Metalloporphyrin-based MOFs: new strategies for catalyst immobilization

Comunicacion a congreso (Presentación): ICCC 40. International Conference on Coordination Chemistry. Valencia, September 09-13, 2012

Simulating fisheries for the assessment of optimum harvesting strategies

Some results of a line of research explored by the author in recent years, and concerning the small-scale fisheries of Mexico are discussed. Clarity of goals for fisheries management is stressed as a departure point before taking any step towards model building. Age-structured simulation models require input data and parameters such as growth rates, natural mortality, age at first capture and maturity, longevity, the longest possible catch records series, and estimates of numbers caught per age group. The link between each cohort and the following can then be established by means of the Ricker stock recruitment or the Beverton-Holt models. Simulation experiments can then be carried out by changing fishing mortality. Whenever data on profits and costs and catch are available, these can also be analyzed. The use of simulation models is examined with emphasis on the benefits derived from their use for fisheries management.

Analytical strategies to solve problems in industrial and official laboratories

210 p.

A relação família e escola na experiência do Programa Interdisciplinar de Apoio às Escolas (Proinape) no município do Rio de Janeiro

A presente pesquisa se propõe a analisar a relação entre a escola e a família na experiência de trabalho do Programa Interdisciplinar de Apoio às Escolas Proinape no município do Rio de Janeiro. A partir de uma abordagem teórica sobre as duas instituições entendidas como fundamentais no processo de socialização dos sujeitos e de como que as relações entre o Estado e a sociedade civil se materializam na esfera da reprodução social na atualidade, este estudo objetiva apresentar as estratégias da nova pedagogia da hegemonia na obtenção do consenso social. Apresenta a educação sob o contexto da hegemonia do capital financeiro e a função educativa do Estado e o papel dos intelectuais na difusão da nova pedagogia da hegemonia vinculada aos interesses da burguesia internacional, sob a gerência direta dos organismos multilaterais. Analisa as formas de intervenção do Estado sobre a família pobre da classe trabalhadora, as dimensões históricas dessa relação, os novos arranjos familiares, a relação entre o Estado e a família na constituição do Pluralismo de bem-estar e do familismo e a diminuição da capacidade protetora das famílias em tempos de reestruturação produtiva. Dá destaque as particularidades da política de educação no Brasil frente às novas exigências do capital monopolista e os reflexos dos programas de ação federais e da gestão privada da política educacional no município do Rio de Janeiro na gestão do prefeito Eduardo Paes. Através do levantamento de dados, da análise documental e dos relatórios de avaliação final das equipes do Proinape da 4 Coordenadoria Regional de Educação expõe as bases legais e os programas sociais que sustentam a ação do Estado junto às famílias pobres da classe trabalhadora na área de educação, assim como as ações da Secretaria Municipal de Educação do Rio de Janeiro junto às famílias com a ênfase no disciplinamento para a elevação dos indicadores educacionais.

Economics and management strategies for restocking sandfish in Vietnam

This paper assesses the costs and benefits of a proposed project for restocking sandfish (Holothuria scabra) in Khanh Hoa Province, Vietnam. It identifies the key stakeholders, institutional framework, management and financing required for its implementation. The recommended management strategy includes a 50 percent harvest at optimum size. Limiting the number of boats fishing an area, possibly through licensing, can control the number of sandfish removed. The easiest way to prevent harvesting of undersized sandfish is to control the size of processed sandfish from processors. The potential benefits of restocking are shown by the rapid changes in selected indicators, particularly the net present value, the internal rate of return, and the benefit-cost ratio. Probability analysis is used to estimate the uncertainties in the project calculations. Based on a conservative estimate, the restocking of sandfish is expected to be profitable, although cost-benefit analyses are sensitive to the survival of restocked sandfish and their progeny, and the number of boats fishing for sandfish in the release area.

Survey- and fishery-derived estimates of Pacific cod (Gadus macrocephalus) biomass: implications for strategies to reduce interactions between groundfish fisheries and Steller sea lions (Eumetopias jubatus)

Survey- and fishery-derived biomass estimates have indicated that the harvest indices for Pacific cod (Gadus macrocephalus) within a portion of Steller sea lion (Eumetopias jubatus) critical habitat in February and March 2001 were five to 16 times greater than the annual rate for the entire Bering Sea-Aleutian Islands stock. A bottom trawl survey yielded a cod biomass estimate of 49,032 metric tons (t) for the entire area surveyed, of which less than half (23,329 t) was located within the area used primarily by the commercial fishery, which caught 11,631 t of Pacific cod. Leslie depletion analyses of fishery data yielded biomass estimates of approximately 14,500 t (95% confidence intervals of approximately 9,000–25,000 t), which are within the 95% confidence interval on the fished area survey estimate (12,846–33,812 t). These data indicate that Leslie analyses may be useful in estimating local fish biomass and harvest indices for certain marine fisheries that are well constrained spatially and relatively short in duration (weeks). In addition, fishery effects on prey availability within the time and space scales relevant to foraging sea lions may be much greater than the effects indicated by annual harvest rates estimated from stock assessments averaged across the range of the target spec