query: where does most of earths oxygen come from today

pos: Geological history of oxygen of the Great Oxygenation Event. This mass oxygenation of the atmosphere resulted in rapid buildup of free oxygen. At current rates of primary production, today's concentration of oxygen could be produced by photosynthetic organisms in 2,000 years. In the absence of plants, the rate of oxygen production by photosynthesis was slower in the Precambrian, and the concentrations of O attained were less than 10% of today's and probably fluctuated greatly; oxygen may even have disappeared from the atmosphere again around 1.9 billion years ago. These fluctuations in oxygen concentration had little direct effect on life, with mass extinctions not observed

pos: Atmospheric methane and carbon dioxide into methane and water. Oxygen did not become a major part of the atmosphere until photosynthetic organisms evolved later in Earth's history. With no oxygen, methane stayed in the atmosphere longer and at higher concentrations than it does today. The known sources of methane are predominantly located near the Earth's surface. In combination with vertical atmospheric motions and methane's relatively long lifetime, methane is considered to be a well-mixed gas. In other words, the concentration of methane is taken to be constant with respect to height within the troposphere. The dominant sink of methane in the troposphere

neg: Working terrier dog is on the large size, and as a consequence it is most useful in large pipes, artificial earths, or when it has been bred down to a 12–13 inch size. From the southern part of England have come the white fox-working dogs whose origins are the same as those of the Jack Russell Terrier. Kennel Club breeds derived from these mainly-white coated dogs include the Smooth Fox Terrier, the Wire Fox Terrier, the Sealyham Terrier and (most recently), the Parson Russell Terrier and Russell Terrier. None of these Kennel Club breeds are commonly found working in the field today.

neg: Anchoa mitchilli species is distributed in the Atlantic Ocean and Gulf of Mexico along the eastern coasts of North America from Maine to Yucatán. It does not occur in the West Indies. It is well known in the Chesapeake Bay, where it is the most abundant fish. It occurs in a wide range of water temperatures and salinities, including some hypersaline environments. It does not tolerate low-oxygen waters and easily asphyxiates when deprived of oxygen. This fish spends most of its time cruising the water column. It can also be found over bare substrates at the ocean floor and in tide pools

neg: Magnetism sign) of these two particles, and complementary to a "symmetric" spin function (i.e. with the + sign, one of the so-called "triplet functions"). Thus, now the spins would be "parallel" (ferromagnetism in a solid, paramagnetism in two-atomic gases). The last-mentioned tendency dominates in the metals iron, cobalt and nickel, and in some rare earths, which are "ferromagnetic". Most of the other metals, where the first-mentioned tendency dominates, are "nonmagnetic" (e.g. sodium, aluminium, and magnesium) or "antiferromagnetic" (e.g. manganese). Diatomic gases are also almost exclusively diamagnetic, and not paramagnetic. However, the oxygen molecule, because of the involvement of π-orbitals, is an

neg: Fuel cell total efficiency can reach 80–90% at the unit, but does not consider production and distribution losses. CHP units are being developed today for the European home market. Professor Jeremy P. Meyers, in the Electrochemical Society journal "Interface" in 2008, wrote, "While fuel cells are efficient relative to combustion engines, they are not as efficient as batteries, due primarily to the inefficiency of the oxygen reduction reaction (and ... the oxygen evolution reaction, should the hydrogen be formed by electrolysis of water)... [T]hey make the most sense for operation disconnected from the grid, or when fuel can be provided continuously. For

neg: Black powder in gas pipelines the sulfide will form and reside in the pipe in the absence of oxygen, but will convert to iron oxides in the presence of oxygen. The oxygen does not have to be free oxygen, but can come from the breakdown of other compounds containing oxygen atoms. The majority of the black powder composition is ferrous or magnetic in nature. Other sources of black powder are from mill scale from the pipe manufacturing process through high temperature oxidation of steel and flash rust created when the pipe is hydro tested. Microbes found in piping and geologic structures are known to produce

neg: Lithium peroxide and density functional theory. The solid features an eclipsed "ethane-like" LiO subunits with an O-O distance of around 1.5 Å. It is used in air purifiers where weight is important, e.g., spacecraft to absorb carbon dioxide and release oxygen in the reaction: It absorbs more CO than does the same weight of lithium hydroxide and offers the bonus of releasing oxygen. Furthermore, unlike most other alkali metal peroxides, it is not hygroscopic. The reversible lithium peroxide reaction is the basis for a prototype lithium–air battery. Using oxygen from the atmosphere allows the battery to eliminate storage of oxygen for its

neg: Ozone and 160 nm. Oxygen starts to absorb weakly at 240 nm in the Herzberg bands, but most of the oxygen is dissociated by absorption in the strong Schumann–Runge bands between 200 and 160 nm where ozone does not absorb. While shorter wavelength light, extending to even the X-Ray limit, is energetic enough to dissociate molecular oxygen, there is relatively little of it, and, the strong solar emission at Lyman-alpha, 121 nm, falls at a point where molecular oxygen absorption is a minimum. The process of ozone creation and destruction is called the Chapman cycle and starts with the photolysis of

neg: Pseudorinelepis genibarbis the males. The fish will, unlike most hypostomines, feed on flake from the water surface, turning upside-down to do so. It is also able to augment water-dissolved oxygen with atmospheric oxygen, but does not need to do so, having fully functional gills, so when this fish does gulp it is a useful warning that the aeration in the tank is low. Pseudorinelepis genibarbis Pseudorinelepis genibarbis is a species of armored catfish native to Brazil and Peru where it is found in the Upper Amazon basin. "Pseudorinelepis" is one of three genera contained in the tribe Rhinelepini, one of the tribes

neg: Interspiro DCSC therefore does not affect the equation) Oxygen partial pressure in the DCSC is controlled by the flow rate of feed gas through the dosage regulator and the oxygen consumption of the diver. Dump rate is equal to feed rate minus oxygen consumption for this case. The change in the fraction of oxygen formula_6 in the breathing circuit may be described by the following equation: Where: This leads to the differential equation: With solution: Which comprises a steady state and a transient term. The steady state term is sufficient for most calculations: The steady state oxygen fraction in the breathing circuit,

neg: Atomic Knight and the Atomic Knights all inhabited the same comics universe, one in which the Great Disaster had taken place (references to 1986 became less and less frequent as that date actually approached). "Crisis on Infinite Earths: Absolute Edition" had "two" Great Disaster realities: Earth-86 (where the Great Disaster was an atomic war) and Earth-295 (where the Great Disaster was natural). Since the Great Disaster on Earth-295 was natural that reality had no Atomic Knights. The entire Great Disaster concept has since been declared to be out-of-continuity in the current DC Universe, although one of the Post-52 alternate Earths (Earth-17) "does"

neg: Oxygen XML Editor an attribute containing an XPath string is a valid XPath. oXygen XML automatically assumes that documents with the .xsl and .xslt extensions are XSLT files, and it treats them accordingly. It also offers support for editing XSL-FO documents, though it does not provide visual editing features for it. Though Oxygen XML is primarily an XML editor, it does come with the ability to edit a number of non-XML textual formats. It has syntax completion for DTD, RELAX NG's compact format, XQuery, CSS and regular HTML. It also provides basic syntax highlighting support for a number of common web scripting languages

neg: Twin Earths one issue of "Science Fiction Classics" featuring "Twin Earths". Beginning in 1991, R. Susor Publications reprinted most of the daily and Sunday strips in three magazines, "Twin Earths" (eight issues), "Twin Earths Sunday Pages" (five issues), and "Twin Earths Special Edition" (one issue) "Twin Earths Special Edition" #1, R. Susor Publications, 1993. Twin Earths Twin Earths is an American science fiction comic strip written by Oskar Lebeck and drawn by Alden McWilliams that ran in Sunday and daily newspapers from 1952 until 1963. The strip was distributed by United Feature Syndicate. The daily strip began on June 16, 1952, the

neg: Blood lower pH will cause offloading of oxygen from hemoglobin, which is known as the Bohr effect. Some oxyhemoglobin loses oxygen and becomes deoxyhemoglobin. Deoxyhemoglobin binds most of the hydrogen ions as it has a much greater affinity for more hydrogen than does oxyhemoglobin. In mammals, blood is in equilibrium with lymph, which is continuously formed in tissues from blood by capillary ultrafiltration. Lymph is collected by a system of small lymphatic vessels and directed to the thoracic duct, which drains into the left subclavian vein where lymph rejoins the systemic blood circulation. Blood circulation transports heat throughout the body, and

neg: Oxy-fuel welding and cutting ventilation around the welding environment, the welders will have much less exposure to harmful chemicals from any source. The most common fuel used in welding is acetylene, which has a two-stage reaction. The primary chemical reaction involves the acetylene disassociating in the presence of oxygen to produce heat, carbon monoxide, and hydrogen gas: CH + O → 2CO + H. A secondary reaction follows where the carbon monoxide and hydrogen combine with more oxygen to produce carbon dioxide and water vapor. When the secondary reaction does not burn all of the reactants from the primary reaction, the welding process can

neg: Border line. The Kármán line is a peak point at the altitude of 62 mi (100 km) above the earths surface, setting a boundary between the earths atmosphere and outer space. Airspace regulations are set by nations and local governments within an airspace, regulations of airspace differ by country and location. An open border is the deregulation and or lack of regulation on the movement of persons between nations and jurisdictions, this does not apply to trade or movement between privately owned land areas. Most nations have open borders for travel within their nation of travel, examples of this include the

neg: Europium Divalent europium is a mild reducing agent, oxidizing in air to form Eu(III) compounds. In anaerobic, and particularly geothermal conditions, the divalent form is sufficiently stable that it tends to be incorporated into minerals of calcium and the other alkaline earths. This ion-exchange process is the basis of the "negative europium anomaly", the low europium content in many lanthanide minerals such as monazite, relative to the chondritic abundance. Bastnäsite tends to show less of a negative europium anomaly than does monazite, and hence is the major source of europium today. The development of easy methods to separate divalent europium from

neg: Oxygen bar Oxygen bar An oxygen bar is an establishment, or part of one, that sells oxygen for recreational use. Individual flavored scents may be added to enhance the experience. The flavors in an oxygen bar come from bubbling oxygen through bottles containing aromatic solutions before it reaches the nostrils: most bars use food-grade particles to produce the scent, but some bars use aroma oils. In 1776, Thomas Henry, an apothecary and Fellow of the Royal Society of England speculated tongue in cheek that Joseph Priestley’s newly discovered dephlogisticated air (now called oxygen) might become “as fashionable as French wine at the

neg: Mist (comics) history as it existed on the world of Earth-Two, prior to the consolidating of DC Comics' alternate Earths in the "Crisis on Infinite Earths" miniseries. Much of this can still be considered canon where it does not contradict later established information. June 1962 saw Earth-Two's public re-emergence of Vandal Savage. He briefly terrorized a handful of important U.S. cities and was able to attack and incapacitate various members of the retired JSA.("Flash" #137, 6.63) This brazen attack on major American cities and on the persons of a handful of retired JSAers resulted in the re-emergence and the re-formation of the

neg: Teleost in the oceans; the hadal snailfish has been seen at a depth of , and a related (unnamed) species has been seen at . The major means of respiration in teleosts, as in most other fish, is the transfer of gases over the surface of the gills as water is drawn in through the mouth and pumped out through the gills. Apart from the swim bladder, which contains a small amount of air, the body does not have oxygen reserves, and respiration needs to be continuous over the fish's life. Some teleosts exploit habitats where the oxygen availability is low,

neg: Oxygen compatibility the flow does not come into direct contact with the component. Only tested and certified oxygen compatible lubricants and sealants should be used, and in as small quantities as is reasonably practicable for effective function. Projection of excess sealant or contamination by lubricant into flow regions should be avoided. Commonly used engineering metals with a high resistance to ignition in oxygen include copper, copper alloys, and nickel-copper alloys, and these metals also do not normally propagate combustion, making them generally suitable for oxygen service. They are also available in free-cutting, castable or highly ductile alloys, and are reasonably strong, so

neg: 2,3-Bisphosphoglyceric acid positive polarity by forming salt bridges with lysine and histidine residues in the ß subunits of hemoglobin. The R state, with oxygen bound to a heme group, has a different conformation and does not allow this interaction. By itself, hemoglobin has sigmoid-like kinetics. In selectively binding to deoxyhemoglobin, 2,3-BPG stabilizes the T state conformation, making it harder for oxygen to bind hemoglobin and more likely to be released to adjacent tissues. 2,3-BPG is part of a feedback loop that can help prevent tissue hypoxia in conditions where it is most likely to occur. Conditions of low tissue oxygen concentration such

neg: Redox gradient Redox gradient A redox gradient is the biogeochemical sorting of reductants and oxidants according to redox potential, with the most reducing conditions at depth, having its origin in the depletion of oxygen and the successive depletion of reactants with depth. They form in stratified environments where oxygen does not penetrate deeper than the immediate surface environment. Examples include waterlogged soils, marine pelagic and hemipelagic sediments, and, most notably, the Black Sea. Redox gradients in marine sediments can limit the depth at which burrowing animals can dwell, as the anoxic environment of deeper sediment is unsuitable for animals to survive in.

neg: Crisis on Infinite Earths awkwardly, describing it as "a textbook definition of style over substance". Sims said it was far from the best work of Wolfman and Pérez; however, he still thought it was groundbreaking: "it's the first time in comics history that EVERYTHING was in danger". A novelization of "Crisis on Infinite Earths" was written by Wolfman and published by iBooks in 2005, with cover art by Pérez and Alex Ross. The book follows the events of the original series; most of the story is presented from Barry Allen's point of view, while parts where he is not present are told from a

neg: Charcot–Wilbrand syndrome or complete dream loss. Functional magnetic resonance imaging or functional MRI (fMRI) is the specific MRI procedure associated with measuring brain activity. It does so by detecting changes in blood flow (hemodynamic response) related to the energy utilization by the brain using a specific blood-oxygen-level-dependant contrast. Recently fMRI has come to the forefront of dream research because it does not require the use of dyes or isotopes and allows for brain blood flow and related activity to be monitored during sleep. Specifically analysis of dreaming patients have revealed increased blood flow/oxygen utilization by network consisting of the pontine tegmentum, thalamus,

neg: Supercontinent influenced by an increase in atmospheric oxygen. Supercontinent In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass. However, many earth scientists use an alternate definition, "a clustering of nearly all continents", which leaves room for interpretation and is easier to apply to Precambrian times. Supercontinents have assembled and dispersed multiple times in the geologic past (see table). According to the modern definitions, a supercontinent does not exist today. The supercontinent Pangaea is the collective name describing all of the continental landmasses when they were most recently

neg: Mercury (planet) long periods of time; it does have a tenuous surface-bounded exosphere containing hydrogen, helium, oxygen, sodium, calcium, potassium and others at a surface pressure of less than approximately 0.5 nPa (0.005 picobars). This exosphere is not stable—atoms are continuously lost and replenished from a variety of sources. Hydrogen atoms and helium atoms probably come from the solar wind, diffusing into Mercury's magnetosphere before later escaping back into space. Radioactive decay of elements within Mercury's crust is another source of helium, as well as sodium and potassium. "MESSENGER" found high proportions of calcium, helium, hydroxide, magnesium, oxygen, potassium, silicon and sodium.

neg: Anti-Monitor absorbed the entirety of the antimatter universe and traveled to the beginning of time, intending to stop the formation of the positive matter Multiverse and to create a Multiverse where antimatter prevailed. When the heroes followed him there, he began to drain the power from most of them. However, the actions of the Spectre, empowered by the sorcerers of the surviving Earths, brought the Anti-Monitor to a stalemate. The villains of said Earths, sent to stop Krona from viewing the origins of the universe, failed due to squabbling, allowing Krona to see the hands of the Anti-Monitor and the Spectre

neg: Freediving blackout the body to carbon dioxide, in which case the body may come to rely on the oxygen level in the blood to maintain respiratory drive. This is illustrated in the scenario of type II respiratory failure. However, in a normal healthy person there is no subjective awareness of low oxygen levels. An ascent blackout, or deep water blackout, is a loss of consciousness caused by cerebral hypoxia on ascending from a deep freedive or breath-hold dive, typically of ten metres or more when the swimmer does not necessarily experience an urgent need to breathe and has no other obvious medical

neg: Rare Earth hypothesis tectonics in large rocky planets and liquid water on the surface as most should generate internal heat even without the assistance of radioactive elements. Studies by Valencia and Cowan suggest that plate tectonics may be inevitable for terrestrial planets Earth sized or larger, that is, Super-Earths, which are now known to be more common in planetary systems. The hypothesis that molecular oxygen, necessary for animal life, is rare and that a Great Oxygenation Event (Rare Earth equation factor formula_12) could only have been triggered and sustained by tectonics, appears to have been invalidated by more recent discoveries. Ward and Brownlee

neg: Propane torch CO and water. The balanced equation shows to use 1 mole of propane for every 5 moles of oxygen. It is much harder to achieve complete combustion with air than with oxygen. If the propane does not receive enough oxygen, some of the carbon from the propane is left unburned. An example of incomplete combustion that uses 1 mole of propane for every 4 moles of oxygen: The extra carbon product will cause soot to form, and the less oxygen used, the more soot will form. There are other unbalanced ratios where incomplete combustion products such as carbon monoxide (CO)

neg: Precambrian body plans that date back to the Precambrian era lack distinct structures since there were no skeletal forms during this period. Skeletons did not arise until the Cambrian Era when oxygen levels increased. This is because skeletons require collagen, which uses Vitamin C as a cofactor, which requires oxygen. For more information on the rise of oxygen see the section on oxygen. The majority of fossils from this Era come from either Mistaken Point on the East Coast of Canada or the Ediacara Hills in Southern Australia. Most of the fossils are found as impressions of soft-bodied organisms in the shape of

neg: Transition from walking to running from walking to running in humans. The energetics of movement are typically measured indirectly through oxygen consumption. Most of the energy for walking is produced through the combustion of nutrients in the presence of oxygen (as opposed to anaerobic or high-intensity exercise which relies increasingly on energy that does not require oxygen for breakdown). Oxygen consumption increases when transitioning from walking to running, despite Ratings of Perceived Exertion (RPE) decreasing. Therefore people feel that they are not working as hard by switching from walking to running, even though their energy expenditure has increased. Humans would have to transition to running

neg: GURPS Alternate Earths history, such as the Confederate States of America (where the Omaha Black Sox play the Mexico City Aztecs in the World Series) and Reich-5 (where you-know-who won World War II)." Swan also noted that the book is "adaptable", saying that the material "translates to other game systems with a minimum of tweaking", and also that the book is funny: ""Alternate Earths" features rock star Jerry Lee Swaggart and time traveling Nazis". "GURPS Alternate Earths" was reviewed in "Valkyrie" #13. Reviewed in "Alarums & Excursions" #261. GURPS Alternate Earths GURPS Alternate Earths is a "GURPS" role-playing game supplement for the game's

neg: Hollinshead Hall enclosed garden is a Well house, The only structure on the site which remains standing today. The name "Hollinshead hall" is presumed to come from the Hollinshead family who are said to have built the hall at some point before the 14th century and from the Manor of Hollinshead itself, however sources to verify this are being awaited. To date the earliest record of Hollinshead hall seems to appear in 1311 (where?), Although it is probable the hall did indeed exist before then. One theory (which?) suggests that the name Hollinshead hall does not come from a family name at

neg: Antoine Lavoisier This work, titled "Méthode de nomenclature chimique" ("Method of Chemical Nomenclature", 1787), introduced a new system which was tied inextricably to Lavoisier's new oxygen theory of chemistry. The Classical elements of earth, air, fire, and water were discarded, and instead some 55 substances which could not be decomposed into simpler substances by any known chemical means were provisionally listed as elements. The elements included light; caloric (matter of heat); the principles of oxygen, hydrogen, and azote (nitrogen); carbon; sulfur; phosphorus; the yet unknown "radicals" of muriatic acid (hydrochloric acid), boric acid, and "fluoric" acid; 17 metals; 5 earths (mainly oxides

neg: Superhabitable planet periods of greatest biodiversity. So, assuming that the presence of a significant amount of oxygen in the atmosphere is essential for exoplanets to develop complex life forms, the percentage of oxygen relative to the total atmosphere appears to limit the maximum size of the planet for optimum superhabitability and ample biodiversity. Also, the atmospheric density should be higher in more massive planets, which reinforces the hypothesis that super-Earths can provide superhabitable conditions. In a biological context, older planets than Earth may have greater biodiversity, since native species have had more time to evolve, adapt and stabilize the environmental conditions to

neg: Rare-earth element REO mine production, which grade in the range of 0.05% to 0.5% REO. Another recently developed source of rare earths is electronic waste and other wastes that have significant rare-earth components. New advances in recycling technology have made extraction of rare earths from these materials more feasible, and recycling plants are currently operating in Japan, where there is an estimated 300,000 tons of rare earths stored in unused electronics. In France, the Rhodia group is setting up two factories, in La Rochelle and Saint-Fons, that will produce 200 tons of rare earths a year from used fluorescent lamps, magnets and

neg: Lampworking the 14th century. In the mid 19th century lampwork technique was extended to the production of paperweights, primarily in France, where it became a popular art form, still collected today. Lampworking differs from glassblowing in that glassblowing uses a furnace as the primary heat source, although torches are also used. Early lampworking was done in the flame of an oil lamp, with the artist blowing air into the flame through a pipe. Most artists today use torches that burn either propane or natural gas, or in some countries butane, for the fuel gas, mixed with either air or pure oxygen

neg: Oxygen–hemoglobin dissociation curve tissue hypoxia while maintaining a normal pO because carboxyhaemoglobin does not carry oxygen to the tissues. Methemoglobinaemia is a form of abnormal hemoglobin where the iron centre has been oxidised from the +2 oxidation state (the normal form) to the +3 state. This causes a leftward shift in the oxygen hemoglobin dissociation curve, as any residual heme with oxygenated ferrous iron (+2 state) is unable to unload its bound oxygen into tissues (because 3+ iron impairs hemoglobin's cooperativity), thereby increasing its affinity with oxygen. However, methemoglobin has increased rbc affinity for cyanide, and is therefore useful in the treatment of

neg: Logrosán Roman Bridge: That does not have anything of Roman. It is a question of a medieval construction. What is of interest is the place where it is. Stately houses: The people is splashed with them, they are like an indelible memory of our past social structure: landowners and workers, of to count. The majority they belong to wealthy families formerly, but today come at least. What explains the lamentable situation of ruin of many of these most beautiful houses, of artesonados and decorated roofs, stones staircases of grain, wide brokers and beautiful courts and corrals. Logrosán Logrosán () is a

neg: Experimental psychology of the water. The EEG is an instrument that can reflect the summed electrical activity of neural cell assemblies in the brain. It was originally used as an attempt to improve medical diagnoses. Later it became a key instrument to psychologists in examining brain activity and it remains a key instrument used in the field today. The fMRI is an instrument that can detect changes in blood oxygen levels over time. The increase in blood oxygen levels shows where brain activity occurs. These are rather bulky and expensive instruments which are generally found in hospitals. They are most commonly used

neg: Oxygen scavenger conditions. Though other technologies can remove more, iron is the most useful as it does not cause odor like sulfur compounds or passivate like aluminium compounds. Many other alternatives are not food safe. The moisture requirement of iron-based scavengers makes them ineffective in moisture sensitive applications. The performance of oxygen scavengers is affected by ambient temperature and relative humidity. Newer packaging technologies may use oxygen scavenging polymers to prevent accidental ingestion of oxygen scavengers. While most standard oxygen scavengers contain ferrous carbonate and a metal halide catalyst, there are several non-ferrous variants, such as ascorbate, sodium hydrogen carbonate, citrus and

neg: DC Comics Absolute Edition Editions which are a single slipcased book, this was a set of two volumes, with the separate 96 page book containing most of the supplementary material. In addition to memos, notes, sketches, and commentary by the creators, it includes some of the information from "The Official Crisis on Infinite Earths Index #1" and "The Official Crisis on Infinite Earths Crossover Index #1" but expanding the number of distinct Earths identified to 114, some of which appeared after Crisis as Elseworlds. Also some Earths that were described in those volumes (such as Alternate Earth-2 and Crossover Earth) were not included. Released

neg: Decomposition oxygen. This could be place where the body is buried in organic material and oxygen can not reach it. This process of putrefaction has a bad odor accompanied by it due to the hydrogen sulfide and organic matter containing sulfur. Embalming is the practice of delaying decomposition of human and animal remains. Embalming slows decomposition somewhat, but does not forestall it indefinitely. Embalmers typically pay great attention to parts of the body seen by mourners, such as the face and hands. The chemicals used in embalming repel most insects, and slow down bacterial putrefaction by either killing existing bacteria in

neg: Grinker myelinopathy of the neurological disorders is believed to be demyelination of the cerebral hemispheres, though there is currently no widely accepted consensus on why. The most commonly accepted theories for the cause of demyelination include hypoxia and cerebral edema due to carbon monoxide toxicity, drug overdose, or cerebral blood vessel damage, and a disruption of myelin-producing pathways. Because carbon monoxide binds to hemoglobin more efficiently than oxygen and lower systemic blood pressure brought upon by an acute anoxic episode in conjunction with carbon monoxide poisoning often leads to cerebral ischemia, a condition where the brain does not receive enough oxygen to

neg: Allotropes of oxygen Allotropes of oxygen There are several known allotropes of oxygen. The most familiar is molecular oxygen (O), present at significant levels in Earth's atmosphere and also known as dioxygen or triplet oxygen. Another is the highly reactive ozone (O). Others include: Atomic oxygen, denoted O(P) or O(3P), is very reactive, as the single atoms of oxygen tend to quickly bond with nearby molecules. On Earth's surface, it does not exist naturally for very long, but in outer space, the presence of plenty of ultraviolet radiation results in a low Earth orbit atmosphere in which 96% of the oxygen occurs in

neg: Alan Moore characters, including John Constantine, attempt to stop it and free humanity from the power of superheroes. The series would also have restored the DC Universe's multiple earths, which had been eliminated in the continuity-revising 1985 limited series "Crisis on Infinite Earths". The series was never commissioned, but copies of Moore's detailed notes have appeared on the Internet and in print despite the efforts of DC, who consider the proposal their property. Similar elements, such as the concept of hypertime, have since appeared in DC comics. The 1996 miniseries "Kingdom Come" by Mark Waid and Alex Ross, was also set amid

neg: High-altitude military parachuting in the Earth's atmosphere is low. Oxygen is required for human respiration and lack of pressure can lead to hypoxia. Also, rapid ascent in the jump aircraft without all nitrogen flushed from the bloodstream can lead to decompression sickness (also known as caisson disease or "the bends"). A typical HALO exercise will require a pre-breathing period (30–45 minutes) prior to jump where the jumper breathes 100% oxygen in order to flush nitrogen from their bloodstream. Also, a HALO jumper will employ an oxygen bottle during the jump. Danger can come from medical conditions affecting the jumper. For example, cigarette smoking,

neg: Streeter–Phelps equation the field or estimated theoretically. Background BOD or benthic oxygen demand is the diffuse source of BOD represented by the decay of organic matter that has already settled on the bottom. This will give rise to a constant diffuse input thus the change in BOD over time will be where Sedimented BOD does not directly consume oxygen and this should therefore be taken into account. This is done by introducing a rate of BOD removal combined with a rate of oxygen consumption by BOD. Giving a total rate for oxygen removal by BOD where The change in BOD over time

neg: Origin of Superman Planet". Not only does everyone know they had a child; they were there shortly after Jon was born. The "Daily Planet" crew has known Jon his entire life." Flashbacks seen in that story indicate that the origin as depicted in the New 52 and in "Superman: Secret Origin" have been hybridized, with most of the characters' pre-"Flashpoint" histories overwriting early New 52 stories. In the DC Comics Multiverse, there are several versions of Superman originating from different parallel Earths. Most of these counterparts have subtle differences in their origins. Alterations to Superman's origin are also frequently used as the premises

neg: Hyperbaric treatment schedules Use: Treatment of mild decompression sickness where relief occurs within 30 minutes at 30 msw (98 fsw) Use: Treatment of mild decompression sickness where relief does not occur within 30 minutes at 30 msw (98 fsw) Use: Treatment of severe decompression sickness where relief does not occur within 30 minutes at 30 msw (98 fsw) 100% oxygen for 30 minutes at 3.0 ATA followed by 60 minutes at 2.5 ATA. Indication: In-water recompression (IWR) or underwater oxygen treatment is the emergency treatment of decompression sickness (DCS) by sending the diver back underwater to allow the gas bubbles in the tissues,

neg: Hypoxemia limit airflow can lead to hypoxemia. In conditions where the proportion of oxygen in the air is low, or when the partial pressure of oxygen has decreased, less oxygen is present in the alveoli of the lungs. The alveolar oxygen is transferred to hemoglobin, a carrier protein inside red blood cells, with an efficiency that decreases with the partial pressure of oxygen in the air. This refers to a disruption in the ventilation/perfusion equilibrium. Oxygen entering the lungs typically diffuses across the alveolar-capillary membrane into blood. However this equilibration does not occur when the alveolus is insufficiently ventilated, and as

neg: Sabatier reaction production in Germany in 2013, and powered a fleet of 1500 Audi A3s. In ammonia production CO and CO are considered poisons to most commonly used catalysts. Methanation catalysts are added after several hydrogen producing steps to prevent carbon oxide buildup in the ammonia synthesis loop as methane does not have similar adverse effects on ammonia synthesis rates. Oxygen generators on board the International Space Station produce oxygen from water using electrolysis; the hydrogen produced was previously discarded into space. As astronauts consume oxygen, carbon dioxide is produced, which must then be removed from the air and discarded as well.

neg: Purple-K chain reaction which forms one of the four sides of the fire tetrahedron (heat + oxygen + fuel + chemical chain reaction = fire). To a much smaller degree it also has a smothering effect by excluding oxygen from the fire. "Dry chemical" extinguishers, such as Purple-K, are different from "dry powder" extinguishers that are used to fight Class D flammable metal fires. Purple-K powder has an acrid taste and odor, is free-flowing, floating on most liquids, non-abrasive, does not wet with water and is compatible with most foam concentrates. It has violet color, to distinguish it from other dry

neg: JLA: Earth 2 being on Earths where they, by the nature of the respective universes, cannot win. Brainiac anticipated this and has prepared himself to collect the energy released by the destroyed Earths, evolving into an "Nth Level Intelligence" and essentially becoming a god. Attempting to stop the collision, Superman discovers that this Brainiac is a biological organism; Superman's code against killing prevents him from harming Brainiac. Convinced now that only evil could win on the antimatter Earth, Superman and Wonder Woman refrain from trying to defeat Brainiac themselves. Flash switches the teams back to their respective Earths. Upon arrival, a vengeful Ultraman

neg: Earth Prime it appears to be the case that such Prime Earths — and sometimes the 'central universes' in which those Prime Earths exist as well — are portrayed in fiction to be vital to the existence of the other Earths). In the DC Multiverse, Earth-Prime is the true Earth from which all the other worlds within the multiverse originate, the actual reality where the readers live, DC Comics operates as a publisher, and all superheroes are fictional. However, Earth Prime became an alternate reality in its first appearance in "The Flash" #179 (May, 1968), when the Flash accidentally travels there from

neg: ULAS J1120+0641 , it is the most distant quasar yet observed. The quasar emitted the light observed on Earth today less than 770 million years after the Big Bang, about 13 billion years ago. This is 100 million years earlier than light from the most distant previously known quasar. The quasar's luminosity is estimated at solar luminosities. This energy output is generated by a supermassive black hole estimated at solar masses. While the black hole powers the quasar, the light does not come from the black hole itself. Daniel Mortlock, lead author of the paper that announced the discovery of ULAS J1120+0641,

neg: Jasper "autumn" or "porcelain". A few are designated by the place of origin such as a brown Egyptian or red African. Jasper is the main component in the silica-rich parts of banded iron formations (BIFs) which indicate low, but present, amounts of dissolved oxygen in the water such as during the Great Oxidation Event or snowball earths. The red bands, typically more competent than the hematite layers surrounding it, are made of microcrystalline red chert, also called jasper. Picture jaspers exhibit combinations of patterns {such as banding from flow or depositional patterns (from water or wind), dendritic or color variations} resulting

neg: Jahannam they will hear its fury and roaring". According to a hadith, God will ask Jahannam, if it is full and Jahannam answers: "Are there any more (to come)?" Sunnism traditionally divides "Jahannam" (analogue to heaven) into seven stages. According to one common tradition the layers of hell are: Another common tradition divides "seven earths" identified with hell, into the following: Muslim mystics, just like non-mystics, take "Jahannam" to be a place where sinners in this world will be punished, but they have provided various characterizations of the notion of the "Jahannam". Historically speaking, Sufi views develop from the fear of

neg: Oxygen saturation (medicine) assist in raising blood oxygen levels. Oxygenation occurs when oxygen molecules () enter the tissues of the body. For example, blood is oxygenated in the lungs, where oxygen molecules travel from the air and into the blood. Oxygenation is commonly used to refer to medical oxygen saturation. In medicine, oxygen saturation, commonly referred to as "sats", measures the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen. At low partial pressures of oxygen, most hemoglobin is deoxygenated. At around 90% (the value varies according to the clinical context) oxygen saturation increases according to an oxygen-hemoglobin dissociation curve and

neg: Bag valve mask also can be connected to a separate bag reservoir which can be filled with pure oxygen from a compressed oxygen source – this can increase the amount of oxygen delivered to the patient to nearly 100%. Bag-valve masks come in different sizes to fit infants, children, and adults. The face mask size may be independent of the bag size; for example, a single pediatric-sized bag might be used with different masks for multiple face sizes, or a pediatric mask might be used with an adult bag for patients with small faces. Most types of the device are disposable and therefore

neg: Photooxygenation 3 types of photooxygenation have been applied in the context of organic synthesis. In particular, type II photooxygenations have proven to be the most widely used (due to the low amount of energy required to generate singlet oxygen) and have been described as "one of the most powerful methods for the photochemical oxyfunctionalization of organic compounds." These reactions can proceed in all common solvents and with a broad range of sensitizers. Many of the applications of type II photooxygenations in organic synthesis come from Waldemar Adam's investigations into the ene-reaction of singlet oxygen with acyclic alkenes. Through the cis effect

neg: Methanosarcina with oxygen much as hemoglobin does. In "M. acetivorans", this allows for the removal of unwanted oxygen which would otherwise be toxic to this anaerobic organism. Protoglobins thus may have created a path for the evolution of later lifeforms which are dependent on oxygen. Following the Great Oxygenation Event, once there was free oxygen in Earth's atmosphere, the ability to process oxygen led to widespread radiation of life, and is one of the most fundamental stages in the evolution of Earth's lifeforms. Inspired by "M. acetivorans", a team of Penn State researchers led by James G. Ferry and Christopher House

neg: Silicon dioxide of pure SiO is about 1475 K. When molten silicon dioxide SiO is rapidly cooled, it does not crystallize, but solidifies as a glass. The structural geometry of silicon and oxygen in glass is similar to that in quartz and most other crystalline forms of silicon and oxygen with silicon surrounded by regular tetrahedra of oxygen centers. The difference between the glass and crystalline forms arises from the connectivity of the tetrahedral units: Although there is no long range periodicity in the glassy network ordering remains at length scales well beyond the SiO bond length. One example of this ordering

neg: GURPS Alternate Earths the concept of the conflict between the Infinity Patrol and Centrum across the many parallel Earths was made central to the Fourth Edition of GURPS as the default setting in the Basic Set and in the supplement "GURPS Infinite Worlds". Dixie posits an alternate history where the Southern filibuster William Walker, as President of Nicaragua, chose to protect Cornelius Vanderbilt's Accessory Transit Company rather than turn on his tycoon supporter. Without Vanderbilt's opposition to his regime in this timeline, Walker was able to conquer Cuba and make his Nicaragua the most powerful nation in Latin America. During the American Civil

neg: Quality Comics other Quality characters. Plastic Man has starred in several short-lived series starting in 1966, as well as a Saturday morning cartoon from 1979–1981. He went on to become a member of the Justice League in the 1990s. According to DC canon, the Quality characters, before the DC revamping event called "Crisis on Infinite Earths", existed on two separate realities in the DC Multiverse: Earth-Quality and Earth-X. While Earth-Quality followed much the same history as the main Earths, Earth-X was radically different from most Earths, in that World War II continued there until 1973, enabling the Freedom Fighters to continue their

neg: Rare-earth element is important in the investigation of ocean mixing and circulation. Rare-earth elements are also useful for dating rocks, as some radioactive isotopes display long half-lives. Of particular interest are the La-Ce, Sm-Nd, and Lu-Hf systems. Until 1948, most of the world's rare earths were sourced from placer sand deposits in India and Brazil. Through the 1950s, South Africa was the world's rare-earth source, from a monazite-rich reef at the Steenkampskraal mine in Western Cape province. Through the 1960s until the 1980s, the Mountain Pass rare earth mine in California was the leading producer. Today, the Indian and South African deposits

neg: Thorium very low (for example, gadolinium concentrations must be lower than one part per million by weight). Previously, repeated dissolution and recrystallisation was used to achieve high purity. Today, liquid solvent extraction procedures involving selective complexation of Th are used. For example, following alkaline digestion and the removal of phosphate, the resulting nitrato complexes of thorium, uranium, and the rare earths can be separated by extraction with tributyl phosphate in kerosene. Non-radioactivity-related uses have been in decline since the 1950s due to environmental concerns largely stemming from the radioactivity of thorium and its decay products. Most thorium applications use its dioxide

neg: Eriogonum pelinophilum is pale whitish clay with an alkaline pH that originated from Cretaceous marine sediment. This is not generally a soil type that is hospitable to most plant life; it is very fine-grained, dense, compacted, rich in calcium carbonate, and prone to shrinking and swelling. The soil does not retain water, the pH is high, it is not easy for roots to penetrate, and there is little oxygen. The clay-loving wild buckwheat grows in areas where some moisture is retained, such as swales, where snow persists a bit longer. The habitat supports a few other plants that tolerate the landscape, including

neg: Nitrox air mixtures. In "EANx", the "x" was originally the x of nitrox, but has come to indicate the percentage of oxygen in the mix and is replaced by a number when the percentage is known; for example a 40% oxygen mix is called EAN40. The two most popular blends are EAN32 and EAN36, developed by NOAA for scientific diving, and also named Nitrox I and Nitrox II, respectively, or Nitrox68/32 and Nitrox64/36. These two mixtures were first utilized to the depth and oxygen limits for scientific diving designated by NOAA at the time. The term Oxygen Enriched Air (OEN) was

neg: History of Earth from prokaryotes into eukaryotes and multicellular forms. The Proterozoic saw a couple of severe ice ages called snowball Earths. After the last Snowball Earth about 600 Ma, the evolution of life on Earth accelerated. About 580 Ma, the Ediacaran biota formed the prelude for the Cambrian Explosion. The earliest cells absorbed energy and food from the surrounding environment. They used fermentation, the breakdown of more complex compounds into less complex compounds with less energy, and used the energy so liberated to grow and reproduce. Fermentation can only occur in an "anaerobic" (oxygen-free) environment. The evolution of photosynthesis made it possible

neg: Five-Percent Nation the key to understanding humankind's relationship to the universe. The Nation does not believe in a mystery God but instead teaches that the Asiatic Blackman is God and his proper name is "Allah", the Arabic word for "God". The Nation of Gods and Earths was founded by Allah the Father after he left the Nation of Islam's Temple Number Seven in Harlem, New York (the same temple where Malcolm X was a minister from 1960 to 1963). Multiple stories exist as to why the father and the NOI parted ways: some have him refusing to give up gambling; others have

neg: Bizarro hideously disfigured Phantom Zone sorcerer, Mr. Mxyzptlk destroys Zrfff and then causes the Bizarro world to implode, killing all its inhabitants. Bizarro's severed head crashes onto Clark Kent's desk and addresses Clark Kent before his simulated life ends. Bizarro does not appear in the Crisis on Infinite Earths, apparently because of this story's events. This story directly contradicts a "World's Finest" story where it is revealed that sometime in the future, Htrae is transformed into a more normal world (egg-shaped rather than cubical) by the radiation from an exploding celestial body. The Bizarros are changed into normal people without powers,

neg: GURPS Alternate Earths II earlier book "GURPS Alternate Earths". GURPS Alternate Earths II GURPS Alternate Earths II is a supplement for the "GURPS" role-playing game. Like "GURPS Alternate Earths", "Alternate Earths II" presents a half-dozen parallel Earths with alternate histories, though one of these parallels is the world of Centrum which had previously appeared only as the mysterious and little-detailed home parallel of the antagonists from the "GURPS Time Travel" supplement to which both "Alternate Earths" titles are supplementary. The conflict between the Infinity Patrol and Centrum across the multiplicity of parallel Earths was made central to the Fourth Edition of GURPS as the

neg: Electromagnetic spectrum not blocked well by the atmosphere, but does not cause sunburn and does less biological damage. However, it is not harmless and does create oxygen radicals, mutations and skin damage. See ultraviolet for more information. After UV come X-rays, which, like the upper ranges of UV are also ionizing. However, due to their higher energies, X-rays can also interact with matter by means of the Compton effect. Hard X-rays have shorter wavelengths than soft X-rays and as they can pass through many substances with little absorption, they can be used to 'see through' objects with 'thicknesses' less than that equivalent

neg: Commission on Isotopic Abundances and Atomic Weights the international standard for decades to come. Nevertheless, when the Commission joined the IUPAC in 1920, it was asked to revert to the H=1 scale, which it rejected. With the discovery of oxygen isotopes in 1929, a situation arose where chemists based their calculations on the average atomic mass (atomic weight) of oxygen whereas physicists used the mass of the predominant isotope of oxygen, oxygen-16. This discrepancy became undesired and a unification between the chemistry and physics was necessary. In the 1957 Paris meeting the Commission put forward a proposal for a carbon-12 scale. The carbon-12 scale for atomic weights

neg: Primary production it provides a measure of ecosystem respiration. The light vessel permits both photosynthesis and respiration, so provides a measure of net photosynthesis (i.e. oxygen production via photosynthesis subtract oxygen consumption by respiration). Gross primary production is then obtained by adding oxygen consumption in the dark vessel to net oxygen production in the light vessel. The technique of using C incorporation (added as labelled NaCO) to infer primary production is most commonly used today because it is sensitive, and can be used in all ocean environments. As C is radioactive (via beta decay), it is relatively straightforward to measure its incorporation

neg: Air-cooled engine the Second World War, turbojets and jet turbine powered aircraft have come to dominate flight regimes where water cooled piston engines offered the advantage of reduced drag. Today, piston engines are mostly used in slower general aviation aircraft where the greater drag produced by air cooled engines is not a major disadvantage. Therefore, most aero engines produced today are of the air cooled variety. Today, most of the engines currently (2005) manufactured by Lycoming and Continental and used by major manufacturers of light aircraft Cirrus, Cessna and so on. Notable exceptions have included the Allison V-1710 and Rolls-Royce series of

neg: Higher Earth "Our Love is real", which was published by Image Comics. The story is set in a multiverse where many parallel Earths exist, one of which is "Higher Earth": a world that has conquered 99 other Earths from alternative timelines. It revolves around a girl named Heidi and a rogue soldier called Rex. Rex is present from the opening scene where he is falling from the sky onto an alternative Earth which has been designated a "junk" world. He is introduced as being committed to a quest of vengeance against an unspecified opponent. Heidi is introduced as a tough young woman

neg: Combustion the combustion of sulfur. NOx species appear in significant amounts above about , and more is produced at higher temperatures. The amount of NOx is also a function of oxygen excess. In most industrial applications and in fires, air is the source of oxygen (). In the air, each mole of oxygen is mixed with approximately of nitrogen. Nitrogen does not take part in combustion, but at high temperatures some nitrogen will be converted to (mostly , with much smaller amounts of ). On the other hand, when there is insufficient oxygen to completely combust the fuel, some fuel carbon

neg: Hyperoxia nervous system toxicity (CNS). An early but serious sign of CNS oxygen toxicity is a grand-mal seizure, also known as a generalized tonic-clonic seizure. This type of seizure consists of a loss of consciousness and violent muscle contractions. Signs and symptoms of oxygen toxicity are usually prevalent, but there are no standard warning signs that a seizure is about to ensue. The convulsion caused by oxygen toxicity does not lead to hypoxia, a side effect common to most seizures, because the body has an excess amount of oxygen when the convulsion begins. The seizures can lead to drowning, however, if

neg: Only in My Dreams New Jersey, the carousel in the Asbury Park casino (still in use back then), and outside the Asbury Park Convention Center where headliner concerts are still held today. Across the street from the beach, The Stone Pony, where Bruce Springsteen and Bon Jovi got their start, is still in operation. Gibson has several different changes of wardrobe throughout the video. The video shows the futility of a teenage girl attempting to get the man of her dreams to look at her, and when he does, she realizes that she was dreaming the whole event, thus causing her world to come

neg: Clark electrode permeable to molecular oxygen and allows this gas to reach the cathode, where it is electrolytically reduced. The above reaction requires a steady stream of electrons to the cathode, which depends on the rate at which oxygen can reach the electrode surface. Increasing the voltage applied (between the Pt electrode and a second Ag electrode) will increase the rate of electrocatalysis. Clark affixed an oxygen permselective membrane over the Pt electrode. This limits the diffusion rate of oxygen to the Pt electrode. Above a certain voltage, the current plateaus and increasing the potential any further does not result in a

neg: Bohr effect concentrations in the experiments, maintained throughout his life that he himself had actually been the first to demonstrate the effect. Though there is some evidence to support this, retroactively changing the name of a well-known phenomenon would be extremely impractical, so it remains known as the Bohr effect. The Bohr effect increases the efficiency of oxygen transportation through the blood. After hemoglobin binds to oxygen in the lungs due to the high oxygen concentrations, the Bohr effect facilitates its release in the tissues, particularly those tissues in most need of oxygen. When a tissue's metabolic rate increases, so does its

neg: Diving regulator 40% or less oxygen by volume, both by NOAA, which conducted extensive testing to verify this, and by most recreational diving agencies. When surface supplied equipment is used the diver does not have the option of simply taking out the DV and switching to an independent system, and gas switching may be done during a dive, including use of pure oxygen for accelerated decompression. To reduce the risk of confusion or getting the system contaminated, surface supplied systems may be required to be oxygen clean for all services except straight air diving. Regulators to be used with pure oxygen and

neg: Crisis on Infinite Earths create a single, unified DC Universe (DCU). The foundation of "Crisis on Infinite Earths" developed through a character (the Monitor) introduced in Wolfman's "The New Teen Titans" in July 1982 before the series itself started. Pérez was not the intended artist for the series, but was excited when he learned of it and called illustrating it some of the most fun he ever had. At the start of "Crisis on Infinite Earths", the Anti-Monitor (the Monitor's evil counterpart) is unleashed on the DC Multiverse and begins to destroy the various Earths that it comprises. The Monitor tries to recruit heroes

neg: Multiverse (DC Comics) comics, where it was "our" Earth. In the film, Earth-Prime is shown to be the cornerstone of all reality, and that decisions made by humankind on this world caused alternate Earths where the opposite decision was made to come into being. This world is shown to be a desolate barren wasteland of a planet, with ruins as far as the eye can see. It is unknown what exactly caused its desolation, though the Owlman reasons that it was mankind who destroyed itself. There was also an unnamed Earth that is mostly covered in ice. It was destroyed when the Owlman

neg: GURPS Alternate Earths II GURPS Alternate Earths II GURPS Alternate Earths II is a supplement for the "GURPS" role-playing game. Like "GURPS Alternate Earths", "Alternate Earths II" presents a half-dozen parallel Earths with alternate histories, though one of these parallels is the world of Centrum which had previously appeared only as the mysterious and little-detailed home parallel of the antagonists from the "GURPS Time Travel" supplement to which both "Alternate Earths" titles are supplementary. The conflict between the Infinity Patrol and Centrum across the multiplicity of parallel Earths was made central to the Fourth Edition of GURPS as the default setting in the Basic

neg: Water pollution in Brazil and processing sugarcane generates water pollution from the application of fertilizers and agrochemicals, soil erosion, cane washing, fermentation, distillation, the energy producing units installed in mills and by other minor sources of waste water. The two greatest sources of water pollution from ethanol production come from mills in the form of waste water from washing sugarcane stems prior to passing through mills, and vinasse, produced in distillation. These sources increase the biochemical oxygen demand in the waters where they are discharged which leads to the depletion of dissolved oxygen in the water and often causes anoxia. Legislation has banned the

neg: Rebreather diving a constant mass flow system is controlled by the flow rate of feed gas through the orifice and the oxygen consumption of the diver. Dump rate is equal to feed rate minus oxygen consumption for this case. The change in the fraction of oxygen formula_5 in the breathing circuit may be described by the following equation: Where: This leads to the differential equation: With solution: Which comprises a steady state and a transient term. The steady state term is sufficient for most calculations: The steady state oxygen fraction in the breathing circuit, formula_13, can be calculated from the formula: Where:

neg: Justice League: Crisis on Two Earths obsessed with the idea that nothing he does can possibly matter, as there will always be parallel worlds where he explored another option. As a result, he searches for Earth-Prime, the very first Earth from which all other universes originated, intending to use the Q.E.D. to destroy it and spark a chain reaction that will erase the entire multiverse, as it is the only action that would not result in the creation of another universe. Superwoman agrees to help him, as it would give her the power to kill everyone who's ever lived. Owlman sends Superwoman with three of her

neg: Gas in scattering media absorption spectroscopy composition of gases without destroying the package. The perhaps best example is studies of the amount of oxygen in food packages. Oxygen is naturally present in most food and food packages as it is a major component in air. However, oxygen is also one of the great causes or needs for aging of biological substances, due to its source for increase of chemical and microbiological activity. Today, methods like [Modified atmosphere] (MAP) and [Controlled atmosphere] packaging (CAP) are implemented to reduce and control the oxygen content in food packages to prolong [shelf life] and ensure safe food. To assure the

neg: Daniel P. Schrag experienced a series of extreme glaciations, called “Snowball Earths” that may have stimulated a rise in atmospheric oxygen and the proliferation of multicellular animals. He is also interested in how we can use climate events in the geologic past to understand our current climate challenges. Dan has worked on a range of issues in energy technology and policy including advanced technologies for low-carbon transportation fuel, carbon capture and storage, and risks and opportunities of shale gas. Schrag was named a MacArthur Fellow in 2000 and served from 2009 to 2016 on President Obama’s Council of Advisors for Science and Technology

neg: Paradiastole Paradiastole Paradiastole (from Greek παραδιαστολή from παρά "para" "next to, alongside", and διαστολή "diastole" "separation, distinction") is the reframing of a vice as a virtue, often with the use of euphemism, for example, "Yes, I know it does not work all the time, but that is what makes it interesting." It is often used ironically. In biblical studies, it has come to mean the repetition of disjunctive words in a list. Another example is referring to manual labour as a "workout". Perhaps the most familiar usage today comes from the software world: "It's not a bug; it's a feature!" (This

neg: Lamella (surface anatomy) come out of the primary ones and are used to further increase the contact area. Both types of lamellae are used to increase the amount of oxygen intake of the blood. Both types of lamellae contain huge amounts of capillaries and are the sites where the exchange of oxygen from the water and carbon dioxide from the blood occurs. Lamella (surface anatomy) In surface anatomy, a lamella is a thin plate-like structure, often one amongst many lamellae very close to one another, with open space between. Aside from respiratory organs, they appear in other biological roles including filter feeding and

neg: Early Today airing and to account for most West Coast sports results, but was aired without any differences on both "First Look" and "Early Today" (the segment is now conducted live-to-tape during both programs from the newsroom at NBC Studios). Some segments seen on "Early Today" are excluded from "First Look", mainly the local weather cut-in (which does not appear at all on many NBC stations that broadcast "Early Today", showing only a list of forecasts for seven randomly selected U.S. cities) and a local event barker featuring a promotion for an NBC affiliate serving the city where the event is being

neg: Rare Earths Trade Dispute earths from the mine. The rare earths dispute formed part of the storyline in Season 2 of the Netflix series House of Cards. (Real Clear World) From February to May 2015, the Thyssen Bornemisza Museum ran an art exhibition titled RARE EARTHS related to the dispute, featuring seventeen commissioned works, one for each element. Contemporary artists from The European Union, China, Mexico, Congo and Russia contributed works. Artist and political activist Ai Weiwei was among the artists who contributed. Rare Earths Trade Dispute The Rare Earths Trade Dispute was a trade dispute between China on one side and several countries

neg: Oxygen (Wild Orchid album) group opened for Cher during her "Do You Believe? Tour" alongside Cyndi Lauper for 52 dates. The group even made a guestspot on the "Beverly Hills 90210" episode "Beheading St. Valentine" where they performed "Declaration" and "Come As You Are" at the fictitious Peach Pit After Dark. Since "Oxygen" was a commercial failure, rumors were spread in 1999 about the group returning to the studio to record a new version of the album. When a remixed version of "Come As You Are" was leaked onto the internet, fans made assumptions that this version would appear on the new version of