Ofcom plans to press ahead with the auction of spectrum in the 600MHz band following digital switchover.In its draft work plan the regulator said it would hold the 600MHz auction in 2012-13. It said that one potential use would be to provide new TV services on digital-terrestrial TV. This might include new standard definition and HD channels on Freeview, or a completely new TV service. Another potential use of this spectrum would be the provision of enhanced wireless data services.Ofcom will prioritise the planned 800MHz and 2.6GHz auction over the 600MHz auction, to avoid running the two auctions at the same time. However, in the event that there is a delay to the 800MHz and 2.6GHz auction, it may progress the 600MHz auction in the meantime.Other TV-related plans include pressing ahead on work to implement a geolocation-based approach to enable white space access on a licence-exempt basis in the UHF TV band.Ofcom will also begin the process of working on the renewal of public broadcaster Channel 4’s licence, set to expire at the end of 2014. Channel 4 has been given a substantially increased public service remit as a result of last year’s Digital Economy Act.If the plan is approved by Parliament, Ofcom will also move forward with plans to license local TV services in the first half of the 2012-13 period. It envisages licensing a single multiplex operator which will deliver local television using geographically interleaved spectrum in a number of different locations, and subsequently moving forwards with licensing of individual services.Other work for the 2012-13 period includes a review of the work of ATVOD, the regulatory watchdog set up to monitor video-on-demand services in the UK.
Matthias KurthEurope needs a “rational” net neutrality regime and a US-type promotion of very strict rules would not benefit consumers, according to cable industry body Cable Europe.Opening the Cable Congress in Brussels this morning, Cable Europe president Manuel Konstamm called for a “market-led solution” to net neutrality.Executive chairman Matthias Kurth told attendees that he hoped “Europe would have a more rational approach” than the US, although the European parliament is divided on the issue. He said European operators hoped to avoid anything similar to the Title II regulations imposed on US operators by the FCC.Speaking at the Cable Congress press conference earlier, Kurth said that “no-one in our industry is against the open internet” but that “we also want the issue to be seen in a way that still makes innovation possible”. He said that the introduction of new services would require “some special treatment”.Kurth said that he hoped Commissioner Gunther Oettinger and other policy makers would take a “rational” view and described the introduction of strick net neutrality rules in the US as not helpful.Kurth said that Cable Europe is working to ensure its input into changes that will be introduced by the new Commission.Kurth said he hoped there would be “fair competition” with OTT players with a level playing field. “Everyone uses WhatsApp but we still go on regulating SMS prices, which doesn’t make sense,” he said. “I think the Commission is looking in this direction.”Kurth said that cable had invested significantly in broadband infrastructure. There is a great supply of liquidity for broadband investment, he said. “We don’t need subsidies, but if there is a discussion on this, it should clearly be limited to areas where there is no feasible economically viable business case [for commercial investment],” he said. “It also has to be [for] a mix of technologies.Fibre is not the solution everywhere. We have seen that cable has a lot of potential, especially when coax is used for the last metres to the home in a hybrid connection.” He said this type of hybrid connection using existing coax is much more economic than bringing fibre to every home.Addressing Congress attendees after the press conference, Kurth reiterated that public money should be “limited to rural areas” and should be “technology-neutral”.The ability to port content rights across borders is clearly something European consumers want, said Kurth. He said he hoped rights societies would take a helpful view.“Accessing content across countries on different devices is something where you can show there is actually a single market,” he said. Kurth said one issue was there are so many organisations handling rights that distributors have to deal with that it complicates investment plans.Kohnstamm said that European consumers are not happy about geo-blocking of VoD services between countries and a growing number of providers were providing pan-European services.
Explore further As concerns about privacy increase for people using mobile apps, users’ trust and engagement may hinge on perceptions about how the app uses their data and whether it seeks user input before delivering personalized services, according to researchers. However, their reactions may also depend on how familiar a user is with technology, they added. In a study of a prototype app for recommending eco-friendly stores, users considered an app more trustworthy and easier to use if they felt they were consulted about the distance and nature of the stores they prefer, a process called overt personalization. Usability of the app was dampened when the personalization was covert, when it recommended stores without first asking their preferences.But, it is not always feasible to consult app users because it would interrupt them and require them to make too many choices, said the researchers. One solution is to make sure that users have a clear understanding of how the app is using their data.According to the researchers, higher perceived transparency—whether users recognize that the app is clearly conveying how and why it is collecting the data—is associated with better product involvement and user engagement. Transparency can also mean lower privacy concerns.”Providing details about how the app is going to do things, such as how it will use your information, how it will store the data and how it’s going to delete that information, may reduce some of the privacy concerns and the feeling of being creeped out by personalized offerings,” said S. Shyam Sundar, distinguished professor of communications and co-director of the Media Effects Research Laboratory.Tsai-Wei Chen, a user experience designer at Optum, who worked with Sundar, said that the perception of control can lead to a series of positive user reactions.”If you give people a perception of control, they trust the app more, and, the more they trust it, the greater their involvement in the app and the more positive attitudes,” said Chen. “Their privacy concerns also went down and they had greater engagement with the app.”The researchers, who presented their findings at the CHI Conference in Montreal, found a connection between a user’s technological savvy and his or her ability to perceive overt personalization and information transparency.”People who were more familiar with using technology—power users—could tell the difference between overt and covert personalization,” said Sundar. “They better recognized the value of information transparency and felt that it made up for perceived lack of overtness in personalization.”The researchers suggest that because users’ familiarity with technology may influence how they experience features, such as privacy controls, developers should have a clear understanding of their customers’ expertise and limitations when designing an app.Developers should also make cues about information usage more obvious for casual tech users, they added.”For users who have some tech expertise, it’s easier to incorporate covert personalization, but make sure the transparency cues are apparent and easy to understand,” said Chen. “For users with lower tech expertise, you need to work hard to convey overt personalization and information transparency, or find other features to increase their trust.”For the study, the researchers recruited 302 participants to use five different versions of an app prototype, called GreenByMe, that recommended local eco-friendly stores. The five versions covered the different conditions of the experiment, including covert personalization, overt personalization, high transparency, low transparency, and a control condition.In the overt condition, the app displayed selection menus. To test transparency, in the high transparency condition, a screen contained an explanation on how the information would be used. Credit: CC0 Public Domain Provided by Pennsylvania State University Privacy top concern as users customize, personalize online experiences Citation: User control and transparency are key to trusting personalized mobile apps (2018, April 24) retrieved 18 July 2019 from https://phys.org/news/2018-04-user-transparency-key-personalized-mobile.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.
Ethnicity: White and Asian women have the highest risk of osteoporosis, while African American and Hispanic women have a lower risk. Weight-bearing exercise can help keep bones strong and prevent or slow osteoporosis progression. Credit: Shutterstock Nutrition: Eating a diet that’s low in calcium and vitamin D increases osteoporosis risk. This article is for informational purposes only and is not meant to offer medical advice. Being a couch potato: Not getting enough physical activity or too much bed rest following an injury, illness or surgery weakens bones over time. Osteoporosis risk factors The following factors can increase a person’s risk of developing osteoporosis, according to the Cleveland Clinic. Age: Bones typically become thinner and weaker with age. Osteoporosis treatment and medications People with advanced osteopenia as well as those with osteoporosis need medication to reduce their risk of fractures. Bisphosphonates are usually the first drugs used to treat osteoporosis, but while they help slow bone loss, they don’t help build new bone. These drugs include alendronate (Fosamax), risedronate (Actonel) and ibandronate (Boniva). Studies have shown that alendronate can reduce the risk of spine and hip fractures by up to 50%, Rosen said. Once a person has started treatment for osteoporosis, bone-density testing should be repeated every two to three years to monitor how the density is changing and whether treatment is working, Rosen said. For severe osteoporosis, patients may need one of three medications given by injection that actually build new bone, Rosen said. These include teriparatide (Forteo), abaloparatide (Tymlos) and romosozumab (Evenity). But after a year on these bone-building drugs, a patient needs to take bisphosphonates; otherwise, all the bone-density gains will be lost, Rosen said. In addition to medication, people with osteoporosis should aim to include 1,200 milligrams of calcium a day in their diet, from food or supplements (preferably calcium citrate), Rosen said. He also recommends taking 1,500 to 2,000 International Units (IU) of supplemental vitamin D each day. Being physically active is also beneficial for people with osteoporosis. Rosen recommends regular workouts that include weight-bearing aerobic activity, as well as strength training, balance and posture exercises. Additional resources: Consuming adequate amounts of foods rich in calcium and vitamin D throughout life. Osteoporosis is a common disease that makes bones weak, thin, brittle and more likely to break. The condition typically occurs in women after menopause and can increase the risk of fractures, especially in the hip, spine and wrist, according to the National Institutes of Health. The condition is often called a “silent disease” because bone loss can happen slowly and without any warning signs. People may not be aware they have osteoporosis until they break a bone, lose height or develop hunched posture. About 10 million Americans have osteoporosis, and another 44 million have low bone mass, or osteopenia, placing them at increased risk for osteoporosis, according to the National Osteoporosis Foundation. There are a number of factors that may lead to osteoporosis, said Dr. Harold Rosen, an endocrinologist and director of the Osteoporosis Prevention and Treatment Center at Beth Israel Deaconess Medical Center in Boston. One such factor is the accelerated bone loss that occurs after menopause, he said. Men also lose bone as they age, normally once they’re in their 60s and 70s, Rosen said. Some men think osteoporosis affects only women, but it strikes men too, he explained. Low calcium intake and low vitamin D levels in the body can also lead to bone loss, Rosen told Live Science. The body needs a good supply of calcium and other minerals to form bone, and vitamin D helps absorb calcium from food and incorporate the nutrient into bone. In addition, unhealthy habits, such as smoking and excessive drinking, can speed up bone loss, he said. Bone Density Decreases in SpaceBone loss is a serious issue that has plagued astronauts since the dawn of the Space age. In the microgravity environment bones are remodeled with a decrease in mineral density. Good nutrition, increased vitamin D intake and exercise are used to battle the issue aboard the ISS.Volume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9接下来播放Better Bug Sprays?01:33关闭选项Automated Captions – en-US facebook twitter 发邮件 reddit 链接https://www.livescience.com/65900-osteoporosis.html?jwsource=cl已复制直播00:0002:4102:41Your Recommended Playlist01:33Better Bug Sprays?01:08Why Do French Fries Taste So Bad When They’re Cold?04:24Sperm Whale Befriends Underwater Robot00:29Robot Jumps Like a Grasshopper, Rolls Like a Ball02:31Surgical Robotics00:29Video – Giggly Robot关闭 Family history: People whose parents had a hip fracture may be more likely to develop the disease. Osteoporosis symptoms and diagnosis Osteoporosis may cause no symptoms in its early stages, and as a result, the disease can go unnoticed for decades. Some visible signs of osteoporosis may be a loss of height and a curve in the upper back, which may cause stooped posture. A “dowager’s hump” may occur when several vertebrae collapse from osteoporotic fractures in the spine. Other symptoms may include back pain, from a fracture or a collapsed vertebra in the spine, or tooth loss, if osteoporosis has affected the jawbone. Hip fracture is another serious consequence of osteoporosis. About 20% of older adults who fracture a hip die within one year from complications of the broken bone or the surgery needed to repair it, according to the National Osteoporosis Foundation. Doctors may perform a bone mineral density (BMD) test to determine if a patient has osteoporosis, according to the Mayo Clinic. The test uses a special X-ray machine to measure the mineral content at three different bone sites, typically the hip, the spine and the top of the femur. The scan can reveal if a person has low bone mass at any of these three bone sites by comparing the patient’s bone density to the normal bone density in a healthy 30-year-old person of the same sex. BMD testing is recommended for women who are 65 or older and for women 50 to 64 who have certain risk factors for the disease. Men over the age of 70 or younger men with risk factors should also be screened for osteoporosis. Review this list of calcium-rich foods from the University of California, San Francisco Medical Center. Medical problems: Numerous health conditions and diseases can also increase a person’s risk for osteoporosis. Maintaining a healthy lifestyle, such as avoiding smoking and limiting alcohol consumption, reduces bone loss. Getting regular weight-bearing exercise. How bone changes over time The body is continually breaking down small areas of old bone tissue, a process called bone resorption, and replacing that old tissue with new bone tissue. During childhood and adolescence, new bone is deposited faster than old bone is removed. This makes bones larger, heavier and denser. Peak bone mass, or when bones reach their maximum density and strength, typically occurs around age 30 for both sexes. Around age 35, bone breakdown occurs faster than the replacement by new bone, causing a gradual loss of bone mass, according to the National Institute on Aging. Women undergo more-rapid bone loss in the first few years after menopause (around age 51) than in their 30s and 40s because the ovaries produce much less estrogen, a hormone that protects against bone loss, according to The American College of Obstetricians and Gynecologists. Men in their 50s and 60s also start to lose bone mass, but at a slower rate than women do. It’s not until ages 65 to 70 that men and women begin losing bone mass at about the same rate. For that reason, osteoporosis is more common in women. The condition affects about 25% of women and 5% of men ages 65 and over, according to the Centers for Disease Control and Prevention. Can osteoporosis be prevented? The more bone a person builds early in life, the better that individual can resist bone loss later on. Prevention should start when people are younger, during their peak bone-building years, with the following steps, according to the National Osteoporosis Foundation: Body size: Petite and thin people are at greater risk of this condition because they have less bone to lose than people with larger frames and more body weight. Download a helpful brochure from Osteoporosis Canada on managing osteoporosis through exercise. Sex: Women are more likely to develop osteoporosis than men, because women have less bone tissue and lose bone faster after menopause. Learn more about osteoporosis in men from the National Institutes of Health. Unhealthy habits: Smoking and consuming too much alcohol can both increase bone loss. Osteoporosis bones are porous and weak compared to healthy bones that are more dense. Credit: Shutterstock Medications: Using certain drugs on a long-term basis can lead to bone loss. These medicines include corticosteroids, such as prednisone; heparin, a blood thinner; selective serotonin reuptake inhibitors (SSRIs), a class of antidepressants; and aromatase inhibitors, used to treat breast cancer.
SHARE SHARE EMAIL national elections COMMENT Unaccounted cash, gold and other valuable items worth Rs 552.23 crore have been seized in Tamil Nadu since the Model Code of Conduct came into effect on March 10, the Election Commission said on Saturday. Chief Electoral Officer Satyabrata Sahoo said Rs 129.51 crore in cash has been recovered till Friday. Gold and silver ornaments, besides liquor, laptops and clothes worth Rs 422.72 crore were seized since the code of conduct came into effect, he told reporters here. On preparations for the April 18 Lok Sabha elections, he said 5,874 zonal teams have been formed to take up poll related work. He said 7,225 poll booths have been identified “vulnerable” in the State and steps are being taken to monitor them using surveillance cameras. Central armed forces and micro observers will also maintain vigil at these booths, he said. SHARE Tamil Nadu April 13, 2019 Flying squad seized Rs 32 lakh at Karnampattu highway near Katpadi. (file photo). – C. Venkatachalapath Election Commission of India COMMENTS Published on