1,528 research outputs found
Educating Through Exploration
No full textAs children we learn how the world works by exploring, by trying and by failing. Why is it that the modern educational system does not reflect this intuitive form of learning? Dr. Anbar proposes an innovative new take on this process of education through exploration.
Ariel Anbar is a scientist and educator interested in Earth’s past and future evolution as an inhabited world, and the prospects for life beyond. His group’s major focus is the chemical evolution of the atmosphere and oceans, as revealed by the development of novel geochemical methods. Trained as a geologist and a chemist, Anbar is a President’s Professor at Arizona State University, where he is on the faculty of the School of Earth & Space Exploration and the School of Molecular Sciences, and a Distinguished Sustainability Scholar in the Global Institute of Sustainability. The author or co-author of over 100 refereed papers, Anbar directed ASU’s NASA-funded Astrobiology Program from 2009 – 2015, and oversees ASU’s new Center for Education Through eXploration. He is a graduate of Harvard (A.B. 1989) and Caltech (Ph.D. 1996). Before coming to ASU he was on the faculty of the University of Rochester from 1996 to 2004. Anbar is a Fellow of the Geological Society of America, which awarded him the Donath Medal in 2002. He was recognized as an HHMI Professor in 2014, and elected a Fellow of the Geochemical Society and the European Association of Geochemistry in 2015
Why are (human) lives political? Interview with Ariel Colonomos
No full textSite du CERIHow do we price lives? This question, far from being rhetorical, refers to notions that lie at the core of the political. Ethically, from a principled approach perspective, lives have an infinite value. However, politically, lives can be valued in material terms, i.e. they can be put in balance with material interest, whether these interests are monetary or political (such as the national interest). Ariel Colonomos, author of the recently published Pricing Lives (Oxford University Press, 2023), answers our questions and helps us better understand this crucial philosophical question. Interview by Miriam Périer, CERI
The stable Isotope Geochemistry of Molybdenum
No full textMolybdenum (Mo)—the element with atomic number 42—possesses unique properties that make it the answer to many questions in the geosciences, life sciences, and industry.
In the geosciences, the redox sensitivity of Mo makes it particularly useful for answering questions about environmental redox conditions. In particular, it was first suggested as an ocean paleoredox proxy over 30 years ago (Holland 1984; Emerson and Huested 1991)—an application that finally came to fruition in the late 1990s and 2000s when understanding of Mo geochemical behavior in modern environments improved significantly (e.g., Crusius et al. 1996; Helz et al. 1996, 2011; Morford and Emerson 1999; Erickson and Helz 2000; Barling et al. 2001; Siebert et al. 2003, 2005; Arnold et al. 2004; Vorlicek et al. 2004; Morford et al. 2005; Nägler et al. 2005; Algeo and Lyons 2006; McManus et al. 2006; Poulson et al. 2006; Anbar et al. 2007; Wille et al. 2007; Pearce et al. 2008; Archer and Vance 2008; Neubert et al. 2008; Scott et al. 2008; Gordon et al. 2009; Poulson Brucker et al. 2009)
Underwater theater show
No full text"Underwater Theater Show" is a collection of lyric poems tethered to ideas of performativity, the unknown, and the material world as it inevitably relates to the digital world.M.F.A.by Ariel Yele
Ariel Dorfman, 18th Annual ODU Literary Festival
No full textBorn in Argentina, Ariel Dorfman is a Chilean citizen who was forced into exile after the coup of 1973 that overthrew Salvador Allende. He is the author of the nonfiction books How to Read Donald Duck and The Empire’s Old Clothes; the novels Konfidenz, Mascara, The Last Song of Manuel Sendero, and Widows; short story collection, My House is on Fire; and a collection of poems, Last Waltz in Santiago. Dorfman’s books have been translated into twenty-seven languages. His play, Death and the Maiden, first performed in England in 1991, received the Time Out award as Best Play of the Year and the Sir Lawrence Olivier Award as Best Play of the Year. Juliet Stevenson received the same two awards as Best Actress. In the United States, Glenn Close won a Tony Award for Best Actress on Broadway in the same role. Recently, Sigourney Weaver, Ben Kingsley and Stuart Wilson along with director Roman Polanski have made Death and the Maiden into a film released in the United States in December of 1994. Mr. Dorfman, who is a regular contributor to the New York Times, the Los Angeles Times, the Village Voice, and The Nation lives in Durham, North Carolina, where he teaches at Duke whenever possible
Rodó y su Ariel : el Ariel de Rodó
No full textEl artículo presenta al autor de Ariel Rodó, como integrante de la promoción literaria uruguaya, como uno de los exponentes del modernismo y como pensador que pertenece a la generación de los Fundadores. Parte de la problemática Ariel- Calibán como símbolo latinoamericano y de la postulación de Ariel como discurso antiimperialista para situar la pregunta respecto de la función de la educación en la constitución del joven latinoamericano como sujeto social portador de sentido del proyecto nacional. Se tratan luego las figuras que se desprenden de los Prósperos, los Calibanes y los Arieles concebidos como la pluralidad de perspectivas desde las que transcurren las vidas de los sujetos y de los espacios desde los cuales las naciones se paran para mirarse unas a otras.This article introduces the author of Ariel, Rodó, as a member of the Uruguayan literary community, as well as one of the figures of expressionism, and as a thinker who belongs to the generation of the founders. It starts off from the Ariel-Calíban conflict as a Latin American symbol and from the postulation of Ariel as an antiilllpenallst discourse to pose the question about the function of education in the formation of the young Latin American as a social subject that bears the true sense of the national project. The study finally arrives at a meeting with the figures that derive themselves from the Prosperos, the Callbans and the Ariels conceived as the pluralism of the perspectives in which the lives of the subjects are Iived in the spaces from which the nations stand up in arder to take a look at one another.Fil: Alvarado, Mariana
Ariel Dorfman
No full textForced to flee Chile after the military coup in 1973, Ariel Dorfman has focused his writing on the trials of tyranny and exile. This program looks at how he has fought for human rights as a novelist, playwright, essayist, journalist, and professor of literature and Latin American studies. Many of the works of this multi-genre author are examined, including Death and the Maiden, his successful play which was turned into an international film by Academy Award-winning director Roman Polanski
Trace metal biogeochemistry in the ocean: From chemical principles to biological complexity
No full textIn many oceanic regions, low concentrations of micronutrient trace metals exert strong control on phytoplankton growth, ecosystem structure, and carbon cycling. However, the task of linking trace metal concentrations with primary productivity is complicated by the interplay among physical, chemical, and biological processes. Paying tribute to the Morel et al. (2003) chapter from this series, we explore trace-metal phytoplankton interactions, with an emphasis on ocean-derived measurements and experiments. Specifically, we synthesize our current understanding on bioavailability of dissolved iron, trace metal accumulation in phytoplankton, and global (micro)nutrient limitation patterns, which are each underpinned by fundamental chemical and biological processes. We then showcase two microbial interactions that impact Fe biogeochemistry: (a) the two-way interactions between marine viruses and Fe that toggle Fe fate between regeneration for reuse by marine microbes and export to the deep ocean, and (b) the mineral-microbe interactions within colonies of the cyanobacteria Trichodesmium spp. that likely add “new” Fe from dust. We end with some directions and challenges in line with the multidisciplinary trajectory of trace metal biogeochemistry research
Precambrian evolution of the nitrogen cycle
No full textNitrogen is the main constituent of Earth's atmosphere and is a critical nutrient for life. The focus of this chapter is on the evolution of the N cycle on Earth during the Precambrian (4.56 to 0.541 Ga). We discuss tools and approaches for studying past N cycling, as well as the evolution of the biologic, atmospheric, and solid Earth cycles. Within each section, we describe the current understanding of each field and highlight knowledge gaps for future work. We also provide some historical context for the study of N in the rock record
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