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Recentering Research Practices in Higher Education: Post Course Launch Analysis [Executive Summary]
No full textThrough my collaboration with the DEI Fellowship at the University of Northern Colorado, I have created an undergraduate course (SOC 395 Applied Research For Careers) that aims to develop career-based research skills through indigenous frameworks
Venom Characterization of Three Rear-Fanged Snake Species from the Rio Grande Valley of Texas
No full textThe lower Rio Grande Valley of southern Texas is a biologically diverse, semitropical region where a number of species, including neotropical dipsadid and colubrid snakes, narrowly range into the United States from Mexico. Rear-fanged snakes are an understudied group of species in terms of venom composition when compared to front-fanged species such as atractaspidids, elapids, and vipers. Here I describe the composition of venoms of three rear-fanged species, Coniophanes imperialis, Drymobius margaritiferus, and Leptodeira septentrionalis, via enzymatic, electrophoretic, toxinological and proteomic analyses. Two of these species (Coniophanes, Leptodeira) are dipsadid snakes, and the venom of these species is relatively complex, with five major protein families represented (P-III snake venom metalloproteinase (SVMP), cysteine-rich secretory protein (CRiSP), phospholipase A2 (PLA2), three-finger toxins (3FTx), and acetylcholinesterase (AChase). For both species, the venoms are largely dominated by metalloproteinases. Venoms from these dipsadid species are moderately toxic to mice, but much less toxic to Anolis lizards. Also present in the same geographical location, the colubrid Drymobius margaritiferus venom proteome is relatively simple, being dominated by 3FTx(s), with apparent minor levels of CRiSP, P-III SVMP, PDE, and very low levels of serine proteases. Drymobius venom is moderately toxic to non-Swiss albino (NSA) mice (similar to Coniophanes and Leptodeira) but nearly three times as toxic to Anolis lizards. Differences in toxicities between anoles and mice suggest taxon-specific toxins that target iv specific prey species. These differences in composition between the dipsadid and colubrid species are also apparent in the pathology of envenomated prey, as mice administered Coniophanes or Leptodeira venom present with considerable edema/hemorrhaging, while anoles show no signs of hemorrhage. Mice and lizards injected with Drymobius venom exhibit no hemorrhagic pathology, but present with symptoms suggestive of neurotoxicity (ptosis, lethargy, paralysis, agonal breathing). Venoms from the three species analyzed, with samples from the extreme northern extension of their ranges, show basic compositional patterns similar to those that have been observed in other colubrid and dipsadid rear-fanged snakes, with venoms dominated by three-finger toxins (several New World colubrids) or by metalloproteinases (numerous dipsadids). Results presented here indicate that the broad compositional patterns of venoms typical in many front-fanged snake species (viper type I/type II venoms, elapid vs viperid venoms) are also reflected in the dichotomous patterns observed in rear-fanged snakes
Ravel in the Post-Tonal World: An Analysis of Select Songs from the Collection Histoires Naturelles
Get PDFWhen Ravel composed Histoires Naturelles, the musical world was in a climate of change. As composers began to transition away from tonality, chords and chord progressions lost importance as other ways to maintain a hierarchy of pitches were explored. While the functional grammar of standard tonality never disappeared per se, these traditional tonal components (chords, key areas, etc.) adopted different roles. It was in this environment that Ravel composed music. However, even though he had every ability to abandon the rules altogether, he used the past as a foundation rather than an edict that must be maintained out of a sense of tradition.
The text set in this specific composition comes from a collection of poems by Jules Renard. The prose describes various animals, and Ravel chose to set the poems “Le Paon” (the peacock), “Le Grillon” (the cricket), “Le Cygne” (the swan), “Le Martin-pêcheur” (the kingfisher), and “La Pintade” (the guinea fowl). In my analysis of the first three songs, Ravel accurately translates the text through the music using a mixture of melodic, rhythmic, and compositional techniques. Despite this, the premier brought about negative reactions from both the poet and the public.
The goal of the paper proposed is to demonstrate how Ravel’s song cycle Histoires Naturelles demonstrates a transition away from tonality, and how Ravel uses compositional techniques to bring the story to life through sound. Through chord/note analysis, form analysis, and music-to-text analysis, I will explore the musical world of Histoires Naturelles and the elements that make it a transitional work of art
Relics of Fort Bent Preserved: No Trace Remains Today of Frontier Fort on Arkansas River
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Operating Replica Bent\u27s Fort Shop
Get PDFPlans for replica adobe Blacksmith shop and it\u27s operation
The Rediscovery of Bent\u27s Fort
Get PDFA general historical review of Bent\u27s Fort and its rediscover
History Buffs Recreate the days of Dragoons at Bent\u27s Old Fort
Get PDFReenactment of Army Dragoons at Bent\u27s Old For
