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A través de una revisión bibliográfica se muestra la evolución del discurso del cambio climático. En una primera sección se presentan textos que tienen relación con la divulgación de la teoría del calentamiento global antropogénico, destacando lo…

Severe acute respiratory coronavirus (SARS-CoV) emerged in 2002, resulting in roughly 8000 cases worldwide and 10% mortality. The animal reservoirs for SARS-CoV precursors still exist and the likelihood of future outbreaks in the human population is…

Yemen has been faced with the worst cholera epidemic of modern times, with more than 1 million suspected cases and 3000 deaths at the time of writing. This problem is largely due to the longstanding civil war between pro-government forces and the…

Çin'in Wuhan kentinde 2019 Aralık ayının sonlarında ortaya çıkan yeni koronavirüs salgını tüm dünyayı etkisi altına almış ve salgının giderek yayılmasıyla uluslararası ticaret yavaşlama eğilimine girmiştir. Covid-19 salgını tüm dünyada ekonomik…

Biofertilizers are organic products usually obtained from an anaerobic process, evaluated mainly as phytoprotectors for agriculture, although they can improve fruit production. By this way, a field experiment was carried out in Remígio County,…

The term 'organically grown food' denotes products that have been produced in accordance with the principles and practices of organic agriculture. The use of alternatives to synthetic fertilizers is an important issue in organic systems. A two-year…

The fruit of the West Indian gherkin is greatly appreciated in Brazilian cuisine, especially in the north and northeast of Brazil. However, it is still considered a secondary crop, and is cultivated using non-technical management. As it is a crop…

In Northeastern Brazil, the sweet potato is cultivated in small farms, in a family farming systems, constituting themselves an alternative way for the generation of food, employment and income. This study aimed to assess the effect of cattle manure…

Los biofertilizantes foliares (BFF) se elaboran a partir de insumos locales de plantas o animales. En el valle de Toluca se evaluó el impacto de cuatro diferentes BFF sobre un policultivo con maíz, haba y calabaza. De todos los BFF comparados, el…