2,340 Matching Annotations
  1. Oct 2017
    1. Education, in like manner engrafts a new man on the native stock, & improves what in his nature was vicious & perverse, into qualities of virtue and social worth; and it cannot be but that each generation succeeding to the knowledge acquired by all those who preceded it

      This idea is perfectly neoclassical, which is why one can see that Jefferson stated this claim about the purpose of education in his report about the founding of the nation's next great university. Education as stated by Jefferson creates a new person out of the savage that he once was into a righteous person. The idea that education changes the nature of the person is not something I necessarily agree with as some of the most vicious people in history were well educated. Take a modern example someone such as Richard Spencer one of the leaders in the alt-right he is highly educated and even attended UVA but still remains vicious. However, it should be noted that usually the qualities of virtue and social worth are taught to a person when they come to university and they usually leave with greater virtue and social worth, it is just not always the case.

    2. This doctrine is the genuine fruit of the alliance between church and State,

      As Jefferson was someone who believed in the separation of church and state, encountering this sentence in a document proposing a university designed by Jefferson and his colleagues is rather alarming. It is almost implying that because of God, the university is being founded. However, I believe the sentence could be interpreted as saying that because of the heavy reliance on religion in other contemporary institutions of higher learning, that this new university would be one that is secular and not reliant on a religious governing body such as the other universities did. That being said it also noteworthy that Jefferson capitalized State and did not do so for church, implying possibly what body he believed to be superior. It holds true to today that the University of Virginia is a secular one

  2. Sep 2017
    1. Le greffe assure une mission de secrétariat auprès du tribunal de commerce où il occupe un rôle central. Il prépare et assiste chaque audience et apporte son concours aux juges afin qu’ils mènent à bien leurs missions.

      C'est quoi le rôle d'un greffe et d'un greffier du tribunal de commerce ?

    1. Deibertrightlyarguesthat‘althoughcyberspacemayseemlikevirtualreality,it’snot.EverydeviceweusetoconnecttotheInternet,everycable,machine,application,andpointalongthefibre-opticandwirelessspectrumthroughwhichdatapassesisapossiblefilteror“chokepoint,”agreyareathatcanbemonitoredandthatcanconstrainwhatwecancommunicate,thatcansurveilandchokeoffthefreeflowofcommunicationandinformation.’[59]NotonlydoesthismeanthattheInternethasmaterialeffectssuchasdatacentres,serverclusters,andcode,thoughthisiscertainlytrueandtherearestudiesaboutthesematerialforms.
    2. Ifthecomputerizationofsocietyraisessuchquestions,theanalysisoftheproduction,dissemination,andlegitimationofknowledge,onwhichithasaprofoundeffect,cannotberestrictedtounderstandingcomputerizationascommunicationorcomputer-mediatedcommunication.Rather,theobjectofinvestigationoughttobelanguagegamesthatbecamepossiblethroughwhatLyotardsawasnetworkedcomputers
    3. Wedisagreewiththisviewofcode.AlthoughwegatherfromLessigandotherscholarssuchasRonDeibertandJulieCohentheimportanceofcode,wecannotagreethatcodecanordoeshavesuchadetermininginfluence.[45]Wewill,however,explainthislaterinchapter3,wherewediscussinmoredetailtheimportanceoflanguageandtheirreducibledifferencesbetweenspeech,writing,andcode.Fornow,wewanttoemphasizethatifweareboundtousetheconcept‘cyberspace’andcompareittosomethingcalled‘real’space,we’dbetterunderstandthecomplexregistersinwhichcyberspaceexistsratherthanbeingopposedtoanostensible‘real’space.

      the irreducible differences between speech, writing, and code.

    4. TheanathemaforLessigisthelossofthisfreedomincyberspace.Inrealspace,governingpeoplerequiresinducingthemtoactincertainways,butinthelastinstance,peoplehadthechoicetoactthiswayorthatway.Bycontrast,incyberspaceconductisgovernedbycode,whichtakesawaythatchoice.Incyberspace,‘iftheregulatorwantstoinduceacertainbehavior,sheneednotthreaten,orcajole,toinspirethechange.Sheneedonlychangethecode—thesoftwarethatdefinesthetermsuponwhichtheindividualgainsaccesstothesystem,orusesassetsonthesystem.’[37]Thisisbecause‘codeisanefficientmeansofregulation.Butitsperfectionmakesitsomethingdifferent.Oneobeystheselawsascodenotbecauseoneshould;oneobeystheselawsascodebecauseonecandonothingelse.Thereisnochoiceaboutwhethertoyieldtothedemandforapassword;onecompliesifonewantstoenterthesystem.Inthewellimplementedsystem,thereisnocivildisobedience.’[38]WhatLessigsuggestsisthatcyberspaceisnotonlyseparateandindependentbutconstitutesanewmodeofpower.Youconstituteyourselfasasubjectofpowerbysubmittingtocode.

      En este caso particular la bifurcación es política a través del código, porque otros lugares del ciberespacio pueden ser creados ejerciendo este poder de bifurcar, si se entienden los códigos.

      En una charla de 2008, con Jose David Cuartas, le mencionaba cómo las libertades del software libre son teóricas, si no se entiende el código fuente de dicho software (las instrucciones con las que opera y se construye). Las prácticas alrededor del código, asi como los entornos físicos, comunitarios, simbólico y computacionales, donde dichas prácticas se dan, son importantes para alentar (o no) estas comprensiones y en últimas permitir que otros códigos den la posibilidad del disenso y de construir lugares distintos. De ahí que las infraestructuras de bolsillo sean importantes, pues estas disminuyen los costos de bifuración y construcción desde la diferencia.

    5. Moreover,withthedevelopmentoftheInternetofthings—ourphones,watches,dishwashers,fridges,cars,andmanyotherdevicesbeingalwaysalreadyconnectedtotheInternet—wenotonlydothingswithwordsbutalsodowordswiththings.

      These connected devices generate enormous volumes of data about our movements, locations, activities, interests, encounters,and private and public relationships through which we become data subjects.

    1. Jordan stipulates that the commonality of various perspectives on hacking (Himanen, 2001; Wark, 2004) is the hack, or the "ability to create new things, to make alterations, to produce differences" (Jordan, 2008, p. 7). These differences are linked with what Steven Levy (1984) called a "hands-on imperative" (p. 28) and enjoyment from deep concentration. By this line of thinking, the prerogative of hacking is that people should encounter technology not just to gain experience but for the enjoyment of pushing boundaries of what it was meant to do. Taylor (1999) describes the "kick" of hacking as "satisfying the technological urge of curiosity" (p. 17). This transgressing of the internal logic of systems lends a thrill that is difficult to pin down but is understood by those who have experienced it (Csikszentmihalyi, 1997). Tim Jordan's (2008) assertion that "hacking both demands and refutes technological determinism" (p. 133) gestures at a blending of material and social agencies in specific contexts. In other words, hackers see systems as malleable even as they rely on them to accomplish goals. Jordan saw this as paradoxical perhaps because technological determinism tends to be only viewed in the negative (Peters, 2011 ). Viewing his statements as a reflection on enabling and constraining (Giddens, 1986) engagements with materialities, rather than "determinism" per se, brings us towards a more productive theoretical framework for thinking about the connection of HMSs to informal learning.

      Esto podría resolver el tema de si todo es hackear? Una materialidad que, a pesar de hacerse en lo ordinario, también tiene que ver con retar los límites y luchar desde la tecnología con el determinismo tecnológico, parece una adecuada aproximación al término, sin convertirlo en totalizante.

    2. By comparison, HMSs are collective organizations centered around maintaining a specific space. The current study's site of investigation is a single relatively bounded group (GeekSpace). Members are circumscribed by the built environment of the shared workshop and a shared repertoire of online communication tools (website, mailing lists, wikis).

      Esto hace parte del repertorio material y simbólico compartido de una comunidad de práctica.

      Al comienzo la tesis quería indagar y alentar las relaciones entre las comunidades y sus hábitats digitales y físicos, pero luego se fue enfocando más en cosas como Grafoscopio y en comunidades más pequeñas.

    3. Scholars drawing on a constructivist line of scholarship (Papert, 1993) draw attention to the self-discovery that comes from encounters with objects (Cetina, 1997). This argument has been extended to technical learning, as free encounters with technical objects and systems are argued to encourage epistemological pluralism (Turkle & Papert, 1990). Experiential learning originates from Lewin, Piaget, and Dewey, and focuses on a continuous process of learning grounded in experiences that arise from an interplay between individual and environment (Kolb, 1984). The spatial nature of HMSs can be seen as a way to negotiate different learning styles
    4. Specifically, members encouraged learning and collaboration predominantly through a belief in materialities, particularly as GeekSpace's collective identity shifted from hacker to maker. Members altered the space to serve individual and collective goals rather than employing deliberation or strong organizational methods.
    1. Theorem 1.1.LetMn1andMn2be hypersurfaces ofNn+1that are tan-gent atpand let0be a unitary vector that is normal toMn1atp. SupposethatMn1remains aboveMn2in a neighborhood ofpwith respect to0. De-note byH1r(x)andH2r(x)ther-mean curvature atx2WofMn1andMn2,respectively. Assume that, for somer,1rn, we haveH2r(x)H1r(x)in a neighborhood of zero; ifr2, assume also that2(0), the principal cur-vature vector ofM2at zero, belongs tor. ThenMn1andMn2coincide in aneighborhood ofp

      Princípio da tangência no interior, para as curvaturas médias de ordem superior.

    2. LetMn1andMn2be hypersurfaces ofNn+1that are tangentatp, i.e., which satisfyTpM1=TpM2. Fix a unitary vector0that is normaltoMn1atp. We say thatMn1remains aboveMn2in a neighborhood ofpwith respect to0if, when we parametrizeMn1andMn2by'1and'2asin (1.1), the corresponding functions1and2satisfy1(x)2(x) in aneighborhood of zero.

      O conceito de uma hipersuperfície está (localmente) acima ou abaixo de uma outra.

    1. Material forms give coherence to the civic imagination. For example, Ross (2013) proposed that cultural practices of viewing the city “from above” in plans stimulated city planners’ civic imagination while they applied expertise in the planning process.
    2. Dunne and Raby’s (2013) notion of speculative design helps outline how future-oriented thought works at civic hackathons. They suggest that speculative design on “wicked problems” creates “spaces for discussion and debate about alternative ways of being, and to inspire and encourage people’s imaginations to flow freely” (Dunne & Raby, 2013, p. 2). They find merit in dreaming, as the future is an “aid imaginative thought” (p. 3). Materialities assist development of ideas and approaches to collectively thinking about possible futures. For them, critique has a place in design, particularly humor. Designers can “pull new technological developments into imaginary but believable everyday situations so that we can explore possible consequences before they happen” (p. 57). Speculative design is a helpful bridge to the civic imagination.

      De nuevo, acá hay una tensión sobre cómo el puente entre el presente y dichos futuros se logra. Como he señalado en otras ocasiones, la brecha entre dichos futuros y el presente es llenada por alguna forma de distopia usualmente, como pasó para con la visión Dynabook y los paradigmas actuales de computación.<br> Sin embargo hay que abonar la inmensa diversidad de que esa visión no se lograra (pues era un sistema mono-lenguaje, mono-paradigma). Podrían estas miradas diversas pero de complejidad accidental, hablar con las de los sistemas monolenguaje con complejidades fundamentales? (COLA parece una idea al respecto).

      Grafoscopio transita y propone dichos puentes entre futuros posibles y presente buscando inspiraciones diversas y combinándolas en una materialidad particular.

    3. “performance of innovation” (Balsamo, 2011) described how individuals collaboratively design technology in public settings. According to Balsamo, technology design emerges from a collaborative and cultural process that she terms "technoculture." Innovations are not objects, but like technology they are, “assemblages of practices, materialities, and affordances” (Balsamo, 2011, p. 8). Through performance and embodied action, technocultural innovation has a “dual logic”: the expression of the technological imagination and cultural reproduction.
    4. A more diverse range of participants attended, as civic hackathons were more frequented by community organizers, activists, and students than seasoned software engineers. Those who turned up were also more diverse in ways other than occupation – racially, ethnically, and by gender. These events were largely run by Hack for LA with a wide range of partners. Rarely did sponsors emphasize working code

      Para el Data Week el código funcional existe, pues estamos trabajando con narrativas de datos, en lugar de con aplicaciones. Incluso un boceto de una libreta arbórea es ya un prototipo funcional. La incorporación temprana de sistemas de control de versiones (Fossil), una vez Grafoscopio se estabilizó, ayuda a compartir tales prototipos tempranamente y hacerlos trazables y disponibles a otros.

      La modularidad para la transmisión de narrativas y código en libreta por un lado y en paquetes por otro, ayuda a que dichos prototipos se compartan, con diferentes niveles de experticia.

    5. the civic hackathon violated the very conventions of hackathons. It had “no hacking” in the traditional sense of creating or modifying working software. This curious disappearing act of code in hackathons over the last several years was controversial among programmers. Thea Aldrich of Random Hacks of Kindness wondered aloud when I interviewed her in 2013, “don’t community organizers already have ways to engage politically?” To Thea “civic hacking” was a form of civic engagement particular to the technically adept.

      En el Data Week tratamos de crear capacidad a través de la técnica, y recibimos distintas clases de experticia, si bien el encuentro está todavía muy centrado en el código y lo escritural y en una manera particular de hacerlo (live coding) a través de una plataforma particular (Pharo/Grafoscopio).

      Si bien lo escritural amplia el espectro, el código lo acota. La combinación de los dos, produce nuevas prácticas, como ha mostrado el reciente esfuerzo frente al Manual de Periodismo de Datos.

      Enfocarnos en un lugar, permite ampliar otros e incluso brinda a comunidades técnicas, nuevos aprendizajes. En algunos ediciones del evento, se ha charlado de descentrar el encuentro sobre el código y traer otros problemas a la mesa

    6. Simply diversifying participantion is no guarantee that outcomes benefit diverse communities, and declaring an event civically important does not make it so. After years of participating in and running civic hackathons I noticed a new turn. This new type of civic hackathon was intentionally run to foster performance, spectacle, and communicative activities around a loose shell of technology-oriented activities. Technology became more talked about than materially captured.
    7. civic hackathons in Los Angeles were rich spaces for observing communication about technology throughspeeches, group collaboration, and pitches.

      Otros eventos terminan, por ejemplo en exposiciones, mientras que la Data Week tienen continuidad en las Data Rodas y en futuras ediciones, pero no se exponen ampliamente al público. La relación entre lo que ocurre en esos espacios más cerrados y un público más amplio está por explorarse.

    8. Civic hackathons have been hotly debated in recent years. Critical studies scholars have lambasted civic hackathons for aligning with middle-class citizenship(Irani, 2015)and co-opting participant labor (Gregg, 2014a). Silicon Valley is often the fait accompliin these perspectives, bringing a flawed ideology that seduces organizers and participants into transposing technological language onto civic issues (Also see: Barbrook & Cameron, 1996; Morozov, 2013). In this paper I refer to this perspective as an “imposed civic ideology.” The second perspective comes from design scholars interested in material participation (Marres, 2012) as cohering publics to work on particular social issues. Lodato and DiSalvo (2016) suggested that civic hackathons served two purposes. First, they help people think through civic issues using props — “objects, services, and systems that engage with issues” (p. 16). Second, they cohere ephemeral proto-publics for short-term engagement on issues of public concern. As they summarized, "what is important is not the inventiveness of a particular prototype product or service, but rather, how the event fosters opportunities for collaborative or collective issue articulation" (p. 15). They drew attention to how outcomes of civic hackathons may more likely be social and cultural than functional material objects. I refer to this design perspective as an “emergent civic subjectivity.”

      La pregunta sería cómo los protopúblicos y activistas pueden encontrarse en este formato y cómo los "props" se convierten en prototipos durables e iterables, parecido a como lo hacemos con Grafoscopio.

      En particular me llama la atención entre las narrativas de datos y soluciones completas/integradas para ellas (tipo Grafoscopio) y las aplicaciones móviles más orientadas a la recolección de información, así como las redes sociales y canales de chat para articular ciudadanos. Los puentes sobre esas materialidades serían motivo de exploraciones futuras.

    1. The icebreaker for meetings became what they called craft aperitifs, small projects that kept their hands moving. These events invoked a particular idea of “craft” that we elaborate later, one that drew connec-tions between women’s contemporary milestones and feminist histories of handwork.

      Interesante ver cómo unas materialidades particulares, alientan otros diálogos.

      En el caso de Grafoscopio, éste nos permite hablar del bricolage que lo constituye: historia, informática, activismo, visualización, entre otros.

    2. Craft, according to Adamson, became “a strain of activity that responds to and conditions the putatively normative experience of modernity, in many and unpredictable ways” (Adamson, 2010: 5). It was not outside modernity “but a modern way of thinking otherwise.” In the writing that follows, we show how a logic of failure became a means for “thinking otherwise” about the hacking ethos.

      Materialidades distintas afectan la manera en que pensamos sobre el acto mismo de hackear.

    1. Echoing an old observation in activism about the “tyranny of structurelessness” (Freeman, 1972), power became difficult to contest when you remove the mechanisms to contest action. New visitors who didn’t immediately resonate with the space were turned off from the cold vision of geeks silently co-working next to each other. Longstanding members became frustrated by frequent clashes between hotheaded personalities. Then there were issues about what went where. Who didn’t put the hand drill back in the bin? Technology was a source of drama, particularly when commitments were discussed on email lists or in passing and then forgotten. Who said they would get the laser cutter running? Although sufficiently meta and informal to be palatable to members, it was hardly a smooth way to run an organization.

      Hemos tenido inconvenientes similares en HackBo, particularmente con los visitantes. Para ellos es difícil percibir el valor del espacio y pagar por algo incompleto, que no ofrece un servicio o productos específicos, más allá del espacio mismo y contar con un lugar donde trabajar en proyectos incompletos.

    2. hackerspace members’ relationship with materialities. In response, this chapter advances an idea about how interactions between individuals and things (Hodder, 2012) can shape collective action. Hackerspaces’ horizontalist mode of organizing is oriented around material forms of participation and communication.
    1. Lemma 4.2.The functionm(r) =ZΣrH0(1−u−1)dσris nonincreasing inr, whereH0is the mean curvature ofΣrinRn.

      Essa fórmula de monoticidade de fato vale em um cenário mais amplo, vide essa anotação, por exemplo.

    2. we can solve (2.1)with initial valueu−10= 0. In fact, by Lemma 2.2,u0satisfies:1−exp−Zr0ψ(s)ds−12≤u0(x,r)≤1−exp−Zr0φ(s)ds−12.This means that Σ0is a minimal surface with respect to the asymptotically flat metricu2dr2+gr.

      Esse é um ingrediente fundamental na nossa abordagem para a desigualdade de Alexandrov-Frenchel via desigualdade de Penrose.

    3. solve (2.1) and show that the metricds2=u2dr2+gris asymptotically flatoutside Σ0. We will also compute the mass ofds2.

      Vide teorema 2.1, no final da sessão.

    4. Let Σ0be a compact strictly convex hypersurface inRn,Xbe the position vector ofa point on Σ0, and letNbe the unit outward normal of Σ0atX. Let Σrbe the convexhypersurface described byY=X+rN, withr≥0. The Euclidean space outside Σ0canbe represented by(Σ0×(0,∞),dr2+gr)wheregris the induced metric on Σr. Consider the following initial value problem(2.1)2H0∂u∂r= 2u2∆ru+ (u−u3)Rron Σ0×[0,∞)u(x,0) =u0(x)whereu0(x)>0 is a smooth function on Σ0,H0andRrare the mean curvature and scalarcurvature of Σrrespectively, and ∆ris the Laplacian operator on Σr.

      Note que de agora em diante o autor se detém a estudar esse caso particular, onde estão inteiramente determinadas as geometrias intrínseca e extrínseca das folhas do semi cilindro, obtido folheando-se pelas paralelas o exterior da hipersuperfície estritamente convexa dada a priori.

    5. u2dρ2+gρhas the scalar curvatureR, if and onlyifusatisfies(1.10)H0∂u∂ρ=u2∆ρu+12(u−u3)Rρ−12uR0+u32R.

      Observe que essa equação fica inteiramente determinada pela especificação da geometria intrínseca e extrínseca das folhas.

      Para uma ideia do que é essencial se saber sobre a geometria das folhas do semi cilindro, vide essa anotação.

    6. Given a functionRonN, we want to find the equation forusuch that(1.2)ds2=u2dρ2+gρhas scalar curvatureR.

      O papel da aplicação \( u: N \longrightarrow \mathbb{R} \) é distorcer as fibras do semi cilindro \( N \), por dilatações e torções, deixando a geometria intrínseca das folhas invariante, de tal forma que o resultado seja um semi cilindro com a curvatura escalar prescrita \( \mathcal{R} \).

    7. Let Σ be a smooth compact manifold without boundary with dimensionn−1 and letN= [a,∞)×Σ equipped with a Riemannian metric of the form(1.1)ds20=dρ2+gρfor a point (ρ,x)∈N. Heregρis the induced metric on Σρwhich is the level surfaceρ=constant

      Isso significa que a construção a seguir é feita a partir de um semi cilindro em que a geometria das folhas é dada a priori.

      Esse artigo não trata da construção desse semi cilindro inicial.

  3. arxiv.org arxiv.org
    1. By (4), we haveddtZΣ×{t}(Hη−Hu)dσt!=ZΣ×{t}(η−1−u−1)H21+K(η−u)−12(η−1−u−1)(H21+|h1|2)dσt.(9)By the Gauss equation and the assumption thatRic(gη) = 0, we have(10)2K=H2η−|hη|2=η−2(H21−|h1|2).Therefore, it follows from (9) and (10) that(11)ddtZΣ×{t}(Hη−Hu)dσt!=−ZΣ×{t}K(η−u)2u−1dσt≤0,where we also used the assumption thatK >0.
    2. Assumption:The scalar curvatureR(gt) =: 2Kofgtand the meancurvatureH1of the leaves Σ×{t}with respect tog1are everywhere positive.Proposition 2(cf. [2], [23], [22]).Under the above assumption, given anypositive functionu0onΣ×{0}, there is a smooth positive functionuonΣ×[0, t0]such that the scalar curvatureR(gu)ofguis identically zero andu|t=0=u0.

      A prova dessa proposição deixa mais claro o que é essencial saber sobre a geometria das folhas do semi cilindro reto, para que seja possível deformar suas fibras prescrevendo a curvatura escalar, conforme foi descrito (com mais generalidade) por Shi-Tam.

  4. Aug 2017
    1. poesía de ruinas

      Si comparas ambos sonetos de Quevedo verás muchas similitudes, ya que "Miré los muros de la patria mía" también utiliza el tópico de las ruinas, tan característico del Barroco. ¿Podrías citar algunas? Puedes leer más sobre la poesía de ruinas en este artículo de Jordi Pardo Pastor: http://www.hispanista.com.br/revista/artigo79esp.htm

  5. Jul 2017
  6. Jun 2017
  7. May 2017
  8. arxiv.org arxiv.org
    1. the 2-tensorE(k)is defined byE(k)ij:=−12k+1gliδli1i2···i2k−1i2kjj1j2···j2k−1i2kRi1i2j1j2···Ri2k−1i2kj2k−1j2k.Here the generalized Kronecker delta is defined byδj1j2...jri1i2...ir= detδj1i1δj2i1···δjri1δj1i2δj2i2···δjri2............δj1irδj2ir···δjrir.As a convention we setE(0)= 1. It is clear to see thatE(1)is the Einstein tensor. The tensorE(k)ijis a very natural generalization of the Einstein tensor. We callE(k)thek-th Lovelockcurvature
  9. arxiv.org arxiv.org
    1. by the Gauss formula we have(4.8)eRslij=hsihlj−hlihsj.
    2. Pstjl(k)=12δi1i2···i2k−3i2k−2stj1j2···j2k−3j2k−2j2k−1j2khj1i1hj2i2···hj2k−2i2k−2gj2k−1jgj2kl,which implies by (2.20) that(4.10)2ePstjl(k)hsj= (2k−1)! (T(2k−1))tpgpl

      Esse resultado faz uso apenas do fato de que o ambiente tem curvatura seccional constante, da fórmula de Gauss (vide nota anterior) e das definições do tensor de curvatura \( \tilde{P}_{(k)} \) e do tensor de Newton, respectivamente.

    1. La AMAI es la única asociación profesional en Latinoamérica enfocada al sector de inteligencia aplicada a negocios y asuntos sociales. Fundada en 1992, la AMAI surgió originalmente para ser el centro institucional de la comunidad mexicana de investigación de mercados, opinión y comunicación; ahora engloba a toda la industria de generación y transformación de datos para la toma de decisiones.

      ¿Qué es la AMAI?

    1. the variations of various tensors under the Ricci flow: (31)
    2. Lichnerowicz Laplacian (or Hodge-de Rham Laplacian) on symmetric rank (0,2) tensors is defined by the formula (14) and is the usual connection Laplacian
    3. variation formula for the Ricci tensor (13) where is the trace, and the Lichnerowicz Laplacian (or Hodge-de Rham Laplacian) on symmetric rank (0,2) tensors is defined by the formula (14) and is the usual connection Laplacian.
  10. Mar 2017
    1. Ce que le texte liquide vient ainsi disrupter, c’est la référence et tout le système bibliographique qui s’est mis en place pour l’institutionnaliser. Or cette référence et son institutionnalisation sont les conditions du partage d’un socle commun de connaissances au sein d’une communauté de savoir. La possibilité de s’y référer procure au texte stabilisé une autorité et une authenticité nécessaires à une réflexion commune.
  11. Jan 2017
    1. I’ve collected the following list of needs based on what I’ve noticed across projects. I’ve tried to roughly organize it from critical (bottom of Maslow’s pyramid) to legacy (higher on the pyramid).
    1. Like many other AI practitioners, I’m a philosophical functionalist: I believe that a cognitive state, such as one derived from reading, should not be defined by what it is made of in terms of hardware or biology, but instead by how it functions, in relation to inputs, outputs and other cognitive states. (Opponents of functionalism include behaviourists – who insist that mental states are nothing other than dispositions to behave in certain ways – and mind-brain identity theorists – who argue that mental states are identical with particular neural states, and are tied to specific biological ‘hardware’.)

      La idea de dependencia en un "hardware" biológico es la más cercana a mi perspectiva. La funcionalista se acerca al test de Turing y proponentes similares.

    1. vengado

      ¿Conoces la frase popular "el fin justifica los medios"? Significa que cualquier procedimiento es válido para alcanzar un objetivo importante. ¿Estás de acuerdo con esta afirmación?

      En este cuento Emma trata de vengar a su padre, pero ¿justifica eso que mate a Lowenthal? ¿Crees que se puede justificar la venganza en un caso así?

  12. Dec 2016
  13. Nov 2016
    1. De acuerdo con Michael Moore, algunos votantes podrían dar su voto por Trump como una señal de advertencia para el deteriorado sistema político en EE.UU. que se niega a cambiar. "Por el enfado que muchos sienten hacia el sistema político, millones de personas votarán por Trump. No porque estén de acuerdo con él, no porque les guste, sino solo porque pueden hacerlo, solo por enfadar al sistema". 
    2. "Creo que Trump enfocará la mayor parte de su atención en los cuatro estados del cinturón industrial de los Grandes Lagos, que votan predominantemente por el Partido Demócrata: Michigan, Ohio, Pensilvania y Wisconsin", sostiene Michael Moore. Según el documentalista, todo lo que necesita Trump para ganar "son estos cuatro estados. No necesita Florida. No necesita Colorado o Virginia. Solo Michigan, Ohio, Pensilvania y Wisconsin"
    1. 2. The Quality of the Scan Scanners make a digital representation of visual input. The quality and type of output it is able to produce, will have an effect on the quality of the input provided to the OCR engine to process. Software programs (like the Image Capture dialog in Paperless) make it possible for the user to alter the visual properties (such as brightness and contrast) of the scanner's output. One of the biggest factors is DPI or Dots per Inch. Setting the DPI lower than 200 will yield uninteligible results wheras setting it higher than 600dpi will just increase the size of the stored file without yielding much better results. We tend to recommend a 300dpi for in item. Color vs. Black and White, vs. grayscale depends on your source material. Often times documents and receipts will not need to be stored in Color (as it makes the storage file larger) but the difference between B&W and grayscale can be profound depending on the source. In general, a grayscale image will provide a better result than a black and white image. Internally, the software performs adaptive binarization where it changes a grayscale image to a black and white image if this process is already done, presumably by your scanner software) it's possible some fidelity will be lost and the OCR results may suffer.
  14. www.greenpeace.org www.greenpeace.org
    1. En Europa este aumento es de 0,95ºC y en España se ha incrementado en 1,5ºC en las tres últimas décadas. En algunas zonas, como Murcia, subió 2ºC. Se prevé que aumente entre 1,1ºC y 6,4ºC para el año 2095.
    1. El Ártico se derrite más del doble de rápido que el resto de regiones del mundo: en los últimos 30 años hemos perdido tres cuartas partes de su hielo.
    1. 2016 2015 Incremento en % Enero 58 968 55 411 6,4 Febrero 79 128 72 079 9,8 Marzo 90 034 94 295 -4,5 Abril 78 561 67 696 16,0 Mayo 90 227 76 683 17,7 Junio 98 913 92 494 7,0 Julio 84 277 82 712 1,9 Agosto 47 670 44 555 7 Septiembre 59 122 55 838 5,9 Octubre 62 246 63 246 -1,9 Acumulado (Enero-Octubre) 749 091 705 593 6,2
    1. Hillary Clinton es la personificación de la palabra establishment. Desde que en 1979 se convirtiera en la primera dama de Arkansas, su nombre ha sido sinónimo de política. Nunca fue una primera dama al uso, ella quería tener una voz propia, se negaba a ser la sombra de su marido, algo que siempre ha molestado entre los círculos conservadores. Se la ha acusado de impertinente, de antipática y de poco carismática. Pero lo que más molesta de Clinton es el secretismo con el que ha gestionado su carrera.
    2. Trump se ha erigido como el candidato antiélites. No importa que él mismo forme parte de ella. Durante la campaña, el magnate ha prometido enfrentarse a unos poderes fácticos de los que cada vez más ciudadanos se sienten alejados. Lo ha pagado caro, con la pérdida de importantes donantes y el alejamiento de gran parte de los pesos pesados de su partido, pero ha sabido conectar con una clase trabajadora golpeada por la globalización y que vive la política con desafección.
    1. En el plano internacional, la incertidumbre sería absoluta, lo único que se podría esperar sería que los asesores presidenciales le disuadiesen de tomar decisiones impulsivas, como iniciar una guerra comercial con China o cambiar alianzas estratégicas que desembocasen en un acercamiento a la Rusia de Putin y un alejamiento de sus aliados tradicionales y las políticas de la OTAN.
    2. En el caso de EEUU, una posible victoria de Trump recrudecería el enfrentamiento social en el país. Su indisimulado desprecio hacia las minorías raciales y hacia los inmigrantes, a los que culpa de acaparar los empleos en detrimento de los trabajadores estadounidenses, podrían desembocar en una ola de racismo y exclusión con nefastas consecuencias para la convivencia
    3. sino que afectaría a la productividad empresarial y provocaría el cierre de muchas compañías
    1. Ver punto 4.5.1. Abierto a comentarios. Si deseas comentar anónimamente o sin registrarte, haz el Log in como:

      Usuario: Anonimo<br> Contraseña: anonimo

    1. Corporate practices can be directly hostile to individuals with exceptional skills and initiative in technical matters. I consider such management of technical people cruel and wasteful. Kierkegaard was a strong proponent for the individual against “the crowd” and has some serious discussion of the importance of aesthetics and ethical behavior. I couldn’t point to a specific language feature and say, “See, there’s the influence of the nineteenth-century philosopher,” but he is one of the roots of my reluctance to eliminate “expert level” features, to abolish “misuses,” and to limit features to support only uses that I know to be useful. I’m not particularly fond of Kierkegaard’s religious philosophy, though.

      Interesante ver cómo el lenguaje de programación es diseñado como una prevención contra la cultura corporativa.

    2. TR: In retrospect, in designing C++, wasn’t your decision to trade off programmer efficiency, security, and software reliability for run time performance a fundamental mistake?BS: Well, I don’t think I made such a trade-off. I want elegant and efficient code. Sometimes I get it. These dichotomies (between efficiency versus correctness, efficiency versus programmer time, efficiency versus high-level, et cetera.) are bogus.What I did do was to design C++ as first of all a systems programming language: I wanted to be able to write device drivers, embedded systems, and other code that needed to use hardware directly. Next, I wanted C++ to be a good language for designing tools. That required flexibility and performance, but also the ability to express elegant interfaces.
    3. And without real changes in user behavior, software suppliers are unlikely to change.
    4. People reward developers who deliver software that is cheap, buggy, and first. That’s because people want fancy new gadgets now.
    5. Software developers have become adept at the difficult art of building reasonably reliable systems out of unreliable parts. The snag is that often we do not know exactly how we did it: a system just “sort of evolved” into something minimally acceptable. Personally, I prefer to know when a system will work, and why it will.
    1. narrador

      ¿Qué tipo de narrador aparece en El almohadón de plumas?

    2. trama puede ser lineal o no lineal.

      ¿Qué tipo de trama tiene El almohadón de plumas?

    3. tipos de personajes

      ¿Crees que los personajes que encontramos en El almohadón de plumas tienen un carácter sencillo/plano? ¿O más bien complejo/redondo?

    4. personajes

      Después de leer el relato, ¿cuántos personajes dirías que hay? ¿Quién es el personaje protagonista? ¿Crees que hay algún personaje antagonista?

    1. Mexico is known as Día de los Muertos, “Day of the Dead,” and celebrations take place on the first two days of November, when family and friends gather to remember loved ones who have died.

      The Day of the Dead is a holiday in which you honor loved ones that have died.

  15. Oct 2016
    1. Oklahoma Correctional Industries; workers scan the original photos and prepare metadata

      We can make the argument here that the University of North Texas, the Oklahoma Historical Society, and the Ethics in Journalism Foundation support de facto slave labor. Let's be honest here: "workers" = "prisoners"

  16. Sep 2016
    1. the risk of re-identification increases by virtue of having more data points on students from multiple contexts

      Very important to keep in mind. Not only do we realise that re-identification is a risk, but this risk is exacerbated by the increase in “triangulation”. Hence some discussions about Differential Privacy.

  17. Aug 2016
    1. botón

      Antes del siglo XX hubo algunos escritores españoles que plasmaron en sus obras la preocupación que sentían por el futuro de España ante una sociedad cada vez más mecanizada; pero algunos también confiaron en el progreso, que veían en otros países europeos, como solución a los problemas de su propia sociedad, llegando incluso a adelantarse a algunos inventos que fueron realidad más tarde. Si te interesa este tema, puedes leer más aquí.

    1. PostgreSQL Firebird HSQLDB DB2IBM Informix mSQL MySQL MariaDB Oracle SQL-Server TinySQL ZODB JADE Sybase Microsoft Access (Alguns o consideram SGBD mas é um SGBDR) Microsoft Visual Foxpro

      Exemplos de SGBDs

    1. Um banco de dados relacional é um banco de dados que modela os dados de uma forma que eles sejam percebidos pelo usuário como tabelas, ou mais formalmente relações.

      tabelas = relações

  18. Jul 2016
    1. un régime spectaculaire, fonctionnant sur une coupure scénique et une convergence des regards vers un espace-temps attentionnel unique

      société du spectacle

    1. De ce point de vue, il n'est pas nécessaire d'argumenter longuement sur ces dispositions car le convergence des structures de productivité peut produire des miracles et agrémenter le soutien du jeu des stratégies des forces en présence.

  19. Jun 2016
    1. I thought was anonymised, but, two or three months later, I was able to de-anonymise it. 

This happened with crowdflow.net, a project about the consolidated.db, the database that records all of your movements on iPhones, that was backed-up unencrypted on PCs and Macs.
  20. May 2016
    1. nalogies between teaching and various aspects of show business or guidance counseling are more often than not excuses for having abdicated the task

      On why showy teaching is bad teaching p.3

      De Man, Paul. “The Resistance to Theory.” Yale French Studies, no. 63 (1982): 3–20. doi:10.2307/2929828.

    1. In the process of supporting our Services, we may need to investigate the data within your account, including data you have entered into private boards, cases, wikis, etc. If this occurs, we will always request your explicit permission before looking at the data in your account.

      Solicitação de autorização para análise de quadros privados.

    2. . Information like that, which is voluntarily posted in publicly visible parts of our Services, is considered to be public, even if it would otherwise be considered to be personally identifying or sensitive.

      Informa que os arquivos postados como públicos assim serão tratados mesmo que confidenciais ou identificáveis.

    1. (k) "stalk" or otherwise harass another;

      Compromisso de não stalkear outros usuários.

    2. You understand that the technical processing and transmission of the Service, including Your User Content, may involve (a) transmissions over various networks; and (b) changes to conform and adapt to technical requirements of connecting networks or devices.

      Reforçar que a transmissão envolve outros serviços e agentes que não unicamente o trello.

    3. ou agree that You must evaluate, and bear all risks associated with, the use of any Content, including any reliance on the accuracy, completeness, or usefulness of such Content

      Transfere para o usuário a responsabilidade de ponderar os riscos sobre o fato de dispor seus próprios conteúdos pelo aplicativo.

    4. You acknowledge that Trello does not pre-screen User Content, but that Trello and its designees shall have the right (but not the obligation) in their sole discretion to refuse, modify or move any Content that is available via the Service.

      O Trello garante não verifica previamente o conteúdo postados pelo usuário, porém tem o direito, não obrigação, de movê-los ou excluí-los caso necessário.

    5. However, by uploading any User Content to the Service, You agree that Trello may store and display (only to You, to the extent that You make such User Content private) Your User Content solely as necessary in connection with the Service. To the extent You choose to share any of Your User Content with other users of the Service, You agree to allow these users (i.e., only the users you specify) to view Your User Content and, to the extent applicable, collaborate with You and Your User Content.

      Autorização para apresentar o conteúdo de acordo com as opções de privacidade setadas pelo usuário (privadas, públicas ou com indivíduos em específico).

    6. Trello is not directed to children, and we expect that any use by children will only be done with the guidance, supervision and consent of their parents, guardians and/or authorized school officials

      Idade mínima de uso.

  21. Mar 2016
  22. Feb 2016
    1. I think that such third-party review companies should exist for the sole purpose of providing competent, thorough, trust-worthy review of scientific papers and that a focus on profit might divert their attention from this goal. For example, unreasonably high profit margins are one of the reasons that large publishers such as Elsevier are currently being criticised.
  23. Jan 2016
    1. En el caso de contenido protegido por derechos de propiedad intelectual, como fotos y videos ("contenido de PI"), nos concedes específicamente el siguiente permiso, de acuerdo con la configuración de la privacidad y de las aplicaciones: nos concedes una licencia no exclusiva, transferible, con derechos de sublicencia, libre de regalías y aplicable en todo el mundo para utilizar cualquier contenido de PI que publiques en Facebook o en conexión con Facebook ("licencia de PI").
    1. Average publishing costs per article vary substantially depending on a range of factors including rejection rate (which drives peer review costs), range and type of content, levels of editorial services, and others. The average 2010 cost of publishing an article in a subscription-based journal with print and electronic editions was estimated by CEPA to be around £3095 (excluding non-cash peer review costs). The potential for open access to effect cost savings has been much discussed, but the emergence of pure-play open access journal publishers allows examples of average article costs to be inferred from their financial statements. These range from $290 (Hindawi), through $1088 (PLOS), up to a significantly higher figure for eLife (page 66).
    2. There is continued interest in expanding access by identifying and addressing these specific barriers to access or access gaps. While open access has received most attention, other ideas explored have included increased funding for national licences to extend and rationalise cover; walk-in access via public libraries (a national scheme was piloted in the UK in 2014); the development of licences for sectors such as central and local government, the voluntary sector, and businesses (page 84)
    3. The most commonly cited barriers to access are cost barriers and pricing, but other barriers cited in surveys include: lack of awareness of available resources; a burdensome purchasing procedure; VAT on digital publications; format and IT problems; lack of library membership; and conflict between the author’s or publisher’s rights and the desired use of the content (page 84).
    4. Text and data mining are starting to emerge from niche use in the life sciences industry, with the potential to transform the way scientists use the literature. It is expected to grow in importance, driven by greater availability of digital corpuses, increasing computer capabilities and easier-to-use software, and wider access to content
    5. Reading patterns are changing, however, with researchers reading more, averaging 270 articles per year, depending on discipline (more in medicine and science, fewer in humanities and social sciences), but spending less time per article, with reported reading times down from 45-50 minutes in the mid-1990s to just over 30 minutes. Access and navigation to articles is increasingly driven by search rather than browsing; at present there is little evidence that social referrals are a major source of access (unlike consumer news sites, for example), though new scientific social networks may change this. Researchers spend very little time on average on publisher web sites, “bouncing” in and out and collecting what they need for later reference (page 52).
    1. At the moment, Neylon explains, the scholarly publishing process involves ferrying a document from place to place. Researchers prepare manuscripts, share them with colleagues, fold in comments and submit them to journals. Journal editors send copies to peer reviewers, returning their comments to the author, who goes back and forth with the editor to finalize the text. After publication, readers weigh in with commentary of their own.
    2. To jump-start interest in the annotation program, arXiv has been converting mentions of its articles in external blog posts (called trackbacks) into annotations that are visible on an article's abstract page when using Hypothes.is.
    3. The scientific publisher eLife in Cambridge, UK, has been testing the feasibility of using Hypothes.is to replace its peer-review commenting system, says Ian Mulvany, who heads technology at the firm. The publisher plans to incorporate the annotation platform in a site redesign instead of its current commenting system, Disqus. At a minimum, says Mulvany, Hypothes.is provides a mechanism for more-targeted commentary — the equivalent of moving comments up from the bottom of a web page into the main body of the article itself.
    4. The digital library JSTOR, for example, is developing a custom Hypothes.is tool for its educational project with the Poetry Foundation, a literary organization and publisher in Chicago, Illinois.
    5. That should enable the tool to be used for journal clubs, classroom exercises and even peer review.
  24. Nov 2015
    1. Aparentemente, segundo o que Bob Murphy fala logo depois do meio da gravação, nos Estados Unidos, até o Obamacare, existiam planos de saúde que não cobriam todas as frescuras médicas que os planos de saúde brasileiros cobrem (psicólogos, consultas de meninos gripados, dentista, dermatologista), mas apenas grandes fatalidades e acidentes.

      Um plano desse é realmente um seguro de saúde, e não uma babá médica, e provavelmente é bem mais barato e bem menos elástico em relação à idade do segurado.

      Também, se havia esse tipo de plano, é porque era possível pagar por consultas e procedimentos médicos individualmente, sem que estes custassem uma fortuna (este mesmo áudio conta um caso de um procedimento totalmente sem risco, que seria realizado pela assistente do médico em menos de 30 minutos, o sujeito quis pagar em dinheiro e cobraram dele 700 dólares -- isto pós-Obamacare).

  25. Sep 2015
    1. I made four fires, in the form of a cross

      Do you think CDV is building the symbolism of his narrative intentionally?

    2. Thank God I found a burning tree,

      Ok, English majors, HAVE AT IT.

    3. After he made over them the sign of the cross, and commended them to God, they instantly said that all the pain had left,

      What do you folks think about this moment?

    1. near the shore, they began to move on hands and feet, crawling to land into some ravines

      SHIPWRECKED.

    2. He answered that it was no longer a time in which one should com- mand another] but that each should do what he thought best to save his own life ; that he so intended to act; and saying this, he departed with his boat...

      Every man for himself....seems like a fateful decision, but props to de Vaca for always trying to keep the group together...

    1. caused their interpreter to tell the Indians that we were of them, and for a long time we had been lost; that they were the lords of the land who must be obeyed and served, while we were persons of mean condition and small force. The Indians cared little or nothing for what was told them; and conversing among themselves said the Christians lied : that we had come whence the sun rises, and they whence it goes down : we healed the sick, they killed the sound ; that we had come naked and barefooted, while they had arrived in clothing and on horses with lances; that we were not covetous of anything, but all that was given to us, we directly turned to give, remaining with nothing; that the others had the only purpose to rob whomsoever they found, bestow- ing nothing on any one... Even to the last, I could not convince the Indians that we were of the Christians...

      One of the most famous passages in CDV. What do you think of it?

    2. e had many high words with, them ; for they wished to make slaves of the Indians we brought...

      Key moment, maybe?

    1. e told the natives that we were going in search of that people, to order them not to kill nor make slaves of them, nor take them from their lands, nor do other injustice. Of this the Indians were very glad.

      Hmmm...is that really why they are looking for the other Spaniards?

    2. certain men who wore beards like us, had come from heaven and arrived at that river; bringing horses, lances, and swords, and that they had lanced two Indians

      Interesting characterization of the "heavenly."

    1. we knew not how to construct, nor were there tools, nor iron, nor forge, nor tow, nor resin, nor rigging; finally, no one thing of so many that are necessary, nor any man who had a knowledge of their manufacture;

      Basically, there is no infrastructure to build what they need, and these gentlemen have no survival skills...or skills at all...

    1. for whom the good armor they wore did not avail. There were those this day who swore that they had seen two red oaks, each the thickness of the lower part of the leg, pierced through from side to side by arrows

      Interesting characterization of the Indians' weaponry as advanced/effective.

    1. I have written this with much exactness ; and although in it may be read things very novel and for some persons difficult to believe, nevertheless they may without hesitation credit me as strictly faithful. Better than to exaggerate, I have lessened in all things,

      Appeal to truth, but also an acknowledgment of the drama of the story....

    2. that if at any time God our Lord should will to bring me where I now am, it might testify to my exertion in the royal behalf.

      Recasts his journey's value as inhering in the information he can supply back to the crown.

    1. Currently, Facebook, by providing free access to select websites, via its platform to a number of emerging economies, has become the internet to this substantive user base. Net neutrality here has evidently taken a backseat in the name of doing good and given Facebook a unique vantage point into database behaviour among this bop populace.

      Facebook intentando tener una posición privilegiada de mercado usando a los pobres y la "inclusión" como instrumento.

    2. The question that remains is how to treat this rising populace as culturally diverse and yet refrain from exoticizing them; how to allow big data to be an empowering tool among emerging economies while simultaneously strengthening their institutions; and how to create alternative modes of inclusivity to the default neoliberal approach of the marketization of the poor.
  26. Aug 2015
    1. De Ketele studied general, technical and professional education from 1964 to 1967 and earned degrees in psychology in 1972 and in education in 1973, both from the Université catholique de Louvain. In 1977 he received a doctoral degree with a speciality in observation and evaluation. In 1991 he became an ordinary professor at the Université catholique de Louvain, where he is now professor emeritus. In 1994, he was appointed to the UNESCO chair in education sciences at Cheikh Anta Diop University in Dakar, which he assisted in establishing;[1] he spent 16 years in Senegal.[2] He has also been a visiting professor at Paris West University Nanterre La Défense, at the Faculty of Medicine at Paris 13 University, at Pierre Mendès-France University in Grenoble and at the University of Fribourg.
  27. Jun 2015
    1. a principios de abril el Parlamento heleno lanzó este comité presidido por el politólogo belga Eric Toussaint, quien ya ha auditado otras deudas como la de Ecuador, que derivó en una reestructuración previa negociación con los acreedores. Profesor de la Universidad de Lieja y presidente del Comité para la Anulación de la Deuda en el Tercer Mundo, Toussaint, probablemente urgido por el Ejecutivo de Tsipras ante la agonía que le espera este 18 y 19 de junio en el Eurogrupo de Luxemburgo, presentó en Atenas un documento de 50 páginas del que el plato fuerte se conocerá el mismo día que se reúne el Eurogrupo. Lo que viene a continuación es un resumen de algunos de los puntos principales del texto, que atribuye a la troika (BCE, FMI, Comisión Europea) gravísimas imputaciones.
  28. Feb 2015
    1. ¿Cómo se presentan las dinámicas sobre la ilegalidad de la ocupación del espacio público de parte de los vendedores ambulantes, frente a los organismos policiales en el centro de Bogotá, Colombia, en el primer semestre del año 2015?