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UCL University College London Eprints (406.924 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 181 - 200 de 52.747

  1. Decompression sickness ('the bends') in sea turtles

    Garcia-Parraga, D; Crespo-Picazo, JL; Bernaldo de Quiros, Y; Cervera, V; Marti-Bonmati, L; Diaz-Delgado, J; Arbelo, M; Moore, MJ; Jepson, PD; Fernandez, A
    Decompression sickness (DCS), as clinically diagnosed by reversal of symptoms with recompression, has never been reported in aquatic breath-hold diving vertebrates despite the occurrence of tissue gas tensions sufficient for bubble formation and injury in terrestrial animals. Similarly to diving mammals, sea turtles manage gas exchange and decompression through anatomical, physiological, and behavioral adaptations. In the former group, DCS-like lesions have been observed on necropsies following behavioral disturbance such as high-powered acoustic sources (e.g. active sonar) and in bycaught animals. In sea turtles, in spite of abundant literature on diving physiology and bycatch interference, this is the first report of...

  2. ‘And those who live, how shall I tell their fame?’ Historical pageants, collective remembrance and the First World War, 1919-1939

    Bartie, A; Fleming, L; Freeman, M; Hulme, T; Readman, P; Tupman, C

  3. Induced Technical Change in Energy and Environmental Modeling: Analytic Approaches and Policy Implications

    Grubb, M; Köhler, J; Anderson, D
    Technical change in the energy sector is central for addressing long- term environmental issues, including climate change. Most models of energy, econ- omy, and the environment (E3 models) use exogenous assumptions for this. This is an important weakness. We show that there is strong evidence that technical change in the energy sector is to an important degree induced by market circumstances and expectations and, by implication, by environmental policies such as CO2 abate- ment. We classify the main approaches to modeling such induced technical change and review results with particular reference to climate change. Among models with learning by doing,...

  4. An integrative study of temperature dependence of whole animal and muscle performance during jumping and swimming in the frog Rana temporaria

    Navas, CA; James, RS; Wakeling, JM; Kemp, KM; Johnston, IA
    The aims of this study were: (1) to analyze individual variation in frog locomotor performance, (2) to compare the thermal sensitivity of jumping and swimming, and (3) to contrast whole animal versus muscle fiber performance at different temperatures. The jumping and swimming performance of Rana temporaria was analyzed at 5, 10, 15 and 20 °C. Muscle fiber bundles were isolated from lateral gastrocnemius and subjected to the length and activation patterns thought to occur in vivo. As temperature increased, locomotor performance in R. temporaria improved with a Q10 of 1.2 for both jump take-off velocity and mean swimming velocity. The slope of the...

  5. The biomechanics and evolutionary significance of thermal acclimation in the common carp Cyprinus carpio

    Wakeling, JM; Cole, NJ; Kemp, KM; Johnston, IA
    The effects of thermal acclimation were investigated in the common carp Cyprinus carpio L. Acclimation and acute temperature effects were tested during ontogeny from larval [9.5 mm total length (L)] to juvenile (69.0 mm L) stages and between 8 and 21 degrees C. The myosin heavy chain (MHC) composition, myofibrillar Mg(2+)-Ca(2+)-ATPase activity, and muscle strains showed significant thermal acclimation effects. MHCs were only expressed in an acclimation temperature-dependent fashion in fish longer than 37 mm. During fast starts, the temperature had a significant effect on the white muscle strain (33% increase and 50% decrease with increasing acclimation and acute temperature,...

  6. Consumption of large bathyal food fall, a six month study in the NE Atlantic

    Kemp, KM; Jamieson, AJ; Bagley, PM; McGrath, H; Bailey, DM; Collins, MA; Priede, IG
    We deployed 2 porpoise (Phocoena phocoena) carcasses at bathyal depth (2555 to 2710 m) in the Porcupine Seabight, NE Atlantic for periods of 1 wk and 6 mo respectively. Consumption rates of 0.085 and 0.078 kg h–1 were similar to those observed at abyssal depths in the Atlantic, and 1 order of magnitude slower than at bathyal depth in the Pacific. A distinct succession of scavenging species was observed at both carcasses: the abyssal grenadier Coryphaenoides armatus and the cusk eel Spectrunculus grandis numerically dominated the initial phase of carcass consumption and, once the bulk of the soft tissue had...

  7. Rhythms at the bottom of the deep sea: Cyclic current flow changes and melatonin patterns in two species of demersal fish

    Kemp, K
    We have studied physical and biological rhythms in the deep demersal habitat of the Northeastern Atlantic. Current velocity and direction changes occurred at intervals of 12.4 h, demonstrating that they could have an impact of tidal activity, and also showed indications of other seasonal changes. As an indicator of biological rhythms, we measured the content of pineal and retinal melatonin in the grenadier Coryphaenoides armatus and the deep-sea eel Synaphobranchus kaupii, and determined the spontaneous release of melatonin in long-term (52 h minimum) cultures of isolated pineal organs and retinae in S. kaupii. The results of the release experiments show...

  8. A live video observatory reveals temporal processes at a shelf-depth whale-fall

    Kemp, K
    There have been very few studies of temporal processes at chemosynthetic ecosystems, even at relatively more accessible shallow water sites. Here we report the development and deployment of a simple cabled video observatory at ≈ 30 m water depth in Gullmarsfjorden, Sweden. The camera provides a live video feed to the internet of faunal activity at the experiments, which to date have included 5 separate whale-fall deployments. Our data suggest that the time to decomposition of small cetacean carcasses at shelf-depth settings is considerably slower than at deep-sea sites. We have also provided a new methodology for the deployment of low-cost live video observatories at...

  9. Legality of Attacks Against Human Shields in Armed Conflict

    Hovsepyan, Eduard
    The numerous examples of the use of human shields in armed conflicts display the contemporaneity of the problem discussed in this article and the need for a recipe to effectively combat the continuing commission of this war crime. In spite of the fact that an absolute prohibition on the use of human shields in international armed conflicts exists, as enshrined in the Geneva Conventions of 1949 and Additional Protocol I, consequences of unlawful resort to human shields remain inconsistent. Thus, the present article will determine when and under what circumstances attacks carried out against human shields are lawful, and which...

  10. The Protection of the Right to Strike under the European Convention on Human Rights

    Stylogiannis, Charalampos
    The right to strike has been largely acknowledged as an indispensable element of collective bargaining, and as one of the most essential means by which workers can preserve their socio-economic rights. It is safeguarded by international and European human rights instruments, and is enshrined in a number of states’ constitutions, including several parties to the European Convention on Human Rights (‘ECHR’). Within the legal framework of the ECHR, in the seminal cases of Demir and Baykara v Turkey and Enerji v Turkey the European Court of Human Rights (‘ECtHR’ or 'the Court') acknowledged the significance of both the right to...

  11. Electoral Libels: A Comparative Study of the English and Ecuadorian Law of Defamation

    Andrade, Roberto
    English and Ecuadorian defamation law have developed very different mechanisms to resolve the tension between the right to freedom of speech and the protection of private life. Ordinarily this would not be too surprising, insofar as it is natural that different countries will have different legal institutions. However, this divergence becomes relevant because both jurisdictions claim to be bound by virtually the same human rights obligations when it comes to speech related to matters of public interest. For this reason, this article focuses on speech issued during electoral campaigns—perhaps the best example of public interest speech—in order to assess how...

  12. Applying Dworkin’s Legal Philosophy contra Islamist Ideology: Sharī‘ah as a Matter of Interpretation (Ijtihād) and Ethics (ilm al-akhlāq)

    Swazo, Norman K
    Observers of contemporary politics know that Islamic extremism presents ‘the West’ with a serious challenge of national and international security consequent to terrorist events of recent time. In addition to constabulary and military responses, there remains the more fundamental question about how to understand Islamist ideology and how counter-narratives might be framed in the interest of law and morality, especially in Muslim-minority nation-states. One of the central problems with Islamist ideology is a narrow and dogmatic conception of Islamic law. Tariq Ramadan is an example of a contemporary Islamic scholar concerned with Islamic reform. Ronald Dworkin is among the most...

  13. The Legal Measures against the Abuse of Separate Corporate Personality and Limited Liability by Corporate Groups: The scope of Chandler v Cape plc and Thompson v Renwick Group plc

    Ikuta, Daisuke
    While the scope of ‘veil lifting’ has been severely restricted in UK case law, two recent notable judgments, Chandler v Cape Plc and Thompson v Renwick Group Plc, have held that a parent company could owe tortious liability for the health and safety of its subsidiary’s employees. This article contends that the legal principle recognised in Chandler and Thompson could successfully prevent corporate group abuses of separate corporate personality and limited liability, when combined with ‘veil lifting’ and protection against misrepresentation in UK law. With reference to the theoretical justification of limited liability, there are three circumstances in which limited...

  14. The Recast European Insolvency Regulation: A Missed Opportunity for Restructuring Business in Europe

    Epeoglou, Maria-Thomais
    The purpose of this article is to critically revisit the European Insolvency Regulation on the occasion of its recasting, in Regulation (EU) 2015/848, which enters into force, for the most part, in June 2017. The article first considers the circumstances underlying the Regulation’s adoption, highlighting the fact that a new approach to business failure has been an indispensable part of the EU’s response to the financial crisis, thus placing business rescue on the agenda. An endeavour to examine provisions purportedly targeted at creating a business rescue-friendly culture follows, including an attempt at an early appraisal of whether this objective will...

  15. An Economic Analysis of the Liability of Credit Rating Agencies: A Positive Inquiry from a Kaldor-Hicks Efficiency Perspective

    Yee, Julius Sher Xern
    The liability of credit rating agencies (‘CRAs’) has been subject to critical debate since the global financial crisis of 2008. It has been well documented and argued that the rules governing such impositions have been traditionally framed by reactionary, post-crisis driven reforms which do not necessarily reflect, or capture, in economic terms, the consequentialist aspects of whether they are beneficial to the welfare of wider market participants. This article attempts to highlight, through economic analysis, some of these wider market repercussions, and will aim to do so by providing an analysis of liability rules from a Kaldor-Hicks efficiency perspective. It...

  16. Preface

    Viveros Montoya, Luis Felipe; Pavlopoulos, Niko; Crummey, Conor
    Preface to Volume 6, Issue 1 of the UCL Journal of Law and Jurisprudence.

  17. Foreword

    Daniela, Simone

  18. Multicenter, Phase III, Randomized, Double-Blind, Placebo-Controlled Trial of Pravastatin Added to First-Line Standard Chemotherapy in Small-Cell Lung Cancer (LUNGSTAR).

    Seckl, MJ; Ottensmeier, CH; Cullen, M; Schmid, P; Ngai, Y; Muthukumar, D; Thompson, J; Harden, S; Middleton, G; Fife, KM; Crosse, B; Taylor, P; Nash, S; Hackshaw, A
    Purpose Treating small-cell lung cancer (SCLC) remains a therapeutic challenge. Experimental studies show that statins exert additive effects with agents, such as cisplatin, to impair tumor growth, and observational studies suggest that statins combined with anticancer therapies delay relapse and prolong life in several cancer types. To our knowledge, we report the first large, randomized, placebo-controlled, double-blind trial of a statin with standard-of-care for patients with cancer, specifically SCLC. Patients and Methods Patients with confirmed SCLC (limited or extensive disease) and performance status 0 to 3 were randomly assigned to receive daily pravastatin 40 mg or placebo, combined with up...

  19. Zoology: War of the Worms

    Telford, MJ; Copley, RR
    The phylogenetic affinities of Xenacoelomorpha - the phylum comprising Xenoturbella bocki and acoelomorph worms - are debated. Two recent studies conclude they represent the earliest branching bilaterally symmetrical animals, but additional tests may be needed to confirm this notion.

  20. Clinical failure is more common in young children with acute otitis media who receive a short course of antibiotics compared with standard duration

    Venekamp, RP; Schilder, AGM

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