transferred from DBA to the C3H background in producing the b-congenic …
Soil C And N Changes With Afforestation Of Grasslands Across Gradients Of Precipitation And Plantation Age, Sean T. Berthrong, Gervasio Pinero, Esteban G. Jobbagy, Robert B. Jackson
Soil C And N Changes With Afforestation Of Grasslands Across Gradients Of Precipitation And Plantation Age, Sean T. Berthrong, Gervasio Pinero, Esteban G. Jobbagy, Robert B. Jackson
Scholarship and Professional Work - LAS
Afforestation, the conversion of unforested lands to forests, is a tool for sequestering anthropogenic carbon dioxide into plant biomass. However, in addition to altering biomass, afforestation can have substantial effects on soil organic carbon (SOC) pools, some of which have much longer turnover times than plant biomass. An increasing body of evidence suggests that the effect of afforestation on SOC may depend on mean annual precipitation (MAP). The goal of this study was to test how labile and bulk pools of SOC and total soil nitrogen (TN) change with afforestation across a rainfall gradient of 600–1500 mm in the Rio …
Taste Neophobia And C-Fos Expression In The Rat Brain, Jian-You Lin, Christopher T. Roman, Joe Arthurs, Steve Reilly
Taste Neophobia And C-Fos Expression In The Rat Brain, Jian-You Lin, Christopher T. Roman, Joe Arthurs, Steve Reilly
Scholarship and Professional Work – COPHS
Taste neophobia refers to a reduction in consumption of a novel taste relative to when it is familiar. To gain more understanding of the neural basis of this phenomenon, the current study examined whether a novel taste (0.5% saccharin) supports a different pattern of c-Fos expression than the same taste when it is familiar. Results revealed that the taste of the novel saccharin solution evoked more Fos immunoreactivity than the familiar taste of saccharin in the basolateral region of the amygdala, central nucleus of the amygdala, gustatory portion of the thalamus, and the gustatory insular cortex. No such differential expression …
The Roles Of Gene Duplication, Gene Conversion And Positive Selection In Rodent Esp And Mup Pheromone Gene Families With Comparison To The Abp Family, Robert C. Karn, Christina M. Laukaitis
The Roles Of Gene Duplication, Gene Conversion And Positive Selection In Rodent Esp And Mup Pheromone Gene Families With Comparison To The Abp Family, Robert C. Karn, Christina M. Laukaitis
Scholarship and Professional Work - LAS
Three proteinaceous pheromone families, the androgen-binding proteins (ABPs), the exocrine-gland secreting peptides (ESPs) and the major urinary proteins (MUPs) are encoded by large gene families in the genomes of Mus musculus and Rattus norvegicus. We studied the evolutionary histories of the Mup and Esp genes and compared them with what is known about the Abp genes. Apparently gene conversion has played little if any role in the expansion of the mouse Class A and Class B Mup genes and pseudogenes, and the rat Mups. By contrast, we found evidence of extensive gene conversion in many Esp genes although …