Sentences with phrase «as low oxygen conditions»

This ability to withstand stresses, such as low oxygen conditions and a dearth of calories, may allow animals to live longer.

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.

RoR dams can cause a spike in methylmercury in two ways — they can form small reservoirs, called headponds, which flood soil and create slow - flowing, low - oxygen environments; or they can create higher temperatures in the stream as a result of the reduced flow conditions when portions of the stream are diverted to the turbines.

Recent studies showed that low oxygen conditions increase levels of a family of proteins known as HIFs, or hypoxia - inducible factors, that turn on hundreds of genes, including one called NANOG that instructs cells to become stem cells.

It also triggers stress response and turns on DNA repair pathways (that are also found in mammals) that allow the worms to better endure adverse conditions such as saltiness, heat, or low oxygen.

«Urban organics» thus remain at higher levels longer, says Canuel, «delivering more organic material to the river mouth and increasing the likelihood that low - oxygen conditions will develop in downstream locations such as estuaries and the coastal ocean.»

Mangrove rivulus, which can live out of the water for extended periods of time (days or weeks, as long as the conditions are moist), uses its specialised jumping technique when water has low oxygen concentrations or high levels of hydrogen sulphide, or to escape predators and search for terrestrial prey such as crickets.

Dr Hawkes, formerly of Bangor University, added: «The wider implications of these findings are for low oxygen medical conditions in humans, such as heart attack and stroke — suggesting what adaptations might help prevent problems in the first place and learning how animals have managed to cope with really extreme environments.»

Perhaps the ultimate solution to keeping transplanted stem cells alive will be to use helpers that give off a cocktail of growth factors, he suggests, as well as pre-conditioning for low oxygen conditions and scaffolds.

Lowest readings of dissolved oxygen were found in late summers, as is the case in other estuaries along the Oregon coast, when incoming salty seawater settles longer in the estuary and warmer, drier conditions reduce the amount of fresh water from the Coos River.

Methane from freshwater is often a byproduct of bacterial metabolism, as they break down organic matter under low - oxygen conditions, like in the sediment at the bottom of a lake.

The finding has far - reaching implications in understanding and treating low - oxygen health conditions such as coronary artery disease and tumor growth.

Mootha and his team had hoped to find benefits for more moderate low - oxygen conditions, such as intermittent periods of hypoxia or slightly higher levels of oxygen.

Known as the «sulfur pearl of Namibia,» this anaerobic species digests organic matter under low - oxygen (or no - oxygen) conditions that are caused by high rates of phytoplankton growth in the Benguela upwelling zone, and the subsequent decay of large masses of dead phytoplankton that have fallen to the seafloor.

Researcher Gregg Semenza introduces the Vascular Biology Program, where scientists trace cells as they move through the body and study the relationship between low - oxygen conditions, blood vessel growth, and cancer.

The more minerals you lose, the greater the risk becomes for conditions such as osteoporosis, coronary artery disease, high blood pressure and a long list of degenerative diseases which are associated with low oxygen and mineral levels such as accelerated aging.

Silled basins in humid areas such as Kau Bay (Indonesia), the Baltic Sea, and the Black Sea, are particularly sensitive to low oxygen conditions because of salinity stratification and associated reduced vertical mixing (Kemp et al., 2009).