First step, deep breaths.
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Los cientÃficos han levantado el hacha de guerra contra el ministro de Ciencia e Innovación, Pedro Duque, y su intención de modificar la actual Ley de Ciencia. A pesar de que desde el Gobierno se aseguró que se contarÃa con todos los agentes implicados…
The virus's RNA, part of the genetic material within a virus, can persist up to a month in dust, according to a study carried out in rooms where patients with COVID-19 were isolated.
He study It did not evaluate whether the dust can transmit the virus to humans. However, it could offer another option for monitoring COVID-19 outbreaks in specific buildings.
Way to monitor buildings
For this study, the research team worked with teams responsible for room cleaning in the state of Ohio, where students who tested positive for COVID-19 were isolated.
The study, published in mSystems magazine, found that some of the genetic material at the heart of the virus persists in the dust, although the envelope around the virus is likely to break down sooner.
They found genetic material from the SARS-CoV-2 virus, the virus that causes COVID-19, in 97% of the dust samples.
The studio offers another non-invasive route to monitor buildings for COVID-19 outbreaks, especially as more people get vaccinated and return to common spaces.
Monitoring dust, then, could offer insight similar to that obtained when analyzing a city's wastewater.
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The news
Coronavirus RNA can persist for up to a month in room dust
was originally published in
Xataka Science
by
Sergio Parra
.
According to a new study published in the magazine PLOS Biology, human screams can transmit many more things than fear, and are more acoustically diverse than previously thought.
Functional MRI Imaging
In the study, twelve participants were asked to vocalize positive and negative cries that could be triggered by various situations. A different group of individuals rated the emotional nature of the screams, classified the screams into different categories, and underwent functional magnetic resonance imaging (fMRI) while listening to the screams.
The results revealed six types of psychoacoustically distinct screams, indicating pain, anger, fear, pleasure, sadness, and joy.
Perhaps most surprising was that the listeners responded more quickly and accurately, and with greater neural sensitivity, to positive and non-alarming screams than to alarming screams. Specifically, the less alarming screams elicited more activity in many auditory and frontal brain regions.
According to the authors, these findings show that screams are more diverse in their communicative and signaling nature in humans than is often assumed.
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The news
Human screams not only communicate fear, but at least six different emotions
was originally published in
Xataka Science
by
Sergio Parra
.
But don't treat them as invincible.
A la pregunta ‘¿En qué te fijas para juzgar el atractivo de una persona?’, son muchos los que responden que el color de los ojos es determinante. El color azul causa furor más que ningún otro, quizás por ser mucho menos frecuente que el marrón. Aunque,…