Sentences with phrase «oxygen cycle of»

Not exact matches

Yet the cycle of oxygen is one we do not need to worry about.

Because they are some guy (or gal's) business, each tree that gets cut down for Christmas gets another one planted in its stead and the cycle of oxygen production continues.

If you start to experience an «unclean» smell from your No Prep Soaker Pads you may add 1 / 8c of chlorine or oxygen bleach to your wash cycle every 4 - 6 weeks.

Still, same - sex marriage and LGBT issues in general have not received much oxygen this election cycle, despite President Obama say this summer he now favored marriage rights for gay couples and a record number of gay and lesbian candidates running for public office.

Her latest intervention gave her another news cycle dominated by Brexit, splashes across the press of her looking tough, more adulation from the Daily Mail, other parties gasping for oxygen.

Curiously, the decline in atmospheric oxygen over the past 800,000 years was not accompanied by any significant increase in the average amount of carbon dioxide in the atmosphere, though carbon dioxide concentrations do vary over individual ice age cycles.

The lack of oxygen will also affect other elemental cycles on the planet, such as nitrogen and carbon.

Another major advance in lithium - ion batteries is reported in the Nature Communications paper, «Mitigating oxygen loss to improve the cycling performance of high capacity cation - disordered cathode materials,» which shows that disordered materials can be fluorinated, unlike other battery materials.

So the original 6 pounds of carbon combine with 15 or 16 pounds of oxygen, minus some soot, water, and other by - products, and, bingo, by driving 21 miles down the road, my car has just disturbed the balance of the planet's carbon cycle by producing 19 pounds of CO2.

The coating is thin enough to let oxygen pass through to the particle, but robust enough to protect it through many cycles of ROS absorption.

To better understand the cycle of magma production, the researchers analyzed oxygen isotope ratios in quartz and zircon, water - and heat - resistant minerals, from volcanic rocks in the Yellowstone caldera.

In addition, a supercritical turbine could fit into a directly heated cycle, where a fuel like natural gas burns in the presence of pure oxygen inside the turbine, creating only water and carbon dioxide as waste.

When these worms began to mix up the ocean floor's sediments (a process known as bioturbation), their activity came to significantly influence the ocean's phosphorus cycle and as a result, the amount of oxygen in Earth's atmosphere.

«The resulting six-fold increase in oxygen would have significantly influenced biogeochemical cycling of [oxidation] sensitive elements such as [iron] and [sulfur] and ultimately increased the oxygen concentration of the atmosphere,» the team writes in a paper published online today by the journal Science.

This means that (1) animals are directly involved in an oxygen - regulating cycle or feedback loop that has previously been overlooked, and (2) we can directly test the idea (despite the uncertainties associated with looking so far back in time) by looking for a decrease in ocean oxygenation in conjunction with the spread of bioturbation.

Co-author Professor Tim Lenton of the University of Exeter adds: «We already think this cycle was key to helping stabilise atmospheric oxygen during the Phanerozoic (the last 542 million years)-- and that oxygen stability is a good thing for the evolution of plants and animals.

Yet in addition to extinctions there are many dramatic, well - documented effects of introduced species, such as shifts in regional climate, reduced groundwater levels, altered nutrient cycling, and reduced oxygen levels in aquatic systems, which affect the abundance and distribution of native species.

In the long term, screwing with the base of the food chain and the oxygen cycle potentially threatens the entire dynamic of life on Earth.

Measuring pH lets us monitor the carbon cycle, which underpins the basic chemistry of the ocean and generation of oxygen in the air.

The researchers inserted tiny gas sensors into the tracheae of the pupae and monitored the relative amounts of oxygen and carbon dioxide during normal breathing cycles.

The system provides «precision measurements of material motion that here relate directly to oxygen levels,» she says, enabling researchers to measure exactly how the oxygen is cycling in and out of the metal oxide.

They will follow this approach to design a novel treatment plan by rationally combining gemcitabine with cell cycle checkpoint inhibitor, oxygen - enrich gas inhalation, and radiotherapy to significantly inhibit the growth of aggressive glioma.

Britton Stephens, an NCAR scientist and the project's co-principal investigator, said HIPPO flights have collected the first large - scale measurements of carbon dioxide and oxygen cycling into and out of surface waters of the Southern Ocean.

«A proper accounting of biogeochemical cycles in the oceans reveals that methane has a much more powerful foe than oxygen,» said Stephanie Olson, a graduate student at the University of California, Riverside, a member of the Alternative Earths team and lead author of the new study published September 26 in the Proceedings of the National Academy of Sciences.

Two recently published studies detail the cycle of oxygen depletion in the lake's bottom waters, and the ecological impacts from bacteria to fish.

Quantoken ignores the geological carbon cycle, presuming that the entire present O2 inventory is identical to the O2 component of primordial CO2, and that no other sources or sinks of carbon or oxygen are relevant.

3 By making mathematical models of the carbon cycle in order to understand how oxygen — critical for large, complex organisms — was able to build up in the atmosphere because of changes in how organic matter decays;

Countering the prevailing theory that cellular hydrogen peroxide signaling is broad and non-specific, Whitehead Institute scientists have discovered that this reactive oxygen species (ROS) in fact triggers a distinct signal transduction cascade under control of the mitochondrial respiratory chain — the Syk pathway — that regulates transcription, translation, metabolism, and the cell cycle in diverse cell types.

(Though, since that first episode covered primarily the oxygen cycle, diatoms and algae blooms were just mentioned as the source of half of the oxygen we breathe, as opposed to rainforests, which are important for the rain cycle that gets nutrients from the mountains into the oceans but which are using up all the oxygen they produce.

The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice - sheet growth alone indicating an ice age of some size.

Their purpose was to reconstruct genomes of organisms that may contribute to biogeochemical cycling in oxygen - free subsurface environments.

«The previous understanding of the nitrogen cycle was that nitrogen was lost from the ocean only in three regions where oxygen is scarce.

In a similar way, in heart health, my area of medical specialty, the fact that we take up oxygen - rich blood from the lungs, circulate it to the heart and other organs, and cycle the waste back for elimination is a true miracle that occurs every second of our lives.

Abnormal Krebs cycle and / or oxidative phosphorylation cause (s) not only glucose hypometabolism but also the increased generation of reactive oxygen species (ROS), oxidative damage, and programmed cell death such as apoptosis.

VO2 max (also referred to as maximal oxygen consumption, peak oxygen uptake) is the maximum rate of oxygen consumption as measured during incremental exercise, usually on a treadmill or cycle ergometer.

Furthermore, substituting oxygen for sulfur — causing oxidation — in sulfur - containing amino acids (including in the more rare S - adenosylmethionine) can have effects in methionine residues where the surface is exposed, causing an oxidation - reduction cycle, imparing the activity of «methionine sulfoxide reductase and the subsequent accumulation of methionine sulfoxide residues [that] are associated with age - related diseases, neurodegeneration, and shorter lifespan.»

Lactic acid is created when oxygen is not present and glucose goes through fermentation instead of the Kreb's cycle.

Generation of reactive oxygen species, or free radicals such as superoxide and hydrogen peroxide, is a normal byproduct of metabolism, but can damage cellular machinery when excessive and impair the production of cellular energy, which becomes a vicious cycle as energy - intensive repair processes become untenable (25, 26).

The benefits of low level aerobic work (walking, hiking, cycling, swimming): — increases capillary network (blood vessels that supply the muscle cells with fuel and oxygen)-- increases muscle mitochondria — increases production of fat - burning and fat - transporting enzymes — more fun, because you can talk with a partner while doing it

These cycles of decreased and increased blood oxygen levels can cause inflammation that may contribute to atherosclerosis, the buildup of

Any engine struggles at altitude because there is less oxygen which is required for the actual burn part of the combustion or compression cycle.

One notion is that perhaps the singularity was the relic of an earlier, collapsed universe — that we're just one of an eternal cycle of expanding and collapsing universes, like the bladder on an oxygen machine.

Still I find sentences like «It was discovered in the 1970's that the pacing of the cycles seen in benthic foraminiferal oxygen isotopes was highly correlated to the Milankovitch cycles of orbital variability (Hays, Imbrie and Shackleton, 1976).»

The natural cycle to release the oxygen back into the atmosphere hasn't been enough to keep up with our current generation of the gas.

Just as there is no «33 °C warming by greenhouse gases from the minus 18 °C it would be without them» — when the real blanket which slows heat loss is reinstated — the heavy voluminous fluid ocean atmosphere of real gas, mainly nitrogen and oxygen, and when the Water Cycle is reinstated.

There could be a closed cycle with some form of solar energy used to break water up into hydrogen and oxygen and then the hydrogen and oxygen being recombined into water in the FCE.

(Though, since that first episode covered primarily the oxygen cycle, diatoms and algae blooms were just mentioned as the source of half of the oxygen we breathe, as opposed to rainforests, which are important for the rain cycle that gets nutrients from the mountains into the oceans but which are using up all the oxygen they produce.

Kandiano, E. S., Bauch, H. A. & Müller, A. Sea surface temperature variability in the North Atlantic during the last two glacial - interglacial cycles: comparison of faunal, oxygen isotopic, and Mg / Ca - derived records.

Using modern spatiotemporal records of oxygen production and oxygen isotopes in terrestrial precipitation, the authors demonstrate that their proposed relationship is robust over the modern seasonal cycle.

Via the Water Cycle, it lowers it 52 °C from the 67 °C the real greenhouse would be without it, this being the thermal blanket of the real gas fluid ocean atmosphere of mainly nitrogen and oxygen around our Earth: