Variaciones de lo figural: El pensamiento plástico de Jean Epstein,Stephen Dwoskin y Philippe Grandrieux

En Discurso,Figura, Jean François Lyotard acuña un término: “figural”, que teóricos como Nicole Brenez y Philippe Dubois han llevado al terreno del análisis de la imagen cinematográfica. El pensamiento figural hace de la materialidad de la imagen, de su plasticidad, su objeto de estudio privilegiado. Los cineastas Jean Epstein, Philippe Grandrieux o Stephen Dwoskin en sus figuraciones fílmicas del cuerpo y del rostro, pero también en sus reflexiones teóricas sobre el cine en forma de artículos o, incluso, documentos directamente asociados al rodaje como su registro filmado, han erigido un espacio privilegiado en que este concepto de lo figural se despliega en múltiples variaciones.

A marxian model of the breakdown of capitalism

This paper sets out a Marxian model that is based on the one by Stephen Marglin with one sector and continuous substitution. It is extended by adding technical progress and land as a factor of production. It is then shown that capital accumulation causes the preconditions for the breakdown of capitalism to emerge; that is, it causes the organic composition of capital to rise, the rate of profit to fall and the rate of exploitation to rise. A compressed history of the idea of the breakdown of capitalism is then set out and an explanation is given as to how the model relates to this and how it may serve as the basis for further research.

Del paper a la pantalla: (adaptació d'una novel·la a guió cinematogràfic

L’adaptació de la novel·la “La noia que estimava Tom Gordon”, de Stephen King en guió cinemetogràfic ha servit de punt de partida per estudiar tots els elements implicats en el procés. Aquests inclouen el procediment ha seguir i aspectes tècnics relacionats com com ara l'story board o la banda sonora. En una segona part s’explica com s’ha treballat la novel·la esmentada per tal de convertir-la en guió. Finalment s’adjunta el propi guió.

Aigua, agricultura i regadiu a la Catalunya contemporània, 1800-2010

L‟objectiu d‟aquest article és mostrar quina ha estat l‟evolució i les característiques del regadiu a Catalunya entre mitjan segle XIX i principis del segle XXI. Per portar-ho a terme, a més d‟aquesta introducció, el text s‟estructura en quatre seccions. En la primera s‟expliquen quines havien estat les principals respostes de l‟agricultura tradicional a les disponibilitats d‟aigua i es destaca el paper que va tenir el regadiu. En la segona s‟analitzen els principis, les planificacions i els programes de foment del regadiu sorgits de la política hidràulica implementada per l‟estat espanyol entre finals del segle XIX i la dictadura franquista. En la tercera es destaca el protagonisme de la gran hidràulica i es mostra l‟evolució del regadiu i de la capacitat d‟embassament a Catalunya. Finalment, en la quarta secció, es realitza un balanç de la política de grans obres hidràuliques que ha imperat durant el segles XIX i XX i es destaca l‟emergència del nou paradigma hidràulic de la nova cultura de l‟aigua.

Guerra, pàtria i estadística: el despertar polític dels hisendats gironins (1795-1800)

Sobre l'emergència i presa de consciència d'una classe dirigent a la societat gironina de finals del segle XVIII

Improving gene annotation using peptide mass spectrometry

Annotation of protein-coding genes is a key goal of genome sequencing projects. In spite of tremendous recent advances in computational gene finding, comprehensive annotation remains a challenge. Peptide mass spectrometry is a powerful tool for researching the dynamic proteome and suggests an attractive approach to discover and validate protein-coding genes. We present algorithms to construct and efficiently search spectra against a genomic database, with no prior knowledge of encoded proteins. By searching a corpus of 18.5 million tandem mass spectra (MS/MS) from human proteomic samples, we validate 39,000 exons and 11,000 introns at the level of translation. We present translation-level evidence for novel or extended exons in 16 genes, confirm translation of 224 hypothetical proteins, and discover or confirm over 40 alternative splicing events. Polymorphisms are efficiently encoded in our database, allowing us to observe variant alleles for 308 coding SNPs. Finally, we demonstrate the use of mass spectrometry to improve automated gene prediction, adding 800 correct exons to our predictions using a simple rescoring strategy. Our results demonstrate that proteomic profiling should play a role in any genome sequencing project.

Genetic and genomic analysis modeling of germline c-MYC overexpression and cancer susceptibility

Background: Germline genetic variation is associated with the differential expression of many human genes. The phenotypic effects of this type of variation may be important when considering susceptibility to common genetic diseases. Three regions at 8q24 have recently been identified to independently confer risk of prostate cancer. Variation at 8q24 has also recently been associated with risk of breast and colorectal cancer. However, none of the risk variants map at or relatively close to known genes, with c-MYC mapping a few hundred kilobases distally. Results: This study identifies cis-regulators of germline c-MYC expression in immortalized lymphocytes of HapMap individuals. Quantitative analysis of c-MYC expression in normal prostate tissues suggests an association between overexpression and variants in Region 1 of prostate cancer risk. Somatic c-MYC overexpression correlates with prostate cancer progression and more aggressive tumor forms, which was also a pathological variable associated with Region 1. Expression profiling analysis and modeling of transcriptional regulatory networks predicts a functional association between MYC and the prostate tumor suppressor KLF6. Analysis of MYC/Myc-driven cell transformation and tumorigenesis substantiates a model in which MYC overexpression promotes transformation by down-regulating KLF6. In this model, a feedback loop through E-cadherin down-regulation causes further transactivation of c-MYC.Conclusion: This study proposes that variation at putative 8q24 cis-regulator(s) of transcription can significantly alter germline c-MYC expression levels and, thus, contribute to prostate cancer susceptibility by down-regulating the prostate tumor suppressor KLF6 gene.

Les fabricacions periodístiques del segle XX: contribució a la definició del concepte de veracitat de la informació

El concepte de veracitat és un terme que genera consens entre els estudiosos del’ètica periodística, entre els mateixos periodistes i entre l’audiència perquè hi ha una càrrega simbòlica molt important. En aquest sentit, la veracitat està molt vinculada amb la praxis periodística. El seu discurs es formula des de l’ètica i es posiciona com una valor absolut. No hiha periodisme sense veritat. Tot i amb això, aquest principi es transgredit per periodistes que s’inventen o fabriquen una història i la presenten com a verídica. Coneguts són els casos de Janet Cooke, Stephen Glass o Jayson Blair. La descoberta d’aquestes invencions ha provocatun intens debat entre els professionals de la comunicació, però quina ha estat la sevacontribució en la definició del concepte de veracitat?

First impressions matter: Signalling as a source of policy dynamics

We first establish that policymakers on the Bank of England's Monetary PolicyCommittee choose lower interest rates with experience. We then reject increasingconfidence in private information or learning about the structure of the macroeconomy as explanations for this shift. Instead, a model in which voters signal theirhawkishness to observers better fits the data. The motivation for signalling is consistent with wanting to control inflation expectations, but not career concerns orpleasing colleagues. There is also no evidence of capture by industry. The papersuggests that policy-motivated reputation building may be important for explainingdynamics in experts' policy choices.

What do outside experts bring to a committee? Evidence from the Bank of England

We test whether outside experts have information not available to insiders by usingthe voting record of the Bank of England's Monetary Policy Committee. Memberswith more private information should vote more often against conventional wisdom,which we measure as the average belief of market economists about future interest rates. We find evidence that external members indeed have information notavailable to internals, but also use a quasi-natural experiment to show they mayexaggerate their expertise to obtain reappointment. This implies that an optimalcommittee, even outside monetary policy, should potentially include outsiders, butneeds to manage career concerns.

Estimating Bayesian decision problems with heterogeneous priors

In many areas of economics there is a growing interest in how expertise andpreferences drive individual and group decision making under uncertainty. Increasingly, we wish to estimate such models to quantify which of these drive decisionmaking. In this paper we propose a new channel through which we can empirically identify expertise and preference parameters by using variation in decisionsover heterogeneous priors. Relative to existing estimation approaches, our \Prior-Based Identification" extends the possible environments which can be estimated,and also substantially improves the accuracy and precision of estimates in thoseenvironments which can be estimated using existing methods.

The benefits of limited feedback in organizations

In most firms, managers periodically assess workers' performance. Evidence suggeststhat managers withhold information during these reviews, and some observersargue that this necessarily reduces surplus. This paper assesses the validity of thisargument when workers have career concerns. Disclosure has two effects: it exposesthe worker to uncertainty about future effort levels, but allows him to use current effortto influence his employer's beliefs about future effort. The surplus-maximizingdisclosure policy reveals output realizations in the center of the distribution, butnot in the tails. Thus, it is efficient for firms to reveal some but not all performanceinformation.

Effects of differential taxation on factor accumulation and growth

In this paper we try to analyze the role of fiscal policy in fostering a higher participation of the different production factors in the human capital production sector in the long-run. Introducing a tax on physical capital and differentiating both a tax on raw labor wage and a tax on skills or human capital we also attempt to present a way to influence inequality as measured by the skill premium, thus trying to relate the increase in human capital with the decrease in income inequality. We will do that in the context of a non-scale growth model.The model here is capable to alter the shares of private factors devoted to each of the two production sectors, final output and human capital, and affect inequality in a different way according to the different tax changes. The simulation results derived in the paper show how a human capital (skills) tax cut, which could be interpreted as a reduction in progressivity, ends up increasing both the shares of labor and physical capital devoted to the production of knowledge and decreasing inequality. Moreover, a raw labor wage tax decrease, which could also be interpreted as an increase in the progressivity of the system, increases the share of labor devoted to the production of final output and increases inequality. Finally, a physical capital tax decrease reduces the share of physical capital devoted to the production of knowledge and allows for a lower inequality value. Nevertheless, none of the various types of taxes ends up changing the share of human capital in the knowledge production, which will deserve our future attention

Tax reforms and inequality: theoretical and empirical implications

In this paper we examine the effect of tax policy on the relationship between inequality and growth in a two-sector non-scale model. With non-scale models, the longrun equilibrium growth rate is determined by technological parameters and it is independent of macroeconomic policy instruments. However, this fact does not imply that fiscal policy is unimportant for long-run economic performance. It indeed has important effects on the different levels of key economic variables such as per capita stock of capital and output. Hence, although the economy grows at the same rate across steady states, the bases for economic growth may be different.The model has three essential features. First, we explicitly model skill accumulation, second, we introduce government finance into the production function, and we introduce an income tax to mirror the fiscal events of the 1980¿s and 1990¿s in the US. The fact that the non-scale model is associated with higher order dynamics enables it to replicate the distinctly non-linear nature of inequality in the US with relative ease. The results derived in this paper attract attention to the fact that the non-scale growth model does not only fit the US data well for the long-run (Jones, 1995b) but also that it possesses unique abilities in explaining short term fluctuations of the economy. It is shown that during transition the response of the relative simulated wage to changes in the tax code is rather non-monotonic, quite in accordance to the US inequality pattern in the 1980¿s and early 1990¿s.More specifically, we have analyzed in detail the dynamics following the simulation of an isolated tax decrease and an isolated tax increase. So, after a tax decrease the skill premium follows a lower trajectory than the one it would follow without a tax decrease. Hence we are able to reduce inequality for several periods after the fiscal shock. On the contrary, following a tax increase, the evolution of the skill premium remains above the trajectory carried on by the skill premium under a situation with no tax increase. Consequently, a tax increase would imply a higher level of inequality in the economy