114-593: Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing . Asphyxia causes generalized hypoxia , which affects all the tissues and organs, some more rapidly than others. There are many circumstances that can induce asphyxia, all of which are characterized by the inability of a person to acquire sufficient oxygen through breathing for an extended period of time. Asphyxia can cause coma or death. In 2015, about 9.8 million cases of unintentional suffocation occurred which resulted in 35,600 deaths. The word asphyxia
228-572: A cascade method, Swiss chemist and physicist Raoul Pierre Pictet evaporated liquid sulfur dioxide in order to liquefy carbon dioxide, which in turn was evaporated to cool oxygen gas enough to liquefy it. He sent a telegram on December 22, 1877, to the French Academy of Sciences in Paris announcing his discovery of liquid oxygen . Just two days later, French physicist Louis Paul Cailletet announced his own method of liquefying molecular oxygen. Only
342-522: A crowd crush during the match, making it Russia's worst sporting disaster. In 1989, Spartak won its last USSR Championship, rivals Dynamo Kyiv 2–1 in the closing round. Spartak's striker Valery Shmarov scored the "golden" free kick with almost no time left. The next season, Spartak reached the European Cup semi-final, consequently eliminating Napoli on penalties and Real Madrid (with 3–1 away victory), but losing to Marseille . A new page in
456-598: A gladiator -slave who led a rebellion against Rome . Starostin is also credited with the creation of the Spartak logo. The same year, the club became a part of newly created Spartak sports society . Czechoslovak manager Antonin Fivebr is credited as the first head coach of Spartak, though he worked as a consultant in several clubs simultaneously. In 1936, the Soviet Top League was established, where its first championship
570-477: A chemical element. The name oxygen was coined in 1777 by Antoine Lavoisier , who first recognized oxygen as a chemical element and correctly characterized the role it plays in combustion. Common industrial uses of oxygen include production of steel , plastics and textiles , brazing, welding and cutting of steels and other metals , rocket propellant , oxygen therapy , and life support systems in aircraft , submarines , spaceflight and diving . One of
684-503: A controlling stake in the club was bought by Leonid Fedun, real steps were taken to promote the stadium project, and in 2006, the Government of Moscow allocated land at Tushino Aeropol at a size of 28.3 hectares for the construction of the stadium. The project involved the main arena of 42,000 people with natural lawn, sports, and an entertainment hall for tennis, handball, basketball and volleyball for 12,000 spectators. The ceremony of laying
798-434: A few drops of the liquid were produced in each case and no meaningful analysis could be conducted. Oxygen was liquefied in a stable state for the first time on March 29, 1883, by Polish scientists from Jagiellonian University , Zygmunt Wróblewski and Karol Olszewski . In 1891 Scottish chemist James Dewar was able to produce enough liquid oxygen for study. The first commercially viable process for producing liquid oxygen
912-473: A foreign body: Oxygen Oxygen is a chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table , a highly reactive nonmetal , and a potent oxidizing agent that readily forms oxides with most elements as well as with other compounds . Oxygen is the most abundant element in Earth's crust , and the third-most abundant element in
1026-452: A hand over their nose and mouth, while using the other hand to push the victim's jaw up. The corpses had no visible injuries, and were supplied to medical schools for money. Compressive asphyxia (also called chest compression) is mechanically limiting expansion of the lungs by compressing the torso, preventing breathing. " Traumatic asphyxia " or "crush asphyxia" usually refers to compressive asphyxia resulting from being crushed or pinned under
1140-405: A hand, pillow, or a plastic bag. Smothering can be either partial or complete, where partial indicates that the person being smothered is able to inhale some air, although less than required. In a normal situation, smothering requires at least partial obstruction of both the nasal cavities and the mouth to lead to asphyxia. Smothering with the hands or chest is used in some combat sports to distract
1254-427: A large weight or force, or in a crowd crush . An example of traumatic asphyxia is a person who jacks up a car to work on it from below, and is crushed by the vehicle when the jack fails. Constrictor snakes such as boa constrictors kill through slow compressive asphyxia, tightening their coils every time the prey breathes out rather than squeezing forcefully. In cases of an adult co-sleeping with an infant ("overlay"),
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#17328686510241368-481: A light sky-blue color caused by absorption in the red (in contrast with the blue color of the sky, which is due to Rayleigh scattering of blue light). High-purity liquid O 2 is usually obtained by the fractional distillation of liquefied air. Liquid oxygen may also be condensed from air using liquid nitrogen as a coolant. Liquid oxygen is a highly reactive substance and must be segregated from combustible materials. The spectroscopy of molecular oxygen
1482-419: A low oxygen atmosphere, or in a vacuum; environments where sufficiently oxygenated air is present, but cannot be adequately breathed because of air contamination such as excessive smoke. Other causes of oxygen deficiency include but are not limited to: Smothering is a mechanical obstruction of the flow of air from the environment into the mouth and/or nostrils, for instance, by covering the mouth and nose with
1596-512: A major role in absorbing energy from singlet oxygen and converting it to the unexcited ground state before it can cause harm to tissues. The common allotrope of elemental oxygen on Earth is called dioxygen , O 2 , the major part of the Earth's atmospheric oxygen (see Occurrence ). O 2 has a bond length of 121 pm and a bond energy of 498 kJ/mol . O 2 is used by complex forms of life, such as animals, in cellular respiration . Other aspects of O 2 are covered in
1710-579: A newborn infant long enough to cause apparent harm. It results most commonly from a drop in maternal blood pressure or interference during delivery with blood flow to the infant's brain . This can occur as a result of inadequate circulation or perfusion , impaired respiratory effort, or inadequate ventilation . There has long been a scientific debate over whether newborn infants with asphyxia should be resuscitated with 100% oxygen or normal air. It has been demonstrated that high concentrations of oxygen lead to generation of oxygen free radicals , which have
1824-438: A part of air that he called spiritus nitroaereus . In one experiment, he found that placing either a mouse or a lit candle in a closed container over water caused the water to rise and replace one-fourteenth of the air's volume before extinguishing the subjects. From this, he surmised that nitroaereus is consumed in both respiration and combustion. Mayow observed that antimony increased in weight when heated, and inferred that
1938-404: A process called eutrophication and the decay of these organisms and other biomaterials may reduce the O 2 content in eutrophic water bodies. Scientists assess this aspect of water quality by measuring the water's biochemical oxygen demand , or the amount of O 2 needed to restore it to a normal concentration. Paleoclimatologists measure the ratio of oxygen-18 and oxygen-16 in
2052-462: A role in reperfusion injury after asphyxia. Research by Ola Didrik Saugstad and others led to new international guidelines on newborn resuscitation in 2010, recommending the use of normal air instead of 100% oxygen. Classifications of different forms of asphyxia vary among literature, with differences in defining the concept of mechanical asphyxia being the most obvious. In DiMaio and DiMaio's 2001 textbook on forensic pathology, mechanical asphyxia
2166-532: A similar mechanism are cave-ins , or when an individual is buried in sand, snow, dirt, or grain. In homicidal cases, the term burking is often ascribed to a killing method that involves simultaneous smothering and compression of the torso. The term "burking" comes from the method William Burke and William Hare used to kill their victims during the West Port murders . They killed the usually intoxicated victims by sitting on their chests and suffocating them by putting
2280-458: A small proportion of manganese dioxide. Oxygen levels in the atmosphere are trending slightly downward globally, possibly because of fossil-fuel burning. At standard temperature and pressure , oxygen is a colorless, odorless, and tasteless gas with the molecular formula O 2 , referred to as dioxygen. As dioxygen , two oxygen atoms are chemically bound to each other. The bond can be variously described based on level of theory, but
2394-660: A trade union public organization, was considered to be "the people's team". The history of the football club and sports society "Spartak" originates from the Russian Gymnastics Society ( RGO Sokol [ ru ] ), which was founded on 16 May 1883. The society was founded under the influence of the Pan-Slavic " Sokol movement " with the aim of promoting the "Sokolsk gymnastics" and then sports including fencing, wrestling, figure skating , skating, football, hockey, lawn tennis , boxing, skis, athletics, and cycling. In
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#17328686510242508-449: A triplet electronic ground state . An electron configuration with two unpaired electrons, as is found in dioxygen orbitals (see the filled π* orbitals in the diagram) that are of equal energy—i.e., degenerate —is a configuration termed a spin triplet state. Hence, the ground state of the O 2 molecule is referred to as triplet oxygen . The highest-energy, partially filled orbitals are antibonding , and so their filling weakens
2622-445: A weight of approximately 450 kg or 1000 lbs). In cases where people have stacked up on each other in a human pile, it has been estimated that those at the bottom are subjected to around 380 kg (840 lbs) of compressive weight. "Positional" or "restraint" asphyxia is when a person is restrained and left alone prone, such as in a police vehicle, and is unable to reposition themself in order to breathe. The death can be in
2736-570: Is a corrosive byproduct of smog and thus an air pollutant . Oxygen was isolated by Michael Sendivogius before 1604, but it is commonly believed that the element was discovered independently by Carl Wilhelm Scheele , in Uppsala , in 1773 or earlier, and Joseph Priestley in Wiltshire , in 1774. Priority is often given for Priestley because his work was published first. Priestley, however, called oxygen "dephlogisticated air", and did not recognize it as
2850-488: Is a Russian professional football club based in Moscow . Having won 12 Soviet championships (second only to Dynamo Kyiv ) and 10 Russian championships (a record jointly held with Zenit St Petersburg ), it is the country's most successful club. They have also won a record 10 Soviet Cups , 4 Russian Cups and one Russian Super Cup . Spartak have also reached the semi-finals of UEFA Europa League , UEFA Champions League and
2964-524: Is a district of Moscow renowned for the radical politics of its inhabitants; for example, it represented the centre of the Moscow uprising of 1905 . The team grew, building a stadium, supporting itself from ticket sales and playing matches across the Russian SFSR . As part of a 1926 reorganization of football in the Soviet Union, Starostin arranged for the club to be sponsored by the food workers union and
3078-477: Is absorbed by specialized respiratory organs called gills , through the skin or via the gut ; in terrestrial animals such as tetrapods , oxygen in air is actively taken into the body via specialized organs known as lungs , where gas exchange takes place to diffuse oxygen into the blood and carbon dioxide out, and the body's circulatory system then transports the oxygen to other tissues where cellular respiration takes place. However in insects ,
3192-508: Is associated with the atmospheric processes of aurora and airglow . The absorption in the Herzberg continuum and Schumann–Runge bands in the ultraviolet produces atomic oxygen that is important in the chemistry of the middle atmosphere. Excited-state singlet molecular oxygen is responsible for red chemiluminescence in solution. Table of thermal and physical properties of oxygen (O 2 ) at atmospheric pressure: Naturally occurring oxygen
3306-528: Is attributed to positional asphyxia. Therefore, passive deaths following custody restraint that are presumed to be the result of positional asphyxia may actually be examples of asphyxia occurring during the restraint process. Chest compression is a technique used in various grappling combat sports, where it is sometimes called wringing, either to tire the opponent or as complementary or distractive moves in combination with pinning holds , or sometimes even as submission holds . Examples of chest compression include
3420-566: Is caused by pressure from outside the body restricting respiration. Similar narrow definitions of mechanical asphyxia have occurred in Azmak's 2006 literature review of asphyxial deaths and Oehmichen and Auer's 2005 book on forensic neuropathology. According to DiMaio and DiMaio, mechanical asphyxia encompasses positional asphyxia, traumatic asphyxia, and "human pile" deaths. In Shkrum and Ramsay's 2007 textbook on forensic pathology, mechanical asphyxia occurs when any mechanical means cause interference with
3534-469: Is composed of three stable isotopes , O , O , and O , with O being the most abundant (99.762% natural abundance ). Most O is synthesized at the end of the helium fusion process in massive stars but some is made in the neon burning process . O is primarily made by the burning of hydrogen into helium during the CNO cycle , making it a common isotope in the hydrogen burning zones of stars. Most O
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3648-418: Is from Ancient Greek α- "without" and σφύξις sphyxis , "squeeze" (throb of heart). Situations that can cause asphyxia include but are not limited to: airway obstruction , the constriction or obstruction of airways, such as from asthma , laryngospasm , or simple blockage from the presence of foreign materials; from being in environments where oxygen is not readily accessible: such as underwater, in
3762-447: Is oxygen as a component of water, the major constituent of lifeforms. Oxygen in Earth's atmosphere is produced by biotic photosynthesis , in which photon energy in sunlight is captured by chlorophyll to split water molecules and then react with carbon dioxide to produce carbohydrates and oxygen is released as a byproduct . Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by
3876-441: Is produced when N (made abundant from CNO burning) captures a He nucleus, making O common in the helium-rich zones of evolved, massive stars . Fifteen radioisotopes have been characterized, ranging from O to O. The most stable are O with a half-life of 122.24 seconds and O with a half-life of 70.606 seconds. All of the remaining radioactive isotopes have half-lives that are less than 27 seconds and
3990-408: Is reasonably and simply described as a covalent double bond that results from the filling of molecular orbitals formed from the atomic orbitals of the individual oxygen atoms, the filling of which results in a bond order of two. More specifically, the double bond is the result of sequential, low-to-high energy, or Aufbau , filling of orbitals, and the resulting cancellation of contributions from
4104-712: Is temperature-dependent, and about twice as much ( 14.6 mg/L ) dissolves at 0 °C than at 20 °C ( 7.6 mg/L ). At 25 °C and 1 standard atmosphere (101.3 kPa ) of air, freshwater can dissolve about 6.04 milliliters (mL) of oxygen per liter , and seawater contains about 4.95 mL per liter. At 5 °C the solubility increases to 9.0 mL (50% more than at 25 °C) per liter for freshwater and 7.2 mL (45% more) per liter for sea water. Oxygen condenses at 90.20 K (−182.95 °C, −297.31 °F) and freezes at 54.36 K (−218.79 °C, −361.82 °F). Both liquid and solid O 2 are clear substances with
4218-435: Is the result of the oxygen cycle . This biogeochemical cycle describes the movement of oxygen within and between its three main reservoirs on Earth: the atmosphere, the biosphere, and the lithosphere . The main driving factor of the oxygen cycle is photosynthesis , which is responsible for modern Earth's atmosphere. Photosynthesis releases oxygen into the atmosphere, while respiration , decay , and combustion remove it from
4332-457: Is unusual among the planets of the Solar System in having such a high concentration of oxygen gas in its atmosphere: Mars (with 0.1% O 2 by volume) and Venus have much less. The O 2 surrounding those planets is produced solely by the action of ultraviolet radiation on oxygen-containing molecules such as carbon dioxide. The unusually high concentration of oxygen gas on Earth
4446-517: Is usually given priority in the discovery. The French chemist Antoine Laurent Lavoisier later claimed to have discovered the new substance independently. Priestley visited Lavoisier in October 1774 and told him about his experiment and how he liberated the new gas. Scheele had also dispatched a letter to Lavoisier on September 30, 1774, which described his discovery of the previously unknown substance, but Lavoisier never acknowledged receiving it (a copy of
4560-448: The 2005 season , Spartak, led by Aleksandrs Starkovs , finished second in the league to beat Lokomotiv Moscow , Zenit Saint Petersburg and Rubin Kazan to the last Champions League place. Following a mixed start to the 2006 season and public criticism from Dmitry Alenichev , the team's captain and one of its most experienced players, Starkovs left his position to Vladimir Fedotov . In
4674-525: The 2016–17 Russian Premier League with the squad, winning most derbies and ultimately finishing with a difference of 7 points. The following season, Spartak participated in the 2017–18 UEFA Champions League group stage. Despite suffering its greatest ever loss in a 7-0 result against Liverpool F.C. at Anfield , the club achieved considerable victories, including a 5-1 win against Sevilla FC . Having finished second 2020-21 Russian Premier League under manager Domenico Tedesco , whose contract expired at
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4788-444: The ECA until further notice due to Russia's invasion of Ukraine , and the clubs continued to play with themselves. On 29 May 2022, in the final match of Paolo Vanoli (manager since December 2021), Spartak won the 2021–22 Russian Cup . On August 22, 2022, PJSC Lukoil Oil Company announced the acquisition of Spartak Moscow and Otkritie Arena. This occurred after numerous changes at
4902-655: The Earth , the Moon , Mars , and meteorites , but were long unable to obtain reference values for the isotope ratios in the Sun , believed to be the same as those of the primordial solar nebula . Analysis of a silicon wafer exposed to the solar wind in space and returned by the crashed Genesis spacecraft has shown that the Sun has a higher proportion of oxygen-16 than does the Earth. The measurement implies that an unknown process depleted oxygen-16 from
5016-463: The Earth's crust in the form of various oxides such as water , carbon dioxide , iron oxides and silicates . All eukaryotic organisms , including plants , animals , fungi , algae and most protists , need oxygen for cellular respiration , which extracts chemical energy by the reaction of oxygen with organic molecules derived from food and releases carbon dioxide as a waste product. In aquatic animals , dissolved oxygen in water
5130-556: The Greek roots ὀξύς (oxys) ( acid , literally 'sharp', from the taste of acids) and -γενής (-genēs) (producer, literally begetter), because he mistakenly believed that oxygen was a constituent of all acids. Chemists (such as Sir Humphry Davy in 1812) eventually determined that Lavoisier was wrong in this regard, but by then the name was too well established. Oxygen entered the English language despite opposition by English scientists and
5244-790: The Hillsborough disaster in 1989, where 97 Liverpool fans were crushed to death in an overcrowded terrace, 95 of the 97 from compressive asphyxia, 93 dying directly from it and 3 others from related complications; the 2021 Meron crowd crush where 45 died; the Astroworld Festival crowd crush in 2021, where 10 died; and the Seoul Halloween crowd crush in 2022, where at least 159 died during Halloween celebrations. In confined spaces, people are forced to push against each other; evidence from bent steel railings in several fatal crowd accidents has shown horizontal forces over 4500 N (equivalent to
5358-571: The UEFA Cup Winner's Cup . In the early days of Soviet football, government agencies such as the police, army, and railroads created their own clubs . Many statesmen saw in the wins of their teams the superiority over the opponents patronising other teams. Almost all the teams had such kind of patrons; Dynamo Moscow aligned with the Militsiya , CSKA Moscow with the Red Army , and Spartak, created by
5472-581: The Ukrainian Premier League , both teams must qualify for UEFA tournaments to meet each other. Since the mid-2000s the supporters of Spartak maintain brotherhood relations with Crvena Zvezda (Red Star Belgrade) and Olympiacos ultras – a friendship based on common Orthodox faith and same club colours. Also fans of Spartak have generally friendly relationships with Torpedo Moscow supporters, and of supporters of Polish club Lech Poznań . Until 2014, Spartak had never had its own stadium, with
5586-464: The knee-on-stomach position ; or techniques such as leg scissors (also referred to as body scissors and in budō referred to as do-jime ; 胴絞, "trunk strangle" or "body triangle") where a participant wraps his or her legs around the opponent's midsection and squeezes them together. Pressing is a form of torture or execution using compressive asphyxia. Perinatal asphyxia is the medical condition resulting from deprivation of oxygen ( hypoxia ) to
5700-470: The shells and skeletons of marine organisms to determine the climate millions of years ago (see oxygen isotope ratio cycle ). Seawater molecules that contain the lighter isotope , oxygen-16, evaporate at a slightly faster rate than water molecules containing the 12% heavier oxygen-18, and this disparity increases at lower temperatures. During periods of lower global temperatures, snow and rain from that evaporated water tends to be higher in oxygen-16, and
5814-430: The thermal decomposition of potassium nitrate . In Bugaj's view, the isolation of oxygen and the proper association of the substance to that part of air which is required for life, provides sufficient evidence for the discovery of oxygen by Sendivogius. This discovery of Sendivogius was however frequently denied by the generations of scientists and chemists which succeeded him. It is also commonly claimed that oxygen
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#17328686510245928-553: The 17th and the 18th century but none of them recognized it as a chemical element . This may have been in part due to the prevalence of the philosophy of combustion and corrosion called the phlogiston theory , which was then the favored explanation of those processes. Established in 1667 by the German alchemist J. J. Becher , and modified by the chemist Georg Ernst Stahl by 1731, phlogiston theory stated that all combustible materials were made of two parts. One part, called phlogiston,
6042-481: The 1920s, the team was renamed several times, from "Moscow Sports Club" to "Red Presnya" (after the name of one of the districts of Moscow) to "Pishcheviki" ("Food industry workers") to "Promkooperatsiya" ("Industrial cooperation") and finally to "Spartak Moscow" in 1935, and for many years the team was under patronage of one of the Moscow food factories that dealt with meat products. One of the most favourite slogans of both
6156-463: The 2012–13 season, Spartak qualified for the 2012–13 UEFA Champions League group stage and finished last after disappointing performances against FC Barcelona , Celtic and Benfica . In the league, Spartak finished in fourth place while in the cup it was eliminated in the round of 16 by FC Rostov 0–0 (3–5 p ) , completing a disappointing season. Since 2013, the club have added another three stars as rules allowed teams to include titles won during
6270-531: The 2s electrons, after sequential filling of the low σ and σ orbitals; σ overlap of the two atomic 2p orbitals that lie along the O–O molecular axis and π overlap of two pairs of atomic 2p orbitals perpendicular to the O–O molecular axis, and then cancellation of contributions from the remaining two 2p electrons after their partial filling of the π orbitals. This combination of cancellations and σ and π overlaps results in dioxygen's double-bond character and reactivity, and
6384-409: The 7th round of the championship. Note: Flags indicate national team as defined under FIFA eligibility rules . Players may hold more than one non-FIFA nationality. Note: Flags indicate national team as defined under FIFA eligibility rules . Players may hold more than one non-FIFA nationality. Had international caps for their respective countries, or held any club record. Players whose name
6498-527: The American scientist Robert H. Goddard became the first person to develop a rocket engine that burned liquid fuel; the engine used gasoline for fuel and liquid oxygen as the oxidizer . Goddard successfully flew a small liquid-fueled rocket 56 m at 97 km/h on March 16, 1926, in Auburn, Massachusetts , US. In academic laboratories, oxygen can be prepared by heating together potassium chlorate mixed with
6612-478: The Philosopher's Stone drawn from the source of nature and manual experience"] (1604) described a substance contained in air, referring to it as 'cibus vitae' (food of life, ) and according to Polish historian Roman Bugaj, this substance is identical with oxygen. Sendivogius, during his experiments performed between 1598 and 1604, properly recognized that the substance is equivalent to the gaseous byproduct released by
6726-500: The RGO Sokol began to play football in the summer of 1897; the professional football section was founded in the spring of 1909. On 1 August 1920, the football team began to officially act under the name MCS, or Moscow Sports Club. In 1923, the MCS, later named Krasnaya Presnya (Red Presnya), was formed by Ivan Artemyev and involved Nikolai Starostin , especially in its football team. Presnya
6840-546: The Soviet era. The next 3 seasons (2013–14, 2014–15, 2015–16) were somewhat similar as Spartak finished 6th, 6th and 5th accordingly while the club did not qualify for European Competitions. By the beginning of the 2016–17 season, under ex- Juventus manager Massimo Carrera , Spartak had acquired a squad consisting of foreign talents such as Quincy Promes , Fernando , Zé Luís , Lorenzo Melgarejo and Russians such as Denis Glushakov , Roman Zobnin and Ilya Kutepov . Spartak won
6954-438: The Sun's disk of protoplanetary material prior to the coalescence of dust grains that formed the Earth. Oxygen presents two spectrophotometric absorption bands peaking at the wavelengths 687 and 760 nm . Some remote sensing scientists have proposed using the measurement of the radiance coming from vegetation canopies in those bands to characterize plant health status from a satellite platform. This approach exploits
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#17328686510247068-497: The aim of returning the team to the top of the Russian Premier League. Spartak has been entitled to place a golden star on its badge since 2003 to commemorate winning five Russian championships in 1992, 1993, 1994, 1996 and 1997. They have won the championship another four times since 1997. In 2004, Leonid Fedun became the club's President and second-largest shareholder behind his business partner Vagit Alekperov . In
7182-493: The atmosphere. In the present equilibrium, production and consumption occur at the same rate. Free oxygen also occurs in solution in the world's water bodies. The increased solubility of O 2 at lower temperatures (see Physical properties ) has important implications for ocean life, as polar oceans support a much higher density of life due to their higher oxygen content. Water polluted with plant nutrients such as nitrates or phosphates may stimulate growth of algae by
7296-421: The board of directors of FC Spartak. Lukoil's top managers Pavel Zhdanov, Ivan Maslyaev, and Yevgeny Khavkin joined the board of directors, as did Spartak's general director Yevgeny Melezhikov (left the club in the summer of 2023), academy president Sergei Rodionov , as well as independent directors Oleg Malyshev and Yusuf Alekperov. Englishman Paul Ashworth was appointed sporting director. In December 2023, it
7410-412: The bond order from three to two. Because of its unpaired electrons, triplet oxygen reacts only slowly with most organic molecules, which have paired electron spins; this prevents spontaneous combustion. In the triplet form, O 2 molecules are paramagnetic . That is, they impart magnetic character to oxygen when it is in the presence of a magnetic field, because of the spin magnetic moments of
7524-539: The club and member of the board of directors. Under his leadership of more than 18 years, he left behind a mixed legacy. The club had won only a single Russian league, cup and supercup. Second place in the league was achieved six times, and four times the club head reached the group stage of the Champions League. A stadium solely for the use of the club was built for the first time. On September 26, 2022 Alexander Matytsyn, first vice president of Lukoil, became chairman of
7638-407: The club as a result of conflict with Romantsev. Later, Romantsev sold his stock to oil magnate Andrei Chervichenko, who in 2003 became the club president. The two were soon embroiled in a row that would continue until Romantsev was sacked in 2003 with the club suffering several sub-par seasons until Chervichenko finally sold his stock in 2004. The new ownership made a number of front office changes with
7752-635: The club moved to the 13,000 seat Tomsky Stadium , known as Pishcheviki. The team changed sponsors repeatedly over the following years as it competed with Dinamo Moscow, whose 35,000 seat Dynamo Stadium lay close by. As a high-profile sportsman, Starostin came into close contact with Alexander Kosarev, secretary of the Komsomol (Communist Union of Youth) who already had a strong influence on sport and wanted to extend it. In November 1934, with funding from Promkooperatsiia, Kosarev employed Starostin and his brothers to develop his team to make it more powerful. Again
7866-516: The club's history began when the Soviet Union collapsed and its championship ceased to exist. In the newly created Russian league, Spartak, led by coach and president Oleg Romantsev , dominated and won all but one title between 1992 and 2001. Season after season the team also represented Russia in the Champions League . Problems began in the new century, however. Several charismatic players ( Ilya Tsymbalar and Andrey Tikhonov among others) left
7980-416: The club, such as the appointment of Spanish specialist Guillermo Abascal as manager, his assistants Carlos Maria Valle Moreno and Vladimir Slišković , physical training coaches Fernando Perez Lopez and Alexander Zaichenko, and goalkeeper coach Vasily Kuznetsov . At 33 years of age, Abascal became the youngest manager in the club's history. It was also reported that Leonid Fedun has resigned as President of
8094-444: The diatomic elemental molecules in those gases. The first commercial method of producing oxygen was chemical, the so-called Brin process involving a reversible reaction of barium oxide . It was invented in 1852 and commercialized in 1884, but was displaced by newer methods in early 20th century. By the late 19th century scientists realized that air could be liquefied and its components isolated by compressing and cooling it. Using
8208-466: The electron spins are paired. It is much more reactive with common organic molecules than is normal (triplet) molecular oxygen. In nature, singlet oxygen is commonly formed from water during photosynthesis, using the energy of sunlight. It is also produced in the troposphere by the photolysis of ozone by light of short wavelength and by the immune system as a source of active oxygen. Carotenoids in photosynthetic organisms (and possibly animals) play
8322-592: The exchange of oxygen and carbon dioxide in the body. Similar broad definitions of mechanical asphyxia have occurred in Saukko and Knight's 2004 book on asphyxia, and Dolinak and Matshes' 2005 book on forensic pathology. According to Shkrum and Ramsay, mechanical asphyxia encompasses smothering, choking, positional asphyxia, traumatic asphyxia, wedging, strangulation and drowning. Sauvageau and Boghossian propose in 2010 that mechanical asphyxia should be officially defined as caused by "restriction of respiratory movements, either by
8436-579: The fact that in those bands it is possible to discriminate the vegetation's reflectance from its fluorescence , which is much weaker. The measurement is technically difficult owing to the low signal-to-noise ratio and the physical structure of vegetation; but it has been proposed as a possible method of monitoring the carbon cycle from satellites on a global scale. FC Spartak Moscow FC Spartak Moscow ( Russian : Футбольный клуб «Спартак» Москва , romanized : Futbolʹnyy klub «Spartak» Moskva , pronounced [spɐrˈtak mɐˈskva] )
8550-563: The fact that the Englishman Priestley had first isolated the gas and written about it. This is partly due to a poem praising the gas titled "Oxygen" in the popular book The Botanic Garden (1791) by Erasmus Darwin , grandfather of Charles Darwin . John Dalton 's original atomic hypothesis presumed that all elements were monatomic and that the atoms in compounds would normally have the simplest atomic ratios with respect to one another. For example, Dalton assumed that water's formula
8664-551: The fans and players is, "Who are we? We're The Meat!" ( Russian : "Кто мы ? Мясо!", "Kto my? Myaso!") FC Spartak Moscow's main colour is red. In 2014, Nike unveiled kit inspired by the club's new home. At present, Spartak's archrival is CSKA Moscow , although this is a relatively recent rivalry that has only emerged after the collapse of the USSR. Seven of ten matches with the largest audience in Russian Premier League (including top three) were Spartak-CSKA derbies . Historically,
8778-399: The first known experiments on the relationship between combustion and air was conducted by the 2nd century BCE Greek writer on mechanics, Philo of Byzantium . In his work Pneumatica , Philo observed that inverting a vessel over a burning candle and surrounding the vessel's neck with water resulted in some water rising into the neck. Philo incorrectly surmised that parts of the air in
8892-511: The first stone took place on 2 June 2007. In February 2013, it was announced that as a result of a sponsorship deal with Otkritie FC Bank ("Discovery"), the stadium will be called Otkritie Arena for 6 years. The opening match at the new stadium took place on 5 September 2014, when Spartak drew with the Serbian side Red Star Belgrade (1-1). The first competitive match took place on 14 September 2014, in which Spartak defeated Torpedo Moscow 3–1 in
9006-452: The head coach. He had made his name playing for Spartak's main rivals, Dynamo Moscow ). He introduced several young players, including Rinat Dasayev and Georgi Yartsev . Spartak returned the following season and won the title in 1979, beating Dynamo Kyiv . On 20 October 1982, disaster struck during the UEFA Cup match between Spartak and Dutch club HFC Haarlem . Sixty-six people died in
9120-552: The heavy sleeping adult may move on top of the infant, causing compression asphyxia. In fatal crowd disasters, compressive asphyxia from being crushed against the crowd causes all or nearly all deaths, rather than blunt trauma from trampling. This is what occurred at the Ibrox disaster in 1971, where 66 Rangers fans died; the 1979 The Who concert disaster where 11 died; the Luzhniki disaster in 1982, when 66 FC Spartak Moscow fans died;
9234-399: The idea; instead, it was based on observations of what happens when something burns, that most common objects appear to become lighter and seem to lose something in the process. Polish alchemist , philosopher , and physician Michael Sendivogius (Michał Sędziwój) in his work De Lapide Philosophorum Tractatus duodecim e naturae fonte et manuali experientia depromti ["Twelve Treatises on
9348-499: The letter was found in Scheele's belongings after his death). Lavoisier conducted the first adequate quantitative experiments on oxidation and gave the first correct explanation of how combustion works. He used these and similar experiments, all started in 1774, to discredit the phlogiston theory and to prove that the substance discovered by Priestley and Scheele was a chemical element . In one experiment, Lavoisier observed that there
9462-428: The majority of these have half-lives that are less than 83 milliseconds. The most common decay mode of the isotopes lighter than O is β decay to yield nitrogen, and the most common mode for the isotopes heavier than O is beta decay to yield fluorine . Oxygen is the most abundant chemical element by mass in the Earth's biosphere , air, sea and land. Oxygen is the third most abundant chemical element in
9576-423: The most celebrated rivalry is with Dynamo Moscow , a fiercely contested matchup which is Russia's oldest derby . Matches against Lokomotiv Moscow and Zenit Saint Petersburg attract thousands of people as well, almost always resulting in packed stadia. Upon the collapse of the Soviet Union, Spartak's rivalry with Dynamo Kyiv , one of the leaders of the USSR championship, was lost. Since Dynamo Kyiv now plays in
9690-418: The most successful and biodiverse terrestrial clade , oxygen is directly conducted to the internal tissues via a deep network of airways . Many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins , nucleic acids , carbohydrates and fats , as do the major constituent inorganic compounds of animal shells, teeth, and bone. Most of the mass of living organisms
9804-494: The nitroaereus must have combined with it. He also thought that the lungs separate nitroaereus from air and pass it into the blood and that animal heat and muscle movement result from the reaction of nitroaereus with certain substances in the body. Accounts of these and other experiments and ideas were published in 1668 in his work Tractatus duo in the tract "De respiratione". Robert Hooke , Ole Borch , Mikhail Lomonosov , and Pierre Bayen all produced oxygen in experiments in
9918-454: The opponent, and create openings for transitions , as the opponent is forced to react to the smothering. In some cases, when performing certain routines, smothering is combined with simultaneous compressive asphyxia. One example is overlay, in which an adult accidentally rolls over onto an infant during co-sleeping , an accident that often goes unnoticed and is mistakenly thought to be sudden infant death syndrome . Other accidents involving
10032-451: The photosynthetic activities of autotrophs such as cyanobacteria , chloroplast -bearing algae and plants. A much rarer triatomic allotrope of oxygen , ozone ( O 3 ), strongly absorbs the UVB and UVC wavelengths and forms a protective ozone layer at the lower stratosphere , which shields the biosphere from ionizing ultraviolet radiation . However, ozone present at the surface
10146-578: The position of the body or by external chest compression", thus encompassing only positional asphyxia and traumatic asphyxia. If there are symptoms of mechanical asphyxia, it is necessary to call the Emergency Medical Services . In some countries, such as the US, there may also be self-acting groups of voluntary first responders who have been trained in first aid. In case of mechanical asphyxia, first aid can be provided on your own. In case of choking on
10260-455: The remainder of this article. Trioxygen ( O 3 ) is usually known as ozone and is a very reactive allotrope of oxygen that is damaging to lung tissue. Ozone is produced in the upper atmosphere when O 2 combines with atomic oxygen made by the splitting of O 2 by ultraviolet (UV) radiation. Since ozone absorbs strongly in the UV region of the spectrum , the ozone layer of
10374-403: The season's end, Spartak followed up with a successful run in the 2021–22 UEFA Europa League , now led by Rui Vitoria . Spartak topped its group, which included Napoli (which it defeated both home and away), Leicester City and Legia Warsaw . It was set to face RB Leipzig in the round of 16, but the club - along with all Russian club and national teams - was suspended from FIFA , UEFA and
10488-414: The seawater left behind tends to be higher in oxygen-18. Marine organisms then incorporate more oxygen-18 into their skeletons and shells than they would in a warmer climate. Paleoclimatologists also directly measure this ratio in the water molecules of ice core samples as old as hundreds of thousands of years. Planetary geologists have measured the relative quantities of oxygen isotopes in samples from
10602-625: The state authorities. Elder brother Nikolai Starostin wrote in his books that he had survived in the State Prison System due to his participation in football and with Spartak (after the political rehabilitation , in 1954, he would later return to the team as the squad's manager). In 1935, Starostin proposed the name Spartak . It was inspired by the Italian novel Spartaco , written by Raffaello Giovagnoli , and means Spartacus ("Spartak" in Russian),
10716-415: The team changed its name, this time to "Spartak Moscow" (the name Spartak means " Spartacus ", a gladiator who led an uprising against Ancient Rome ). The club founders, four Starostin brothers, played a big role in the formation of the team. The Starostins played for the red-whites in the 1930s but right before World War II they were subjected to repression as the leaders of the most hated team by
10830-537: The team historically playing in various Moscow stadia throughout its history, even once playing an exhibition match in Red Square . The team played home games at various Moscow stadiums – especially at the Locomotiv and Luzhniki stadiums. After the purchase of the club by Andrei Chervichenko in the early 2000s, several statements were made about the speedy construction of the stadium, but construction did not begin. After
10944-440: The universe after hydrogen and helium . At standard temperature and pressure , two oxygen atoms will bind covalently to form dioxygen , a colorless and odorless diatomic gas with the chemical formula O 2 . Dioxygen gas currently constitutes 20.95% molar fraction of the Earth's atmosphere , though this has changed considerably over long periods of time in Earth's history . Oxygen makes up almost half of
11058-486: The universe, after hydrogen and helium. About 0.9% of the Sun 's mass is oxygen. Oxygen constitutes 49.2% of the Earth's crust by mass as part of oxide compounds such as silicon dioxide and is the most abundant element by mass in the Earth's crust . It is also the major component of the world's oceans (88.8% by mass). Oxygen gas is the second most common component of the Earth's atmosphere , taking up 20.8% of its volume and 23.1% of its mass (some 10 tonnes). Earth
11172-401: The unpaired electrons in the molecule, and the negative exchange energy between neighboring O 2 molecules. Liquid oxygen is so magnetic that, in laboratory demonstrations, a bridge of liquid oxygen may be supported against its own weight between the poles of a powerful magnet. Singlet oxygen is a name given to several higher-energy species of molecular O 2 in which all
11286-435: The upper atmosphere functions as a protective radiation shield for the planet. Near the Earth's surface, it is a pollutant formed as a by-product of automobile exhaust . At low earth orbit altitudes, sufficient atomic oxygen is present to cause corrosion of spacecraft . The metastable molecule tetraoxygen ( O 4 ) was discovered in 2001, and was assumed to exist in one of the six phases of solid oxygen . It
11400-413: The vehicle, or following loss of consciousness to be followed by death while in a coma, having presented with anoxic brain damage. The asphyxia can be caused by facial compression, neck compression, or chest compression. This occurs mostly during restraint and handcuffing situations by law enforcement, including psychiatric incidents. The weight of the restraint(s) doing the compression may contribute to what
11514-451: The vessel were converted into the classical element fire and thus were able to escape through pores in the glass. Many centuries later Leonardo da Vinci built on Philo's work by observing that a portion of air is consumed during combustion and respiration . In the late 17th century, Robert Boyle proved that air is necessary for combustion. English chemist John Mayow (1641–1679) refined this work by showing that fire requires only
11628-428: Was HO, leading to the conclusion that the atomic mass of oxygen was 8 times that of hydrogen, instead of the modern value of about 16. In 1805, Joseph Louis Gay-Lussac and Alexander von Humboldt showed that water is formed of two volumes of hydrogen and one volume of oxygen; and by 1811 Amedeo Avogadro had arrived at the correct interpretation of water's composition, based on what is now called Avogadro's law and
11742-406: Was announced that the club was reviving a second team, closed in 2022 due to lack of funding. It will be entered in the second league. As of 22 September 2023, Source: [1] Notes The team is usually called "red-and-whites," but among the fans "The Meat" ( Russian : "Мясо" , "Myaso") is a very popular nickname. The origins of the nickname belong to the days of the foundation of the club; in
11856-408: Was first discovered by Swedish pharmacist Carl Wilhelm Scheele . He had produced oxygen gas by heating mercuric oxide (HgO) and various nitrates in 1771–72. Scheele called the gas "fire air" because it was then the only known agent to support combustion. He wrote an account of this discovery in a manuscript titled Treatise on Air and Fire , which he sent to his publisher in 1775. That document
11970-451: Was given off when the substance containing it was burned, while the dephlogisticated part was thought to be its true form, or calx . Highly combustible materials that leave little residue , such as wood or coal, were thought to be made mostly of phlogiston; non-combustible substances that corrode, such as iron, contained very little. Air did not play a role in phlogiston theory, nor were any initial quantitative experiments conducted to test
12084-491: Was independently developed in 1895 by German engineer Carl von Linde and British engineer William Hampson . Both men lowered the temperature of air until it liquefied and then distilled the component gases by boiling them off one at a time and capturing them separately. Later, in 1901, oxyacetylene welding was demonstrated for the first time by burning a mixture of acetylene and compressed O 2 . This method of welding and cutting metal later became common. In 1923,
12198-445: Was no overall increase in weight when tin and air were heated in a closed container. He noted that air rushed in when he opened the container, which indicated that part of the trapped air had been consumed. He also noted that the tin had increased in weight and that increase was the same as the weight of the air that rushed back in. This and other experiments on combustion were documented in his book Sur la combustion en général , which
12312-462: Was not sensibly different from that of common air , but I fancied that my breast felt peculiarly light and easy for some time afterwards." Priestley published his findings in 1775 in a paper titled "An Account of Further Discoveries in Air", which was included in the second volume of his book titled Experiments and Observations on Different Kinds of Air . Because he published his findings first, Priestley
12426-408: Was proven in 2006 that this phase, created by pressurizing O 2 to 20 GPa , is in fact a rhombohedral O 8 cluster . This cluster has the potential to be a much more powerful oxidizer than either O 2 or O 3 and may therefore be used in rocket fuel . A metallic phase was discovered in 1990 when solid oxygen is subjected to a pressure of above 96 GPa and it
12540-499: Was published in 1777. In the meantime, on August 1, 1774, an experiment conducted by the British clergyman Joseph Priestley focused sunlight on mercuric oxide contained in a glass tube, which liberated a gas he named "dephlogisticated air". He noted that candles burned brighter in the gas and that a mouse was more active and lived longer while breathing it. After breathing the gas himself, Priestley wrote: "The feeling of it to my lungs
12654-458: Was published in 1777. In that work, he proved that air is a mixture of two gases; 'vital air', which is essential to combustion and respiration, and azote (Gk. ἄζωτον "lifeless"), which did not support either. Azote later became nitrogen in English, although it has kept the earlier name in French and several other European languages. Lavoisier renamed 'vital air' to oxygène in 1777 from
12768-420: Was shown in 1998 that at very low temperatures, this phase becomes superconducting . Oxygen dissolves more readily in water than nitrogen, and in freshwater more readily than in seawater. Water in equilibrium with air contains approximately 1 molecule of dissolved O 2 for every 2 molecules of N 2 (1:2), compared with an atmospheric ratio of approximately 1:4. The solubility of oxygen in water
12882-491: Was the captain of the national team from 1954 to 1963. In the 1960s, Spartak won two league titles, but by the mid-1960s, Spartak was no more regarded as a leading Soviet club. The club was even less successful in the 1970s and in 1976 Spartak was relegated into the lower league . The following season in 1979, fans stayed with the team despite being relegated to the lower division, keeping the stadium full. Konstantin Beskov became
12996-683: Was won by Dynamo Moscow while Spartak won its second, which was held in the same calendar year. Before World War II, Spartak earned two more titles. In 1937, Spartak won the football tournament of Workers' Olympiad at Antwerp . During the 1950s, Spartak, together with Dynamo, dominated the Soviet Top League. When the Soviet national team won gold medals at the Melbourne Olympics , it consisted largely of Spartak players. Spartak captain Igor Netto
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