|
Ski Helmet
A ski helmet is a helmet specifically designed and constructed for winter sports. Use was rare until about 2000, but by about 2010 the majority of skiers and snowboarders in the US and Europe wore helmets. Helmets are available in many styles and typically consist of a hard plastic/resin shell with inner padding. Modern ski helmets may include many additional features, such as vents, earmuffs, headphones, goggle mounts, and camera mounts. Risks In terms of injuries per 1,000 skier or snowboarder days, Switzerland reports around 3.5, Norway 1.5, Vermont, US, 1.9, and Canada 2.5. The death rate in the US is about one per million visits, of which more than half are related to head injuries. Studies from Switzerland, Germany, Austria, Norway and Canada show that the proportion of head injuries is estimated at 15% for ski injuries and 16% for snowboard injuries. 74% of head injuries occur when skiers hit their head on the snow, 10% when they collide with other skiers, and 13% when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Svenja Würth (GER) 2017
Svenja Würth (born 20 August 1993) is a German nordic combined skier and former ski jumper Ski jumping is a winter sport in which competitors aim to achieve the farthest jump after sliding down on their skis from a specially designed curved ramp. Along with jump length, competitor's aerial style and other factors also affect the fin .... Nordic combined results World Championships References External links * 1993 births Living people German female ski jumpers German female Nordic combined skiers FIS Nordic World Ski Championships medalists in ski jumping Sportspeople from Rosenheim Skiers from Upper Bavaria People from Freudenstadt (district) Skiers from Karlsruhe (region) 21st-century German sportswomen {{Germany-skijumping-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CE Marking
The presence of the logo on Product (business), commercial products indicates that the Manufacturing, manufacturer or importer affirms the goods' conformity with European Environment, health and safety, health, safety, and environmental protection Technical standard, standards. It is not a quality indicator or a certification mark. The CE marking is required for goods sold in the European Economic Area (EEA); goods sold elsewhere may also carry the mark. The mark indicates that the product may be traded freely in any part of the European Economic Area, regardless of its country of origin. It consists of the CE logo and, if applicable, the four digit identification number of the notified body involved in the conformity assessment procedure. Meaning The mark on a product indicates that the manufacturer or importer of that product affirms its compliance with the relevant European Union law, EU legislation and the product may be sold anywhere in the European Economic Area (EEA) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headgear
Headgear, headwear, or headdress is any element of clothing which is worn on one's Human head, head, including hats, helmets, turbans and many other types. Headgear is worn for many purposes, including protective clothing, protection against the elements, decorative, decoration, or for religious or cultural reasons, including social conventions. Purposes Protection or defence Headgear may be worn for protective clothing, protection against cold (such as the Canadian tuque), heat, rain and other Precipitation (meteorology), precipitation, glare, sunburn, sunstroke, dust, contaminants, etc. Helmets are worn for protection in battle or against impact, for instance when riding bicycles or motor vehicles. Fashion Headgear can be an article of fashion, usually hats, caps or hood (headgear), hoods. The formal man's black silk top hat was formerly an indispensable portion of the suit, and women's hats have, over the years, attained a fantastic number of shapes ranging from immense c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowboarding
Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider's feet. It features in the Winter Olympic Games and Winter Paralympic Games. Snowboarding was developed in the United States, inspired by skateboarding, sledding, surfing, and skiing. It became popular around the world and was introduced as a Winter Olympic Sport at Nagano in 1998 and featured in the Winter Paralympics at Sochi in 2014. , its popularity (as measured by equipment sales) in the United States peaked in 2007 and has been in a decline since. History The first snowboards were developed in 1965 when Sherm Poppen, an engineer in Muskegon, Michigan, invented a toy for his daughters by fastening two skis together and attaching a rope to one end so he would have some control as they stood on the board and glided downhill. Dubbed the "snurfer" (combining snow and surfer) by his wife Nancy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skiing Equipment
Skiing is the use of skis to glide on snow for basic transport, a recreational activity, or a competitive winter sport. Many types of competitive skiing events are recognized by the International Olympic Committee (IOC), and the International Ski and Snowboard Federation (FIS). History Skiing has a history of almost five millennia. Although modern skiing has evolved from beginnings in Scandinavia, it may have been practiced more than 100 centuries ago in the Altai Mountains, according to an interpretation of ancient paintings. However, this continues to be debated. The word "ski" comes from the Old Norse word "skíð" which means to "split piece of wood or firewood". Asymmetrical skis were used in northern Finland and Sweden until at least the late 19th century. On one foot, the skier wore a long straight non-arching ski for sliding, and a shorter ski was worn on the other foot for kicking. The underside of the short ski was either plain or covered with animal skin to ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Risk Compensation
Risk compensation is a theory which suggests that people typically adjust their behavior in response to perceived levels of risk, becoming more careful where they sense greater risk and less careful if they feel more protected. Although usually small in comparison to the fundamental benefits of safety interventions, it may result in a lower net benefit than expected or even higher risks. "Behavioural adaptation generally does not eliminate the safety gains from programmes, but tends to reduce the size of the expected effects" By way of example, it has been observed that motorists drove closer to the vehicle in front when the vehicles were fitted with anti-lock brakes. There is also evidence that the risk compensation phenomenon could explain the failure of condom distribution programs to reverse HIV prevalence and that condoms may foster disinhibition, with people engaging in risky sex both with and without condoms. By contrast, shared space is an urban street design method wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meta-analysis
Meta-analysis is a method of synthesis of quantitative data from multiple independent studies addressing a common research question. An important part of this method involves computing a combined effect size across all of the studies. As such, this statistical approach involves extracting effect sizes and variance measures from various studies. By combining these effect sizes the statistical power is improved and can resolve uncertainties or discrepancies found in individual studies. Meta-analyses are integral in supporting research grant proposals, shaping treatment guidelines, and influencing health policies. They are also pivotal in summarizing existing research to guide future studies, thereby cementing their role as a fundamental methodology in metascience. Meta-analyses are often, but not always, important components of a systematic review. History The term "meta-analysis" was coined in 1976 by the statistician Gene V. Glass, Gene Glass, who stated ''"Meta-analysis refers t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snell Memorial Foundation
The Snell Memorial Foundation is a nonprofit organization created to provide a high quality standard of safety for helmets. Founded in 1957, the foundation is named after William "Pete" Snell, a popular sports car racer who died in 1956 of head injuries he received when the racing helmet he wore failed to protect his head. A group of friends, scientists, physicians, and others joined together to create a group that would promote research and education as well as test and develop standards to improve the effectiveness of helmets. Standards *B-95 Bicycle helmets *B-95C Children's bicycle helmets *E2001 Equestrian helmets *H2000 Harness racing helmets *L-98 Mopeds and Low Powered Vehicles *M2015 Motorcycle helmets *M2020 Helmet Standard for Motorcycling *N-94 Undefined or general use helmets used in sports and industry *RS-98 Recreational Skiing & Snowboarding helmets *SA2005 Auto racing helmets *SA2015 — 2015 Helmet Standard For Use in Competitive Automotive Sports *SA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASTM
ASTM International, formerly known as American Society for Testing and Materials, is a standards organization that develops and publishes voluntary consensus technical international standards for a wide range of materials, products, systems and services. Some 12,575 apply globally. The headquarters is in West Conshohocken, Pennsylvania, about northwest of Philadelphia. It was founded in 1902 as the American Section of the International Association for Testing Materials. In addition to its traditional standards work, ASTM operates several global initiatives advancing additive manufacturing, advanced manufacturing, and emerging technologies, including the Additive Manufacturing Center of Excellence (AM CoE), the acquisition oWohlers Associatesfor market intelligence and advisory services, and the NIST-funded Standardization Center of Excellence (SCOE). History In 1898, a group of scientists and engineers, led by chemist, industry leader, and proponent of standardization Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Product Certification
Product certification or product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications (sometimes called "certification schemes" in the product certification industry). Most product certification bodies (or product certifiers) are accredited to or aligned with ISO/IEC 17065 Conformity assessment—Requirements for bodies certifying products, processes and services (previously ISO/IEC Guide 65:1996)ISO/IEC Guide 65:1996 an international standard for ensuring competence in those organizations performing product, process and service certifications. The organizations that perform this accreditation are called Accreditation Bodies, and they themselves are assessed by international peers against the ISO 17011 standard. Examples of some certification schemes include the Safety Equipment Institute (SEI) for PPE, the U.S. Fed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrain Park
A terrain park or snow park is an outdoor recreation area containing terrain that allows skiers, snowboarders and snowbikers to perform tricks. Terrain parks have their roots in skateparks and many of the features are common to both. From their inception to as recently as the 1980s, ski areas generally banned jumping and any kind of aerial maneuvers, usually under penalty of revoking the offender's lift ticket. By the 1990s, most areas provided snow features specifically catering to aerial snowsports. One of the first in-bounds terrain parks was the snowboard park built in 1990 at Vail's (Colorado) resort. The park was copied soon in other resorts. Today most resorts have terrain parks, with many having multiple parks of various difficulty. Some resorts are almost exclusively terrain parks such as Echo Mountain Park in Evergreen, Colorado and Snow Park in Wānaka, New Zealand. In Colorado there has been a recent trend for defunct resorts such as Squaw Pass (now Echo M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
