Japan already knows how to get out of the demographic catastrophe in which it has sunk: with foreign babies

Japan seems to have found the key to solve its demographic crisisperhaps the most serious problem, entrenched and apparently unsolvable (apparently) that the country faces. The latest data of the Government show that last year the nation softened its birth rate thanks to babies born to foreign couples. Not only did they grow in net terms, they also grew proportionally, partially alleviating the disaster of Japanese households. It is nothing that many other countries have not experienced before, including Spainbut there, in Japan, the data fuels the debate on immigration. What has happened? That the latest statistics from the Ministry of Health, Labor and Welfare show that Japanese demographics are advancing at two very different rates. If we talk about Japanese households (local population), the birth rate is clearly declining, with around 41,000 fewer babies in a matter of a year. Things are, however, very different when we look at foreign couples. Among them, the same indicator has skyrocketed to almost total 23,000 babies3,000 more than in 2023. The global birth rate remains negative, but it casts little doubt on its demographic driver. What does the data say? That immigration is the lifeblood of Japanese demography. And without a doubt also. The government figures, which show the balance for 2024 and have been published by Nikkei, They reflect how immigration has softened the country’s population setback. In 2024, the government registered 22,878 births of “foreign citizens in Japan,” a label that identifies babies born to foreign parents or a single foreign mother. The data is interesting for three main reasons. First, because they represent 3,000 more than in 2023. Second, because if we look even further back to gain perspective, we see that it represents a growth of 50% in a decade. And third, because thanks to this trend, foreign newborns now account for 3.2% of all births in Japan. It is a percentage very similar to the weight of the foreign population in the country: 3.6 million on a total of 124 million. And Japanese couples? The opposite has happened with them. Among Japanese couples, 686,173 births41,115 less than in 2023. If the blow of that ‘hole’ was not greater in the country’s final census, it was precisely because the foreign birth rate grew to provide almost 23,000 babies. Particularly noteworthy is the number of children born to mothers of Chinese origin (4,237), Filipino (1,897) and Brazilian (1,351). The remaining 14,425 births are attributed to a much broader and more diffuse category called “other nationalities”, which include, for example, Vietnam or Nepal. How many foreigners are there in Japan? Not that many, actually. The Nikkei agency specifies that at least at the end of 2024 in Japan there were around 3.77 million resident foreigners, more or less 3% of the global population. It represents a historical maximum and, above all, a sufficient volume to have strained the migratory pressure between the hottest topics of the national public debate. It is especially relevant that the big surprise of the July elections was Sanseito, a populist party that stands out (among other things) for the harshness of his speech against foreigners and tourism. In fact their motto was “Japan first”with which it won 14 seats and became the third force in the opposition. Even the candidates to preside over the PLD, including Sanae Takaichiwho will probably be the country’s new prime minister, toughened their speech. Why is it important? Because it shows the extent to which Japan faces an existential dilemma. The increase in the foreign population has become a topic of debate, but at the same time official data show that right now it is its demographic float. And that is not a minor issue in a country that has long been mired in a deep birth crisis that is undermining its census and aging society, with all the implications that this entails at an economic, labor, social and health level or even for defense of the nation. Is the situation so serious? In 2024 the country lost more than 900,000 people, a historic collapse that left its global census around 124.3 million of people, far from the maximum 126.6 million registered in 2009. Not only that. The ‘national’ birth rate (among Japanese) stood at its lowest level since there are records (1899) and the country has seen how those over 65 years of age have come to represent around 30% of the global population. Among foreign residents, 56% They move between 20 and 30 years old. Images | Yanhao Fang (Unsplash) 1 and 2 In Xataka | Japan has found the three most serious problems with the massive arrival of tourists. And none of it has to do with tourists.

loads the dishwasher, runs washing machines and even folds the clothes

The robot that takes care of all household chores is no longer just in science fiction movies. The Figure 03 is capable of doing complex tasks such as load the dishwasher, put on washing machines and even fold clothes. And most importantly: its creators are determined to mass produce it. Figure 03: The ultimate robotic butler Figure continues to improve its humanoid robots for the home and the Figure 03 is its most powerful bet to date. They have made it lighter (61kg, compared to 70kg for the previous model) so that it can be maneuvered more easily around the house. They have also changed their finishes and now instead of hard pieces, they have parts covered in foam and soft fabric. It has an autonomy of 5 hours and can move at a speed of up to 1.2 meters per second. What’s impressive is how much it can do. In a video of more than six minutes, Figure shows off all the capabilities of his new robot. In it we see how the robot cleans up the living room, takes the dirty dishes to the dishwasher, puts on the washing machine, then the dryer and He even folds the clothes. Of course, he doesn’t fold the t-shirts very well and we haven’t seen him hanging the clothes or ironing either, two of the most tedious household tasks. It seems there is still room for improvement. Figure 03’s brain helix is the brand’s AI model that combines vision, language and action. This system allows you to learn new tasks simply by observing humans, that is, it is not programmed to do a certain series of actions, but rather We can teach you new things. To do this, it has a system of sensors, cameras and microphones that allow it to receive orders, observe and replicate actions with precision. One of the new features of this new version is that has chambers in his hands to improve grip on objects, even if its main cameras (in the head) are hidden, for example when reaching into the dishwasher to put down a plate. The touch sensors have also been improved and it is capable of making grips with just 3 grams of pressure. Designed for mass production Figure is determined to fill the houses with robots and Figure 03 is designed for mass production. To achieve this, the company has designed a new supply chain and even has built a factory in California where this model will be manufactured. The company claims to have been an entire year designing a new supply chain with partners worldwide to ensure a constant flow of parts and materials. In addition, they rely on mass manufacturing methods, such as injection molding and pressure casting. They have also taken into account the ease of assembly to optimize time on the production line. The goal of Figure is for the production line to be capable of manufacture 12,000 robots the first year, but they hope that in the future it will grow and reach 100,000 robots in the next four years. What they have not said is what we are all wondering, and that is how much one of these domestic robots will cost, a key point for that massive revolution that they promise from Figure. Images | figure In Xataka | “Humanoid robberies are a fantasy”: iRobot co-founder believes there is a robotics bubble

Ten banking giants are going after stablecoins. They are trying not to miss the digital money train

A consortium of ten of the world’s largest banks, including Bank of America, Goldman Sachs, UBS, Santander and BNP Paribas, have announced that they are exploring creating their own stablecoins, according to Reuters. Why is it important. It is the first time that a consortium of this magnitude has officially reacted to the threat posed by stablecoins (stablecoins) for your business. What has happened. The consortium has made this announcement regarding this development. They would be digital assets anchored 1:1 to the main G7 currencies (dollar, euro, pound, etc.) and, key, they would work on public blockchains, the same technology used by the crypto world. The advertisement seeks to stand up to the absolute dominance of Tethera single company that currently manages a volume of 179 billion dollars outside the traditional banking system. The small print. This movement does not come so much in a context of innovation as in a crisis management room: The money that Tether moves is money that escapes the control and commissions of the SWIFT system. The bank is not creating something new, it is trying to build its own version of something that already exists, works on a large scale and is taking over their ground. The great contradiction is that, to compete, they must use a technology (blockchain) designed explicitly to eliminate intermediaries. The business model of a bank is, precisely, to be that intermediary. They are forcibly adopting the foundations of technology that threatens to erode an increasing part of their business. And now whatand. The ball is now in the court of governments and central banks. For a regulator, a stablecoin issued by a private bank continues to be a threat to monetary sovereignty. This movement only serves to hurry them up in the development of their own digital currencies (the famous CBDC). A CBDC controlled by the European Central Bank or the Federal Reserve could, in the long term, render obsolete both stablecoins of Tether as those now proposed by banks. The banking consortium, in its attempt not to be left behind, may have only managed to accelerate the arrival of a much more powerful competitor: the State itself. In Xataka | It is not bitcoin or Ethereum: Tether is the stablecoin that has turned its creators into emperors of finance Featured image | Alicja Ziajowska

How to block the update to Vega OS on Fire TV so as not to lose your favorite apps

Let’s tell you how to block your Fire TV from updating to Vega OSto avoid losing access to your favorite Android-based applications. Vega OS is the new Linux-based operating system created by Amazon from scratch, which comes to replace the Android-based Fire OS. This new operating system brings many improvements in performance and fluidity, but you will no longer be able to use Android-based apps. Over time, it is possible that many of these apps will be adapted and created for the new system, but many will surely take a while to arrive. Therefore, now that Vega OS begins to arrive, we are going to tell you how to block update. Let’s tell you two different ways to block the updatealthough they are quite radical. There is no specific option to avoid it, meaning you will have to close internal doors in a different way. Prevent Fire TV from communicating with Amazon Perhaps the most radical option is to prevent your Fire TV from connecting to the Amazon servers that distribute operating system updates. For this, you will have to block some domains from your own router, something that is not complicated, but requires knowing enter router settings. To do this, you have to enter your router’s settings from your computer’s browser, typing the IP addresses 192.168.1.1 or 192.168.0.1 in the search bar. Once inside, put your Fire TV in the list of connected devicesand if possible assign it a fixed IP with the DHCP reservation. Now, in the configuration of your router you have to look for a section called Parental Control, Security, Web Filters or Firewall, depending on the model and manufacturer. In here, you will have to add Amazon domains to blockwhich would be softwareupdates.amazon.com, updates.amazon.com, amzdigitaldownloads.edgesuite.net and amzdigital-a.akamaihd.net. Once you do this, go into your Fire TV settings, click on Aboutand then in Check for updates. If no new updates are detected or operating system versions, then it is because this restriction has worked. Disable update processes The other option is simpler, although also more delicate as it has to use third-party applications, which always poses an extra risk. It is about disable processes to check for and install updates from your Fire TV, something you can do with tools like TroyPoint Toolbox either TechDoctorUK Debloater from the device itself. Now you have to download and install the application Downloader from the Amazon App Store, Amazon’s app store. But don’t open it, before doing so go into Settings > My Fire TV > Developer Options and activate the options ADB Debugging and Unknown sources. Now open the app Downloader and write the code 250931which will take you to the TroyPoint Tools Installer. In this installer, download and install the application Debloater TechDoctorUK. Now you have to open the application and grant it permissions USB debugging when requested. Now, check the list of system processes in this application, and you should mark those that manage automatic updateswhich usually include terms such as system updates. When you do, click Reproduce in the upper right corner to apply the changes. Remember that this may also affect the correct functioning of the Fire TV. In Xataka Basics | Alexa+: what is Amazon’s new smart assistant, how it works and what is its price and availability

the strange case of the brain tumor that went unnoticed for 30 years

Imagine being laughing for no reason at all, no a laugh of joy for having heard a joke, but rather a hollow, distressing laugh that you cannot stop. For a 31-year-old woman, this was his reality since he was a baby and for everyone around her this was a simple ‘tic’ or ‘strange’ behavior on her part. But in the end it turned out to be something much more serious: a brain tumor. A clinical case that is undoubtedly exceptional and that has deserved a publication in the journal Epilepsy & Behavior Case Reports. And it is not only rare because of its symptoms, but also because of the evolution it has had, which a priori has been completely benign. Something that until now had not been documented in anyone, being exceptional. The laughter. Since childhood, the patient experienced episodes of brief, joyless laughter. Before each episode, she felt a tightness in her neck and chest, a kind of “feeling of anguish” that was warning her of what was coming. Seconds later, laughter broke out, during which she remained conscious, but distressed because no one likes to do something they don’t know why they are doing. Furthermore, without controlling the social context where it occurs. It all also adds up to a very distressing condition such as having difficulty breathing, red skin, inability to swallow or even ending up crying while laughing. But within all this there was good news: although in the past the attacks were more frequent, reaching up to 6 or 7 attacks a day that even woke her up at night, over time they became milder and briefer, lasting just one or two seconds. This allowed him to hide them on most occasions. A late diagnosis. For years the cause was a mystery. The woman underwent a brain MRI and several electroencephalograms that were reported as normal. He was even prescribed treatments with levetiracetam and lamotriginewhich had no effect and were abandoned. The key came with a second, more detailed MRI. This time, specialists found the culprit: a tiny 5mm abnormality in the hypothalamus, consistent with a hypothalamic hamartoma (HH). A hamartoma is a congenital malformation, similar to a tumor, which in this case was causing the laughter attacks. The final diagnosis was “gelastic crises secondary to a hypothalamic hamartoma”, that is, a very specific type of epilepsy. A unique case. This case is really special, but not because of what was found in the MRI, but because normally the findings are associated with very serious symptoms such as epileptic seizures or cognitive impairment. But in this case none of these problems developed. On the contrary, he led a completely normal life with university studies and a stable job in the local administration that did not cause him any difficulties. And all this without having prescribed medication. So the question in these cases is mandatory: why? The authors are not at all clear about an answer to this question. The most likely explanation is that the size of the hamartoma was exceptionally small. It has been seen in the literature that hamartomas larger than 1 cm in diameter were associated with more severe crises of the “gelastic plus” type. But the small size together with a very specific location probably explains both the mildness of the attacks and the absence of the rest of the serious symptoms. Images | OurWhisky Foundation In Xataka | That a reporter runs after a pig is the best summary of what we want from AI: videos to break the bank

These televisions are today (October 13) at outlet prices: models from 169 euros

The television is one of those essential devices, for the vast majority of users, in any home. If you are thinking of renovating yours or want to buy one for a bedroom or even the kitchen. Today, we have found some bargains on TVs that may interest you. Daewoo 43DM56UV by 169 euros: 43-inch LED and with Android TV operating system. Toshiba 43UV3463DG by 229 euros: 43-inch Direct LED and 4K Ultra HD resolution. Philips 50PUS8010 by 329.99 euros: 50 inches and with Ambilight. Hisense 55E7NQ Pro by 499 euros: 55-inch QLED with 144 Hz. Samsung TQ75Q64DAUXXC by 949 euros: 75-inch QLED and with Tizen. Daewoo 43DM62UA We begin our compilation with one of the cheapest televisions that you can find on the Carrefour website. It’s about this Daewoo 43DM56UVwhich presents a very good quality-price ratio. Its usual price is 219 euros, but now it is reduced to 169 euros. This cheap TV has a 43 inch LED panel and with 4K Ultra HD resolution. Its two speakers offer a power of 16 W and it comes with Android TV operating system. It integrates WiFi, Bluetooth and Ethernet and comes with three ports HDMI and two USB 2.0 ports. The price could vary. We earn commission from these links Toshiba 43UV3463DG Another of the cheap TVs that you can buy at Powerplanet is this one Toshiba 43UV3463DG. Usually, it costs 299 euros, but now it has a 34% discount applied, which means that you can purchase it for 229 euros in these moments. This smart TV mounts a panel 43 inch Direct LED with 4K Ultra HD resolution. Its speakers offer an RMS power of 16 W and it comes with VIDAA operating system. It is compatible with HDR10 and Dolby Vision and is also compatible with Google Assistant and Alexa. Toshiba DLED 43″ 43UV3463DG UltraHD 4K VIDAA The price could vary. We earn commission from these links Philips 50PUS8010 If you want to have a TV with Ambilight at home, this model on offer at PcComponentes will interest you. Now, you can get the Philips 50PUS8010a 50-inch model that usually costs around 350 euros, but now you can take it for 329.99 euros. This TV mounts a 50-inch LED panel with 4K Ultra HD resolution. It works under Titan OS operating system and has the lighting system Ambilight. Its two speakers offer a power of 20 W and are compatible with Dolby Atmos and it comes with three HDMI 2.1 ports, two USB ports and is compatible with Alexa and Google Assistant. Philips Ambilight 50PUS8010 4K LED Smart TV The price could vary. We earn commission from these links Hisense 55E7NQ Pro Another of the bargains on televisions that are worth it at PcComponentes is this one. Now, you can take this smart TV Hisense 55E7NQ Pro. With a 28% discount. Its usual price is 569 euros, but now you can get it for 499 euros. It is a TV with a 55-inch QLED panel with 4K Ultra HD resolution and 178º viewing angles and compatible with HDR10+. Its speakers offer a power of 40 W and are compatible with Dolby Atmos and DTS Virtual:X. It has a refresh rate of 144 Hz and AMD FreeSync Premiummaking it ideal for gaming). Finally, it can be noted that it works under the VIDAA operating system. Hisense – QLED TV 139 cm (55′) Hisense 55E7Q Pro, UHD 4K, Smart TV. The price could vary. We earn commission from these links Samsung TQ75Q64DAUXXC And if what you are looking for is a large TVthis 75-inch Samsung Q64A is another of the bargains that you can find now at MediaMarkt. Its usual RRP is 1,079 euros, but now it is available for 949 euros. Assemble a panel QLED with a diagonal of 75 inches and 4K UHD resolution. It supports HDR10+ and comes with Filmmaker Mode. Works under the operating system tizen and it has speakers with a power of 20 W. Finally, it is worth mentioning its connectivity section, since it integrates WiFi 5, Bluetooth 5.2, Ethernet, three HDMI, two USB and optical audio output. Samsung QLED Q64D 75″ 4K UHD Smart TV AirSlim Quantum HDR Q-Symphony The price could vary. We earn commission from these links Some of the links in this article are affiliated and may provide a benefit to Xataka. In case of non-availability, offers may vary. Images | Webedia, Daewoo, Toshiba, Philips, Hisense and Samsung In Xataka | Best home theater projectors. Which one to buy and five recommended models from 299 to 18,000 euros In Xataka | Best sound bars in quality price. Which one to buy and seven recommended models from 140 euros

Europe has found the antidote to Russian drones. So demand for a 100-year-old gun has skyrocketed.

The war in Ukraine has become an immense laboratory for new war technologies, but it has also reminded us that beyond the sophistication of modern artillery, the experience of the past remains a weapon as powerful as any missile. we have seen optical illusionsthe return of the horses or weapons 1940’s vintage. In fact, Europe is arming itself against Russia’s hybrid war with a 100-year-old weapon. The resurgence of a legend. The war in Ukraine has returned a veteran of more than a century to the front line: the M2 heavy machine gun Browning, symbol of 20th century war engineering and now a key piece in the arsenal of modern armies. Designed in 1921 by John Moses Browning and mass produced during World War II, the M2 (capable of firing .50 caliber projectiles at a rate of up to 600 rounds per minute) has once again proven indispensable, especially on the Ukrainian front, where it is used on civilian trucks to shoot down Russian Shahed drones. Its mechanical simplicity, extreme reliability and devastating power have made it a weapon with no direct substitute, and its use has contributed to a surge in global demand reminiscent of the most intense years of the Cold War. Industrial boom. The rebirth of this icon runs parallel to the FN Browning expansionthe historic Belgian firm that from its headquarters in Herstal manufactures not only the M2, but also the FN MAG and FN Minimi (known in the United States as M240 and M249) along with FN SCAR rifles and ammunition of standard NATO calibers. After decades of relative calm, its production of machine guns has been doubled compared to 2022, and the demand for ammunition has quadrupled. Although the company does not sell directly to Ukraine, its contracts with allies such as the United States, the United Kingdom or France have grown exponentially. France, for example, has recovered thousands of M2s abandoned by US troops in 1945 for FN to modernize and return them to service with “like new” guarantees. The conflict has revived interest not only in new generation weapons, but also in those that have proven to be reliable under any circumstances. Economy of rearmament. The war has awakened a cycle of massive rearmament in Europe, with more than 930,000 million of dollars committed through 2030, and FN Browning has become one of the epicenters of this military reindustrialization. Despite a stable business volume (1.3 billion euros in 2024, after the acquisition of the ammunition producer Sofisport), the company is expanding its workforce and increasing the production of weapons and ammunition by thousands of units annually. The stagnation of its sports division, which flourished during the pandemic, contrasts with the avalanche of state contracts that consolidate its strategic role within the European defense ecosystem. The machine gun market, relegated for years, is experiencing a second youth marked by the urgency of replenishing depleted arsenals after the massive shipment of weapons to Ukraine and the perception of a persistent Russian threat. Classic weapons, modern warfare. The Ukrainian conflict has shown that even in the era of artificial intelligence and drone swarms, classically designed weapons still play a critical role. The M2 they have adapted to unmanned ground platforms and remote stations controlled by AI to improve precision in the fight against drones. F. N. Browning collaborates with technology firms to integrate automatic target recognition systems into their turrets, anticipating a convergence between mechanical tradition and algorithmic warfare. At the same time, European militaries, after decades of disinvestment, are faced with the need to rebuild their heavy fire capabilities from the ground up. From the past to the future. The longevity of the M2 It is a testament not only to its design, but also to a cyclical military reality: modern wars continue to depend on the reliability of steel and gunpowder. From the beaches of Normandy to the fields of Donetsk, this machine gun has accompanied Western armies through a century of changing conflicts, and today it once again symbolizes resistance in the face of technological adversity. For FN Browning, the resurgence of its most emblematic weapon marks not only the most active moment since the end of the Cold War, but also the beginning of a new era in which war tradition and digital innovation march, once again, at the same pace. Image | Wikimedia Cominos In Xataka | Europe has decided to take action against Moscow’s hybrid war. So Germany has started hunting for Russian drones In Xataka | “Why don’t we shoot?”: in the face of Russian drone incursions, Ryanair has its own alternative to the European wall

semiconductor control

The Dutch government has taken control of Nexperia, a semiconductor company based in the Netherlands but owned by China. To do this, it has used its “Law of Availability of Assets” for the first time. And with this he has made the chip war face a new and tense episode. what has happened. Nexperia is a chip manufacturer that was spun off from the Dutch company NXP Semiconductors. In 2017 Nexperia was acquired for $2.75 billion by a Chinese state-backed consortium, and became majority owned by Chinese technology group Wingtech in 2019. As indicated in Financial Timesthe company has now been unexpectedly seized by the Dutch government, which has alleged “serious deficiencies in governance and actions.” That allows Dutch Economy Minister Vincent Karremans to take de facto control over Nexperia’s operations. Objective, protect Europe’s chips. It is the first time that Holland makes use of its “Law on Availability of Assets.” The economy minister assured that the decision was made due to “a threat to the continuity and safeguarding of crucial technological knowledge and capabilities in Dutch and European territory.” Nexperia produces used chips in the European automobile industry and in consumer electronics. Geopolitical tension. The Dutch government’s intervention in the company has escalated rapidly in recent days. In early October, several court decisions suspended the powers of Nexperia’s Chinese CEO, Zhang Xuezheng. A court later ordered that he be succeeded by a non-Chinese director with decisive voting power, in addition to transferring almost all of the shares to custodial management. Wingtech officials have called the decision an “act of excessive interference driven by geopolitical bias.” It was already on the “entity list”. The United States has already added Wingtech to its particular commercial blacklist —the famous “entity list”— in 2024, accusing it of helping China obtain sensitive semiconductor manufacturing technology. That forced US companies that wanted to work with Wingtech to obtain a specific license, and doing so is not easy. Restrictions on trade even with subsidiaries of companies on that list have become even more complicated a few weeks ago, which made working with Nexperia, a subsidiary of Wingtech, even more problematic. The chip war intensifies. This technological seizure is another clear symptom of the growing geopolitical reconfiguration that we are experiencing in the technological field. We are passing from the era of economic globalization to an era of technological sovereignty and national security. For decades, market efficiency caused companies to seek global ownership and production even in critical sectors such as semiconductors. This decision by the Dutch government once again signals the end of that era of complacency in which if a Chinese company acquired a vital chip company on European soil nothing seemed to happen. Now it happens. The Netherlands had already made things difficult for Beijing. If there is a leading technology company in Europe Nowadays that’s ASML. This semiconductor giant has an effective monopoly on photolithography machines SVU and High aperture SVU. The sanctions of the US and its allies ASML is prevented from selling in China its most advanced lithography equipment. Holland was therefore already one of China’s great “enemies” in this chip war, but the movement with Nexperia goes even further. And meanwhile, rare earths and tariffs. The seizure of Nexperia is the new chapter in this recent escalation of events that was reactivated last week. China imposed new restrictions on rare earth exportwhich caused the US government will increase tariffs by 100% to Chinese imports. Tension is increasing, and the chip war could have enormous consequences for the global economy. We are already seeing it in the stock markets: the announcement of the tariffs caused a notable drop in both the stock markets like in the cryptocurrency market. We will see how this new move by the Dutch government affects these assets. In Xataka | The biggest obstacle preventing China from winning the chip race is called ASML. So they’re trying to copy it

Having many children sounds great as a way to preserve the species. Until you start passing genetic mutations

Men do not have a limit marked by nature in which a ‘stop’ is applied when it comes to having more offspring (such as if women have), although little by little it is becoming more complicated. But even if there is no such limit choosing to become parents at an older ageis not the most recommended due to the great risks it has, as pointed out a published study in Nature magazine recently. Risk age. The idea that the age of the mother It is a crucial factor for the baby’s health is deeply rooted in the collective consciousness and has been seen to Older age is associated with diseases such as Down syndrome. However, science has been accumulating evidence for years that the father’s age also plays a fundamental role. We already knew that about 80% of new genetic mutations (those not inherited from either parent) come from the paternal germline. What we didn’t know was the magnitude of the mechanism that accelerates it. Selfish sperm. The team of researchers from Wellcome Sanger Institute in the United Kingdomled by Raheleh Rahbari and Matthew Neville, has put a name and surname to the problem: selfish selection of spermatogonia. In simple terms, this means that certain genetic mutations not only alter a gene, but give a competitive advantage to the stem cells that produce sperm (spermatogonia). These mutated cells replicate faster and more efficiently than their healthy counterparts, so they will predominate ahead of the gametes that are suitable. As a result, as the years go by, the percentage of sperm carrying these “selfish” mutations increases exponentially, not linearly, and this results in a man in his early thirties having 1 sperm in every 50 with a disease-causing mutation. But when you reach the age of 70, this figure shoots up to 1 sperm in every 20. How it has been seen. To reach this conclusion, scientists needed highly precise technology, since right now standard sequencing methods have an error rate that can make it difficult to see a specific mutation. This is where a technique called duplex sequencing (NanoSeq). Its operation is very simple, since instead of reading a single strand of DNA, this method reads both strands of the double helix. If a mutation is detected on both strands in exactly the same place, it is virtually impossible for it to be a machine error. It is a real mutation. Thanks to this precision, they were able to analyze more than 35,000 mutations in the sperm of 81 men between 24 and 75 years old. In this case, the results identified more than 40 key genes where these selfish mutations tend to occur. Most are associated with serious neurodevelopmental disorders, such as autism itself or even increasing the probability of suffering from cancer throughout the offspring’s life. Genetic sanctuary. Interestingly, the study revealed a surprising fact when comparing the mutations in the sperm with those in the blood cells of the same men. In the blood, the impact of lifestyle was evident: men who smoked, drank alcohol excessively or were obese had a much higher mutation burden. However, no correlation with these factors was found in sperm. The mutations accumulated at a rate eight times slower and seemed immune to the individual’s habits. This suggests that the testicles function as a biological “sanctuary,” a protected niche that the body strives to keep safe from harmful environmental factors. Family planning. Logically, when making the decision to reproduce this changes many things, since to avoid this accumulation of mutations it would be interesting to do it the younger the better. Both in the case of men and women. But the reality we have in our society is that family conciliation has not yet been achieved, and this means that becoming mothers and fathers has to be delayed. In this way, the study points to the possibility of including sperm freezing at an earlier age if considering having children or considering genetic screening techniques for elderly parents. Although all this has a cost behind it. In Xataka | Someone thinks they know why fertility is plummeting around the world: men and women are doing “better” separately

In reality, it hides elevators that take boats up through the heart of a mountain

Let’s imagine a ship that, instead of descending through locks, rises up a mountain inside a chamber of water. That’s exactly what happens in Goupitana dam in southwest China where the difference in level between the reservoir and the river reaches almost two hundred meters. To overcome this gap, engineers designed three consecutive elevators capable of transporting boats of five hundred tons. It is a system that combines the scale of a hydroelectric dam with the precision of a clock and has once again transformed the Wu River into a continuous navigable waterway after more than twenty years of interruption. For years, the Wu River was a natural highway for Guizhou. From its mountains, barges descended towards the Yangtze loaded with minerals, cement or fertilizers. Everything changed with the construction of large hydroelectric dams in the early 2000s: the reservoirs generated power, but completely cut off shipping. Between 2009 and 2016 there was no continuous navigable passage in Goupitán: the goods had to be unloaded before the damget on trucks, go around the mountain and embark again upriver. That transshipment could take one or two days and cost more than 20,000 yuan per barge, an obstacle that discouraged river transport and made the local economy more expensive. Three elevators, the same river and a mountain in between Goupitan is not one boat lift, but three that work in series to allow the river to become navigable again. Each one overcomes a part of the unevenness and, between them, a connection channel It combines tunnels dug into the mountain and an aqueduct suspended over the valley. According to the Guizhou Department of Transportationthe group forms a route of just over two kilometers where they can operate barges standard five hundred tons. The design distributes the total elevation into three sections, with a fully balanced central level and two submersible-type ends. This system became the first in the world in applying three consecutive elevators within the same project and in achieving an unprecedented single level elevation of 127 m. The investment was around three billion yuan (about 400 million euros), and the infrastructure can move almost three million tons of cargo per year. The operation of Goupitan is based on a principle as simple as it is effective: that of balance. Each ship enters a chamber filled with waterso that the total weight hardly changes when the boat floats inside. This almost constant mass is compensated by counterweights and steel cables that raise and lower the drawer with a precision of centimeters. The first and third elevators are submersible type, with the box that sinks into the water to equalize levels, while the central one uses a fully balanced system, similar to a conventional elevator but on a monumental scale. Electric motors drive the drums that wind the cables, and the entire operation is controlled by sensors that measure tension and position in real time. If they detect a deviation, the system stops immediately. Three years after the hydroelectric dam came into service, navigation works began. For almost ten years, the place was transformed into an engineering laboratory. Navigation tunnels had to be opened under the rock, metal towers had to be erected and the steel caissons had to be assembled by hand inside the valley. In June 2021, a boat five hundred tons completed the journey of the three elevators, marking a milestone. In 2023After the latest inspections, the Ministry of Transportation declared the system operational and handed it over to the provincial authorities for commercial exploitation. Once in service, the system operates as a synchronized chain. The complete transit through the three levels takes approximately 38 minutes, according to official data. The process is automated: sensors, cameras and a central control room manage the gates, water pressure and cable movement. The impact was noticeable from the first day. In November 2021a convoy of fourteen barges carrying seven thousand tons of phosphate completed the journey of the three lifts and marked the official return of navigation on the Wu River after more than twenty years of interruption. Since then, river traffic has established itself as a real alternative to road transport, with lower costs and a much smaller environmental footprint. For Guizhou, a landlocked provincethat difference is strategic. The Wu River connects with the Yangtze and, through it, with the port of Shanghai. The reactivation of traffic makes it possible to export minerals and construction materials directly from the interior and, in turn, receive raw materials without depending on land transportation. Maintenance tasks are constant. Each elevator undergoes daily inspections and more in-depth checks every few weeks. The technicians, for their part, have received specific training to operate the machinery. Keeping such a structure in balance requires the same precision as building it and close operational coordination with the exploitation of the reservoir. Goupitan’s system changed the map of boat lifts. Until its entry into operation, the reference was the elevator the Three Gorges Damwith a difference in altitude of 113 meters. In Europe, the Strépy-Thieuin Belgium, with 73 meters, and the Falkirk Wheel Scottish, a rotating structure of 35. None approaches 199 meters that covers the whole of China nor the 127 of its central section, the highest individual elevation recorded to date. The Goupitan boat lift is nestled in one of the most rugged landscapes in southwest China. The river meanders between forest-covered mountains and villages scattered on the banks. Official photographs taken with drones show the real scale of the complex: three gigantic chambers connected by tunnels and aqueducts, with ships that appear tiny as they ascend. The contrast between industrial precision and the geography of the valley explains part of the visual impact of seeing them in motion. Although its purpose is strictly logistical, The place has attracted the attention of curious people and visitors. From the road that borders the reservoir and the access to the damand get panoramic viewsand media coverage has popularized aerial images of the maneuvers. Images | Guizhou Government In Xataka … Read more

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