110,163 research outputs found

    Li isotopes and D(Li) in inorganic carbonates: proxy-calibration for localized and global weathering

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    Solid and solution compositions and isotopic measurements for submitted publication "Li isotopes and D(Li) in inorganic carbonates: proxy-calibration for localized and global weathering

    Real-time fluorescence lifetime imaging system with a 32 × 32 0.13?m CMOS low dark-count single-photon avalanche diode array

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    A compact real-time fluorescence lifetime imaging microscopy (FLIM) system based on an array of low dark count 0.13?m CMOS singlephoton avalanche diodes (SPADs) is demonstrated. Fast background-insensitive fluorescence lifetime determination is achieved by use of a recently proposed algorithm called ‘Integration for Extraction Method’ (IEM) [J. Opt. Soc. Am. A 25, 1190 (2008)]. Here, IEM is modified for a wider resolvability range and implemented on the FPGA of the new SPAD array imager. We experimentally demonstrate that the dynamic range and accuracy of calculated lifetimes of this new camera is suitable for widefield FLIM applications by imaging a variety of test samples, including various standard fluorophores covering a lifetime range from 1.6ns to 16ns, microfluidic mixing of fluorophore solutions, and living fungal spores of Neurospora Crassa. The calculated lifetimes are in a good agreement with literature values. Real-time fluorescence lifetime imaging is also achieved, by performing parallel 32 × 16 lifetime calculations, realizing a compact and low-cost FLIM camera and promising for bigger detector arrays.Micro ElectronicsElectrical Engineering, Mathematics and Computer Scienc

    Gold standard of UK degrees is lost in translation

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    Inflated marks, overworked staff and politically compromised courses are the price of exploiting offshore UK registered students, says Michael Day

    Retelling racialized violence, remaking white innocence: the politics of interlocking oppressions in transgender day of remembrance

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    Transgender Day of Remembrance has become a significant political event among those resisting violence against gender-variant persons. Commemorated in more than 250 locations worldwide, this day honors individuals who were killed due to anti-transgender hatred or prejudice. However, by focusing on transphobia as the definitive cause of violence, this ritual potentially obscures the ways in which hierarchies of race, class, and sexuality constitute such acts. Taking the Transgender Day of Remembrance/Remembering Our Dead project as a case study for considering the politics of memorialization, as well as tracing the narrative history of the Fred F. C. Martinez murder case in Colorado, the author argues that deracialized accounts of violence produce seemingly innocent White witnesses who can consume these spectacles of domination without confronting their own complicity in such acts. The author suggests that remembrance practices require critical rethinking if we are to confront violence in more effective ways. Description from publisher's site: http://caliber.ucpress.net/doi/abs/10.1525/srsp.2008.5.1.2

    Scholars' Day Review vol. 1 frontmatter

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    Includes journal cover, editors, editorial board, Scholars' Day Committee, copyright, "About Scholars' Day Review," and table of contents.Archived web conten

    Li-iPSC differentiation into functional Li-HLCs.

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    (A) Schematic illustration of the HLC differentiation procedure together with representative brightfield images taken at day 0, 5, 10 (scale bars = 250 μm) and 16 (scale bar 50 μm) during Li-HLC differentiation. (B) Li-HLCs at the end of differentiation protocol (day 16) co-stained positive for the hepatocyte specific markers HNF4A and Albumin, and for the pan epithelial marker E-Cadherin (C) by immunofluorescence analysis compared to isotype IgG control (scale bar 50 μm). (D) Fully differentiated Li-HLCs are functional with respect to the accumulation of lipids and glycogen as determined by Oil red O and Periodic Acid Schiff (PAS) staining (scale Bars 50 μm). Image quantification is described in S1 File.</p

    Evaluation of red wine made on a small scale utilizing frozen must

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    Copyright © 2007 American Chemical SocietyThis paper describes the use of frozen-stored red must as an alternative to fresh must to permit research fermentations outside the vintage period. Additionally, the fermentation size (20, 50, and 300 kg) was also compared. Chemical analyses of six wines showed little variation in color profiles and final ethanol and organic acid concentrations. More importantly from a winemaking point of view, a descriptive sensory analysis revealed that all wines across each treatment and fermentation scale compared very well to each other. Key differences were limited to more appealing characteristics (i.e., lower tannin hardness and burnt/smoky attributes and higher fresh/fruity and red berry attributes) in the wine made on a 300 kg scale from frozen must. This study therefore provides quantitative data on the effectiveness of freezing for fruit preservation as well as the ability of small volume fermentations (20 and 50 kg) to be representative of conditions approaching those found in industry.Frank Schmid, Yan Li, Briony Liebich, Julie Culbert, Chris Day, and Vladimir Jirane

    For a fi-diddle-li-day.

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    voice; guitarsCollected by James Ward Lee Kansas) Hindsville, Arkansas July 19, 1958 Sung by Joan O'Bryant (of Wichita and Ralph E. Roberts for Mary Celestia Parler Transcribed by Frances Majors Reel 240, Item 8 The Miller's Three Sons There wore three sons and I knowed then well, He taken sick and he likened to die, And he sent for sons . . . For a fi-diddle-li-day. The first he sent for was his oldest son, "My son, my son, my race is run, And if to you this mill I leave, Pray tell to me what toll you'll take." For a fi-diddle-li-day. "Oh, Father, you know my name is Ralph, And out of each bushel I'll take one half, Of every bushel that I do grind, I'll make as good a living as I can find." For a fi-diddle-li-day. "My son, my son, it's you won' t do, It's you won't do as I have done. The mill to you I cannot leave, For by such toll no man can live." For a fi-diddle-li-day. And then he sent for his second son, "My son, my son, my race is run, And if to you this mill I leave, Pray tell to me what toll you'll take." For a fi-diddle-li-day. "Father, you know my name is Dick, A nd out of each bushel I'll take one peck. Of every bushel that I do grind, I'll make as good a living as I can find." For a fi-diddle-li-day. "My son, my son, it's you won't do, It's you won't do as I have done. The mill to you I cannot leave, For by such toll no man can l ive." For a fi-diddle-li-day. (Cont'd) The Miller's Three Sons Sung by Joan O'Bryant Reel 240, Item 8 And then he called for his youngest son, "My son, my son, my race is run, And if to you this mill I leave, Pray tell to me what toll you'll take." For a fi-diddle-li-day. "Father, you know I'm your darling Roy, Stealing corn is all my joy. I'll steal the corn and swear . . . And box the boys when they get bad." For a fi-diddle-li-day. "My son, my son, it's you will do. It's you will do as I have done. The mill is yours," the old man cried, And then he kicked up his heels and died, For a fi-diddle-li-day.Funding for digitization provided by the Arkansas Humanities Council and the Happy Hollow Foundation
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