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Renewables 2010: Global Status Report (open access)

Renewables 2010: Global Status Report

This report describes economic trends in building the capacity of renewable energy in several countries.
Date: 2010
Creator: Renewable Energy Policy Network for the 21st Century
Object Type: Text
System: The UNT Digital Library
Effects of Macrophyte Functional Diversity on Taxonomic and Functional Diversity and Stability of Tropical Floodplain Fish Assemblages (open access)

Effects of Macrophyte Functional Diversity on Taxonomic and Functional Diversity and Stability of Tropical Floodplain Fish Assemblages

Multiple dimensions of biodiversity within and across producer and consumer guilds in the food web affect an ecosystem’s functionality and stability. Tropical and subtropical aquatic ecosystems, which are extremely diverse, have received much less attention than terrestrial ecosystems in regards to the effects of biodiversity on ecosystem functioning. We conducted a field experiment that tested for effects of macrophyte functional diversity on diversity and stability of associated fish assemblages in floodplain lakes of the Upper Paraná River floodplain, Brazil. Three levels of macrophyte functional diversity were maintained through time in five floodplain lakes and response variables included various components of fish taxonomic and functional diversity and stability. Components of functional diversity of fish assemblages were quantified using a suite of ecomorphological traits that relate to foraging and habitat use. Response variables primarily distinguished macrophyte treatments from the control. Macrophyte treatments had, on average, double the number of species and total abundance than the control treatment, but only limited effects on stability. The high diversity treatment was essentially nested within the low diversity for assemblage structure and had similar or even slightly lower levels of species richness and abundance in most cases. Gymnotiformes and young-of-year were diverse and relatively abundant in …
Date: August 2015
Creator: Treviño, Jessica Marie
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Global Trends in Sustainable Energy Investment 2010: Analysis of Trends and Issues in the Finacning (open access)

Global Trends in Sustainable Energy Investment 2010: Analysis of Trends and Issues in the Finacning

This report shows that in spite of the global economic downturn, investment in sustainable energy is still strong.
Date: 2010
Creator: United Nations Environment Programme
Object Type: Text
System: The UNT Digital Library
A National Idiom Universally Understood: Brazilian Tradition and Personal Evolution in Osvaldo Lacerda's "Variações e Fuga para quinteto de sopros" (open access)

A National Idiom Universally Understood: Brazilian Tradition and Personal Evolution in Osvaldo Lacerda's "Variações e Fuga para quinteto de sopros"

The career of Osvaldo Lacerda (1927-2011) spanned a critical time in the development of Brazilian nationalist music. Though he was an outspoken nationalist composer, he was also influenced by European trends and training. Even within his nationalist compositions, evidence of a shift in style that mirrors the European movements of Modernism and Postmodernism is found in his works. Among his thirty-six chamber works, three are wind quintets, written between 1962 and 1997. Although all three works warrant extended discussion, Variações e Fuga para quinteto de sopros is particularly valuable for studying Lacerda's musical language. It was originally written in 1962. However, Lacerda made significant revisions in 1994, completely rewriting and expanding it. Through comparing the 1962 and 1994 versions of Variações e Fuga and analyzing the significant differences between the two, this document aims show that even with his strong stance as a Brazilian nationalist composer, Lacerda was clearly influenced by the movements of the broader music world. Examples from his other two woodwind quintets, Quinteto de sopro and Suíte pra cinco, written in 1988 and 1997 respectively, help to support the idea that this change in his musical language was not an anomaly, but rather a true evolution of …
Date: August 2018
Creator: Leffler, Hannah
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Thresholds and Legacy Effects of Tropical Floodplain Fish Assemblages in Response to Flood Attributes (open access)

Thresholds and Legacy Effects of Tropical Floodplain Fish Assemblages in Response to Flood Attributes

Natural flow regimes are critical for sustaining biodiversity and river integrity. Floods and droughts form an important component of river systems and control population sizes and species diversity across space and time. Modification of flow regimes, including disruption of the timing, magnitude and duration of flooding, is a global problem, and many new impoundments are planned for large river-floodplain ecosystems in the tropics. Flow modifications may cause dramatic non-linear responses in population sizes and have lasting effects through time, but such topics are poorly investigated over multi-year scales, especially in highly diverse tropical ecosystems. Using a long-term dataset from the Upper Paraná River floodplain, Brazil, I tested for threshold and legacy effects of fish assemblages to flood attributes, such as timing, magnitude, duration, rate of change and variation. Specifically, I hypothesized that long duration, high magnitude floods would elicit threshold responses in long-distance migratory fish species and these responses result in significant legacy effects detectable over multiple years. Consistent positive threshold responses to increasing flood duration and magnitude were detected for many species and not significantly correlated with reproductive guilds. Legacy effects were prevalent (i.e. identified for more than 90% of species) and including flood attributes from previous years increased …
Date: December 2015
Creator: Hoeinghaus, Ana Paula Ferrari
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Rediscovery of the Elements

Interactive DVD documenting the research by Dr. James and Virginia Marshall to trace the history of the elements in the periodic table. It includes biographical information on the scientists who discovered each of the elements, notes about each of the elements with photos, periodic tables, maps and photographs of the cities where elements were discovered, a timeline of discoveries, written articles about the research, and other background documentation.
Date: July 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Website
System: The UNT Digital Library
The Brazilian Art Song and the Non-Brazilian Portuguese Singer: A Performance Guide to Nine Songs by Alberto Nepomuceno (open access)

The Brazilian Art Song and the Non-Brazilian Portuguese Singer: A Performance Guide to Nine Songs by Alberto Nepomuceno

Alberto Nepomuceno (1864-1920) is considered to be the father of the Brazilian art song. With a total of seventy songs, Nepomuceno revolutionized and established a new path to the Brazilian art song. His songs were innovative because they: (1) incorporated folk elements in his songs, (2) introduced Portuguese as a language acceptable in bel canto style and (3) established Brazilian songs in the tradition of the European vanguard. His approach influenced several composers including his young student Heitor Villa-Lobos (1887-1959), one of the most significant Latin American composers. The purpose of this research is to inform singers and teachers about one of Brazil's most significant art song composers, and to provide the necessary tools--Brazilian Portuguese diction guide, IPA and poem translations of the selected songs--for effective and accurate performances and interpretations.
Date: May 2019
Creator: Riggs, Rawlianne
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Extended Abstract: Compassionate Care and Feedings of Spritually Transformative Experiences in Brazil: A 130-Year-Old Tradition

Brief paper discussing the origin and workings of Spiritist Centers and Spiritist Psychiatric Hospitals in Brazil.
Date: Spring 2014
Creator: Bragdon, Emma
Object Type: Article
System: The UNT Digital Library
Elizabeth Bishop in Brasil: An Ongoing Acculturation (open access)

Elizabeth Bishop in Brasil: An Ongoing Acculturation

Elizabeth Bishop (1911–1979), one of the foremost modern American poets, lived in Brasil during seventeen-odd years beginning in 1951. During this time she composed the poetry collection Questions of Travel, stand-alone poems, and fragments as well as prose pieces and translations. This study builds on the work of critics such as Brett Millier and Lorrie Goldensohn who have covered Bishop’s poetry during her Brasil years. However, most American critics have lacked expertise in both Brasilian culture and the Portuguese language that influenced Bishop’s poetry. Since 2000, in contrast, Brasilian critic Paulo Henriques Britto has explored issues of translating Bishop’s poetry into Portuguese, while Maria Lúcia Martins and Regina Przybycien have examined Bishop’s Brasil poems from a Brasilian perspective. However, American and Brasilian scholars have yet to recognize Bishop’s journey of acculturation as displayed through her poetry chronologically or the importance of her belated reception by Brasilian literary and popular culture. This study argues that Bishop’s Brasil poetry reveals her gradual transformation from a tourist outsider to a cultural insider through her encounters with Brasilian history, culture, language, and politics. It encompasses Bishop’s published and unpublished Brasil poetry, including drafts from the Elizabeth Bishop Papers at Vassar College. On a secondary …
Date: August 2014
Creator: Neely, Elizabeth
Object Type: Thesis or Dissertation
System: The UNT Digital Library
imagineRio: A Diachronic Atlas of the Social and Architectural Evolution of Rio de Janeiro captions transcript

imagineRio: A Diachronic Atlas of the Social and Architectural Evolution of Rio de Janeiro

Presentation for the 2016 Digital Frontiers Annual Conference. In this presentation, Farès el-Dahdah and Alida C. Metcalf discuss imagineRio, a searchable atlas platform that illustrates the social and urban evolution of Rio de Janeiro over the entire history of the city, as it existed and as it was often imagined.
Date: September 22, 2016
Creator: el-Dahdah, Farès & Metcalf, Alida C.
Object Type: Video
System: The UNT Digital Library
Our Planet, February 2010 (open access)

Our Planet, February 2010

Magazine of the United Nations Environment Programme discussing worldwide environmental policies and other concerns. This issue is devoted to programs in several countries that are investing in a "green economy" in order to ensure the efficient and sustainable use of natural resources.
Date: February 2010
Creator: United Nations Environment Programme
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library