• Day 82° 52% SSE 7 mph Partial cloudiness early, with scattered showers and thunderstorms during the afternoon. (th-hochzeitsfotograf.de)
  • The changing position of the sun in relation to the equator affects barometric pressure, producing a seasonal atmospheric tide. (medscape.com)
  • Aerotitis especially affects the middle ear due to failure of the eustachian tube to remain open during sudden changes in barometric pressure. (wordinfo.info)
  • Diving presents a physiological challenge in terms of external pressures on the lung and other gas spaces, and the effects that increased partial pressures of oxygen and nitrogen have on cell function. (southwales.ac.uk)
  • In their correspondence ' Why vascular siphons with sub-atmospheric pressures are physiologically impossible in sauropod dinosaurs ', Seymour and Lillywhite discuss a number of physiological problems with a siphon operating in sauropods. (biologists.com)
  • [ 2 ] It has also reportedly been associated with rapid ascent in military aircraft and with pressure changes associated with space exploration. (medscape.com)
  • The Henry law states that the solubility of a gas in a liquid is directly proportional to the pressure exerted upon the gas and liquid. (medscape.com)
  • Studies of the effects of chronic hypoxemia can be performed in the laboratory by decreasing either the concentration of inspired oxygen or the barometric pressure in a hypobaric chamber. (medscape.com)
  • The combination of increased pressure (3 ATA) and increased oxygen concentration (100%) dissolves enough oxygen in the plasma alone to sustain life in a resting state. (tier1tc.com)
  • The raw signal is converted to oxygen concentration [µM or nmol/mL] or partial oxygen pressure [kPa] by calibration of the POS . (oroboros.at)
  • Barotitis is an ottic barotrauma caused by abrupt atmospheric pressure change, such as may affect the crew and passengers of aircraft during flight, particularly during descent. (wordinfo.info)
  • The vapor pressure also depends on intermolecular forces between molecules in both phases. (hvacbuster.com)
  • When so many ODs sound so much alike, it all depends on your amp, your guitar, your other pedals and setup, not to mention your mood and probably things like barometric pressure and planetary alignment. (noihoicongnghiep.net)
  • Falling barometric pressure and hot, dry, seasonal winds, such as the Alpine fohn and the Rocky Mountain chinook, for example, pack the air with an excess of positive ions. (rocacruz.com)
  • Humans have shown an ability to adapt for short periods to a barometric pressure one third that of sea level on Mount Everest without supplemental oxygen. (medscape.com)
  • Furthermore, because most flight data recorders retain only data from the most recent 30 min of operation, current recording practices do not permit assessing variations in cabin pressure throughout a flight or, therefore, identifying periods during which partial pressure of oxygen (PO 2 ) is low. (nationalacademies.org)
  • Therefore, infants and children with pulmonary disease may have lower partial pressure of arterial oxygen (PaO 2 ). (medscape.com)
  • The lower oxygen stimulates chemoreceptors that initiate an increase in breathing, resulting in a lowering of the partial pressure of CO2 and hence more alkaline blood pH. (alanarnette.com)
  • During HBOT treatments, barometric pressures are usually limited to 3 ATA or lower. (tier1tc.com)
  • The French mathematician, Blaise Pascal, realised that if air had weight, then presumably air pressure would be lower at higher altitudes - the less air there is above your head, the less of it there is weighing down upon you. (dalvey.com)
  • As predicted, the air pressure was lower the further up he went. (dalvey.com)
  • In erythrocythemia, DLCO is increased because hematocrit is increased and because of the vascular recruitment that occurs with increased pulmonary pressures due to increased viscosity. (msdmanuals.com)
  • At sea level, the partial pressure of oxygen available in the environment is equal to 0.21 times the barometric minus the water vapor pressure (ie, (760 - 47 mm Hg)* 0.21, or 149 mm Hg). (medscape.com)
  • S O 2 (aq) in pure water is 10.56 µM/kPa at 37 °C and 12.56 µM/kPa at 25 °C. At standard barometric pressure (100 kPa), c O 2 * (aq) is 207.3 µM at 37 °C (19.6 kPa partial oxygen pressure) or 254.7 µM at 25 °C (20.3 kPa partial oxygen pressure). (mitoeagle.org)
  • Similarly partial obstruction of sampling lines with water can result in distorted waveforms. (capnography.com)
  • Torricelli realised that it was the downward pressure of many kilometres of air above the water in the open pool that was preventing the column of water in the tube from fully descending into the pool, and recognised that this first barometer was actually a kind of balance: equalising the respective pressures of the air above the open pool, and the column of water in the tube. (dalvey.com)
  • at 3.048 m above sea level, barometric pressure is 523 mmHg, and at 15.240 m, the barometric pressure is 87 mmHg. (wikipedia.org)
  • At sea level (barometric pressure, 760 mm Hg), the PO2 of ambient air is 159 mm Hg (ie, 760 mm Hg × 0.2093). (medscape.com)
  • Humans can permanently live at 5100 m (16,700 ft), where the barometric pressure is approximately one half that of sea level. (medscape.com)
  • With pure oxygen in the suit, that's the same partial pressure O2 as Earth sea level, yet habitat partial pressure is more than many Earth cities, and with suit O2 at 10% more than habitat, the suit could endure 10% pressure loss with no danger to astronauts. (newmars.com)
  • As a result of the wide variety of presentations, these disorders must be considered in any patient who has recently been exposed to a significant change in barometric pressure. (medscape.com)
  • When an aviator is submitted to positive g-force in acceleration, the blood will move to the inferior part of the body, meaning that if the g-force is elevated, all the blood pressure in veins will increase. (wikipedia.org)
  • The "aneroid" barometer relies on an "aneroid cell": a small metal chamber containing a partial vacuum. (dalvey.com)
  • Omission of standard narrow 2 m long sampling tube (at the time of calibration) will result in the absence of a large pressure drop across the ends of the tube, and a measuring error does becomes inevitable during subsequent clinical use. (capnography.com)
  • Other sensors by Lufft will measure solar radiation and any partial combination of the full list of weather parameters as part of an all in one sensor. (windpowerengineering.com)
  • What's known as an "atmospheric river" is pumping continuous moisture over the region, said Ryan Kittell, a meteorologist with the weather service's Oxnard station, and could lead to a "bomb cyclone," a heavy, moisture-laden weather pattern characterized by a quick, significant drop in barometric pressure. (latimes.com)
  • Barotrauma is an injury caused by a difference in pressure between a gas inside, in contact with, or outside the body and the pressure of the surrounding gas or fluid. (medscape.com)