5G is safe says the FCC

first_img Tags Share your voice Post a comment US regulators say there’s no evidence that cellphones harm health and they’re not changing current safety limits.  Pau Barrena / AFP/Getty Images Cellphones — old and new — are safe, including those that’ll use new 5G technology. That’s according to a new proposal that Federal Communications Commission Chairman Ajit Pai circulated Thursday. It would keep the agency’s current safety limits for radio frequency exposure the same as they’ve been for 23 years.  Following more than six years of public input and review, the agency said the current exposure levels for cellphones, wireless towers, Wi-Fi routers and all other devices emitting RF signals are safe. Agency officials added that they don’t have any concern for new gear using 5G technology, including gear that uses millimeter wavelength frequencies.The FCC, which sets radio frequency limits in close consultation with the Food and Drug Administration and other health agencies, said that the other agencies were also in agreement on keeping the current limits in place.  “The available scientific evidence to date does not support adverse health effects in humans due to exposures at or under the current limits,” Jeffrey Shuren, director of the FDA’s Center for Devices and Radiological Health, wrote to the FCC. “No changes to the current standards are warranted at this time.”Rally Against 5G Networks In PolandThe FCC says that current RF safety levels are sufficient. And that 5G poses no risk to health.  NurPhoto There have been concerns and questions about the safety of mobile devices for years. In 2011, the World Health Organization said cellphones might cause some brain cancers, leaving open the possibility that a link exists between cancer and cellphone radiation.But most studies haven’t found a link between radio frequency signals from cellphones or cell towers and disease. Concerns have grown recently as mobile carriers throughout the world race to deploy this fifth generation of cellular technology, or 5G. Specifically, there have been concerns that the high-frequency spectrum known as millimeter wavelengths, or mmWave, used in early deployments to make 5G a reality could pose adverse health effects for the public. Adding to the concern is the fact that 5G deployments require many more small cell towers to be deployed much closer to where people live, work and go to school. The growing fear about the health effects has caused lawmakers and policy makers throughout the world to start putting on the brakes. But FCC officials on Thursday reiterated there’s no reason for concern. An FCC official told reporters during a press briefing that there’s “nothing special about 5G.” They added that the scientific evidence to date indicates that 5G is no different from any other cellular technology, including 4G or 3G in terms of causing health effects. They also added that the higher-frequency signals used to deliver 5G also pose no health risk, and that the existing RF exposure guidelines are still applicable to 5G, regardless of the spectrum band used to deliver the service. The officials also emphasized that current RF exposure limits apply to any device emitting a radio frequency signal and are not limited to phones. Also, as part of the proposal, Pai recommends the agency establish a uniform set of guidelines to ensure companies making devices comply with the limits regardless of the technology that’s being used.  The FCC has for years been criticized for not updating its cellphone safety standards since 1996. Critics have argued that the levels should be reviewed based on the latest wireless technology. The agency uses a value known as a SAR, or specific absorption rate, to determine if devices can be safely sold in the US. The SAR measures the amount of power that’s absorbed in the body per given mass. While the FCC hasn’t updated its SAR level recommendations since the 1990s, others have reviewed the limits. In March of this year, the engineering group IEEE recommended the safety levels remain about the same as they have been since 1996.The FCC opened a proceeding in 2013 to look into the RF levels. And the order circulated Thursday by Pai is the result of that review.  Mobile 0 FCClast_img read more

Scientists identify oldest wood specimens

first_img(PhysOrg.com) — Researchers studying two fossilized plants, one from New Brunswick, Canada, the other from France have been identified as being 397 and 407 million years old respectively. Both are believed to be the oldest known examples of wood, predating previously found specimens by ten million years. Lead researcher Philippe Gerrienne, of Belgium, and his team have published the results of their research in Science. © 2011 PhysOrg.com The New Brunswick sample was found by co-author Patricia Gensel, who brought it back to the University of North Carolina where she is a professor of paleobotany. The fossil remained on the shelf apparently for several years before it was included in a study being led by Gerrienne, (research associate and lecturer at the University of Liege) of the plant specimen found in France.The two specimens are believed to be not just the earliest examples of wood found, but actual samples of wood in its earliest form of existence. Both plants were very small, just 20 centimeters tall (with stems just 12 centimeters tall and 3 to 5 centimeters wide) and were a type of herb.After studying cross sections of the plants, the researchers have theorized that wood did not evolve as a means to allow plants to grow taller as has been widely assumed, but to allow for the more efficient transfer of water and nutrients from the soil to the rest of the plant. They say they believe this is so because of the way that cells are arranged in the cores of the stems, and even more so because of the existence of long thin cells that grow across several rings, extending like rays from the middle to outer edges of the stems; both are reminiscent of modern trees. The presence of thick walled cells adds to the evidence. Because these structures were in place in very small plants, it’s hard to argue that they evolved to allow for more height.The authors suggest that because these plants were living in a time (the early Devonian age – 407 to 397 million years ago) when the amount of carbon dioxide in the air was decreasing (which reduced water-use efficiency) they were forced into coming up with something quick to survive; hence, the development of wood.The plants discovered are believed to be the ancestors of modern trees, the wood that evolved to help in nourishment wound up having the side benefit of allowing the trees to grow into the comparatively mammoth specimens found around the planet today. Citation: Scientists identify oldest wood specimens (2011, August 12) retrieved 18 August 2019 from https://phys.org/news/2011-08-scientists-oldest-wood-specimens.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Gene discovery to increase biomass needed for green fuel Explore further Image credit: University of Liege More information: A Simple Type of Wood in Two Early Devonian Plants, Science 12 August 2011: Vol. 333 no. 6044 p. 837. DOI:10.1126/science.1208882ABSTRACTThe advent of wood (secondary xylem) is a major event of the Paleozoic Era, facilitating the evolution of large perennial plants. The first steps of wood evolution are unknown. We describe two small Early Devonian (407 to 397 million years ago) plants with secondary xylem including simple rays. Their wood currently represents the earliest evidence of secondary growth in plants. The small size of the plants and the presence of thick-walled cortical cells confirm that wood early evolution was driven by hydraulic constraints rather than by the necessity of mechanical support for increasing height. The plants described here are most probably precursors of lignophytes.last_img read more

Learn how to jig for wedding gig

first_imgThe traditional dhol, wedding songs and impromptu dances at home once defined the typical sangeet, a key function in most big fat Indian weddings. Not any more. The celebrations have just gotten bigger and bolder with brides and grooms signing up for classes to train for a joint performance designed to dazzle.Be it Bollywood masala or western salsa, young couples are going out of their way to put on their dancing shoes to add that special edge to the revelry. Also Read – ‘Playing Jojo was emotionally exhausting’Sometimes the bride can’t dance, or the groom has two left feet; and then there are those families who are conservative and not in favour of their ‘to-be bahus’ shaking a leg on stage. But that’s changing. And that’s where dance instructors step in.‘Couples have preferences in terms of specific songs and often they want to depict their personal story through a dance performance,’ Atul Jindal, director, Big Dance Centre, told.‘Props and audio visuals are included in sangeet performances to give a spectacular look. Couples usually come to learn dance forms like salsa, freestyle and Bollywood that involve fun and partner work. In these dance forms, couples enjoy dancing with each other,’ he added. Also Read – Leslie doing new comedy special with NetflixAce choreographer Shiamak Davar agreed there was an upswing in the number of people who come to his institute just to learn how to groove for their special day. And he is all for the trend.‘I have so many people who want to dance at their wedding and we encourage them to do so. They love our choreography and we encourage them. They get excited to learn anything new and interesting,’ Davar told.Wedding choreographer Rahul Verma, who runs dance institute Bollywood Nach here, specialises in arranging special acts and training couples for weddings. Couples prefer dancing together rather than giving solo performances. ‘Some time back, brides and grooms used to give solo performances, but now families have become quite broad-minded, frank, and couples prefer to present a joint act. To support the couples, dancers are also provided to work as fillers,’ Verma said.‘Sometimes we use fillers also. Dancers stand in the background with props and perform while the bride and groom dance in the centre,’ he added.It costs quite a packet – ranging from anything over Rs 2,500 an hour to even packages that go up to Rs 100,000 for choreographing a complete act for the family.‘When there are family and friends, we charge Rs.100,000 for 15 days because they are not professionals at dance and want to put up a perfect performance, and enjoy it as well. For couples alone, who want private classes, we charge Rs 5,000 per hour,’ said Jindal.People are more than willing to spend.Swati Chaudhary, an animation designer by profession, and Sanjeet Chahal, who works as a relationship manager with a bank, are tying the knot 7 December. They have signed up for one such class, and feel it will also help them come closer to each other.‘We are very excited about our special day. Since our marriage is arranged, it was very important for us to know each other better. And what better than learning dance together and spending some quality time with each other,’ Chahal said.For Swati, dancing with her fiance has also helped her overcome her fear of dancing.‘I always feared dancing, but the idea of spending time with him convinced me to join the dance classes. Now I am enjoying each day and, on the other hand, our bond has strengthened,’ she said.last_img read more

Actor lodges complaint for being tortured by husband

first_imgKolkata: An actor lodged a complaint with police alleging that she was being tortured by her husband.The actor lodged the complaint with Lake Town police station on Friday against “her husband and others”.A police officer said on conditions of anonymity that the woman told police about the level of torture that went on after the death of her brother-in-law in 2014, considering that she brought misfortune to her in-law’s family.According to a senior police officer of Bidhannagar police Commissionerate, the complainant got married to a doctor, who practices at a well known private hospital in the city, four years ago and thereafter started staying at Bangur Avenue. Also Read – Rain batters Kolkata, cripples normal lifeShe lodged the complaint alleging that she had been “subjected to both physical and mental torture at the bangur Avenue residence” and was “tortured’ by her husband.She further told police that they bought a flat recently. On Wednesday, she went to the flat where she was allegedly tortured by her husband and received injuries in the course of action. The woman on Thursday went to Lake Town police station and lodged a complaint in this connection. The police initiated a case under section 498A (husband or relative of husband of a woman subjecting her to cruelty) of Indian Penal Code (IPC) and 324 IPC (voluntarily causing hurt by dangerous weapons or means). Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedIt is learnt that the complainant had earlier acted in some Tamil films. But she discontinued the same after her marriage. She told police that recently she once again has expressed her wish to continue her work in TV serials.The police initiated a probe in this connection and would speak to the victim’s husband in this connection. A senior police officer said a notice will be served summoning the doctor and we are hopeful that he would co-operate in the investigation or else necessary legal steps would be taken up.last_img read more

Blending New and Old Microsoft Unveils Windows 10

first_img Today Microsoft unveiled what it says will be a unifying platform across more devices than ever before: Windows 10.The new operating system, which won’t be available until next year, is designed for desktop and mobile devices that use either a keyboard and mouse or a touch interface. Terry Myerson, head of the company’s operating systems group, said it will be a “one application platform” with a single store and “one way for applications to be discovered, purchased and updated across all of these devices.”With Windows 10, Microsoft is trying to merge the best part of its touch-focused Windows 8, which alienated some traditional Windows users, with an experience similar to its well-received Windows 7. “Windows 10 will deliver the right experience… at the right time,” he said. The new operating system will have a universal search feature and a revamped Start menu.Related: Microsoft Accidentally Teases Windows 9, Quickly Deletes PostFor enterprise customers, Myerson said the new operating system would include all of the tools they’ve come to expect and be compatible with management systems already in place. He also said Windows 10 offered a “novel approach of separating corporate and personal data” across devices — a pitch aimed at companies worried about the messy entanglement of business and personal information stored on many employees’ computers and smartphones.In a live demonstration today in San Francisco, the company showed off the new Start Menu with customizable tiles and a universal search feature that also pulls in web results, similar to Spotlight on OS X.”We’re looking to find the balance, so that all the Windows 7 users get a familiar experience on the devices they already have,” said Joe Belifore, corporate vice president of operating systems. “It gives the familiarity of Windows 7 with some of the elements of Windows 8.”Some of the other features Belifore showed off have an emphasis on productivity, including a new “task view” button that shows all apps currently open and gives users options to use multiple desktops, similar to Expose in OS X.Related: In Risky Move, Microsoft to Open NYC Flagship Right Near Apple’sOther new productivity features let users run different apps in different desktops to keep things organized and the “Snap Assistant” lets users rearrange apps from multiple desktops and snap them into place, just like in Windows 7.Belifore demonstrated another feature called “Continuum” designed to make the integration of touch and traditional keyboard and mouse interfacing more seamless in two-in-one devices.Windows 10 will be released sometime in 2015 after Microsoft’s Build Conference in April, but the company is asking for customer feedback through its Windows Insider Program.Related: Using Wearable Devices to Help Promote Employee Wellness  Listen Now 3 min read Opinions expressed by Entrepreneur contributors are their own. Hear from Polar Explorers, ultra marathoners, authors, artists and a range of other unique personalities to better understand the traits that make excellence possible. How Success Happens September 30, 2014last_img read more