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UCL University College London Eprints (372,926 recursos)

UCL Eprints collects the work of UCL researchers and makes it freely available over the web, helping the worldwide scholarly community to discover UCL research. Institutional repositories like UCL Eprints complement the traditional academic publishing and scholarly communications processes. They raise the visibility of research and help to maximise its impact. UCL researchers are encouraged to deposit a copy of each journal article, conference paper, working paper, and any other research output, in the UCL Eprints at the earliest opportunity, ensuring that their research reaches as wide an audience as possible.

Mostrando recursos 141 - 160 de 376,750

  1. Margaret thatcher and the decline of class politics

    Lawrence, J; Sutcliffe-Braithwaite, F
    © Cambridge University Press 2012.Ditching the class baggage When Margaret Thatcher became leader of the Conservative Party in 1975, British public discourse remained heavily stamped by the impress of social class. Indeed, arguably ‘languages of class’ were more ubiquitous in the 1970s than they had been a decade earlier. In the 1960s, Wilson’s shrewd campaign against the Conservatives’ ‘thirteen wasted years’ had traded heavily on a classless populism. In the anti-establishment rhetoric of Wilson’s proposed technocratic revolution, the rule of the privileged ‘classes’ was to give way to a new meritocracy capable of reversing Britain’s relative economic decline. Reworking earlier...

  2. Factors limiting the number of independent cultural traits that can bemaintained in a population

    Fogarty, L; Wakano, JY; Feldman, M; Aoki, K
    © Springer Japan 2015.We obtain the theoretically expected number of independent cultural traits at equilibrium in a population where one of four modes of social learning—random oblique, best-of-K, success bias, or one-to-many—is practiced by its members. Cultural traits can be classified as simple or complex, depending on the ease or difficulty of acquisition by social learning and innovation. The number of simple cultural traits may saturate as population size increases, in which case a statistical association between the two variables is not predicted. At smaller population sizes, there is a major effect of the mode of social learning on the...

  3. Homo antecessor: The state of the art eighteen years later

    Bermúdez-de-Castro, JM; Martinón-Torres, M; Martín-Francés, L; Modesto-Mata, M; Martínez-de-Pinillos, M; García, C; Carbonell, E
    © 2015 Elsevier Ltd and INQUA.It is eighteen years since the human fossils recovered from the TD6 level of the Gran Dolina cave site, in Sierra de Atapuerca (Burgos, northern Spain) were assigned to a new hominin species, Homo antecessor. This review summarizes the main results obtained from the study of these fossils during this period. The increase of the African and Eurasian fossil record, as well as the application of new methodological approaches, has led to competing interpretations about its hypothetical phylogenetic position and possible evolutionary scenarios. At present, we can argue that this species is defined by a...

  4. Evolutionary interpretation of the modern human-like facial morphology of the Atapuerca Gran Dolina-TD6 hominins

    Bermúdez De Castro, JM; Martinón-Torres, M
    © 2014 The Anthropological Society of Nippon.The Early Pleistocene human fossil remains recovered from the TD6 lithostratigraphic unit of the Gran Dolina cave site in the Sierra de Atapuerca, northern Spain, show a mosaic of primitive and derived features. Among the latter, the modern human-like midfacial topography, as well as several synapomorphies shared with some European Middle Pleistocene hominin and Neanderthals, represents a challenge for the phylogenetic interpretation of Homo antecessor. Using an ontogenetic approach of the maxilla ATD6-69, Freidline et al. (Journal of Human Evolution, 65: 404–423 (2013)) have confirmed previous observations that H. antecessor adults had a set...

  5. The Atapuerca sites and their contribution to the knowledge of human evolution in Europe

    De Castro, JMB; Martinon-Torres, M; Carbonell, E; Sarmiento, S; Rosas, A; Van der Made, J; Lozano, M
    Over the last two decades, the Pleistocene sites of the Sierra de Atapuerca (Spain) have provided two extraordinary assemblages of hominin fossils that have helped refine the evolutionary story of the genus Homo in Europe. The TD6 level of the Gran Dolina site has yielded about one hundred remains belonging to a minimum of six individuals of the species Homo antecessor. These fossils, dated to the end of the Lower Pleistocene (800 kyr), provide the earliest evidence of hominin presence in Western Europe. The origin of these hominins is unknown, but they may represent a speciation event from Homo ergaster/Homo...

  6. Fluorescence lifetime imaging (Flim): Basic concepts and recent applications

    Suhling, K; Hirvonen, LM; Levitt, JA; Chung, PH; Tregido, C; Marois, AL; Rusakov, DA; Zheng, K; Ameer-Beg, S; Poland, S; Coelho, S; Dimble, R
    ©Springer International Publishing Switzerland 2015.Fluorescence lifetime imaging (FLIM) is a key fluorescence microscopy technique to map the environment and interaction of fluorescent probes. It can report on photo physical events that are difficult or impossible to observe by fluorescence intensity imaging, because FLIM is independent of the local fluorophore concentration and excitation intensity. A FLIM application relevant for biology concerns the identification of FRET to study protein interactions and conformational changes, and FLIM can also be used to image viscosity.

  7. Modal shift of passenger transport in a TIMES model: Application to Ireland and California

    Daly, HE; Ramea, K; Chiodi, A; Yeh, S; Gargiulo, M; Gallachóir, B
    © Springer International Publishing Switzerland 2015.Climate change mitigation clearly requires a focus on transport that should include improved representation of travel behaviour change in addition to increased vehicle efficiency and low-carbon fuels. Energy system models focus however on technology and fuel switching and tend to poorly incorporate travel behaviour. Conversely, transport demand modelling generally fails to address energy and climate policy trade-offs. This chapter seeks to make energy systems analysis more holistic by introducing modal choice within passenger transport in a TIMES model, to allow trade-offs between behaviour and technology choices explicit. Travel demand in TIMES models is typically exogenous-no...

  8. Streptozocin-based chemotherapy: Still a standard of care for neuroendocrine tumours?

    Khalique, S; Meyer, T
    © Springer-Verlag France 2014.Streptozocin (STZ)-based chemotherapy has been used for over 40 years in the treatment for neuroendocrine tumours (NETs); however, there have been few randomized trials, and STZ remains unlicensed in many countries. With the recent approval of sunitinib and everolimus for pancreatic NETs (PNETs), and the emergence of a more stratified approach to cancer therapy, it is timely to reevaluate the role of STZ for NETs. Here, we review the evidence base for STZbased chemotherapy, the toxicity associated with treatment and the position of STZ in the current therapeutic algorithm. Although there are no trials comparing chemotherapy with...

  9. The public impact of impacts: How the media play in the mass extinction debates

    Miller, S
    © 2014 The Geological Society of America. All rights reserved."Mass media" presentations of the dinosaurs and their co-inhabitants have been around for some 200 years. The question of what exterminated the dinosaurs and allowed mammals to take their leading place on Earth has a similarly lengthy history in the scientific arena and in public. However, there are amazingly few communication studies of the debates around mass extinctions and impacts. Those that do exist have picked up on the fact that these debates involve scientists from several disciplines, scientists who are often unused to reading each other's research. Under these circumstances,...

  10. The H+3 latitudinal profile of Saturn

    Stallard, T; Miller, S; Ballester, GE; Rego, D; Joseph, RD; Trafton, LM
    We present an H+3 latitudinal profile of Saturn, obtained in 1998 October using the CSHELL spectrometer on the NASA Infrared Telescope Facility. The profile, measured at 3.953 μm, shows that the majority of the emission is concentrated in the auroral ovals, making Saturn similar to Jupiter and different from Uranus. The spatial resolution is sufficient to resolve the southern auroral oval, currently fully displayed around the south pole, into two peaks separated by 1″.2. At the time of the observations reported here, the emission flux in the H+3 line is 8.3 (± 1.7) × 10-18 W m-2 for the intensity...

  11. Desegmentation of Ozurdex implant in vitreous cavity: report of two cases

    Agrawal, R; Fernandez-Sanz, G; Bala, S; Addison, PKF

  12. Teaching evolution in schools: A matter of controversy?

    Levinson, R
    © 2015 Sense Publishers. All rights reserved.In a clip from YouTube Richard Dawkins says ‘Who cares about creationists? They don’t know anything’. Like Dawkins, I agree that creationism has nothing to offer as an explanation for the origins and diversity of life on this planet. Although I am not a professional biologist everything I have read and heard, including Darwin’s On the origin of species, has so far convinced me that evolution is a fact, and that while there are different explanations to account for evolution none have to date undermined it.

  13. A pedagogic appraisal of the Priority Heuristic

    Pratt, D; Levinson, R; Kent, P; Yogui, C; Kapadia, R
    © FIZ Karlsruhe 2012.We have explored how science and mathematics teachers made decisions when confronted with a dilemma in which a fictitious young woman, Deborah, may choose to have an operation that might address a painful spinal condition. We sought to explore the extent to which psychological heuristic models, in particular the Priority Heuristic, might successfully describe the decision-making process of these teachers and how an analysis of the role of personal and emotional factors in shaping the decisionmaking process might inform pedagogical design. A novel aspect of this study is that the setting in which the decisionmaking process is...

  14. Teaching controversial issues in science

    Levinson, R

  15. Beyond qualified teacher status

    Frost, J; Levinson, R

  16. Teaching controversial socio-scientific issues to gifted and talented students

    Levinson, R

  17. Science education and democratic participation: An uneasy congruence?

    Levinson, R
    Contemporary policy statements from government and reforms to science curricula in schools emphasise the importance of educating a scientifically literate public for democratic participation in science and technology. While such an aspiration is seemingly uncontentious and appears consistent with progressive educational thinking, the reality of democratic participation is problematic. I propose four frameworks for describing democratic participation in schools. The first two - deficit and deliberative democracy - fulfil a limited role for democratic participation. 'Science education as praxis' and 'science education for conflict and dissent' present more radical programmes but reflect tensions with the dominant discourse of scientific literacy...

  18. AWAKE, The Advanced Proton Driven Plasma Wakefield Acceleration Experiment at CERN

    Gschwendtner, E; Adli, E; Amorim, L; Apsimon, R; Assmann, R; Bachmann, AM; Batsch, F; Bauche, J; Berglyd Olsen, VK; Bernardini, M; Bingham, R; Biskup, B; Bohl, T; Bracco, C; Burrows, PN; Burt, G; Buttenschön, B; Butterworth, A; Caldwell, A; Cascella, M; Chevallay, E; Cipiccia, S; Damerau, H; Deacon, L; Dirksen, P; Doebert, S; Dorda, U; Farmer, J; Fedosseev, V; Feldbaumer, E; Fiorito, R; Fonseca, R; Friebel, F; Gorn, AA; Grulke, O; Hansen, J; Hessler, C; Hofle, W; Holloway, J; Hüther, M; Jaroszynski, D; Jensen, L; Jolly, S; Joulaei, A; Kasim, M; Keeble, F; Li, Y; Liu, S; Lopes, N; Lotov, KV; Mandry, S; Martorelli, R; Martyanov, M; Mazzoni, S; Mete, O; Minakov, VA; Mitchell, J; Moody, J; Muggli, P; Najmudin, Z; Norreys, P; Öz, E; Pardons, A; Pepitone, K; Petrenko, A; Plyushchev, G; Pukhov, A; Rieger, K; Ruhl, H; Salveter, F; Savard, N; Schmidt, J; Seryi, A; Shaposhnikova, E; Sheng, ZM; Sherwood, P; Silva, L; Soby, L; Sosedkin, AP
    © 2016 The Authors.The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) aims at studying plasma wakefield generation and electron acceleration driven by proton bunches. It is a proof-of-principle R&D experiment at CERN and the world's first proton driven plasma wakefield acceleration experiment. The AWAKE experiment will be installed in the former CNGS facility and uses the 400. GeV/c proton beam bunches from the SPS. The first experiments will focus on the self-modulation instability of the long (rms ~12. cm) proton bunch in the plasma. These experiments are planned for the end of 2016. Later, in 2017/2018, low energy (~15....

  19. Mild in situ growth of platinum nanoparticles on multiwalled carbon nanotube-poly (vinyl alcohol) hydrogel electrode for glucose electrochemical oxidation

    Liu, S; Zheng, Y; Qiao, K; Su, L; Sanghera, A; Song, W; Yue, L; Sun, Y

  20. Discussing Controversial Issues in the Classroom

    Hand, M; Levinson, R
    Discussion is widely held to be the pedagogical approach most appropriate to the exploration of controversial issues in the classroom, but surprisingly little attention has been given to the questions of why it is the preferred approach and how best to facilitate it. Here we address ourselves to both questions. We begin by clarifying the concept of discussion and justifying it as an approach to the teaching of controversial issues. We then report on a recent empirical study of the Perspectives on Science AS-level course, focusing on what it revealed about aids and impediments to discussion of controversial ethical issues....

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