Refining reproductive parameters for modelling sustainability and extinction in hunted primate populations in the Amazon

Funding: Collections were made voluntarily by local people as part of a community conservation project. Some materials were paid for by YAVACUS, a Peruvian NGO.Primates are frequently hunted in Amazonia. Assessing the sustainability of hunting is essential to conservation planning. The most-used sustainability model, the 'Production Model', and more recent spatial models, rely on basic reproductive parameters for accuracy. These parameters are often crudely estimated. To date, parameters used for the Amazon's most-hunted primate, the woolly monkey (Lagothrix spp.), come from captive populations in the 1960s, when captive births were rare. Furthermore, woolly monkeys have since been split into five species. We provide reproductive parameters calculated by examining the reproductive organs of female Poeppig's woolly monkeys (Lagothrix poeppigii), collected by hunters as part of their normal subsistence activity. Production was 0.48-0.54 young per female per year, and an interbirth interval of 22.3 to 25.2 months, similar to parameters from captive populations. However, breeding was seasonal, which imposes limits on the maximum reproductive rate attainable. We recommend the use of spatial models over the Production Model, since they are less sensitive to error in estimated reproductive rates. Further refinements to reproductive parameters are needed for most primate taxa. Methods like ours verify the suitability of captive reproductive rates for sustainability analysis and population modelling for populations under differing conditions of hunting pressure and seasonality. Without such research, population modelling is based largely on guesswork.Publisher PDFPeer reviewe

Las pensiones y la sociedad del futuro (es preciso que algo cambie para que todo sea diferente)

En el presente trabajo se abordan proyecciones de población,empleo, paro, PIB, productividad, pensiones, etc, buscando evaluar si los gastos sociales por pensiones y desempleo son sostenibles a medio y largo plazo

Ten theses on inmaterial labor

Este artículo tiene por objetivo descomponer el marco interpretativo y develar las hipótesis subyacentes sobre las que reposa la propuesta analítica de los autores italianos Lazzarato y Negri, para quienes el rasgo característico de esta época es el proceso mediante el cual el trabajo inmaterial devino hegemónico dentro del modo de producción capitalista a partir de la reestructuración de la fábrica en el transcurso de los años setenta. Para ello proponemos diez tesis desde las cuales pueda precisarse la propuesta analítica y desde allí repensarlo críticamente.This article aims to break through the interpretive framework and reveal the underlying hypothesis on which rests the analytical approach of the Italian authors Lazzarato and Negri, who consider that the specific characteristic of this time is the process by which the immaterial labor became hegemonic in the capitalist mode of production, from the restructuring of the factory during the seventies. In order to rethink this analytic proposal, we present ten theses.Fil: Giordano, Pedro Martín. No especifica;Fil: Montes Cato, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro de Estudios e Investigaciones Laborales; Argentin

Rehabilitación para museo del Palacio de la Aduana, en Málaga. Recuperar la ciudad para la ciudad

El Palacio de la Aduana, situado en el corazón de Málaga, en pleno eje cultural junto a elementos tan significativos como la Catedral, el puerto, el Teatro Romano y la Alcazaba, entre otros, es testigo y protagonista de los dos últimos siglos de la ciudad. Todo ello, junto al innegable valor arquitectónico de este edificio neoclásico, terminado en 1829, hacen de él un lugar más que adecuado para que, en una nueva etapa de su existencia, se destine a Museo de Bellas Artes y Arqueología de Málaga

Sistema para produção de tinta de impressão utilizando resina obtida de óleo residual

Trabalho de conclusão de curso (graduação)—Universidade de Brasília, Instituto de Química, 2016.Óleos e gorduras residuais destinados inadequadamente podem causar grandes problemas ambientais. Por isso há a necessidade de reciclá-los, utilizando-os na produção de outros produtos. Uma possibilidade é a produção de resina polimérica a partir de óleos residuais de fritura, que pode ser utilizada para a produção de tintas. Neste trabalho realizou-se um dimensionamento de um sistema de produção de tinta off set, conforme formulação testada em escala de bancada por MELLO, OLIVEIRA e SUAREZ (2013), utilizando resinas poliméricas obtidas a partir de óleos e gorduras residuais. Considerou-se um sistema com capacidade mensal de produção de 13.200 litros de tinta. Os principais equipamentos dimensionados e selecionados foram os envolvidos nos processos de preparo do pigmento; dispersão, moagem, agitação para a incorporação do pigmento na resina, a filtração e por fim o envasamento da tinta em galões para posteriormente ser comercializada

Influence of the irradiation wavelength on the photocatalytic activity of Au-Pt nanoalloys supported on TiO2 for hydrogen generation from water

[EN] Seven samples of P25 titania containing Au Pt nanoalloys at constant total metal loading (0.25% wt),very similar particle size (1.5 nm) and different proportions of Pt (0.0, 22.8, 27.8, 35.0, 50.0, 69.0 and 100.0% wt) have been prepared and characterized. Formation of real nanoalloys was supported by the shifts in the binding energy values of Au and Pt 4f7/2 peaks in XPS. Using 532 nm laser excitation it was observed that the six samples exhibit similar photocatalytic activity for hydrogen generation in the presence of methanol as a sacrificial electron donor. In contrast, in pure water remarkable differences in efficiency for hydrogen generation between the sample containing exclusively Au that was the most active and the others containing Pt were observed. In addition, oxygen evolution was also observed in the absence of methanol under visible light irradiation. Our results illustrate the potential that nanoalloys offer to optimize the photocatalytic activity of TiO2.Financial support from the Spanish Ministry of Economy and Competitiveness (CTQ2012-31325) is gratefully acknowledged. Partial funding of networking by the European union through project TRAIN2 is also acknowledged. P. Montes-Navajas also thanks the Universidad Politecnica de Valencia for a post-doctoral contract for excellence (CEI-01-11, 20090796).Montes Navajas, PM.; Serra, M.; García Gómez, H. (2013). Influence of the irradiation wavelength on the photocatalytic activity of Au-Pt nanoalloys supported on TiO2 for hydrogen generation from water. Catalysis Science and Technology. 3(9):2252-2258. doi:10.1039/c3cy00102dS225222583