667 research outputs found

    African Art: What and to Whom? Anxieties, Certainties, Mythologies

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    It has taken nearly a whole century to publish two books on African art that recognize the continent as a complex cultural unit within which there is diversity, A History of Art in Africa (Blackmun Visona, M et al, 2001) and Africa, The Art of a Continent (Phillips, T. 1995). Why it taken so long far North and East Africa past and present to be included in texts labeled African art? Why were they not recognized as African? India, also a place of diversity of race and ethnicity, has not similarly treated. The assumptions underlying the norms a representation of Africa were deeply rooted, their influence scholarship related to African art and culture was profound and, even if attenuated at present, persistent. They have impacted on the organization of information related to Africa, influencing from cataloging, the content of texts and videos, to museum layout exhibitions. Only by becoming conscious of the pervasive power of this hidden curriculum can we take steps to counter its influence. Those underlying assumptions are symptomatic of European fear5aJlII desires related to African identity

    The OpenPicoAmp : an open-source planar lipid bilayer amplifier for hands-on learning of neuroscience

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    Neuroscience education can be promoted by the availability of low cost and engaging teaching materials. To address this issue, we developed an open-source lipid bilayer amplifier, the OpenPicoAmp, which is appropriate for use in introductory courses in biophysics or neurosciences dealing with the electrical properties of the cell membrane. The amplifier is designed using the common lithographic printed circuit board fabrication process and off-the-shelf electronic components. In addition, we propose a specific design for experimental chambers allowing the insertion of a commercially available polytetrafluoroethylene film. This experimental setup can be used in simple experiments in which students monitor the bilayer formation by capacitance measurement and record unitary currents produced by ionic channels like gramicidin A. Used in combination with a low-cost data acquisition board this system provides a complete solution for hands-on lessons, therefore improving the effectiveness in teaching basic neurosciences or biophysics.Comment: 13 pages, 6 figures and supplementary information (9 files including one movie). Added references, added figure, corrected typos, corrected board components list, more detailled implementation documen

    Losing Face

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    When Al makes an offer to Betty that Betty observes and rejects, Al may “lose face”. This loss of face (LoF) may cost Al utility, either directly or through reputation effects. This can lead to fewer offers and inefficiency in the context of bilateral matching problems, e.g., the marriage market, research partnering, and international negotiations. We offer a simple model with asymmetric information, a continuous signal of an individual’s binary type, and a linear marriage production function. We add a primitive LoF term, characterize the stable equilibria, compare the benchmark without LoF to a case where only one side is vulnerable to LoF, and present comparative statics. A small amount of LoF has no effect on low types’ behavior, but, will make high types on both sides more selective. A stronger LoF drives high types out of the market, and makes low types reverse snobs, further reducing welfare. LoF also makes rejecting strictly preferred to being rejected, making the “high types reject” equilibrium stable. We can eliminate the effects of LoF by letting the vulnerable side move second, or setting up a “Conditionally Anonymous Environment” that only reveals when both parties say yes. We motivate our model with a variety of empirical examples, and we suggest policy and managerial implications

    An Overheated Debate: The Influence of Premillennial Apocalyptic Rhetoric on Climate Reform Discourse in the United States

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    Despite decades of scientific research and increased civil and governmental calls for reform, the United States continues to spiral toward climate catastrophe. Apocalyptic rhetoric helps us understand how even the most pressing environmental and societal threats are perceived differently according to audiences\u27 rhetorical and ideological frameworks. Drawing on the work of Barry Brummett and Kenneth Burke, I argue that the premillennial sub-genre of apocalyptic rhetoric constitutes a rhetorical frame through which many secular climate reformers and evangelical Christians make sense of the environmental and societal impacts of climate change. In chapters that analyze secular and Christian climate reform discourse and apocalyptic evangelical discourse produced during the COVID-19 pandemic, I demonstrate through rhetorical analysis that apocalyptic rhetoric is a persistent frame through which citizens make sense of not only climate change but other perceived threats. I suggest that by attending to the influence of apocalyptic rhetoric on the production and reception of climate change and climate reform discourse, climate reform rhetors may be positioned to produce environmental discourse that is more likely to engage (or at least not alienate) a wider variety of U.S. audiences, especially evangelical Christians. Drawing upon the findings of environmental rhetoric and communication scholars, I outline a series of rhetorical strategies that may be used to more productively engage not just climate resistant audiences but a variety of audiences whose attitudes toward a particular societal problem are characterized by intense ideological resistance. Despite the potential for such strategies to create possibilities for rhetorical engagement, I suggest that the influence of premillennialism on U.S. climate action leads us to reconsider the role of deliberative democratic discourse as a means of resolving such large-scale, pressing problems in the public sphere. I conclude this project by reflecting on the implications of apocalyptic rhetoric for climate reform discourse within the U.S. more generally, as well as the structural inequities that continue to fuel such resistance among evangelical Christian audiences

    Systematics of moths in the genus Catocala (Lepidoptera, Erebidae) IV. Nomenclatorial stabilization of the Nearctic fauna, with a revised synonymic check list

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    The taxonomy of the Nearctic species in the genus Catocala is reviewed, and a revised check list presented. A total of 101 species is recognized, with a synonymy comprising 357 names. The status of 61 available names is assessed, with designation and illustration of 41 lectotypes and 5 neotypes. Taxonomic changes include 23 new synonymies, 3 revised synonymies, 8 new statuses and 1 revised status. Two subspecies are elevated to species rank (Catocala carissima Hulst, 1884 and Catocala luctuosa Hulst, 1884), 15 subspecies are synonymized, and another 15 species are either downgraded to subspecies or synonymized

    The Indianapolis Foundation Library Partners

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    In 1989 an anonymous bequest of nearly 15millionwasmadetoTheIndianapolisFoundation,creatingtheLibraryFund,whichwouldbeusedtosupportMarionCountylibraries.Thisgroup,whichwouldcometobecalledTheIndianapolisFoundationLibraryPartners,wasmadeupoftheIndianapolisMarionCountyPublicLibrary(IMCPL);thelibrariesofallofthepublic,private,andparochialhighschoolsinMarionCounty;andthelibrariesofIndianaUniversityPurdueUniversityIndianapolis(IUPUI),MarianCollege,andtheUniversityofIndianapolis.ThedonorstipulatedthatthatTheIndianapolisFoundationshallgivepreferencetoprojectswhichcannotbemetbytheoperatingbudgetsoftherecipientinstitutions.Further,thedonorexpressedahopethat,inexercisingitsdiscretion,theFoundationwillemphasizeprovisionofbooksandotherlibrarymaterialsratherthantheemploymentofpersonnelandtheconstructionofbuildings.ThustheproceedsoftheLibraryFundweretobeusedfornew,innovative,andcollaborativeprojects.Corelibraryoperationexpensesandbuildingprojectswereexcluded.Thisremarkablegiftcreatedaresource,nowvaluedatapproximately15 million was made to The Indianapolis Foundation, creating the Library Fund, which would be used to support Marion County libraries. This group, which would come to be called The Indianapolis Foundation Library Partners, was made up of the Indianapolis Marion County Public Library (IMCPL); the libraries of all of the public, private, and parochial high schools in Marion County; and the libraries of Indiana University Purdue University Indianapolis (IUPUI), Marian College, and the University of Indianapolis. The donor stipulated that that The Indianapolis Foundation “shall give preference to projects which cannot be met by the operating budgets of the recipient institutions.” Further, the donor expressed a hope that, “in exercising its discretion, the Foundation will emphasize provision of books and other library materials rather than the employment of personnel and the construction of buildings.” Thus the proceeds of the Library Fund were to be used for new, innovative, and collaborative projects. Core library operation expenses and building projects were excluded. This remarkable gift created a resource, now valued at approximately 25 million and producing approximately 1.25millionayear,thatistrulyunique.Sinceitsbeginningin1989,theLibraryFundhasmadeover1.25 million a year, that is truly unique. Since its beginning in 1989, the Library Fund has made over 16 million in grants to Marion County libraries. This resource in turn fostered a collaborative environment among the libraries and librarians in Marion County that is also unique. In this article we describe the history of The Indianapolis Foundation Library Partners, its current programs, and its growth over the years

    Engineering robust polar chiral clathrate crystals

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    This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ Royal Society of Chemistry 2013.The R-(+)-enantiomeric form of Dianin's compound and the S-(+)-enantiomeric form of its direct thiachroman analogue both obtained chromatographically employing a cellulose tris(3,5-dimethylphenylcarbamate) column, are shown to undergo supramolecular assembly to form a polar clathrate lattice which is stable even in the absence of a consolidating guest component