Thursday, May 15, 2025

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Swedish study: High levels of PFAS in children’s purees and juices

Published 5 September 2024
– By Editorial Staff
Scientists warn that the high levels of PFAS could have negative long-term health effects.

High levels of PFAS are found in juices and fruit purees for children, according to a study by Örebro University and others. In several products, PFAS levels were higher than the permitted limits for drinking water in European countries.

PFAS stands for per- and polyfluorinated alkyl substances, a collective name for a group of more than 10 000 identified substances with varying properties and wide use in society. These substances are synthetically produced and very difficult for nature to break down, and some have been shown to be harmful to animals, humans and the environment

In recent years, various PFAS substances have been found to be widely distributed in the environment, including in water, but also in human blood, for example.

The study, a collaboration between Örebro University, Eurofins Food & Feed Testing AB and the PFAS Competence Center, examined the two chemicals trifluoroacetic acid (TFA) and trifluoromethanesulfonic acid (TFMS) in juices and fruit and vegetable purees intended for young children.

Higher levels than previously thought

The results show particularly high levels of TFA in hand-pressed oranges and orange juice It was also found in apple juice, but not at such high levels. High levels of TFA were also found in two of the nine purees tested The researchers are not surprised that the chemicals were found in the products, but are concerned about the levels The average level was 34,000 ng/L, with some samples reaching over 80,000 ng/L

– It was higher than I thought, said Leo Yeung, a researcher in chemistry at Örebro University, in a press release.

The researchers analyzed both conventional and organic products, with the organic ones generally having lower levels, although there were exceptions

Exceeding national values for drinking water

They also compared the levels of TFA in the products to national drinking water standards in Denmark, Germany and the Netherlands All samples exceeded the approved national values in the Netherlands, and a large proportion of the samples in Denmark and one sample in Germany exceeded the national drinking water values.

So, our investigation shows that some orange juices and some purees exceeded the limits set by Denmark, the Netherlands and Germany for drinking water, which could have potential health effects, says Yeung.

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Sweden stands out in new global mapping of economic power

Published today 7:13
– By Editorial Staff
Mark Zuckerberg, Jeff Bezos and Elon Musk are usually considered three of the richest - and most powerful - men in the world.

A new international database maps the world’s most economically influential power brokers – and Sweden stands out. In contrast to many other countries, outstanding academic credentials are rarely required to reach the top of the financial ladder here.

Who really controls the global economy? A group of 70 researchers has collected data on over 3,500 people from 16 countries who together account for a majority (54 percent) of the world’s GDP.

The results, presented in the new World Elite Database (WED), reveal both global similarities and national differences in terms of age, education, and background, with Sweden deviating significantly in one respect. Here, only five percent of the richest power holders have a doctorate the lowest figure among all countries surveyed.

These are CEOs and board members of large companies, those with the greatest wealth and people with the power to regulate the economy. The median age varies greatly: the American financial aristocracy is the oldest (62), while China and Poland have the youngest top echelons (55).

Place of birth also differs: in China, almost half of the elite were born in small villages, but only 1 percent were born abroad. In the UK, on the other hand, 45 percent of the richest were born outside the country, often in India.

– It is interesting to see that as much as 20 percent of the UK’s economic elite comes from the country’s former colonies, notes Håkan Johansson, professor at Lund University and one of the researchers behind WED.

“Not highly valued in Sweden”

Sweden’s economic ruling class is distinguished by its low level of education, even when compared to neighboring countries. In Germany, just over a third of those with economic power have a doctorate or equivalent, compared to one in twenty power holders in Sweden.

– It is quite clear that a doctorate is not highly valued in Sweden and is not necessary to reach the top of society, Johansson continues.

A master’s degree is most common among the elite, except in Argentina, Italy, and the UK, where a bachelor’s degree is more common. Those who have inherited their wealth have the lowest level of education.

To become part of the financial elite, a degree in economics is otherwise the most common route – except in China and Finland, where it is more common for those who have reached the “top” to be civil engineers.

In the UK, Poland, and Switzerland, law and the humanities are also highly valued at least 20 percent of the “top tier” have studied these subjects compared to less than 10 percent in the Nordic countries.

“Have enormous power”

Some may wonder why it is important for researchers to map the backgrounds and qualifications of those in power, but Håkan Johansson points out that this is a group that has an extremely large influence and that it is important to try to understand how and why they make their decisions.

– Economic elites are interesting because they have enormous power. They influence people’s working conditions, countries’ prosperity, and financial development. This is the first database of its kind, and many researchers will use it in their studies.

One example of research that would be interesting to do using the database is to link it to what economic elites actually do with their power, for example in studies of the climate impact of elites, he continues.

The World Elite Database (WED) is the result of an international collaboration between some 70 researchers from Chile, Denmark, Italy, France, Finland, China, Norway, Poland, Portugal, Russia, Sweden, Switzerland, the United Kingdom, Germany and the United States.

The database is currently only available to researchers and contains more than 3,500 names from 16 countries that together account for 54% of the world's gross domestic product.

The first scientific article based on the material was published recently in the British Journal of Sociology.

Robotic insects to revolutionize agriculture

Published 6 May 2025
– By Editorial Staff
An early version of the robotic insect from MIT.

Researchers are developing different types of robotic insects. The idea is that they will revolutionize agriculture when other pollinators are threatened with extinction, but also to be able to engage in surveillance.

Today, a large proportion of the world’s pollinators, such as bees and butterflies, are heading towards extinction, with the UN estimating that nearly 35% are threatened with extinction globally. However, robotic insects are not intended to replace real insects, but rather to develop agriculture.

Pollination is critical to the entire food industry, as 75% of the world’s food grown depends on pollination. Researchers at the Massachusetts Institute of Technology (MIT) believe that with artificial pollination, using robotic insects, farmers could in the future grow fruit and vegetables in multi-storey warehouses. This, in turn, is said to increase yields while reducing some of the harmful environmental effects of farming.

For some time, researchers have been working on developing various robotic insects. Earlier versions of the robotic insect consisted of four identical units, each with two wings, combined into a rectangular unit about the size of a microcassette.

Now, much smaller and more durable robotic insects have been developed. The new robots can hover for about 1 000 seconds, which is more than 100 times longer than previously demonstrated. At the same time, they weigh about the same as a paper clip and can fly much faster.

– Compared to the old robot, we can now generate control torque three times larger than before, which is why we can do very sophisticated and very accurate path-finding flights, said researcher Kevin Chen in a press release.

The goal is to achieve a flight lasting longer than 10,000 seconds. They also want to improve its precision so that it can land and take off from a flower, which it currently cannot do.

Photo: Harvard SEAS

Inspired by the crane fly

Researchers at Harvard University have also been working on developing robotic insects. RoboBee can fly, dive and hover like a real insect. The robot weighs only one-tenth of a gram and has a wingspan of three centimeters. The idea is that RoboBee could be used for artificial pollination, but also for surveillance and rescue operations.

However, researchers have long struggled to land it effectively, but now they have found a solution. Taking inspiration from nature, a seemingly graceful landing has been upgraded for RoboBee.

The crane fly spends much of its short life landing and taking off, and it has a strong ability to cushion the landing using its long legs that almost act as shock absorbers. Since the robot’s size and shape were already similar to the crane’s, the researchers chose to develop the robot’s legs like the crane’s.

However, RoboBee is still unable to fly without external energy and is wired. The idea now is to continue developing the robot.

– The longer-term goal is full autonomy, but in the interim we have been working through challenges for electrical and mechanical components using tethered devices, said researcher Robert Wood, from Harvard, in a press release.

New endocrine-disrupting chemicals detected in Swedish blood samples

Published 3 May 2025
– By Editorial Staff
It is still difficult to assess the extent of the negative health effects of environmental pollution.

A new group of environmental pollutants has been discovered in the blood of Swedes. Some of the substances may have a negative impact on fertility and may also be endocrine disruptors.

So-called synthetic phenolic antioxidants (SPAs) have been found in 30 blood donors in Stockholm, confirmed a study from Stockholm University.

SPAs are found in food packaging, chewing gum, clothing and skin care products, where they are often used to increase the durability of materials. Some of these substances are on the EU’s so-called candidate list, i.e. a list of substances of very high concern. This is because some of the substances can be endocrine disruptors and also negatively affect fertility.

Previous studies from China and the US have shown that the substances are present in both humans and the environment, and some in high concentrations. However, this is the first time it has been detected in the blood of Swedes. The levels are comparable or even higher than the levels of the more well-known PFAS substances, according to researchers.

This study is a first indication that we have a high exposure to SPAs also in Sweden. Studies on more individuals in different parts of Sweden need to be done to understand the extent of the problem, says researcher Josefin Engelhardt in a press release.

“Don’t know what the consequences will be”

One reason why SPA levels may have been missed in the past is because of the great care required when analyzing blood. Since SPAs are used in plastics and laboratory materials, it is important to be sure that it is the blood levels that are being measured and not substances added during sample collection. However, new methods have now been developed to analyze SPAs in blood.

The researchers say that we now need to find out where SPAs come from and also investigate their health effects, to best prevent them from spreading and affecting people and the environment.

We don’t know what the consequences of long-term exposure to these substances will be, but the fact that they are present in high levels in the blood is sufficient to act and reduce the levels in accordance with the Swedish Parliament’s environmental quality objective ‘A non-toxic environment’, says Engelhardt.

Young adults in Sweden feel shame about scrolling habits

Published 25 April 2025
– By Editorial Staff

Young adults in Sweden often feel ashamed of their mobile phone addiction and experience themselves to a high degree that they have an addictive behavior, according to research from the University of Gothenburg.

The study looked at how people between the ages of 20 and 35 view their own mobile phone use. It emerges that many consider themselves to be addicted and find it difficult to let go of their cell phones.

André Jansson, one of the researchers behind the study, believes that a form of culture has been created where it has become associated with social status to have the ability to reduce screen time and have control over their mobile phone use, something that many people feel they are unable to live up to in reality. Many also feel that they are wasting their time scrolling and ashamed that they cannot control it.

– When you can’t live up to that ideal, it creates a moral dissonance, you don’t use your smartphone in the way you would like to, Jansson told the state channel SVT.

 

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