Brown representability follows from Rosicky

We prove that the dual of a well generated triangulated category satisfies Brown representability, as long as there is a combinatorial model. This settles the major open problem in [13]. We also prove that Brown representability holds for non-dualized well generated categories, but that only amounts to the fourth known proof of the fact. The proof depends crucially on a new result of Rosicky [14].

Brown representability does not come for free

"Vegeu el resum a l'inici del document del fitxer adjunt."

El teatre a les societats particulars de Barcelona durant els anys de la Primera Guerra Mundial (1914-1918). El CADCI i l’Ateneu Obrer del districte II

Aquest treball és una primera aproximació al magmàtic món del teatre societari barceloní de principis de segle XX. Vol ser una radiografia, primer, en forma d’estat de la qüestió general, i després, en forma d’anàlisi de dos casos concrets, el CADCI i l’Ateneu Obrer del districte II, de tots els aspectes que engloba el fet teatral en aquests espais: des dels repertoris al funcionament de les companyies, passant per la recepció, el paper del públic o la importància del teatre com a eina política i de transmissió generacional del coneixement. Tot això en el context d’uns anys de crisi del món teatral, en general, i del teatre català, en particular.

The role of Mexico in the first oil shortage: 1918-1922, an international perspective

In 1921 Mexico produced a quarter of world s petroleum, making the country the secondlargest producer in the world, but by 1930 it only accounted for 3 per cent of world sproduction. To date the discussion has mostly relied on events taking place in Mexico forexplaining the decline of the industry. Very little attention has been placed todevelopments in petroleum industry elsewhere, except Venezuela. Practically noattention has been paid to the reasons for the rise of oil output in Mexico. This neglectsthe massive changes taking place in the petroleum industry worldwide during the GreatWar years and its aftermath, and overall ignores the shortage of oil that occurred in theworld s markets between 1918-1921. These are crucial events in order to understand theearly rise of the Mexican oil industry and set the basis for a better understanding of thesubsequent sudden decline.

[Feminismos del siglo XXI] Mary Nash

Mary Nash, entrevistada por Núria Benach, recorre su trayectoria de investigación desde sus inicios hasta la incorporación a sus estudios de una perspectiva multicultural y de género. Empezó a trabajar sobre la "Historia de las mujeres" en el ámbito de la Guerra Civil y la Segunda República, con el objetivo de visualizar la acción de las mujeres y reconstruir la memoria histórica olvidad. En los años 70 esta perspectiva no tenía aún un reconocimiento académico y menos aún, social. Más adelante, entre los 80 y 90, Nash empezó a trabajar sobre el impacto de los flujos migratorios en Occidente. Así, expone la necesidad de unos derechos de las mujeres dependiendo del contexto social de cada cultura, pero acepta la existencia de unos límites que no se pueden transgredir bajo ningún concepto multicultural.

[Feminismos del siglo XXI] Mary Nash

Mary Nash, entrevistada por Núria Benach, recorre su trayectoria de investigación desde sus inicios hasta la incorporación a sus estudios de una perspectiva multicultural y de género. Empezó a trabajar sobre la "Historia de las mujeres" en el ámbito de la Guerra Civil y la Segunda República, con el objetivo de visualizar la acción de las mujeres y reconstruir la memoria histórica olvidad. En los años 70 esta perspectiva no tenía aún un reconocimiento académico y menos aún, social. Más adelante, entre los 80 y 90, Nash empezó a trabajar sobre el impacto de los flujos migratorios en Occidente. Así, expone la necesidad de unos derechos de las mujeres dependiendo del contexto social de cada cultura, pero acepta la existencia de unos límites que no se pueden transgredir bajo ningún concepto multicultural.

Evaluation of a revision of the BSPcast decision support system for control of brown spot of pear

Control of brown spot of pear requires fungicide treatments of pear trees during the growing season. Scheduling fungicide sprays with the Brown spot of pear forecasting system (BSPcast) provides significantfungicide savings but does not increase the efficacy of disease control. Modifications in BSPcast wereintroduced in order to increase system performance. The changes consisted of: (1) the use of a daily infectionrisk (Rm≥0.2) instead of the 3-day cumulative risk (CR≥0.4) to guide the fungicide scheduling, and (2) theinclusion of the effect of relative humidity during interrupted wetness periods. Trials were performed during2 years in an experimental pear orchard in Spain. The modifications introduced did not result in increaseddisease control efficacy, compared with the original BSPcast system. In one year, no reduction in the numberof fungicide applications was obtained using the modified BSPcast system in comparison to the original system, but in the second year the number of treatments was reduced from 15 to 13. The original BSPcast model overestimated the daily infection risk in 6.5% of days with wetness periods with low relative humidity during the wetness interruption, and in these cases the modified version was more adequate

Long-term treatment with insulin induces apoptosis in brown adipocytes: role of oxidative stress

Trying to define the precise role played by insulin regulating the survival of brown adipocytes, we have used rat fetal brown adipocytes maintained in primary culture. The effect of insulin on apoptosis and the mechanisms involved were assessed. Different from the known effects of insulin as a survival factor, we have found that long-term treatment (72 h) with insulin induces apoptosis in rat fetal brown adipocytes. This process is dependent on the phosphatidylinositol 3-kinase/mammalian target of rapamycin/p70 S6 kinase pathway. Short-term treatment with the conditioned medium from brown adipocytes treated with insulin for 72 h mimicked the apoptotic effect of insulin. During the process, caspase 8 activation, Bid cleavage, cytochrome c release, and activation of caspases 9 and 3 are sequentially produced. Treatment with the caspase inhibitor, benzyloxycarbonyl-Val-Ala-Asp (Z-VAD), prevents activation of this apoptotic cascade. The antioxidants, ascorbic acid and superoxide dismutase, also impair this process of apoptosis. Moreover, generation of reactive oxygen species (ROS), probably through reduced nicotinamide adenine dinucleotide phosphate oxidases, and a late decrease in reduced glutathione content are produced. According to this, antioxidants prevent caspase 8 activation and Bid cleavage, suggesting that ROS production is an important event mediating this process of apoptosis. However, the participation of uncoupling protein-1, -2, and -3 regulating ROS is unclear because their levels remain unchanged upon insulin treatment for 72 h. Our data suggest that the prolonged hyperinsulinemia might cause insulin resistance through the loss of brown adipose tissue.

Identification and conservation of remnant genetic resources of brown trout in relict populations from Western Mediterranean streams

Brown trout is a cold-adapted freshwater species with restricted distribution to headwater streams in rivers of the South European peninsulas, where populations are highly vulnerable because Mediterranean regions are highly sensitive to the global climatic warming. Moreover, these populations are endangered due to the introgressive hybridization with cultured stocks. Individuals from six remnant populations in Western Mediterranean rivers were sequenced for the complete mitochondrial DNA control region and genotyped for 11 nuclear markers. Three different brown trout lineages were present in the studied region. Significant genetic divergence was observed among locations and a strong effect of genetic drift was suggested. An important stocking impact (close to 25%) was detected in the zone. Significant correlations between mitochondrial-based rates of hatchery introgression and water flow variation suggested a higher impact of stocked females in unstable habitats. In spite of hatchery introgression, all populations remained highly differentiated, suggesting that native genetic resources are still abundant. However, climatic predictions indicated that suitable habitats for the species in these rivers will be reduced and hence trout populations are highly endangered and vulnerable. Thus, management policies should take into account these predictions to design upstream refuge areas to protect remnant native trout in the region

Estudi de la coautoria de publicacions científiques entre UPC i nou universitats dels Estats Units: Brown University, University of Chicago, Northwestern University, Stanford University, Columbia University, Cornell University, Harvard University, Princeton University i Duke University

S'analitza la coautoria de la UPC amb autors vinculats a institucions acadèmiques dels Estats Units, per totes les àrees temàtiques i sense considerar límits cronològics o documentals.

Mujeres en el mundo. Historia, retos y movimientos, Mary Nash

Mary Nash consigue perturbar las conciencias de mujeres y, sobre todo, de hombres del siglo XXI con la historia de las mujeres. No porque exponga el complejo, no lineal y contradictorio movimiento de las mujeres, sino porque esta historia nos desvela en lo profundo de la conciencia la enormidad de tiempo y sufrimiento que llevó a nuestras bisabuelas, abuelas, madres conseguir que algunas de nosotras podamos hoy tener un reconocimiento como sujetos, más o menos autónomos, de nuestras acciones, saberes, voces; para que hoy podamos reconocer, aceptar, tolerar y amar las diferencias entre form