1,163 research outputs found
Climate-Induced Changes in Spring Snowmelt Impact Ecosystem Metabolism and Carbon Fluxes in an Alpine Stream Network
No full textAlthough stream ecosystems are recognized as an important component of the global carbon cycle, the impacts of climate-induced hydrological extremes on carbon fluxes in stream networks remain unclear. Using continuous measurements of ecosystem metabolism, we report on the effects of changes in snowmelt hydrology during the anomalously warm winter 2013/2014 on gross primary production (GPP), ecosystem respiration (ER), and net ecosystem production (NEP) in an Alpine stream network. We estimated ecosystem metabolism across 12 study reaches of the 254 km2 subalpine Ybbs River Network (YRN), Austria, for 18 months. During spring snowmelt, GPP peaked in 10 of our 12 study reaches, which appeared to be driven by PAR and catchment area. In contrast, the winter precipitation shift from snow to rain following the low-snow winter in 2013/2014 increased spring ER in upper elevation catchments, causing spring NEP to shift from autotrophy to heterotrophy. Our findings suggest that the YRN transitioned from a transient sink to a source of carbon dioxide (CO2) in spring as snowmelt hydrology differed following the high-snow versus low-snow winter. This shift toward increased heterotrophy during spring snowmelt following a warm winter has potential consequences for annual ecosystem metabolism, as spring GPP contributed on average 33% to annual GPP fluxes compared to spring ER, which averaged 21% of annual ER fluxes. We propose that Alpine headwaters will emit more within-stream respiratory CO2 to the atmosphere while providing less autochthonous organic energy to downstream ecosystems as the climate gets warmer
21st-century scholarship and Wikipedia
No full textWikipedia, the world’s fifth most-used Web site, is a good illustration of the growing credibility of online resources. In his article in Ariadne earlier this year, “Wikipedia: Reflections on Use and Academic Acceptance”, Brian Whalley described the debates around accuracy and review, in the context of geology. He concluded that ‘If Wikipedia is the first port of call, as it already seems to be, for information requirement traffic, then there is a commitment to build on Open Educational Resources (OERs) of various kinds and improve their quality.’ In a similar approach to the Geological Society event that Whalley describes, Sarah Fahmy of JISC worked with Wikimedia and the British Library on a World War One (WWI) Editathon. There is a rich discourse about the way that academics relate to Wikipedia
Dawn, Amber
No full textcurrentMFA, BA (UBC)
Amber Dawn is the author of four books and the editor of three anthologies. Her debut novel Sub Rosa (2010) won the Lambda Literary Award for Debut Lesbian Fiction and the Writers’ Trust of Canada Dayne Ogilvie Prize. Her memoir How Poetry Saved My Life: A Hustler’s Memoir (2013) won the Vancouver Book Award. Her poetry collection Where the words end and my body begins (2015) was a finalist for BC Book Award’s Dorothy Livesay Poetry Prize. Her sophomore novel Sodom Road Exit (2018) was nominated for the Lambda Literary Award for Lesbian Fiction and the Ethel Wilson Fiction Prize
Family History of Amber Ball
No full textAmber Renee Ball authored this family history as part of the course requirements for HIST 550/700 Your Family in History offered online in Spring 2020 and was submitted to the Pittsburg State University Digital Commons. Please contact the author directly with any questions or comments: [email protected]
My art is killing me, and other poems
No full textShort-listed, Jim Deva Prize for Writing that Provokes (BC and Yukon Book Prizes) 2021.In her novels, poetry, and prose, Amber Dawn has written eloquently on queer femme sexuality, individual and systemic trauma, and sex work justice, themes drawn from her own lived experience and revealed most notably in her award-winning memoir "How Poetry Saved My Life". In this, her second poetry collection, Amber Dawn takes stock of the costs of coming out on the page in a heartrendingly honest and intimate investigation of the toll that artmaking takes on artists. These long poems offer difficult truths within their intricate narratives that are alternately incendiary, tender, and rapturous. In a cultural era when intersectional and marginalized writers are topping bestseller lists, Amber Dawn invites her readers to take an unflinching look at what we expect from writers, and from each other. Includes a foreword by writer Doretta Lau. --From publisher description.poetrywomen's literatureLGBTQ+lesbian literatur
ozbayb/amber: AMBER v1.0 release for multiphoton fiber bundle imaging
No full textAMBER V1.0
<p><strong>Artefactual Multiphoton Bundle Effect Removal</strong></p>
Description
<p>This release is a collection of functions and an example of a main program that is intended for the use of removing an artifact caused by performing multiphoton imaging through a coherent imaging fiber bundle. Some of the code may need to be modified to be compatible with specific file types for the image stacks. Also required is a "Flat" image, which is a multiphoton image of a flat fluorescent sample through the fiber-bundle acquired under the same conditions as the actual image data stacks to be fixed. The individual image stacks may be time series or Z-stacks and may be a field-of-view smaller than the full surface of the fiber-bundle. A simple rigid registration code allows the centroid locations identified in the flat image to be registered onto the image data.</p>
List of functions:
<ul>
<li>centerPadCrop: Performs a simple central crop</li>
<li>filterValSeries: Temporal/axial filter on each core independently</li>
<li>getCentroidValues: Extracts the values of the cores at the identified centroids</li>
<li>getCorrectorValues: Acquires the correction factors for each core from the flat image</li>
<li>getFiberCentroids: Finds the centroid pixel coordinates for each fiber core</li>
<li>getParameter: Extract specific data from a *.txt file containing imaging metadata</li>
<li>gridFiberCores: Interpolates the core centroids into a uniform pixel grid</li>
<li>makeFiberImage: Uses the centroid locations and values to recreate the fiber images</li>
<li>rigidAlignFiber: Performs a rigid registration of the flat fiber centroids to the actual image field</li>
<li>writeFiberImages: Writes the processed image files to *.tif with metadata (using Bioformats toolbox)</li>
</ul>
<p>Author: Baris N. Ozbay, University of Colorado Denver, Department of Bioengineering</p>
Traditional Amber jewellery and traditional Latvian plaid long skirt
No full textTwo women wearing Amber jewellery and a traditional Latvian plaid long skirt14.1.2 Use of Amber in modern Alberta Latvian cultural celebrations, 1.1.2 Yearly celebrations of Imant
How poetry saved my life: A hustler's memoir
No full textA memoir about sex work and sexuality, and how writing became the author's lifeline. Amber Dawn's acclaimed first novel Sub Rosa, a darkly intoxicating fantasy about a group of magical prostitutes who band together to fend off bad johns in a fantastical underworld, won a Lambda Literary Award in 2011. How Poetry Saved My Life, Amber Dawn's sophomore book, reveals an even more poignant and personal landscape--the terrain of sex work, queer identity, and survivor pride. This story, told in prose and poetry, offers a frank, multifaceted portrait of the author's experiences hustling the streets of Vancouver, and how those years took away her self-esteem and nearly destroyed her; at the crux of this autobiographical narrative is the tender celebration of poetry and literature, which--as the title suggests--acted as a lifeline during her most pivotal moments.
As raw and fiery as its author, How Poetry Saved My Life is a powerful account of survival and the transformative power of literature. --From publisher description.Women's literatureBiography & MemoirLGBTQ+Lesbian literatur
How effective and protective are AIS Removal Methods?
No full textPlease see readme file uploaded for more detail.
A. Filename:ANGLINGBOAT_DATASET.csv
Short description: Dataset showing the proportions of each material type recovered in each replicate by each cleaning method for the angling boat tests.
B. Filename: WATERFOWLER_DATASET.csv
Short description: Dataset showing the proportions of each material type recovered in each replicate by each cleaning method for the Waterfowler boat tests.
C. Filename:LIVEWELL_DATASET.csv
Short description: Dataset showing the proportions of each material type recovered in each replicate by each cleaning method for the livewell tests.
D. Filename:WADERS_DECOYS_DATASET.csv
Short description: Dataset showing the proportions of each material type recovered in each replicate by each cleaning method for the waders and decoys tests.Cleaning boats after recreating in lakes is important because boats can transfer aquatic invasive species (AIS) between waterbodies. Fully drying boats is the recommended method to prevent AIS spread, but is not always possible before it's launched into a different waterbody. Self-service tools may be provided at launches to encourage boat cleaning and AIS removal. The tools available vary and may include waterless tools (e.g., vacuum, cloth wipe, compressed air) as well as low-pressure water for rinses. Most studies have focused on boat exteriors and trailers, not boat interiors. We tested the effectiveness of 4 cleaning methods on the interior of a boat fouled to simulate a) typical angling boat and livewell use, and b) waterfowler use including duck decoys and waders. For each simulation, we repeatedly fouled the same boat with an exact count of dead and surrogate AIS to test: 1) hand removal; 2) waterless tools; 3) low-pressure water rinse; and 4) a combination of all methods. We conducted 10 replicates for each cleaning test for each simulation. The effectiveness of the methods depended on the type of AIS (e.g., spiny water fleas versus plant matter), and on the type of boat fouling. All methods in combination or the vacuum alone removed the highest proportion of AIS from both the waterfowler and angling boats. Using additional tools (e.g., wipe, vacuum, or low-pressure rinse) increased the removal of AIS from livewells over hand removal alone. In particular, compressed air removed materials stuck in the livewell drain tubing. Hand removal was the least effective method for cleaning duck decoys and waders. These results provide guidance to state agencies, managers, and cleaning station manufacturers on the best cleaning tools to provide at boat launches to more thoroughly clean boat interiors and gear.Environment and Natural Resources Trust Fund (ENRTF): Project no. ENRTF_ID_167-DH. Funding recommended by Legislative-Citizen Commission on Minnesota Resources (LCCMR)Brady, Valerie; Wellard Kelly, Holly; Ulseth, Amber. (2025). How effective and protective are AIS Removal Methods?. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/EXMP-MB73
Where the words end and my body begins
No full textAward-winning writer Amber Dawn reveals a gutsy lyrical sensibility in her debut poetry collection: a suite of glosa poems written as an homage to and an interaction with queer poets, such as the legendary Gertrude Stein, Christina Rossetti, and Adrienne Rich, as well as contemporaries like Leah Horlick, Rachel Rose, and Trish Salah. (Glosas, a 15th-century Spanish form, typically open with a quatrain from an existing poem by another writer, followed by four stanzas of ten lines each, and usually end with a line repeated from the opening quatrain.)
By doing so, Amber Dawn delves deeper into the themes of trauma, memory, and unblushing sexuality that define her work. --From publisher description.poetry bookPoetryLGBTQ+Lesbian literatureWomen's literatur
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