ONeil Beckford, one of 17 apprentice riders who graduated from the Jockeys’ School in September of last year, rode his first winner when 4-1 chance SOJOURNER TRUTH romped the eighth race for $180,000 conditional claimers over the straight five course at Caymanas Park yesterday. A past student of Tacius Golding High in St Catherine, Beckford, 26, could not hide his glee when he passed the post first aboard his 58th ride, standing tall in the saddle with his whip hand raised high in celebration. Having secured three rides on the 10-race programme, Beckford said that he was looking forward to his first winner in SOJOURNER TRUTH, especially when it was learnt that the hot ante-post favourite, BARS OF GOLD, was a late non-starter. “She had shown improved form in her last two races, and with Bars of Gold out, I knew this was a golden opportunity for me to finally win a race. SOJOURNERTRUTH usually runs her best races over the straight when fully fit, and she delivered today by three lengths,” he explained. SOJOURNER TRUTH is owned by All-Stars Pro and trained by Paul Hylton. The 8-y-o bay mare by Skipping out of Augus Mawnin was winning her first race in well over a year. Beckford, who is apprenticed to veteran trainer Vin Edwards, thus became the 12th graduate from the last batch to ride a winner. Looking ahead, the young rider said he would work even harder to maintain his weight (51.0kg) and establish himself as a go to claiming apprentice. Meanwhile, BRAVE PROSPECT, running as the 2-1 second favourite, ran on strongly to beat long-time leader and 3-2 favourite FRANKENSTORM by three lengths in the Millard Ziadie Memorial Cup feature over 1100 metres. The 4-y-o colt by Seeking The Glory out of the 1999 derby winner Good Prospect, was ridden by Kerry-Gayle Robinson for in-form trainer Neive Graham and leading owner O’Shaun Connection. Eleven ran. – O.C.
Love it, looks very expensive and everyone that see it compliment it. Looks stylish and adds interest to your hairdo. Beautiful hair accessory bought to use as shawl stick pin. Strong and stunning hair adornmentColourful hair pinVery pretty, but Very pretty & so well made i would recommend. I got it today, it’s lovely, i like it, so beautiful. Everyone always comments on how beautiful it is. I got it today, it’s lovely, i like it, so beautiful. So nice my daughter borrowed it before i had a chance to wear it. Very pleased with all products especially the the regis fry pans. This is well made- and looks so pretty and is very good value. Bought as gift for my 28 year old daughter, she loves it. Very pleased with all products especially the the regis fry pans. Really pretty and a perfect colour for my daughter long red hair. So nice my daughter borrowed it before i had a chance to wear it. Delighted with the quality of this. Much happier than i expected. Green hair accessory, not blue. Good enough at first sight, however the colour is not as expected, being as it is green and not blue. . But luckily as this is a gift the recipient isn’t expecting blue so. . It would be helpful to have an accurate description with the colour correct, especially as it is a bit of a wait for delivery, may be an expected hair accessory for a particular outfit colour. Looks strong enough for the job of holding a pony tail in place, but time will tell. Absolutely lovely – really nice colour and not too big/heavy. It-works really well i don’t need to use anything else and it looks quite expensive. Itwould make a lovely inexpensive gift for any age group. It is colourful and beautiful. The design is great with the length. And good craftsmanship as well. A bit of it came off, but i have jewellery tools and fixed it. This item makes you stand out in the crowd, in a good way. Great design and excellent strength. Arrives in suggested time, great design and excellent strength. Better than it looks on picture and something different. A very nice hairpiece indeed and arrived in good time. One star dropped as i really am looking for a light turquoise and this is more sea turquoise. Charming accompaniment to a ladies attire. Absolutely lovely – really nice colour and not too big/heavy. It-works really well i don’t need to use anything else and it looks quite expensive. Itwould make a lovely inexpensive gift for any age group. SummaryReviewer Nathalie DuboisReview Date2017-11-01 17:23:02Reviewed Item Colorful Vintage Retro Style Butterfly Beaded Antique Brass Hair Stick Pin Clip w/ Tassel for Long Hair PonytailRating 5.0 / 5 stars, based on 65 reviewsPrice£2.79
The Rise and Rise of Mobile Payment Technology Why IoT Apps are Eating Device Interfaces As Geek.com wrote at the time:If someone accidentally drops his or her phone, the always-on accelerometer will detect that it’s falling too quickly and will deploy the miniature airbags to cushion a potential impact with the ground or floor. Other possibilities suggest puffing out streams of gas to slow down the fall, or using springs instead of airbags.Right.The Insurance OptionFinally, instead of protecting the phone itself, another option is to protect against financial losses from a ruined phone. Extended warranties such as Apple Care are popular, if costly, for example. Other options include insurance plans from mobile carriers. These typically cost around $10 per month and – unfortunately – carry a steep deductible. But since replacing a brand new smartphone without a contract can cost $600 or more, these options may make sense for some consumers. And you don’t have to wait for a technology breakthrough.Lead image courtesy of Sony Mobile. Image of iPhone dunked in water from Liquipel. Image of smartphone airbag patent via the USPTO. Tags:#smartphone A smartphone is probably the most advanced piece of technology most people own. We take these devices with us everywhere, we use them all the time. Odds are high we will drop them – onto the floor, into water or even onto hard pavement. Even if you got the phone for free with a contract, this tiny slip-up could cost you hundreds of dollars to replace or repair the device. (See also My Week With Android, Or Why I’m Buying An iPhone 5.)Meet The Indestructible SmartphoneIt doesn’t have to be that way. Several companies are already working on building much more rugged smartphones.At this year’s CES trade show in Las Vegas, for example, Sony demonstrated its “waterproof” Xperia Z. According to Sony, the Xperia Z can survive in up to 3 feet of water for up to 30 minutes.Sprint, meanwhile, has just introduced the Kyocera Torque, which it calls the “splashproof, drop-proof smartphone that can handle all of the elements of your rugged world.” According to Sprint, its drop tests were from a maximum height of 5 feet, 9 inches. Kyocera is even using Bear Grylls, of Man vs Wild fame, to promote the ruggedness of the device. The company claims the Torque meets IP67 ratings for dust and water immersion and Military Standard 810G for dust, shock, vibration, temperature extremes, low pressure, solar radiation, salt fog, humidity and immersion in 1 meter of water for 30 minutes. Phew!The problem, of course, is that kind of protection often makes the devices too bulky, too heavy and too costly – and many of these ruggedized smartphones may not include the latest hardware. They may also be not terribly attractive.The Torque, for example, weights 5.9 ounces – compared to the iPhone 5’s 3.9 ounces – and is wrapped inside a thick, greyish rubber casing. In its review of the Torque – despite being impressed with its ability to withstand “pretty brutal treatment” – AllThingsD was disappointed in the device’s speed and camera:The Torque’s five-megapixel, rear-facing camera was disappointing. It was slow to fire up. I took more than a dozen photos in various settings — natural light, indoor light and darker scenes with and without flash — and all of the photos came out a little grainy. Meet Graphene: Tougher Technology On The WaySoon, however, thanks to the “wonder material” graphene, light, attractive, smash-proof and waterproof smartphones could become commonplace. According to the BBC, graphene could enable:Mobile phones that fold, razor-thin handsets powered by flexible batteries or see-through solar panels built directly into a colourful screen. The BBC notes that single-atom-thick sheets of graphene: Conduct electricity better than copper, has strength greater than steel and also shows extraordinary elasticity. So great is its potential that in 2010 its discoverers Andre Geim and Konstantin Novoselov were awarded the Nobel prize for Physics.Graphene is durable, see-through and available – it comes from highly abundant graphite. The problem is both cost and graphene’s current inability to practically control microelectronics as robustly as silicon can. This has not stopped Samsung, Nokia and IBM from investing heavily in the material. How To Protect Your Existing PhoneUntil graphene and other materials, such as nanobites, can succeed in the market, smartphone owners will have choose between bulk and vulnerability. Bumpers and protective cases certainly help make phones more rugged, for example, but add size and weight. And they typically don’t help protect against water damage.For that, there’s a new service called Liquipel, which made a, er, splash, at last month’s Mobile World Congress in Barcelona, Spain. Liquipel offers after-market waterproofing for smartphones and tablets. As the company notes:Liquipel applies a very thin layer of a water repelling substance on all the surfaces of the object, by exposing them to a gas in a special chamber. Because the substance is gaseous, it can trickle into every corner of the device, thus ensuring total protection. The best thing about it is the fact that all ports, like USB or audio, remain accessible and functional.While customers must currently mail in their device to the treatment, the company says it is rolling out “LiquiPod” machines at various retail locations.Smartphone Airbags?Surprisingly, one of the more outrageous methods to protect smartphones was developed by Amazon CEO, Jeff Bezos. In 2012, Bezos and Amazon VP Greg Heart were awarded a patent for a “smartphone airbag system.” What it Takes to Build a Highly Secure FinTech … Role of Mobile App Analytics In-App Engagement Related Posts brian s hall
This post was written as part of the IBM for Midsize Business program, which provides midsize businesses with the tools, expertise and solutions they need to become engines of a smarter planet. I’ve been compensated to contribute to this program, but the opinions expressed in this post are my own and don’t necessarily represent IBM’s positions, strategies or opinions.I just finished reading my friends at IBM’s new ERP guide called Integrated ERP Guide: Expert Answers to Your Most Frequently Asked Questions. The section that I believe is critically overlooked is on page, 11: “executive sponsor’s commitment.” In my experience, this is how software investments fail to produce their promised results.It doesn’t matter what kind of software system you install, without leadership truly embracing the acquisition and use of the system, it will fail.Massive software systems like ERP (even for small and medium sized businesses) can do wonders to help give you control, to give you insight, and to help you take your business to the next level. It’s the same thing with sales force automation; the software can definitely help you improve your business. But only if it is really adopted by the end users and key stakeholders.The major mistake I’ve seen in implementations with small, medium, and large businesses, is that leadership isn’t engaged in the process of making sure that the software is utilized. They love the idea of the software itself. They’re enamored with the promise of how it’s going to remake their business. But they’re not deeply engaged enough with the execution of the software before, during, and after the installation to get the initiative all the way over the line. This is why they never get the full benefit of their software investments.What Leaders Should Do?So what should leaders do?First, know that your involvement doesn’t end once you sign the contract acquiring the new software. Instead you have to provide a vision of what the execution needs to look like. You need to share that vision with everyone involved, especially the key stakeholders and peer users. You have to constantly reinforce your vision.Second you need to set expectations about the software’s utilization and the accountabilities surrounding your initiatives. It isn’t enough just to purchase the software. You have to ensure that it generates the results that you were after when you acquire the software. This is where your key stakeholders can help. They need to share your vision and ensure that processes are put in place (lest everyone go back to sending each other emailed spreadsheets).Finally, you need to put some key people in charge of the implementation and execution. The people you really want on projects like this are the people that are most passionate about the project. This doesn’t necessarily mean that you put people with the right title or the right position on your org chart in charge of implementation and execution. You want the fire-breathing, passionate end users, those who will spread the gospel and proselytize their peers.If you are going to spend the money and leverage technology, ensuring you get the return you want requires the additional investment of your leadership.QuestionsWhy do most software implementations fail to produce the promised returns?What is leadership’s role in ensuring that their investments produce those results?How should a leader ensure that key stakeholders execute?Why do you want passionate end users on software implementation project teams?
Thiruvananthapuram, Jul 5(PTI) Sporting innovative, almost completely in-house designed architecture, a low-cost bionic hand that can help forearm amputees regain a measure of their prior grasping and holding capabilities received an enthusiastic response at a product demonstration here today. Not only is the prototype potentially much more customisable and user-friendly than products currently available in the market, the 3-D printed device is expected to eventually be priced at a fraction of its competitors costs. “When it hits the market, our creation will probably fetch between Rs 1-1.25 lakh whereas existing bionic hands cost in excess of Rs 10 lakh. “The reason we are able to pass on the savings to the customer is due to the cost-effective and custom-built tech that has gone into our hand,” CEO of Onbyz, a city-based startup that has developed the device, Sanju Mathew said. Mathew put the second generation prototype through its paces at a live demo conducted as part of the one-day Disrupt Kerala 2017 conference held across four venues in Technopark on Wednesday. The conference, marking the 50th edition of the FAYA:80 tech conclave series, was organised by the Kerala Startup Mission (KSUM) in association with NASSCOM and ICFOSS. Onbyzs bionic hand works through electrodes that transmit signal over wires from the intact nerves and muscles in the elbow to a microprocessor that directs the digits to move. This set-up allows the user to manipulate the hand to grip objects. While the movement isnt real-time just yet, the lag between signal input and output is expected to decrease further along the development process. The third generation device is also expected to make the move to wireless use and charging and include removable batteries that can function for three to four hours at a go without an external power source, a press release said. PTI UD ROH TRKadvertisement
Touch Football will be one of 41 sports on offer at the eighth Pan Pacific Masters Games on the Gold Coast in November. The Masters Games will run from Saturday, 3 November through to Sunday, 11 November 2012 with the Touch Football part of the event to be played from Wednesday, 7 November to Saturday, 10 November. 15 divisions will be on offer for the Touch Football part of the event, with four Women’s (30+, 35+, 40+, 45+), seven Men’s (30+, 35+, 40+, 45+, 50+, 55+, 60+) and four Mixed divisions (W30+/M35+, W35+/M40+, W40+/M45+, W45+/M50+). The Pan Pacific Masters Games is a celebration of masters’ sport with both fierce and friendly competition and a jam-packed entertainment program at the Games Village at the end of each day. For more information regarding the Touch Football component at the 2012 Pan Pacific Masters Games, please click on the link below: http://www.mastersgames.com.au/default.asp?PageID=13124Related LinksPan Pacific Games
Long live the queen of CanCon. (Lauren Tamaki) Advertisement All 14 of the Dion sibs — baby Céline included — would perform at their mom and dad’s piano bar back in the day, and there are stories of her singing songs on top of the family dinner table when she was barely out of Pampers. But this moment, animated by Siobhan Gallagher, illustrates a turning point in Céline’s life. Céline Dion turns 50 this week, and since the moment she entered the world — belting a pitch-perfect high E that would melt bonhommes de neiges and make lumberjacks weep — Céline’s never stopped moving.She’s so loved, in our country and beyond. I can’t imagine a world without her.– Lauren Tamaki , artistThe pride of Charlemagne, Que. has been working a stage since childhood, and as special tribute on this milestone birthday, CBC Arts commissioned six Canadian artists to salute the queen of CanCon. From the Titanic era to her current fashion-monster moment, it’s an animated timeline of her life and career.1973: Introducing Céline Facebook Advertisement Advertisement LEAVE A REPLY Cancel replyLog in to leave a comment Login/Register With: (Siobhan Gallagher) Twitter
Source:https://healthsciences.ku.dk/newsfaculty-news/2019/03/new-proof-that-narcolepsy-is-an-autoimmune-disease/ Reviewed by Kate Anderton, B.Sc. (Editor)Mar 15 2019Researchers from the University of Copenhagen have discovered autoreactive cells in persons suffering from narcolepsy. This is a new, important proof that the sleep disorder is an autoimmune disease. This knowledge may lead to better treatment of the chronic condition, the researchers behind the new discovery believe.For many years, scientists have expected the sleep disorder narcolepsy of being an autoimmune disease, though without being able to prove it conclusively. Now researchers from the Faculty of Health and Medical Sciences at the University of Copenhagen together with the Technical University of Denmark and Rigshospitalet have found a new, important proof that their presumptions were correct. The new research results have been published in the scientific journal Nature Communications.’We have found autoreactive cytotoxic CD8 T cells in the blood of narcolepsy patients. That is, the cells recognise the neurons that produce hypocretin which regulates a person’s waking state. It does not prove that they are the ones that killed the neurons, but it is an important step forward. Now we know what the cells are after,’ says Associate Professor Birgitte Rahbek Kornum from the Department of Neuroscience.The immune system is designed to recognise viruses and bacteria. When its cells are autoreactive – which is the case in autoimmune diseases – the immune system recognises the body’s own cells and attacks them. That they are cytotoxic means that they are capable of killing other cells. In most narcolepsy patients, the neurons that produce hypocretin and thus regulate our waking state have been destroyed.’To kill other cells, e.g. neurons producing hypocretin, CD4 and CD8 T cells usually have to work together. In 2018, scientists discovered autoreactive CD4 T cells in narcolepsy patients. This was really the first proof that narcolepsy is in fact an autoimmune disease. Now we have provided more, important proof: that CD8 T cells are autoreactive too,’ says Birgitte Rahbek Kornum.Related StoriesMore than 936 million people have sleep apnea, ResMed-led analysis revealsSleep quality and fatigue among women with premature ovarian insufficiencySleep disorders in patients with low back pain linked to increased healthcare visits, costsAutoreactive Cells Were Also Found in Healthy IndividualsIn the study, the researchers studied and analysed blood samples from 20 persons with narcolepsy. In addition, they analysed blood samples from a control group of 52 healthy persons. In nearly all 20 narcolepsy patients the researchers found autoreactive CD8 T cells. But autoreactivity was not only found in persons suffering from the sleep disorder. The researchers also discovered autoreactive cells in a lot of the healthy individuals.’We also found autoreactive cells in some of the healthy individuals, but here the cells probably have not been activated. It is something we see more and more often with autoimmunity – that it lies dormant in all of us, but is not activated in everyone. The next big puzzle is learning what activates them’, says Birgitte Rahbek Kornum.According to Birgitte Rahbek Kornum, the discovery of autoreactive cells in healthy individuals also stresses the theory that something has to trigger narcolepsy and activate autoreactivity. Scientists still do not know what causes the disease. They expect a combination of genetics, autoreactive cells and a form of trigger to bring about the disease, e.g. a virus infection. The disease can be treated medically today, but the new research results may pave the way for even better treatments.’Now there will probably be more focus on trying to treat narcolepsy with drugs allaying the immune system. This has already been attempted, though, because the hypothesis that it is an autoimmune disease has existed for many years. But now that we know that it is T cell-driven, we can begin to target and make immune treatments even more effective and precise,’ says Birgitte Rahbek Kornum.
UPDATED graphic on the Christchurch shooting attack Friday. © 2019 AFP New Zealand wants answers from tech giants after mosque attack livestream Explore further Facebook has hired about 20,000 moderators but critics say they are not doing enough.David Ibsen, executive director of US-based Counter Extremism Project, charged: “The technology to prevent this from happening is available. Social media firms have made the decision not to invest in adopting it.” As the alleged gunman callously picked off his victims in Christchurch’s Al Noor mosque, he livestreamed the gruesome scene on Facebook Live Facebook says it removed a staggering 1.5 million videos showing harrowing viral footage of the Christchurch mosque rampage but criticism of social media giants for failing to block images of the “real-time terror attack” is also spreading fast. 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. As the alleged gunman callously picked off his victims in Christchurch’s Al Noor mosque, he livestreamed the gruesome scene on Facebook Live, apparently using a camera mounted on his body, after also tweeting a racist “manifesto.”Facebook said it “quickly” removed the video, plus the gunman’s account and Instagram, and in the first 24 hours scrubbed 1.5 million videos worldwide “of which 1.2 million were blocked at upload.”Spokeswoman Mia Garlick from Facebook New Zealand said the firm was “working around the clock to remove violating content using a combination of technology and people.”But despite pleas—and official orders from authorities—not to share the content, the footage proliferated widely online and experts said the 17-minute video was easily retrievable several hours after the attack that killed 50 people.According to Facebook’s own figures, at least 300,000 videos were not blocked before being uploaded and there is no official data on how many times these were viewed or shared.New Zealand Prime Minister Jacinda Ardern said authorities did whatever they could to purge the web of the images but laid the responsibility at the door of the Silicon Valley giants.”Ultimately it has been up to those platforms to facilitate their removal,” she told reporters. “For a brief period this morning the Mirror website ran some edited footage filmed by the gunman in Christchurch. We should not have carried this. It is not in line with our policy relating to terrorist propaganda videos,” its editor tweeted.British journalist Krishnan Guru-Murthy described the posting of the “murder video” as a “new low in clickbait.”And the Australian Communications and Media Authority has launched a “formal investigation” into whether any firms broke the law after Sky News Australia broadcast the footage.For its part, AFP analysed a copy of the video and confirmed it was genuine via a digital investigation but did not broadcast the footage to its clients.Social media expert and Buzzfeed journalist Craig Silverman said the killer “created the equivalent of a multiplatform content strategy” that was “meticulously planned.””Newsrooms, platforms, and public officials need to think about how to avoid playing into the hands of people whose deadly actions are designed to trigger maximum exposure for their message, and set off new cycles of violence and radicalisation,” wrote Silverman. “I do think that there are further questions to be answered. Obviously these social media platforms have wide reach. This is a problem that goes well beyond New Zealand.””This is an issue that I will look to be discussing with Facebook,” she warned.According to the New Zealand Herald, some major firms are considering pulling ads from Facebook and the anger is evident from an op-ed in that paper from one of its business writers.”At the moment, it feels like my kids are at risk of seeing live snuff films on Facebook, just so (boss) Mark Zuckerberg can get fractionally richer.”‘Enough is enough’This was not the first time Facebook Live has been used to broadcast atrocities—a murder was livestreamed in the US city of Cleveland in 2017—and Facebook and Twitter say they have invested in technology and human resources to combat the problem. Citation: Facebook scrubs 1.5mn Christchurch attack videos but criticism goes viral (2019, March 18) retrieved 17 July 2019 from https://phys.org/news/2019-03-facebook-15mn-christchurch-videos-criticism.html According to New Zealand reports, some major firms are considering pulling ads from Mark Zuckerberg’s Facebook as a result of the livestreaming incident Forensic experts collect evidence near one of the attacked mosques in Christchurch New Zealand’s prime minister vowed to toughen the country’s gun laws after revealing Saturday that the man accused of murdering 49 people in two mosques legally purchased the arsenal of firearms used in the massacre. Jacinda Ardern said the gunman, 28-year-old Australian Brenton Tarrant, obtained a “Category A” gun licence in November 2017 and began purchasing the five weapons used in Friday’s attacks in the southern city of Christchurch the following month. And world leaders and authorities are beginning to indicate they may try to take matters into their own hands.Australian Prime Minister Scott Morrison acknowledged that while social media companies have indicated willingness to take action, “clearly the capability to deliver on that willingness hasn’t been present. That is the problem.””There needs to be the capability to be able to shut this—these horrific things—down immediately and if you can’t do that, then the responsibility of having those features available is something that really generally needs to be questioned,” he added.British Home Secretary Sajid Javid also urged social media giants to do more. “Take some ownership. Enough is enough.”Courts are also taking almost immediate action, with a Christchurch 18-year-old—whose name was suppressed by the judge—charged with distributing the video and inciting violence with a post that said “target acquired”. He faces a maximum of 14 years in prison for each charge.’New low in clickbait’Critics have also slammed some mainstream media for broadcasting the video, with some UK tabloids briefly posting excerpts before apparently reconsidering.
Read a statement about rock cairns from the National Park Service. Trail markers and art projects While many cairn traditions are very old, one type of cairn-building feels distinctly modern. There’s a controversial trend of artistically stacking stones in the wilderness, expressly to post pictures to social media. Conservationists criticize these amateur stacks, saying they can be confused for trail markers, and lead hikers astray. They also note that these amateur piles can disturb wildlife when they’re built or fall apart and that they leave a human mark in places that should be left in a more natural state. Most of these artistic stone stacks are not easily confused with older cairns, which, over hundreds of years, have had soil and vegetation build up around the rocks. Historical cairns may be so old that they’ve sunken into the ground, have been covered in lichen, or are otherwise obscured from view. The scale is also typically different. Older cairns may be made of stones too large for a single person to easily move, or they may consist of thousands of individual rocks. For example, at a Mohican stone memorial pile at Monument Mountain, in western Massachusetts, it was customary for visitors to add a stone. The votive cairn was 18 feet long and 6 feet high when it was first described in detail by a colonist in 1762, said Lucianne Lavin, the director of research and collections at the Institute for American Indian Studies in Washington, Connecticut. What were rock cairns for? The word cairn comes from Scottish Gaelic. In Scotland, burial cairns are well-known, but there are many possible uses for cairns, which vary from culture to culture. In the West, native peoples have sometimes constructed burial cairns, Zedeño said, but there’s no clear evidence for astrology-based cairn positions. Instead, at memorial sites that are sometimes confusingly called medicine wheels, a central cairn might be surrounded by other cairns that point toward important places in a person’s life. In Montana, Zedeño has studied a series of cairns built around 500 years ago by the ancestors of modern-day Blackfeet Indians to funnel herds of buffalo to their death at cliff sites called buffalo jumps. The cairn construction displays a great deal of organization and understanding of buffalo behavior. “A site could have anywhere from 500 to 5,000 cairns,” Zedeño said. “It’s very large-scale landscape engineering.” In the northeastern United States, grave sites are just one possible context for cairns, Lavin said. They take other forms, including animal effigies and split stones filled with smaller rocks that are considered portals to the underworld. There are also stone ceremonial grounds that were built in spiritually significant places, with astrological stones that marked the position of celestial bodies in the sky at the start and end of dayslong festivals. But the origin or purpose of Native American cairns or other stone features is often disputed in the region. “There are some archaeologists who think that everything is farm clearing,” Lavin said. In other words, the stones are just piles of rocks that have been pulled from an agricultural field. “There are other archaeologists, including myself, who realize that there are a diversity of features out there.” She points to records from settlers, like the accounts of Monument Mountain, as evidence that Native Americans were building stone structures in Colonial America. The question isn’t just academic. Cairns are sometimes destroyed by construction, and recognition of these sites by the government is critical to preserving their ongoing cultural value to Native Americans, Lavin said. Additional resources: Certain forms of rock cairns are still used today, for example, as trail markers. Credit: Shutterstock Learn more about Zedeño’s work on buffalo jumps at Archaeology.org Correction: This article was updated on June 17, 2019 to state that the ancient cairns in northeastern United States may have served various cultural purposes and grave sites are just one possibility. View cairns in a location database from Historic Environment Scotland. Rock cairns are human-made stacks, mounds or piles of rocks. They take different forms, and have been built by cultures around the world for many different purposes. Cairns may serve as monuments, burial sites, navigational aids (by land or sea), or ceremonial grounds, among other uses. They may stand alone, in clusters, or in a network of related cairns; for example, as trail markers in a park. Larger cairns can withstand time and weather, and archaeologists believe that some examples are hundreds of years old. Rock cairns are considered cultural features, or parts of a landscape built by humans. They’re similar to works built with larger stones, such as megaliths, earthen mounds or stone geoglyphs, which are stones arranged to outline an image when seen from above. Cairns aren’t just structures — their locations may be carefully chosen, and the construction process or ceremonial use may be culturally important. Because of this, rock cairns can be “very difficult to understand without looking at a landscape scale,” said María Nieves Zedeño, an archaeologist at the University of Arizona. [Spectacular Images Reveal Mysterious Stone Structures in Saudi Arabia]Advertisement Mysterious ‘Super-Henge’ Found Near StonehengeHigh resolution ground-penetrating radar and other archeological technologies has revealed up to 9 large intentionally placed stones outlining a crescent-shaped arena less than 2 miles away from the well-known Stonehenge in the UK Durrington Walls area. The site was home to a large Neolithic prehistoric settlement built about 4,500 yearsago.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 facebook twitter 发邮件 reddit 链接https://www.livescience.com/65687-rock-cairns.html?jwsource=cl已复制直播00:0001:2001:20Your Recommended Playlist01:33Better Bug Sprays?04:24Sperm Whale Befriends Underwater Robot00:29Robot Jumps Like a Grasshopper, Rolls Like a Ball01:08Why Do French Fries Taste So Bad When They’re Cold?01:09Robots to the Rescue02:27Robotic Arms关闭