Las profundidades marinas son un lugar árido para la exploración: la oscuridad es enorme, se registran temperaturas medias de tres grados centígrados y existe una presión aplastante que no hace fácil la visita de los seres (orgánicos o robóticos) que n…
Some formula milk has twice as much sugar per serving as a glass of soda, according to one new research. But perhaps most surprising is the fact that there are very few regulations to control sugar content and ensure that consumers are well informed.
Baby formula, formula milk or infant formula is an artificial substitute for breast milk. It is usually produced from cow's milk.
Breast milk is the recommended source of nutrition for babies, especially during the first six months of life. Although it's sweet, sugar is mainly lactose and the content is specific to the baby's needs.
On the contrary, infant formula milk contains added sugars, such as corn syrup, which are added during production and are not found in breast milk.
This is harmful to babies because high consumption of added sugars can contribute to tooth decay, poor diet and encourage obesity.
In the aforementioned study, the sugar content of 212 infant formula dairy products available on the market aimed at babies under three years of age. The products were sold in supermarkets in 11 countries.
The findings revealed that more than half of the products contained more than 5g of sugar per 100ml. In many cases, the sugar content was more than 7.5 g per 100 ml, which exceeds the levels recommended by the European Parliament for infants.
One more reason to opt for breastmilk, that offers important benefits to the baby when you get sick and helps you recover sooner. Without counting that helps stop climate change and represents a saving of more than 100 kg of CO2 per baby.
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The news
Some infant formulas contain more sugar than soft drinks
was originally published in
Xataka Science
by
Sergio Parra
.
According to a new numerical model of biogeochemistry and climate, developed by researchers at the Georgia Institute of Technology, Earth will maintain its oxygen-rich atmosphere for a billion years, before rapid deoxygenation makes the atmosphere reminiscent of early Earth.
The study, published in Nature, has important ramifications not only for the future of Earth's biosphere, but also for the search for life on Earth-like planets.
Oxygen (and the photochemical byproduct, ozone) is the most accepted biosignature for the search for life on exoplanets, and, from the looks of it, the oxygen-rich atmosphere might only be possible during 20-30% of the entire history of Earth as an inhabited planet.
The atmosphere after the major deoxygenation is characterized by high methane, low levels of CO2, and no ozone layer. The Earth system will likely be a world of anaerobic life forms.
Given that the modeling of the future evolution of the Earth harbors many uncertainties in the geological and biological evolutions, for the modeling of the future evolution of the Earth adopted a stochastic approach, which allows researchers to obtain a probabilistic assessment of the lifetime of an oxygenated atmosphere.
As explained Kazumi Ozaki, assistant professor at Toho University and lead author of the research:
For many years, the lifespan of Earth's biosphere has been debated based on scientific knowledge about the sun's constant brightness and the global carbonate-silicate geochemical cycle. One of the corollaries of such a theoretical framework is a continued decline in atmospheric CO2 levels and global warming on geological time scales. In fact, it is generally thought that Earth's biosphere will come to an end within the next 2 billion years due to a combination of overheating and a shortage of CO2 for photosynthesis. If true, it can be expected that atmospheric O2 levels will also eventually decrease in the distant future. However, it is unclear exactly when and how this will occur.
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The news
Future lifespan of Earth's oxygen-rich atmosphere is about 1 billion years
was originally published in
Xataka Science
by
Sergio Parra
.
As suggested by this new study, still preprint, people evaluate moderate political opinions more negatively compared to extreme ones.
People who deviate from group norms pose problems for their ingroup, but not all forms of deviation are equivalent.
The study was divided into four experiments. Participants thought that both Democrats (Experiment 1) and Republicans (Experiment 2) would view moderate political candidates more negatively (e.g., less loyal, less principled, more likely to defect) than extreme candidates. Furthermore, these relatively negative evaluations of moderates extended to rank-and-file members of the Democratic (Experiment 3) and Republican (Experiment 4) parties.
These findings suggest that people intuitively understand subjective group dynamics, and when applied to politics, this understanding can have important consequences for how people with moderate and extreme beliefs engage in political discourse.
The underlying point, then, is that people who deviate from the group's prescriptive norms can harm their group by blurring perceptions of consensus, thereby eroding the legitimacy of a group's position.
Without a doubt, another proof of the tendency to affiliate with the most extreme, compared to the most moderate. And how democracy is affected by it, in addition to the fact that politicians also take advantage, becoming radicalized in their speeches, especially using demagoguery and populism.
That is why, perhaps, in the cradle of democracy, in fact, a machine was used to choose elected officials because one could not trust the whims of the administrators: the klerotherion It was this device, used in the polis during the period of Athenian democracy, to randomly select the citizens who would participate in the majority of state positions.
A kleroterion in the Agora Museum of Athens.
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The news
If you have moderate political opinions they will rate you worse than if you have extreme ones.
was originally published in
Xataka Science
by
Sergio Parra
.
Investigadores de Indonesia y Singapur han resuelto «el mayor enigma de la ornitología Indonesia»: la prueba irrefutable de que, al contrario de lo que lleva pensando en casi estos dos últimos siglos, la tordina cejinegra (
Malacocincla perspicillata
)…
La prueba del malvavisco de la Universidad de Stanford es de sobra conocida. En el experimento, se ofrecía a unos niños un premio inmediato, una golosina, pero se les advertía de que si no se la comían y esperaban un poco, unos quince minutos, obtendrí…
El motor de curvatura del Enterprise, la nave estelar de Star Trek, podría convertirse en realidad mucho antes de lo que pensábamos. O eso es, por lo menos, lo que se deduce de un trabajo recién publicado en ‘Classical and Quantum Gravity’ por un equip…
