Digitizing data: you can use skyrmions together with antiskyrmions

Already some research in the past has shown that magnetic skyrmions, quasi-particles predicted theoretically and observed experimentally made of small nanoscopic vortices existing in special magnetic materials, could be used to store digital data. The latter could be decoded according to the presence or essence of a given sequence along the magnetic band.

Now a team of researchers from German institutes has discovered that skyrmions and antiskyrmions can coexist and this could make possible a strong expansion of the storage capacity of such a system.
In the study, published in Nature Communications, the possibility of storing digital data through magnetic circuits made of nanoscopic magnetic strips in which the data are encoded in magnetic nano-objects, essentially based on their presence or absence in specific positions, is considered.

The nano-object to be used could be the skyrmione, a small magnetization vortex that is extremely stable. These small nanoscopic objects can be “written”, eliminated, read and moved by magnetic currents.
Now researchers have discovered that skyrmions and antiskyrmions, opposite magnetic vortexes, can coexist, under certain conditions, in the same type of material.

This happens at a temperature of critical tradition. This is a discovery that could allow an advanced version of a digital archiving typology, the one based on skyrmions, already futuristic in itself. A sequence of bits, for example, could be encoded by a sequence of skyrmions (1) and anti skyrmions (0).

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Very rare albino tango orangutan found in the forest of Borneo

A rare albino orangutan, the only one in the world among those living but identified, has been intercepted in the Borneo rainforest according to a statement by the AFP news agency.
It is Alba, an albino primate very rare even for its blue eyes, completely covered with white hair, released in 2017 from a cage where it was held prisoner by villagers in the Kalimantan area.

She was released and released to the bado layer at the end of 2018 and has not been seen since, which has kept environmentalists anxious for several months, worried about her chances of surviving in the natural environment.
However, this week, members of the Borneo Orangutan Survival Foundation sighted the specimen in the company of three other orangutans who had also been released in recent months.

“We have concluded that it can survive in the forest,’ notes Indra Exploitasia, a member of the local environment ministry.
Tango orangutans are an endangered species: these animals have seen their range of action and in general their habitat reduced a great deal in recent decades due to deforestation and human activities in general.

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Moderate consumption of eggs not associated with higher risk of cardiovascular disease

Moderate egg consumption, up to one per day, cannot be linked to an increased risk of cardiovascular disease, at least in the populations analysed by a new study in The BMJ.

Eggs are a particular food: supplied with the highest quality protein and iron as well as unsaturated fatty acids, however, they have a relatively high cholesterol content. Precisely for this reason they are usually discouraged to those who suffer from cardiovascular diseases, although this has been widely debated in recent years due to conflicting studies.

Precisely in order to assess whether there is a link between egg intake and cardiovascular disease, the research team used three large US cohort studies for a total of more than 200,000 people who did not suffer from cardiovascular disease, type 2 diabetes and cancer, at least at the beginning of the data collection. All subjects worked in the health field (e.g. nurses). The follow-up lasted 32 years.

The researchers analyzed the number of cases of cardiovascular disease occurring in these individuals, including coronary heart disease and stroke.
After various adjustments of factors, including age, lifestyle and dietary factors, the researchers found no association between increased egg intake and increased risk of cardiovascular disease for people who consumed up to one egg a day.

They found a higher risk of cardiovascular disease when replacing the egg per day with a portion of processed red meat (15% higher risk), unprocessed meat (10%) and whole milk (11%).
The intake of other foods, such as fish, poultry, legumes, cheese and nuts, could not be linked to an increased risk of cardiovascular disease.

However, it is a somewhat limited study. Although the number of subjects examined is relatively high and the follow-up period relatively long, the subjects were all health professionals, which can certainly be a factor influencing their diet.

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Neanderthals in Siberia belonging to two different groups, one from Europe

A team of paleoanthropologists confirms, through a study published in Proceedings of National Academy of Sciences, that the Neanderthals living in Siberia, or at least a part of them, came from various European populations.
At least one of the two important groups of Neanderthals living in southern Siberia had in fact emigrated from Eastern Europe.

The origins of the Siberian Neanderthals, or rather the place from which they emigrated, have never been known. The research team examined some of the tools and bones found in the Chagyrskaya Cave, a cave near the Alkaid Mountains in Russia that hosted Neanderthals in the past.
The morphological analyses of the 3D models of the instruments, which the researchers carried out using special scanners, showed that these instruments made of stone had many characteristics in common with other instruments made by groups of the Micoquien culture, composed of people from Central and Eastern Europe.

Specifically, these instruments resembled those found at sites in Bavaria, including those of the Sesselfelsgrotte cave.
In addition to analysing the stone instruments, researchers also made DNA analyses of the bones found in the same Siberian cave and established the migration route of the Siberian Neanderthals. The latter must have travelled through Europe, first through Croatia and then in the North Caucasus, until they reached the Altai mountains.

DNA analysis also showed that the Neanderthals living in the Chagyrskaya cave differed from the group of Neanderthals whose remains were found in the Denisova cave, another place in Siberia.
This difference confirms that the Neanderthals of Denisova had almost no connections with the cultures of Micoquien and confirms that the different groups of Neanderthals who emigrated to Siberia are at least more than one.
The study was carried out by an international team also composed of scientists from the Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU).

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Finally A Good Review On Manscaped!

If you watch Shark Tank regularly, you may have seen the episode where Manscaped got featured. Manscaped is a product for men to shave below the belt, and it doesn’t come cheap: if you get the main package they offer, it’ll run you about $90. But some people say it’s worth it. One such publication is OUTWITTRADE.COM, which has published a thorough review of Manscaped here. They are not overly positive on it though. They say that you should take your time when you use the product, and and on and off button is a pain to use. They had also collected some reviews from other people, who like it overall.

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Half the world’s beaches could disappear by 2100 due to erosion.

The natural phenomenon of beach erosion will worsen in the near future and may have more serious consequences than thought according to a study published in Nature Climate Change.
According to researchers, up to half of the world’s beaches could disappear by the end of the century due to the continuous rise in sea level caused by global warming climate change.

Sandy beaches are not few and cover up to 33% of the world’s coastline. As well as being popular meeting places, especially during the summers, they are also important on an environmental level because they act as a “buffer” protecting the coast and coastal ecosystems in general from the force of the waves and the erosion continuously brought by the sea.

The erosion of the world’s beaches will be accelerated not only by the rise in sea level but also by the growing population and wild urbanization that increasingly sees the construction of buildings of all kinds along the coast, right down to the beaches.
The study was carried out by scientists from the Joint Research Centre, an office set up by the European Commission. The researchers analyzed the data collected during 35 years of observation by satellites of the coast.

They combined these data with 82 years of climate forecasting and sea level rise data. By performing complex simulations, including storm events that could accelerate beach erosion itself, the researchers came to the above conclusion, which was in some ways very worrying.
However, they also came to the conclusion that limiting greenhouse gas emissions could prevent as much as 40% of the erosion predicted in these models.

In particular, the health levels of rivers and watercourses must be taken into account: these systems are characterised by an important action, that of transporting sediments which in turn act as material for restoring and maintaining the sand level of beaches.

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Scorpion fluorescence: scientists may find out what it’s for

Past studies have shown that scorpions emit a strange blue-green fluorescence when lit by dim moonlight or ultraviolet light. Since it is not known how scorpions themselves exploit this strange characteristic, some researchers have written a new study, the results of which were published in the Journal of Natural Products, finding that these animals emit a fluorescent substance from the exoskeleton, which could protect them from parasites.

In relation to the strange blue-green fluorescence of scorpions, discovered about 60 years ago, scientists have made some assumptions in the past. Some have speculated that this change in colour protected them from sunlight, while others have traced this to the increased chance of finding companions in the dark.
Also in the past, two fluorescent compounds, β-carbolin and 7-hydroxy-4-methylcoumarin, substances identified in the hard outer shell of scorpions or in the exoskeleton, had been discovered.

Researcher Masahiro Miyashita, together with members of his team, then re-analyzed these animals to find out if there were other substances inside their bodies.
After extracting samples from the exoskeletons of scorpions of the species Liocheles australasiae, the researchers discovered the presence of a phthalate ester, a substance that had previously shown antifungal or antiparasitic properties in other organisms.

This led the researchers themselves to suspect that this substance could help animals protect their bodies from parasite infections.
In addition, this substance, compared to the two compounds already identified in scorpion in the past, seems to contribute less to its fluorescence.

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Fish oil supplements associated with lower risk of cardiovascular disease

Regular intake of fish oil-based supplements may be linked to a lower risk of death from all causes and cardiovascular disease, including heart attack and stroke, according to a press release accompanying a new study published in The BMJ.
Fish oil has become a popular dietary supplement in many countries due to the presence of omega-3 fatty acids, substances that can help prevent cardiovascular disease.

To confirm this association, a team of researchers from China and the United States used a database of subjects from the United Kingdom, one of the countries where fish oil supplements are quite widespread.
The database counted more than half a million people, men and women aged 40 to 69 years, without cardiovascular disease or cancer. The follow-up lasted from 2006 to 2010. The researchers also used hospital records to consider possible hospitalizations or deaths.

Almost a third of the subjects then reported taking fish oil supplements regularly, at least at the beginning of the follow-up.
The researchers found that a regular intake of fish oil supplements could be associated with a 13% lower risk of all-cause mortality, a 16% lower risk of cardiovascular disease mortality, and a 7% lower risk of cardiovascular disease.

The association between the use of fish oil and cardiovascular disease was higher in people with hypertension. The results remained unchanged even after analyzing various risk factors such as age, gender, lifestyle, age, any medications used and use of other supplements.
The results can be explained, according to the researchers, in the fact that omega-3 fatty acid supplements show beneficial effects on blood pressure, cholesterol level and heart rate, things that naturally have a protective effect against the onset of cardiovascular disease.

As with any observational study, it is not possible to establish a direct cause, but the researchers themselves believe that a habitual use of fish oil may be associated with a lower risk of mortality for all causes and a lower risk of contracting cardiovascular disease.

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