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It is the world's largest and oldest ultramarathon race. It is a festival celebrating the triumph of human spirit over adversity. It has a camaraderie that enables ordinary mortals to overcome human fragility and perform beyond their wildest expectations. In the words of Comrades marvel Bruce Fordyce, this race 'can inspire ordinary people to do extraordinary things, and it brings out the best in all of us. This race has a power to transform, to inspire and to motivate unlike any other'. The official Comrades Marathon: The Ultimate Human Race begins in 1921 and chronologically describes every race in detail, up to 2010's commemorative 85th event. All the legends are here, in their full Comra...
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Navarra, 1211. En un momento histórico de revancha, la que busca Alfonso VIII de Castilla tras la ?rota? de Alarcos, y de despliegue de poder militar el que hace Muhammad al- Nasir en Al-Andalus, Miguel de Grez recibe la peor de las noticias: su hijo Roland ha sido hecho prisionero por los almohades. Su único pensamiento será viajar cuanto antes hasta Sevilla y rescatarlo. Apenas queda margen para atravesar la península antes de que las hostilidades se desaten y ambos ejércitos se enfrenten en la batalla de las Navas de Tolosa. Las cadenas del reino es la tercera entrega de la saga de caballerías La chanson de los Infanzones, ambientada en la Navarra de los siglos XII y XIII, bajo los reinados de Sancho el Sabio y Sancho el Fuerte. Esta saga de aventuras, de amena lectura gracias al excelente pulso narrativo de Begoña Pro Uriarte, ofrece una oportunidad sin igual para adentrarse en la historia y, para conocer, entre otros, cómo y cuándo surge el legendario lema Pro Libertate Patria, gens libera state, Pueblo libre, permanece en pie por la libertad de la patria o por qué las cadenas adornan la roja bandera. O, al menos, una de las hipótesis al respecto.
Animals and plants live in changing environmental conditions which require adaptation in order to cope with this. Some of these environmental changes serve as signals which have to be "sensed" and interpreted correctly by the organisms to initiate the adaptation. This signal processing is based on biochemical, molecular and neuronal processes which are discussed in this book. All examples given underline that continuous adjustment of physiological functions is an essential requirement for life and survival in complex changing environments.