Between Battlefield and Play: Art and Aesthetics in Visual Culture

Mona Hatoum\u27s video installation Corps étranger is an example of an artwork that critically comments on particular aspects of contemporary visual culture, such as the colonization of the body\u27s interior by medical image technologies. It has indeed been interpreted in those terms by several authors from within the new academic field of Visual Culture. Here it is argued that the critical cultural impact of the installation might be more fully described when one grants art a relative autonomy within the cultural field and, moreover, draws on concepts from more traditional academic disciplines and approaches, such as aesthetics and phenomenology. Art is a cultural practice that is deeply involved in contemporary life and its hierarchies and differences, but that, nevertheless, can be critical by generating new experiences. I would like to describe this relative autonomy with the help of the concepts of play and of aesthetic reflexivity

A Comparative Case Method for Local Molar Program Evaluation and Adjustment

In program monitoring, social policy researchers often use multiple case methods of analysis, comparing cases with low and high impact. In view of the low observer reliability of case analysis, a standard analytical approach is recommended. The article discusses three conceptual models of program implementation that provide valid standardization of program evaluation and adjustment

Documentando dilemas. Sobre la relevancia de los casos éticamente ambiguos

This paper argues that documentation best serves the conservation of contemporary art when it does not only collect and record information about the work, but also the dilemmas conservators have felt themselves confronted with when deciding their conservation strategy. The reason is that in the last two decades, in and through evolving and reflective practice, a situation has arisen in which new ethical paradigms are emerging, appropriate for different types of work and different logics of perpetuation. The paper outlines three different paradigms with corresponding paradigmatic cases, arguing that only a case-by-case method of ethical deliberation (casuist ethics) will help articulating the appropriate principles and guidelines for the newer paradigms. Documentation of conservation-ethical dilemmas is needed to enable this deliberation. Moreover, most cases will remain rather messy, many artworks consisting of heterogeneous assemblages of objects, ideas and practices that all imply their own logic of perpetuation, other artworks hovering between logics, or passing from one logic to another in the course of their biographies. Therefore the documentation of dilemmas will continue to be required to facilitate a casuist approach to taking responsible decisions and developing a body of professional experience.Este artículo sostiene que la documentación proporciona un mejor servicio a la conservación de arte contemporáneo cuando no solo recopila y registra información sobre las obras, sino que también recoge los dilemas a los que los conservadores han tenido que enfrentarse al tomar decisiones sobre sus estrategias de conservación. La razón es que, en las últimas dos décadas, una práctica cada vez más reflexiva ha favorecido una situación en la que están emergiendo nuevos paradigmas éticos que sirven para diferentes tipos de trabajos artísticos y sus diferentes lógicas de perpetuación. El artículo propone tres paradigmas diferentes con sus correspondientes casos paradigmáticos, argumentando que solo un método de deliberación ética “caso-a-caso” (ética casuística) servirá para articular una serie de principios y directrices adecuados a los más recientes paradigmas. Para posibilitar esta deliberación, se hace necesario documentar los dilemas éticos en la conservación. Además, la mayoría de los casos resultarán bastante conflictivos, dado que muchas obras de arte consisten en la unión heterogénea de objetos, ideas y prácticas, con sus propias lógicas diferenciadas de perpetuación, mientras otras se mueven entre distintas lógicas, o pasan de una lógica a otra en el transcurso de sus biografías. Por tanto, la documentación de los dilemas continuará siendo necesaria para facilitar un acercamiento casuístico a la hora de tomar decisiones con responsabilidad y desarrollar un cuerpo de experiencia profesional

A new key locality for the Pliocene vertebrate record of Europe : the Camp dels Ninots maar (NE Spain)

A new Pliocene Konservat-Lagerstätte in north-eastern Spain is described here for the first time. It is referred to as Camp dels Ninots. The particular geological conditions of the site, which correspond to lacustrine sedimentation in a maar, made it ideal for the preservation of fossils. At present, five large mammal skeletons in anatomical connection have been recovered: three individuals of Alephis tigneresi, one of Stephanorhinus jeanvireti and one of Tapirus arvernenis, as well as isolated remains. A minimum of five individuals of the chelonian Mauremys leprosa have been recovered, some of them in anatomical connection. The rodent Apodemus atavus, the amphibians cf. Pleurodeles sp., Lissotriton aff. helveticus and Pelophylax cf. perezi and freshwater fishes (Leuciscus ?) complete the vertebrate assemblage uncovered up to the present time. The coexistence of Stephanorhinus jeanvireti and Alephis tigneresi suggests an age of about 3.2Ma for the Camp dels Ninots, near the MN15-MN16 transition. The Camp del Ninots fossil record enables one to extend the biogeographic range of some vertebrate taxa, such as Stephanorhinus jeanvireti, Tapirus arvernensis or Mauremys leprosa to the Iberian Peninsula. Taphonomic evidences of the skeletal remains indicates minimal (if any) weathering. Deposition at the lake bottom seems to have taken place in oxygen depleted layers. In this way, Camp dels Ninots is comparable to other remarkable maar sites such as Messel, the Eocene site situated in Germany

From transformation to chronification of migraine : pathophysiological and clinical aspects

Chronic migraine is a neurological disorder characterized by 15 or more headache days per month of which at least 8 days show typical migraine features. The process that describes the development from episodic migraine into chronic migraine is commonly referred to as migraine transformation or chronification. Ample studies have attempted to identify factors associated with migraine transformation from different perspectives. Understanding CM as a pathological brain state with trigeminovascular participation where biological changes occur, we have completed a comprehensive review on the clinical, epidemiological, genetic, molecular, structural, functional, physiological and preclinical evidence available

De Plenderleith a Al Gore: o ideário vigente na conservação de bens culturais móveis no século XXI

O texto discute idéias predominantes, hoje, nas práticas de conservação de bens culturais móveis no Ocidente. São apontadas, também, algumas tendências de pensamento em diferentes contextos de trabalho, identificando-se eventuais mudanças e semelhanças entre as idéias anteriormente vigentes e aquelas que muito provavelmente sejam, já, um legado para este novo século.This article discusses the prevailing concepts referring to the conservation of cultural heritage collections. Some trends such as some lines of thought are also indicated, identifying occasional changes and similarities among the ideas previously in force and those that, probably, are already a legacy for this new century

The Clacton Spear: the last one hundred years

In 1911 an eminent amateur prehistorian pulled the broken end of a pointed wooden shaft from Palaeolithic-age sediments at a seaside town in Essex. This artefact, still the earliest worked wood to be discovered in the world, became known as the Clacton Spear. Over the past 100 years it has variously been interpreted as a projectile weapon, a stave, a digging stick, a snow probe, a lance, a game stake and a prod to ward off rival scavengers. These perspectives have followed academic fashions, as the popular views of early hominins have altered. Since discovery the Clacton spear has also been replicated twice, has undergone physical transformations due to preservation treatments, and has featured in two public exhibitions. Within this article the changing context of the spear, its parallels, and all previous conservation treatments and their impacts are assessed.© 2015 Royal Archaeological Institute. This is an Accepted Manuscript of an article published by Taylor & Francis in The Archaeological Journal on 3rd March 2015, available online: http://www.tandfonline.com/doi.org/10.1080/00665983.2015.1008839.The attached document is the author(’s’) final accepted/submitted version of the journal article. You are advised to consult the publisher’s version if you wish to cite from it

Sensitivity of L-band vegetation optical depth to carbon stocks in tropical forests: a comparison to higher frequencies and optical indices

Supplementary data to this article can be found online at https://doi.org/10.1016/j.rse.2019.111303.Monitoring vegetation carbon in tropical regions is essential to the global carbon assessment and to evaluate the actions oriented to the reduction of forest degradation. Mainly, satellite optical vegetation indices and LiDAR data have been used to this purpose. These two techniques are limited by cloud cover and are sensitive only to the top of vegetation. In addition, the vegetation attenuation to the soil microwave emission, represented by the vegetation optical depth (VOD), has been applied for biomass estimation using frequencies ranging from 4 to 30¿GHz (C- to K-bands). Atmosphere is transparent to microwaves and their sensitivity to canopy layers depends on the frequency, with lower frequencies having greater penetration depths. In this regard, L-band VOD (1.4¿GHz) is expected to enhance the ability to estimate carbon stocks. This study compares the sensitivity of different VOD products (from L, C, and X-bands) and an optical vegetation index (EVI) to the above-ground carbon density (ACD). It quantifies the contribution of ACD and forest cover proportion to the VOD/EVI signals. The study is conducted in Peru, southern Colombia and Panama, where ACD maps have been derived from airborne LiDAR. Results confirm the enhanced sensitivity of L-band VOD to ACD when compared to higher frequency bands, and show that the sensitivity of all VOD bands decreases in the densest forests. ACD explains 34% and forest cover 30% of L-band VOD variance, and these proportions gradually decrease for EVI, C-, and X-band VOD, respectively. Results are consistent through different categories of altitude and carbon density. This pattern is found in most of the studied regions and in flooded forests. Results also show that C-, X-band VOD and EVI provide complementary information to L-band VOD, especially in flooded forests and in mountains, indicating that synergistic approaches could lead to improved retrievals in these regions. Although the assessment of vegetation carbon in the densest forests requires further research, results from this study support the use of new L-band VOD estimates for mapping the carbon of tropical forests.Peer ReviewedPostprint (author's final draft

Prospective individual patient data meta-analysis of two randomized trials on convalescent plasma for COVID-19 outpatients

Data on convalescent plasma (CP) treatment in COVID-19 outpatients are scarce. We aimed to assess whether CP administered during the first week of symptoms reduced the disease progression or risk of hospitalization of outpatients. Two multicenter, double-blind randomized trials (NCT04621123, NCT04589949) were merged with data pooling starting when = 50 years and symptomatic for <= 7days were included. The intervention consisted of 200-300mL of CP with a predefined minimum level of antibodies. Primary endpoints were a 5-point disease severity scale and a composite of hospitalization or death by 28 days. Amongst the 797 patients included, 390 received CP and 392 placebo; they had a median age of 58 years, 1 comorbidity, 5 days symptoms and 93% had negative IgG antibody-test. Seventy-four patients were hospitalized, 6 required mechanical ventilation and 3 died. The odds ratio (OR) of CP for improved disease severity scale was 0.936 (credible interval (CI) 0.667-1.311); OR for hospitalization or death was 0.919 (CI 0.592-1.416). CP effect on hospital admission or death was largest in patients with <= 5 days of symptoms (OR 0.658, 95%CI 0.394-1.085). CP did not decrease the time to full symptom resolution