An Infinite Dimensional Approach to the Third Fundamental Theorem of Lie

We revisit the third fundamental theorem of Lie (Lie III) for finite dimensional Lie algebras in the context of infinite dimensional matrices.Comment: This is a contribution to the Proc. of the Seventh International Conference ''Symmetry in Nonlinear Mathematical Physics'' (June 24-30, 2007, Kyiv, Ukraine), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA

The effects of global climate change and habitat modification on the incidence of Lyme disease

Lyme disease is one of the most common vector-borne diseases around the world, and the numbers of reported cases are quickly rising. Ixodes ticks are the principal vectors, while Borrelia burgdorferi sensu lato genospecies are the etiological agents of the disease. Climate change, namely global warming, and habitat modification, namely forest fragmentation, are hypothesized to play an active role in this rise in reported cases. An analysis of the primary literature, specifically of studies focused on North America and Europe, was conducted in order to investigate these hypotheses. These studies show that global warming has precipitated a growth in tick populations as well as a northward tick migration, thereby increasing the risk of Lyme disease in emergent and endemic areas alike, for Borrelia spirochetes quickly infect naïve tick populations. Furthermore, published studies support the idea that forest fragmentation near human population centers has also increased the risk of Lyme disease in North America, for edge habitats provide suitable conditions for ticks and provide edible vegetation for the animals on which ticks feed, animals which also serve as hosts for B. burgdorferi sensu lato. In contrast, a decrease in fragmentation was found to facilitate tick invasion and establishment in Europe. These studies demonstrate that anthropogenic habitat modifications of varying types can affect ticks and their host populations and increase the risk of Lyme disease near human population centers. However, more research needs to be done to truly understand the different factors that are precipitating the rising number of cases of Lyme disease since there are significant interactions between climate change, habitat modification, and other drivers not examined here. Furthermore, understanding how these drivers function in specific geographic locations can help scientists and public officials tailor local public health measures appropriately. Finally, researchers and pharmaceutical companies must develop a safe, long-lasting, and effective vaccine against the Lyme disease spirochete, for there is not one currently available. Although easily treatable if diagnosed early, Lyme disease can progress to debilitating disease. Unfortunately, the risk of contracting this illness is currently rising and will continue to rise unless effective preventative measures are employed

Hoobla-Hoobla-Hoobla-How : Sound and Meaning in the Poetry of Wallace Stevens

What role does sound play in the meaning of a poem? This project served as an investigation into the patterns of sound in the poetry of Wallace Stevens. I selected four of Stevens’ poems: “Infanta Marina,” “Not Ideas About the Thing But the Thing Itself,” “Final Soliloquy of the Interior Paramour,” and “The Idea of Order at Key West.” I then studied these poems for patterns of rhyme, alliteration, consonance, assonance, etc. and recorded a number of readings of the poems performed by various students, professors, and writers. Comparing these readings offered valuable insight into the ways volume, emphasis, pause, and duration interact with the existent sound patterns to reinforce or alter our understanding of the poems. The project was also informed by the physical nature of sound—how humans biologically experience and interpret sound—as well as poetry’s ties to music

VEGETATION DE LA REPUBLIQUE D'HAÏTI

Caribbean Island of Gonave is a dependency of the Republic of Haiti. Despite a geological substrate only limestone and a relief (770m asl) which instead that bioclimat less tropical, it shows a tropical ecosystem diversity that leurcorrespondant in the arc insilaire Caribbean (Neotropical flora, Caribbean Ethnicity area) .An ecological study of vegetation has clarified soil science, climatology with bioclimatic card.A description of plant communities helped found in the often highly degraded environments the climax ecosystems with their counterparts in Haiti.A cartographic synthesis of vegetation is presented in conclusion.The relatively recent impact of human population on the natural environment causes degradation processes; a chance of reversibility, without entering into a modern development phase and could be considered as a model for other tropical island systems.L'Île antillaise de la Gonave est une dépendance de la République d'Haïti. Malgré un substrat géologique uniquement calcaire et un relief (770m d'altitude) qui ne la place qu'en bioclimat tropical inférieur, elle montre une diversité d'écosystème tropicaux qui ont leurcorrespondant dans l'arc insilaire caraïbe (flore néotropicale, domaine caraïbien).Une étude écologique de la végétation a permis de préciser la pédologie, la climatologie avec carte bioclimatique.Une description des groupements végétaux a permis de retrouver dans les milieux souvent très dégradés les écosystèmes climax ayant leurs équivalents en Haïti.Une synthèse cartographique de la végétation est présentée en conclusion.L'impact assez récent de la population humaine sur le milieu naturel provoque des processus de dégradation; une chance de réversibilité, sans entrer dans une phase moderne d'aménagement, pourrait être envisagée et servir de modèle à d'autres systèmes insulaires tropicaux

Airport noise: its impact and alleviation.

Massachusetts Institute of Technology. Dept. of Urban Studies and Planning. Thesis. 1972. Ph.D.Vita.Bibliography: leaves 248-253.Ph.D

An Infinite Dimensional Approach to the Third Fundamental Theorem of Lie

We revisit the third fundamental theorem of Lie (Lie III) for finite dimensional Lie algebras in the context of infinite dimensional matrices