2,631 research outputs found
A narrative-based collaborative writing tool for coherent technical documents
No full textOne important feature of an effective document that makes it easy to read and understand is known as coherence. Technical documents produced collaboratively are often incoherent due to a lack of group consensus and misaligned contributions by the individual authors. However, current document planning techniques and writing tools do not provide explicit support for improving coherence. The goal of this research, therefore, is to develop and evaluate a new technique and tool that helps teams of authors to structure coherent technical documents. The coherence of a document can be attributed to the story (or narrative) it conveys to the reader. If this story is consistent and coherent, the same can be said about the document. A discourse theory such as Rhetorical Structure Theory (RST) that has been developed by linguists helps further to analyse and improve a narrative. RST explains the coherence of a text by virtue of relationships (such as “paragraph A justifies paragraph B”) between parts of the text. This research has combined the ideas from these parallel strands of research to develop a new document planning technique called narrative-based writing. The method involves writing down an explicit précis of the story (called a document narrative or DN) and then analysing it using RST. The DN and RST analysis are then used to structure the eventual document. To extend the usability of narrative-based writing to geographically-dispersed authors, I have designed and implemented a collaborative tool that allows co-authors to edit, analyse and review DNs. The thorough design for the tool uses a combination of three models (conceptual, business process and functional) culminating in a set of functions that enable collaborative narrative-based writing. This dissertation discusses how, in the future, these functions could be incorporated in existing collaborative writing tools. Implementing this tool, albeit in its current prototypic state, has been invaluable in understanding the complexities of modelling and manipulating DNs and RST structures. Initial investigations using the new technique and tool have been positive, encouraging me to continue the research and evaluation in this field
Evaluatie suppleties Noord-Holland en Texel
No full textNote: NH-93.ANV002a.pdf bevat het hoofdrapport en NH-93.ANV002b.pdf bevat alle bijlagen. ----- De minister van Verkeer en Waterstaat heeft de kamer een interim-nota kustverdediging in 1993 toegezegd, waarin het kustverdedigingsbeleid wordt geëvalueerd. Een onderdeel van deze evaluatie is de evaluatie van de zandsuppleties. Om deze evaluatie uit te voeren is de werkgroep EVAZAND, onder leiding van de Dienst Getijdewateren, ingesteld. De evaluatie beperkt zich in principe tot de morfologische aspecten en is hoofdzakelijk gericht op het bepalen van de doelmatigheid of de effectiviteit van zandsuppleties. Omdat suppleties van 1990 of later zich vanwege de korte levensduur nauwelijks lenen voor evaluatie is een selectie gemaakt uit de suppleties van vóór 1990. Deze nota dient als de bijdrage van de Directie Noord-Holland aan het project EVAZAND en bevat de evaluatie van alle grote zandsuppleties van Noord-Holland en Texel van vóór 1990.EVAZAN
Seasonal Movement and Habitat Use of Eastern Brook Trout, Salvelinus fontinalis, in a Mountain Stream in Northern NH
No full textWe conducted a study of brook trout, Salvelinus fontinalis, movement and habitat use in an unnamed tributary (hereafter referred to as Emerson Brook)in the Nash Stream watershed, Coos County, NH in 2010.We measured movement and dispersal in this small, fragmented mountain stream population of brook trout using Passive Integrated Transponder (PIT) tags to track movement from May to November. Emerson Brook is a small, mountain stream that flows into Nash stream on its western side that is divided into three discrete reaches by two waterfalls. We hypothesized that the geomorphology of these two waterfalls would prevent any upstream movement between reaches, therefore decreasing genetic mixing. Through instream monitoring of fish, we discovered that the upper waterfall was impassable to PIT-tagged brook trout and the lower waterfall was navigated by five PIT-tagged fish that moved upstream through the water fall in 2010. These findings were corroborated by genetic analysis based on microsatellite-based markers showing that little introgression occurred across these geomorphological features.
We collected data over the course of the 2010 season to address the following objectives: 1) to describe habitat and instream wood use by brook trout, 2) to quantify brook trout movement, and 3) to determine the relationship between fish movement and habitat use. Brook trout in Emerson Brook (on average 107 mm in total length) moved continually throughout the season with an average total movement of 98 m over the course of the season in 2010. Habitat use by brook trout in Emerson Brook was similar to that reported for other salmonids in that they were keying into pools and habitat with instream wood nearby. Juvenile brook trout preferred pool habitat (Pearson Chi-Square = 21.836, df = 2, p \u3c 0.001) and habitat with wood jams close by (Pearson Chi-Square = 10.880 df = 3, p \u3c 0.001). Adults also preferred pools with both logs and wood jams (compared to pools without wood) and riffles without wood (Pearson Chi-Square = 121.406, df = 4, p \u3c 0.001). We found positive significant relationships between movement and fish total length (df = 134, R2= 0.148, p \u3c 0.001) and movement of fish and age (df = 13, R2= 0.316, p = 0.036). Fish in the upper reaches of Emerson Brook moved significantly less than those by its confluence with Nash Stream (df = 112, R2= 0.037, p = 0.042). Also, brook trout in Emerson Brook moved more to access pool habitat than riffle habitat (Paired T-test, T = 4.22, p \u3c 0.001). The findings of this study support that brook trout in small, mountain streams need habitat diversity and specifically prefer pool habitat and instream wood.
Mountain streams that have fragmented subpopulations, as seems likely for Emerson Brook, should be carefully considered in watershed-wide management. Tributaries like Emerson Brook provide cold water input into Nash Stream, constitute a refuge for mainstem brook trout when temperatures increase, and offer an opportunity for genetic mixing when mainstem brook trout enter the lower, easily accessible reaches of the tributary to spawn
Sherry et al Hubbard Brook temperature data
No full textText file for period 1983-1995, and for months of May and June, of daily average temperatures (deg C) for Stations 1 and 6 in Hubbard Brook Experimental Forest, NH, USA. Data used to construct annual covariates for temperatures in analyses of American redstart nesting success
Seasonal movement and habitat use of eastern brook trout, Salvelinus fontinalis, in a mountain stream in northern NH
No full textWe conducted a study of brook trout, Salvelinus fontinalis, movement and habitat use in an unnamed tributary (hereafter referred to as Emerson Brook)in the Nash Stream watershed, Coos County, NH in 2010.We measured movement and dispersal in this small, fragmented mountain stream population of brook trout using Passive Integrated Transponder (PIT) tags to track movement from May to November. Emerson Brook is a small, mountain stream that flows into Nash stream on its western side that is divided into three discrete reaches by two waterfalls. We hypothesized that the geomorphology of these two waterfalls would prevent any upstream movement between reaches, therefore decreasing genetic mixing. Through instream monitoring of fish, we discovered that the upper waterfall was impassable to PIT-tagged brook trout and the lower waterfall was navigated by five PIT-tagged fish that moved upstream through the water fall in 2010. These findings were corroborated by genetic analysis based on microsatellite-based markers showing that little introgression occurred across these geomorphological features.
We collected data over the course of the 2010 season to address the following objectives: 1) to describe habitat and instream wood use by brook trout, 2) to quantify brook trout movement, and 3) to determine the relationship between fish movement and habitat use. Brook trout in Emerson Brook (on average 107 mm in total length) moved continually throughout the season with an average total movement of 98 m over the course of the season in 2010. Habitat use by brook trout in Emerson Brook was similar to that reported for other salmonids in that they were keying into pools and habitat with instream wood nearby. Juvenile brook trout preferred pool habitat (Pearson Chi-Square = 21.836, df = 2, p < 0.001) and habitat with wood jams close by (Pearson Chi-Square = 10.880 df = 3, p < 0.001). Adults also preferred pools with both logs and wood jams (compared to pools without wood) and riffles without wood (Pearson Chi-Square = 121.406, df = 4, p < 0.001). We found positive significant relationships between movement and fish total length (df = 134, R2= 0.148, p < 0.001) and movement of fish and age (df = 13, R2= 0.316, p = 0.036). Fish in the upper reaches of Emerson Brook moved significantly less than those by its confluence with Nash Stream (df = 112, R2= 0.037, p = 0.042). Also, brook trout in Emerson Brook moved more to access pool habitat than riffle habitat (Paired T-test, T = 4.22, p < 0.001). The findings of this study support that brook trout in small, mountain streams need habitat diversity and specifically prefer pool habitat and instream wood.
Mountain streams that have fragmented subpopulations, as seems likely for Emerson Brook, should be carefully considered in watershed-wide management. Tributaries like Emerson Brook provide cold water input into Nash Stream, constitute a refuge for mainstem brook trout when temperatures increase, and offer an opportunity for genetic mixing when mainstem brook trout enter the lower, easily accessible reaches of the tributary to spawn.Electronic Thesis or Dissertatio
Sherry et al Hubbard Brook precipitation data
No full textText file for period 1983-1995, and for months of May and June, of daily average rainfall for Watersheds 5 and 6 in Hubbard Brook Experimental Forest, NH, USA. Data used to construct annual covariates for precipitation in analyses of American redstart nesting success
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Session C4 - If You Remove It, They Will Come...The Maxwell Pond Dam Removal / Black Brook Restoration Success Story
No full textSteve holds a B.S. in environmental science and aquatic toxicology from the University of Massachusetts Amherst. Steve manages federally funded Watershed Assistance and Restoration Grants for high quality and impaired waters within the Merrimack River Watershed. Steve is also project manager on several fluvial geomorphology-based projects throughout New Hampshire. Most recently, he coordinated the removal of the Maxwell Pond Dam and restoration of Black Brook in Manchester, NH. He serves as vice chair of the Upper Merrimack River Local Advisory Committee and sampling supervisor of the Upper Merrimack Monitoring Program.A century-old dam across Black Brook created an impoundment called Maxwell Pond, which was a site for ice harvesting, fishing, swimming and other recreation. Over time, sediment from poorly managed industrial sites accumulated in the pond, which became stagnant and shallow. As a result, the NH Dept. of Environmental Services (DES) added Maxwell Pond to the 2002 Clean Water Act (CWA) section 303(d) list of impaired waters. Stakeholders collaborated for seven years to restore water quality by reducing upstream sediment sources and removal of the dam in 2009. Once Black Brook returned to its free-flowing condition, the dissolved oxygen level rebounded and the brook could once again support its aquatic life designated use. As a result of the improvements, in 2010 DES removed the former Maxwell Pond portion of Black Brook from the state's CWA section 303(d) list of impaired waters for dissolved oxygen. Funds for this $685,000 restoration project were derived from a diverse portfolio of stakeholders that included the City of Manchester, EPA, DES, NH Fish & Game, NH State Conservation Committee, NH Corporate Wetlands Restoration Partnership, American Rivers/NOAA, Gulf of Maine Council/NOAA, Fairpoint Communications, National Grid, Aggregate Industries, Amoskeag Fishways, Dubois & King, Inc., and Trout Unlimited. Thanks to the incredible collaboration and innovative funding strategies employed to restore Black Brook, this project was accepted as a Section 319 Nonpoint Source Program Success Story by the EPA in 2011. In addition to the local community accolades for flood relief, elimination of a public safety hazard, and the state and federal acknowledgement of successful restoration of impaired surface waters in NH, the Black Brook Restoration Project also garnered national attention in 2010. American Rivers selected this project as one of three in the United States to be featured in their Restoring America's Rivers: Preparing for the Future DVD that focused upon flooding, community decision makers, and restoration of vital habitats for fish and wildlife. This presentation will provide attendees with an overview of the dam removal process on Black Brook, the project management and funding collaborations that lead to success, data gathered pre and post-dam removal that demonstrate the return of state and federally listed fish species (Bridle shiners, Sea lamprey, American eel, Tesselated darters, Atlantic salmon) to Black Brook, and geomorphic indicators that demonstrate ongoing channel evolution and a return to the reference condition within the former impoundment
Dehydrogenation of the NH−NH Bond Triggered by Potassium tert-Butoxide in Liquid Ammonia
No full textA novel strategy for the dehydrogenation of NH-NH bond is disclosed using potassium t-butoxide (tBuOK) in liquid NH3 under air (O2) at room temperature. Its synthetic values are well demonstrated via highly efficient synthesis of aromatic azo compounds (up to 100% yield, 3 min), heterocyclic azo compounds, and dehydrazination of phenylhydrazine. The broad application of this strategy and its benefit to chemical biology is proved by a novel, convenient, one-pot and efficient synthesis of aliphatic diazirines, which are important photoreactive agents for photoaffinity labeling
Restoring flow in the Beebe River: implications for eastern brook trout
No full textWild populations of Eastern Brook trout (Salvelinus fontinalis) have been declining across their historic range. The Beebe River watershed (Campton and Sandwich, NH) possesses an intact, robust population of wild Brook trout. Recent private acquisition of the Beebe River uplands (5,435 acres) by The Conservation Fund includes the creation of a sustainable management plan focusing on preserving this unique population. During 2016, Plymouth State University and NH Fish and Game Department collected demographic, genetic, and movement data to understand the impacts of habitat degradation and fragmentation caused by impassible, human-made barriers. In 2017, five undersized road crossings over headwater tributaries draining into the Beebe River will be replaced with bridges. Monitoring will continue during (2017) and after (2018) culvert replacement to measure the impacts of increased connectivity. We predict that culvert removal will increase fish movement between and within tributaries, providing enhanced access to thermal refuge and spawning habitat, ultimately resulting in increased genetic variation and a decrease in negative impacts of inbreeding as a result of isolation. This project is a unique opportunity to document and track restored habitat connectivity on the genetic structure, demographics, and movement patterns of a wild Brook trout population in northern New England.Student Showcase of Excellence 201
Restoring Flow in the Beebe River: Implications for Eastern Brook Trout
No full textWild populations of Eastern Brook trout (Salvelinus fontinalis) have been declining across their historic range. The Beebe River watershed (Campton and Sandwich, NH) possesses an intact, robust population of wild Brook trout. Recent private acquisition of the Beebe River uplands (5,435 acres) by The Conservation Fund includes the creation of a sustainable management plan focusing on preserving this unique population. During 2016, Plymouth State University and NH Fish and Game Department collected demographic, genetic, and movement data to understand the impacts of habitat degradation and fragmentation caused by impassible, human-made barriers. In 2017, five undersized road crossings over headwater tributaries draining into the Beebe River will be replaced with bridges. Monitoring will continue during (2017) and after (2018) culvert replacement to measure the impacts of increased connectivity. We predict that culvert removal will increase fish movement between and within tributaries, providing enhanced access to thermal refuge and spawning habitat, ultimately resulting in increased genetic variation and a decrease in negative impacts of inbreeding as a result of isolation. This project is a unique opportunity to document and track restored habitat connectivity on the genetic structure, demographics, and movement patterns of a wild Brook trout population in northern New England
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