Tag archive: biología
The Small Stresses of Keeping Coronavirus-Free
Why is it so, so hard to stop touching your face?
Descubren un dinosaurio del tamaño de un colibrí preservado en ámbar
El cráneo de la diminuta criatura, de poco más de 7 mm de longitud, arroja luz sobre la evolución de las aves
Ancient amber contains a cockroach—and a surprise
Look closely at this piece of fossilized amber and you’ll spot something unusual: a cockroach trapped with its own feces (arrow).
Labs rush to study coronavirus in transgenic animals — some are in short supply
Mice originally bred for SARS research are in high demand.
Confirmada la cura de un segundo paciente con VIH
Un equipo de investigadores, con participación de IrsiCaixa, han descrito la cura del VIH en el llamado ‘paciente de Londres’ tras comprobar que el virus no continúa en su cuerpo después de 29 meses sin tratamiento. Al mismo tiempo, han anunciado un tercer caso de remisión, el ‘paciente de Dusseldorf’.
Antibiotics May Compromise Manure’s Carbon-Fixing Effects
Drug use in cows alters nutrient cycling
La paradoja temporal del coronavirus
A medida que la epidemia avanza por el planeta, cada país revive situaciones que se produjeron en los primeros lugares del brote. Su solución puede pasar por aprender de ese juego con el tiempo.
New drugs aim to disarm the immune system’s ‘atomic bomb’ cells
Seeking a new treatment for people who have dangerous blockages in their coronary arteries, doctors in London are trying to disarm the body’s own defenders. The 90 patients in the study receive the usual treatments for heart disease, such as small tubes called stents to prop open their narrowed arteries. But half of the patients in the phase II trial, conducted by clinical pharmacologist Albert Ferro of King’s College London and colleagues, also pop pills targeting a class of immune cells called neutrophils. Researchers think that by invading the fatty obstructions, or plaques, in clogged arteries, neutrophils make them even more dangerous. The drug is designed to steer the cells away.
Why does the coronavirus spread so easily between people?
Researchers have identified microscopic features that could make the pathogen more infectious than the SARS virus — and serve as drug targets.
Suteen kudeaketarako animaliek duten garrantzia azpimarratu dute
Ezaguna da hainbat animalia belarjaleek duten garrantzia baso-suteen kontrolerako, belarrak eta bestelako landareak kontsumitzean, basoetako erregaia gutxitu egiten dutelako. Halere, belarjaleak ez dira suteen kudeaketan aritzen direnek kontutan hartu behar dituzten animalia bakarrak, Trends in Ecology and Evolution aldizkarian argitaratutako zientzia-artikulu batean ohartarazi dutenez. Osterantzean, kudeaketa horietan hegaztiak, intsektuak edota ugaztun handiak aintzat hartzeko beharra azpimarratu du Australiako zientzialari talde batek. Ikertzaileen esanetan, animalia horien jardunari esker, suteak izateko aukerak gutxitu daitezke.