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Name that leaf

di Emanuela Clavarino
Pubblicato il 23/09/2012Read time: 1 min
Botany
School

[video:http://www.youtube.com/watch?v=nX23TuwP0tI]

Columbia University, the University of Maryland, and the Smithsonian Institution are working on visual recognition software to help identify species from photographs. Leafsnap is the first in a series of electronic field guides being developed to demonstrate this new technology.
This free mobile app helps identify tree species from photographs of their leaves. Leafsnap currently includes the trees of the Northeast and will soon grow to cover the trees of the entire continental United States.

The realization of Leafsnap was possible thanks to the collaboration between Peter Belhumeur (Columbia University), David Jacobs (University of Maryland), and John Kress (Smithsonian Institution).

[video:http://www.youtube.com/watch?v=KCpR4JTEy4c]

The high quality photographs on the website leafsnap.com and in the app were made by the the not-for-profit nature photography group Finding Species.

[video:http://www.youtube.com/watch?v=k02C7p7mQ_c]

Previews of the app:

leafsnap leafsnapleafsnap leafsnap


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Neanderthal genes made Covid more severe

di Margherita Fronte
Pubblicato il 18/09/2023
A primitive man with a spear, blazer and briefcase

The Origin study from the Mario Negri Institute has identified genetic variants from Neanderthals in the DNA of those who had the most severe form of the disease.

Image credits: Crawford Jolly/Unsplash

Genetics

A small group of genes that we inherited from the Neanderthal man - and from his romantic relationships with our sapiens ancestors - exposes us today to the risk of developing severe Covid. This is the unique conclusion of the Origin study by the Mario Negri Institute, presented yesterday in Milan and published in the journal iScience.