10 ríos que transformaron el mundo

¿Sabías que a lo largo de la historia han muerto más personas a causa de las epidemias que por culpa de las guerras y otros desastres? Algunos científicos, a veces arriesgando sus vidas, investigaron las causas de enfermedades como la peste, el cólera, el sida o el ébola. Muchos de ellos fueron objeto de burla, fueron ignorados, e incluso los despidieron de sus trabajos. Sin embargo siguieron intentando encajar las piezas del puzle de las epidemias. Y la primera pieza, la más importante, era el «paciente cero», la primera persona que hubiera contraído la enfermedad, porque así...

This title covers the major drivers of the Latin American region’s economy, including exports of agricultural products, petroleum and minerals, and manufactured goods, along with the service and tourism industries. Despite recent improvements, the Latin American economy remains dependent on commodity exports to the West, presenting a challenge to the region’s long-term future. When used in the classroom, this resource provides readers with the tools they need to analyze concepts in economics and how they affect the countries of Latin America.

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

A flexible suite of resources providing full coverage of the Cambridge IGCSE® Spanish as a Foreign Language syllabus (0530) for first examination in 2015. With a skills-based approach and an international focus, this coursebook with audio CD promotes a deeper understanding of the Spanish language and culture. Engaging texts, images and audio enhance the activities in the coursebook and help students develop language skills. Exam-style questions and clear learning objectives encourage self-assessment and support students through the Cambridge IGCSE® Spanish as a Foreign Language course.

Nunca en la literatura universal se ha producido un florecimiento de poetas que en cantidad y calidad pueda ser comparado con el grupo poético del 27 español. La sola mención de sus nombres bastará para confirmar que estamos en uno de los períodos más brillantes de nuestra lírica: Pedro Salinas, Jorge Guillén, Gerardo Diego, Dámaso Alonso, Vicente Aleixandre, Federico García Lorca, Rafael Alberti, Luis Cernuda, Emilio Prados, Manuel Altolaguirre... Entre todos lograron una original síntesis de tradición y modernidad, de clasicismo y vanguardia, de lo español y lo universal....