Sentences with phrase «oxygen conditions during»

Not exact matches

During 2016/17, environmental water holders were presented with an unexpected challenge, as many lowland rivers in the southern and central regions of the Murray - Darling Basin were subject to low oxygen conditions following widespread natural flooding.

Anemia — a condition in which you don't have enough healthy red blood cells to carry adequate oxygen to your tissues — due to blood loss during delivery

As for the increase in phosphorus content, it was caused by the phosphorus that in the summer of 2014 flowed in from the deep waters in the north of the Baltic Sea main basin and the phosphorus that was released from the Gulf of Finland's own seabed in the poor oxygen conditions and mixed with the surface layer during last winter.

Respiratory quotient, i.e. the ratio of carbon dioxide produced by the body to oxygen consumed by the body that indicates which macronutrients are being metabolized, also rose during the delayed eating condition, indicating later eating led to metabolizing fewer lipids and more carbs.

The Pt3Ni nanoframe catalysts achieved a more than 36-fold and 22-fold enhancement in two different measures of catalytic activity (mass and specific activities, respectively) for the oxygen reduction reaction in comparison to state - of - the - art carbon - supported Pt catalysts (Pt / C) during prolonged exposure to reaction conditions.

Grossman explains: «One theory that we are exploring is that under heat - stress conditions the corals eject the algal symbionts at night in order to avoid the production and accumulation of photosynthetically - derived toxic oxygen molecules during the day.

In some of the samples, the team dramatically reduced the concentrations of dissolved phosphate and oxygen to simulate conditions that might exist inside equipment used to recycle urine into water on spacecraft during long - duration flights.

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During short burst of intense exercise lasting 30 - seconds or less is when the heart muscle works hard to provide oxygen to all three muscle fiber types and this prepares and conditions the heart muscle to meet the aerobic and the anaerobic demands of life.

Calorie restriction has also been associated with a reduction in oxidative stress, perhaps due to a change in the amount of reactive oxygen species produced in the mitochondria during normal cellular respiration [4] under calorie restricted conditions.

«Hypoxia» is a condition where your body's tissues don't get enough oxygen, and while it might feel strange or stressful, limiting your breathing during a workout can strengthen your heart.

While the conditions in the geological past are useful indicators in suggesting climate and atmospheric conditions only vary within a a certain range (for example, that life has existed for over 3 billion years indicates that the oxygen level of the atmosphere has stayed between about 20 and 25 % throughout that time), I also think some skeptics are too quick to suggest the lack of correlation between temperature and CO2 during the last 550 million years falsifies the link between CO2 and warming (too many differences in conditions to allow any such a conclusion to be drawn — for example the Ordovician with high CO2 and an ice age didn't have any terrestrial life).

Matthiessen, J. & Knies, J. Dinoflagellate cyst evidence for warm interglacial conditions at the northern Barents Sea margin during marine oxygen isotope stage 5.

report that ocean sediment cores containing an «undisturbed history of the past» have been analyzed for variations in PP over timescales that include the Little Ice Age... they determined that during the LIA the ocean off Peru had «low PP, diatoms and fish,» but that «at the end of the LIA, this condition changed abruptly to the low subsurface oxygen, eutrophic upwelling ecosystem that today produces more fish than any region of the world's oceans... write that «in coastal environments, PP, diatoms and fish and their associated predators are predicted to decrease and the microbial food web to increase under global warming scenarios,» citing Ito et al..

NOx and VOC combine chemically with oxygen to form ozone during sunny, high - temperature conditions of late spring, summer and early fall.

One can only wonder how huge forest fires must have been during the Carboniferous or Late Cretaceous under higher oxygen conditions.

Cerebral palsy is a condition which is caused by oxygen deprivation or a shortage of oxygen supply to the brain during birth.

We offer the knowledge and in - depth analysis needed to determine whether your child's condition resulted from oxygen deprivation during birth.

Oxygen deprivation to a fetus can occur during a mother's pregnancy if certain conditions develop in the mother or fetus.

Ring Power Corporation, Dardanelle, AK 6/2013 to 9/2013 Welder Apprentice • Assisted in laying out, positioning and fitting various parts for welding • Adjusted valves, gauges and flames on equipment and handled compressed gas and oxygen cylinders to be used during welding procedures • Operated air arc gougers and grinders and set up hand and power tools to be used during the welding process • Examined completed pieces for conformity and quality • Cleaned and maintained work areas to ensure proper functioning and safe working conditions