Mary Seacole.

Se hace un análisis tanto de la vida personal como de la trayectoria profesional de la enfermera Mary Seacole. El texto tiene distintos tipos de letra y de dificultad para motivar a los estudiantes a leer en un nivel más elevado. Tiene, además, cronología de su vida y de su época, glosario, bibliografía y direcciones web.

Inglés para maestros de primaria : un manual de actividades y lenguaje para el aula.

Recurso que tiene como objetivo incrementar la confianza de los maestros en su capacidad para utilizar el inglés con eficacia, así como de proporcionarles sugerencias, ideas y actividades para el inglés en el aula de primaria. El CD de audio proporciona ejemplos del lenguaje en situaciones reales de clase, junto con ejercicios de pronunciación.

Henry VIII to Mary I : government and religion, 1509-58.

Su contenido se adapta a las especificaciones AS de 2008 para AQA, Edexcel y OCR. Analiza la evolución política y religiosa de este período, se examina la personalidad de Enrique VIII y la ascensión y caída de Wosley, la reforma religiosa, la ruptura con Roma y la disolución de los monasterios. También, evalúa la efectividad del reinado de Enrique y de sus sucesores, Eduardo y María, así como proporciona una visión general de los cambios en la Iglesia y en el Estado en este período. Incluye fechas clave, términos y temas, perfiles biográficos, resúmenes esquemáticos, fuentes literarias y síntesis de los principales debates historiográficos.

Red, black, yellow, Peter, John, Mary...

Alumnos y alumnas de tres años empiezan a aprender un idioma nuevo en las aulas. Esta enseñanza de idiomas desde edades tempranas se manifiesta como la mejor fórmula para favorecer el aprendizaje de una lengua extranjera, en un ambiente donde los más pequeños sienten el placer de escuchar y practicar, aprendiendo a través del juego.

Educação, globalização e educação a distância

Este artigo procura refletir sobre as Políticas Educacionais adotadas no Brasil no que se refere às ações e aos programas na área de Educação a Distância e a inserção das Tecnologias da Informação e Comunicação neste campo. Depois, aborda o processo de globalização e as novas demandas por informação e conhecimento, bem como as mudanças que as Tecnologias da Informação e Comunicação favorecem. O artigo discute, ainda, o uso pedagógico da Internet, que proporciona mudanças significativas na educação, sobretudo pela velocidade da produção do conhecimento, o que exige do professor uma constante atualização.

The water quality of the River Carnon, west Cornwall, November 1992 to March 1994: the impacts of Wheal Jane discharges

In January 1992, there was a major pollutant event for the River Canon and downstream with its confluence to the River Fal and the Fal estuary in the west Cornwall. This incident was associated with the discharge of several million gallons of highly polluted water from the abandoned Wheal Jane tin mine that also extracted Ag, Cu and Zn ore. Later that year, the Centre for Ecology and Hydrology (CBH; then Institute of Hydrology) Wallingford undertook daily monitoring of the River Canon for a range of major, minor and trace elements to assess the nature and the dynamics of the pollutant discharges. These data cover an 18-month period when there remained major water-quality problems after the initial phase of surface water contamination. Here, a summary is provided of the water quality found, as a backdrop to set against subsequent remediation. Two types of water-quality determinant grouping were observed. The first type comprises the determinants B, Cs, Ca, Li, K, Na, SO4, Rb and Sr, and their concentrations are positively correlated with each other but inversely correlated with flow. This type of water-quality determinant shows variations in concentration that broadly link to the normal hydrogeochemical processes within the catchment, with limited confounding issues associated with mine drainage. The second type of water-quality determinant comprises Al, Be, Cd, Ce, Co, Cu, Fe, La, Pb, Pr, Nd, Ni, Si, Sb, U, Y and Zn, and concentrations for all this group are positively correlated. The determinants in this second group all have concentrations that are negatively correlated with pH. This group links primarily to pollutant mine discharge. The water-quality variations in the River Camon are described in relation to these two distinct hydrogeochemical groupings. (C) 2004 Elsevier B.V All rights reserved.

The Wheal Jane wetlands model for bioremediation of acid mine drainage

Acid mine drainage (AMD) is a widespread environmental problem associated with both working and abandoned mining operations. As part of an overall strategy to determine a long-term treatment option for AMD, a pilot passive treatment plant was constructed in 1994 at Wheal Jane Mine in Cornwall, UK. The plant consists of three separate systems, each containing aerobic reed beds, anaerobic cell and rock filters, and represents the largest European experimental facility of its kind. The systems only differ by the type of pretreatment utilised to increase the pH of the influent minewater (pH <4): lime dosed (LD), anoxic limestone drain (ALD) and lime free (LF), which receives no form of pretreatment. Historical data (1994-1997) indicate median Fe reduction between 55% and 92%, sulphate removal in the range of 3-38% and removal of target metals (cadmium, copper and zinc) below detection limits, depending on pretreatment and flow rates through the system. A new model to simulate the processes and dynamics of the wetlands systems is described, as well as the application of the model to experimental data collected at the pilot plant. The model is process based, and utilises reaction kinetic approaches based on experimental microbial techniques rather than an equilibrium approach to metal precipitation. The model is dynamic and utilises numerical integration routines to solve a set of differential equations that describe the behaviour of 20 variables over the 17 pilot plant cells on a daily basis. The model outputs at each cell boundary are evaluated and compared with the measured data, and the model is demonstrated to provide a good representation of the complex behaviour of the wetland system for a wide range of variables. (C) 2004 Elsevier B.V/ All rights reserved.

Chemical behaviour of the Wheal Jane bioremediation system

The effectiveness of remediation of the highly acidic and transition metal polluted mine water discharge from the Wheal Jane Mine by the Wheal Jane Passive Treatment Plant is described. The success of the remediation required that all the system components work as predicted. The study shows considerable success in the removal of key toxic metals and clearly demonstrates the potential for natural attenuation of acid mine drainage, particularly iron oxidation, by microbial populations. The Wheal Jane Passive Treatment Plant provides the only experimental facility of its kind. (C) 2004 Elsevier B.V. All rights reserved.

Bioremediation of acid mine drainage: an introduction to the Wheal Jane wetlands project

Acid mine drainage (AMD) is a widespread environmental problem associated with both working and abandoned mining operations. As part of an overall strategy to determine a long-term treatment option for AMD, a pilot passive treatment plant was constructed in 1994 at Wheat Jane Mine in Cornwall, UK. The plant consists of three separate systems; each containing aerobic reed beds, anaerobic cell and rock filters, and represents the largest European experimental facility of its kind. The systems only differ by the type of pre-treatment utilised to increase the pH of the influent minewater (pH<4): lime-dosed (LD), anoxic limestone drain (ALD) and lime free (LF), which receives no form of pre-treatment. The Wheal Jane pilot plant offered a unique facility and a major research project was established to evaluate the pilot plant and study in detail the biological mechanisms and the geochemical and physical processes that control passive treatment systems. The project has led to data, knowledge, models and design criteria for the future design, planning and sustainable management of passive treatment systems. A multidisciplinary team of scientists and managers from the U.K. universities, the Environment Agency and the Mining Industry has been put together to obtain the maximum advantage from the excellent facilities facility at Wheal Jane. (C) 2004 Elseaier B.V All rights reserved.