oxygen effect - tradução para russo
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oxygen effect - tradução para russo


oxygen effect         
  •  Cell survival. This figure is illustrative of the reduction in the OER from aerobic to anoxic conditions for lower compared to higher doses, which has a bearing on the choice of dose fractionation exposures for radiotherapy of tumours.
  •  Change with ionizing density. This figure illustrates the trend in the relative radiosensitivity or OER with oxygen tension for radiations of different ionizing density or linear energy transfer (LET, keV/μm). The inhibition of clone-formation by cultured human cells was measured after exposure to alpha-particles, deuterons and 250 kVp x-rays by Barendsen et al. (1966). The range of the maximum OER for 100% oxygen (at 760 mmHg) was 2.7 for 250 kVp x-rays dropping to 1.0 for 2.5 MeV alpha-particles. In each case the OER curves shown assume a half-range OER value of 4.2 mmHg or 0.55% oxygen.
PHENOMENON IN BIOCHEMISTRY
Draft:Oxygen Effect

общая лексика

кислородный эффект

О2-эффект

oxygen poisoning         
  • Breathing air with high oxygen pressure can lead to several adverse effects.
  • alt=Closeup of a diving cylinder with a band reading "NITROX". A hand-printed label at the neck reads "MOD 28m 36% O2", with the 28 in much larger size.
  • The retina (red) is detached at the top of the eye.
  • The silicone band ([[scleral buckle]], blue) is placed around the eye. This brings the wall of the eye into contact with the detached retina, allowing the retina to re-attach.
  • Retinopathy of prematurity (ROP) in 1997 was more common in middle income countries where neonatal intensive care services were increasing; but greater awareness of the problem, leading to preventive measures, had not yet occurred.<ref name="Gilbert" />
  • alt=An unsaturated lipid reacts with a hydroxyl radical to form a lipid radical (initiation), which then reacts with di-oxygen, forming a lipid peroxyl radical. This then reacts with another unsaturated lipid, yielding a lipid peroxide and another lipid radical, which can continue the reaction (propagation).
  • alt=Photograph of a man, with receding hairline and grey moustache. He is dressed in a formal jacket and waistcoat, typical of Victorian fashion.
  • bar}} could be tolerated indefinitely.
CONDITION RESULTING FROM THE HARMFUL EFFECTS OF BREATHING MOLECULAR OXYGEN AT INCREASED PARTIAL PRESSURES
Oxygen poisoning; Oxygen intoxication; Oxygen Pete; Hyperoxemia; Central nervous system oxygen toxicity; Lorrain Smith effect; Lorrain-Smith effect; Repex

медицина

отравление кислородом (при длительном вдыхании чистого кислорода)

oxygen gas         
  • An experiment setup for preparation of oxygen in academic laboratories
  • alt=A ball structure of a molecule. Its backbone is a zig-zag chain of three carbon atoms connected in the center to an oxygen atom and on the end to 6 hydrogens.
  • alt=A drawing of a young man facing towards the viewer, but looking on the side. He wear a white curly wig, dark suit and white scarf.
  • alt=The inside of a small spaceship, charred and apparently destroyed.
  • alt=An elderly worker in a helmet is facing his side to the viewer in an industrial hall. The hall is dark but is illuminated yellow glowing splashes of a melted substance.
  • Oxygen and [[MAPP gas]] compressed-gas cylinders with regulators
  • alt=A concentric-sphere diagram, showing, from the core to the outer shell, iron, silicon, oxygen, neon, carbon, helium and hydrogen layers.
  • alt=A metal frame structure stands on the snow near a tree. A middle-aged man wearing a coat, boots, leather gloves and a cap stands by the structure and holds it with his right hand.
  • alt=A drawing of three vertical pipes connected at the bottom and filled with oxygen (left pipe), water (middle) and hydrogen (right). Anode and cathode electrodes are inserted into the left and right pipes and externally connected to a battery.
  • alt=A gray device with a label DeVILBISS LT4000 and some text on the front panel. A green plastic pipe is running from the device.
  • Liquid oxygen, temporarily suspended in a magnet owing to its paramagnetism
  • Oxygen discharge (spectrum) tube
  • [[Space-filling model]] representation of dioxygen (O<sub>2</sub>) molecule
  • aufbau]] filling of the orbitals with the 12 electrons, 6 from each O atom, beginning from the lowest-energy orbitals, and resulting in covalent double-bond character from filled orbitals (and cancellation of the contributions of the pairs of σ and σ<sup>*</sup> and π and π<sup>*</sup> orbital pairs).
  • alt=A graph showing time evolution of oxygen pressure on Earth; the pressure increases from zero to 0.2 atmospheres.
  • alt=Time evolution of oxygen-18 concentration on the scale of 500 million years showing many local peaks.
  • alt=A drawing of an elderly man sitting by a table and facing parallel to the drawing. His left arm rests on a notebook, legs crossed.
  • alt=A rusty piece of a bolt.
  • 2}} is used in [[space suit]]s.
  • alt=A diagram of photosynthesis processes, including income of water and carbon dioxide, illumination and release of oxygen. Reactions produce ATP and NADPH in a Calvin cycle with a sugar as a by product.
  • alt=Water flowing from a bottle into a glass.
  • alt=A diagram showing a male torso and listing symptoms of oxygen toxicity: Eyes&nbsp;– visual field loss, nearsightedness, cataract formation, bleeding, fibrosis; Head&nbsp;– seizures; Muscles&nbsp;– twitching; Respiratory system&nbsp;– jerky breathing, irritation, coughing, pain, shortness of breath, tracheobronchitis, acute respiratory distress syndrome.
  • alt=World map showing that the sea-surface oxygen is depleted around the equator and increases towards the poles.
CHEMICAL ELEMENT, SYMBOL O AND ATOMIC NUMBER 8
Element 8; Oxygyn; Diatomic Oxygen; Dephlogisticated air; Vital air; E948; O (element); Active oxygen; O₂; Diatomic oxide; Oxygen rings; Pure oxygen; Oxygen gas; ATC code V03AN01; ATCvet code QV03AN01; Oxygen atom; Oxygen partial pressure; Oxygen Atom; Atomic number 8; History of oxygen; Oxigen; Oxygen ion; Free oxygen; Oxygen, 8O; Nitroaereus; Properties of oxygen

общая лексика

газообразный кислород

Definição

КИСЛОРОД
(лат. Oxygenium), О, химический элемент VI группы периодической системы, атомный номер 8, атомная масса 15,9994. В свободном виде встречается в виде двух модификаций - О2 ("обычный" кислород) и О3 (озон). О2 - газ без цвета и запаха, плотность 1,42897 г/л, tпл -218,6 °С, tкип -182,96 °С. Химически самый активный (после фтора) неметалл. С большинством других элементов (водородом, галогенами, серой, многими металлами и т. д.) взаимодействует непосредственно (окисление) и, как правило, с выделением энергии. При повышении температуры скорость окисления возрастает и может начаться горение. Животные и растения получают необходимую для жизни энергию за счет биологического окисления различных веществ кислородом, поступающим в организмы при дыхании. Самый распространенный на Земле элемент; в виде соединений составляет ок. 1/2 массы земной коры; входит в состав воды (88,8% по массе) и многих тканей живых организмов (ок. 70% по массе). Свободный кислород атмосферы (20,95% по объему) образовался и сохраняется благодаря фотосинтезу. Кислород (или обогащенный им воздух) применяется в металлургии, химической промышленности, в медицине, кислородно-дыхательный аппаратах. Жидкий кислород - компонент ракетного топлива.

Wikipédia

Oxygen effect
In biochemistry, the oxygen effect refers to a tendency for increased radiosensitivity of free living cells and organisms in the presence of oxygen than in anoxic or hypoxic conditions, where the oxygen tension is less than 1% of atmospheric pressure (i.e.
Como se diz oxygen effect em Russo? Tradução de &#39oxygen effect&#39 em Russo