El «verano negro» de 2020 quemó extensiones enormes en Australia. El humo llenó la atmósfera como lo habría hecho una erupción volcánica moderada.
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Las personas con afantasía no solo se diferencian de las demás por su incapacidad de visualización mental, tampoco se sobrecogen ante las historias de terror.
La colaboración EHT obtiene las primeras imágenes en luz polarizada de un agujero negro. El hito permite reconstruir el campo magnético en las inmediaciones del objeto y aporta pistas clave para entender cómo se comporta la materia caliente que lo rode…
A team of researchers from the University of Toronto and the University of Lethbridge has found evidence showing that Men with an older brother are more likely to be homosexual than men without.
In your study, published in the magazine Proceedings of the Royal Society B, comes to provide more data regarding the reasons, still unknown, for the origins of homosexuality.
Question of antibodies?
The study cited analyzed data from 10 unrelated studies that included sexual orientation for 5,400 men and also information on siblings, finding that those who had an older brother were 38 percent more likely to be homosexual than those who did not have an older brother.
They also discovered that The more older brothers a man had, the more likely he was to be gay.: Having three older brothers, for example, doubled the odds of a man being gay.
But the same could not be said of women. The researchers couldn't find any pattern in siblings, male or female, that changed the likelihood that a woman would be gay.
The researchers couldn't determine why birth order affects the likelihood of being gay, but they suggest it's possible that the mother's immune response having a male child has a subsequent impact on the babies born thereafter.
The theory, called maternal immune hypothesis, suggests that when a woman gives birth to a male baby, her body produces antibodies in response. The theory then suggests that the antibodies produced remain in the woman's body and somehow they reach the brains of future baby boys.
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The news
According to a study, there is a correlation between having an older brother and being gay
was originally published in
Xataka Science
by
Sergio Parra
.
P172+18 es el cuásar intenso en radio más antiguo jamás descubierto. Las propiedades de estos astros podrían ayudar a entender cómo algunos agujeros negros supermasivos pudieron formarse tan poco tiempo después de la gran explosión.
El hallazgo aporta nuevas pistas sobre la relación entre la inmunoterapia y el microbiona.
Beyond the Lombrosian concepts that were already stored in the trunk of pseudosciences, Artificial intelligence does seem to have found correlations between our face and our personality.
This is what it suggests a new study published in Nature whose results indicate that real-life photographs taken in uncontrolled conditions can be used to predict personality traits using computer vision algorithms.
Big Five
In psychology, the Big Five Model (or simply Big Five) is a taxonomy or classification of personality traits that analyzes the composition of five personality dimensions in its broadest sense, and can be correlated with certain faces, according to the aforementioned study. The big five would be: Openness to experience, Conscientiousness, Extraversion, Agreeableness, and Neuroticism.
According to the study, these types of faces would correlate with such personality dimensions:
The initial sample included 25,202 participants who completed the questionnaire and uploaded a total of 77,346 photographs. Finally, they trained artificial neural networks (ANN) on a large set of labeled data to predict scores.
It is not well known whether these correlations have a true causal link and why. But if they had it, There are several theoretical reasons to expect associations between facial images and personality..
First, genetic background contributes to both face and personality. In addition to shaping the face, genes also play a role in the development of various personality traits, such as risk behavior, and the contribution of genes to some traits exceeds the contribution of environmental factors.
Our brain, intuitively, would also find a face more beautiful or trustworthy based on facial patterns, just as we also unconsciously detect the other person's health, as suggested a study from a few years ago, led by researchers at Macquarie University, which developed a new computer model that can predict the status of certain health characteristics simply by analyzing a person's face.
The study, which was published in the journal Frontiers in Psychology, shows that the model is capable of detecting information on BMI, body fat and blood pressure levels.
This allows us to identify healthy people to mate or to form cooperative relationships, it is a mere evolutionary mechanism, which algorithms have now learned to identify with much more certainty. You can delve into all this in the following video:
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The news
The face could indeed be the mirror of the soul, according to artificial vision algorithms
was originally published in
Xataka Science
by
Sergio Parra
.
Politics and its bitter daily controversies are now part of the media and even our lives with the same capacity for penetration as football or the tabloid press. Until very recently, Politics was not the main topic in the media, now it is almost always.
In it next study, still in preprint, it is suggested that being subjected to the daily ups and downs of politics, which forces us to position ourselves, polarizes us, disappoints us, makes us hate certain actors or show unbreakable adhesions to surf the cognitive dissonance, finally, acts as a stressor, evokes negative emotions and negatively affects our health.
Politics and psychological well-being
In the two experiments carried out in the cited study, more than a thousand Americans were asked to keep a diary for 14 or 21 days. At the end of each day, they had to record the political story they had thought about most that day and their emotional reactions. They were also asked to report other more general details about their psychological and physical well-being and their motivation to take any political action.
Next, an example of a person's 14-day diary. The blue line marks how negative your emotional response to politics was that day; Here, high means more negative, low means more positive. The dashed red line is a general measure of the person's psychological well-being. We can see that the two lines appear to move in a similar way. On the 4th and 8th, when they weren't thinking about politics, they felt pretty good, all things considered. On days with big political news, not so much.
In other words: politics can really ruin your day. In this study, Democrats and liberals had more negative emotional reactions to politics than Republicans and conservatives, but it's difficult to discern how much of that is about partisanship and how much is just about the specific content of political news on the days it was running. they are measuring.
Take action
Politics has taken on a leading role in our daily lives, which also pushes us to have more opinions about it, to attend more protests and to try to change what is established, but this overexposure also negatively affects our psychological well-being. How, then, can one be committed to politics without suffering for it?
Many of the subjects reported using some type of strategy to deal with their negative emotions, such as “cognitive reappraisal” (for example, reminding oneself that a situation is not as bad as it seems, or that even bad situations can have negative parts). good) “distraction” (disconnecting from distressing conversations or changing the channel to disturbing news) or “expressive suppression” (hiding your emotions from others in daily life)
It is understandable that people often try to regulate their politically induced emotions; and successfully regulating these emotions through cognitive strategies predicted greater well-being, but also a weaker motivation to act. Although people can protect themselves from the emotional impact of politics, commonly used regulation strategies appear to reduce action.
The distraction is the most relevant technique, since it is linked to news evasion. In the first study, subjects reported trying to distract themselves from politics 80 percent of the days. Those who did so felt better, reporting lower levels of negative emotion. In the second study, subjects reported trying to distract themselves on 56 percent of the days, compared to the first.
But successfully distracting oneself from politics also, unsurprisingly, reduced subjects' interest in undertaking any form of political action: attending a protest, volunteering for a campaign, donating to a candidate, calling their senators, etc In other words, political news may make you miserable, but that misery can go a long way toward prompting you to do something about it. That finding was consistent among Democrats, Republicans and independents.
To examine whether an alternative approach to one's emotions could avoid this commitment, we measured the emotional acceptance in one of the experiments (i.e., accepting one's emotions without trying to change them) and it was found that successful acceptance predicted greater daily well-being, but not an impediment to political action.
Overall, this research highlights how politics can be a chronic stressor in people's daily lives, underscoring the far-reaching influence that politicians have beyond the formal powers they have been given.
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The news
Daily political controversies stress us and worsen our health
was originally published in
Xataka Science
by
Sergio Parra
.
En agosto de 2020, una potente explosión arrasó el puerto de Beirut. Se generó una onda atmosférica con efectos a muy gran altura.
Al alternar entre diversas conformaciones, estas moléculas poco corrientes pueden proporcionar nuevos mecanismos de regulación.