Sentences with phrase «on hydrogen sulfide»

That difference suggests that drugs based on hydrogen sulfide may work in men who do not respond to Viagra and similar classes of drugs.

The company EcoVerde, by Mexican Humberto Uribe Luis Lobo, designed a new filtration system that removes odor and other pollutants from wastewater through a biological process based on bacteria that feed on hydrogen sulfide, a substance characterized for a rotten egg - like stench.

Not exact matches

The diagram on the right shows how two positive hydrogen ions gain electrons through a chemical reaction at the moly sulfide nanocluster to form pure molecular hydrogen.

Iliffe and Brankovits haven't zeroed in on what kinds of chemosynthetic bacteria actually exist there, or what their food sources could be — methane, hydrogen sulfide and ammonia are all potential candidates.

As bacteria fed on the creatures that rained from above, they produced toxic gases — methane, carbon dioxide, and hydrogen sulfide — that in turn bubbled up to poison the birds and insects flying overhead.

During the Boring Billion, the planet's oceans were light on oxygen and heavy on toxic hydrogen sulfide.

Worms that made more hydrogen sulfide lived longer, on average, than those that made the normal amount of the gas.

In 2015, chemists from Cambridge University, led by John Sutherland, who is a co-author on the current study, discovered a way to synthesize the precursors to RNA using just hydrogen cyanide, hydrogen sulfide, and ultraviolet light — all ingredients that are thought to have been available on early Earth, before the appearance of the first life forms.

Professor Songtao Shi, principal investigator on the project, said the presence of hydrogen sulfide produced by the cells governs the flow of calcium ions.

Gibbons adds that millions of years of adaptation to low - oxygen waters allowed the goby «to capitalize on the changes to the system — both increased hypoxia and [hydrogen sulfide] as well as the jellyfish.»

«What we found is a fish with an amazing tolerance to anoxia and hydrogen sulfide that literally holds its breath on the seafloor by day — where it eats lots of carbon - rich mud,» says biologist Mark Gibbons of the University of the Western Cape in Bellville, South Africa, another participant in the study.

On the other hand, the chemoautotrophic hypothesis posits that iron sulfide reactions released hydrogen, which combined with carbon dioxide in the atmosphere to form organic compounds.

LCROSS also supported this theory when it crashed into the south pole by uncovering, in addition to water, other elements that are abundant on comets: carbon dioxide, hydrogen sulfide, and methane.

The researchers found that about 170 of the extremophilic fish's 35,000 or so genes were turned on, or upregulated, to detoxify and remove the hydrogen sulfide.

Sutherland's group built on earlier work that had looked at two chemicals likely to have been found on a lifeless Earth: hydrogen cyanide and hydrogen sulfide.

Since the recent discovery of tremendous biological effects of nitric oxide, other small gaseous molecules such as carbon monoxide or hydrogen sulfide have emerged to be similarly important in cell signaling, with a great impact on pathophysiology of various diseases.

As it turned out, they were feeding on bacteria that got their energy from hydrogen and hydrogen sulfide emanating from underwater volcanic vents.

From RNase L to the gut to hydrogen sulfide to LDN, Dr. De Meirleir has been on the cutting edge of treatment and research.

With the removal of hydrogen sulfide, heavy metals and other chemicals, dry skin and damaging effects on hair and scalp dryness is gone.

The smell appears to come primarily from the digestion of sulfur - rich foods, so to cut down on the stench, experts have recommended cutting back on foods such as meat and eggs (hydrogen sulfide is called «rotten egg gas» for a reason).

So how can we explain people who are on a whole food plant based diet with little or no processed food who pass noxious hydrogen sulfide gas?

For more on the relationship between hydrogen sulfide and inflammatory bowel disease, see my video Preventing Ulcerative Colitis with Diet.

This flight focuses on detecting sulfur dioxide and hydrogen sulfide contents after it [Mount Agung] has a phreatic eruption on Tuesday,» Umar said on Thursday as quoted by tribunnews.com.

These organisms released enormous quantities of hydrogen sulfide into the atmosphere, which had the effect of poisoning most life on land, and destroying the ozone layer.

Apparently in warmer, superanoxic conditions some sea bacteria turn CH4 into H2S (hydrogen sulfide) which kills life, and is thought to have nearly done in what meager life remained during the end - Permian 251 mya after serious 6 - 8C warming over 10000s of years did a nasty job on life.

Focusing on the Permian - Triassic boundary, Gregory Ryskin [1] explores the possibility that mass extinction can be caused by an extremely fast, explosive release of dissolved methane (and other dissolved gases such as carbon dioxide and hydrogen sulfide) that accumulated in the oceanic water masses prone to stagnation and anoxia (e.g., in silled basins).

Terrestrial plants thrive on carbon dioxide, while hydrogen sulfide kills them.

In rock strata, the anoxic, zones are marked by regions of black as the hydrogen sulfide producing bacteria - filled waters eventually take on the color of tar.

What you did not know was that the other half of the book essay from which the post was excerpted concerned Pacific corals, and exposes scientific misconduct in the main paper (omission of data, specifically hydrogen sulfide at the Dobu Island seep with an L50 of 30ppb) on the part of Australian researchers at Milne Bay, misconduct rewarded by prominent mention in the Seattle Times Sea Change series.

In this theory, the anaerobes took over and produced enormous quantities of hydrogen sulfide, which poisoned life on land for several million years.