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A welder is a person or equipment that fuses materials together . The term welder refers to the operator, the machine is referred to as the welding power supply . The materials to be joined can be metals (such as steel , aluminum , brass , stainless steel etc.) or varieties of plastic or polymer . Welders typically have to have good dexterity and attention to detail, as well as technical knowledge about the materials being joined and best practices in the field.

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87-431: Welding, without the proper precautions appropriate for the process, can be a dangerous and unhealthy practice. However, with the use of new technology and proper protection, the risks of injury and death associated with welding can be greatly reduced. Because many common welding procedures involve an open electric arc or a flame, the risk of burns is significant. To prevent them, welders wear personal protective equipment in

174-492: A wage or salary ). Amateur participation in sport at lower levels is often called "grassroots sport". The popularity of spectator sport as a recreation for non-participants has led to sport becoming a major business in its own right, and this has incentivised a high paying professional sport culture, where high performing participants are rewarded with pay far in excess of average wages, which can run into millions of dollars. Some sports, or individual competitions within

261-408: A "part of the job." Welders can be shocked by faulty conditions in the welding circuit, or, from the work lead clamp, a grounded power tool that is on the bench (the workpiece or the electrode). All of these types of shocks come from the welding electrode terminal. Often these shocks are minor and are misdiagnosed as being an issue with a power tool or the power supply to the welder's area. However,

348-717: A ball has crossed the goal line or not. The technology is not compulsory, but was used in the 2014 FIFA World Cup in Brazil, and the 2015 FIFA Women's World Cup in Canada, as well as in the Premier League from 2013–14 , and the Bundesliga from 2015–16 . In the NFL , a referee can ask for a review from the replay booth, or a head coach can issue a challenge to review the play using replays. The final decision rests with

435-469: A definition is provided by the Global Association of International Sports Federations (GAISF), which is the association for all the largest international sports federations (including association football , athletics , cycling , tennis , equestrian sports , and more), and is therefore the de facto representative of international sport. GAISF uses the following criteria, determining that

522-471: A disability have no equivalent in able-bodied sports. Masters sport , senior sport , or veteran sport is an age category of sport, that usually contains age groups of those 35 and older. It may concern unaltered or adapted sport activities, with and without competitions. Competitions The competition element of sport, along with the aesthetic appeal of some sports, result in the popularity of people attending to watch sport being played. This has led to

609-709: A faceplate that self-darkens upon exposure to high amounts of UV light. To protect bystanders, opaque welding curtains often surround the welding area. These curtains, made of a polyvinyl chloride plastic film, shield nearby workers from exposure to the UV light from the electric arc, but should not be used to replace the filter glass used in helmets. Welders are also often exposed to dangerous gases and particulate matter. Processes like flux-cored arc welding and shielded metal arc welding produce smoke containing particles of various types of oxides , which in some cases can lead to medical conditions like metal fume fever . The size of

696-445: A full-length gown, helmet, glass eye coverings, gloves and boots (see Plague doctor costume ) to prevent contagion when dealing with plague victims. These were made of thick material which was then covered in wax to make it water-resistant . A mask with a beak-like structure was filled with pleasant-smelling flowers, herbs and spices to prevent the spread of miasma , the prescientific belief of bad smells which spread disease through

783-445: A job-related eye injury that requires medical attention. Eye injuries can happen through a variety of means. Most eye injuries occur when solid particles such as metal slivers, wood chips, sand or cement chips get into the eye. Smaller particles in smokes and larger particles such as broken glass also account for particulate matter-causing eye injuries. Blunt force trauma can occur to the eye when excessive force comes into contact with

870-534: A line first. It can also be determined by judges who are scoring elements of the sporting performance, including objective or subjective measures such as technical performance or artistic impression. Records of performance are often kept, and for popular sports, this information may be widely announced or reported in sport news . Sport is also a major source of entertainment for non-participants, with spectator sport drawing large crowds to sport venues , and reaching wider audiences through broadcasting . Sport betting

957-913: A purpose serve to protect the skin. Lab coats for example, are worn to protect against potential splashes of chemicals. Face shields serve to protect one's face from potential impact hazards, chemical splashes or possible infectious fluid. Many migrant workers need training in PPE for Heat Related Illnesses prevention (HRI). Based on study results, research identified some potential gaps in heat safety education. While some farm workers reported receiving limited training on pesticide safety, others did not. This could be remedied by incoming groups of farm workers receiving video and in-person training on HRI prevention. These educational programs for farm workers are most effective when they are based on health behavior theories, use adult learning principles and employ train-the-trainer approaches. Each day, about 2,000 US workers have

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1044-586: A regular sports season , followed in some cases by playoffs . Sport is generally recognised as system of activities based in physical athleticism or physical dexterity , with major competitions admitting only sports meeting this definition. Some organisations, such as the Council of Europe , preclude activities without any physical element from classification as sports. However, a number of competitive, but non-physical, activities claim recognition as mind sports . The International Olympic Committee who oversee

1131-409: A single person with others being done by hundreds. Most sports take place either in teams or competing as individuals. Some sports allow a "tie" or "draw", in which there is no single winner; others provide tie-breaking methods to ensure one winner. A number of contests may be arranged in a tournament format, producing a champion . Many sports leagues make an annual champion by arranging games in

1218-769: A small number of mind sports, it is not open to admitting any further mind sports. There has been an increase in the application of the term "sport" to a wider set of non-physical challenges such as video games , also called esports (from "electronic sports"), especially due to the large scale of participation and organised competition, but these are not widely recognised by mainstream sports organisations. According to Council of Europe , European Sports Charter, article 2.i, " 'Sport' means all forms of physical activity which, through casual or organised participation, aim at expressing or improving physical fitness and mental well-being, forming social relationships or obtaining results in competition at all levels." There are opposing views on

1305-567: A sport should: They also recognise that sport can be primarily physical (such as rugby or athletics ), primarily mind (such as chess or Go ), predominantly motorised (such as Formula 1 or powerboating ), primarily co-ordination (such as snooker and other cue sports ), or primarily animal-supported (such as equestrian sport ). The inclusion of mind sports within sport definitions has not been universally accepted, leading to legal challenges from governing bodies in regards to being denied funding available to sports. Whilst GAISF recognises

1392-471: A sport, retain a policy of allowing only amateur sport . The Olympic Games started with a principle of amateur competition with those who practised a sport professionally considered to have an unfair advantage over those who practised it merely as a hobby. From 1971, Olympic athletes were allowed to receive compensation and sponsorship, and from 1986, the IOC decided to make all professional athletes eligible for

1479-437: Is a problem at some national and international sporting contests. Female participation in sports continues to rise alongside the opportunity for involvement and the value of sports for child development and physical fitness . Despite increases in female participation during the last three decades, a gap persists in the enrollment figures between male and female players in sports-related teams. Female players account for 39% of

1566-428: Is applied to traditional categories of clothing, and protective gear applies to items such as pads, guards, shields, or masks, and others. PPE suits can be similar in appearance to a cleanroom suit . The purpose of personal protective equipment is to reduce employee exposure to hazards when engineering controls and administrative controls are not feasible or effective to reduce these risks to acceptable levels. PPE

1653-516: Is common for popular sports to attract large broadcast audiences, leading to rival broadcasters bidding large amounts of money for the rights to show certain events. The football World Cup attracts a global television audience of hundreds of millions; the 2006 final alone attracted an estimated worldwide audience of well over 700 million and the 2011 Cricket World Cup Final attracted an estimated audience of 135 million in India alone. In

1740-462: Is in some cases severely regulated, and in others integral to the sport. According to A.T. Kearney , a consultancy, the global sporting industry is worth up to $ 620 billion as of 2013. The world's most accessible and practised sport is running , while association football is the most popular spectator sport. The word "sport" comes from the Old French desport meaning " leisure ", with

1827-545: Is low certainty evidence that supports making improvements or modifications to PPE in order to help decrease contamination. Examples of modifications include adding tabs to masks or gloves to ease removal and designing protective gowns so that gloves are removed at the same time. In addition, there is low certainty evidence that the following PPE approaches or techniques may lead to reduced contamination and improved compliance with PPE protocols: Wearing double gloves, following specific doffing (removal) procedures such as those from

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1914-724: Is needed when there are hazards present. PPE has the serious limitation that it does not eliminate the hazard at the source and may result in employees being exposed to the hazard if the equipment fails. Any item of PPE imposes a barrier between the wearer/user and the working environment. This can create additional strains on the wearer, impair their ability to carry out their work and create significant levels of discomfort. Any of these can discourage wearers from using PPE correctly, therefore placing them at risk of injury, ill-health or, under extreme circumstances, death. Good ergonomic design can help to minimise these barriers and can therefore help to ensure safe and healthy working conditions through

2001-704: Is not available or other engineering control systems are not feasible or inadequate. In the United Kingdom, an organization that has extensive expertise in respiratory protective equipment is the Institute of Occupational Medicine . This expertise has been built on a long-standing and varied research programme that has included the setting of workplace protection factors to the assessment of efficacy of masks available through high street retail outlets. The Health and Safety Executive (HSE), NHS Health Scotland and Healthy Working Lives (HWL) have jointly developed

2088-497: Is often overlooked as an occupational hazard, as it is not visible to the eye. Overall, about 22 million workers in the United States are exposed to potentially damaging noise levels each year. Occupational hearing loss accounted for 14% of all occupational illnesses in 2007, with about 23,000 cases significant enough to cause permanent hearing impairment. About 82% of occupational hearing loss cases occurred to workers in

2175-505: Is tasked towards actively conducting studies on respirators and providing recommendations. Surgical masks are sometimes considered as PPE, but are not considered as respirators, being unable to stop submicron particles from passing through, and also having unrestricted air flow at the edges of the masks. Surgical masks are not certified for the prevention of tuberculosis . Occupational skin diseases such as contact dermatitis , skin cancers , and other skin injuries and infections are

2262-481: Is used in most English dialects to describe the overall concept (e.g. "children taking part in sport"), with "sports" used to describe multiple activities (e.g. "football and rugby are the most popular sports in England"). American English uses "sports" for both terms. The precise definition of what differentiates a sport from other leisure activities varies between sources. The closest to an international agreement on

2349-842: The 1936 Summer Olympics held in Berlin , and the 1936 Winter Olympics held in Garmisch-Partenkirchen , to promote the Nazi ideology of the superiority of the Aryan race , and inferiority of the Jews and other " undesirables ". Germany used the Olympics to give off a peaceful image while secretly preparing for war. When apartheid was the official policy in South Africa, many sports people, particularly in rugby union , adopted

2436-941: The AIDS Healthcare Foundation , leading to several citations brought by Cal/OSHA . The failure to use condoms by adult film stars was a violation of Cal/OSHA's Blood borne Pathogens Program, Personal Protective Equipment. This example shows that personal protective equipment can cover a variety of occupations in the United States, and has a wide-ranging definition. The National Defense Authorization Act for 2022 defines personal protective equipment as Equipment for use in preventing spread of disease, such as by exposure to infected individuals or contamination or infection by infectious material (including nitrile and vinyl gloves, surgical masks, respirator masks and powered air purifying respirators and required filters, face shields and protective eyewear, surgical and isolation gowns, and head and foot coverings) or clothing, and

2523-620: The European Parliament and Council of the European Union under the ordinary legislative procedure before being published in the Official Journal of the European Union and becoming law. Research studies in the form of randomized controlled trials and simulation studies are needed to determine the most effective types of PPE for preventing the transmission of infectious diseases to healthcare workers. There

2610-666: The European Union level, personal protective equipment is governed by Directive 89/686/EEC on personal protective equipment (PPE). The Directive is designed to ensure that PPE meets common quality and safety standards by setting out basic safety requirements for personal protective equipment, as well as conditions for its placement on the market and free movement within the EU single market. It covers "any device or appliance designed to be worn or held by an individual for protection against one or more health and safety hazards". The directive

2697-646: The Gaelic Athletic Association (GAA) if she/he played or supported Association football , or other games seen to be of British origin. Until recently the GAA continued to ban the playing of football and rugby union at Gaelic venues. This ban, also known as Rule 42, is still enforced, but was modified to allow football and rugby to be played in Croke Park while Lansdowne Road was redeveloped into Aviva Stadium . Until recently, under Rule 21,

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2784-539: The Olympic Games recognises both chess and bridge as sports. SportAccord , the international sports federation association, recognises five non-physical sports: chess, bridge, draughts , Go and xiangqi . However, they limit the number of mind games which can be admitted as sports. Sport is usually governed by a set of rules or customs , which serve to ensure fair competition. Winning can be determined by physical events such as scoring goals or crossing

2871-489: The war on drugs encourage youth sport as a means to increase educational participation and to fight the illegal drug trade . According to the Center for Injury Research and Policy at Nationwide Children's Hospital , the biggest risk for youth sport is death or serious injury including concussion . These risks come from running, basketball, association football, volleyball, gridiron, gymnastics, and ice hockey. Youth sport in

2958-467: The CDC, and providing people with spoken instructions while removing PPE. Sports Sport is a form of physical activity or game . Often competitive and organized , sports use, maintain, or improve physical ability and skills . They also provide enjoyment to participants and, in some cases, entertainment to spectators. Many sports exist, with different participant numbers, some are done by

3045-715: The European or international level by the European Committee for Standardization (CEN, CENELEC) and the International Organization for Standardization in relation to the design and manufacture of the product. Usage of the harmonized standards is voluntary and provides presumption of conformity. However, manufacturers may choose an alternative method of complying with the requirements of the Directive. Personal protective equipment excluded from

3132-657: The GAA also banned members of the British security forces and members of the RUC from playing Gaelic games, but the advent of the Good Friday Agreement in 1998 led to the eventual removal of the ban. Nationalism is often evident in the pursuit of sport, or in its reporting: people compete in national teams, or commentators and audiences can adopt a partisan view. On occasion, such tensions can lead to violent confrontation among players or spectators within and beyond

3219-523: The IOC or SportAccord are required to implement a testing programme, looking for a list of banned drugs, with suspensions or bans being placed on participants who test positive for banned substances. Violence in sports involves crossing the line between fair competition and intentional aggressive violence. Athletes, coaches, fans, and parents sometimes unleash violent behaviour on people or property, in misguided shows of loyalty, dominance, anger, or celebration. Rioting or hooliganism by fans in particular

3306-471: The NIOSH recommendation should be provided with hearing protection by the employers, as they are a low-cost intervention. A personal attenuation rating can be objectively measured through a hearing protection fit-testing system. The effectiveness of hearing protection varies with the training offered on their use. This form of PPE is all-encompassing and refers to the various suits and uniforms worn to protect

3393-413: The Olympics, with the exceptions of boxing , and wrestling. Technology plays an important part in modern sport. It is a necessary part of some sports (such as motorsport), and it is used in others to improve performance. Some sports also use it to allow off-field decision making. Sports science is a widespread academic discipline, and can be applied to areas including athlete performance, such as

3480-558: The RPE (Respiratory Protective Equipment) Selector Tool, which is web-based. This interactive tool provides descriptions of different types of respirators and breathing apparatuses, as well as "dos and don'ts" for each type. In the United States, The National Institute for Occupational Safety and Health (NIOSH) provides recommendations on respirator use, in accordance to NIOSH federal respiratory regulations 42 CFR Part 84. The National Personal Protective Technology Laboratory (NPPTL) of NIOSH

3567-518: The US is a $ 15 billion industry including equipment up to private coaching. Disabled or adaptive sports are played by people with a disability , including physical and intellectual disabilities . As many of these are based on existing sports modified to meet the needs of people with a disability, they are sometimes referred to as adapted sports . However, not all disabled sports are adapted; several sports that have been specifically created for people with

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3654-624: The United States, the championship game of the NFL , the Super Bowl , has become one of the most watched television broadcasts of the year. Super Bowl Sunday is a de facto national holiday in America; the viewership being so great that in 2015, advertising space was reported as being sold at $ 4.5m for a 30-second slot. Sport can be undertaken on an amateur, professional or semi-professional basis, depending on whether participants are incentivised for participation (usually through payment of

3741-790: The activity will be enjoyed for its own sake. The well-known sentiment by sports journalist Grantland Rice , that it is "not that you won or lost but how you played the game", and the modern Olympic creed expressed by its founder Pierre de Coubertin : "The most important thing... is not winning but taking part" are typical expressions of this sentiment. Key principles of sport include that the result should not be predetermined, and that both sides should have equal opportunity to win. Rules are in place to ensure fair play, but participants can break these rules in order to gain advantage. Participants may cheat in order to unfairly increase their chance of winning, or in order to achieve other advantages such as financial gains. The widespread existence of gambling on

3828-457: The air breathed by the user. The filtration may be either passive or active (powered) . Gas masks and particulate respirators (like N95 masks ) are examples of this type of respirator. A second type of respirator protects users by providing clean, respirable air from another source. This type includes airline respirators and self-contained breathing apparatus (SCBA). In work environments, respirators are relied upon when adequate ventilation

3915-457: The air. In more recent years, scientific personal protective equipment is generally believed to have begun with the cloth facemasks promoted by Wu Lien-teh in the 1910–11 Manchurian pneumonic plague outbreak, although some doctors and scientists of the time doubted the efficacy of facemasks in preventing the spread of that disease since they didn't believe it was transmitted through the air. Personal protective equipment can be categorized by

4002-456: The amount of oxygen in the air and keeping combustible materials away from the workplace. Welders with expertise in welding pressurized vessels, including submarine hulls, industrial boilers, and power plant heat exchangers and boilers, are generally referred to as boilermakers . A lot of welders relate to getting small electrical shocks from their equipment. Occasionally, welders might work in damp crowded environments and they consider it to be

4089-415: The ancient Olympics up to the present century. Industrialisation has brought motorised transportation and increased leisure time , letting people attend and follow spectator sports and participate in athletic activities. These trends continued with the advent of mass media and global communication. Professionalism became prevalent, further adding to the increase in sport's popularity, as sports fans followed

4176-590: The area of the body protected, by the type of hazard, and by the type of garment or accessory. A single item – for example, boots – may provide multiple forms of protection: a steel toe cap and steel insoles for protection of the feet from crushing or puncture injuries, impervious rubber and lining for protection from water and chemicals, high reflectivity and heat resistance for protection from radiant heat, and high electrical resistivity for protection from electric shock. The protective attributes of each piece of equipment must be compared with

4263-471: The community in sports such as mass media campaigns, educational sessions, and policy changes. There is also no high-quality studies that investigate the effect of such interventions in promoting healthy behaviour change in the community. sports is one of the important part of life Benito Mussolini used the 1934 FIFA World Cup , which was held in Italy, to showcase Fascist Italy . Adolf Hitler also used

4350-483: The conscientious approach that they should not appear in competitive sports there. Some feel this was an effective contribution to the eventual demolition of the policy of apartheid, others feel that it may have prolonged and reinforced its worst effects. In the history of Ireland, Gaelic sports were connected with cultural nationalism . Until the mid-20th century a person could have been banned from playing Gaelic football , hurling , or other sports administered by

4437-428: The correct use of PPE. Practices of occupational safety and health can use hazard controls and interventions to mitigate workplace hazards, which pose a threat to the safety and quality of life of workers. The hierarchy of hazard controls provides a policy framework which ranks the types of hazard controls in terms of absolute risk reduction. At the top of the hierarchy are elimination and substitution , which remove

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4524-561: The end of the match time. Artifacts and structures suggest sport in China as early as 2000 BC. Gymnastics appears to have been popular in China's ancient past. Monuments to the Pharaohs indicate that a number of sports, including swimming and fishing, were well-developed and regulated several thousands of years ago in ancient Egypt . Other Egyptian sports included javelin throwing, high jump, and wrestling. Ancient Persian sports such as

4611-585: The exploits of professional athletes – all while enjoying the exercise and competition associated with amateur participation in sports. Since the turn of the 21st century, there has been increasing debate about whether transgender sports people should be able to participate in sport events that conform with their post-transition gender identity . Sportsmanship is an attitude that strives for fair play, courtesy toward teammates and opponents, ethical behaviour and integrity, and grace in victory or defeat. Sportsmanship expresses an aspiration or ethos that

4698-415: The eye. Chemical burns, biological agents, and thermal agents, from sources such as welding torches and UV light , also contribute to occupational eye injury. While the required eye protection varies by occupation, the safety provided can be generalized. Safety glasses provide protection from external debris, and should provide side protection via a wrap-around design or side shields. Industrial noise

4785-466: The form of heavy leather gloves and protective long sleeve jackets to avoid exposure to extreme heat and flames. Additionally, the brightness of the weld area leads to a condition called arc eye in which ultraviolet light causes the inflammation of the cornea and can burn the retinas of the eyes. Full face welding helmets with dark face plates are worn to prevent this exposure, and in recent years, new helmet models have been produced that feature

4872-414: The hands, gloves are an essential item in providing skin protection. Some examples of gloves commonly used as PPE include rubber gloves , cut-resistant gloves , chainsaw gloves and heat-resistant gloves. For sports and other recreational activities, many different gloves are used for protection, generally against mechanical trauma. Other than gloves, any other article of clothing or protection worn for

4959-406: The hazard entirely or replace the hazard with a safer alternative. If elimination or substitution measures cannot be applied, engineering controls and administrative controls – which seek to design safer mechanisms and coach safer human behavior – are implemented. Personal protective equipment ranks last on the hierarchy of controls, as the workers are regularly exposed to

5046-441: The hazard, with a barrier of protection. The hierarchy of controls is important in acknowledging that, while personal protective equipment has tremendous utility, it is not the desired mechanism of control in terms of worker safety. Early PPE such as body armor , boots and gloves focused on protecting the wearer's body from physical injury . The plague doctors of sixteenth-century Europe also wore protective uniforms consisting of

5133-492: The hazards expected to be found in the workplace. More breathable types of personal protective equipment may not lead to more contamination but do result in greater user satisfaction. Respirators are protective breathing equipment, which protect the user from inhaling contaminants in the air, thus preserving the health of their respiratory tract. There are two main types of respirators. One type of respirator functions by filtering out chemicals and gases, or airborne particles, from

5220-414: The host broadcaster, a number of different technologies are used during an umpire or player review, including instant replays, Hawk-Eye , Hot Spot and Real Time Snickometer . Hawk-Eye is also used in tennis to challenge umpiring decisions. Research suggests that sports have the capacity to connect youth to positive adult role models and provide positive development opportunities, as well as promote

5307-427: The impact of losing on less able participants, there has been an introduction of non-competitive physical activity to traditionally competitive events such as school sports days , although moves like this are often controversial. In competitive events, participants are graded or classified based on their "result" and often divided into groups of comparable performance, (e.g. gender, weight and age). The measurement of

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5394-509: The impact of technical advantage between participants. For example, in 2010, full-body, non-textile swimsuits were banned by FINA , as they were enhancing swimmers' performances. The increase in technology has also allowed many decisions in sports matches to be taken, or reviewed, off-field, with another official using instant replays to make decisions. In some sports, players can now challenge decisions made by officials. In Association football , goal-line technology makes decisions on whether

5481-431: The learning and application of life skills . In recent years the use of sport to reduce crime , as well as to prevent violent extremism and radicalization , has become more widespread, especially as a tool to improve self-esteem , enhance social bonds and provide participants with a feeling of purpose. There is no high-quality evidence that shows the effectiveness of interventions to increase sports participation of

5568-557: The manufacturing sector. In the US the Occupational Safety and Health Administration establishes occupational noise exposure standards. The National Institute for Occupational Safety and Health recommends that worker exposures to noise be reduced to a level equivalent to 85 dBA for eight hours to reduce occupational noise-induced hearing loss . PPE for hearing protection consists of earplugs and earmuffs . Workers who are regularly exposed to noise levels above

5655-468: The materials and components thereof, other than sensors, electronics, or other items added to and not normally associated with such personal protective equipment or clothing. Under this Act, US military services are prohibited from purchasing PPE from suppliers in North Korea, China, Russia or Iran, unless there are problems with the supply or cost of PPE of "satisfactory quality and quantity". At

5742-454: The more likely cause is from stray welding current which occurs when current from the welding cables leaks into the welder's work area. Often this is not a serious problem, however, under the right circumstances, this can be fatal to the welder or anyone else inside the work area. When a welder feels a shock, they should take a minute to inspect the welding cables and ensure that they are clean and dry, and, that there are no cracks or gouges out of

5829-599: The necessity of competition as a defining element of a sport, with almost all professional sports involving competition, and governing bodies requiring competition as a prerequisite of recognition by the International Olympic Committee (IOC) or GAISF. Other bodies advocate widening the definition of sport to include all physical activity. For instance, the Council of Europe include all forms of physical exercise, including those competed just for fun. In order to widen participation, and reduce

5916-481: The oldest definition in English from around 1300 being "anything humans find amusing or entertaining". Other meanings include gambling and events staged for the purpose of gambling; hunting; and games and diversions, including ones that require exercise. Roget's defines the noun sport as an "activity engaged in for relaxation and amusement" with synonyms including diversion and recreation. The singular term "sport"

6003-446: The particles in question tends to influence the toxicity of the fumes, with smaller particles presenting a greater danger. Additionally, many processes produce fumes and various gases, most commonly carbon dioxide and ozone , that can prove dangerous if ventilation is inadequate. Furthermore, because the use of compressed gases and flames in many welding processes pose an explosion and fire risk, some common precautions include limiting

6090-572: The referee. A video referee (commonly known as a Television Match Official or TMO) can also use replays to help decision-making in rugby (both league and union ). In international cricket, an umpire can ask the Third umpire for a decision, and the third umpire makes the final decision. Since 2008, a decision review system for players to review decisions has been introduced and used in ICC -run tournaments, and optionally in other matches. Depending on

6177-412: The result may be objective or subjective, and corrected with "handicaps" or penalties. In a race, for example, the time to complete the course is an objective measurement. In gymnastics or diving the result is decided by a panel of judges, and therefore subjective. There are many shades of judging between boxing and mixed martial arts, where victory is assigned by judges if neither competitor has lost at

6264-596: The result of sports events can affect the results. A study published in the Proceedings of the National Academy of Sciences showed that when the home team wins the game before the election, the incumbent candidates can increase their share of the vote by 1.5 per cent. A loss had the opposite effect, and the effect is greater for higher-profile teams or unexpected wins and losses. Also, when Washington Redskins win their final game before an election, then

6351-450: The results of sports events creates a motivation for match fixing , where a participant or participants deliberately work to ensure a given outcome rather than simply playing to win. The competitive nature of sport encourages some participants to attempt to enhance their performance through the use of medicines, or through other means such as increasing the volume of blood in their bodies through artificial means . All sports recognised by

6438-687: The rubber casing around the wire. These precautions may be life-saving to the welders. Notable people who have worked as welders include: Personal protective equipment Personal protective equipment ( PPE ) is protective clothing , helmets , goggles , or other garments or equipment designed to protect the wearer's body from injury or infection . The hazards addressed by protective equipment include physical, electrical, heat, chemical, biohazards , and airborne particulate matter . Protective equipment may be worn for job-related occupational safety and health purposes, as well as for sports and other recreational activities . Protective clothing

6525-509: The scope of the Directive includes: The European Commission is currently working to revise Directive 89/686/EEC. The revision will look at the scope of the Directive, the conformity assessment procedures and technical requirements regarding market surveillance. It will also align the Directive with the New Legislative Framework . The European Commission is likely to publish its proposal in 2013. It will then be discussed by

6612-516: The scope of the Directive is divided into three categories: Directive 89/686/EEC on personal protective equipment does not distinguish between PPE for professional use and PPE for leisure purposes. Personal protective equipment falling within the scope of the Directive must comply with the basic health and safety requirements set out in Annex II of the Directive. To facilitate conformity with these requirements, harmonized standards are developed at

6699-419: The second-most common type of occupational disease and can be very costly. Skin hazards, which lead to occupational skin disease, can be classified into four groups. Chemical agents can come into contact with the skin through direct contact with contaminated surfaces, deposition of aerosols, immersion or splashes. Physical agents such as extreme temperatures and ultraviolet or solar radiation can be damaging to

6786-407: The skin over prolonged exposure. Mechanical trauma occurs in the form of friction, pressure, abrasions, lacerations and contusions. Biological agents such as parasites, microorganisms, plants and animals can have varied effects when exposed to the skin. Any form of PPE that acts as a barrier between the skin and the agent of exposure can be considered skin protection. Because much work is done with

6873-558: The specific phenomenon of spectator sport. Both amateur and professional sports attract spectators, both in person at the sport venue, and through broadcast media including radio , television and internet broadcast. Both attendance in person and viewing remotely can incur a sometimes substantial charge, such as an entrance ticket, or pay-per-view television broadcast. Sports league and tournament are two common arrangements to organise sport teams or individual athletes into competing against each other continuously or periodically. It

6960-658: The sporting venue, as in the Football War . These trends are seen by many as contrary to the fundamental ethos of sport being carried on for its own sake and for the enjoyment of its participants. Sport and politics collided in the 1972 Olympics in Munich. Masked men entered the hotel of the Israeli Olympic team and killed many of their men. This was known as the Munich massacre . A study of US elections has shown that

7047-575: The time of Ancient Greece and the military culture and the development of sport in Greece influenced one another considerably. Sport became such a prominent part of their culture that the Greeks created the Olympic Games , which in ancient times were held every four years in a small village in the Peloponnesus called Olympia . Sports have been increasingly organised and regulated from the time of

7134-465: The total participation in US interscholastic athletics. Certain sports are mixed-gender , allowing (or even requiring) men and women to play on the same team. One example of this is Baseball5 , which is the first mixed-gender sport to have been admitted into an Olympic event. Youth sport presents children with opportunities for fun, socialisation, forming peer relationships, physical fitness , and athletic scholarships . Activists for education and

7221-403: The traditional Iranian martial art of Zoorkhaneh had a close connection to warfare skills. Among other sports that originated in ancient Persia are polo and jousting . Various traditional games of India such as Kho kho and Kabbadi have been played for thousands of years. The kabaddi was played potentially as a preparation for hunting. A wide range of sports were already established by

7308-460: The use of video analysis to fine-tune technique, or to equipment, such as improved running shoes or competitive swimwear . Sports engineering emerged as a discipline in 1998 with an increasing focus not just on materials design but also the use of technology in sport, from analytics and big data to wearable technology . In order to control the impact of technology on fair play, governing bodies frequently have specific rules that are set to control

7395-408: The user from harm. Lab coats worn by scientists and ballistic vests worn by law enforcement officials, which are worn on a regular basis, would fall into this category. Entire sets of PPE, worn together in a combined suit, are also in this category. Below are some examples of ensembles of personal protective equipment, worn together for a specific occupation or task, to provide maximum protection for

7482-494: The user: Participants in sports often wear protective equipment. Studies performed on the injuries of professional athletes, such as that on NFL players, question the effectiveness of existing personal protective equipment. The definition of what constitutes personal protective equipment varies by country. In the United States, the laws regarding PPE also vary by state. In 2011, workplace safety complaints were brought against Hustler and other adult film production companies by

7569-737: Was adopted on 21 January 1989 and came into force on 1 July 1992. The European Commission additionally allowed for a transition period until 30 June 1995 to give companies sufficient time to adapt to the legislation. After this date, all PPE placed on the market in EU Member States was required to comply with the requirements of Directive 89/686/EEC and carry the CE Marking . Article 1 of Directive 89/686/EEC defines personal protective equipment as any device or appliance designed to be worn or held by an individual for protection against one or more health and safety hazards. PPE which falls under

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