9,164 research outputs found
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
An assessment of measurements and modeling of turbulent fluxes over snow by eddy covariance at two complex mountain sites /by Michele L. Reba.
No full textSnow is a major component of the annual water balance in many locations across the globe, including the mountainous regions of the interior western U.S. and Canada. As water is scarce and over-allocated in many parts of this region, it is of the utmost importance to accurately model the amount and timing of spring runoff. Most components of snow cover energy and mass balance models are validated through direct measurements such as snow water equivalent, density, temperature, and net radiation. However, validation data for turbulent fluxes are generally limited. Eddy covariance (EC) is the most direct method to measure turbulent fluxes. Findings from this research are based on EC and meteorological measurements from two mountain sites, a wind-exposed and a sheltered sub-canopy, during the 2004, 2005, and 2006 snow seasons.;EC systems have been used successfully over snow in mountain regions but detailed analysis of post-processing and data quality is lacking. The first component of this research focuses on the viability of EC technology over snow in mountainous terrain and makes a detailed analysis of data quality and the influence post-processing has on turbulent fluxes. Post-processing and data quality analysis of these data indicate that application of EC-technology at these sites was viable and data quality parameters were comparable to other reported eddy flux research.;As detailed analysis of site characteristics on EC measurements over snow is limited, this research then generalizes findings at two contrasting sites and highlights the challenges of measuring EC over snow. The exposed site yielded measured sensible and latent heat fluxes that were respectively five and two times the magnitude of those at the sheltered site. There was less inter-annual variability in EC-measured turbulent fluxes at the sheltered compared to the exposed site. Differences between sites are explored at seasonal, monthly and event based temporal scales. These findings highlight the importance of careful review of over-snow EC-measured fluxes and the meteorological conditions during which those measurements were conducted.;Improved modeling of the snow cover that is based on physical processes instead of on empirical relationships between climate and snowcover dynamics should better predict responses to climatic variability and trends. Measured turbulent fluxes are used to determine key model parameters and update the stability functions of an existing snow cover and energy balance model to improve simulated latent heat flux while retaining accuracy in simulating snow water equivalent. The adjustable parameters of roughness length and active layer depth influenced the accuracy with which the model simulated mass and latent heat flux. At the exposed site shorter roughness lengths and a thicker active layer was optimal, while longer roughness lengths and a thinner active layer was optimal at the sheltered site. These outcomes are related to the site characteristics and can be readily incorporated into a distributed snowmelt model.Thesis (Ph. D., Civil Engineering)--University of Idaho, December 2008
Measuring and modeling hydrologic responses to timber harvest in a continental/maritime mountainous environment /by Jason A. Hubbert.
No full textThe inland Pacific Northwest of the United States is influenced by both maritime and continental climates. There are limited studies of hydrologic impacts resulting from contemporary timber harvest in this region. Streamflow data were collected since 1991 at the Mica Creek Experimental Watershed (MCEW) located in northern Idaho. Treatments isolated the effects of road construction and harvest practices. Water yield increased more than 270 and 140 mm/yr (p <0.01) following clearcut and 50% partial cut harvesting respectively. Evapotranspiration was reduced by 35% and 14% following clearcut and partial cut harvest, respectively, and monthly and seasonal analyses revealed the largest impacts of harvest practices on water yield during the snow deposition and melt season from November through June. Microclimate and snowpack dynamics were profoundly affected by canopy removal. Peak snow water equivalent (SWE) was approximately 57, 30, 17, and 34 cm in the clearcuts, partial cuts, undisturbed full and valley bottom forest, respectively. Daily melt was 1.1, 0.67, 0.94. and 0.50 cm/day in the clearcuts, partial cuts, undisturbed full and valley bottom forest, respectively. Estimates of snow interception losses were approximately 43, 60. and 32% of annual snow deposition in the partial cut, undisturbed full forest, and valley bottom sites respectively.;Driving the Water Erosion Prediction Project (WEPP) snowmelt processes with custom climates and adjusted canopy cover indices yielded the closest observed versus modeled relationships between snow accumulation, peak SWE, melt rate, and snow pack depletion date. Peak SWE and total days to depletion was underestimated by approximately 1, 34, and 40% and 11, 15, and 45 days in the clearcut, partial cut, and full forest respectively. Average snowmelt per day was overestimated for the clearcut and fully forested sites by approximately 29, and 68% respectively, but was equal to observed for the partial cut site. Observed vs. modeled SWE yielded Nash-Sutcliffe (NS) values that were 0.98, 0.67 for clearcut, partial cut, and fully forested sites respectively. This work improves current understanding of the relationships between canopy removal, water yield, and snowpack dynamics in the Inland Northwest, and exemplifies the need to better understand the relationships between canopy alteration, microclimate, and snow hydrology in complex forested mountainous ecosystems.Thesis (Ph. D., Natural Resources)--University of Idaho, July 16, 2007
Numerical simulation of the effect of land cover and climate changes on hydrologic regimes in an Inland Pacific Northwest watershed /by Enhao Du.
No full textThe Distributed Hydrology Soil-Vegetation Model (DHSVM) was calibrated at the Mica Creek Experimental Watershed (MCEW) in northern Idaho, and assessed based on measured streamflows at nested watersheds, snowpack dynamics, soil moisture, and transpiration estimated from sap flux. A sensitivity analysis on the hydrologic regime as defined by annual water yield, 5 th percentile flows and half-mass date was performed for 30 biophysical parameters by an offset-response method. The model effectively simulated streamflow dynamics along with other key hydrological processes across a range of forest canopy and climate characteristics with reasonable accuracy thus indicating that the model can be used with confidence to assess the effect of land cover and climate changes on hydrologic regimes. Sensitivity test found that overstory LAI, minimum stomatal resistance, and porosity are among the most influential parameters.;Spatial and temporal patterns of canopy alterations suggest that completely clear-cutting the entire watershed would increase runoff by 73% and 5 th percentile streamflows by 66%. The hydrologic effects were less pronounced relative to the degree of canopy removal in a partial-cut scenario where 50% of the canopy was removed across the entire watershed. Streamflow regimes approached baseline conditions after approximately 25 years of forest regeneration, and indicated almost complete recovery after 50 years. Gradually patch-cutting 5% of the watershed area every 6 years caused water yield to increase by 17% and remain very stable after 20 years. Hydrologic responses to various spatial harvest patterns were relatively similar.;Hydrologic simulations using downscaled general circulation model (GCM) data indicate that SWE in the MCEW is projected to decline by 47% to 90% in 2046 and by 55% to 95% in 2081. Annual water yield varied from 55% to 100% of the baseline case in 2046 and from 61% to 128% in 2081. Winter runoff (October-March) was elevated by 47% to 168% in 2046 and 73% to 239% in 2081. Summer streamflows were reduced to 21% to 72% for both future periods. Simulations suggest that the 50 th percentile streamflow will advance by 17 to 90 days in the mid- and late-21 st century. The study suggests that the hydrologic regime in the MCEW will shift from snow to rain dominated by the middle of the 21 st century. Canopy removal emphasizes more on annual water yield changes, whereas climate change influences more on streamflow timing.Thesis (Ph. D., Environmental Science)--University of Idaho, October 1, 2010
Money piece by Timothy P. Agnew, chief executive officer of the Finance Author
No full textMoney piece by Timothy P. Agnew, chief executive officer of the Finance Authority of Maine, about the increased availability of credit for Maine\u27s small businesses
Interview with Timothy J. Carson
No full textFor transcript, click the Download button above. For video index, click the link below.
TImothy J. Carson (W \u2770) has practiced in Philadelphia for forty years in the field of public sector law, especially public finance. He is currently a partner at Dilworth Paxson LLP. He is an elected Fellow of the American College of Bond Counsel
Are Attendance Gains Sustained? A follow - up on the educational and child welfare outcomes of students with child welfare involvement for educational neglect Minn - LInK Issue Brief No. 8
No full textMinn-LInK is a unique collaborative, university-based research environment with the express purpose of studying child and family well being in Minnesota using state administrative data from multiple agencies.This study reexamines the school attendance and child welfare involvement of a group of students for whom a report of educational neglect was received by child welfare during the 2000-2001 school year in Minnesota. The majority of these students experienced a marked improvement in their school attendance in the year following their involvement with child welfare in 2002.Larson, Anita; Zuel, Timothy; Swanson, Mira. (2009). Are Attendance Gains Sustained? A follow - up on the educational and child welfare outcomes of students with child welfare involvement for educational neglect Minn - LInK Issue Brief No. 8. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/185518
Perspectives on Plasmas
No full textDr. Timothy Eastman developed this website to address aspects of plasma science and technology for the general public and for research and education communities. In the Basics link, users can learn about plasmas and their functions in space, energy, the environment, businesses, governments, and in the home. The Applications link offers many resources about fields of plasma application and institutions involved with plasma technology. Educators can find many images illustrating fusion plasmas, space plasmas, and technology. The site provides a lengthy list of references as well as many helpful links to outside plasma-related educational and research sites
An Annotative Approach to Better Hyperauthoring and Associative Linking
No full textEarly hypertext visionaries proposed entire online archives of the world's literature, with everything associatively linked to everything else. Today, the most widespread hypertext system is the World-Wide Web (WWW), a publicly accessible and globally distributed medium. However, the WWW is not living up to the promise of hypertext associativity - the majority of hypertext linking on the WWW is estimated to be intended for navigational purposes only. WWW authors typically have new ideas to contribute, and assert particular relationships between these and existing ideas already published in order to demonstrate both the reliability of the conceptual foundation being built on, and the innovation and significance of the new ideas. However, these associations are rarely rendered as associative links which seamlessly link the new material into the global context. This research investigates the possibility of capturing these implicit inter-document associations through annotation, and then using these annotations to assist the hyperauthoring process. The hypothesis of this work is therefore that by capturing inter-document associations through annotation, a better hyperauthoring process will result, both in terms of the quality and coverage of the new writing, and in terms of the seamless (associative) integration with the global context, helping the WWW evolve to achieve all of its potential hypertextual richness. The Annotation LInking ENvironment (ALIEN) has been implemented to demonstrate techniques for capturing inter-document associations made by an author whilst reading, using free form annotations. Further work proposed includes the re-purposing of these captured associations to assist the authoring and linking processes through dynamic visualisation of the association structures "as-you-type", and automatic associative linking
Timothy Meyer serves as a contributing author for UN report
No full textAssistant Professor Timothy Meyer served as a contributing author for the United Nations Industrial Development Organization\u27s report titled Networks for Prosperity: Connecting Development Knowledge Beyond 2015. The document, which was released during November, analyzes the nexus between the global connectedness of a country and its economic success, sustainability and government effectiveness. Meyer was one of only approximately 20 academic and practical experts from around the world selected to serve as a contributor after a global call for proposals.
Learn more View the full repor
- …
