2,803 research outputs found
Hydrogen and Atom Transfer Activity of Saffron Extracts by Square Wave Voltammetry
No full textSaffron is an edible spice with highly appreciated sensory and antioxidant properties. One of the most representative redox species found in saffron extracts is crocin, whose content is used to evaluate the quality and value of the resulting spice. In this study, a voltammetry method based on the direct detection of crocin at a bare glassy carbon electrode is presented. The principle of the method is based on the monitoring of the anodic wave exhibited by crocin (0.1–1.0 mM) after its mixing with the azo radical initiator AAPH (20 mM) in ethanol:acetonitrile (1 : 1) solution. The decay rate of the anodic peak (E=+434 mV vs. Ag/Ag+), as a result of the consumption of crocin by AAPH, was used as index of the hydrogen transfer capacity and, thus, of its antioxidant activity. With a decay rate of k=0.02 h−1, crocin exhibits only a weak antioxidant activity in comparison with tocopherols (k=0.13 h−1), but still sufficient to protect against the oxidation of safranal, a further redox species found in saffron extracts and mainly responsible for its flavor. The proposed approach was finally applied to discriminate saffron extract samples from different geographical origins. The proposed approach is suitable to characterize the quality of saffron extracts and estimate its antioxidant properties
Rita B. Stadig Correspondence
No full textEntry is a handwritten biographical sketch of Rita Stadig author of Our Maine Heritage, a history of Maine
Keynote Speech by Rita Palacios and Luncheon
No full textRita Palacios holds a Ph.D. in Spanish and is a professor of languages in the School of Liberal Studies at Conestoga College in Kitchener, Ontario. Her research examines contemporary Maya literature from a cultural and gender studies perspective. She is the author of Unwriting Maya Literature: Ts’íib as Recorded Knowledge (with Paul M. Worley).
The luncheon is free for all registered participants
Profile: Rita Davenport
No full textRita Davenport is an award-winning TV producer, host, author, inspirational humorist, world-renowned entrepreneur and public speaker. She\u27s the author of four bestselling books
Rita Dove, 8th Annual ODU Literary Festival
No full textDescribed as one of the most original and exciting young poets writing in America today, Rita Dove is the author of two volumes of poetry, The Yellow House on the Corner and Museum; her third full-length collection, Thomas and Beulah, is forthcoming from Carnegie-Mellon in 1986. In addition to her poetry, Dove has published fiction and essays in numerous magazines, journals and anthologies, including the highly acclaimed Morrow Anthology of Younger American Poets. Her poetry has won for her a Fulbright/Hays Fellowship, as well as fellowships from the National Endowment for the Arts and the Guggenheim Foundation. She is a member of the editorial board of National Forum and a contributing and advisory editor of Callaloo: A Black South Journal of Arts and Letters. Ms. Dove will read with Richard Shelton on Thursday afternoon
Rita Dove
No full textRita Dove visited The College at Brockport in March 1985 and May 1993. She is a poet and author, and was the first African-American to serve as Poet Laureate Consultant in Poetry to the Library of CongressArchived web contentSUNY BrockportWriters Forum Author Photo
Santa Rita del Cobre: a copper mining community in New Mexico
No full textIncludes bibliographical references and index.El Cobre: Spanish and Mexican mining in Apacheria -- Frontier mining: the underground years -- The Chino years: the open pit, the men, and their methods -- Santa Rita: the company town and the community -- The Kennecott era: modern technology and big labor -- Epilogue: mining and the environment -- Appendices -- List of churn and rotary drills at Santa Rita, 1908-1996 -- List of Chino shovels, 1910-2008 -- List of Chino locomotives, 1910-1970 -- Santa Rita workforce: numbers of employees, 1910-2001 -- Fatalities at Chino Mine properties, 1881-2005 -- Production and profits at Chino, 1801-2005 -- Daily wage rates at Chino, 1912-1996
Paul Bach-y-Rita, neuroscience's forgotten genius
No full textThesis: S.M. in Science Writing, Massachusetts Institute of Technology, Department of Humanities, Graduate Program in Science Writing, 2013.Cataloged from PDF version of thesis. Vita.Includes bibliographical references (pages 24-29).Dr. Paul Bach-y-Rita was a visionary neuroscientist and an early pioneer of the theory of neuroplasticity. He is the father of sensory substitution, a field which explores how one sensory modality can be transferred to another. This work culminated in the invention of the Brainport, a device that transmits information through electrodes on the tongue. Bach-y- Rita's company, Wicab, developed two versions of the Brainport. One uses visual information to reveal the sighted world to the blind; another uses body alignment information to help "wobblers" (individuals with vestibular conditions) navigate. The author received exclusive access to Bach-y-Rita's unpublished memoirs. These papers-supplemented by visits to Bach-y-Rita's home in Wisconsin and personal interviews with his family and colleagues-help tell the story of a revolutionary technology that failed to reach the public who needed it.by Aviva Hope Rutkin.S.M. in Science Writin
Liza Donnelly to open workshop, Rita Davenport joins keynoter line-up
No full textAward-winning New Yorker Magazine cartoonist and author Liza Donnelly will open the 2018 Erma Bombeck Writers\u27 Workshop on Thursday, April 5, replacing Craig Ferguson, who has a scheduling conflict. The hilarious Rita Davenport, award-winning TV host, bestselling author, inspirational humorist and entrepreneur, has graciously stepped forward to serve as keynoter for the Friday, April 6, dinner
Re-contextualizing specialized English: from legislation to business
No full textThe paper investigates the processes of re-contextualization in specialized English when moving from the fields of legislation to business. Using a corpus consisting of E.U. and U.K. legislative documents, and the websites of The Big Six Energy Suppliers in the U.K, the author tracks how the language of the regulation for the market in energy and electricity is re-written into the business language of corporations. Adopting a quantitative methodology focused in the main on phraseology, and a qualitative framework focusing on intertextuality and interdiscursivity, the author compares the flow of concepts and principles through these different genres and their transfer across contexts with different interlocutors and participants
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