QPR are hopeful Joey Barton and Nedum Onuoha will be fit to return to action against their former club Manchester City a week on Saturday.Jordon Mutch could also be available when the champions visit Loftus Road. All three players have been struggling with hamstring problems.Having initially been confident Onuoha would make a swift return, Rangers have admitted defeat in their battle to get him fit for this weekend’s west London derby at Chelsea.Onuoha was a popular figure at City.But he is expected to return to training early next week, while Barton also appears to be close to recovering.“The lads are still injured who were injured before. There’s no-one who is fit this week that wasn’t,” Rangers boss Harry Redknapp confirmed ahead of the visit to Stamford Bridge.“Next week they should be training with the group again, hopefully on Monday, and with a week’s training they should be fit for Man City.”Barton made 130 league appearances for City before joining Newcastle in 2007.Defender Onuoha, a lifelong City fan, came through the ranks at the club and joined QPR in January 2012.See also:The Redknapp recap: Harry on Taarabt, Wright-Phillips and moreRedknapp keen to cause City problemsZamora in line for Rangers recall Follow West London Sport on TwitterFind us on Facebook
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The human ear has an extraordinarily large sensitivity range of a trillion to one, allowing us to hear a rocket launch or the footfalls of a cat on a carpet. According to Werner Gitt, the ear is our highest-precision sense organ, capable of responding over twelve orders of magnitude without switching (The Wonder of Man, p.21). Some of this sensitivity is amplified by the eardrum and middle ear ossicles, but the paper reported above shows even more fine-tuning inside the cochlea. Gitt’s book is highly recommended for generating a profound feeling of awe over the design of our senses. Proverbs said, “The seeing eye, and the hearing ear, the Lord has made them both” (Prov. 20:12).(Visited 48 times, 1 visits today)FacebookTwitterPinterestSave分享0 The cochlea, that spiral-shaped structure in the inner ear, is filled with fluid. In this fluid, tiny hair cells called stereocilia are positioned in bundles along the length of the structure. These bundles sense vibrations transmitted into the fluid from the bony levers of the inner ear. The vibrations picked up by the hair cell bundles, each tuned to its own frequency, mechanically transduce the sound impulses by opening ion channels that set up electrical impulses in the auditory nerve, that travel to the brain. But motion in fluid creates friction known as viscous drag. How do the hair cell bundles overcome it? Scientists have figured out that the hair cells in the bundles are not only finely tuned to reduce viscous drag, but actually to employ it for even higher sensitivity to sound. Publishing in Nature,1 scientists from Howard Hughes Medical Institute, with help from European academies, explained the problem of viscous drag, and two ways the ear deals with it: The detection of sound begins when energy derived from an acoustic stimulus deflects the hair bundles on top of hair cells. As hair bundles move, the viscous friction between stereocilia and the surrounding liquid poses a fundamental physical challenge to the ear’s high sensitivity and sharp frequency selectivity. Part of the solution to this problem lies in the active process that uses energy for frequency-selective sound amplification. Here we demonstrate that a complementary part of the solution involves the fluid-structure interaction between the liquid within the hair bundle and the stereocilia. What they found is that the positioning of the individual stereocilia causes them to move in concert, so that viscous drag within the bundle is dramatically reduced: “We find that the close apposition of stereocilia effectively immobilizes the liquid between them, which reduces the drag and suppresses the relative squeezing but not the sliding mode of stereociliary motion.” They can thus slide as the bundle bends without stirring up the liquid. Further, “The obliquely oriented tip links couple the mechanotransduction channels to this least dissipative coherent mode, whereas the elastic horizontal top connectors that stabilize the structure further reduce the drag.” The relative motion is reduced to just a fraction of a billionth of a meter (nanometer). Their opening paragraph provides a picturesque view of the workings of this remarkable organ: A hair bundle is a microscopic array of quasi-rigid, cylindrical stereocilia separated by small gaps filled with viscous endolymph. Like an array of organ pipes, the stereocilia vary monotonically in length across the hair bundle…. The tip of each short stereocilium is attached to the side of the longest adjacent stereocilium by a tip link, the tension in which controls the opening and closing of transduction channels. Adjacent stereocilia are also interconnected along all three hexagonal axes by horizontal top connectors. At the tall edge of the bundle in many species stands a single kinocilium, the process to which mechanical stimuli are applied and that is ligated to the adjacent stereocilia by kinociliary links. Why are the stereocilia arranged in bundles? “The small difference between the drag coefficients for a single stereocilium and for an entire hair bundle reveals the striking advantage that grouping stereocilia in a tightly packed array offers to the auditory system.” Using models from a bullfrog inner ear magnified 12,000 times and various mathematical techniques, they were able to measure the viscous drag of the coherently-arranged stereocilia. Their conclusion explains how the findings contribute to understanding the remarkable sensitivity of the ear: In conclusion, because all stereocilia and the liquid between them move in unison over the whole auditory spectrum, with the relative motions apparent only on a sub-nanometre scale, most stereocilia inside the hair bundle are shielded from the external liquid and experience little viscous drag. Although viscous forces might be thought to impair sensitivity and frequency selectivity, the hair bundle’s structure actually minimizes energy dissipation, making it easier for the active process to keep the ear tuned. The tight clustering of stereocilia even transforms liquid viscosity into an asset by using it as a simple means of activating numerous mechanosensitive ion channels in concert. The authors made no attempt to explain how this arrangement might have evolved. 1. Koslov, Baumgart et al., “Forces between clustered stereocilia minimize friction in the ear on a subnanometre scale,” Nature 474 (16 June 2011), pp. 376–379, doi:10.1038/nature10073.
Related Posts It seems like every day lately, router manufacturers are coming up with some new buzzword or marketing term to sell you on why their networking appliance is better than the rest, without actually having the real performance to back it up. That’s why we’ve teamed up with Gadget Review to extensively test and review the best wireless routers on shelves today, in order to give you a detailed breakdown of everything you need to know about the best wireless routers of 2017.How we choose and why you should buysTo create this year’s roundup of the best routers on the market, we’ve run dozens of newer and some not-so-new models through the ringer to find the best of the best. Using a 1GB symmetrical fiber optic line, we pushed our top picks to the absolute limits of what routers could do, testing on a variety of devices including desktops, laptops, smartphones and tablets. See also: Are prices driving away smart home tech consumers?To make this list, the routers we tested needed to have a minimum wireless bandwidth rating of 1900AC, have at least four ethernet ports on the back, one USB port for media server options, and be able to transmit on both the 2.4GHz and 5GHz spectrum. All the routers here hit the spec of transmitting at 250Mbps or more on 5GHz, and were able to maintain a rate of 300Mbps over a hard-wired connection. Features like software and configuration options were also thoroughly tested, in order to find the best mix of performance, reliability, and price in the best wireless routers of 2017.Our best wireless routers for 2017, compared#1 Pick: Linksys WRT3200ACM Smart Wi-Fi Router – Editor’s Choice/Best Home RouterThe Linksys WRT3200ACM may look old-school on the outside, but it’s all future tech under the hoodPrice: $249.99The Linksys WRT3200ACM may look on the outside like it’s a blast from the past, but after running it through the ringer on everything from downloads to streaming, we can tell you this router might as well be straight out of five years from the future. The WRT3200ACM comes equipped with the latest in bleeding-edge features like MU-MIMO beamforming capabilities and the option to create a mesh network with Linksys’ USB dongle architecture. It also runs all of this on top of Linksys’ revolutionary Smart WiFi dashboard system, which makes it easier than ever to customize and control how your router handles traffic from family members or guests on the fly. If you’re looking for the total package when it comes to performance and power, the Linksys WRT3200ACM is undoubtedly the best wireless router for 2017. #2 Pick: TP-Link Archer C9 AC1900 Wireless AC Gigabit Router – Best Budget Wireless RouterTP-Link Archer C9 wireless router is budget speed at its bestPrice: $119.95As great as the Linksys WRT3200ACM is, though, not everyone out there has a spare $250 laying around to spend on a single router. Enter the TP-Link Archer C9, a smaller, unassuming router that still manages to pump out performance that’s on-par with routers two to three times the cost. In our testing on a fiber line, the Archer C9 was able to push nearly 300Mbps of download speed and almost half a gigabit of upload from 30ft away. If you live in a larger house you may notice a few issues with signal reliability over longer distances, but otherwise the TP-Link Archer C9 is the perfect pick for apartment dwellers or small homeowners who need serious performance on a budget.#3 Pick: Netgear Nighthawk X6 AC3200 Tri-Band WiFi Router – Best Wireless AC RouterNetgear Nighthawk X6 AC3200 Tri-Band WiFi Router does it all and then somePrice: $255Last up on this year’s list we have the Netgear Nighthawk X6, a powerful, imposing-looking router with a rich feature set for the ultra-geek in all of us. As far as customization and configuration goes the X6 is simply unmatched in its category, thanks to the help of Netgear’s newly refreshed online dashboard. Its six high-powered antennas ensure coverage throughout every corner of homes large and small, and although it has a bigger footprint than most, this is the kind of kit you buy if you want your house guests to know you take your home networking more seriously than most. And which wireless router of 2017 is right for you?So, which one is the best wireless router for 2017?They all are, or could be. The best part about routers is that in this category, there’s something that’s just right for everyone. If you want a router that’s got an extensive number of available features like parental controls and QoS management, the Linksys WRT3200ACM is the one for the job. If you don’t have a spare arm and a leg to spend on a router but still want speed, the TP-Link Archer C9 is the perfect budget pick, while beasts like the Netgear Nighthawk X6 are all about range, performance, and reliability in one complete (and very scary-looking) package.No matter what you’re looking for, there’s a best wireless router in 2017 for you! Follow the Puck Internet of Things Makes it Easier to Steal You… Why IoT Apps are Eating Device Interfaces Christen Costa Tags:#Internet of Things#IoT#linksys#netgear#TP-link#wireless routers Small Business Cybersecurity Threats and How to…
Following a day-long meeting of the Left Front in Kolkata on Friday, the Communist Party of India (Marxist) unilaterally declared names of two candidates for two north Bengal Lok Sabha seats. The candidates are Md. Salim for Raiganj in Uttar Dinajpur and Badaruddoza Khan for Murshidabad in Murshidabad district. While the Left Front had won both seats in 2014, the Bengal Congress unit is reluctant to give up these seats in favour of the CPI(M) as part of a proposed ‘no contest’ deal. The parties are still engaged in discussions.
TagsTransfersAbout the authorPaul VegasShare the loveHave your say Lyon ace Depay: The challenge Mourinho made me…by Paul Vegas10 months agoSend to a friendShare the loveOlympique Lyon ace Memphis Depay has revealed Manchester United boss Jose Mourinho offered the carrot of buying him back when he was sold two years ago.Depay failed to settle in at Manchester United during his two years at the Old Trafford club, but has his career back on track at OL.Talking to The Times, Depay said: “When I left, I said to Mourinho ‘you will see me at the top’. “He said ‘OK, I hope that and I hope we will buy you back one day.’ I never had a bad relationship with him.” On his relationship with Louis van Gaal, who brought him to Manchester United, the Dutchman said: “We didn’t fall out, it was just a miss-connection with each other.”As a team we didn’t play great football and some things I don’t understand – if you have talented young players, Anthony Martial, Luke Shaw and the others, they need freedom.”
erin andrews jimmy kimmelErin Andrews, who recently won her lawsuit in the much-publicized stalker trial, was awarded $55 million in damages from the Nashville Marriott, the Windsor Capital Group and Michael David Barrett. It didn’t take long for ABC late night talk show host Jimmy Kimmel to get to the point when Andrews came on as his guest Wednesday night.Kimmel, jokingly, asked Andrews for $1 million. Of course – as we’ve written – she doesn’t have any of that money yet, and she won’t get it all.In all seriousness, it’s great to see Andrews smiling and laughing after the trial. The pictures/video from the ordeal were pretty tough to see.
Purple Heart recipient Joey Jones – military Spokesperson for the Boot Campaign – recently talked about his involvement with Pushups For Charity, where he was joined by celebrities such as Lou Diamond Phillips, Tony Horton, Randy Couture and more.Joey Jones And Tony HortonTell us more about why you support The Boot Campaign?Boot Campaign doesn’t just raise money or tell heart wrenching stories. This organization does fun and exciting things to support our military and veterans and get all Americans involved. When celebrities don a pair of combats boots for a photoshoot or event they join a movement felt coast to coast.What is the most annoying thing about people that don’t help charities and why?I don’t know that this is annoying; the whole point of giving time or money is to buy into the idea. If there are people who don’t see this as a relevant thing to do, it truly is their loss, as we will keep reaching those that do participate!Joey Jones and Lou Diamond PhillipsAnd how important do you think it is for celebrities to get involved in charity?Through their talents, celebrities have a unique opportunity to reach their audience with a message. Many celebrities have fan bases which are incredibly unique; having those celebrities join our cause means we will reach Americans who have no other connection to our Heroes but will now consider them, and hopefully support them.What plans do you have to make an impact on society this year?Boot Campaign has a full calendar this year with events and campaigns designed to awaken the patriot in every American we reach. Our message is simple, “this country is uniquely free and full of opportunity and we appreciate the men and women who have fought to keep it that way.”Copyright ©2015Look to the Stars
APTN National News QUEBEC – The Quebec government says investigations into allegations of sexual assault by police officers against native women are nearly completed. Public Security Minister Lise Theriault said in the legislature today her office first heard about the allegations last May. Theriault says provincial police conducted the investigations even though the alleged brutality and sexual assault was perpetrated by members of the force in Val-d’Or, in northwestern Quebec. She contends the probes are independent because the investigators in question are not from the same area. The story broke ahead of tonight’s broadcast of “Enquete,” a Radio-Canada investigative program that has looked into the abuse allegations. – with files from The Canadian Press
In order to support the higher cost of rail over pipelines, the differentials need to be higher than US$15-$20 per barrel, Imperial says. On a conference call to discuss Suncor’s fourth-quarter results, Williams said the production cuts are also having a long-term negative affect on investor confidence in Canada.The criticism came as Suncor reported a $280-million net loss in the fourth quarter of 2018, in part due to the very price discounts the curtailments were designed to reduce.Calgary-based Suncor said its average realized price in Canadian dollars for raw bitumen in the quarter was just $7.96 per barrel, versus $42.80 in the fourth quarter of 2017. Its average realized price for upgraded synthetic crude was $46.07, compared with $70.55.“If you look at what’s happened, the differential corrected _ and over-corrected _ very quickly and the unintended consequence of that is … rail economics are severely damaged and a lot of the rail movements are stopping or have stopped,” said Williams.“That’s going to have the opposite impact to what the government wants.”The difference in price between Western Canadian Select bitumen-blend oil and New York benchmark West Texas Intermediate widened to as much as US$52 per barrel in October, but shrunk to single digits in December and January. CALGARY, A.B. – Suncor Energy Inc. is calling on the Alberta government to make an earlier-than-planned exit from the oil curtailment program it enacted on Jan. 1 because of its “unintended consequences.”CEO Steve Williams says the program designed to draw down crude storage and free up space on export pipelines has worked too well, reducing local price discounts to the point that shipping crude by rail into the United States is no longer financially sustainable.The same charge was levelled last week by Imperial Oil Ltd. CEO Rich Kruger, who said his firm would cut its crude-by-rail shipments to near zero this month, a major setback in oil movements as it had been responsible for about half of Canada’s rail shipments in December.
New Delhi: A businessman was allegedly robbed of Rs 1.4 crore at gunpoint by bike-borne men after intercepting his car in outer Delhi’s Rani Bagh area, police said Friday. The incident took place on Friday evening when Vinod, a resident of Rani Bagh, was returning home and suddenly his car was intercepted by the bike-borne men, they said. The men, wearing helmet, forced him to get off his vehicle by pointing a pistol at him and robbed of Rs 1.4 crore. Also Read – After eight years, businessman arrested for kidnap & murder One among them took his car while others fled on their motorcycles, the police said. The men drove away the trader’s car containing the money, but abandoned it some distance away, the police said. The police have recovered the car and are looking for fingerprints that may help them to nab the accused. Vinod’s car was found abandoned over a kilometre from the crime spot an hour later. The bag containing the cash was missing, police said. They are scanning through CCTV footage around the crime spot as well as the route to the place where the car was found abandoned. Further investigation is underway, police said.