Sentences with phrase «high enough concentrations of»

That's because — unlike antibacterial soaps used in hospitals and other clinical settings — the antibacterial soaps sold to the public don't contain high enough concentrations of triclosan to kill bacteria such as E. coli.»

- Flea collars are unable to sustain high enough concentrations of insecticide over the animal's entire body.

Antisense therapies for cancer, for example, have had trouble delivering high enough concentrations of DNA to tumors, says Nyce.

A high enough concentration of photons of any wavelength can cause heating.

Not exact matches

The vast majority of us will never be exposed to aluminium in high enough concentrations to do damage.

Rent stabilization certainly is not enough to create viable mixed income communities, especially with high concentrations of low income earners.

The per and tim genes are active until concentrations of their proteins become high enough that the two begin to bind to each other.

The FDA Monitoring Program data set, which includes only 19 spiny dogfish specimens, puts the average mercury concentration in dogfish over 0.5 parts per million — high enough to result in an advisory for women of reproductive age and children in many states.

When carbon dioxide dissolves in seawater, it forms carbonic acid, and in high enough concentrations carbonic acid is corrosive to the shells and skeletons of many marine organisms.

BPTES has been used in animal models for a variety of cancers but has not substantially reduced tumor sizes, probably because the drug concentration in tumor tissue is not high enough when using conventional drug formulation methods, say the scientists.

They found that the local concentration of catalytic product helping fuel their movement leads to a reversal of the direction of the collective movement of nanomotors, provided that they are in high enough concentration.

Although scientists have observed that the nucleation process nearly always involves sulfuric acid, sulfuric acid concentrations aren't high enough to explain the rate of new particle formation that occurs in the atmosphere.

The team is exploring a way to store the energy produced while the concentration of lactate is high enough and then release it gradually.

Where the concentration of WOX5 is high enough, the stem cell niche is able to maintain the pluripotent stem cells.

They then monitored the fate of the patch off and on for five weeks, while also adding supplemental iron fertilizer after two weeks to keep concentrations high enough to promote growth.

Andrews's skepticism stems not from doubts about the nanotubes themselves — they are more than strong enough for a space elevator — but from the difficulty of embedding them in high concentrations in a material like polypropylene.

At some sites, amphetamine concentrations are high enough to alter the base of the aquatic food web.

If the concentration of hydrogen rises high enough, flammable uranium hydride (UH3) will start to form instead of the oxide.»

At a sufficiently high level of concentration, the rods are pushed close enough together that they begin to align parallel to one another, forming what is known as a «nematic» phase.

More broadly, this is how bacteria coordinate their actions in large groups: When the local concentration of autoinducers gets high enough, the bacteria know a crowd is present, and they flip over from solitary mode to group behavior.

The concentrations of ivermectin in the blood of humans taking the drug are high enough to kill mosquitoes that bite them.

When a group of protein or RNA molecules gather together in a high enough concentration, physical forces can attract them to one another, causing them to phase - separate, forming droplets within the cell.

For HIV to develop resistance mutations to antiretroviral drugs (ARVs), he said, drugs need to be at an intermediate concentration: Low enough so that there is some viral replication, but high enough so that there is selective pressure to favor the evolution of a mutant.

The abundance of some zooplankton (i.e. microscopic crustaceans in the water that eat algae) was lower at higher salt concentrations, but not low enough to cause a bloom of algae.

The first step in both direct and cell - based gene therapy is packaging a therapeutic transgene into a delivery vehicle (e.g., a viral vector), followed by expansion of its host cell lines to produce high - enough vector concentrations.

* Oddly enough, however, the experiments with fresh pancreatic islets and fat cells taken from the mice suggested that the positive effects of uncarboxylated osteocalcin on insulin only occurred at concentrations extremely low compared to those of undercarboxylated osteocalcin normally present in mice, while the effects on adiponectin and energy expenditure only occurred at normal to high concentrations.

Once 5 - MTHF has entered the CNS, it can be transported into the neurons by the reduced folate carrier (RFC) or it can diffuse across the blood - brain barrier without a carrier if blood concentrations of folate are high enough.

It makes sense, then, that high - vitamin cod liver oil should serve as a safe standalone supply of vitamin A even during the winter, while liver from land animals should either be used during seasons where the supply of UV - B rays from the sun is rich enough to guarantee adequate vitamin D, or in conjunction with vitamin D - rich foods such as lard from pastured pigs, oily fish, shellfish, and egg yolks from pastured chickens, all of which supply smaller but substantial amounts of vitamin D. (For a list of these and other food sources of vitamin D with specific concentrations listed, see Appendix 3.

Frequency of use helped to address the dilution factor (the concentration of silver must be high enough at the infection for efficacy, and must be maintained for sustained effectiveness), as did bypassing the digestive system.

Once enough are present in the water, the body absorbs them through osmosis, which is the movement of compounds from higher to lower concentration.

It contains a high concentration of antioxidants to keep your complexion evenly toned, plus it's gentle enough to use on super dry, delicate skin types.

Some of those compounds can be carcinogenic when we consume them in high - enough concentrations.

Some have criticized the charter sector for not doing enough to serve children who are at - risk, pointing to the fact that, as compared to the traditional public school sector, fewer charter schools have high concentrations of at - risk students.

These three substances are common in urine and if they exist in high enough concentrations, they will bind together in the form of crystals.

This is the most effective delivery method, because it allows plasma concentrations of the vitamin to reach levels high enough to potentially kill cancer cells and offer other benefits.

Not only do you need to worry about giving your dog enough protein, but you need to avoid excessively high concentrations of certain vitamins and minerals as well as a healthy balance of certain amino acids and essential fatty acids.

Northern hemisphere concentrations are a bit higher than they are in the Southern hemisphere (here), but the magnitude of the difference is small enough to support the conclusion from the methane budget that tropical wetlands, which don't generate much interhemispheric gradient, are a dominant natural source (Kirschke et al 2013).

Carbon dioxide removal addresses the root cause of climate change — high concentrations of the greenhouse gas in the atmosphere — and generally have well - understood benefits and risks, but current technologies would take decades to achieve moderate results and be cost - prohibitive at scales large enough to have a sizeable impact.

«What our study shows is that observed water vapor concentrations are high enough and temperatures are low enough over the U.S. in summertime to initiate the chemistry that is known to lead to ozone losses,» said Harvard atmospheric scientist David Wilmouth, one of the paper's co-authors, in an email.

Methane that escapes the sea is generally a small fraction of methane that is released from clathrates at the sea floor, though if the concentration rose high enough so much could make it to the atmosphere that the impact of methane as a GHG in air (before it devolves to CO2 in air) overwhelmed the negative effects of methane decomposing to CO2 in the oceans..

«Climate science» as it is used by warmists implies adherence to a set of beliefs: (1) Increasing greenhouse gas concentrations will warm the Earth's surface and atmosphere; (2) Human production of CO2 is producing significant increases in CO2 concentration; (3) The rate of rise of temperature in the 20th and 21st centuries is unprecedented compared to the rates of change of temperature in the previous two millennia and this can only be due to rising greenhouse gas concentrations; (4) The climate of the 19th century was ideal and may be taken as a standard to compare against any current climate; (5) global climate models, while still not perfect, are good enough to indicate that continued use of fossil fuels at projected rates in the 21st century will cause the CO2 concentration to rise to a high level by 2100 (possibly 700 to 900 ppm); (6) The global average temperature under this condition will rise more than 3 °C from the late 19th century ideal; (7) The negative impact on humanity of such a rise will be enormous; (8) The only alternative to such a disaster is to immediately and sharply reduce CO2 emissions (reducing emissions in 2050 by 80 % compared to today's rate) and continue further reductions after 2050; (9) Even with such draconian CO2 reductions, the CO2 concentration is likely to reach at least 450 to 500 ppm by 2100 resulting in significant damage to humanity; (10) Such reductions in CO2 emissions are technically feasible and economically affordable while providing adequate energy to a growing world population that is increasingly industrializing.

Strangely enough, although some researchers fret higher CO2 concentrations will reduce calcification, it is the very process of calcification that results in the «alkalinity pump.»

This means that just by targeting these dirty old clunkers, badly tuned rust - buckets, and street racers, we could make a significant impact on air quality, especially in urban areas where the density of vehicles gets high enough for pollutant concentrations to reach dangerous levels.

Now even if the flow has been varied by the big pipes, there's still going to be an increasing level of dye in the water, until the concentration is high enough that the amount of diluted dye going out of the bigger pipes equals the amount of dye coming in.

The concentration of CO2 in the atmosphere is high enough to cause grave risk for the planet, but it is still far more dilute than the CO2 streaming from a power plant smokestack.

When H2O concentration gets high enough, water condenses out, forming clouds, which block / reflect sunlight (this is NEGATIVE feedback) reducing the temperature of the earth.