CERN physicists believed that symmetry between quarks up and down is broken. Is much more than they expected

The quarks, the elementary particles that constitute the protons and neutrons of the atomic nucleus, are fermions. And the electrons, too. There are several typesalthough physicists like to talk about ‘flavors’: up (UP), below (Down), charm (Charm), strange (Strange), Cima (top) and background (Bottom). The most frequent in ordinary matter They are the quarks up and downalthough top is very interesting for a curious reason: it is The heaviest elementary particle that we can find in nature. An interesting note since we move in the field of fermions: supersymmetry is a theoretical model of particle physics that proposes the existence of a hypothetical particle that is matched with each of the fundamental particles we know. PSIANS EXPLAIN THE EXISTING RELATIONSHIP Among the bosonsthat have a spin with whole value, and the fermions, which have a semientero spin. However, it is important that we do not overlook that it is a hypothetical theoretical framework that, therefore, has not yet been observed in nature. Not even experimentally. Physicists still do not understand how quarks and gluons combine The strong nuclear interaction, which is one of the four fundamental forces of nature, is the “glue” that keeps the quarks together to give rise to protons, neutrons and other hadrons. It is also responsible for the cohesion and stabilization of the nucleus of atoms. Until now, particle physicists considered that this force interacts with all quarks, regardless of its flavor, in the same way. This mechanism is known as isospin symmetry and respects, yes, the differences that exist between the masses and the electric charges of the quarks. A kaon is a subatomic particle constituted by a quark and an antiquark, but not by any quark; It is a strange quark According to Isospin symmetry, the collision of heavy ions, which are atoms or molecules that have acquired positive or negative global electric charge due to the loss or gain of electrons, should essentially generate the same amount of kaons with electric charge and neutral kaons because The mass of the quarks up and down is similar. An note before moving forward: a kaon is a subatomic particle that is constituted by a quark and an antiquark, but not by any quark; It is a strange quark. The presence of the latter gives them very peculiar properties, so studying them is very useful to understand the characteristics of the subject a little better. What has surprised CERN physicists is that The Na61/Shine experiment has evidenced that Isospin’s symmetry is not fulfilled. And does not do so because heavy ion collisions generate a very large imbalance between the production of loaded kaons and neutral kaons. In recent years, physicists suspected that a certain degree of imbalance could be given, but what they did not expect is that this difference was so great. This is very important for a reason: current theoretical models have difficulty explaining it. It may seem like a problem, but it is not at all; It is an opportunity. In particle physics when such a discrepancy appears What is happening in your experiments. This particular disparity has the ability to help them better understand how strong nuclear interaction works and how quarks and gluons are combined to give rise to the production of hadrons. Image | Cern More information | Cern In Xataka | “If we get our goal, a revolution in physics will be triggered”: we talk to Santiago Folgueras, a physicist of CERN

Social Security has published the work of work casualties in 2024 and we have bad news: we have broken a record

Spain is living A worrying phenomenon: Labor casualties have reached a new historical maximum in 2024, marking a trend that marks its fourth year up and does not seem to be. Demographic aging, saturation of health or improving employment figures are the main suspects. Record in work casualties due to illness. The increase in Low for temporary disability It is not only a perception of entrepreneurs, but a reality backed by Official security data Social of 2024 that has just been published. According to The published by The countrySocial Security records reveal that the average prevalence of temporary disabilities for common contingencies (those not directly related to the work) reached its highest historical percentage: 53.3 per 1,000 employees in 2024. That of autonomous professionals is 39.8 per 1,000 employees. A high cost for the economy. According to the report ‘Labor absenteeism for common contingencies’ Prepared by the employer Asedas and the association of mutual accidents at work (AMAT), in Spain in 2024 8,716,663 casualties for diseases and non -work accidents occurred, which meant a cost of more than 28,987 million euros in social security benefits of social security and direct cost for companies. This expense has increased by 99% in the last six years. The average time that a worker remains medical leave due to temporary disability is 39.2 days by professional contingencies (those directly related to work activity), while for self -employed professionals it increases to 106.5 days. The aging of the workforce. One of the main reasons behind this increase in medical casualties due to common contingencies is the general aging of the population and, with it, a greater tendency to get sick. According to data from the Employers of Mutual Amat, more than half of the work casualties occur in the 31 to 51 -year section. The INE data They point out that more than 35% of workers in Spain are 50 years or older and ‘Study on the aging of the templates in the General State Administration and future projection at 2030’ It points to that in 2023, the peak of the demographic pyramid will reach the strip between 50 and 60 years. According to data of The independentif we compare the current 50 and 60 -year -old strip with that of 2002, it has increased by 169%, while the segment of between 16 and 24 years has fallen 36%, and the one aged 25 to 34 has done 20%. The collapse of public health. The worsening of public health also directly affects the resolution of the casualties due to temporary disability, since, in many occasions, these casualties are lengthened more than necessary by waiting lists in diagnostic tests and surgical interventions. The official data of the Ministry of Health of December 2023 (the last available) indicate that Spain registered a record of 849,535 people in surgical waiting lists. This figure represents almost twice as many people in this comparative situation With the data of 20 years ago. The average waiting time for surgery (in 2023) was 128 days, which practically double the 77 days of 2003. Mutuals can help. The increase in labor casualties not only affects workers, but also a significant blow to the Companies productivity. Unions, employers and social security They have reached agreements so that mutuals have a greater prominence with the aim of decongesting the waiting lists of public health. This public-private collaboration frame is intensified mainly in casualties due to temporary disability with traumatic pathologies, in which mutuals achieve expedite tests and treatments necessary reducing the medical leave time and saving several billions of euros to companies and social security. In Xataka | The last idea of ​​the government in labor matters: a “flexible” decrease that allows at the same time to work In Xataka | Cádiz’s ghost official: six years without going to work and charging his payroll. They caught him when they were going to give him a prize Image | Social Security, Unspash (Owen Beard)

The videos of AI have broken the Instagram and Tiktok algorithms. Welcome to the new “AI landscape”

A little over a month ago This unpleasant video De Instagram went viral in that social network. In him a strange creature half -spider of a man made a strange appearance in a mall. At this time the video has 3.5 million “like” and more than 23,000, but the truly worrying is not that. Collapse of the videos generated by AI. What is worrisome is that this video is part of an avalanche of videos generated by AI that is collapsing networks such as Instagram or Tiktok. And broken algorithms. As they explain in 404 averagethe algorithm of these platforms has ended up breaking through a unique brute force attack. One in which these networks do not stop receiving content generated by AI to end up saturating those recommendation algorithms. A LEA. Brute force attacks try, for example, to find out a password testing one by one all possible combinations. In this case, what they try is to saturate the algorithms so that they end up showing these videos generated by AI, and they are achieving it. Some already call Instagram Ya Tiktok “Villagers of AI” for the enormous amount of these contents, and that have made the conventional contents generated by human users have lost great relevance to the algorithm. Reality has changed. For many these networks they serve not only to entertain themselves, but to be aware of the present. Videos often try to profile reality, but that reality has now been disrupted and those Instagram or Tiktok accounts barely show anything that is real. Some videos are deep -to -detecting unappokes, and as we verify in the past, the paradoxical is that sometimes we are not even able to detect what is real and what is not. AI seeks virality and ends up finding it. The creators in social networks seek to get their videos viral, and for this they dedicate huge resources and time. In spite of this, success is not assured, but spammers that make video content generated with AI do not need to think so much: they can generate thousands of videos with very little effort, flood social networks and wait for some of those contents to be successful. The lottery of the virality is not so much if you have a lot of tickets. The influencers who are earning money with the landfills of AI. As usual in this type of phenomena, influencers have appeared with new formulas to get rich quickly and with hardly any effort. One of them, a 17 -year -old named Daniel Bittonpresumes having already won two million dollars and has a clear message. “While others invest 5 or 6 hours making a perfect video, we can generate 8 or 10 shorts in less than 30 minutes.” As? Using AI tools. The “Hot Dog” method. One of Bitton’s friends is a known spammer of Tiktok called Musa Mustafa. His method to go viral is that of the “sad hot dog”: “When you are hungry at two in the morning, even a sad hot dog knows better than any Michelin restaurant meal. Tiktok works in a similar way. Your audience does not expect (you don’t even want) perfectly polished videos.” Mustafa wonders, not without some reason, “when it was the last time you saw a viral video of Tiktok and thought: ‘Uauh, the degree of color in this video is incredible.” Or what is the same: the amount wins by a win to quality. But platforms embrace these contents. In The Guardian They already warned us Recently: social networks and networks are not stopping this type of spam, but are benefiting from it, they accept it and are even promoting it. In fact they offer tools to facilitate the generation of content through AI, which means that rather than trying to solve the problem, they are aggravating it. An example: Facebook. Meta’s firm recently launched a tool for advertisers called Advantage+. With it it is possible to create with different versions of an advertisement to try them all with the method of A/b test and then select the one that works best. For advertisers (and for the finish line, of course), all this is fantastic, because they can get more effective ads with much less investment of time and money. Are there limits? There will undoubtedly users who They reject This type of content: precisely networks such as Bluesky either Mastodon They move away from the algorithm and are more similar to how they were Twitter or Facebook years ago. But it seems clear that a vast majority of them have no problem with these contents generated by AI, which in fact have an example of success in that porn generated by the impossible combinations –A fish generated by the kissing to a woman generated by AI, an orco generated by AI marrying a girlfriend also generated by AI – they are also becoming viral. More wood for dead Internet theory. It has been talking about how the growing presence of bots on the Internet It will end that the human presence in these contents will be marginal. What we already saw with texts or images generated by the flooding Internet now we are seeing it with videos of the flooding social networks or with Virtual avatars generated by AI. The AI ​​landfill extends, and the worst thing is that not even users – which we contribute to making these contents viral – or the companies – which as we said not only do not stop them, but also promote them – seem to have a greater problem with this situation. Image | Kenneth Schipper In Xataka | Meta follows the steps of X: we not only work writing for her, now we will also work moderating her

Siri is not the only broken toy in the world voice attendees. Their rivals still do

Apple is still choking artificial intelligence implementation. The company confirmed at the end of the week that Siri’s advanced functions would take “More than expected” In arriving, without giving a specific date but advancing that until 2026 we will not have news. The company is late, but it is not the only one in trouble with its intelligent assistant. The great alternative to Siri is Gemini, a solution that most Android manufacturers are beginning to implement in collaboration with Google and that follows very, very green. Don’t wait for the new Siri soon. One of Apple Intelligence’s reasons was The new Siri. Native integration with chatgpt, Natural language understandinganalysis of the content of our phone to meet in detail … recently we could Test Apple Intelligence beta And the conclusion was clear: everything was half building or, directly, it wasn’t. Weeks later, Apple confirmed that Siri’s smartest version “will take longer than expected.” His artificial intelligence is still in beta and the arrival of all the news from this spring was expected. It won’t be so. Apple decided not to get into the AI ​​car when its main rivals were at a point of relative maturity, and These delays They have taken her to the current situation. His rival rubs his hands. Meanwhile, the answer on Android is being clear. This operating system is owned by Google, and Google has Gemini as vitamin assistant with artificial intelligence. Thus, most phones (Oppo, Samsung, Xiaomi, etc.) that are sold in Europe, arrive from Gemini. This is the agent that replaces the classic Google (OK, Google) assistant that we have been using on our phones for so many years, with the main difference of being a Google response to tools such as Chatgpt. Not everything that shines. Gemini has improved, and much, Since we tried it in February 2024. Gemini Live now It is completely freehas no problem to execute simple actions (alarms, searches, etc.), but it is still very far from being a natural assistant. One of its main problems is precisely that the distinction between Gemini and Gemini Live dilutes the use we want to give as an assistant. If, for example, I ask Gemini what I can do today, he will give me an especially extensive answer. If I want to stop talking (in addition, Gemini’s tone is quite robotic and unnatural) I cannot do it comfortably, since the only way that allows interruptions is that of Gemini Live. In other words, in an independent app (such as Gemini or Chatgpt) this distinction between conversational modes makes sense. In a fast and native assistant, everything should be available in the most accessible way. And no, if you tell Gemini if ​​you can speak using Gemini Live, do not activate this mode, start talking without stopping what this way is. Gemini also does not have access to native applications (it only works by extensions and, today, there are very few. It is not even able to make adjustments as simple as lowering/uploading the brightness of the phone, and the same happens with the volume. Much less can change basic system adjustments if we ask. There are no more rivals in sight (still). The only Android manufacturer who bet on a conversational assistant was Samsung with Bixby. This assistant is still alive in One UI 7, but it is so secondary that Samsung herself preinstall Gemini on her phones and its extensions are key to the operation of Galaxy AI. In China, the great manufacturers are beginning to integrate Depseek as the native but, for the moment, there is no advanced voice or native integration. Honor wants to change everything With its AI agent, one capable of performing all kinds of requests, including the most important, those of native adjustments. Image | Apple In Xataka | The new Siri forgets the devices where it is more important: the Homepod and Apple Watch

Honda and Nissan have broken negotiations for their merger. Now another buyer appears on the horizon: the iPhone manufacturer

Both companies believe that the most appropriate is to cease negotiations With these words, Honda and Nissan have confirmed that they have not reached an agreement and that, therefore, they put an end to their negotiations to add forces. What in March 2024 was exposed as a collaboration agreementat the end of the year was taking fusion form. Until, finally, there were clear that Honda would buy an important part of Nissan. Although there has been talk of Japanese government pressures to force the merger between both companies and try to get Nissan out of a financial hole that points to 9,000 layoffsthe truth is that Honda does not seem completely willing to merge from equal to equal. In recent days, the clearest option seemed to buy Honda of the totality or an important part of Nissan for turn it into a kind of subsidiarysomething that has ended up breaking negotiations. Nissan is now in a complicated situation but has preferred to maintain some independence in its future development. At the moment, it has to face the thousands of dismissals mentioned above but that will be nothing more than the confirmation that the company will fulfill its reduction in production by 20%. They are demanding but mandatory measures now that the profits of profits for the fiscal year that ends soon in Japan 70% have been adjusted compared to the original forecasts. At the moment, companies have announced that they are still open to collaborations for the development of potential future products although there is nothing written about this. Both companies face a future challenge with the electric car. Beyond Japan, the United States aims to be its strongest market but Nissan has fallen hard in the countrywhile putting Great efforts to jump into the electric car in the medium term. In Europe, where the road to the electric car has been paving from the political spheres, Nor has he received the expected support. To all of the above you have to add a context that has further complicated things. In Europe the idea begins to slide They will delay pressure measures to manufacturers to jump into the electric car. In the United States, Donald Trump is determined to end the promotion of this technology that Joe Biden had promoted with large tax incentives. Steel and aluminum tariffs They can be the icing to make the product more expensive and hinder its economic viability. In all this jaleo, a new player appears on the horizon. Foxconn and the car, the eternal desired Since the economic difficulties that Nissan is going through, Foxconn has been seen, he would see that he would be interested in buying an important part of the company and starting to manufacture its vehicles. The Taiwanese company is known for the production of iPhone But he has long since assured that his experience producing all kinds of technological devices may be sufficient to produce your own vehicles. Intentions are clear for years: produce platforms with all the integrated hardware necessary to make each manufacturer contributing its distinctive point with the software. To assert its position, Foxconn has been insisting that this way of working is perfect for launching electric cars at a low price. In December 2022Liu Young-Way, his CEO, said that the company’s strategy went to reach between 40 and 50% of world car production. The first milestone was marked by 2025 when they aspired to produce 5% world vehicles. Obviously, this will not happen but aware of the difficulties Nissan has, Foxconn has been interested in at least, with the shareholding that Renault keeps in the Japanese company as a consequence of the alliance, Woven under the mandate of Carlos Ghosnand its subsequent agreements that have been diluting participation of the French. With the negotiations between Honda and Nissan, foxconn again gained strength after Nissan will confirm last week which was open to new collaborations, including that of the Taiwanese company. Since then, the Rumors They have been taking strength although their managers have been elusive. In his last statements, Foxconn has made it clear that his true intention with Nissan would be framed within a collaboration and not of the purchase from your shareholders. These statements, of course, came before the publication of the cessation of negotiations between Honda and Nissan. Photo | Sling In Xataka | Nissan pointed to the electric car as a future plan. It will fire 9,000 employees and prove Toyota

Without aid, Spain disconnects from the electric car. 2024 promises have been broken and the roadmap is uncertain

The electric car in Spain was not doing as well as expected. In 2024, the sale of this type of car will barely grew by 4.21% to reach 65,478 electric cars. But, despite this increase, the share of electric cars has fallen slightly to 5.36%, below the 5.56% in 2023. If we take a look at the ACEA datathe figure is in the lower part of the European market. It is comparable to Italy, where the electric car has not taken off either and remained at 4.2%. But it is very far from France, which is close to 17%, from Portugal, which is also close to 20% or from the Nordic countries, where Sweden is at 35%, Denmark at 51.5% and Norway has already almost reached the threshold. all cars sold in 2024. To understand the idiosyncrasies of each country, we must take into account the characteristics that revolve around the electric car. However, there is something that does not fail: where aid has been simple and stable over time, the electric car has finally taken off. Where they have retreated, the electric car has retreated. What is the plan for Spain? Aid for electric cars in Spain seems to be an eternal problem to be solved. The last stone in the road has arrived with the last extension of the MOVES III Plan. To understand what happened you have to look back. In the last days of 2024, the Government approves a new extension of the MOVES III Plan. For the next 20 days, the project works without surprises but a vote of one omnibus decree that contemplates these aids (and others of great significance such as the revaluation of pensions or transport aid) does not move forward. Without the approval of the Congress of Deputies, everything falls and, with it, the aid from the MOVES III Plan. Since then, the political climate seems to have forgotten about aid for car purchases. There is talk of presenting, again, the same omnibus decree without changes or of vote separately some issues but little or nothing has been said about whether renewing the MOVES III Plan is one of the priorities. It is the finishing touch to an aid project that It has been in the eye of the hurricane for a long time because it is considered cumbersome, not very agile and, above all, ineffective. The theory is good (help from up to 7,000 euros in the purchase of an electric car and a mandatory discount from the dealer of at least another 1,000 euros) but its application discourages future buyers. Each extension of the MOVES III Plan in recent years has come marked by enormous uncertainty. At the end of last December, the Government had not approved a renewal which, ultimately, has been ineffective. But the way of acting was repeated in previous extensions. However, the real problem is how aid is managed. The State has funds that are delivered to the autonomous communities. Regional organizations apply, how each one decidesthe procedure for submitting applications and delivering aid. In some cases, for example, the procedure can be carried out through the dealer and in others only the future buyer can do it. This led to a disagreement between administrations that left undelivered aid for three years and 250 million euros approved to buyers for whom there were no funds. It was July 2024. Months before, The Government had already committed to changing the MOVES III Plan and proposed aid that would be discounted at the time of purchase. The solution that the manufacturers have found is to advance the MOVES III Plan with an interest-free credit for the value of the aid that will be received and that must be returned in a marked period that usually goes up to 18 months. At that time, the buyer should have received the money and would return the credit to the manufacturer. However, a year after those promises, purchase aid had not been changed in Spain. And, what is worse, this aid has fallen and there is no plan on the table to approve it with a closed calendar. Without aid, there is no electric car The worst thing for Spain is that the data tells us that, without aid, there is no electric car. Even the countries where the most electric cars are purchased (percentage or volume) such as Norway and China have built strong sales of this type of technology with multiple and constant purchasing aids. They are not the only ones. How ACEA collectsPortugal does not apply taxes to the purchase of electric cars and reduces them by 75% if they are plug-in hybrids. It also does not apply taxes to vehicle ownership (such as the Spanish road tax) and has tax reductions for companies. In addition, it provides 3,000 euros of aid for the purchase of electric vehicles for cars up to 62,500 euros. In Sweden and Denmark there is no direct purchase aid with discounts but the acquisition of electric cars or their maintenance are kept tax-free (or with significant discounts). France, where electric cars have fallen slightly but nearly two out of every 10 vehicles sold are electric, also provides purchase aid similar to that in Spain. Spain has grown in electric cars sold in 2024 but its market share has decreased slightly Italy, with worse sales figures than Spain, provides aid for larger purchases but for cars priced below 35,000 euros (10,000 euros less than in Spain) so the eligible cars are smaller in number and attractiveness. In addition, it has greater discounts but the car cannot exceed 30,000 euros, which greatly limits the application of this aid. But where it has become clear that the car needs help is in Germany. There we have lived the first year without subsidies for electric cars. The reason, as in Spain, was not a consequence of turning one’s back on technology. It was based on a mere bureaucratic and formal issue, overturning aid to justice. … Read more

Google finally fixes the navigation gesture that was broken on older Pixels when updating them to Android 15

Google is already working in the next Pixel 10 and Pixel 11 as was learned yesterday from an internal source. Now one of the bugs that were generated has been marked as corrected when updating old Pixels to the latest version of Android, precisely 15. This version was deployed to the new Pixel 9 like the rest of the old Pixels such as the Pixel 8 series in the middle of October. These types of updates make you enjoy the news and those new experiences who spend their daily lives better with a smartphone, a tablet or a smart watch. But not everything always goes well and with this deployment, users of the old Pixels found themselves with a very strange bug: Swiping in from the right side of the phone did not activate the back gesture, so the interaction experience failed severely with that update to Android 15. Now the issue has been marked as corrected in Issue Trackerthe web space that Google uses to record all bugs or errors on its mobile devices and where you can review the correction of errors. Pixel 7 Pro Alvarez del Vayo The Free Android In fact, a Google employee has stated that the solution will be deployed in a new imminent update of Pixel phones so that normal use of the phone can be resumed. First reported on a Pixel 8 Pro so that it would soon be confirmed in other models by more users. The error affected the gestures that are applied from both sides, not only the right one as has now been confirmed as solved since Issue Tracker. And it is a quite serious problem for the mobile gesture experience, since it has prevented the ability to navigate backwards. The only solution that had been given until now was use the navigation bar with its three buttons, but you can almost say that it is an almost retro experience so that moving with gestures is tremendously simple. The update with the back gesture fix will be deployed in the month of Februaryright in the first weeks, so any of the old Pixels can be used again as it has always been done with an error that can generate a lot of frustration according to what it maintains GSMArena.

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