Mes: julio 2017

What If We Killed All the Mosquitoes?

With the Zika virus in the news, some people have wondered why we don’t just kill them ALL. Sources: History of War against Mosquitoes/DDT http://www.nature.com/news/2010/10072… http://www.panna.org/resources/ddt-story http://www.scientificamerican.com/art… Ecological Impacts http://www.nature.com/news/2010/10072… http://rspb.royalsocietypublishing.or… http://www.fs.fed.us/wildflowers/poll… Zika Mosquito http://www.cdc.gov/zika/transmission/… http://www.paho.org/hq/index.php?opti… RNA Molecular Pesticide (killing) http://www.ncbi.nlm.nih.gov/pubmed/18… Transgenic Male Mosquitoes — self-limiting gene, kills offspring (killing) http://journals.plos.org/plosntds/art… http://journals.plos.org/plosntds/art… http://www.reuters.com/article/us-sci… http://www.oxitec.com/faqs/ Transgenic […]

El ADN mitocondrial neandertal revela una nueva ola de migración humana desde África

Eva Rodríguez Nieto En los últimos años, el análisis de un número cada vez mayor de muestras de ADN tanto mitocondrial (procedente de las mitocondrias, con 16.000 pares de bases) como nuclear (del núcleo celular, con 3.000 millones de pares de bases) en restos humanos arcaicos fosilizados ha servido para reconsiderar las relaciones evolutivas entre […]

Why Does Wine Make Your Mouth Feel Dry?

Why Does Wine Make Your Mouth Feel Dry? If you want to learn more about this topic, start your googling here: Tannin: a yellow or brownish chemical present in some plant tissues, used in leather production and ink manufacture, and a contributor to the sensation of astringency Astringency: the sensation caused by the contraction of […]

La oveja Dolly, el primer mamífero clonado

Agencia SINC Aunque no se anunció hasta el año siguiente, el 5 de julio de 1996 nació la oveja Dolly, el primer mamífero clonado a partir de una célula adulta. Sus creadores fueron los científicos Ian Wilmut y Keith Campbell del Instituto Roslin de Edimburgo (Reino Unido). La famosa oveja vivió hasta el 14 de febrero […]

José Luis Cuevas en Monterrey

Jorge Pedraza Ante la presencia de José Luis Cuevas se despertaban diversas reacciones, que iban desde la admiración a la crítica CONFERENCIA.- Ante la presencia de José Luis Cuevas se despertaban diversas reacciones, que iban desde la admiración a la crítica. Lo que es indudable es que aunque haya fallecido antier, se trata de uno […]

Shaping Humanity: How Science, Art, and Imagination Help Us Understand Our Origins [Full Teaser]

Watch paleoartist John Gurche’s vision of his own direct ancestry in under 2 minutes. Learn how he draws on fossil discoveries and forensic techniques to create transfixing reconstructions of long-lost human ancestors. http://yalebooks.com/yupbooks/book.as… Shaping Humanity: How Science, Art, and Imagination Help Us Understand Our Origins, Yale University Press, November 2013.

Why Do We Have Butt Hair?

You’ve asked. Now we’re answering. Hosted by: Hank Green Sources: https://books.google.com/books?id=NYB… http://www.krepublishers.com/02-Journ… http://www.ncbi.nlm.nih.gov/pmc/artic… http://www.ncbi.nlm.nih.gov/pmc/artic… https://commons.wikimedia.org/w/index… https://commons.wikimedia.org/wiki/Fi…

What causes kidney stones? – Arash Shadman

The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn’t actually swallow a stone the size of a coconut; kidney stones form inside the body. So how do they grow in the first place? And why are they so painful to get out? Arash Shadman […]

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